Superautomatic beverage machines
The milk frothing apparatus in coffee machines addresses inefficiencies in existing designs by using a four-way valve body with adjustable orifices and a rocker latch button for efficient frothing and easy assembly, suitable for both hot and cold milk.
Patent Information
- Application Number
- PCT/CN2025/098867
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2025-03-14
- Filing Date
- 2025-06-03
- Publication Date
- 2025-12-11
AI Technical Summary
Existing coffee machines have suboptimal designs in milk frothing devices for both hot and cold milk frothing, and the interlocking and unlocking structures for the milk reservoir are inefficient.
A milk frothing apparatus with a four-way valve body and adjustable orifices for varying flow diameters, enabling separate settings for hot and cold milk frothing, and a rocker latch button for easy assembly and disassembly.
The apparatus achieves efficient frothing of both hot and cold milk with improved assembly and disassembly, reducing blockages and facilitating cleaning.
Smart Images

Figure CN2025098867_11122025_PF_FP_ABST
Abstract
Description
SUPERAUTOMATIC BEVERAGE MACHINESCROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority to PCT Application No. PCT / CN2025 / 082760, filed on March 14, 2025, Chinese Patent Application No. 202410794481.1, filed on June 19, 2024, Chinese Patent Application No. 202410719862.3, filed on June 5, 2024, Chinese Patent Application No. 202410707362.8, filed on June 3, 2024, Chinese Patent Application No. 202421279387.4, filed on June 5, 2024, Chinese Patent Application No. 202421255810.7, filed on June 3, 2024, and Chinese Patent Application No. 202421246957. X, filed on June 3, 2024, the entire contents of each of which are hereby incorporated by reference.FIELD
[0002] The present disclosure relates generally to automated beverage machines.BACKGROUND
[0003] The widespread consumption of coffee beverages has fostered the development of a variety of machines for brewing coffee and espresso drinks. One class of coffee machine, the so-called “fully automatic” or “super-automatic” coffee machine, automates the entire coffee preparation process from the grinding of coffee beans to the dispensing of a prepared beverage. These machines frequently offer a diverse array of drinks including, e.g., espresso shots, lattes, and mochas, allowing the machines to satisfy a wide range of drink preferences. Fully automatic coffee machines are also, in general, easy to maintain, since users only need to perform simple upkeep tasks such as refilling a coffee bean hopper on occasion. The versatility and convenience of fully automatic coffee machines have increased their popularity in settings such as corporate offices that are frequented by high numbers of coffee drinkers.SUMMARY
[0004] In general, systems, devices, and methods for automated beverage machines are provided.
[0005] To overcome the aforementioned shortcomings, an objective of the present disclosure is to provide the industry with a milk frothing apparatus and a coffee machine having the same, addressing the technical issues in existing coffee machine products. Specifically, the present disclosure tackles the suboptimal design of the valve body channel structure in milk frothing devices of existing coffee machine products, which is unsuitable for both hot and cold milk frothing and extraction processes, as well as the suboptimal design of the interlocking and unlocking structure for the mounting and dismounting of the overall milk reservoir. This objective is achieved through the following technical solutions.
[0006] There is provide a milk frothing apparatus, comprising a milk reservoir and a milk cartridge, wherein a bottom portion of the milk cartridge is engaged with an opening at a top portion of the milk reservoir; an adjustment mechanism is provided in the milk cartridge and comprises a steam input channel, an air suction channel, a gas-liquid suction channel, and a milk foam output channel, with the four channels in communication with one another; a suction pipe of the adjustment mechanism in the milk cartridge extends into the milk reservoir, and is connected to the gas-liquid suction channel of the adjustment mechanism through a suction pipe connector; a steam joint is provided on a side of the adjustment mechanism where the steam input channel is located; a side of the adjustment mechanism where the air suction channel is located is in commutation with an air pressure small hole of an air intake valve at an air intake knob; and a milk outlet pipe provided on a side of the adjustment mechanism where the milk foam output channel is located extends out of the milk cartridge. The key structural design feature lies in that the main body of the adjustment mechanism is a four-way valve body; the valve body is fixedly provided in the milk cartridge; the gas-liquid suction channel of the valve body and a circular top end face of the suction pipe connector are provided with a stationary orifice and a movable orifice, respectively; and the movable orifice moves relative to the stationary orifice to adjust a change in a minimum flow area in an axial direction between the gas-liquid suction channel and the air suction channel. The specific shapes of the movable orifice and the stationary orifice are not limited to the elongated orifice and special-shaped orifice mentioned below, as long as they satisfy the following requirements: the movable orifice has different flow diameters at both ends; the flow diameter of the stationary orifice is constant; and rotating the suction pipe connector at the movable orifice or the suction pipe connector at the stationary orifice can change the minimum flow area.
[0007] The orifice at the gas-liquid suction channel of the valve body is an elongated stationary orifice, and the movable orifice on the circular top end face of the suction pipe connector at the gas-liquid suction channel of the valve body is a special-shaped orifice. The special-shaped orifice of the suction pipe connector is eccentrically provided on a side of the suction pipe connector where the circular top end face is located, and the special-shaped orifice is arc-shaped and enlarges from one end to the other end. A raised adjustment lug is provided on a side of the suction pipe connector extending out of a bottom portion of the valve body. The suction pipe connector and the suction pipe are integrally formed. Thus, the above structure enables adjustable minimum flow diameter of the suction pipe through the adjustment lug of the suction pipe connector. Specifically, the flow diameter between the special-shaped orifice of the suction pipe connector and the gas-liquid suction channel of the valve body is variable, providing at least two flow diameter specifications. These two flow diameter specifications respectively correspond to two different milk foam temperatures, specifically designed for hot milk and cold milk applications. Meanwhile, the special-shaped orifice may also be arranged in the gas-liquid suction channel of the valve body, and the elongated orifice at the gas-liquid suction channel of the valve body may also be arranged in the position of the special-shaped orifice of the suction pipe connector, thus enabling interchangeable arrangement between the two orifices.
[0008] One end of the steam joint on a side of the valve body where the steam input channel is located extends out of the milk cartridge. The air intake valve on the side of the adjustment mechanism where the air suction channel is located is connected to the air intake knob at a top portion of the milk cartridge. The air suction channel is aligned with the air pressure small hole of the air intake valve. In a main channel at one end of the valve body, there is provided the steam joint of which the other end is inserted into and fixed in the valve body through a conical boss at the end of the steam joint. On both sides of the boss of the steam joint, triangular notches are symmetrically provided. While the steam input channel of a central hole at the boss of the steam joint is aligned with the milk foam output channel in the main channel of the valve body, a channel clearance is provided between the steam input channel of the steam joint and the milk foam output channel of the valve body. Above the steam input channel of the steam joint, the air suction channel is provided in the main channel of the valve body, and below the steam input channel of the steam joint, the gas-liquid suction channel is provided in the main channel of the valve body. A connection between the steam joint and the valve body, a connection between the suction pipe connector and the valve body, and a connection between the milk outlet pipe and the valve body are each provided with a sealing ring or sealing connector. The air intake valve may also be arranged in the milk cartridge according to the prior art, and quick connection can be achieved through an inserted quick connector. The channel clearance within the valve body is used for the regulation and buffering of the internal pressure of the valve body.
[0009] The gas-liquid suction channel below the air suction channel in the main channel of the valve body is vertically offset and eccentrically arranged on the milk foam output channel. The design of this offset eccentric structure improves the milk frothing effect within the valve body and reduces the likelihood of blockages.
[0010] A through transverse hole is provided in a middle of the suction pipe connector at a sleeved joint between the suction pipe connector and a chamber below the gas-liquid suction channel of the valve body, and the special-shaped orifice located above inside the transverse hole is offset from a suction pipe orifice below. The transverse hole of the suction pipe connector, which is sealed in the gas-liquid suction channel of the valve body, is configured to regulate and buffer the pressure of the frothed milk.
[0011] A rocker latch button is provided in the milk cartridge. The milk cartridge comprises an upper cover and a lower cover of the milk cartridge. One end of the rocker latch button is hingedly fixed to a pin at a top portion in the lower cover of the milk cartridge. A snap-in hook at the other end of the rocker latch button extends out of the upper cover of the milk cartridge. A raised pressing head is provided on a side of the rocker latch button with a middle arched portion. The pressing head of the rocker latch button extends out of a button hole on a side of the upper cover of the milk cartridge. The milk covers are fixed to a hook groove on a side of a machine body by the snap-in hook of the rocker latch button. The side of the rocker latch button with the middle arched portion is arranged on an outer side of the valve body in the milk cartridge. With the above configuration, it is convenient to unlock the rocker latch button by means of a button head extending out from one side, allowing the milk frothing apparatus to be removed without affecting the use of other components inside the milk cartridge.
[0012] A raised rectangular groove is provided on an outer diameter of the upper cover of the milk cartridge at the snap-in hook of the rocker latch button. The snap-in hook of the rocker latch button is aligned with an opening on a side of the upper cover of the milk cartridge where the rectangular groove is located. This facilitates the positioning and fixation of the milk cartridge to the machine body, while further securing the milk cartridge through the snap-in hook of the rocker latch button.
[0013] The snap-in hook of the rocker latch button and the rectangular groove of the upper cover of the milk cartridge are arranged on a side of the upper cover of the milk cartridge above the steam joint. An end of the steam joint extending out of the milk cartridge has an isosceles trapezoidal head. Thus, while the milk frothing apparatus is connected to a steam interface at a steam pipe in the machine body through the steam joint, the snap-in hook of the rocker latch button and the rectangular groove on the upper cover of the milk cartridge are fixed to the corresponding hook groove and side groove on a side of the machine body.
[0014] The milk reservoir and the milk cartridge are correspondingly rectangular in shape. The steam joint is arranged on a short side of the milk cartridge, and the milk outlet pipe is arranged on a long side of the milk cartridge. The above describes a specific embodiment of the shapes of the milk reservoir and the milk cartridge. The positions of the steam joint and the milk outlet pipe are determined based on their specific shapes.
[0015] The steam joint extends out of the lower cover of the milk cartridge in the milk reservoir and a semicircular opening on a side corresponding to an opening at a top portion of the milk reservoir. A circular ring is provided on a side of a bottom portion of the lower cover of the milk cartridge where the steam joint extends out. As the steam joint extends into the main channel of the valve body through the circular ring of the lower cover of the milk cartridge, a locking post protruding from a side of an outer diameter of the steam joint is screwed and snap-fitted into a locking hole at a bottom portion of a spiral groove through an opening of the spiral groove at an orifice on a side of the main channel of the valve body. The above is a specific structural embodiment for fixing the steam joint to the milk cartridge and valve body, which improves the safety of use through a dual-limit locking structure.
[0016] The milk outlet pipe extends in an L-shape through a pipe hole in a groove on a side of the lower cover of the milk cartridge, out of a U-shaped opening on a side of the opening at the top portion of the milk reservoir. The U-shaped opening of the lower cover of the milk cartridge corresponds to an upper U-shaped opening at a cover opening of the upper cover of the milk cartridge and an inner U-shaped groove at a top portion of a groove of the lower cover of the milk cartridge. The above is a specific structural embodiment, which can also adopt other existing structural forms, as long as they satisfy the usage of the milk outlet pipe and the assembly of corresponding components.
[0017] The milk outlet pipe comprises an L-shaped pipe seat and an oblique pipe head with one end tilted up, and a connection between the L-shaped pipe seat and the oblique pipe head of the milk outlet pipe is provided with a post portion and a groove of symmetrical convex ribs on both sides of an annular ring, and a special-shaped gasket of a corresponding shape. This structure facilitates the assembly, production, and cleaning of the milk outlet pipe, as well as the adjustment of its usage angle.
[0018] Positioning ribs are symmetrically provided on both sides of a knob sleeve at a bottom portion of the air intake knob. While the positioning ribs of the air intake knob are inserted corresponding to positioning grooves on inner diameters of two sides on a knob hole at a top portion of the upper cover of the milk cartridge, the knob sleeve of the air intake knob is inserted into the air intake valve. An inner wall of the air intake valve is provided with a spiral air intake groove. A strip groove is provided on a side of an outer diameter of the knob sleeve at the bottom portion of the air intake knob corresponding to the air intake groove. Limiting blocks larger than the knob hole at the top portion of the upper cover of the milk cartridge are provided on both sides of an opening at a top portion of the air intake valve. The limiting blocks of the air intake valve are snap-fitted and fixed to block holes on both sides of an opening at a top portion of the valve body. The above is a specific design for an air pressure regulation structure, which can also adopt valve bodies of existing similar air pressure regulation structures.
[0019] Integrally formed limiting ribs are symmetrically provided on both sides of a bottom annular groove above the knob sleeve of the air intake knob. A raised limiting post is provided on an outer side of the knob hole at the top portion of the upper cover of the milk cartridge corresponding to the bottom annular groove of the air intake knob. The annular groove of the air intake knob is inserted into the limiting post of the upper cover of the milk cartridge. This structure facilitates the use and limiting of the air intake knob.
[0020] Based on the structural features of the above milk frothing apparatus, the specific structural features of a coffee machine equipped with such an apparatus are as follows: the milk reservoir and the milk cartridge are connected integrally and are arranged on a side of the machine body; and the steam joint extending out of the milk cartridge is inserted into a steam interface fixed to the machine body. Thus, the coffee machine equipped with the milk frothing apparatus can produce milk foam while adjusting the flow diameter between the special-shaped orifice of the suction pipe connector and the gas-liquid suction channel of the valve body to meet the requirements of two different milk foam temperatures.
[0021] While the steam joint is inserted into the steam interface fixed to the machine body, the snap-in hook extending out of one end of the rocker latch button is engaged with the hook groove at the machine body. A protrusion at the milk cartridge at the snap-in hook is inserted into the side groove at the hook groove of the machine body. One end of the rocker latch button in the milk cartridge extends out of an opening of the snap-in hook arranged on a side of a protrusion or rectangular groove above the steam joint, and the other end of the rocker latch button in the milk cartridge is hingedly fixed within the milk cartridge; A pressing head on a side of a middle portion of the rocker latch button extends out of the milk cartridge. Thus, by pressing the pressing head of the rocker latch button, the snap-in hook of the rocker latch button is disengaged from the machine body, allowing the milk frothing apparatus to be removed.
[0022] The structure of the milk frothing apparatus according to the present disclosure has a rational design. It enables overall disassembly and assembly and facilitates cleaning, and it provides good frothing effects and safe usage. It is particularly suitable for extracting and frothing both hot milk and cold milk. It is suitable for use as a milk frothing apparatus and in coffee machines equipped with such an apparatus, as well as for structural improvements in similar products.
[0023] To overcome the above shortcomings, an objective of the present disclosure is to provide the industry with a tamping and brewing device of a coffee machine brewer, which addresses the technical problems of the existing similar products where the tamping push rod in the brewing head seldom uses a hook claw structure to make the brewing head aligned and sealed with the brewing barrel before use, and the tamping push rod seldom employs a structural design combining the screw rod and the push head. This objective is achieved through the following technical solution.
[0024] There is provided a tamping and brewing device of a coffee machine brewer, the device comprising a brewing base assembly and a brewing head assembly, wherein both sides of a top portion of a housing of the brewing base assembly are symmetrically provided with a coffee grounds receiving port and a brewing port; inside the housing of the brewing base assembly, a barrel body that rotates via a barrel base is provided; at an inner bottom portion of the barrel body, a spent grounds discharge push rod that moves up and down is provided; the spent grounds discharge push rod is driven to move up and down by a push rod motor on a side of an outer diameter of the housing of the brewing base assembly, or the spent grounds discharge push rod is caused to move up and down by rotation of the barrel base driven by a barrel rotating motor on a side of the outer diameter of the housing of the brewing base assembly; when the barrel body in the housing of the brewing base assembly rotates to the brewing port on a side of the brewing head assembly, the barrel body in the housing of the brewing base assembly is aligned with a push head of the brewing head assembly; the push head of the brewing head assembly is pressed down and fitted into the barrel body of the brewing base assembly; and an open spent grounds discharge channel is provided at the housing of the brewing base assembly on a side of the brewing head assembly. When the barrel body in the housing of the brewing base assembly is rotated to be aligned with the push head of the brewing head assembly, the spent grounds discharge push rod in the barrel body moves upward as the push head of the brewing head assembly is pressed downward to be fitted into the barrel body, tamping the coffee grounds within the barrel body into a coffee puck; hot water flows into the barrel body to extract and brew the coffee puck; and upon completion of the extraction and brewing, as the push head returns to its original position, the spent grounds discharge push rod continues to move upward, pushing the spent coffee puck out, and the spent coffee puck then falls out through the spent grounds discharge channel of the housing. The key structural design features of the present disclosure lie in that one end of the push head of the brewing head assembly is connected, via a pin, to one end of a screw rod inside a sleeve to form a tamping push rod; the other end of the screw rod extends out of the sleeve and connects to a shaft sleeve of a motor gear assembly; on both sides of an outer diameter of the sleeve, locking hooks are symmetrically provided; middle portions of the locking hooks are fixed to both sides of the sleeve via swing shafts, respectively; torsion springs are provided at the swing shafts of the locking hooks, respectively; one end of the locking hook extends out of a side of the sleeve on the brewing base assembly; raised buckle ribs are symmetrically provided on both sides of an outer diameter of a barrel mouth of the barrel body in the housing corresponding to the locking hooks; when the barrel body in the housing of the brewing base assembly is aligned with the push head of the brewing head assembly, the sleeve causes the locking hooks to move toward the brewing base assembly until the locking hooks engage with the buckle ribs of the barrel body for sealed locking, and at the same time, the motor gear assembly and the screw rod push the push head of the brewing head assembly downward to be hermetically inserted into the barrel body. Further, when the locking hooks engage with the buckle ribs of the barrel body to achieve sealed locking, the locking hooks trigger corresponding microswitches; the microswitches are provided in either the brewing base assembly or the machine body; or when the locking hooks disengage from the buckle ribs of the barrel body and return to their original positions, the locking hooks trigger the corresponding microswitches provided in the sleeve or machine body; or when the screw rod moves to one end, it triggers a corresponding microswitch provided in the brewing base assembly or machine body; and a sealing ring is provided at an outer diameter of the push head of the brewing head assembly, or an end face of the sleeve abuts against the barrel mouth of the barrel body of the brewing base assembly for sealing.
[0025] An end face of the other end of the push head is provided with a filter screen mesh; one liquid outlet hole or symmetrically arranged liquid outlet holes is or are provided in the push head on a side of the end face; an opening on a side of the push head at the liquid outlet hole is provided with a pipe connection groove; the opening of the pipe connection groove corresponds to an external connection hole on a side of the sleeve; a hose is connected to the liquid outlet hole of the push head through the external connection hole of the sleeve and the pipe connection groove of the push head; and the screw rod is connected to the push head through a pin in the pipe connection groove. The above structure facilitates the pipe connection and installation of the liquid outlet holes, wherein the two liquid outlet holes are adapted to drip brewing for American coffee, and high-pressure steam extraction for Italian coffee respectively.
[0026] The other ends of the locking hooks are each curved upwards towards the sleeve to form an arched protrusion; open positioning slots are provided on both sides of the corresponding sleeve, respectively, side plates are symmetrically provided on the outer diameter of the sleeve on both sides of the locking hooks, respectively; and when the push head is retracted into the sleeve, the arched protrusions of the locking hooks engage with the positioning slots of the sleeve. The above structure further facilitates the deployment of the locking hook when it is pushed out, and the retraction of the locking hook when it is pulled in.
[0027] The outer diameter of the sleeve is provided with a head sleeve assembly; inside a housing of the head sleeve assembly, there is provided a threaded sleeve that is integrally connected with the sleeve; external threads on an outer diameter of the threaded sleeve are provided with a gear; while a gear ring on the outer diameter of the gear extends out of the housing, the gear ring on a side of the gear meshes with a transmission gear of a drive motor. The above structure facilitates the fine adjustment of the position of the brewing head assembly moving up and down through the head sleeve assembly.
[0028] The head sleeve assembly is integrally connected with the brewing base assembly, or the head sleeve assembly and the brewing head assembly are integrally arranged in a groove with an opening on a side of a machine body. The above structure facilitates the mounting of the brewing head assembly into the machine body via the head sleeve assembly, or allows the integrated mounting of the head sleeve assembly, brewing head assembly, and brewing base assembly as a single unit into the machine body.
[0029] A gear motor of the motor gear assembly is vertically arranged on a side of the outer diameter of the sleeve; a motor shaft of the gear motor is meshed and connected with the screw rod through internal threads of a central hole of an output gear of the gear assembly, or through external threads of the output gear of the gear assembly. The above structure reduces the spatial occupation of the gear motor, while the transmission force of the gear assembly allows for decreased power and size of the gear motor.
[0030] A barrel lid assembly is provided above a side of the coffee grounds receiving port at the top of the housing of the brewing base assembly; a lid hole of the barrel lid assembly is aligned with the coffee grounds receiving port; and a coffee grounds scraping plate with a U-shaped opening is provided in the barrel lid assembly, and a coffee grounds scraping shaft is provided at an open end of the coffee grounds scraping plate. A torsion spring for resetting may also be provided at the coffee grounds scraping shaft of the barrel lid assembly, and the barrel lid assembly and the barrel body of the brewing base assembly are combined together to increase the coffee grounds capacity.
[0031] A downwardly inclined and protruding spent grounds discharge plate is provided on the outer diameter of the housing of the brewing base assembly at a side where the opening of the spent grounds discharge channel is located. The above structure facilitates the discharge of spent grounds. During the spent grounds discharge process, the spent grounds can be directly pushed out by the spent grounds discharge push rod in the barrel body, or the barrel body may continue to rotate outward and then the spent grounds discharge push rod pushes out the spent grounds to achieve the spent grounds discharge.
[0032] An assembly and disassembly button is provided on a side of the outer diameter of the housing of the brewing base assembly, and the brewing base assembly is fitted into and fixed in the groove with an opening on a side of the machine body through the assembly and disassembly button. The above structure facilitates the assembly, disassembly, and cleaning of the brewing base assembly and the corresponding integrated components.
[0033] A water inlet hole is provided at a bottom corner of the barrel body of the brewing base assembly at a side where the opening of the spent grounds discharge channel is located; and the water inlet hole is connected to a pipe connection hole with a raised outer diameter on a side of the housing through a hose. The above structure facilitates the connection of the hose, and further facilitates the rapid connection of the hose when the brewing base assembly and the corresponding integrated components are assembled and disassembled.
[0034] Raised limiting posts are symmetrically provided on both sides of the barrel body of the brewing base assembly below the buckle ribs; and when the locking hooks are buckled and tightly locked with the buckle ribs of the barrel body, the barrel body continues to be lifted and extended through the rotation of the barrel base, and the limiting posts of the barrel body are abutted and limited at the brewing port on the top of the housing.
[0035] The present disclosure features a rationally designed structure that facilitates production, disassembly, and cleaning, while ensuring convenient water pipe connections. In particular, the tamping push rod in the brewing head achieves exceptional positioning and sealing effect. The present disclosure is suited for use as a tamping and brewing device of a coffee machine brewer and provides further improvements in similar products.
[0036] To overcome the above shortcomings, an objective of the present disclosure is to provide the industry with a precise weighing and coarse / fine grinding mechanism of a push-button coffee machine and a control method thereof. The present disclosure aims to solve the technical problems in the existing similar products, including the difficulty in automatically zeroing the coarseness adjustment mechanism before restarting after grinding and performing real-time detection, the challenge of automatically adjusting the gear position via buttons by the coarseness adjustment mechanism, the difficulty in monitoring the weight of the coffee beans dispensed and the corresponding grind size settings during the bean dispensing and grinding process, and the lack of a gear zeroing button and a coffee grounds quantity zeroing button. This objective is achieved through the following technical solution.
[0037] There is provided a precise weighing and coarse / fine grinding mechanism of a push-button coffee machine, the mechanism comprising a bean box assembly, a bean grinding assembly, and a weighing module, wherein weighing sensors are provided in the weighing module below a bean chamber of the bean box assembly; a bean sweeping gear in the bean chamber of the bean box assembly is driven to rotate by an output shaft of a bottom synchronous motor to dispense beans; during a bean dispensing process, coffee beans enter a grinding blade of the bean grinding assembly through a bean dispensing channel of the bean grinding assembly to be ground, and after the coffee beans are ground, coffee grounds are discharged through a coffee grounds outlet channel of the bean grinding assembly; the grinding blade comprises an upper cone blade assembly and a lower cone blade assembly, with a cone blade adjustment disc provided on an outer diameter of the lower cone blade assembly of the bean grinding assembly; the cone blade adjustment disc is driven to rotate by means of meshing between transmission gears at a stepper motor on a side and teeth of an outer diameter gear ring of the cone blade adjustment disc to drive the upper cone blade assembly in the cone blade adjustment disc to move up and down to adjust a grinding spacing between an upper cone blade of the upper cone blade assembly and a lower cone blade of the lower cone blade assembly; and the lower cone blade in the lower cone blade assembly is driven to rotate by a bean grinding motor. The key structural design features are as follows: an arc-shaped convex point is provided on a side of an outer diameter of a bottom portion of the cone blade adjustment disc; at least one microswitch is provided on the bean grinding assembly corresponding to the arc-shaped convex point; the microswitch, the stepping motor, and the weighing sensors of the weighing module are connected to a circuit board of a control panel via wiring; the control panel is provided with bean grinding weight selection buttons and coarseness adjustment gear buttons; the control panel controls the synchronous motor to rotate clockwise or counterclockwise through a program; and when the arc-shaped convex point of the cone blade adjustment disc triggers one of the microswitches, the cone blade adjustment disc of the bean grinding assembly is at a zero gear position. In the above structure, the stepper motor adjusts the rotation of the cone blade adjustment disc through forward and reverse rotation, causing the upper cone blade assembly in the cone blade adjustment disc to move up and down. Simultaneously, this adjusts the grinding spacing between the upper cone blade of the upper cone blade assembly and the lower cone blade of the lower cone blade assembly, achieving the adjustment of coarseness of the coffee grounds and the automatic adjustment of the gear position via the buttons representing the coarseness levels during grinding. This allows the user to set the coarseness through the coarseness adjustment gear buttons on the control panel. The stepper motor automatically drives the cone blade adjustment disc to rotate to the desired coarseness. This mechanism enables the stepper motor to automatically change the gear position for coarseness through the gear transmission structure, and the program control can automatically adjust the coarseness desired for the user. Existing similar products generally use a knob to set and adjust the coarseness.
[0038] The control panel is provided with a gear zeroing button at the coarseness adjustment gear buttons. Thus, it is convenient to press the gear zeroing button to enable the coarseness adjustment gear position to automatically return to the zero gear position and to trigger the corresponding microswitch. Alternatively, based on the following structural design, the gear zeroing button may be omitted, and the zero gear position can be automatically detected and found through program control upon powering on the machine.
[0039] The control panel is provided with a weighing / gear position display and a control program display; and the control program display comprises grams corresponding to coarse, fine, and zero. This facilitates real-time monitoring of the coarseness status and the weight for coarse / fine grinding, as well as the remaining weight. The weight corresponding to the “zero” button refers to the remaining weight.
[0040] An adjustment angle range between the teeth of the outer diameter gear ring of the cone blade adjustment disc is 85°, and the gear position changes by 3.4° each time the cone blade adjustment disc is turned, with a total of 25 gear positions. The above structure represents a specific gear ratio according to an embodiment, and other gear ratios with different parameters may also be employed.
[0041] The transmission gears at the stepper motor comprise a first transmission gear at a shaft of the stepper motor and a second transmission gear fixed to the bean grinding assembly; the first transmission gear meshes with the teeth of the outer diameter gear ring of the cone blade adjustment disc through the second transmission gear; and central axes of the first transmission gear, the second transmission gear, and the cone blade adjustment disc, as well as central axes of the stepper motor and a horizontal motor of the bean grinding assembly, are respectively arranged at 90 degrees to one another.
[0042] One bean box assembly or two symmetric bean box assemblies is or are provided above the bean grinding assembly; and the weighing module is arranged at a lower edge of the bean chamber of the bean box assembly through a weighing module bracket. The dual bean box assemblies are designed to increase the bean dispensing speed and the amount of beans that can be stored and dispensed.
[0043] Based on the above structural features, the control method of the mechanism is as follows: the cone blade adjustment disc of the bean grinding assembly automatically detects and seeks the zero gear position through the stepper motor upon powering on the machine; the cone blade adjustment disc is adjusted to the finest position by the stepper motor, which is set to be the initial zero gear position; when a “coarse” button among the coarseness adjustment gear buttons on the control panel is pressed, the stepper motor rotates clockwise, and the spacing between the upper and lower cone blades starts to decrease, and each pressing makes a counterclockwise rotation of 3.4°, which is regarded as one gear; when a “fine” button among the coarseness adjustment gear buttons on the control panel is pressed, the stepper motor rotates counterclockwise in an opposite direction, and the spacing between the upper and lower cone blades starts to increase, and each pressing makes a counterclockwise rotation of 3.4°, which is regarded as one gear; and the adjustment angle range of the cone blade adjustment disc is 85°, and the gear position changes by 3.4° each time the cone blade adjustment disc is turned, with a total of 25 gear positions.
[0044] The control panel is provided with a weighing / gear position display and a control program display; the control program display comprises grams corresponding to coarse, fine, and zero; and the weighing / gear position display on the control panel displays weight under normal circumstances, and displays a current gear position during coarseness adjustment.
[0045] The control program display on the control panel displays weight changes sensed by the weighing module during the bean dispensing process of the bean box assembly, with weight data changes displayed on a screen; after a grinding process of the bean grinding assembly is completed, the weighing module displays a residual grounds quantity; and the coffee grounds quantity zeroing button is pressed to reset it to zero; and the coffee grounds quantity zeroing button is provided at the bean grinding weight selection buttons of the control panel. Thus, the weight of coffee beans in the bean chamber and any changes thereof are recorded in real time, and a zeroing operation is performed before the grinding process starts.
[0046] The structure of the present disclosure is reasonably designed, compact, and small in size. It allows for convenient adjustment of coarseness of coffee grounds, and convenient setting and zeroing of coarse / fine grinding quantity and coffee grounds amount. The present disclosure is suitable for use as a precise weighing and coarse / fine grinding mechanism for push-button coffee machines, as well as for further improvements in similar products.
[0047] In order to overcome the afore-described deficiencies, one objective of the present disclosure is to provide the field with a lower powder tamping and spent grounds discharge push rod mechanism for coffee brewer to resolve the technical problem of the products of proximate categories, i.e., the lower push rod is of a suboptimal structural design and is seldom used in combination with the barrel seat and the link rod to realize associative motion or a stopping structure to performing powder tamping and spent grounds discharge. This objective is achieved by the technical solutions described subsequently.
[0048] A lower powder tamping and spent grounds discharge push rod mechanism for coffee brewer, the coffee brewer of which mechanism comprises a brew seat assembly and a brew head assembly, a powder receiving port and a brew port are arranged symmetrically on both sides of a top portion of the brew seat assembly, a barrel body that rotates by means of a barrel seat is arranged in the brew seat assembly, a lower powder tamping and spent grounds discharge push rod that moves up and down is arranged on a bottom portion in the barrel body, the lower powder tamping and spent grounds discharge push rod is caused to move up and down by a rotation of the barrel seat driven by a barrel rotating motor on a side of outer diameter of the brew seat assembly; when the barrel body inside the brew seat assembly rotates to the brew port on a side of the brew head assembly, the barrel body inside the brew seat assembly is aligned with an upper powder tamping and brew push rod of the brew head assembly, and the upper powder tamping and brew push rod of the brew head assembly presses downwards to be sleeved in the barrel body of the brew seat assembly, a spent grounds discharge channel with an opening is arranged on an outer side of a brew head on a side of the brew seat assembly. When the barrel body in the brew seat assembly rotates to be aligned with the upper powder tamping and brew push rod of the brew head assembly of the brew head assembly, the upper powder tamping and brew push rod of the brew head assembly presses downwards to be sleeved in the barrel body while the lower powder tamping and spent grounds discharge push rod moves upwards, to press tight coffee powder in the barrel body to produce a coffee ground puck. Hot water in the barrel body enters to extract and brew coffee. After the extraction and brew is complete, the upper powder tamping and brew push rod resets and the lower powder tamping and spent grounds discharge push rod continues to move upwards while the barrel body continues to rotate towards a side of the spent grounds pouring channel and pushes the coffee ground puck outside. The coffee ground puck falls out from the spent grounds pouring channel of the housing. Essentials of the structural design lie in that a link rod with one end inserted into a chamber in a bottom portion of the barrel body is arranged at an open groove on a side of the bottom portion of the barrel body of the brew seat assembly, a slide hole at one end of the link rod is hinged, by a pin, with one end of the lower powder tamping and spent grounds discharge push rod extending out of the chamber of the bottom portion of the barrel body while a seal ring and a gasket are arranged at a position where the lower powder tamping and spent grounds discharge push rod extends out of the barrel body, an shaft portion at one other end of the link rod is snapped and fixed in fastening grooves on both sides of a groove opening of the open groove of the bottom portion of the barrel body, both ends of the shaft portion of the link rod are provided respectively with a side rod extending and protruding towards a side of a spent grounds pouring channel, side rods of the link rod are located above side rods of the barrel seat protruding in an L shape on both sides, projection posts on an inner side of the side rods are respectively inserted into chutes on both sides of the open groove of the bottom portion of the barrel body, bends on both sides of the barrel seat are snapped and fixed to shaft posts on an outer diameter on both sides of the barrel body above the chutes, the both sides of the barrel seat are connected at the other end to form a U shape and located on an outer side of the barrel body, shaft holes for the barrel rotating motor are arranged respectively on both sides of a snap-fit end of the bends of the barrel seat, a motor shaft of the barrel rotating motor is sleeved into the shaft holes in the barrel seat through a first housing or a second housing; the link rod, the barrel seat, and the barrel body of the brew seat assembly are arranged in a housing formed between the first housing and the second housing, projecting swing shafts are arranged symmetrically on both sides of the barrel body above the shaft posts, the swing shafts of the barrel body are respectively inserted into a first rotation groove and a second rotation groove on an inner side of the first housing and the second housing. As such, the stability and the effect of the associative movement that the barrel seat and the link rod drives the barrel body and the lower powder tamping and spent grounds discharge push rod in the barrel body are improved, so that the lower powder tamping and spent grounds discharge push rod is stopped in corresponding grooves and tracks to realize an up-and-down operative motion. Further, a reset spring may be arranged on the outer diameter of the lower powder tamping and spent grounds discharge push rod in the barrel body.
[0049] A guide post projecting downwards is arranged symmetrically in the open groove of the bottom portion of the barrel body, the pin passes through openings on both sides of the guide post at a connection between a U-shape opening at one end of the link rod and the lower powder tamping and spent grounds discharge push rod, flat key faces are arranged symmetrically on both sides of the lower powder tamping and spent grounds discharge push rod extending out of the open groove of the bottom portion of the barrel body, the flat key faces on both sides of the lower powder tamping and spent grounds discharge push rod abut on an inner side face of the U-shape opening of the link rod through the openings on both sides of the guide post. This structure provides further stability for the up-and-down operative motion of the lower powder tamping and spent grounds discharge push rod by the link rod. That is, the stability is improved by the flat key faces on both sides of the lower powder tamping and spent grounds discharge push rod and the corresponding inner side face.
[0050] A stopping shaft is arranged to project outwards on an end of the shaft portion of the link rod. When the barrel body of the brew seat assembly rotates to the powder receiving port, the stopping shaft of the link rod abuts against a stopping portion in the brew seat assembly.
[0051] A water inlet port is arranged on a side of the spent grounds pouring channel of the bottom portion of the barrel body, the water inlet port is connected with a tube orifice on a side of the brew seat assembly through a hose.
[0052] A screw rod on one end of the upper powder tamping and brew push rod of the brew seat assembly extends out of a motor gear assembly through a sleeve body, a motor shaft of a gear motor on a side of outer diameter of the sleeve body is connected with a drive gear in a gear assembly, the screw rod is connected with inner threads of a central hole of an output gear in the gear assembly.
[0053] A spent grounds pouring plate that inclines and projects downwards is arranged on an outer diameter of a through hole of the barrel body of the brew seat assembly on a side of the spent grounds pouring channel.
[0054] A scraper assembly is arranged above a top portion of the brew seat assembly on a side of the powder receiving port, a cover hole of the scraper assembly is aligned with the powder receiving port, a scraper is arranged in a barrel cover assembly.
[0055] A beam of a raised height is arranged between the first housing and the second housing above the brew seat assembly on a side of the scraper assembly on a side of the spent grounds pouring channel.
[0056] The present disclosure is reasonably structured, with good associative movement and stopping effect between the lower powder tamping and spent grounds discharge push rod and the link rod or the barrel seat, which facilitates continued rotation of the barrel body after powder tamping and extraction to realize spent grounds discharge as well as resetting the barrel body to its original position. It is suitable to be used as a lower powder tamping and spent grounds discharge push rod mechanism for coffee brewers and improvement for products of proximate categories.
[0057] In one aspect, an automatic extracting and brewing-type brewer for a large-dose coffee machine is provided. A tamping assembly can be provided inside a housing of the brewer and can perform reciprocating rotation in a particular direction by means of a first motor on a side of an outside diameter of the housing. A brewing chamber plunger reciprocating up and down can be provided in a brewing chamber inside a main body of the tamping assembly. When a top chamber opening of the brewing chamber of the tamping assembly is rotated to a vertical powder-receiving port on one side of a top portion of the housing, coffee powder can fall into the brewing chamber of the tamping assembly. When the top chamber opening of the brewing chamber of the tamping assembly is rotated to a hydraulic assembly provided obliquely on one other side of the top portion of the housing, coffee powder inside the brewing chamber of the tamping assembly can be compressed into a coffee ground puck inside the brewing chamber by being pushed by a hydraulic assembly while hot water from a boiler flows through the brewing chamber of the tamping assembly into the tamping assembly and is then discharged.
[0058] In some implementations, a waste disposal hole can be provided on one side of the housing below the hydraulic assembly. During a process of the tamping assembly resetting to the side of the powder receiving port, the hydraulic assembly leaves the brewing chamber of the tamping assembly and is reset inside the brewing chamber by a plunger spring. The coffee ground puck can be pushed by the brewing chamber plunger and discharged from a waste disposal hole.
[0059] In some implementations, the hydraulic assembly can be fixedly arranged in a screw. Male threads on an outside diameter of the screw can mesh with female threads on an inside diameter of an oblique gear. An outer gear rim on an outside diameter of the oblique gear extending beyond the hydraulic assembly can mesh with a pinion gear provided at a motor shaft of a second motor.
[0060] In some implementations, a seal base inside the hydraulic assembly can be provided with a liquid discharge channel. A hydraulic joining hole can be provided on a top portion of the liquid discharge channel of the seal base. A pendulum shaft column can be provided symmetrically protruding on both sides of the outside diameter of the main body of the tamping assembly below brewing chamber. The pendulum shaft column can be secured by snap-fit in a shaft engaging groove on both sides at one end of the brewing bracket on a bottom portion of the tamping assembly in the housing. A pendulum shaft of the first motor can be connected by the housing with a shaft socket on a side of the shaft engaging groove of the brewing bracket. A shaft pin can be provided in symmetry protruding from an inner side of one other end of the brewing bracket. The shaft pin of the brewing bracket can be inserted into symmetric pin holes on two sides of a lower outside diameter of the brewing chamber of the tamping assembly. The tamping assembly and the brewing bracket can be connected in one piece to perform reciprocating rotation in a particular direction by means of the pendulum shaft of the first motor. A grounds-pushing plunger can be provided in an end corner groove of the main body of the tamping assembly below the brewing chamber on the side of the shaft pin. A shaft portion of the grounds-pushing plunger can be secured by snap-fit in the end corner groove of the tamping assembly to perform a pendulum motion.
[0061] In some implementations, a plunger head on one end of the grounds-pushing plunger can extend into the tamping assembly and can be connected by insertion into a rod hole at an end tip of a rod portion on one end of the brewing chamber plunger extending from a bottom portion of the brewing chamber in the tamping assembly. The plunger spring can be provided on an outside diameter of the rod portion on a bottom portion of the brewing chamber plunger in the brewing chamber.
[0062] In some implementations, the brewing chamber of the tamping assembly is a brewing chamber capable of being loaded with 39.0 g of coffee powder or another amount of coffee powder. In some implementations, the brewing chamber is a brewing chamber with an inside diameter of 52.0 mm (or another amount) , a free height of 62.0 mm (or another amount) , a minimum height of 25.0 mm (or another amount) after compression, and a maximum height of 46.0 mm (or another amount) after compression. A height of the rod portion of the grounds-pushing plunger can be 13.5 mm or another amount.
[0063] The hydraulic assembly can have a quadrangular shape. The oblique gear can extend beyond four end faces of the hydraulic assembly, respectively.
[0064] In some implementations, the housing includes a first housing and a second housing arranged on two sides of the tamping assembly, a hydraulic housing arranged on the outside diameter of the hydraulic assembly, and a powder-receiving cover at the powder-receiving port. The powder-receiving port can be provided at the powder-receiving cover. The powder-receiving cover on the outside diameter of the powder-receiving port can be secured by snap-fit to the first housing and the second housing on a side above the top chamber opening of the brewing chamber in a vertical state of the tamping assembly. When the first housing, the second housing, and the powder-receiving cover are integrally placed into a brewer slot on one side of the coffee machine, a T-shape head on a top portion of the oblique protruding port of the first housing and the second housing can be engaged and secured in a T-shape hole in a bottom housing aperture of the hydraulic housing in the coffee machine. In some embodiments, the hydraulic assembly, the oblique gear, and the screw are disposed in the hydraulic housing. In some embodiments, the first housing, the second housing, the powder-receiving cover, and the hydraulic housing are connected in one piece to form the housing, and the housing is placed as a whole into the brewer slot on one side of the coffee machine.
[0065] In some implementations, a scraper is provided in a bottom cover opening of the powder-receiving cover above the top chamber opening of the brewing chamber in the tamping assembly. An aperture of the scraper can be aligned to a powder-receiving aperture of the powder-receiving cover. A protruding scraping edge can be provided on a bottom portion of the scraper on a side in a rotation direction of the tamping assembly. The scraping edge of the scraper can be higher than the bottom cover opening of the powder-receiving cover while the scraping edge of the scraper abuts the top chamber opening of the brewing chamber in the tamping assembly.
[0066] A waste disposal plate protruding obliquely can be provided on the outside diameter of the brewing chamber of the tamping assembly below one side of the scraping edge of the scraper.
[0067] An Americano water inlet port and an espresso water inlet port can respectively be provided on two sides of the outside diameter of the housing. The Americano water inlet port and the espresso water inlet port can respectively be in communication with the brewing chamber in the main body of the tamping assembly and a dual liquid discharge channel in the hydraulic assembly. A brewing chamber water inlet nozzle projecting outwards can be provided on one side of the bottom portion of the brewing chamber in the tamping assembly. Hot water from the boiler can flow through the Americano water inlet port and the espresso water inlet port. A bearing hose in the housing can be connected with the brewing chamber water inlet nozzle.
[0068] In some implementations, one other end of the grounds-pushing plunger can be provided with a stopping axis projecting outwards. A stopping column can be provided in the housing above the stopping axis. When coffee powder in the brewing chamber of the tamping assembly is compressed by the hydraulic assembly to produce a coffee ground puck, the stopping axis of the grounds-pushing plunger can abut the stopping column in the housing.
[0069] A pendulum rod fitting to an outer diameter of the brewing bracket can be provided respectively on two ends of the grounds-pushing plunger snap-fit in the end corner groove of the main body. An adjustment hole in an arc shape can be provided in the housing on the outer side of the main body corresponding to the pendulum rod.
[0070] In some implementations, a loading / unloading button can be provided on a loading / unloading side of the housing on the outside of the tamping assembly. The housing can be secured by snap-fit in the brewer slot on one side of the coffee machine by means of the loading / unloading button.
[0071] In another aspect, a machine for brewing a beverage includes a brew chamber configured to contain ground coffee and configured to be fluidically coupled to a water source, a plunger disposed within the brew chamber and configured to supply water to the ground coffee and to eject the ground coffee from the brew chamber, and a ring disposed on the plunger and configured to at least partially seal the brew chamber.
[0072] The brew chamber can include an upper opening through which the ground coffee is configured to be delivered into an interior region of the brew chamber. The plunger can be configured to move upwardly in the brew chamber to eject the ground coffee from the brew chamber. A plurality of holes can be formed in an upper surface of the plunger through which the water is configured to pass to enter the interior region of the brew chamber. The ring can around a circumference of the upper surface of the plunger. The ring can be arranged under the upper surface of the plunger.
[0073] In some implementations, the machine includes a frame arranged above the upper opening of the brew chamber; wherein the frame is configured to scrape across an upper surface of the plunger. The ring can extend around a circumference of the upper surface of the plunger. The ring can be arranged under the upper surface of the plunger.
[0074] In some implementations, the machine further includes a first channel beneath and parallel to a bottom surface of the brew chamber and a second channel extending from an interior region of the brew chamber, through the bottom surface of the brew chamber, and into the first channel. The water can be configured to enter the brew chamber by flowing in the first and second channels.
[0075] The machine can include the water source. The machine can include the water inlet configured to receive the water from the water source. The water can be configured to flow from the water inlet to the first channel. The machine can include a housing that houses the brew chamber, the plunger, and the ring, and the water source can be configured to be removably coupled to the housing.
[0076] In some implementations, the machine includes a grinder configured to grind coffee beans and thereby produce the ground coffee. The brew chamber can be configured to receive the ground coffee from the grinder.
[0077] In some implementations, the machine includes a chute configured to receive the ground coffee from a user. The brew chamber can be configured to receive the ground coffee from the chute.
[0078] In some implementations, the machine includes a grinder configured to grind coffee beans, a chute configured to receive coffee grounds from a user, and a user interface configured to receive an input from a user. The brew chamber can be configured to receive the ground coffee from one of the grinder and the chute based on the input.
[0079] In another aspect, a machine for brewing a beverage includes a brew chamber configured to contain ground coffee and configured to be fluidically coupled to a water source, a tamper configured to compress the ground coffee in the brew chamber to force water received by the brew chamber from the water source through the ground coffee, and a ring disposed on the tamper and configured to at least partially seal the brew chamber. The tamper can be configured to move into the brew chamber to press against the coffee grounds in the brew chamber.
[0080] In some implementations, a surface of the tamper configured to press against the coffee grounds is configured to move into the brew chamber through an upper opening of the brew chamber. The ring can be disposed above the surface of the tamper.
[0081] In some implementations, the machine includes a controller configured to control the movement of the tamper into the brew chamber. The machine can include a force sensor configured to measure a force exerted by the tamper. Controlling the movement of the tamper can include continuously monitoring a pressure in the brew chamber using the measured force, and, in response to determining that the pressure in the brew chamber is within a predetermined range of the determined brewing pressure, halting the movement of the tamper.
[0082] The machine can further include a motor and a gear train operatively coupled to the tamper. The motor can be configured to drive movement of the gear train to cause the tamper to compress the ground coffee in the brew chamber. The machine can include a controller configured to control the motor.
[0083] In some embodiments, the machine includes an outlet and a channel arranged along a longitudinal axis of the tamper and fluidically coupled to the outlet. Movement of the tamper out of the brew chamber can be configured to generate negative pressure in the brew chamber such that brewed beverage contained in the brew chamber is drawn into the channel and transmitted out of the outlet.
[0084] The machine can further include the water source and a housing that houses the brew chamber, the tamper, and the ring. The water source can be configured to be removably coupled to the housing.
[0085] In some implementations, the machine includes a grinder configured to grind coffee beans and thereby produce the ground coffee. The brew chamber can be configured to receive the ground coffee from the grinder.
[0086] In some implementations, the machine includes a chute configured to receive the ground coffee from a user. The brew chamber can be configured to receive the ground coffee from the chute.
[0087] In some implementations, the machine includes a grinder configured to grind coffee beans, a chute configured to receive coffee grounds from a user, and a user interface configured to receive an input from a user. The brew chamber can be configured to receive the ground coffee from one of the grinder and the chute based on the input.
[0088] In another aspect, a machine for brewing a beverage includes a brew chamber configured to contain ground coffee and configured to be fluidically coupled to a water source and containing a recess formed on an outer surface thereof, a tamper disposed within a housing and configured to advance toward the brew chamber to compress the ground coffee in the brew chamber, and a clamp coupled to the housing and configured to move between a first position in which the clamp engages the recess to thereby constrain the tamper relative to the brew chamber and a second position in which the clamp disengages the recess. In some implementations, movement of the clamp can be controlled by movement of the tamper. In some implementations, movement of the clamp occurs in response to movement of the tamper.
[0089] The clamp can be configured to dynamically move into engagement with the recess and to dynamically disengage from the recess. In some embodiments, advancement of the tamper toward the brew chamber can be configured to cause the dynamic movement of the clamp, and retraction of the tamper away from the brew chamber can be configured to cause the dynamic disengagement of the clamp.
[0090] In some implementations, the clamp can be pivotally connected to the tamper.
[0091] The tamper can be configured to advance downwardly through an upper opening of the brew chamber. The clamp can extend downwardly.
[0092] In some embodiments, the clamp includes a pair of clamps, and the recess includes a pair of recesses.
[0093] The machine can further include an outlet and a channel arranged along a longitudinal axis of the tamper and fluidically coupled to the outlet. Movement of the tamper out of the brew chamber can be configured to generate negative pressure in the brew chamber such that brewed beverage contained in the brew chamber is drawn into the channel and transmitted out of the outlet.
[0094] The machine can include the water source and a housing that houses the brew chamber, the tamper, and the clamp. The water source can be configured to be removably coupled to the housing.
[0095] In some embodiments, the machine includes a grinder configured to grind coffee beans and thereby produce the ground coffee. The brew chamber can be configured to receive the ground coffee from the grinder.
[0096] In some embodiments, the machine includes a chute configured to receive the ground coffee from a user. The brew chamber can be configured to receive the ground coffee from the chute.
[0097] In some implementations, the machine includes a grinder configured to grind coffee beans, a chute configured to receive coffee grounds from a user, and a user interface configured to receive an input from a user. The brew chamber can be configured to receive the ground coffee from one of the grinder and the chute based on the input.
[0098] In another aspect, a machine for brewing a beverage includes a grinder configured to grind coffee beans and thereby produce coffee grounds, a brew chamber configured to contain the coffee grounds, a chute disposed between the grinder and the brew chamber, the chute configured to deliver the coffee grounds to the brew chamber, a sieve disposed at an outlet of the chute, and an auger disposed within the chute and configured to agitate coffee grounds passing through the chute and to push the coffee grounds through the sieve.
[0099] The machine can further include an outlet. Brewed beverage contained in the brew chamber can be configured to be dispensed out of the outlet to a drinking container. The brew chamber can be configured to receive water from a water source.
[0100] In another aspect, a machine for brewing a beverage includes a brew chamber configured to contain ground coffee and configured to be fluidically coupled to a water source and a tamper configured to compress the ground coffee in the brew chamber to force water received by the brew chamber from the water source through the ground coffee. The brew chamber can be movable between a first position, in which the brew chamber is not aligned with the tamper and is arranged to receive the ground coffee, and a second position, in which the brew chamber is aligned with the tamper and is separated from the tamper by a first separation distance. The brew chamber can be further movable between the second position and a third position, in which the brew chamber is aligned with the tamper and is separated from the tamper by a second separation distance that is less than the first separation distance.
[0101] In some implementations, the machine can include a plunger including a shaft and a disk disposed on an end of the shaft. The disk can be configured to be arranged in an interior region of the brew chamber and cover a bottom surface of the brew chamber. The shaft can be configured to extend out of the brew chamber through a through-hole in the bottom surface of the brew chamber. When the brew chamber moves from the third position to the second position, the plunger can be configured to remain in a fixed position such that a third separation distance between the bottom surface of the brew chamber and the disk increases and a fourth separation distance between the opening of the brew chamber and the disk decreases until the disk is disposed in the opening with the brew chamber in the second position. When the brew chamber moves from the second position to the first position, the plunger can be configured to move with the brew chamber such that the disk remains disposed in the opening.
[0102] In some embodiments, the machine includes a scraper adjacent to and above the opening of the brew chamber when the brew chamber is in the first position. When the brew chamber moves from the second position to the first position, the scraper can be configured to project into the opening of the brew chamber and slide across an upper surface of the disk.
[0103] In some embodiments, a water inlet in the bottom surface of the brew chamber is configured to receive water from the water source. A plurality of holes in the disk can be configured to allow water from the water inlet to pass through the disk and into the interior region of the brew chamber while containing ground coffee in the interior region of the brew chamber.
[0104] The machine can include a motor configured to drive the movement of the brew chamber.
[0105] In some embodiments, the machine includes a grinder configured to grind coffee beans and thereby produce the ground coffee. The brew chamber can be configured to receive the ground coffee from the grinder.
[0106] In some embodiments, the machine includes a chute configured to receive the ground coffee from a user. The brew chamber can be configured to receive the ground coffee from the chute.
[0107] In some implementations, the machine includes a grinder configured to grind coffee beans, a chute configured to receive coffee grounds from a user, and a user interface configured to receive an input from a user. The brew chamber can be configured to receive the ground coffee from one of the grinder and the chute based on the input.
[0108] In another aspect, a machine for brewing a beverage includes a brew chamber configured to receive ground coffee and to receive water, a tamper configured to move into the brew chamber to press against the coffee grounds in the brew chamber, and a controller configured to control the movement of the tamper into the brew chamber based on a type of beverage being brewed in the brew chamber.
[0109] The machine can include a gear including a threaded bore. The tamper can include an arm with a threaded external surface that is arranged in the threaded bore of the gear such that the gear rotating relative to the arm is configured to cause the tamper to move linearly along a longitudinal axis of the tamper into the brew chamber.
[0110] In some implementations, the tamper is configured to move linearly along the longitudinal axis of the tamper out of the brew chamber. The gear rotating in a first direction can be configured to cause the tamper to move toward the brew chamber and the gear rotating in a second direction can be configured to cause the tamper to move away from the brew chamber.
[0111] The controller can be configured to receive information indicating the type of beverage to be brewed in the brew chamber, determine a brewing pressure based on the received information, and control the movement of the tamper to generate the determined brewing pressure.
[0112] In some implementations, the machine can include a force sensor configured to measure a force exerted by the tamper. Controlling the movement of the tamper can include continuously monitoring a pressure in the brew chamber using the measured force, and, in response to determining that the pressure in the brew chamber is within a predetermined range of the determined brewing pressure, halting the movement of the tamper.
[0113] The machine can include a user interface configured to receive an input from a user indicating the type of beverage to be brewed. The machine can further include an outlet configured to dispense the brewed beverage, and a channel arranged along a longitudinal axis of the tamper and fluidically coupled to the outlet. Movement of the tamper out of the brew chamber can be configured to generate negative pressure in the brew chamber such that the beverage contained in the brew chamber is drawn into the channel and transmitted out of the outlet.
[0114] In another aspect, a machine for brewing a beverage includes a housing in which a beverage is configured to be brewed in a brew chamber using ground coffee and water, an outlet through which the brewed beverage is configured to be dispensed to a drinking container, a waste container removably coupled to the housing, wherein the coffee grounds are configured to be ejected to the waste container from the brew chamber, and an excess fluid container removably coupled to the housing and configured to collect in a collection region excess fluid exiting the outlet.
[0115] A plate can be removably coupled to the excess fluid container. A plurality of through-slots can be formed in the plate to allow the excess fluid to pass therethrough into the excess fluid container. In some embodiments, the excess fluid container and the plate are configured to be removed as a unit from the housing. In some embodiments, the excess fluid container, the plate, and the waste container are configured to be removed as a unit from the housing.
[0116] The excess fluid container can be configured to seat the drinking container thereon underneath the outlet.
[0117] The excess fluid container can include an overflow region in fluid communication with the collection region and configured to receive the excess fluid if the collection region becomes full. The machine can include a sensor configured to detect when the excess fluid in the collection region and the overflow region exceeds a threshold amount. The machine can include a user interface and a controller configured to notify a user, via the user interface, if the sensor detects that the excess fluid in the collection region and the overflow region exceed the threshold amount. A removable lid can cover the overflow region. In some embodiments, the excess fluid container and the waste container are configured to be removed as a unit from the housing.
[0118] In another aspect, a machine for brewing a beverage includes a hopper including a container portion configured to contain coffee beans as a supply for a grinder, an opening in the container portion, a protrusion in an interior of the container portion and extending above the opening, an electro-mechanical rotor arranged in the opening below the protrusion, and a funnel arranged on an exterior of container portion beneath the opening, having a through-hole through which the electro-mechanical rotor extends, and having a spout arranged under the protrusion and through which the coffee beans are configured to exit the hopper. The electro-mechanical rotor can be configured to move between a stationary configuration and a rotating configuration. In the stationary configuration, the electro-mechanical rotor can be configured to prevent the coffee beans contained in the container portion from entering the spout. In the rotating configuration, the electro-mechanical rotor can be configured to allow the coffee beans contained in the container portion to enter the spout.
[0119] The electro-mechanical rotor can include a central protrusion that is surrounded by plurality of circumferential spokes. In the rotating configuration, the plurality of circumferential spokes can be configured to cause the coffee beans contained in the container portion to move beneath the protrusion and into the spout. The central protrusion can extend through the through-hole of the funnel.
[0120] In some implementations, the container portion is refillable. The hopper can include a lid selectively covering the container portion.
[0121] In some implementations, the hopper includes a grating above the opening and the protrusion.
[0122] In some implementations, the protrusion is concave.
[0123] The machine can include a housing in which a beverage is configured to be brewed in a brew chamber using water and ground coffee beans. The hopper can be configured to be removably coupled to the housing. The machine can include a motor housed by the housing and, with the hopper removably coupled to the housing, configured to drive rotation of the electro-mechanical rotor.
[0124] The machine can include the grinder. The grinder can be housed by the housing.
[0125] In another aspect, a machine for brewing a beverage includes a housing in which a beverage is configured to be brewed in a brew chamber using water and ground coffee and a hopper configured to store coffee beans and configured to be removably coupled to the housing. In some implementations, the housing can have a bottom, a top, and a side extending between the bottom and the top, and the hopper can be configured to couple to the top of the housing. In some implementations, the housing has a bottom, a top, and a side extending between the bottom and the top, and the hopper is configured to couple to the side of the housing.
[0126] The hopper can include a rotor configured to be driven by the motor with the hopper removably coupled to the housing to cause the coffee beans to exit the hopper.
[0127] A hopper identification device can be attached to the hopper. A controller can be configured to receive information regarding the coffee beans from the hopper identification device. At least one additional hopper can each configured to be removably coupled to the housing.
[0128] In some implementations, the housing can be configured to be removably coupled with only one of the hopper and the at least additional hopper at a time. A first hopper identification device can be attached to the hopper and an additional hopper identification device can be attached to each of the at least one additional hopper. A controller can be configured to receive information regarding the coffee beans from the hopper identification device of the one of the one of the hopper and the at least additional hopper removably coupled to the housing.
[0129] In some implementations, the housing can be configured to be removably coupled simultaneously with the hopper and the at least additional hopper. A first hopper identification device can be attached to the hopper. An additional hopper identification device can be attached to each of the at least one additional hopper. A controller can be configured to receive information regarding the coffee beans from the hopper identification device of each of the one of the hopper and the at least additional hopper removably coupled to the housing.
[0130] The machine can include a grinder configured to receive the coffee beans from the hopper and to supply the ground coffee beans to the brew chamber.
[0131] In another aspect, a machine for brewing a beverage includes a hopper including a container portion configured to contain coffee beans as a supply for a grinder, an opening in the container portion, and an electro-mechanical rotor arranged in the opening below the protrusion, the electro-mechanical rotor including a plurality of circumferential spokes. The electro-mechanical rotor can be configured to move between a stationary configuration and a rotating configuration. In the stationary configuration, the electro-mechanical rotor can be configured to prevent the coffee beans contained in the container portion from passing through the opening. In the rotating configuration, the electro-mechanical rotor can be configured to allow the coffee beans contained in the container portion to pass through the opening and out of the hopper. An amount of the coffee beans allowed to pass through the opening while the electro-mechanical rotor is in the rotating configuration can be within a threshold amount of a predetermined amount of the coffee beans. The threshold amount can be less than or equal to 0.5 g or another amount.
[0132] The electro-mechanical rotor can include a central hub including a plurality of circumferential slots and a ring including the plurality of circumferential spokes. The central hub can be disposed atop the ring such that each of the plurality of circumferential spokes extend through a slot of the plurality of circumferential slots. The plurality of circumferential spokes can be formed from a flexible material.
[0133] In another aspect, a machine for brewing a beverage includes a housing in which a beverage is configured to be brewed in a brew chamber using water and ground coffee, a hopper, and a weight sensor configured to measure a total weight of the hopper and any coffee beans contained in the hopper. The weight sensor can be configured to be the sole bearer of the total weight of the hopper and any coffee beans contained in the hopper.
[0134] In some implementations, the weight sensor is a load cell.
[0135] The machine can include a controller housed by the housing and configured to be communicatively coupled with the weight sensor. The controller can be configured to determine if the measured total weight is below a predetermined threshold weight. The machine can include a user interface. The controller can be configured to provide a notification via the user interface if the measured total weight is determined to fall below the predetermined threshold weight.
[0136] In some implementations, the machine includes a controller housed by the housing and configured to be communicatively coupled with the weight sensor. The controller can be configured to monitor the measured total weight during dispensing of coffee beans from the hopper and to stop the dispensing in response to the measured total weight having changed by an amount corresponding to a required amount of coffee beans for the beverage.
[0137] In some implementations, the machine includes a user interface. The beverage can be configured to be selected by a user via the user interface.
[0138] In some embodiments, the hopper is configured to be removably coupled to the housing.
[0139] In another aspect, a machine for brewing a beverage includes a housing in which a beverage is configured to be brewed in a brew chamber using water and ground coffee, a grinder, a plurality of hoppers each configured to supply coffee beans to the grinder, and a weight sensor configured to measure a total weight of the plurality of hoppers and any coffee beans contained in the plurality of hoppers. The weight sensor can be configured to be the sole bearer of the total weight of the plurality of hoppers and any coffee beans contained in the plurality of hoppers.
[0140] In some embodiments, the weight sensor is a load cell.
[0141] The machine can include a controller housed by the housing and configured to be communicatively coupled with the weight sensor. The controller can be configured to determine if the measured total weight is below a predetermined threshold weight. The machine can include a user interface. The controller can be configured to provide a notification via the user interface if the measured total weight is determined to fall below the predetermined threshold weight.
[0142] In some implementations, the machine includes a controller housed by the housing and configured to be communicatively coupled with the weight sensor. The controller can be configured to monitor the measured total weight during supplying of coffee beans to the grinder and to stop the supplying in response to the measured total weight having changed by an amount corresponding to a required amount of coffee beans for the beverage.
[0143] In some implementations, the machine includes a user interface. The beverage can be configured to be selected by a user via the user interface.
[0144] In some implementations, each of the plurality of hoppers is configured to be removably coupled to the housing.
[0145] In another aspect, a machine for brewing a beverage includes a hopper, a grinder configured to grind coffee beans received from the hopper, a chute configured to configured to receive ground coffee from a user, and a brew chamber configured to receive either ground coffee from the grinder or from the chute for brewing a selected beverage. The grinder can include a first burr and a second burr defining a space therebetween in which the coffee beans to be ground are configured to be located. Adjusting a size of the space can be configured to adjust coarseness of the grind.
[0146] In some implementations, the beverage machine further includes a controller. The beverage machine can include an encoder operatively coupled to the controller and configured to transmit a signal to the controller indicating a current grind size setting of the grinder.
[0147] In some implementations, the beverage machine further includes a controller. The beverage machine can include a gear train operatively coupled to the grinder and a motor configured to drive movement of the gear train to adjust the size of the space.
[0148] In some implementations, the beverage machine further includes a user interface configured to receive a user input selecting the beverage.
[0149] In another aspect, a machine for brewing a beverage includes a grinder configured to grind coffee beans and configured to move between a plurality of grind size settings, a motor mechanically coupled to the grinder and configured to move the grinder between the plurality of grind size settings, a controller operatively coupled to the motor and configured to determine an angular displacement associated with a predetermined grind size value and rotate the motor by the angular displacement associated with the predetermined grind size value to move the grinder to a grind size setting of the plurality of grind size settings that corresponds to the predetermined grind size value.
[0150] The machine can include an encoder configured to detect an angular displacement of the motor and generate an encoder value representing the detected angular displacement. Determining the angular displacement associated with the predetermined grind size value can include determining a range of encoder values corresponding to the predetermined grind size value.
[0151] In another aspect, a machine for brewing a beverage includes a hopper configured to store coffee beans, the hopper including an outlet, a grinder arranged beneath the outlet of the hopper and configured to grind coffee beans received from the hopper, and a seal disposed on an upper portion of the grinder and extending at least partially into the outlet. In some embodiments, the seal includes a plurality of circumferential bristles that extend at least partially into the outlet. The bristles can include conductive fibers. The bristles can include carbon fibers. In some embodiments, the seal can be a roller seal.
[0152] In another aspect, a brew mechanism for an automatic extracting and brewing-type brewer for a large-dose coffee machine is provided. A tamping assembly can be provided and performs reciprocating rotation. A brewing chamber plunger reciprocating up and down can be provided in a brewing chamber inside a main body of the tamping assembly when a top chamber opening of the brewing chamber of the tamping assembly is rotated to a powder-receiving port on one side of a top portion of the housing, coffee powder falls into the brewing chamber of the tamping assembly. When the top chamber opening of the brewing chamber of the tamping assembly is rotated to a hydraulic assembly provided obliquely on one other side of the top portion of the housing, coffee powder inside the brewing chamber of the tamping assembly can be compressed into a coffee ground puck inside the brewing chamber by being pushed by a hydraulic assembly. During a process of the tamping assembly resetting to the side of the powder receiving port, the hydraulic assembly can leave the brewing chamber of the tamping assembly and be reset inside the brewing chamber by a plunger spring. In some implementations, the brewing chamber of the tamping assembly is a brewing chamber capable of being loaded with 39.0g of coffee powder, the brewing chamber with an inside diameter of 52.0 mm, a free height of 62.0 mm, a minimum height of 25.0 mm after compression, and a maximum height of 46.0 mm after compression.
[0153] In some aspects, a machine for brewing a beverage can include any combination of components or features described herein.
[0154] Methods of using a machine for brewing a beverage are also described.
[0155] In one aspect, a method for brewing a beverage includes delivering ground coffee to an interior region of a brew chamber, supplying water to the ground coffee through a plunger to brew a beverage in the brew chamber, dispensing the beverage from the brew chamber, and, after the dispensing of the beverage from the brew chamber, moving the plunger within the brew backet to eject the ground coffee from the brew chamber.
[0156] The brew chamber can include an upper opening through which the ground coffee is delivered into the interior region of the brew chamber. The plunger can move upwardly in the brew chamber to eject the ground coffee from the brew chamber. A plurality of holes can be formed in an upper surface of the plunger through which the water passes to enter the interior region of the brew chamber. A frame can be arranged above the upper opening of the brew chamber scrapes across an upper surface of the plunger to eject the ground coffee from the brew chamber.
[0157] A first channel can be beneath and parallel to a bottom surface of the brew chamber. A second channel can extend from an interior region of the brew chamber, through the bottom surface of the brew chamber, and into the first channel. The water can be supplied to the brew chamber by flowing in the first and second channels. The water can flow from a water source to the first channel.
[0158] The method can further include grinding, with a grinder, coffee beans and thereby producing the ground coffee. The brew chamber can receive the ground coffee from the grinder.
[0159] In some embodiments, the brew chamber receives the ground coffee from a chute into which a user manually delivers the ground coffee.
[0160] The method can include receiving, with a user interface, an input from a user. The brew chamber can receive the ground coffee from one of a grinder and a chute based on the input.
[0161] In some embodiments, the coffee grounds are ejected to a waste container. The waste container can be removably coupled to a housing that houses the brew chamber and the plunger.
[0162] In another aspect, a method for brewing a beverage is provided that includes brewing the beverage using any of the machines described herein. The method can have any number of variations.
[0163] The details of one or more variations of the subject matter described herein are set forth in the accompanying drawings and the description below. Other features and advantages of the subject matter described herein will be apparent from the description, the drawings, and the claims. BRIEF DESCRIPTION OF THE FIGURES
[0164] The disclosure should be read in conjunction with the following figures.
[0165] FIG. 1A is a block diagram of one implementation of a beverage machine;
[0166] FIG. 1B is a block diagram of another implementation of a beverage machine;
[0167] FIG. 2 is a perspective view of one implementation of beverage machine;
[0168] FIG. 3A is a top-down perspective view of a base of the beverage machine shown in FIG. 2;
[0169] FIG. 3B is a side perspective view of the beverage machine base shown in FIG. 3A;
[0170] FIG. 3C is a top-down perspective view of a fixed portion of the beverage machine base shown in FIG. 3A;
[0171] FIG. 3D is a top-down perspective view of a removable waste collection tray of the beverage machine base shown in FIG. 3A;
[0172] FIG. 4A is a top-down perspective view of a hopper of the beverage machine shown in FIG. 2;
[0173] FIG. 4B is a bottom-up perspective view of the hopper shown in FIG. 4A;
[0174] FIG. 4C is a bottom view of a container portion of the hopper shown in FIG. 4A;
[0175] FIG. 4D is a bottom view of an arrangement of a rotor in an opening the container portion shown in FIG. 4C;
[0176] FIG. 4E is a perspective view the rotor shown in FIG. 4D;
[0177] FIG. 4F is a bottom-up perspective view of an arrangement of a funnel beneath the container portion shown in FIG. 4C;
[0178] FIG. 4G is a perspective view of the funnel shown in FIG. 4F;
[0179] FIG. 4H is a top view of a load cell for the hopper shown in FIG. 4A;
[0180] FIG. 4I is a bottom-up perspective view of the coupling between a motor for driving the hopper rotor shown in FIGS. 4D-4E and the hopper load cell shown in FIG. 4A;
[0181] FIG. 4J is a perspective view of the motor shown in FIG. 4I;
[0182] FIG. 5A is a first side perspective view of a water reservoir of the beverage machine shown in FIG. 2;
[0183] FIG. 5B is a second side perspective view of the water reservoir shown in FIG. 5A;
[0184] FIG. 5C is a bottom view of the water reservoir shown in FIG. 5A;
[0185] FIG. 5D is a top view of an interior region of the water reservoir shown in FIG. 5A;
[0186] FIG. 5E is a perspective view of an outlet valve arranged in the water reservoir shown in FIG. 5A;
[0187] FIG. 6A is a side perspective view of a milk reservoir of the beverage machine shown in FIG. 2;
[0188] FIG. 6B is a front view of the milk reservoir shown in FIG. 6A;
[0189] FIG. 6C is internal components of the milk reservoir shown in FIG. 6A;
[0190] FIG. 7A is a side view of a grinder and a bypass chute of the beverage machine shown in FIG. 2;
[0191] FIG. 7B is a cross-sectional side view of the grinder and the bypass chute shown in FIG. 7A;
[0192] FIG. 7C is a cross-sectional view of a chamber of the grinder shown in FIG. 7A;
[0193] FIG. 7D is another cross-sectional view of the grinder shown in FIG. 7A;
[0194] FIG. 7E is a perspective view carriage of the grinder shown in FIG. 7A;
[0195] FIG. 7F is a perspective view of a gear for adjusting a position of the carriage shown in FIG. 7E;
[0196] FIG. 8A is a side perspective view of a brew chamber of the beverage machine shown in FIG. 2;
[0197] FIG. 8B is a top view of the brew chamber shown in FIG. 8A;
[0198] FIG. 8C is a perspective view of a plunger that is contained in the brew chamber shown in FIG. 8A;
[0199] FIG. 8D is a top view of the brew basket shown in FIG. 8A without the plunger shown in FIG. 8C;
[0200] FIG. 8E is a cross-sectional side view of the brew basket shown in FIG. 8A;
[0201] FIG. 8F is a side view of the brew basket shown in FIG. 8A;
[0202] FIG. 8G is an inner side of a one of a pair of walls between which the brew basket shown in FIG. 8A is arranged;
[0203] FIG. 8H is an inner side of another of the pair of walls between which the brew basket shown in FIG. 8A is arranged;
[0204] FIG. 9A is a side view of a tamper of the beverage machine shown in FIG. 2;
[0205] FIG. 9B is a gear train for moving the tamper shown in FIG. 9A;
[0206] FIG. 9C is a bottom view of the tamper shown in FIG. 9A;
[0207] FIG. 9D is a top view of the tamper shown in FIG. 9A;
[0208] FIG. 10A is the brew basket of FIG. 8A in a first position;
[0209] FIG. 10B is the brew basket of FIG. 8A in a second position;
[0210] FIG. 10C is the tamper of FIG. 9A extending into the brew basket of FIG. 8A; .
[0211] FIG. 10D is the tamper of FIG. 9A retracting from the brew basket of FIG. 8A;
[0212] FIG. 10E is the plunger of the brew basket of FIG. 8A pushing through the brew basket;
[0213] FIG. 10F is the brew basket of FIG. 8A returning to the first position;
[0214] FIG. 11A is a perspective view of another implementation of a beverage machine;
[0215] FIG. 11B is another perspective view of the beverage machine shown in FIG. 11A;
[0216] FIG. 11C is another perspective view of the beverage machine shown in FIG. 11A with the water reservoir removed;
[0217] FIG. 11D is a magnified front view of the beverage machine shown in FIG. 11A with the milk jug for use with the beverage machine removed;
[0218] FIG. 12A is a cross-sectional perspective view of a milk jug for use with the beverage machine shown in FIG. 11A;
[0219] FIG. 12B is a cross-sectional side view of a milk frothing platform of the beverage machine shown in FIG. 11A coupled to the milk jug shown in FIG. 12A;
[0220] FIG. 13 is a cross-sectional view of a steam wand of the beverage machine shown in FIG. 11A;
[0221] FIG. 14A is a cross-sectional side view of the hopper, the grinder, and the bypass chute of the beverage machine shown in FIG. 11A;
[0222] FIG. 14B is another cross-sectional side view of the hopper and the grinder of the beverage machine shown in FIG. 11A;
[0223] FIG. 15A is a cross-sectional front perspective view of the hopper of the beverage machine shown in FIG. 11A;
[0224] FIG. 15B is a cross-sectional side perspective view of the hopper of the beverage machine shown in FIG. 11A;
[0225] FIG. 15C is a bottom-up view of the hopper of the beverage machine shown in FIG. 11A;
[0226] FIG. 15D is a perspective view of a knob for twisting a locking mechanism for the hopper of the beverage machine shown in FIG. 11A;
[0227] FIG. 15E is a perspective view of a cam of the locking mechanism for the hopper of the beverage machine shown in FIG. 11A;
[0228] FIG. 15F is a perspective view of a central hub for a dispenser of the beverage machine of FIG. 11A;
[0229] FIG. 15G is a perspective view of the peripheral paddles of the dispenser of the beverage machine of FIG. 11A;
[0230] FIG. 16A is a perspective view of the grinder and bypass chute of the beverage machine shown in FIG. 11A;
[0231] FIG. 16B is a cross-sectional perspective view of the grinder and bypass chute of the beverage machine shown in FIG. 11A;
[0232] FIG. 16C is another cross-sectional perspective view of the grinder and bypass chute of the beverage machine shown in FIG. 11A;
[0233] FIG. 16D is a bottom-up view of the grinder and bypass chute of the beverage machine shown in FIG. 11A;
[0234] FIG. 16E is a perspective view of the outer burr carrier and bristle seal of the grinder of the beverage machine shown in FIG. 11A;
[0235] FIG. 17 is a cross-sectional perspective view of the outlet of the grinder and the bypass chute of the beverage machine shown in FIG. 11A;
[0236] FIG. 18 is a cross-sectional perspective view of the brew basket and the tamper of the beverage machine shown in FIG. 11A;
[0237] FIG. 19A is a cross-sectional perspective view of the brew basket of the beverage machine shown in FIG. 11A;
[0238] FIG. 19B is a magnified cross-sectional view of the interior bottom surface of the brew basket of the beverage machine shown in FIG. 11A;
[0239] FIG. 19C is a magnified cross-sectional perspective view of the plunger of the brew basket of the beverage machine shown in FIG. 11A;
[0240] FIG. 20A is a perspective view of the tamper of the beverage machine shown in FIG. 11A;
[0241] FIG. 20B is a cross-sectional perspective view of the tamper of the beverage machine shown in FIG. 11A;
[0242] FIG. 20C is a magnified cross-sectional side view of the tamper of the beverage machine shown in FIG. 11A;
[0243] FIG. 20D is a top-down view of the tamper of the beverage machine shown FIG. 11A with a top portion of the tamper housing removed;
[0244] FIG. 21 is a schematic of a beverage brewing cycle performed by one implementation of a beverage machine;
[0245] FIG. 22 is a cross-sectional perspective view of a hopper weighing device of one implementation of a beverage machine;
[0246] FIG. 23A is a partially exploded view of an implementation of a brewer without the first motor;
[0247] FIG 23B is a perspective view of the assembled state of the brewer in FIG. 23A;
[0248] FIG. 23C is a view of the internal structure of FIG. 23B, the dotted lines indicating a partial internal structure;
[0249] FIG. 23D is a cross-sectional view of FIG. 23B; and
[0250] FIG. 23E is a perspective structural view from an opposite side to FIG. 23B without the second motor and pinion gear.
[0251] FIG. 24 is a partially exploded structural schematic diagram of an embodiment of the present disclosure. The circled portions in FIG. 24 show an enlarged view of the other side of the steam joint and an enlarged view of the suction pipe connector.
[0252] FIG. 25 is a first schematic diagram of the three-dimensional structure of FIG. 24, in which the dashed lines represent partial structure inside the milk cartridge and the milk reservoir.
[0253] FIG. 26 is a second schematic diagram of the three-dimensional structure of FIG. 24, in which the dashed lines represent an upper cover of the milk cartridge and the part framed by the ellipse shows an exploded-view structure of the milk outlet pipe.
[0254] FIG. 27 is a structural schematic diagram of a bottom portion of a valve body shown in FIG. 24.
[0255] FIG. 28 is a top-view structural schematic diagram of an assembled state of the apparatus shown in FIG. 24, in which the dashed lines represent internal sectional structures. Section A is circled, and section views A-A, B-B, and C-C are provided.
[0256] FIG. 29 is an enlarged view of section A of the FIG. 28.
[0257] FIG. 30 is a structural schematic diagram illustrating a change in a flow diameter between a special-shaped orifice and a gas-liquid suction channel after a suction pipe connector is rotated in FIG. 29.
[0258] FIG. 31 is a structural schematic diagram of the A-Asectional structure of FIG. 28, in which section B is circled.
[0259] FIG. 32 is an enlarged view of section B of the FIG. 31.
[0260] FIG. 33 is a schematic diagram of the B-B sectional structure of FIG. 28, in which the circled part shows an enlarged structural schematic diagram of a bottom portion of an air intake knob.
[0261] FIG. 34 is a schematic diagram of the C-C sectional structure of FIG. 28, in which the circled part shows an enlarged structural schematic diagram of an air intake valve.
[0262] FIG. 35 is a first structural schematic diagram illustrating an operating principle of another movable orifice and stationary orifice according to the present disclosure.
[0263] FIG. 36 is a second structural schematic diagram illustrating an operating principle of another movable orifice and stationary orifice according to the present disclosure.
[0264] FIG. 37 is a partial exploded structural schematic diagram according to an embodiment of the present disclosure, in which a barrel rotating motor and a push rod motor are omitted.
[0265] FIG. 38 is an assembled three-dimensional structural schematic view of FIG. 37, in which dashed lines represent an external structure of the brewing head assembly.
[0266] FIG. 39 is a cross-sectional structural schematic view of FIG. 38.
[0267] FIG. 40 is a structural schematic diagram illustrating a tamping state of FIG. 38, in which the dashed lines represent part of the external structure of the brewing base assembly and the brewing head assembly.
[0268] FIG. 41 is a partial cross-sectional structural schematic diagram of FIG. 40, showing a cross-section taken along A-A.
[0269] FIG. 42 is a schematic diagram of the A-Across-sectional structure of FIG. 41, with partial sectioning. Part of the dashed lines represent the tamping state of the push head.
[0270] FIG. 43 is a partial cross-sectional structural schematic diagram of a first improved configuration of the present disclosure, in which a head sleeve assembly is added to the brewing head assembly.
[0271] FIG. 44 is a cross-sectional structural schematic diagram showing an operating state of a second improved configuration of the present disclosure.
[0272] FIG. 45 is a schematic diagram illustrating a structural relationship between internal transmission gears at a bottom portion and a cone blade adjustment disc, in which the dashed lines represent an external structure.
[0273] FIG. 46 is a schematic diagram of a three-dimensional structure of the bottom portion in FIG. 45.
[0274] FIG. 47 is a cross-sectional schematic view illustrating an operating state of the structure shown in FIG. 46.
[0275] FIG. 48 is a structural schematic diagram of a main body of a bean grinding assembly from FIG. 47 in a bean dispensing state.
[0276] FIG. 49 is a first schematic diagram illustrating an operating state of a weighing / gear position display and a control program display on a control panel according to the present disclosure.
[0277] FIG. 50 is a second schematic diagram illustrating an operating state of a weighing / gear position display and a control program display on a control panel according to the present disclosure.
[0278] Fig. 51 is a schematic exploded diagram of the structure of a part of an embodiment of the present disclosure, with the barrel rotating motor being omitted.
[0279] Fig. 52 is a schematic perspective diagram of an assembled structure of Fig. 51, the dotted line indicating an internal structure of the brew seat assembly.
[0280] Fig. 53 is a schematic diagram of the internal structure of the barrel body of the brew seat assembly of Fig. 52, with the first housing being omitted.
[0281] Fig. 54 is a schematic diagram of the structure of the bottom portion of the barrel body and the link rod of Fig. 53, with Part A being framed.
[0282] Fig. 55 is a schematic amplified view of the structure of Part A in Fig. 54.
[0283] Fig. 56 is a schematic diagram of the bottom structure of Fig. 54 in a state of use.DETAILED DESCRIPTION
[0284] Certain embodiments will now be described to provide an overall understanding of the principles of the structure, function, manufacture, and use of the devices, systems, and methods disclosed herein. One or more examples of these embodiments are illustrated in the accompanying drawings. Those skilled in the art will understand that the devices, systems, and methods specifically described herein and illustrated in the accompanying drawings are non-limiting embodiments and that the scope of the present invention is defined solely by the claims. The features illustrated or described in connection with one exemplary embodiment may be combined with the features of other embodiments. Such modifications and variations are intended to be included within the scope of the present invention.
[0285] Further, in the present disclosure, like-named components of the embodiments generally have similar features, and thus within a particular embodiment each feature of each like-named component is not necessarily fully elaborated upon. Additionally, to the extent that linear or circular dimensions are used in the description of the disclosed systems, devices, and methods, such dimensions are not intended to limit the types of shapes that can be used in conjunction with such systems, devices, and methods. A person skilled in the art will recognize that an equivalent to such linear and circular dimensions can easily be determined for any geometric shape.
[0286] Various illustrative systems, devices, and methods for beverage machines (e.g., coffee machines, espresso machines, etc. ) are provided.
[0287] In some aspects, a beverage machine includes a brew mechanism, e.g., a brew chamber or brew basket, configured to receive coffee grounds, e.g., from a grinder, and to thereafter pivot to face a tamper of the beverage machine. The tamper is configured to tamp the coffee grounds in the brew mechanism. Water is configured to be introduced, e.g., pumped, into the brew mechanism from a bottom of the brew mechanism, and the tamper is configured to move into the brew mechanism from a top of the brew mechanism to pressurize the brew chamber and force the water through the grounds. To ensure ideal extraction conditions in the brew mechanism, the machine, e.g., a controller of the machine, is configured to control a distance that the tamper travels into the brew mechanism based on a type of the beverage being brewed. As the tamper is retracted from the brew mechanism, the brewed beverage is configured to be dispensed from the machine via an outlet channel in the tamper. The controllability of tamper of such a machine may allow the machine to produce a myriad of high-quality beverages while maintaining the convenience of fully-automated brewing.
[0288] The systems, devices, and methods described herein are not limited to espresso machines. An espresso machine is one example of a device to which the systems, devices, and methods described herein apply. The systems, devices, and methods described herein also apply to other types of devices, such as a standalone grinder and a non-espresso coffee brewing device (e.g., a coffee machine) . In some implementations, an espresso machine is configured to also brew one or more types of non-espresso coffee beverages such as drip coffee drinks or hot chocolate. In other implementations, an espresso machine is not configured to brew non-espresso coffee beverages such as drip coffee drinks or hot chocolate. In some implementations, a beverage machine is configured to brew a beverage and is configured to dispense a drinkable liquid, e.g., water that has been heated for, e.g., brewing tea, and / or (hot or cold) milk for producing drinks such as lattes.
[0289] Various implementations of beverage machines are further described in, for example, U.S. Patent Application No. 18 / 651, 926 entitled “Suggesting Coffee Bean Grind Size For Beverage Machines” filed on May 1, 2024, U.S. Patent Application No. 18 / 651,936 entitled “Milk Frothing” filed on May 1, 2024, U.S. Patent Application No. 18 / 651,970 entitled “Preventing Coffee Bean Grinder Jamming” filed on May 1, 2024, U.S. Patent Application No. 18 / 652,309 entitled “Beverage Machine Filters And Portafilters” filed on May 1, 2024, U.S. Patent Application No. 18 / 652,415 entitled “Beverage Machine Portafilters” filed on May 1, 2024, U.S. Patent Application No. 18 / 652,514 entitled “Coffee Tamping” filed on May 1, 2024, U.S. Patent Application No. 18 / 652,049 entitled “Descaling Beverage Machines” filed on May 1, 2024, U.S. Patent Application No. 18 / 652,063 entitled “Preparation Of Beverage Machines For Cold Beverage Brewing” filed on May 1, 2024, and U.S. Patent Application No. 18 / 654,947 entitled “Queueing Beverage Machine Preparations” filed on May 3, 2024, which are hereby incorporated by reference in their entireties.
[0290] FIG. 1 shows one exemplary implementation of a beverage machine 100A. The beverage machine 100A is configured to brew and dispense a beverage 144. In this implementation, the beverage 144 can be a coffee-based drink, such as an espresso drink or a brewed coffee drink, or a non-coffee-based drink, such as hot chocolate. The beverage 144 can be hot or cold. The beverage machine 100A in this implementation is also configured to dispense water that has been heated for, e.g., brewing tea, as well as (hot or cold) milk for producing drinks such as lattes.
[0291] The beverage machine 100A is a fully automatic brewer configured to fine-tune the settings of several critical brewing components to optimize the brewing process for each drink that is brewed by the beverage machine 100A. By controlling components, such as a coffee bean hopper 102, a grinder 108, a brew mechanism (abrew basket 110 in this illustrated implementation) , and a tamper 120 as discussed further below, the beverage machine 100A is configured to automatically produce a wide variety of beverages without sacrificing beverage quality. In an exemplary implementation, the beverage machine 100A is configured to control dispensing of beans from the hopper 100A and / or control movement of the tamper 120 into and out of the brew basket 110 to facilitate the production of quality beverages.
[0292] The beverage machine 100A is configured to brew the beverage 144 automatically in response to a user command to provide the beverage 144. As shown in FIG. 1, the beverage machine 100A includes a controller 134 configured to control operations of various components of the beverage machine 100A to produce the beverage 144, and the beverage machine 100A includes a user interface 136 configured to receive beverage order information from a user. The controller 134 can be any suitable device or combination of devices that includes a data processor (e.g., a central processing unit (CPU, etc. ) and a memory (e.g., random access memory (RAM) , etc. ) . For example, the controller 134 can be a microcontroller. The memory is configured to store instructions that, when executed by the controller 134, cause the controller 134 to perform various operations, as described herein.
[0293] The user interface 136 can be any suitable device or combination of devices for inputting information from a user to the machine 100A, e.g., to the controller 134, and outputting information to the user. In an exemplary implementation, the user interface 136 includes one or more user controls (e.g., buttons, dials, switches, touch panels, or combinations thereof) and one or more visual display screens (e.g., a liquid crystal display (LCD) , etc. ) . The user interface 136 is configured to provide beverage and brewing information to the user and to receive a beverage selection and other beverage order information from the user, including the user command to provide the beverage 144. The controller 134 is configured to operate components of the beverage machine 100A to produce the beverage 144 according to the beverage order information.
[0294] In an exemplary implementation, the user interface 136 is configured to display a beverage menu and allow the user to input a selection of their preferred beverage. When the user inputs a beverage selection, the user interface 136 is configured to display information about the selected beverage. The displayed information is based on, e.g., a recipe for the selected beverage that is stored in the memory of the machine 100A, and includes beverage properties such as, for example, grind size (e.g., a numerical value representing recommended grind size) , grind level (e.g., a visual indication of a recommended grind level on a scale from fine to course) , espresso type (e.g., single, double, Americano, or quad) , beverage size (single, double, extra-large (XL) ) , brew type (e.g., classic, rich, over ice, cold brew, etc. ) , beverage volume (e.g., 8oz, 10oz, 12oz, 16oz, etc. ) , beverage temperature (e.g., 175 °F, 250 °F, 210 °F, etc. ) , beverage type (e.g., latte, cappuccino, flat white, cortado, etc. ) , or combinations thereof. Some types of beverage properties may not be possible to show because they are inapplicable to a particular beverage machine 100A, such as not showing espresso type if the beverage machine 100A cannot brew espresso.
[0295] The user interface 136 is configured to allow the user to customize one or more properties of their selected beverage. In an exemplary implementation, the user interface 136 is configured to display one or more default beverage properties as well as one or more alternative options for each displayed property. The user interface 136 is configured to allow the user to provide input to user interface 136 to switch from a default property to an alternative option.
[0296] One example of a beverage property that the user interface 136 can be configured to allow the user to customize is a beverage volume, e.g., by allowing the user to select one of a plurality of predetermined beverage volumes. The user interface 136 is configured to present the beverage volume options to the user as, e.g., a list of numerical beverage volume values or a list of beverage volume descriptions (e.g., “Small, ” “Medium, ” “Large, ” etc. ) .
[0297] Another example of a beverage property that the user interface 136 can be configured to allow the user to customize is a coffee grind size. The user interface 136 is configured to allow the user to select one of a plurality of predetermined grind sizes. The user interface 136 is configured to present the grind size options to the user as, e.g., a list of numerical grind size values or on a scale from “Fine” to “Coarse. ” In some implementations, the machine 100A is configured to recommend a grind size to the user, as discussed further below.
[0298] Another example of a beverage property that user interface 136 can be configured to allow the user to customize is a grind-to-water ratio, e.g., by allowing a user to select one of a plurality of predetermined grind-to-water ratios (e.g., to select one of 1.5: 1, 2: 1, 2.5: 1, 3: 1, 3.5: 1, and / or other ratios) . Instead of or in addition to allowing a user to select a predetermined grind-to-water ratio, the user interface 136 can be configured to allow a user to manually input a user-chosen grind-to-water ratio.
[0299] Another example of a beverage property that user interface 136 can be configured to allow the user to customize is a milk-to-coffee ratio, e.g., by allowing the user to select one of a plurality of predetermined milk-to-coffee ratios. The user interface 136 is configured to present the milk-to-coffee ratio options to the user as, e.g., a list of numerical milk-to-coffee ratio values (e.g., 1: 1, 0.5: 1, 0.25: 1, and / or other ratios) and / or or as a list of milk-to-coffee ratio descriptions (e.g., “No Milk” , “Light Milk” , “Heavy Milk” , etc. ) . Instead of or in addition to allowing a user to select a predetermined grind-to-water ratio, the user interface 136 can be configured to allow a user to manually input a user-chosen milk-to-coffee ratio.
[0300] In an exemplary implementation, the user interface 136 is configured to provide the user with information and / or to receive information from the user related to maintenance of the beverage machine 100A. For example, the user interface 136 can be configured to indicate when one or more components of the beverage machine 100A require cleaning, refilling, or replacement.
[0301] For another example, the user interface 136 can be configured to receive user input related to the maintenance of the beverage machine 100A, such as a hard water test result to enable the machine 10 to monitor mineral buildup in various components of the beverage machine 100A. Mineral deposits from water can build up in beverage machines, such as the beverage machine 100A and the various beverage machines described herein, due to water flowing through various components used in brewing. A user can perform a hard water test using any suitable hard water testing technique and input the hard water test result to the beverage machine 100A using the user interface 136. Using the hard water test result information input by the user, the machine 100A, e.g., the controller 134, in an exemplary implementation is configured to determine a descaling schedule for the beverage machine 100A. The user interface 136 is configured to provide an instruction the user to descale the beverage machine 100A according to the descaling schedule. Various implementations of descaling beverage machines are described further, for example, in U.S. Patent Application No. 18 / 652,049 entitled “Descaling Beverage Machines” filed on May 1, 2024, the contents of which is hereby incorporated by reference in its entirety.
[0302] The user interface 136 is configured to receive user inputs for starting, pausing, or cancelling the brewing process. For example, the user interface 136 can include a “Start” button that, when pressed by the user, causes the controller 134 to initiate the brewing process, a “Cancel” button that, when pressed by the user, causes the controller 134 to abort the brewing process, and a “Pause” button that, when pressed by the user, causes the controller 134 to pause the brewing process.
[0303] As shown in FIG. 1, the beverage machine 100A also includes a hopper 102; a dispenser 106 configured to dispense coffee beans from the hopper 102; a grinder 108; a water supply system including a water reservoir 114, a water pumping system 116, and a water heating system 118; a brew basket 110; a tamper 120; a water / brewed beverage outlet 124; and a milk supply system including a milk reservoir 126, a milk pumping system 128, a milk heating system 130, and a milk outlet 132. As discussed herein, the beverage machine 100A may not include some components if not relevant to that beverage machine’s functionality, such as not including the milk pumping system 128, the milk heating system 130, or the milk outlet 132 if the beverage system 100A lacks the milk reservoir 126 or not including the tamper 120 if the beverage system 100A cannot brew espresso.
[0304] The hopper 102 is configured to contain coffee beans 138a. The coffee beans 138a are configured to be supplied to hopper 102 by a user. The hopper 102 is refillable to allow the user to refill the hopper 102 with a same type of coffee beans as previously used or with a new type of coffee beans. The hopper 102 can be a single hopper 102 usable with the machine 100A or can be a plurality of hoppers configured to be swappable and each configured to removably couple to the beverage machine 100A at a user’s selection. Providing a single hopper 102 may reduce cost of the beverage machine 100A and / or may be easier for a user to manage than multiple hoppers. Providing multiple hoppers may allow each of the hoppers to contain a different type of coffee beans to allow the user to more easily and quickly use the machine 100A with different types of coffee beans, e.g., by coupling a selected one of the hoppers to the machine 100A without having to empty any coffee beans of another type already in the hopper 102.
[0305] A hopper identification device 146 is attached to hopper 102. The hopper identification device 146 can be, e.g., a radio frequency identification (RFID) tag, a microswitch, or other suitable device configured to communicatively couple to controller 134 when the hopper 102 is attached to the beverage machine 100A and transmit to the controller 134 information about the coffee beans contained in the hopper 102. The controller 134 is configured to use the information provided by the hopper identification device 146 to control various components of the beverage machine 100A, as discussed further below. In implementations in which the hopper 102 includes a plurality of hoppers each configured to be selectively coupled to the machine 100A, each of the plurality of hoppers including hopper identification device is configured to facilitate user of the different hoppers with different types of beans.
[0306] The hopper 102 includes a weight sensor 104 configured to measure a weight of the hopper 102 and any coffee beans 138a contained in the hopper 102. The weight sensor 104 is configured to measure a weight indicative of only a weight of the hopper 102 and any coffee beans 138a contained in the hopper 102. A total weight of the hopper 102, including any coffee beans 138a contained in the hopper 102, is configured to be borne solely by the weight sensor 104. The weight measured by the weight sensor 104 will thus accurately reflect a weight of only the hopper 102 and any coffee beans 138a contained in the hopper 102. The hopper 102 includes the weight sensor 104 to facilitate the weight sensor’s bearing of the hopper’s and coffee beans’ weight with the hopper 102 coupled to a housing of the beverage machine 100A. Additionally, with the hopper 102 coupled to the machine 100A, no component of the machine 100A is configured to exert pressure or otherwise add any weight to the hopper 102 so the weight sensor 104 will measure only the weight of the hopper 102 and any coffee beans 138a contained in the hopper 102. In implementations in which the hopper 102 is configured to removably couple to a housing of the beverage machine 100A, the weight sensor 104 is configured to automatically bear the weight of the hopper 102 and any coffee beans 138a contained in the hopper 102 when a user couples to the hopper 102 to the machine 100A, so the user need not take any special action to facilitate accurate weight measurement by the weight sensor 104.
[0307] The weight sensor 104 is configured to be communicatively coupled to the controller 134 to transmit information regarding the measured weight to the controller 134. The controller 134 is configured to use the information provided by the weight sensor 104 regarding the measured weight to control various components of the beverage machine 100A, as discussed further herein.
[0308] The controller 134 is configured to tare the weight sensor 104 (e.g., prior to initiating dispensing the coffee beans 138a from the hopper 102) to ensure accuracy of the measured weight.
[0309] The controller 134 is configured to, based on the measured weight, determine when the weight of hopper 102 and any coffee beans 138a contained in the hopper 102 falls below a threshold weight value. In response to the controller 134 determining that the weight has fallen below the threshold weight value, the user interface 136 is configured to indicate to the user that a supply of the coffee beans 138a contained in hopper 102 is running low to help the user know when to replace the hopper 102 with another, fuller hopper or to refill the hopper 102. In other words, the weight of the hopper 102, including any coffee beans 138a contained in the hopper 102, has decreased to an amount indicative of a small amount or no amount of coffee beans 138a being in the hopper 102.
[0310] The dispenser 106 is arranged in an outlet of hopper 102 and is configured to controllably dispense the coffee beans 138a from the hopper 102. The dispenser 106 is, for example, an electro-mechanical rotor or a sliding door configured to open and close the outlet of hopper 102. The controller 134 is configured to control operation of the dispenser 106, e.g., control opening and closing of the outlet of the hopper 102, to selectively initiate and halt the dispensing of coffee beans from hopper 102. As discussed further below, the controller 134 controlling the opening and closing of the outlet of the hopper 102 may allow an appropriate amount of the coffee beans 138a to be provided to the grinder 108 for the particular beverage selected by the user and thus may allow for all of the coffee beans 138a to be ground by the grinder 108 and the grounds provided to the brew basket 110 without any excess beans 138a remaining in the grinder 108.
[0311] Based on the beverage order information received by the controller 134 from the user via user interface 136 and on the information about coffee beans 138a provided to the controller 134 by the hopper identification device 146, the controller 134 is configured to determine an amount of the coffee beans 138a required to brew the beverage 144 ordered by the user. The controller 134 is configured to operate the dispenser 106 to initiate the dispensing of the coffee beans 138a in accordance with the determined amount of coffee beans 138a. As the coffee beans 138a are being dispensed from the hopper 102 to the grinder 108 via the dispenser 106, the controller 134 is configured to use the measured weight information provided by the weight sensor 104 to monitor a change in the weight of the hopper 102 including any coffee beans 138a contained in the hopper 102. The controller 134 is configured to halt the dispensing of the coffee beans 138a, e.g., close the dispenser 106 to stop the coffee beans 138a from being provided from the hopper 102 to the grinder 108, in response to determining that the weight of the hopper 102, including any coffee beans 138a contained in the hopper 102, has changed by an amount corresponding to the required amount of coffee beans for the selected beverage. In other words, the weight of the hopper 102, including any coffee beans 138a contained in the hopper 102, has decreased by an amount corresponding to the required amount of coffee beans for the selected beverage, so the controller 134 prevents any more coffee beans 138a from being provided to the grinder 108 from the hopper 102.
[0312] The grinder 108 is arranged downstream of the dispenser 106 such that the coffee beans 138a released from the hopper 102 through the dispenser 106 are collected by the grinder 108 for grinding, e.g., using a pair of burrs or other grinding mechanism.
[0313] The grinder 108 has a plurality of grind size settings. The controller 134 is configured to determine a grind size setting for the grinder 108 based on the beverage order information received from the user via the user interface 136 and the information about the coffee beans 138a provided by the hopper identification device 146.
[0314] In some embodiments, the beverage machine 100A is configured to automatically use the grind size determined by the controller 134, which may help improve user experience by reducing a number of beverage options that a user inputs to the machine 100A and / or may help ensure a highest quality beverage.
[0315] In some embodiments, the beverage machine 100A is configured to allow a user to input a selected grind size, whether or not the controller 134 is configured to determine a grind size setting for the grinder 108. In such implementations, the controller 134 is configured to determine a recommended grind size for the beverage 144 based on the beverage order information received from the user via the user interface 136 and the information about coffee beans 138a provided by hopper identification device 146. Using the user interface 136, the controller 134 is configured to provide the recommended grind size to the user and prompt the user to input instructions to proceed with the recommended grind size or to proceed with a grind size different from the recommended grind size. The controller 134 is configured to use the grind size setting for the grinder 108 according to the instructions provided by the user.
[0316] In some embodiments, the dispenser 106 can be controlled based upon the determined grind size setting for the grinder 108. By correlating the operation of the dispenser 106 to the grind size setting, the beverage machine 100A can increase the volume of coffee beans dispensed into the grinder 108 while mitigating clogging of the grinder 108.
[0317] In some instances, a user of the beverage machine 100A may wish to prepare a beverage using coffee beans that are different than the coffee beans 138a contained in hopper 102 currently coupled to the machine 100A or may wish to manually grind their own coffee beans instead of the grinder 108 grinding the beans. The beverage machine 100A includes a bypass chute 112 that is configured to receive ground coffee 138b from the user. The user interface 138 is configured to receive an input from the user indicating that the ground coffee 138b is being provided via the bypass chute 112 for brewing of a beverage, in which case coffee beans 138a will not be dispensed from the hopper 102 and the grinder 108 will not be operated in the process of brewing the beverage. In some implementations, the bypass chute 112 is omitted, which may help ensure a highest quality beverage by using the machine’s grinder 108 to grind to a particular grind size.
[0318] The water reservoir 114 is configured to store water 140 therein. The water reservoir 114 is configured to be refilled with water 140 by a user. In some implementations, the water reservoir 114 is non-removably coupled to the beverage machine 100A, which can simplify manufacturing of the beverage machine 100A. A user can provide the water 140 to the non-removable water reservoir 114 by, e.g., pouring or otherwise providing the water 140 through an opening in the reservoir 114. In other implementations, the water reservoir 114 is removably coupled to the beverage machine 100A, allowing users to detach the water reservoir 114 from the beverage machine 100A and carry water reservoir 114 to a convenient refilling location such as a sink.
[0319] In some implementations, the water reservoir 114 includes a water level sensor configured to measure an amount of the water 140 contained in the water reservoir 114. The water level sensor is coupled to the controller 134 and is configured to transmit measured water level information to the controller 134. The controller 134 is configured to, based on the received measured water level information, determine when the water level in the water reservoir 114 has fallen below a threshold water level. In response to the controller 134 determining that the water level has fallen below the threshold water level, the controller 134 is configured to cause the user interface 136 to instruct the user to refill the water reservoir 114 with the water 140 (or to replace the water reservoir 114 with another, more full water reservoir 114) .
[0320] In addition to or instead of the water reservoir 114 including a water level sensor, the water reservoir 114 includes at least a portion made of a transparent material to allow a user to see a water level in the water reservoir 114.
[0321] The water pumping system 116 is fluidically coupled to an outlet of the water reservoir 114 and is configured to pump water from the water reservoir 114, e.g., out of the outlet of the water reservoir 114, to the water heating system 118. The pumping system 116 is operatively coupled to the controller 134 to allow the controller 134 to control the pumping. The pumping system 116 can include, for example, a flowmeter and a fluid pump (e.g., a vibration pump or other suitable fluid pump) . The flowmeter is configured to measure an amount of water 140 flowing therethrough. The controller 134 is configured to determine an amount of water to be provided to the water heating system 118 based on the beverage order information received from the user via the user interface 136. The controller 134 is configured to control the fluid pump of the pumping system 116 using information received from the flowmeter so that the determined amount of water 140 is provided to the heating system 118.
[0322] The water heating system 118 is configured to heat the water 140 pumped from the water reservoir 114 by the pumping system 116. The water heating system 118 is operatively coupled to the controller 134 to allow the controller 134 to control the water heating system 118 and thus the heating of the water 140 (including not heating the water 140 in instances where the user has selected a cold beverage in which the water 140 should not be heated) . The water heating system 118 includes a heating device, for example a thermocoil boiler, configured to heat the water 140. The water heating system 118 also includes a temperature sensor (e.g., a thermistor or other type of temperature sensor) configured to measure a temperature of the water 140 being heated by the water heating device. In some implementations, the temperature sensor is configured to directly measure a temperature of the water 140 by, for example, contacting water 140 flowing through or output by the water heating device. In some implementations, the temperature sensor is configured to measure a temperature of the heating device by, for example, directly contacting a surface of the water heating device, as a temperature indicative of the water 140 being heated.
[0323] The controller 134 is operatively coupled to the temperature sensor and is configured to determine a temperature to which the water 140 should be heated by the heating device based on the beverage order information received from the user via the user interface 136 and, using measured temperature information received from the temperature sensor, control the heating device to heat the water 140 to the required temperature for the particular beverage selected by the user. If the user’s selected beverage requires no heating of the water 140, the controller 134 controls the water heating system 118 accordingly to simply allow the water 140, unheated, to flow through the water heating system 118 to the brew basket 110.
[0324] In an exemplary implementation, the beverage machine 100A include at least one flowmeter configured to facilitate fluid flow control in the machine 100A. For example, the at least one flowmeter can include a plurality of flowmeters, including a first flowmeter configured to measure forward flow (downstream flow) through the pumping system 116 from the water reservoir 114 and a second flowmeter configured to measure bypass flow through a pressure relief valve (PRV) of the machine 100A. The PRV is located downstream of the water pumping system 116 and upstream of the water heating system 118. The PRV is configured to automatically open at a predetermined pressure. By automatically opening at the predetermined pressure, the PRV can make the beverage machine 100A more tolerant to overly fine grounds, thus improving beverage quality. The predetermined pressure is around 9 Bar, however, other pressures may be used, such as those lower than 9 Bar. In some implementations, the predetermined pressure is adjustable by a user via the user interface 136.
[0325] The beverage is brewed in the brew basket 110 (also referred to herein as a “brew chamber” ) . The brew basket 110 includes an open container configured to receive and contain ground coffee from the grinder 108 or the bypass chute 112 and to receive and contain water 140 from the water heating system 118.
[0326] The brew basket 110 is configured to be movable between a plurality of positions. The controller 134 is configured to move the brew basket 110 between the plurality of positions during a brewing process. In a first position, the brew basket 110 is arranged to receive ground coffee from the grinder 108 and the bypass chute 112. In a second position, brew basket 110 is arranged to receive the tamper 120. The tamper 120 is configured to movable into the brew basket 110 to apply pressure to the ground coffee and water contained in brew basket 110 in order to extract coffee. Some beverages do not require use of the tamper 120, so the tamper 120 is not moved into the brew basket 110 in every brewing process (unless the user only selects beverages requiring tamping with the tamper 120) .
[0327] The tamper 120 is operatively coupled to the controller 134. The controller 134 is configured to control movement of the tamper 120 relative to the brew basket 110 to allow the tamper 120 to move into brew basket 110 by an amount sufficient to generate a brewing pressure in the brew basket 110 corresponding to the brewing pressure associated with the user-selected beverage being brewed. In some implementations, the controller 134 is configured to move the tamper 120 to one of a plurality of preset positions based on the brewing pressure associated with the user-selected beverage being brewed. In other implementations, as shown in the illustrated implementation of FIG. 1, the beverage machine 100A includes a force sensor 122 that is configured to measure a force applied to the brew basket 110 by the tamper 120. The force sensor 122 is communicatively coupled to the controller 134 and is configured to transmit to the controller 134 information indicative of the measured force, e.g., the force being applied to the brew basket 110 by the tamper 120. Using the information received from the force sensor 122, the controller 134 is configured to control the movement of the tamper 120 relative to the brew basket 110 to ensure that the appropriate brewing pressure is generated in brew basket 110.
[0328] In some implementations, a fluid channel is within the tamper 120. When extraction of coffee has completed, e.g., when the appropriate brewing pressure has been generated in brew basket 110, the controller 134 is configured to retract the tamper 120 from the brew basket 110, which generates negative pressure in the brew basket 110. This negative pressure draws fluid (e.g., brewed beverage) contained in the brew basket 110 into the fluid channel in the tamper 120. A filter is arranged over an inlet to the fluid channel to prevent coffee grounds from entering the channel. The water / brewed beverage outlet 124 is fluidically coupled to the fluid channel in the tamper 120 and is configured to output the fluid in the fluid channel from the beverage machine 100A.
[0329] In an exemplary implementation, a plunger (not shown in FIG. 1) is arranged in the brew basket 110 and is configured to push upwards from a bottom surface of the brew basket 110 toward an opening of the brew basket 110. As the brew basket 110 is returned to its starting position at the end of the brewing process, e.g., under control of the controller 134, the plunger is configured to push upwards through the brew basket 110 to eject used coffee grounds from the brew basket 110, which may improve user experience by automating this task. In some implementations, the movement of the plunger is entirely mechanical. In other implementations, the plunger is actuated electrically by, e.g., an electric motor.
[0330] The beverage machine 100A includes a waste collection container (not shown in FIG. 1) configured to receive the coffee grounds that are ejected from the brew basket 110. The waste collection container is configured to be removably coupled to the beverage machine 100A to allow for easy emptying and cleaning of the waste collection container.
[0331] The milk reservoir 126 of the machine 100A is configured to store milk 142 therein. The milk 142 can be any variety of milk product, for example dairy milk products such as whole milk, heavy cream, half-and-half, 2%milk, or non-fat milk or for another example non-dairy milk products such as almond milk, oat milk, or soy milk. In some implementations, the user interface 136 is configured to allow user input of a type of milk product contained in milk reservoir 126, as the controller 134 may control dispensing and / or frothing of the milk 142 differently depending on a type of the milk 142. Various implementations of milk frothing are further described in, for example, U.S. Patent Application No. 18 / 651,936 entitled “Milk Frothing” filed on May 1, 2024, and U.S. Patent No. 11,812,892 entitled “Fluid Texturing Device” issued on November 14, 2023, which is each hereby incorporated by reference in its entirety.
[0332] The milk reservoir 126 is configured to keep the milk 142 cold. In some implementations, the milk reservoir 126 is lined with an insulating material to facilitate chilling of the milk 142 and / or the milk reservoir 126 includes a cooling system. The cooling system is communicatively coupled to the controller 134 and includes a temperature sensor configured to measure the temperature of the milk 142. The controller 134 is configured to control the cooling system based on data received from the temperature sensor configured to measure the temperature of the milk 142 to ensure that the temperature of the milk 142 remains within a threshold temperature range. The threshold temperature range depends on the milk product type.
[0333] The milk reservoir 126 is configured to be refilled with the milk 142 by a user. In some implementations, the milk reservoir 126 is non-removably coupled to the beverage machine 100A, which may simplify manufacturing of the beverage machine 100A. A user can provide the milk 142 to the milk reservoir 126 by, e.g., pouring or otherwise providing the milk 142 through an opening in the milk reservoir 126. In other implementations, the milk reservoir 126 is removably coupled to the beverage machine 100A, allowing users to detach the milk reservoir 126 from the beverage machine 100A and carry the milk reservoir 126 to a convenient refilling location.
[0334] In some embodiments, the milk reservoir 126 includes a milk level sensor configured to measure an amount of the milk 142 contained in the milk reservoir 126. The milk level sensor is communicatively coupled to the controller 134 and is configured to measure and transmit milk level information to the controller 134. The controller 134 is configured to determine when the milk level in milk reservoir 126 has fallen below a threshold milk level. In response to the controller 134 determining that the milk level has fallen below the threshold milk level, the controller 134 is configured to cause the user interface 136 to instruct the user to refill the milk reservoir 126 with the milk 142 (or to replace the milk reservoir 126 with another, more full milk reservoir 126) .
[0335] In addition to or instead of the milk reservoir 126 including a milk level sensor, the milk reservoir 126 includes at least a portion made of a transparent material to allow a user to see a milk level in the milk reservoir 126.
[0336] In some embodiments, the controller 134 is configured to determine when the milk 142 contained in the milk reservoir 126 requires replacing. In such implementations, the user interface 136 is configured to allow user input indicating a date and time that the milk reservoir 126 has been refilled. The controller 134 is configured to use the input date and time to determine a replacement date and time for the milk 142, which may also be based on a type of the milk product. If the milk reservoir 126 is not refilled prior to the determined replacement date and time, as indicated by a second user input via the user interface 136, the controller 134 is configured to cause the user interface 136 to instruct the user to dispose of the remaining milk 142 in the milk reservoir 126 and to refill the milk reservoir 126 with fresh milk (or to replace the milk reservoir 126 with another milk reservoir 126) .
[0337] In some embodiments, the controller 134 is configured to cause the user interface 136 to periodically instruct the user to clean the milk reservoir 126, which is generally more susceptible to becoming dirty than the water reservoir 114.
[0338] The milk pumping system 128 is fluidically coupled to an outlet of the milk reservoir 126 and is configured to pump the milk 142 from the milk reservoir 126 to the milk heating system 130. The milk pumping system 128 is operatively coupled to the controller 134 to allow the controller 134 to control the milk pumping system 128. In an exemplary implementation, the milk pumping system 128 includes a flowmeter and fluid pump (e.g., a vibration pump or other suitable fluid pump) . The flowmeter is configured to measure an amount of the milk 142 flowing therethrough. The controller 134 is configured to determine an amount of the milk 142 to be provided to the milk heating system 130 based on the beverage order information received from the user via user interface 136, on milk product type, and / or on milk frothing preference input by au ser via the user interface 136. The controller 134 is configured to control the fluid pump of the milk pumping system 128 using information received from the flowmeter of the milk pumping system 128 so that the determined amount of milk 142 is provided to the heating system 130.
[0339] The milk heating system 130 is configured to heat the milk 142 pumped from the milk reservoir 126 by the milk pumping system 128. The milk heating system 130 is operatively coupled to the controller 134 and includes a heating device, for example a thermocoil boiler. The water heating system 130 also includes a temperature sensor (e.g., a thermistor or other type of temperature sensor) configured to measure a temperature of the milk 142 being heated by the milk heating device. In some implementations, the temperature sensor is configured to directly measure a temperature of the milk 142 by, for example, contacting the milk 142 flowing through or output by the milk heating device. In some implementations, the temperature sensor is configured to measure a temperature of the milk heating device by, for example, directly contacting a surface of the milk heating device, as a temperature indicative of the milk 142 being heated.
[0340] The controller 134 is operatively coupled to the temperature sensor of the milk heating system 130 and is configured to determine a temperature to which the milk 142 should be heated by the milk heating device based on the beverage order information received from the user via the user interface 136, on milk product type, and / or on milk frothing preference input by au ser via the user interface 136 and, using measured temperature information received from the temperature sensor, control the milk heating device to heat the milk 142 to the required temperature for the particular beverage selected by the user. If the user’s selected beverage requires no heating of the milk 142, the controller 134 controls the milk heating system 130 accordingly to simply allow the milk 142, unheated, to flow through the milk heating system 130 to the milk outlet 132.
[0341] The components of the beverage machine 100A are contained in or attached to a housing (not shown in FIG. 1) . The housing (also referred to herein as a “frame” ) includes a base configured to be positioned on a support surface such as a countertop. The water and milk outlets 124, 132 are arranged on the housing. Extending distally from the housing beneath the water and milk outlets 124, 132 are one or more surfaces (not shown in FIG. 1) configured to support a beverage container (e.g., a mug, cup, etc. ) . The housing can include a drip tray configured to collect any fluid drips from the water and milk outlets 124, 132 when the beverage container is not present.
[0342] In some implementations, a beverage machine can include multiple (e.g., at least two) hoppers. Each hopper can be configured to contain a different type of coffee bean. All of hoppers can be configured to be coupled to the beverage machine at the same time. This can allow users to select between multiple types of coffee beans without requiring manual swapping of hoppers.
[0343] A block diagram of dual-hopper beverage machine implementation 100B is shown in FIG. 1B. Portions of the beverage machine 100B that are substantially the same as those in the beverage machine 100A are not shown in FIG. 1B. Like the beverage machine 100A, the beverage machine 100B can include a weight sensor 104, a dispenser 106, a controller 135, and a user interface 136. The weight sensor 104, dispenser 106, controller 135, and user interface 136 are configured and used similarly to the weight sensor 104, dispenser 106, controller 135, and user interface 136 in the beverage machine 100A. Unlike the beverage machine 100A, which is configured to couple to a single hopper 102 at any given time, the beverage machine 100B is configured to couple to two different hoppers 102a, 102b simultaneously. The two hoppers 102a, 102b of the beverage machine 100B are configured similarly to the hopper 102 of the beverage machine 100A. The hopper 102a can include a hopper identification device 146a and the hopper 102b can include a hopper identification device 146b. The identification devices 146a, 146b can be configured similarly to the identification device 146 of the beverage machine 100.
[0344] The weight sensor 104 in the beverage machine 100B is configured to measure a weight of both the hopper 102a and the hopper 102b, as well as the weights of any coffee beans contained in the hopper 102a and / or the hopper 102b. The controller 134 is communicatively coupled to the weight sensor 104 and is configured to receive information regarding the measured weight of the hoppers 102a, 102b from the weight sensor 104. As previously described with respect to FIG. 1A, the controller 134 can use the information provided by the weight sensor 104 regarding the measured weight to control various components of the beverage machine 100B. The controller 134 can also be configured to tare the weight sensor 104 (e.g., prior to initiating dispensing of coffee beans from either of the hoppers 102a, 102b) to ensure accuracy of the measured weight.
[0345] The dispenser 106 in the beverage machine 100B is configured to controllably dispense coffee beans from the hopper 102a and from the hopper 102b. The dispenser 106 in the beverage machine 100B can be configured to rotate relative to the hopper 102a and the hopper 102b and can include two inlet holes (not shown in FIG. 1B) . As the dispenser 106 rotates, each of the two inlet holes in the dispenser 106 may periodically align with either an outlet of the hopper 102a or an outlet of the hopper 102b. When an inlet hole of the dispenser 106 aligns with an outlet of one of the hoppers 102a, 102b for a sufficient duration, beans from that hopper can flow out of the hopper and into the inlet hole of the dispenser 106.
[0346] The controller 134 can be configured to control the rotation speed of the dispenser 106 based upon a user selection of coffee bean type received through the user interface 136. The controller 134 can identify which of the two hoppers 102a, 102b contains the user’s selected coffee bean type using the hopper identification devices 146a, 146b. Once the correct hopper is identified, the controller 134 can initiate dispensing of coffee beans from that hopper by modulating the rotation speed of the dispenser 106 to reduce the rotation speed of the dispenser 106 when one of the two inlet holes in the dispenser 106 aligns with the outlet of the hopper that contains the user’s selected bean type and to increase the rotation speed to the dispenser 106 when either of the two inlet holes in the dispenser 106 aligns with the outlet of the hopper that does not contain the user’s selected bean type.
[0347] FIG. 2 illustrates an example beverage machine implementation 200. The beverage machine 200 of FIG. 2 is generally configured and used similarly to the beverage machine 100A of FIG. 1A and includes components similar to those discussed above regarding the beverage machine 100 of FIG. 1A, e.g., the beverage machine 200 includes a controller (obscured in FIG. 2) , a memory (obscured in FIG. 2) , a housing 252, a waste collection container 370 (see FIG. 3B) , a hopper 202, a weight sensor (aload cell 474 in this illustrated implementation, see FIG. 4A) , an electro-mechanical rotor 406 (see FIG. 4E) , a water reservoir 214, a milk reservoir 226, a milk outlet 232, a water / beverage outlet 224, a user interface 236, a grinder 708 (see FIG. 7A) , a bypass chute 712 (see FIG. 7A) , a brew basket 810 (see FIGS. 8A and 8B) , a plunger 841 (see FIG. 8C) , a water inlet 833 (see FIG. 8B) , a tamper 920 (see FIGS. 9A and 9B) , drip tray (abase portion 254b) , etc. Like features will not all be described again in detail. The beverage machine 200 in this illustrated implementation is an espresso machine configured to brew espresso drinks and one or more types of non-espresso coffee beverages.
[0348] The beverage machine 200 includes a top portion 200a, a bottom portion 200b, a front portion 200c, a rear portion 200d, and a pair of opposed side portions 200e, 200f. The beverage machine 200 is generally box-shaped, though it will be appreciated by those skilled in the art that other geometric configurations are possible.
[0349] The beverage machine 200 includes a housing 252 configured to house internal components of the beverage machine 200 and to support external components of the beverage machine 200. The housing 252 includes a base 254 that defines the bottom portion 200b of the beverage machine 200 and is configured to be positioned on a support surface such as a countertop or a table.
[0350] Various views and portions of the base 254 are provided in FIGS. 3A-3D. As shown in FIGS. 3A-3B, the base 254 includes a first portion 254a and a second portion 254b. The first portion 254a is non-removably coupled to the housing 252 of the beverage machine 200 (see FIG. 2) . The second portion 254b is removably coupled to and partially overlaps with the first portion 254a.
[0351] The first base portion 254a include a first region 355a, a second region 355b, and a third region 355c, as shown in FIG. 3C. As in this illustrated implementation, the regions 355a and 355c can be generally L-shaped and can together form a generally rectangular region and the region 355b can be a generally rectangular region protruding from one side of base portion 254a.
[0352] The region 355a base portion 254a is configured to contain one or more electronic components of the beverage machine 200. The rear wall of the region 355a includes a notch 351a (FIG. 3C) . Adjacent to the notch 351a in the region 355a is one or more protrusions 351b. As shown in FIGS. 3A-3B, an electrical plug 368a configured to connect to a power source (e.g., a wall outlet) is disposed outside of the base 254. Electrical wires 368b configured to provide power from the power source to electronic components of the beverage machine 200 extend from the plug 368a and into an interior region of the base 254 through the notch 351a. Protrusions 351b are configured to support and the electrical wires 368b to various components of the beverage machine 200.
[0353] An opening 353 is disposed in a side wall of the region 355a of the base portion 254a (FIG. 3C) . As shown in FIGS. 3A-3B, a switch 366 configured to control the power supplied to the electronic components of the beverage machine 200 is inserted through the opening 353. The switch 366 can be any suitable electronic switch, for example a push button switch, a toggle switch, or a linear sliding switch.
[0354] One or more concave portions 374 are disposed in an exterior side wall of the region 355a of the base portion 254a, as shown in FIG. 3B. The one or more concave portions 374 are configured to provide handholds that allow a user to lift and maneuver the beverage machine 200.
[0355] The region 355b of the base portion 254a is a water reservoir support region. As shown in FIG. 3A, the region 355b contains a water reservoir aligner 360 that includes a water inlet 362. Various components of the beverage machine 200 are fluidically coupled to receive water through a water inlet 326.
[0356] The region 355c of the base portion 254a is configured to removably couple to the second base portion 254b. As shown in FIG. 3D, the base portion 254b includes a first region 357a, a second region 357b, and a third region 357c. The first region 357a and the second region 357b together form a generally L-shaped region that corresponds to the shape of the region 355a of the base portion 354a (see FIG. 3C) . The second base portion 254b is configured to be removably coupled to the first base portion 254a by sliding the regions 357a-357b of the second portion 254b into the region 355c of the first portion 254a. The rear wall of the region 355c of the base portion 254a includes one or more notches 359a (see FIG. 3C) . The notches 359a are configured to receive corresponding brackets 359b disposed on a rear wall of the region 357a of the base portion 254b (see FIG. 3D) .
[0357] As explained in further detail below, the base portion 254b is configured to collect waste that is generated while the beverage machine 200 is in use. The removability of the base portion 254b allows the base portion 254b to be easily detached from the beverage machine 200 and carried to a convenient waste disposal or cleaning location (e.g., a sink or a trash receptacle) .
[0358] The region 357c extends from a front side of the base portion 254b. As shown in FIG. 2, when the base portion 254b is connected to the base portion 254a, the region 357c protrudes from the front side 200c of the beverage machine 200 and forms a drip tray. A removable plate 356 including a plurality of through-slots 356a covers an upper portion of region 357a and is configured to support a user’s beverage container above region 357a. The plurality of through-slots 356a are configured to direct fluid waste (e.g., fluid drips that are not captured by the beverage container or fluid overflow from the beverage container) into the region 357a.
[0359] The region 357a of the base portion 254b is fluidically connected to the region 357a and is configured to provide additional space for fluid waste to collect if the region 357a is overfilled. Brackets 359 contain water level sensors (e.g., water level detection plates) 364 configured to detect when an amount of fluid contained in the regions 357a, 357c of the base portion 254b exceeds a threshold amount. Water level sensors 264 are operatively coupled to the controller of the beverage machine 200, which is configured to notify users to remove the base portion 254b for emptying and / or cleaning, e.g., via the user interface 236. The region 357a is covered by a removable lid 358 to prevent fluid spills when the base portion 254b is removed.
[0360] The region 357b of the base portion 254b supports a container 370 configured to collect used coffee grounds. A front wall 372 of the container 370 extends laterally over a front portion of the region 357a that joins with the region 357c. When the base portion 254b is connected to the base portion 254a, the wall 372 is configured to be received by a corresponding opening in the housing 252 in the front portion 200c of the beverage machine 200 and separate the interior region of the beverage machine 200 from the exterior region of the beverage machine 200.
[0361] Referring again to FIG. 2, the beverage machine 200 includes a hopper 202 configured to contain coffee beans. The hopper 202 is configured to be removably coupled to the housing 252, e.g., to the top portion 200a of the beverage machine 200, in this illustrated implementation. As in this illustrated implementation, the top portion 200a of the beverage machine 200 can include an opening into which the hopper 202 can be inserted from above the beverage machine 200. In other implementations, the top portion 200a can include a slot into which the hopper 202 can be inserted from the sides of the beverage machine 200 to be side-loaded.
[0362] FIGS. 4A-4J show various components of the hopper 202 as well as components of the beverage machine 200 that interact with the hopper 202. As shown in FIGS. 4A-4B, the hopper 202 includes a container portion 202a that in this illustrated implementation is generally box-shaped and is configured to receive and contain coffee beans. The container portion 202a includes a removable lid to allow for refilling of the hopper 202.
[0363] A bottom view of container portion 202a is provided in FIG. 4C. An opening 477 is disposed in the bottom of the container portion 202a. A concave protrusion 479 extends above the opening 477 from the interior region of the container portion 202a. Arranged in the interior region of the container portion 202a above the opening 477 and the concave protrusion 479 is a grating 478.
[0364] An electro-mechanical rotor 406 is arranged in the opening 477 beneath the concave protrusion 479, as shown in FIG. 4D. The rotor 406 can be driven by a motor that is operatively coupled to the controller of the beverage machine 200. The electro-mechanical rotor 406 includes a central protrusion 480 that is surrounded by plurality of circumferential spokes 481 (FIG. 4E) . The spokes 481, also referred to herein as “paddles” or “blades” , can be formed from a flexible material that enables the spokes 481 to bend over coffee beans passing therebetween to mitigate or prevent stalling of the motor that drives the rotor 406. The spacing 481a between adjacent spokes 481 can be such that only a predetermined amount of coffee beans can pass therebetween at any given time. In some implementations, the spacing 481a between adjacent spokes 481 enables the rotor 406 to dispense within 0.5 g of a predetermined dose of coffee beans from the hopper 202 (e.g., ensures the rotor 406 can dispense the predetermined dose of coffee beans ± 0.5 g of coffee beans) .
[0365] A funnel 476 is arranged on the exterior of container portion 202a beneath the opening 477 (FIG. 4F) . The funnel 476 includes a central through-hole 483 and a peripheral spout 485 (FIG. 4G) . As shown in FIG. 4F, the central protrusion 480 of the electro-mechanical rotor 406 extends through the through-hole 483 of the funnel 476 while the spout 485 is arranged directly beneath the concave protrusion 476 to form a channel that extends from the interior region of the container portion 202a beneath the concave protrusion 479.
[0366] The container portion 202a of the hopper 202 is connected to a weight sensor 474, which is a load cell 474 (FIGS. 4A-4B) of the hopper 202 in this illustrated implementation. The load cell 474 includes a central through-hole 487 and a peripheral through-hole 489 (FIG. 4H) . The central protrusion 480 of the electro-mechanical rotor 406 extends through the through-hole 487 and the spout 485 extends through the peripheral through-hole 489 (FIG. 4B) .
[0367] The load cell 474 also includes an alignment plate 475 (FIG. 4B) . The alignment plate 475 defines a slot 490. When the hopper 202 is connected to the beverage machine 200 (FIG. 2) , e.g., top-loaded in this illustrated implementation, a rotor motor 482 contained in the beverage machine 200 and configured to drive the electro-mechanical rotor 406 is inserted into the slot 490 (FIG. 4I) to connect a shaft 491 of the motor 482 (FIG. 4J) to the central protrusion 480 of the electro-mechanical rotor 406.
[0368] The motor 482 is operatively coupled to the controller of the beverage machine 200. When the motor 482 is on, the rotation of the spokes 491 of the electro-mechanical rotor 406 causes coffee beans contained in the container portion 202a to move beneath the concave protrusion 479, into the spout 485, and out of the hopper 202. That is, the electro-mechanical rotor 406 functions as a dispenser for the hopper 202. When the motor 482 is off, the concave protrusion 479 shields the spout 485 to prevent coffee beans in the hopper 202 from entering the spout 485.
[0369] Referring again to FIG. 2, the beverage machine 200 includes a water reservoir 214 arranged on the side portion 200e. The water reservoir 214 is removably connected to the base 254 of the housing 252 of the beverage machine 200 in this illustrated implementation, specifically to the base portion 254a. As described above with reference to FIGS. 3A-3D, the base portion 254a includes a water reservoir support region 355b (FIG. 3C) that contains the water reservoir aligner 360 (FIG. 3A) . The water reservoir 214 is configured to couple to the base 254 by inserting a bottom portion of the water reservoir 214 into the water reservoir aligner 360.
[0370] FIGS. 5A-5E provide various views of the water reservoir 214. As shown in FIG. 5A, the water reservoir 214 includes a tank portion 214b that is covered by a removable lid 214a. The lid 214a is configured to be removed to allow for the tank portion 214b to be filled with water.
[0371] A pair of concave regions 214c, 214d are formed in an external distal side surface of the tank portion 214b. The concave regions 214c, 214d are configured to provide users with a handhold for lifting and carrying the water reservoir 214.
[0372] A third concave region 214e is formed in an external proximal side surface of the tank portion 214b (FIG. 5B) . The concave region 214e is configured to receive a corresponding bracket or protrusion on an external surface of the housing 252 of the beverage machine 200 to provide additional support to the water reservoir 214.
[0373] The bottom surface of the water reservoir 214 includes a through-hole 590 (FIG. 5C) . Arranged in the through-hole 590 is an outlet valve 592 (FIGS. 5C-5D) . As shown in FIG. 5E, the outlet valve 592 is spring-loaded with a spring 593. The spring 593 is configured to provide a biasing force to the outlet valve 592 that biases the outlet valve 592 to a closed configuration. When the water reservoir 214 is coupled to the beverage machine 200, a force that overcomes the biasing force provided by the spring 593 is applied to the outlet valve 392, causing the outlet valve 592 to open and allowing water to flow from the tank portion 214b and into the water inlet 362 in the water reservoir aligner 360 (see FIG. 3A) . When the water reservoir 214 is de-coupled from the beverage machine 200, this counteracting force is removed, and the spring 593 returns the outlet valve 592 to the closed configuration.
[0374] Referring again to FIG. 2, the beverage machine 200 includes a milk reservoir 226, which in this illustrated implementation is arranged on the side portion 200e adjacent to the water reservoir 214.
[0375] A milk outlet 232 is arranged adjacent to the front portion 200c of the beverage machine 200. The milk outlet 232 is supported by an arm 698 that extends from a front side portion of the milk reservoir 226 to a back portion of the milk outlet 232. A fluid channel configured to carry milk from the milk reservoir 226 to the milk outlet 232 is arranged within an interior region of the arm 698. In some implementations, the arm 698 is configured to rotate about its attachment point to the milk reservoir 226 to enable the milk outlet 232 to be moved vertically relative to the base 254 of the beverage machine 200.
[0376] FIGS. 6A-6C illustrate various views and components of the milk reservoir 226. As shown, the milk reservoir 226 includes a tank portion 226b that is covered by a removable lid 226a. The lid 226a is configured to be removed to allow for the tank portion 226b to be filled with a milk product.
[0377] Arranged on an outer surface of lid 226a are dials 696. The dials 696 are configured to allow a user of the beverage machine 200 to control properties of the milk that is dispensed from the milk reservoir 226 through the milk outlet 232. In this implementation, a first dial 696 enables the user to adjust an amount of milk that is dispensed, and a second dial 696 enables the user to choose whether the dispensed milk is hot or cold.
[0378] Contained within the tank portion 226b are first and second tubes 695a, 695b and first and second valves 699a, 699b. The first tube 695a extends from a lower region of the tank portion 226 to an upper region of the tank portion 226, where it fluidically couples to an inlet of the first valve 699a. The second tube 695b extends from an outlet of the first valve 699a to an inlet of the second valve 699b. An outlet of the second valve 699b is fluidically coupled to the fluid channel contained in the arm 698. Milk contained in the tank portion 226b is configured to be drawn into the first tube 695a, then flow through the first valve 699a, then flow into the second tube 695b, then flow through the second valve 699b, then flow into the arm 698, and then flow through the outlet 232.
[0379] The milk outlet 232 includes one or more nozzles 232a. In the illustrated implementation, the milk outlet 232 includes two nozzles 232a.
[0380] Referring again to FIG. 2, the beverage machine 200 includes the water / beverage outlet 224. The water / beverage outlet 224 is arranged on the front portion 200c of the beverage machine 200 behind the milk outlet 232 in this illustrated implementation.
[0381] Similar to the milk outlet 232, the beverage outlet 224 includes one or more nozzles (obscured in FIG. 2) .
[0382] A support surface 250 is attached to the front portion 200c beneath the outlets 224, 232. The support surface 250 is movable, e.g., foldable, between a first position, in which the support surface 250 extends distally outward from the housing 252, and a second position, in which the support surface 250 is flush against the housing 252. The support surface 250 is configured to be moved to the first position to support a beverage container and to be moved to the second position to provide space for larger beverage containers to be supported on the cover plate 356 of the drip tray region 357c of the base 254.
[0383] The beverage machine 200 also includes a user interface 236. In this illustrated implementation, the user interface 236 is a rectangular panel arranged on the front portion 200c of the beverage machine 200. Those skilled in the art will appreciate that, in other implementations, the user interface 236 can be arranged in a different location on the beverage machine 200, for example on the top portion 200c. In some implementations, the user interface 236 is additionally or alternatively a device that is separate from the beverage machine 200, for example using a mobile device such as a tablet or a smart phone.
[0384] In the illustrated example, three user controls 236a are arranged near a bottom edge of the user interface 236. The user controls 236a are configured to allow user input of beverage order information or other information related to the operation or maintenance of the beverage machine 200, as described above with reference to user interface 136 of the beverage machine 100 (FIG. 1) . Those skilled in the art will appreciate that, in other implementations, the user interface 236 can include a different number and / or type of user controls 236a.
[0385] Housed within the housing 252 of the beverage machine 200 are a grinder 708 and a bypass chute 712, illustrated in FIGS. 7A-7D.
[0386] The grinder 708 includes a chamber 708a with an open upper end. The open upper end of chamber 708a is arranged to receive coffee beans that are dispensed through the funnel spout 485 of the hopper 202 (see FIGS. 4A-4B) . Contained within the chamber 708a is an inner burr 715 and an outer burr 717. The inner burr 715 and the outer burr 717 define a space therebetween into which coffee beans received by the chamber 708a from the hopper 202 are configured to be delivered.
[0387] The inner burr 715 and the outer burr 717 can have a variety of configurations. In the illustrated implementation, the inner burr 715 is a frustoconical burr and the outer burr 717 is a ring burr that surrounds the inner burr 715.
[0388] A shaft 713 is arranged in an interior region of the grinder 708 along a longitudinal axis of the inner burr 715. The shaft 713 includes an upper portion 713a that is inserted in a cavity 715a of the inner burr 715. The shaft 713 operably couples the inner burr 715 to a grinder motor 709. The shaft 713 is connected to the motor 709 by a gear train 711a, 711b, 711c, as shown in FIG. 7D. A first gear 711a of the gear train is arranged to contact a shaft 709a of the motor 709. A second gear 711b of the gear train is disposed in an axial bore of the first gear 711a. A third gear 711c of the gear train is adjacent to the second gear 711b. The shaft 713 extends through an axial bore of the third gear 711c. When the motor 709 is turned on, the motion of the motor shaft 709a causes the first gear 711a to rotate. Rotation of the first gear 711a induces rotation in the second gear 711b which, in turn, induces rotation in the third gear 711c, thereby driving rotation of the shaft 713. The rotation of the shaft 713 causes the inner burr 715 to rotate relative to the outer burr 717 rotation of the inner burr 715 about a longitudinal axis of the inner burr 715. This relative motion results in the grinding of coffee beans contained in the space defined between the inner burr 715 and the outer burr 717.
[0389] The grinder motor 709 is operatively coupled to the controller of the beverage machine 200. The controller is configured to start the motor 482 that rotates the electro-mechanical rotor 406 in the hopper 202 to initiate dispensing of coffee beans from the hopper 202 into the chamber 708a. After the rotor motor 482 has been running for a predetermined amount of time, the controller is configured to start the grinder motor 709 to commence grinding of the coffee beans that have been delivered into the chamber 708a. The amount of time between the starting of the rotor motor 482 and the starting of the grinder motor 709 can be, for example, less than about 1 second, between about 1 and about 10 seconds, or greater than about 10 seconds.
[0390] As discussed in further detail below, the controller is configured to monitor the change in the weight of the hopper container 202a using information received from the load cell 474 as coffee beans are dispensed from the hopper 202 and thus also as the coffee beans are ground by the grinder 708. In response to the controller detecting that the weight of hopper container 202a has changed by a predetermined amount, the controller is configured to stop motor 482 to halt the dispensing of coffee beans. The controller is configured to allow the grinder motor 709 to continue running for a predetermined duration after rotor motor 482 is halted to ensure that all of the beans delivered to grinder 708 are ground and that no unground beans are retained in grinder 708. In various implementations, this predetermined duration is between 1 second and 15 seconds, for example about 2 seconds, 3 seconds, 4 seconds, 5 seconds, 6 seconds, 7 seconds, 8 seconds, 9 seconds, or 10 seconds.
[0391] The burrs 715, 717 are arranged in a carriage 727 that, in turn, is arranged in an axial bore of a fourth gear 723b. The fourth gear 723b is a component of a second gear train 723a, 723b that operatively couples the carriage 727 to an adjustment motor 725. As shown in FIGS. 7E-7F, carriage 727 includes one or more pins 727a that extend radially outward from an external surface thereof and the fourth gear 723b includes one or more tracks 729 formed in an inner surface thereof. Each track 729 in the inner surface of the fourth gear 723b is helical, although each track 729 does not necessarily extend completely around an entire circumference of the inner surface of the fourth gear 723b. Each pin 727a of the carriage 727 is slidably seated in a track 729 of the fourth gear 723b.
[0392] The adjustment motor 725 is configured to rotate a fifth gear 723a of the second gear train. The fifth gear 723a is engaged with the fourth gear 723b so that rotation of the fifth gear 723a induces rotation of the fourth gear 723b. The rotation of the fourth gear 723b is in a horizontal plane. The fourth gear 723b does not move upward or downward during its rotation. The rotation of the fourth gear 723b causes the pins 727a of the carriage 727 to slide within tracks 729 of the fourth gear 723b. Due to the helical nature of the tracks 729, the sliding of the pins 727a in the tracks 729 causes the carriage 727 to either move vertically upward or downward, depending on the direction in which the fifth gear 723b is rotated.
[0393] The movement of the carriage 727 moves the outer burr 717 vertically upward or downward relative to the inner burr 715. A diameter of the inner burr 715 decreases in an upward direction due to the frustoconical shape of the inner burr 715. Moving the outer burr 717 therefore allows the grind size of the grinder 708 to be adjusted. The higher vertically that the outer burr 717 is located relative to the inner burr 715, the coarser the grinder 708 will grind the beans using the outer and inner burrs 717, 715. Correspondingly, the lower vertically that the outer burr 717 is located relative to the inner burr 715, the finer the grinder 708 will grind the beans using the outer and inner burrs 717, 715. An uppermost position of the inner burr 715 corresponds to the coarsest grind, and a lowermost position of the inner burr 715 corresponds to the finest grind.
[0394] The motor 725 is operatively coupled to the controller of the beverage machine 200. As explained in further detail below, the controller is configured to operate the motor 725 to adjust the grind size of the grinder 708 based on information including order information received from the user via the user interface 236.
[0395] In the illustrated implementation, the adjustment of the grind size of the grinder 708 is automatic and driven by an electric motor. In other implementations, the grind size of grinder 708 is manually adjustable by a user. Various techniques for adjusting the grind size of coffee grinders are described further, for example, in U.S. Patent Application No. 18 / 651,926 entitled “Suggesting Coffee Bean Grind Size for Beverage Machines” filed on May 1, 2024, which is hereby incorporated by reference in its entirety.
[0396] In some implementations, the adjustment motor 725 can be a servo motor having an encoder that is configured to detect the angular displacement of the motor 725. The encoder can transmit encoding values representing angular displacement measurements to a control unit of the motor 725. The control unit of the motor 725 can be configured to adjust the displacement of the motor 725 based on the displacement data. The controller of the beverage machine 200 can store a mapping between each grind size setting of the grinder 708 and a range of encoder values of the encoder. The controller can be communicatively coupled to the motor 725. When the controller has determined or received a grind size setting for a given beverage order, the controller can identify the range of encoder values of the encoder that correspond to the determined grind size setting and can transmit the identified range of encoder values to the control unit of the motor 725. The control unit of the motor 725 can be configured to adjust the angular displacement of the motor 725 based upon the identified range of encoder values. As the angular displacement of the motor 725 changes, the grind size setting of the grinder 708 also changes due to the operative coupling between the motor 725 and the grinder 108. The motor 725 can be configured to rotate at full duty until the encoder communicates encoder values within the identified range of encoder values that correspond to the determined grind size setting, at which point the motor 725 can be commanded to stop.
[0397] A chute 708b extends from an interior of the grinder 708 to an outlet 721. The chute 708b is configured to deliver ground coffee from the chamber 708a to the outlet 721. The outlet 721 is also connected to the bypass chute 712. The bypass chute 712 allows a user to bypass the grinder 708 by manually delivering ground coffee to the bypass chute 712. An access port 248 formed in the top portion 200a of the beverage machine 200 allows users to access the bypass chute 712 (see FIG. 2) . In some implementations, a scoop for measuring and delivering ground coffee can be provided with the beverage machine 200. In the illustrated implementation, a scoop (not shown) is housed in the beverage machine 200 directly beneath the access port 248.
[0398] Also housed within the housing 252 of the beverage machine 200 is a brew basket (or brew chamber) 810, shown in FIGS. 8A-8H. The brew basket 810 in this illustrated implementation is a generally cylindrical container with an open upper end. A brew basket frame 810a with a rectangular outer edge and a circular inner edge is arranged above the open upper end of the brew basket 810. An inclined surface extends downward from an edge of the brew basket frame 810a at an angle with an exterior side surface of the brew basket 810.
[0399] As shown in FIGS. 8B-8D, a bottom surface 810c of the brew basket 810 includes a central through-hole 810d. A plunger 841 (FIG. 8C) is arranged in the brew basket 810. The plunger 841 includes a disk 841a and a shaft 841b that extends from an underside of the disk 841a. The disk 841a is contained in an interior region of the brew basket 810 and has substantially the same radius as the brew basket 810. The shaft 841b extends through through-hole 810d to an exterior region of the brew basket 810.
[0400] A water inlet 833 is arranged adjacent to the brew basket 810 (FIGS. 8A, 8B) . The water inlet 833 is fluidically coupled to a channel 810e that runs beneath and parallel to bottom surface 810c of the brew basket 810 (FIG. 8E) . A second channel 810f extends from an interior region of the brew basket 810, through the bottom surface 810c, and into the channel 810e. Water that enters the water inlet 833 (e.g., water delivered from the water receptacle 214 of the beverage machine 200) is transported into the interior region of the brew basket 810 through the channels 810e, 810f. The disk 841a includes a plurality of through-holes 841c configured to allow water to pass upward through the disk 841.
[0401] The brew basket 810 is arranged between a pair of parallel walls 837a, 837b. A first track 837c and a second track 837d are formed in an inner surface of the first wall 837a (FIG. 8G) . Likewise, a first track 837e and a second track 837f are formed in an inner surface of the second wall 837b (FIG. 8H) . The first and second tracks 837c, 837e are linear and extend upwards from the lower regions of the walls 837a, 837b at an angle with the bottom edges of the walls 837a, 837b. The tracks 837d, 837f are curved and extend laterally from the tracks 837c, 837e toward the medial regions of the walls 837a, 837b.
[0402] An upper pin 810g and a lower pin 810h extends from each side of the outer surface of the brew basket 810 (FIG. 8F) . The pins 810g, 810h are arranged in a line that runs parallel to a longitudinal axis of the brew basket 810 and are slidably seated in the tracks 837c-837f formed in the walls 837a, 837b.
[0403] A jointed arm 873 is arranged beneath the brew basket 810. The arm 841 is configured to extend and unfold at one or more joints. Movement of the arm 873 causes the pins 810g, 810h to slide within the tracks 837c-837f in the walls 837a, 837b and, as a result, adjusts the position of the brew basket 810 relative to the walls 837a, 837b. Sliding of the upper pins 810g within the curved tracks 837d, 837f causes the brew basket 810 to pivot along a path parallel to the curved tracks 837d, 837f. Sliding of the pins 810g, 810h within the linear tracks 837c, 837e causes the brew basket 810 to move linearly in a direction parallel to the tracks 837c, 837e.
[0404] A brew basket motor 831 arranged adjacent to the first wall 837a (FIG. 8A) is configured to drive the motion of the arm 873. The brew basket motor 831 is operatively coupled to the arm 873 by a shaft 843 (FIG. 8A) arranged in a cavity 873a that extends laterally from the arm 873. Motion is transmitted from the brew basket motor 831 to the arm 841 by a third gear train 835a, 835b, 835c. A first gear 835a of the third gear train engages with a geared shaft 831a of the motor 831. A second gear 835b of the third gear train protrudes axially from the center of the first gear 835a of the third gear train and rotates as the first gear 835a of the third gear train rotates. A third gear 835c of the third gear train engages with second gear 835b of the third gear train. The shaft 843 extends through an axial bore of the third gear 835c of the third gear train and is rotated about its longitudinal axis by the third gear 835c of the third gear train. The shaft 843 engages with teeth that protrude from an inner wall of the cavity 873a (FIG. 8E) to move the arm 873. The arm 873 is caused to either fold or unfold depending on the direction of rotation of the shaft 843.
[0405] The brew basket motor 831 is operatively coupled to the controller of the beverage machine 200. As explained further herein, the controller is configured to control the brew basket motor 831 to adjust the position of the brew basket 810 during the brewing process.
[0406] As described above, the brew basket frame 810a is arranged above the open upper end of the brew basket 810. The brew basket frame 810 is not attached to the brew basket 810 and does not move with the brew basket 810. When the brew basket 810 is driven to pivot, the open upper end of the brew basket 810 slides beneath the brew basket frame 810.
[0407] The outer sidewalls of the brew basket 810 can include one or more recesses 810i. As explained further herein, the recesses 810i can be configured to receive spring-loaded clamps of a tamper of the beverage machine 200 when the position of the brew basket 810 is adjusted to align with the tamper.
[0408] Also housed within the housing 252 of the beverage machine 200 is a tamper 920, shown in FIGS. 9A-9D. The tamper 920 in this illustrated implementation is an elongate cylinder with a threaded external surface 920a. In the illustrated implementation, the tamper 920 extends through a bore in a housing 949. As shown in FIG. 9B, contained within the housing 949 is a fourth gear train 947a, 947b, 947c that operatively couples tamper 920 to a motor (not shown in FIGS. 9A-9D) . A first gear 947a of the fourth gear train is arranged to be rotated by a shaft of the motor. A second gear 947b of the fourth gear train engages with the first gear 947a of the fourth gear train and is rotated by the first gear 947a of the fourth gear train. A third gear 947c of the fourth gear train engages with the second gear 947b of the fourth gear train and is rotated by the second gear 947b of the fourth gear train.
[0409] The tamper 920 extends through an axial bore of the third gear 947c of the fourth gear train. An interior surface of the axial bore of the third gear 947c of the fourth gear train is threaded. The thread formed in the axial bore of the third gear 947c of the fourth gear train engage with the thread formed on the external surface 920a of the tamper 920 such that, when the third gear 947c of the fourth gear train rotates relative to the tamper 920, the tamper 920 moves longitudinally. The tamper 920 either pushes out of the housing 949 or retracts into housing 949 depending on the direction of rotation of the third gear 947c of the fourth gear train.
[0410] The tamper motor configured to drive tamper 920 is operatively coupled to the controller of the beverage machine 200. As explained further herein, the controller is configured to operate the tamper motor to adjust the position of the tamper 920 during a brewing process.
[0411] A pair of spring-loaded clamps 945a, 945b can extend from bottom edges of the housing 949 (FIGS. 9A-9B) . Each clamp can be configured to engage with one of the recesses 810i in the outer sidewall of the brew basket 810 (see FIG. 8F) . In some implementations, as shown in FIG. 9B, one end of each of the clamps 945a, 945b can be coupled to the tamper 920. Extension and retraction of the tamper 920 can cause the clamps 945a, 945b to move between a first position, in which the clamps 945a, 945b are configured to engage the recesses 810i to constrain the tamper 920 relative to the brew basket, and a second position, in which the clamps 945a, 945b are configured to disengage from the recesses 810i. In some implementations, the brew basket 810 can include at least one, at least two, at least three, at least four, or at least five recesses 810i, and the tamper 920 can include at least one, at least two, at least three, at least four, or at least five clamps for engaging with the recesses 810i.
[0412] The tamper 920 includes a bottom surface 920b in which a plurality of through-holes are formed. The bottom surface 920b is circular in shape and has substantially the same radius as the brew basket 820. Extending longitudinally from the bottom surface 920b along the length of the tamper 920 is a fluid channel 920c. The fluid channel 920c is fluidically coupled to the beverage outlet 224 of the beverage machine 200 at an upper end. Fluid that passes through the through-holes in the bottom surface 920b is configured to be drawn into the fluid channel 920c and delivered to the outlet 224. In this illustrated implementation, the hopper 202, the grinder 708, and the bypass chute 712 are arranged near to the rear portion 200d of the beverage machine 200 and the tamper 920 is arranged near the front portion 200c of the beverage machine 200. The brew basket 810 is arranged below and between the hopper 202, the grinder 708, and the bypass chute 712 and the tamper 920.
[0413] The brew basket 810, together with the tamper 920, form a brewer that is configured to produce a brewed beverage (e.g., a coffee beverage) from water from the water reservoir 214 and ground coffee received from either the grinder 708 or the bypass chute 712. As described herein, the brew basket 810 and the tamper 920 are configured to be movable during a brewing process. As shown in FIGS. 10A-10F, the controller is configured to cause the brew basket 810 to move relative to the hopper 202, the grinder 708, and the bypass chute 712 and the tamper 920 to facilitate different stages of the brewing process.
[0414] In FIG. 10A, the brew basket 810 is arranged to receive ground coffee that is delivered from either the grinder 708 or the bypass chute 712 through the outlet 721. The open upper end of the brew basket 810 is aligned with the outlet 721 so that the ground coffee falls from the outlet 721 into an interior region of the brew basket 810. The plunger 841 is arranged adjacent to the bottom surface of the brew basket 810. The tamper 920 is in a retracted configuration.
[0415] In FIG. 10B, the controller of the beverage machine 200 has caused the brew basket 810 to pivot and be pushed diagonally upward such that the open upper end thereof is aligned with the tamper 920. In this position, the brew basket 810 is arranged to receive water through the channel 810f in the bottom surface thereof. Water received by the brew basket 810 mixes with ground coffee delivered to the brew basket 810 through the outlet 721.
[0416] While the brew basket 810 is aligned with the tamper 920 as shown in FIG. 10B, the controller of the beverage machine 200 is configured to extend the tamper 920 relative to the brew basket 810 such that it passes through the open upper end of the brew basket 810 and into the interior region of brew basket 810 (FIG. 10C) . As the tamper 920 pushes into the brew basket 810, pressure is generated in the interior region of the brew basket 810. The pressure generated by the tamper 920 in the brew basket 810 is configured to extract coffee from the mixture of coffee grounds and water contained in the brew basket 810.
[0417] In FIG. 10D, the controller of the beverage machine 200 has caused the tamper 920 to move relative to the brew basket 810 to retract from the brew basket 810. As the tamper 920 retracts, negative pressure is generated in the interior region of the brew basket 810, causing fluid (e.g., coffee) contained in the brew basket 810 to be drawn through the bottom surface 920b of the tamper 920 and into the fluid channel 920c within the tamper 920.
[0418] In FIG. 10E, the controller of the beverage machine 200 has cause the brew basket 810 to begin pivoting away from the tamper 920, and the plunger 841 has pressed upward through the brew basket 810. In the illustrated implementation, the plunger 841 is mechanically driven by the pivoting of the brew basket 810 back to its starting position beneath the outlet 721 (FIG. 10A) . The motion of the plunger 841 is configured to force used coffee grounds that remain in the brew basket 810 after the tamper 920 retracts toward the open upper end of the brew basket 810.
[0419] In FIG. 10F, the controller of the beverage machine 200 has caused the brew basket 810 to pivot beneath the frame 810a. As the brew basket 810 moves beneath the frame 810a, an edge of the frame 810a scrapes over the open upper end of the brew basket 810 across an upper surface of the plunger 841. The scraping of the frame 810 across the plunger 841 is configured to push used coffee grounds ejected from the brew basket 810 by the plunger 841 toward the inclined surface 810b. The inclined surface 810b is in turn configured to cause used coffee grounds to slide into the container 370 in the base 254 of the beverage machine 200 (see FIGS. 3A-3B) .
[0420] FIGS. 11A-11D illustrate another example beverage machine implementation 1100. FIGS. 12A-20D illustrate various components of the beverage machine 1100. The beverage machine 1100 is generally configured and used similarly to the beverage machine 100A of FIG. 1A and the beverage machine 200 of FIG. 2 and includes components like those discussed above. In FIGS. 11A-20D, reference numerals like those in FIGS. 2-10F indicate like features between the beverage machine 1100 and the beverage machine 200. Like features will not all be described again in detail.
[0421] The beverage machine 1100 includes a top portion 1100a, a bottom portion 1100b, a front portion 1100c, a rear portion 1100d, and a pair of opposed side portions 1100e, 1100f. The beverage machine 1100 is generally box-shaped, though it will be appreciated by those skilled in the art that other geometric configurations are possible.
[0422] The beverage machine 1100 includes a housing 1152 configured to house internal components of the beverage machine 1100 and to support external components of the beverage machine 1100. The housing 1152 includes a base 1154 that defines the bottom portion 1100b of the beverage machine 1100 and is configured to be positioned on a support surface such as a countertop or a table. A pair of water / beverage outlets 1124 extend from an interior volume defined by the housing 1152 to a region exterior to the housing 1152 on a front portion 1100c of the beverage machine 1100. A user interface 1136 can be connected to the front portion 1100c of the beverage machine 1100.
[0423] The base 1154 includes a region that protrudes from the front side 1100c of the beverage machine 1100 to form a drip tray. Disposed over an upper portion of the drip tray region is a removable plate 1156 that includes a plurality of through-slots 1156a (FIG. 11C) . The removable plate 1156 is configured to support a user’s beverage container above the drip tray region and beneath the outlets 1124. The plurality of through-slots 1156a are configured to allow fluid waste to flow into the drip tray region.
[0424] A pair of support surfaces 1150a, 1150b are attached to the front portion 1100c beneath the outlets 1124. Each support surfaces 1150a, 1150b are movable, e.g., foldable, between a first position, in which the support surface extends distally outward from the housing 1152, and a second position, in which the support surface is flush against the housing 1152. The support surfaces 1150a, 1150b are configured to be moved to the first position to support a beverage container beneath the outlets 1124 and above the drip tray region and to be moved to the second position to provide space for larger beverage containers to be supported on the cover plate 1156. The support surfaces 1150a, 1150b can each include a plurality of through-slots 1150c configured to allow fluid waste to flow into the drip tray region.
[0425] As shown in FIG. 11C, the side portion 1100e of the housing 1152 can define a recess that is configured to receive a removable water reservoir 1114. A lower surface of the recess can include a water inlet 1162 that is configured to fluidically couple to a water outlet of the water reservoir 1114 when the reservoir 1114 is inserted into the recess.
[0426] The side portion 1100f of the housing 1152 can include an access door 1152a (FIG. 11B) . The access door 1152a can be configured to provide access to the interior components of the beverage machine 1100, e.g., to enable interior components of the beverage machine 1100 to be removed and / or cleaned.
[0427] The front portion 1100c of the base 1154 can include a milk frothing platform 1167 (FIG. 11D) . The milk frothing platform 1167 can be configured to support a milk jug 1161 that is configured to contain milk (or a milk replacement product) therein. A steam wand 1171 can be arranged above the milk frothing platform 1167. The steam wand 1171 can be configured to produce and direct steam into the milk jug 1161 when the milk jug 1161 is placed on the milk frothing platform 1167.
[0428] The milk jug 1161 is illustrated as a standalone element in FIG. 12A. FIG. 12B provide cross-sectional views of the milk jug 1161 and the milk frothing platform 1167. As shown in FIG. 12A, the milk jug 1161 can include a bottom surface 1161a, a main body 1161b, and a handle 1161c. The bottom surface 1161a and the main body 1161b of the milk jug 1161 can together define a cavity that is configured to hold milk therein and can include a spout portion 232d configured to facilitate pouring contents out of the cavity. An exterior of the main body 1161b can include fill lines 1161e, 1161f, 1161g that are configured to indicate milk fill levels for different types of beverages. The fill lines 1161e, 1161f, 1161g may also be visible in an interior of the milk jug 1161, e.g., within the cavity defined by the main body 1161b. In this illustrated implementation, the fill lines 1161e, 1161f, 1161g are each an indented ring extending around a circumference of the main body 1161b. However, the fill lines can have other configurations, e.g., printed lines on the milk jug 1161, lines embossed in the milk jug 1161, etc.
[0429] As shown in FIGS. 12A-12C, a mechanical whisk 1263 can be arranged inside of the cavity defined by the main body 1161b on the bottom surface 1161a. The mechanical whisk 1263 can be configured to rotate within the cavity of the milk jug 1161 to aerate milk contained in the milk jug 1161. The whisk 1263 includes an agitator 1263a that surrounds an outer edge of a rotatable whisk driver base 1263b that is configured to rotate about a central post 1263d. The whisk driver base 1263b can contain one or more magnets 1263c that are arranged circumferentially around the central post 1263d.
[0430] When the milk jug 1161 is placed on the milk frothing platform 1167, the magnets 1263c can magnetically couple to one or more magnets 1265a contained in an interior region of the platform 1167 (FIG. 12B) . The magnets 1265a can be connected to a rotatable platform 1265b that is configured to be rotated by a motor 1265c. Rotation of the platform 1265b by the motor 1265c can cause the magnets 1263c in the whisk 1263 to rotate due to the magnetic coupling between the magnets 1263c in the whisk 1263 and the magnets 1265a in the frothing platform 1167.
[0431] The motor 1265c can be operatively coupled to the controller of the beverage machine 1100. The user interface 1136 can be configured to enable a user to operate the motor 1265c to whisk milk that is contained in the milk jug 1161.
[0432] A cross-sectional view of the steam wand 1171 is provided in FIG. 13. As shown, the steam wand 1171 can include a first end 1171a that includes a plurality of steam outlets 1171b. The steam outlets 1171b can be arranged peripherally about a center point of the first end 1171a. A steam tube 1171f can extend through at least a portion of the interior region of the steam wand 1171. Steam emitted by the beverage machine 1100 through the steam tube 1171f can be directed out of the steam wand 1171 through the steam outlets 1171b.
[0433] The steam wand can contain a temperature sensor 1171c (e.g., an NTC thermistor) configured to detect the temperature of milk contained in the milk jug 1161 as the milk is being steamed. The temperature sensor 1171c can be arranged inside a series of caps 1171d, 1171e that isolate the temperature sensor 1171c from the steam tube 1171f. The temperature sensor 1171c can extend through a temperature sensor outlet 1171h in the end portion 1171a of the steam wand 1171. The temperature sensor 1171c can be coupled to the controller of the beverage machine 1100 by a wired connection 1171g.
[0434] Referring again to FIGS. 11A-11C, the beverage machine 1100 can further include a hopper 1102. The hopper 1102 can be removable and can be received in a top portion 1100a of the beverage machine 1100. The hopper 1102 can be configured to contain coffee beans. The top portion 1100a of the beverage machine 1100 can also include an access port 1148.
[0435] The beverage machine 1100 can include a grinder 1408 and a bypass chute 1412, as shown in FIGS. 14A-14B. When the hopper 1102 is connected to the beverage machine 1100 (e.g., as shown in FIGS. 11A-11C) , the hopper 1102 can be arranged above the grinder 1408. The bypass chute 1412 extend outward from the grinder 1408 such that it is arranged beneath the access port 1148.
[0436] FIGS. 15A-15G show various components of the hopper 1102 of the beverage machine 1100. The hopper 1102 can include a container portion 1102a that is configured to receive and contain coffee beans. The container portion 1102a can include a through-hole 1102b. A knob 1102c (FIG. 15D) can be arranged in the through-hole 1102b. The knob 1102c can be mechanically coupled to a cam 1102e (FIG. 15E) . The cam 1102e can be mechanically coupled to one or more pins 1102d. The knob 1102c, cam 1102e, and pins 1102d can together form a locking mechanism for retaining the hopper 1102 to the beverage machine 1100. When the hopper 1102 is connected to the beverage machine 1100, the pins 1102d can engage with the cam 1102e to fasten the hopper 1102 to the beverage machine 1100. Twisting the knob 1102c can rotate the cam 1102e, causing the pins 1102d to disengage from the cam 1102e, thereby releasing the hopper 1102 from the beverage machine 1100 and enabling the hopper 1102 to be removed from the beverage machine 1100.
[0437] The bottom of the container portion 1102a can include an opening 1577. An electromechanical rotor 1506 can be arranged in the opening. The rotor 1506 can be configured to dispense coffee beans from the container portion 1102a of the hopper 1102. The rotor 1506 can include a central hub 1506a (FIG. 15F) and peripheral paddle portion 1506b (FIG. 15G) . The central hub 1506a can include a plurality of slots 1506c that correspond to a plurality of paddles 1581 of the peripheral paddle portion 1506b. The central hub 1506a be disposed atop the peripheral paddle portion 1506b such that the paddles 1581 extend through the slots 1506c.
[0438] FIGS. 16A-16E show various views of the grinder 1408 and the bypass chute 1412 of the beverage machine 1100. The grinder 1408 can include a chamber 1408a configured to receive coffee beans that are dispensed from the hopper 1102. The chamber 1408a can contain a pair of burrs 1615, 1617. The inner burr 1615 can be mechanically coupled to a shaft 1613 which, in turn, is connected to a motor 1409 by a gear train 1611. The controller of the beverage machine 1100 can be configured to operate the motor 1409 to rotate the inner burr 1615 relative to the outer burr 1617 to grind coffee beans received in the chamber 1408.
[0439] A seal 1619 can be connected to an upper edge of the chamber 1408. The seal 1619 can include a plurality of bristle strips. The bristle strips can provide a low-friction, compliant seal that enables the seal 1619 to move relative to other components while preventing debris from entering unwanted areas of the coffee machine. The bristles that make up the seal 1619 can include conductive fibers (e.g., carbon fibers) that reduce static buildup in the seal 1619.
[0440] The grinder 1408 can have a plurality of grind size settings. The grind size setting can be automatically adjusted by an adjustment motor (e.g., an adjustment motor similar to the adjustment motor 725 of the grinder 708 shown in FIG. 7A) that is configured to adjust the size of a gap between the burrs 1615, 1617.
[0441] Ground coffee produced by the grinder 1408 can be output through an outlet chute 1408b that extends from an interior of the grinder 1408 to an outlet 1421. The outlet 1421 is also connected to the bypass chute 1412. The beverage machine 1100 can include a screen or sieve 1421a that is arranged in the outlet 1421 and configured to sift coffee grounds that are passing through the outlet 1421. Additionally, or alternatively, the beverage machine 1100 can include an auger 1421b that is arranged above the outlet 1421 and configured to be driven by a motor. The sieve 1421a and the auger 1421b can prevent the formation of clumps in the coffee grounds that are passing through the outlet 1421 and can ensure the grounds are dispensed uniformly from the outlet 1421. The auger 1421b can be configured to be automatically operated whenever the grinder 1408 is running or whenever the access port 1148 is open.
[0442] As shown in FIG. 17, the beverage machine 1100 can further include a brew basket 1710. The outlet 1421 can be arranged above a brew basket 1710 of the beverage machine 1100. The beverage machine 1100 can also include a tamper 1820, as shown in FIG. 18. The brew basket 1710 and the tamper 1820 can together form a brewer for the beverage machine 1100 that is configured to use ground coffee provided to the brew basket 1710 through the outlet 1421 to brew a coffee beverage. The sieve 1421a and the auger 1421b can provide uniformly distributed coffee grounds to the brew basket, e.g., such that coffee grounds received by the brew basket 1710 form a cylinder with a substantially flat upper surface.
[0443] The brew basket 1710 and the tamper 1820 can, respectively, be substantially similar to the brew basket 810 and the tamper 920 of the beverage machine 200 described above. In particular, the controller of the beverage machine 1100 can be configured to adjust the positions of the brew basket 1710 and the tamper 1820 to facilitate various portions of the brewing process.
[0444] FIGS. 19A-19C show various components of the brew basket 1710. As shown, the brew basket 1710 can include a frame 1710a and a bottom surface 1710c with a central through-hole. A channel 1710f can be formed in the bottom surface 1710c. The channel 1710f can be fluidically coupled to a channel 1710e which, in turn, is fluidically coupled (e.g., by one or more tubes) to the water reservoir 1114 of the beverage machine 1100. Water can be transported into the interior region of the brew basket 1710 through the channels 1710e, 1710f in the bottom surface 1710c. The channel 1710f can include a slanted surface to facilitate efficient water flow.
[0445] In some implementations, the bottom surface 1710c can include reinforcements or reinforcement features (e.g., regions of increased thickness) . These reinforcements or reinforcement features can allow pressures inside the brew basket 1710 to be increased to levels necessary to brew espresso beverages. Additionally, these reinforcements or reinforcement features can allow water to be flushed at pressures higher than used for brewing through the bottom surface 1710c to remove debris from the brewing chamber 1710.
[0446] A plunger 1741 that includes a disk 1741a and a shaft 1741b can be inserted through the central through-hole in the bottom surface 1710c. The disk 1741a can be configured to contain coffee grounds in the brew basket 1710. A sealing ring 1741d can be disposed on a lower outer edge of the disk 1741a to at least partially seal the brew chamber 1710 to mitigate or prevent leaks of coffee grounds and other debris from the brew chamber 1710. The ring 1741d can be arranged beneath the upper surface of the disk 1741a and can extend around a circumference of the disk 1741a. During the brewing process, the plunger 1741 can be configured to be moved upward through the interior region of the brew basket 1710 to eject a coffee ground puck.
[0447] The brew basket 1710, including the plunger 1741, can be coupled to a jointed arm 1773 that is configured to drive movement of the brew basket 1710 and the plunger 1741 between a plurality of positions during the brewing process.
[0448] In some implementations, one or more portions of the brew basket 1710 can be reinforced relative to other portions of the brew basket 1710 to allow pressures inside the brew basket 1710 to be increased to levels necessary to brew espresso beverages. For example, one or more portions of the brew basket 1710 can have a greater thickness than other portions of the brew basket 1710 to reinforce the brew basket 1710. In some embodiments, the brew basket 1710 can have a reinforced (e.g., thicker) water channels 1710e, 1710f, a reinforced (e.g., thicker) bottom surface 1710c, and / or a reinforced frame 1710a.
[0449] FIGS. 20A-20D show various views of the tamper 1820 of the beverage machine 1100. The tamper 1820 can extend through a housing 2049 and can include a threaded external surface 1820a and a bottom surface 1820b. A fluid channel 1820c can extend longitudinally from the bottom surface 1820b within an interior region of the tamper 1820. The fluid channel 1820c can be fluidically coupled to the beverage outlets 1124 of the beverage machine 1100. A seal 1720g can encircle a lower portion of the tamper 1820 adjacent to the bottom surface 1820b.
[0450] Contained within the tamper 1820 can be a sensor 1820e that is configured to detect contact between the bottom surface 1820b of the tamper 1820 and a coffee puck contained in the brew basket 1710. In some implementations, the sensor 1820e is configured to be activated when at least a threshold amount of force (e.g., at least 10 kgf or another amount of force) is exerted on the bottom surface 1820b of the tamper 1820. The threshold amount of force can be a lower limit on an amount of force required to sufficiently tamp coffee in the brew chamber 1710 to ensure production of a quality beverage. The sensor 1820e and the fluid channel 1820c can be fluidically isolated by a wall 1820d. The tamper 1820 can be mechanically coupled to a motor by a gear train 2047.
[0451] A pair of clamps 2045a, 2045b can be coupled to the housing 2049. The clamps 2045a, 2045b can be configured to move between a first position, in which the clamps 2045a, 2045b engage with an outer surface of the brew basket 1710 to constrain the tamper 1820 relative to the brew basket 1710, and a second position, in which the clamps 2045a, 2045b disengage from the outer surface of the brew basket 1710. The movement of the clamps 2045a, 2045b can be controlled by or can occur in response to movement of the tamper 1820. For example, advancement of the tamper 1820 into the brew basket 1710 can be configured to cause dynamic movement of the clamps 2045a, 2045b into corresponding recesses in an outer surface of the brew basket 1710, and retraction of the tamper 1820 away from the brew basket 1710 can be configured to cause dynamic disengagement of the clamps 2045a, 2045b from the brew basket 1710. In some implementations, the clamps 2045a, 2045b can be pivotally connected to the tamper 1820.
[0452] FIG. 21 provides a schematic of a beverage brewing cycle in another implementation of a beverage machine. Specifically, FIG. 21 shows the relative positions of a coffee ground outlet 2121, a brew chamber 2110, a plunger 2141 of the brew chamber 2110 and a tamper 2120 of a beverage machine during various portions of a brewing cycle. The coffee ground outlet 2121 can include features of the coffee ground outlet 721 of the beverage machine 200 (see, e.g., FIGS. 7A-7B) and / or the coffee ground outlet 1421 of the beverage machine 1100 (see, e.g., FIGS. 16B-16D) . The brew chamber 2110 can include features of the brew chamber 810 of the beverage machine 200 (see, e.g., FIGS. 8A-8H) and / or the brew chamber 1710 of the beverage machine 1100 (see, e.g., FIGS. 19A-19C) . The plunger 2141 can include features of plunger 841 of the beverage machine 200 (see, e.g., FIG. 8C) and / or the plunger 1741 of the beverage machine 1100 (see, e.g., FIG. 19C) . The tamper 2120 can include features of the tamper 920 of the beverage machine 200 (see, e.g., FIGS. 9A-9D) and / or the tamper 1820 of the beverage machine 1100 (see, e.g., FIGS. 20A-20D) .
[0453] Components of another implementation of a beverage machine 2200 are shown in FIGS. 22A-22B. The beverage machine 2200 is substantially similar to the beverage machine 1100 described with respect to FIGS. 11A-20D and the beverage machine 200 described with respect to FIGS. 2-10F. In FIGS. 22A-22B, reference numerals like those in FIGS. 2-10F or like those in FIGS. 11A-11D indicate like features. Like features will not all be described again in detail.
[0454] FIG. 22A shows a cross-sectional perspective view of a hopper 2202, a grinder 2208, and a hopper weighing device 2274 of the beverage machine 2200. The weighing device 2274 can be any suitable device configured to bear the entire weight of the hopper 2202, including the weight of any coffee beans contained in the hopper 2202, when the hopper 2202 is connected to the beverage machine 2200. In the illustrated implementation, the weighing device 2274 is a load cell.
[0455] As shown in FIG. 22A, the weighing device 2274 can be mounted on a preloaded spring 2274a. The weighing device 2274 can include a protrusion 2274b that extends through a slot 2274c. The preloaded force on the spring 2274a can correspond to an upper limit on an amount of force that can be applied to the weighing device 2274 by the hopper 2202 without overloading (and potentially damaging) the weighing device 2274. If the force applied by the hopper 2202 is less than the preloaded force on the spring 2274a, the spring 2274a does not compress further than its preloaded compression amount, and therefore supports the weighing device 2274 such that the protrusion 2274b extends above, but not in contact with, a bottom surface 2274d of the slot 2274c. If the force applied by the hopper 2202 exceeds the preloaded force on the spring 2274a (e.g., due to the hopper 2202 being overfilled with coffee beans, or due to a user applying external force to the hopper 2202 while the hopper 2202 is connected to the beverage machine 2200) , the spring 2274a compresses past its preloaded compression amount, causing the weighing device 2274 to move downward so that the protrusion 2274b contacts the bottom surface 2274d of the slot 2274c. The bottom surface 2274d of the slot 2274c functions as a dead stop to prevent additional overloading of the weighing device 2274.
[0456] FIG. 22B shows a cross-sectional view of the interface between the hopper 2202 and the grinder 2208 of the beverage machine 2200. As shown, the hopper 2202 is arranged above a chamber 2208a of the grinder 2208 such that coffee beans dispensed from the hopper 2202 are delivered to the chamber 2208 of the grinder 2208 for grinding. A roller seal 2219 can be disposed on an upper edge of the chamber 2208a adjacent to the hopper 2202. The roller seal 2219 can prevent debris from entering unwanted areas of the machine 2200.
[0457] The structure and use of a brewer are described in further details with reference to the drawings. As shown in FIGS. 23A-23E, a tamping assembly 7 is provided inside a housing of a brewer and performs reciprocating rotation in a particular direction by means of a first motor on a side of an outside diameter of the housing. A brewing chamber plunger 703 reciprocating up and down is provided in a brewing chamber inside the main body 701 of the tamping assembly.
[0458] When a top chamber opening of the brewing chamber of the tamping assembly 7 is rotated to a vertical powder-receiving port on one side of the top portion of the housing, coffee powder falls into the brewing chamber of the tamping assembly 7. When the top chamber opening of the brewing chamber of the tamping assembly 7 is rotated to the oblique hydraulic assembly 4 on the other side of the top portion of the housing, coffee powder inside the brewing chamber of the tamping assembly 7 is compressed into a coffee ground puck inside the brewing chamber by being pushed by a hydraulic assembly 4 while hot water from a boiler flows through the brewing chamber of the tamping assembly 7 into the tamping assembly 7 and is then discharged. A waste disposal hole is provided on one side of the housing below the hydraulic assembly 4. During a process of the tamping assembly 7 resetting to the side of the powder receiving port, the hydraulic assembly 4 leaves the brewing chamber of the tamping assembly 7 and is reset inside the brewing chamber by a plunger spring 704, and the coffee ground puck is pushed by the brewing chamber plunger and discharged from a waste disposal hole. The hydraulic assembly 4 is fixedly arranged in a screw 2. Male threads on the outside diameter of the screw 2 mesh with female threads on an inside diameter of an oblique gear 1. An outer gear rim on the outside diameter of the oblique gear 1 extending beyond the hydraulic assembly 4 meshes with a pinion gear provided at the motor shaft of a second motor. A seal base inside the hydraulic assembly 4 is provided with a liquid discharge channel. A hydraulic joining hole is provided on the top portion of liquid discharge channel of the seal base. A built-in spring is provided between the seal base and the sealing tamping plug. A seal collar is provided on the outside diameter of the sealing tamping plug and the seal base. A seal ring fitted into tamping assembly 7 in a sealing manner is provided on the outside diameter of the tamping plug at a bottom end. The hydraulic assembly 4 has a quadrangular shape. The oblique gear 1 extends beyond four end faces of the hydraulic assembly 4, respectively. A pendulum shaft column 7011 is provided symmetrically protruding on both sides of the outside diameter of the main body 701 of the tamping assembly 7 below brewing chamber. The pendulum shaft column 7011 is secured by snap-fit in a shaft engaging groove on both sides at one end of the brewing bracket 9 on a bottom portion of the tamping assembly 7 in the housing. The pendulum shaft of the first motor is connected by the housing with a shaft socket 901 on a side of the shaft engaging groove of the brewing bracket 9. A shaft pin 902 is provided in symmetry protruding from an inner side of the other end of the brewing bracket 9. The shaft pin of the brewing bracket 9 is inserted into symmetric pin holes on two sides of a lower outside diameter of the brewing chamber of the tamping assembly 7. The tamping assembly 7 and the brewing bracket 9 are connected in one piece to perform reciprocating rotation in a particular direction by means of the pendulum shaft of the first motor. The brewing bracket 9 has a triangular shape. A grounds-pushing plunger 702 is provided in an end corner groove of the main body 701 of the tamping assembly 7 below the brewing chamber on the side of the shaft pin. The shaft portion of the grounds-pushing plunger is secured by snap-fit in an end corner groove of the tamping assembly 7 to perform a pendulum motion. The plunger head 7023 on one end of the grounds-pushing plunger extends into the tamping assembly 7 and is connected by insertion into a rod hole at an end tip of a rod portion on one end of the brewing chamber plunger 703 extending from a bottom portion of the brewing chamber in the tamping assembly 7. The plunger spring 704 is provided on an outside diameter of the rod portion on a bottom portion of the brewing chamber plunger in the brewing chamber.
[0459] The afore-described brewing chamber of the tamping assembly 7 is a brewing chamber with an inside diameter of 52.0 mm, with a maximum load of 39.0 g coffee powder, a free height of 62.0 mm, a minimum height of 25.0 mm after compression, and a maximum height of 46.0 mm after compression. The height of the rod portion of the grounds-pushing plunger is 13.5 mm. The housing comprises a first housing 6 and a second housing 10 arranged on two sides of the tamping assembly 7, and a hydraulic housing 3 arranged on the outside diameter of the hydraulic assembly 4, a powder-receiving cover 5 at the powder-receiving port. The powder-receiving port is provided at the powder-receiving cover 5. The powder-receiving cover 5 on the outside diameter of the powder-receiving port is secured by snap-fit to the first housing 6 and the second housing 10 on the side above the top chamber opening of the brewing chamber in a vertical state of the tamping assembly 7. When the first housing 6, the second housing 10, and the powder-receiving cover 5 are integrally placed into the brewer slot on one side of the coffee machine, a T-shape head on a top portion of the oblique protruding port of the first housing 6 and the second housing 10 is engaged and secured in the T-shape hole 301 in the bottom housing aperture of the hydraulic housing 3 in the coffee machine. The hydraulic assembly 4, the oblique gear 1, and the screw 2 are disposed in the hydraulic housing 3. A scraper 12 is provided in a bottom cover opening of the powder-receiving cover 5 above the top chamber opening of the brewing chamber in the tamping assembly 7. An aperture of the scraper is aligned to the powder-receiving aperture of the powder-receiving cover 5. A protruding scraping edge is provided on a bottom portion of the scraper in a rotation direction of the tamping assembly 7. The scraping edge is higher than the bottom cover opening of the powder-receiving cover 5 while the scraping edge of the scraper abuts the top chamber opening of the brewing chamber in the tamping assembly 7. A waste disposal plate protruding obliquely is provided on the outside diameter of the brewing chamber of the tamping assembly 7 below one side of the scraping edge.
[0460] An Americano water inlet port 7012 and an espresso water inlet port are respectively provided symmetrically on two sides of the outside diameter of the housing. The Americano water inlet port and the espresso water inlet port are respectively in communication with the brewing chamber in the main body 701 of the tamping assembly 7 and the dual liquid discharge channel in the hydraulic assembly 4. A brewing chamber water inlet nozzle 7013 projecting outwards is provided on one side of the bottom portion of the brewing chamber in the tamping assembly 7. Hot water of the boiler flows through the Americano water inlet port and the espresso water inlet port. The bearing hose 8 in the housing is connected with the brewing chamber water inlet nozzle. The other end of the grounds-pushing plunger is provided with a stopping axis 7021 projecting outwards. A stopping column 601 is provided in the housing above the stopping axis 7021. When coffee powder in the brewing chamber of the tamping assembly 7 is compressed by the hydraulic assembly 4 to produce a coffee ground puck, the stopping axis 7021 of the grounds-pushing plunger abuts the stopping column in the housing. A pendulum rod 7022 fitting to an outer diameter of the brewing bracket 9 is provided respectively on two ends of the grounds-pushing plunger snap-fit in the end corner groove of the main body 701. An adjustment hole 602 in an arc shape is provided in the housing on the outer side of the main body 701 corresponding to the pendulum rod 7022. A loading / unloading button 11 is provided on the loading / unloading side of the housing on the outside of the tamping assembly 7. The housing is secured by snap-fit in the brewer slot on one side of the coffee machine by means of the loading / unloading button 11.
[0461] Specific operations of the brewer in the powder receiving state, the powder tamping and brewing state, and the waste disposal state are described subsequently. In the powder receiving state, the first motor is energized to drive the tamping assembly 7 to an initial point such that the chamber opening of the brewing chamber faces vertically upwards. Meanwhile, the brewing chamber plunger in the brewing chamber is driven downwards by the grounds-pushing plunger such that an open accommodating chamber appears in the brewing chamber, ready for receiving powder. This is when the powder receiving operation is completed. In the powder tamping and brewing state, the first motor is energized to drive the tamping assembly 7 to rotate to the side of the hydraulic assembly 4 such that the hydraulic assembly 4 is aligned to the brewing chamber of the brewing chamber plunger; and the second motor drives the screw 2 to move downwards to be engaged. At that time, liquid injected into the hydraulic assembly 4 is converted into a pressure. The coffee powder is pressed pushed by the hydraulic assembly 4 into the brewing chamber. The brewing chamber plunger in the brewing chamber is biased downwards so that a ground puck is produced in the brewing chamber. Next, it is ready to perform coffee extracting and brewing with hot water from the boiler of the coffee machine. This is when the powder tamping and brewing operation is completed. Discharge is performed via the liquid discharge channel of the hydraulic assembly 4. In the waste disposal state, the second motor drives the screw 2 and the hydraulic assembly 4 to reset while the brewing chamber plunger in the brewing chamber pushes the coffee ground puck out during the process of the first motor driving the tamping assembly 7 back to the initial point. The coffee ground puck is blocked by the powder-receiving cover 5 and falls out of the housing from the waste disposal plate, whereby the waste disposal operation is completed.
[0462] As described above, the brewer has an peripheral dimension of 270×90×307 mm, with a double-channel coffee outlet / inlet port, and is suitable for extracting Americano and espresso coffee. The brewing chamber automatically adjusts the stroke by the screw 2 and a hydraulic pressure of the power amount. The powder amount is at least 12 g (espresso) and at most 39 g (Americano) . The detachable brewing assembly facilitates cleaning and is capable of adaptively compressing a solid ground puck with hydraulic pressure, to thereby ensure the quality of each cup of coffee. It is capable of automatically scraping coffee grounds, enabling convenient waste disposal. The coffee grounds are pressurized into a grounds puck with a reduced height of 45 mm. Two sets of motors are used for transmission, attaining to higher speeds and efficiency.
[0463] The subject matter described herein can be implemented in analog electronic circuitry, digital electronic circuitry, and / or in computer software, firmware, or hardware, including the structural means disclosed in this specification and structural equivalents thereof or in combinations of them. The subject matter described herein can be implemented as one or more computer program products, such as one or more computer programs tangibly embodied in an information carrier (e.g., in a machine-readable storage device) , or embodied in a propagated signal, for execution by, or to control the operation of, data processing apparatus (e.g., a programmable processor, a computer, or multiple computers) . A computer program (also known as a program, algorithm, software, software application, or code) can be written in any form of programming language, including compiled or interpreted languages, and it can be deployed in any form, including as a stand-alone program or as a module, component, subroutine, or other unit suitable for use in a computing environment. A computer program does not necessarily correspond to a file. A program can be stored in a portion of a file that holds other programs or data, in a single file dedicated to the program in question, or in multiple coordinated files (e.g., files that store one or more modules, sub programs, or portions of code) .
[0464] The processes and logic flows described in this specification, including the method steps of the subject matter described herein, can be performed by one or more programmable processors executing one or more computer programs to perform functions of the subject matter described herein by operating on input data and generating output. The processes and logic flows can also be performed by, and apparatus of the subject matter described herein can be implemented as, special purpose logic circuitry, e.g., an FPGA (field programmable gate array) or an ASIC (application specific integrated circuit) .
[0465] Processors suitable for the execution of a computer program include, by way of example, both general and special purpose microprocessors, and any one or more processor of any kind of digital computer. Generally, a processor will receive instructions and data from a read only memory or a random-access memory or both. The essential elements of a computer are a processor for executing instructions and one or more memory devices for storing instructions and data. Generally, a computer will also include, or be operatively coupled to receive data from or transfer data to, or both, one or more mass storage devices for storing data, e.g., magnetic, magneto optical disks, or optical disks. Information carriers suitable for embodying computer program instructions and data include all forms of non-volatile memory, including by way of example semiconductor memory devices, (e.g., EPROM, EEPROM, and flash memory devices) . The processor and the memory can be supplemented by, or incorporated in, special purpose logic circuitry.
[0466] The techniques described herein can be implemented using one or more modules. As used herein, the term “module” refers to computing software, firmware, hardware, and / or various combinations thereof. At a minimum, however, modules are not to be interpreted as software that is not implemented on hardware, firmware, or recorded on a non-transitory processor-readable recordable storage medium (i.e., modules are not software per se) . Indeed “module” is to be interpreted to always include at least some physical, non-transitory hardware such as a part of a processor or computer. Two different modules can share the same physical hardware (e.g., two different modules can use the same processor) . The modules described herein can be combined, integrated, separated, and / or duplicated to support various applications. Also, a function described herein as being performed at a particular module can be performed at one or more other modules and / or by one or more other devices instead of or in addition to the function performed at the particular module.
[0467] One skilled in the art will appreciate further features and advantages of the devices, systems, and methods based on the above-described embodiments. Accordingly, this disclosure is not to be limited by what has been particularly shown and described, except as indicated by the appended claims. All publications and references cited herein are expressly incorporated herein by reference in their entirety for all purposes.
[0468] With reference to the accompanying drawings, the structure and operation of the present disclosure will be further described below. As shown in FIGS. 24 to 34, a milk frothing apparatus comprises a milk reservoir 991 and a milk cartridge, wherein the milk cartridge comprises an upper cover 999 and a lower cover 992; a bottom portion of the milk cartridge is engaged with an opening at a top portion of the milk reservoir; an adjustment mechanism is provided in the milk cartridge and comprises a steam input channel 991101, an air suction channel 99501, a gas-liquid suction channel 99502, and a milk foam output channel 99503, with the four channels in communication with one another; a suction pipe 993 of the adjustment mechanism in the milk cartridge extends into the milk reservoir, and is connected to the gas-liquid suction channel of the adjustment mechanism through a suction pipe connector 994; an end of a steam joint 9911 provided on a side of the adjustment mechanism where the steam input channel is located extends out of the milk cartridge; an air intake valve 997 on a side of the adjustment mechanism where the air suction channel is located is connected to an air intake knob 9910 at a top portion of the milk cartridge; the air suction channel is in commutation with an air pressure small hole 99701 of the air intake valve; and a milk outlet pipe 996 provided on a side of the adjustment mechanism where the milk foam output channel is located extends out of the milk cartridge. A main body of the adjustment mechanism is a four-way valve body 995, which is fixedly provided in the milk cartridge; in a main channel at one end of the valve body, there is provided the steam joint of which the other end is inserted into and fixed in the valve body through a conical boss at the end of the steam joint; on both sides of the boss of the steam joint, triangular notches 991102 are symmetrically provided; while the steam input channel of a central hole at the boss of the steam joint is aligned with the milk foam output channel in the main channel of the valve body, an channel clearance 99504 is provided between the steam input channel of the steam joint and the milk foam output channel of the valve body; above the steam inlet channel of the steam joint, the air suction channel is provided in the main channel of the valve body, and below the steam input channel of the steam joint, the gas-liquid suction channel is provided in the main channel of the valve body; and a connection between the steam joint and the valve body, a connection between the suction pipe connector and the valve body, and a connection between the milk outlet pipe and the valve body are each provided with a double-layer sealing ring. The gas-liquid suction channel below the air suction channel in the main channel of the valve body is vertically offset and eccentrically arranged on the milk foam output channel; the orifice at the gas-liquid suction channel of the valve body is elongated; a special-shaped orifice 99401 is provided on the circular top end face of the suction pipe connector at the gas-liquid suction channel of the valve body; the special-shaped orifice of the suction pipe connector is eccentrically provided on a side of the suction pipe connector where the circular top end face is located, and the special-shaped orifice is arc-shaped and enlarges from one end to the other end; and a raised adjustment lug 99402 is provided on a side of the suction pipe connector extending out of a bottom portion of the valve body. A through transverse hole 99403 is provided in a middle of the suction pipe connector at a sleeved joint between the suction pipe connector and a chamber below the gas-liquid suction channel of the valve body, and the special-shaped orifice located above inside the transverse hole is offset from a suction pipe orifice below.
[0469] A rocker latch button 998 is provided in the milk cartridge; one end of the rocker latch button is hingedly fixed to a pin 99201 at a top portion in the lower cover of the milk cartridge; a snap-in hook 99801 at the other end of the rocker latch button extends out of the upper cover of the milk cartridge; a raised pressing head 99802 is provided on a side of the rocker latch button with a middle arched portion; the pressing head of the rocker latch button extends out of a button hole on a side of the upper cover of the milk cartridge; the milk covers are fixed to a hook groove on a side of a machine body by the snap-in hook of the rocker latch button; and the side of the rocker latch button with the middle arched portion is arranged on an outer side of the valve body in the milk cartridge. A raised rectangular groove is provided on an outer diameter of the upper cover of the milk cartridge at the snap-in hook of the rocker latch button; and the snap-in hook of the rocker latch button is aligned with an opening on a side of the upper cover of the milk cartridge where the rectangular groove is located. The snap-in hook of the rocker latch button and the rectangular groove of the upper cover of the milk cartridge are arranged on a side of the upper cover of the milk cartridge above the steam joint; and an end of the steam joint extending out of the milk cartridge has an isosceles trapezoidal head.
[0470] The milk reservoir and the milk cartridge are correspondingly rectangular in shape; and the steam joint is arranged on a short side of the milk cartridge, and the milk outlet pipe is arranged on a long side of the milk cartridge. The steam joint extends out of the lower cover of the milk cartridge in the milk reservoir and a semicircular opening on a side corresponding to an opening at a top portion of the milk reservoir; a circular ring is provided on a side of a bottom portion of the lower cover of the milk cartridge where the steam joint extends out; as the steam joint extends into the main channel of the valve body through the circular ring of the lower cover of the milk cartridge, a locking post 991103 protruding from a side of an outer diameter of the steam joint is screwed and snap-fitted into a locking hole at a bottom portion of a spiral groove through an opening of the spiral groove at an orifice on a side of the main channel of the valve body. The milk outlet pipe extends in an L-shape through a pipe hole in a groove on a side of the lower cover of the milk cartridge, out of a U-shaped opening on a side of the opening at the top portion of the milk reservoir; and the U-shaped opening of the lower cover of the milk cartridge corresponds to an upper U-shaped opening at a cover opening of the upper cover of the milk cartridge and an inner U-shaped groove at a top portion of a groove of the lower cover of the milk cartridge. The milk outlet pipe comprises an L-shaped pipe seat 99601 and an oblique pipe head 99602 with one end tilted up, and a connection between the L-shaped pipe seat and the oblique pipe head of the milk outlet pipe is provided with a post portion and a groove of symmetrical convex ribs on both sides of an annular ring, and a special-shaped gasket 99603 of a corresponding shape.
[0471] Positioning ribs 991001 are symmetrically provided on both sides of a knob sleeve at a bottom portion of the air intake knob; while the positioning ribs of the air intake knob are inserted corresponding to positioning grooves on inner diameters of two sides on a knob hole at a top portion of the upper cover of the milk cartridge, the knob sleeve of the air intake knob is inserted into the air intake valve 997; an inner wall of the air intake valve is provided with a spiral air intake groove 99702; a strip groove 991002 is provided on a side of an outer diameter of the knob sleeve at the bottom portion of the air intake knob corresponding to the air intake groove; limiting blocks 99703 larger than the knob hole at the top portion of the upper cover of the milk cartridge are provided on both sides of an opening at a top portion of the air intake valve; and the limiting blocks of the air intake valve are snap-fitted and fixed to block holes on both sides of an opening at a top portion of the valve body. Integrally formed limiting ribs 991003 are symmetrically provided on both sides of a bottom annular groove above the knob sleeve of the air intake knob; and a raised limiting post is provided on an outer side of the knob hole at the top portion of the upper cover of the milk cartridge corresponding to the bottom annular groove of the air intake knob; and the annular groove of the air intake knob is inserted into the limiting post of the upper cover of the milk cartridge.
[0472] When in use, the milk reservoir is opened and the milk cartridge is taken out. By adjusting the minimum flow diameter of the suction pipe via the adjustment lug on the suction pipe connector, the user can choose between cold milk or hot milk extraction methods (the larger the flow diameter is, the more the refrigerated fresh milk passes through per unit flow diameter, and the closer the temperature of the milk being frothed is to that of the refrigerated fresh milk; conversely, the smaller the flow diameter is, the less the refrigerated fresh milk passes through per unit flow diameter, and the closer the temperature of the milk being frothed is to that of the hot milk) . Next, as the steam joint of the milk frothing apparatus is inserted into the steam interface fixed to the machine body, the milk reservoir and milk cartridge are fixed to a side of the machine body through the snap-in hook of the rocker latch button and the protrusion at this location. By turning the air intake knob to unlock and adjust the air intake intensity, the milk inside the milk reservoir can be directly extracted, or extracted after being mixed with hot water. During milk refilling process, the pressing head of the rocker latch button is pressed to take out the milk reservoir and milk cartridge; then, the milk reservoir is opened and refrigerated fresh milk is poured into the milk reservoir; and after the milk reservoir is put back to the milk cartridge, the milk reservoir and the milk cartridge are attached to the side of the machine body.
[0473] As shown in FIGS. 35 and 36, the shapes of the elongated orifice at the gas-liquid suction channel and the special-shaped orifice of the suction pipe connector, which are respectively used as a movable orifice and a stationary orifice, are not limited to those described above, as long as they satisfy the following requirement: the relative motion between the movable orifice and the stationary orifice allows for adjusting the change of the minimum flow area along the axial direction between the gas-liquid suction channel and the air suction channel.
[0474] In summary, the present disclosure provides a solution capable of producing both cold and hot milk foam using only a single milk cartridge assembly, thereby reducing user operational complexity and lowering overall system costs. The milk frothing apparatus comprises a steam input channel, an air suction channel, a gas-liquid suction channel, and a milk foam output channel, with the four channels in communication with one another. The milk frothing apparatus comprises an adjustment mechanism serving as a valve body, which is configured to adjust the minimum flow area of the gas-liquid suction channel. At least two specifications of the minimum flow areas are achieved through the adjustment mechanism to match the optimal gas-liquid suction channels required for producing cold and hot milk foam.
[0475] With reference to the accompanying drawings, the structure and operation of the present disclosure will be further described below. As shown in FIGS. 37 to 42, the device comprises a brewing base assembly 881 and a brewing head assembly, wherein both sides of a top portion of a housing 88101 of the brewing base assembly are symmetrically provided with a coffee grounds receiving port and a brewing port; inside the housing of the brewing base assembly, a barrel body 88102 that rotates via a barrel base 88104 is provided; at an inner bottom portion of the barrel body, a spent grounds discharge push rod 88103 that moves up and down is provided; the spent grounds discharge push rod is driven to move up and down by a push rod motor on a side of an outer diameter of the housing of the brewing base assembly, or the spent grounds discharge push rod is caused to move up and down by rotation of the barrel base driven by a barrel rotating motor on a side of the outer diameter of the housing of the brewing base assembly; one end of the push head 884 of the brewing head assembly is connected, via a pin, to one end of a screw rod 885 inside a sleeve 886 to form a tamping push rod; the other end of the screw rod extends out of the sleeve and connects to a shaft sleeve of a motor gear assembly 889; on both sides of an outer diameter of the sleeve, locking hooks 887 are symmetrically provided; middle portions of the locking hooks are fixed to both sides of the sleeve via swing shafts, respectively; torsion springs are provided at the swing shafts of the locking hooks, respectively; an end of the locking hook extends out of a side of the sleeve where the brewing base assembly is located; raised buckle ribs 881021 are symmetrically provided on both sides of an outer diameter of a barrel mouth of the barrel body in the housing corresponding to the locking hooks; and when the barrel body in the housing of the brewing base assembly is aligned with the push head of the brewing head assembly, the sleeve causes the locking hooks to move toward the brewing base assembly until the locking hooks engage with the buckle ribs of the barrel body for sealed locking, and the motor gear assembly and the screw rod push the push head of the brewing head assembly downward to be hermetically inserted into the barrel body.
[0476] An end face of the other end of the push head is provided with a filter screen mesh; one liquid outlet hole 88401 or symmetrically arranged liquid outlet holes 88401 is or are provided in the push head on a side of the end face; an opening on a side of the push head at the liquid outlet hole is provided with a pipe connection groove; the opening of the pipe connection groove corresponds to an external connection hole on a side of the sleeve; a hose is connected to the liquid outlet hole of the push head through the external connection hole of the sleeve and the pipe connection groove of the push head; and the screw rod is connected to the push head through a pin in the pipe connection groove. The other ends of the locking hooks are each curved upwards towards the sleeve to form an arched protrusion; open positioning slots 88601 are provided on both sides of the corresponding sleeve, respectively; side plates 888 are symmetrically provided on the outer diameter of the sleeve on both sides of the locking hooks, respectively; and when the push head is retracted into the sleeve, the arched protrusions of the locking hooks engage with the positioning slots of the sleeve. The barrel body, locking hook, screw rod, sleeve, or push head are each equipped with a corresponding microswitch, which provides real-time monitoring when the barrel body, locking hook, screw rod, sleeve, or push head reaches the tamping position or corresponding positions.
[0477] A gear motor 88901 of the motor gear assembly is vertically arranged on a side of the outer diameter of the sleeve; a motor shaft of the gear motor is meshed and connected with the screw rod through internal threads of a central hole of an output gear of the gear assembly, or through external threads of the output gear of the gear assembly. A barrel lid assembly 882 is provided above a side of the coffee grounds receiving port at the top of the housing of the brewing base assembly; a lid hole of the barrel lid assembly is aligned with the coffee grounds receiving port; a coffee grounds scraping plate 88201 with a U-shaped opening is provided in the barrel lid assembly, and a coffee grounds scraping shaft 88202 is provided at an open end of the coffee grounds scraping plate. A downwardly inclined and protruding spent grounds discharge plate 88105 is provided on the outer diameter of the housing of the brewing base assembly at a side where the opening of the spent grounds discharge channel is located. An assembly and disassembly button is provided on a side of the outer diameter of the housing of the brewing base assembly, and the brewing base assembly is fitted into and fixed in the groove with an opening on a side of the machine body through the assembly and disassembly button. A water inlet hole 881022 is provided at a bottom corner of the barrel body of the brewing base assembly at a side where the opening of the spent grounds discharge channel is located; and the water inlet hole is connected to a pipe connection hole 881011 with a raised outer diameter on a side of the housing through a hose.
[0478] As shown in FIG. 43, the outer diameter of the sleeve is provided with a head sleeve assembly 8810; inside a housing 881001 of the head sleeve assembly, there is a provided a threaded sleeve 881002 that is integrally connected with the sleeve; external threads on an outer diameter of the threaded sleeve are provided with a gear 881003; while a gear ring on the outer diameter of the gear extends out of the housing, the gear ring on a side of the gear meshes with a transmission gear of a drive motor; and the head sleeve assembly is integrally connected with the brewing base assembly, or the head sleeve assembly and the brewing head assembly are integrally arranged in a groove with an opening on a side of the machine body.
[0479] The operation of the device in grounds-receiving, tamping and brewing, and spent-grounds-discharge states is as follows: in the grounds-receiving state, the barrel rotating motor, upon energization, drives the barrel body of the brewing base assembly back to its origin point, with the barrel mouth vertically upward aligning with the coffee grounds receiving port of the housing; and simultaneously, the push rod motor or barrel rotating motor, upon energization, drives the spent grounds discharge push rod of the brewing base assembly back to its origin point, creating an open cavity within the barrel body ready for grounds receiving, thus completing the grounds-receiving operation. In the tamping and brewing state, the barrel rotating motor, upon energization, drives the barrel body of the brewing base assembly to a side of the brewing head assembly, with the barrel mouth vertically upward aligning with the brewing port of the housing; and while a gear motor drives the screw rod to move downward, causing the sleeve to move the locking hooks towards the brewing base assembly until the locking hooks engage and seal tightly with the buckle ribs of the barrel body, the end face of the sleeve abuts against the barrel mouth of the brewing base assembly to form a seal; and as the push head is pressed into the barrel body, the spent grounds discharge push rod of the brewing base assembly moves upward, tamping the coffee grounds in the barrel body into a puck, after which waiting for hot water from a boiler of the coffee machine for coffee extraction and brewing. In the spent-grounds-discharge state, while the barrel rotating motor drives the barrel body of the brewing base assembly back to its origin point and the gear motor drives the screw rod, the push head, and the sleeve back to their origin points, the locking hooks disengage from the buckle ribs on the barrel body of the brewing base assembly; and the push rod motor, upon energization, drives the spent grounds discharge push rod of the brewing base assembly to push the spent coffee puck out of the barrel body, and the spent coffee puck then falls out of the housing through the spent grounds discharge plate, completing the spent grounds discharge operation. The above structure may optionally omit the push rod motor, and the barrel rotating motor can drive the spent grounds discharge push rod of the brewing base assembly to move up and down, achieving both tamping and spent grounds discharge.
[0480] As shown in FIG. 44, raised limiting posts 881023 are symmetrically provided on both sides of the barrel body of the brewing base assembly below the buckle ribs; and when the locking hooks are buckled and tightly locked with the buckle ribs of the barrel body, the barrel body continues to be lifted and extended through the rotation of the barrel base, and the limiting posts of the barrel body are abutted and limited at the brewing port on the top of the housing. In the grounds-receiving state, upon energization of the motor, a brewing chamber of the barrel body returns to the grounds-receiving state through the rotation of the gear and the barrel base, where it remains ready to receive coffee grounds, thereby completing the grounds receiving operation. In the tamping and brewing state, upon energization of the motor, the brewing chamber of the barrel body is turned towards an upper piston (push head) position through the rotation of the gear and the barrel base. Then, the motor at the upper piston drives the screw rod and push head, causing the upper piston to move downward. The push rod at the barrel base drives a lower piston (spent grounds discharge push rod) in the barrel body to move upward, tamping the coffee grounds in the brewing chamber in the barrel body into a coffee puck. Finally, hot water from the boiler flows into the brewing chamber for coffee extraction and brewing, thus completing the tamping and brewing operation.
[0481] In summary, conventional coffee machine brewers are structurally limited to using a maximum of 14g of coffee grounds with brewing chamber diameters under 46 mm, and cannot withstand water pressure of 10 bar, resulting in suboptimal coffee quality. The device of the present disclosure uses 18-22g of coffee grounds, has a brewing chamber with a diameter of over 52 mm, and produces standard Italian-style coffee under a brewing pressure of 9 to 13 bar, effectively resolving the above limitations. The large-capacity brewing chamber inside the barrel body of the device of the present disclosure is not easily damaged under the pressure applied by the screw rod and push head. The use of the locking hook structure allows the device to better withstand pressure during operation.
[0482] With reference to the accompanying drawings, the structure and operation of the present disclosure will be further described below. As shown in FIGS. 45 to 50, the mechanism comprises a bean box assembly 771, a bean grinding assembly 772, and a weighing module 773; one bean box assembly or two symmetric bean box assemblies is or are provided above the bean grinding assembly; the weighing module is arranged at a lower edge of a bean chamber of the bean box assembly through a weighing module bracket; weighing sensors are provided in the weighing module below the bean chamber of the bean box assembly; a bean sweeping gear in the bean chamber of the bean box assembly is driven to rotate by an output shaft of a bottom synchronous motor to dispense beans; during a bean dispensing process, coffee beans enter a grinding blade of the bean grinding assembly through a bean dispensing channel of the bean grinding assembly to be ground; after the coffee beans are ground, coffee grounds are discharged through a coffee grounds outlet channel of the bean grinding assembly; the grinding blade comprises an upper cone blade assembly and a lower cone blade assembly, with a cone blade adjustment disc 774 provided on an outer diameter of the lower cone blade assembly of the bean grinding assembly; the cone blade adjustment disc is driven to rotate by means of meshing between transmission gears at a stepper motor 775 on a side and teeth of an outer diameter gear ring of the cone blade adjustment disc; the transmission gears comprise a first transmission gear and a second transmission gear to drive the upper cone blade assembly in the cone blade adjustment disc to move up and down to adjust a grinding spacing between an upper cone blade of the upper cone blade assembly and a lower cone blade of the lower cone blade assembly; and the lower cone blade in the lower cone blade assembly is driven to rotate by a bean grinding motor. An arc-shaped convex point is provided on a side of an outer diameter of a bottom portion of the cone blade adjustment disc; at least one microswitch 776 is provided on the bean grinding assembly corresponding to the arc-shaped convex point; the microswitch, the stepping motor, and the weighing sensors of the weighing module are connected to a circuit board of a control panel via wiring; the control panel is provided with bean grinding weight selection buttons and coarseness adjustment gear buttons; the control panel controls the synchronous motor to rotate clockwise or counterclockwise through a program; and when the arc-shaped convex point of the cone blade adjustment disc triggers one of the microswitches, the cone blade adjustment disc of the bean grinding assembly is at a zero gear position; the cone blade adjustment disc of the bean grinding assembly automatically detects and seeks the zero gear position through the stepper motor upon powering on the machine; the cone blade adjustment disc is adjusted to the finest position by the stepper motor, which is set to be the initial zero gear position. The control panel is provided with a gear zeroing button at the coarseness adjustment gear buttons, and a coffee grounds quantity zeroing button is provided at the bean grinding weight selection buttons of the control panel; and the control panel is provided with a weighing / gear position display and a control program display which comprises grams corresponding to coarse, fine, and zero.
[0483] An adjustment angle range between the teeth of the outer diameter gear ring of the cone blade adjustment disc is 85°, and the gear position changes by 3.4° each time the cone blade adjustment disc is turned, with a total of 25 gear positions. The transmission gears at the stepper motor comprise a first transmission gear at a shaft of the stepper motor and a second transmission gear fixed to the bean grinding assembly; the first transmission gear meshes with the teeth of the outer diameter gear ring of the cone blade adjustment disc through the second transmission gear; and central axes of the first transmission gear, the second transmission gear, and the cone blade adjustment disc, as well as central axes of the stepper motor and a horizontal motor of the bean grinding assembly, are respectively arranged at 90 degrees to one another.
[0484] The mechanism of the present disclosure is a coffee machine operating mechanism that completes the entire process in an intelligent manner. It uses a stepper motor to drive a gear transmission structure to automatically change the gear position for coarseness. It can automatically adjust the coarseness desired for the user solely through program control and also keeps a real-time record of the weight of the coffee beans in the bean chamber.
[0485] During operation, after placing the upper cone blade assembly into the cone blade adjustment disc, the bean box assembly is then placed in position. The cone blade adjustment disc is rotated counterclockwise by 85° to reach the finest position, which is set as the initial gear position. The cone blade adjustment disc automatically detects and seeks the zero gear position upon powering on the machine. Thereafter, the “coarse” button or the “fine” button on the screen can be pressed as needed to adjust the gear position. When the “coarse” button is pressed, the stepper motor drives the first transmission gear to rotate clockwise, and the spacing between the upper and lower cone blades starts to decrease, and drives the second transmission gear and the cone blade adjustment disc to rotate counterclockwise, with each pressing making a counterclockwise rotation of 3.4°, which is regarded as one gear, with a total of 25 gear positions. Similarly, when the “fine” button is pressed, the stepper motor rotates counterclockwise in an opposite direction, and the spacing between the upper and lower cone blades starts to increase. The weighing / gear position display displays weight under normal circumstances, and displays a current gear position during coarseness adjustment.
[0486] When selecting the required weight of coffee beans as needed, for example, 39g of coffee beans, the program-controlled synchronous motor drives the bean sweeping gear to dispense beans. Meanwhile, coffee beans in the bean chamber are swept out from a notch on a side of the bottom of the bean box assembly. The swept coffee beans enter a coffee grounds sweeping chamber of the bean grinding assembly, where the coffee beans are dispensed and ground simultaneously. The horizontal motor drives the lower cone blade and the coffee grounds sweeping gear to rotate. The coffee grounds are swept by the coffee grounds sweeping gear through the coffee grounds sweeping channel and fall into the coffee grounds outlet channel. During the bean dispensing process, the weighing module senses weight changes and displays the weight data changes on the screen. After grinding is completed, the weighing module displays the residual coffee grounds quantity, which can be zeroed by pressing the coffee grounds quantity zeroing button.
[0487] In summary, existing coffee machine products of the same type often fail to return to the zero gear position after starting the machine, which is unfavorable for user operation. Therefore, the mechanism of the present disclosure incorporates more functions. If the arc-shaped convex point on the cone blade adjustment disc does not touch the microswitch after the coffee machine is started, the system defaults to not being in the zero gear position, and the stepper motor starts to drive the transmission gears to make the cone blade adjustment disc rotate clockwise until the arc-shaped convex point of the cone blade adjustment disc touches the microswitch and then stops working, and the gear of the cone blade adjustment disc returns to zero.
[0488] The structure and use of the present disclosure are described in further details with reference to the figures. As shown in Fig. 51 to Fig. 56, the coffee brewer of the mechanism comprises a brew seat assembly 663 and a brew head assembly 661, a powder receiving port and a brew port are arranged symmetrically on both sides of a top portion of the brew seat assembly, a barrel body 669 that rotates by means of a barrel seat 667 is arranged in the brew seat assembly, a lower powder tamping and spent grounds discharge push rod 665 that moves up and down is arranged on a bottom portion in the barrel body, the lower powder tamping and spent grounds discharge push rod is caused to move up and down by a rotation of the barrel seat driven by a barrel rotating motor on a side of outer diameter of the brew seat assembly; when the barrel body inside the brew seat assembly rotates to the brew port on a side of the brew head assembly, the barrel body inside the brew seat assembly is aligned with an upper powder tamping and brew push rod of the brew head assembly, and the upper powder tamping and brew push rod of the brew head assembly presses downwards to be sleeved in the barrel body of the brew seat assembly, a spent grounds discharge channel with an opening is arranged on an outer side of a brew head on a side of the brew seat assembly. A link rod 666 with one end inserted into a chamber in a bottom portion of the barrel body is arranged at an open groove on a side of the bottom portion of the barrel body of the brew seat assembly, a slide hole 66601 at one end of the link rod is hinged, by a pin, with one end of the lower powder tamping and spent grounds discharge push rod extending out of the chamber of the bottom portion of the barrel body while a seal ring and a gasket are arranged at a position where the lower powder tamping and spent grounds discharge push rod extends out of the barrel body, an shaft portion 66602 at one other end of the link rod is snapped and fixed in fastening grooves on both sides of a groove opening of the open groove of the bottom portion of the barrel body, both ends of the shaft portion of the link rod are provided respectively with a side rod 66603 extending and protruding towards a side of a spent grounds pouring channel, side rods of the link rod are located above side rods of the barrel seat protruding in an L shape on both sides, projection posts 66701 on an inner side of the side rods are respectively inserted into chutes 66901 on both sides of the open groove of the bottom portion of the barrel body, bends on both sides of the barrel seat are snapped and fixed to shaft posts 66902 on an outer diameter on both sides of the barrel body above the chutes, the both sides of the barrel seat are connected at one other end to form a U shape and located on an outer side of the barrel body, shaft holes for the barrel rotating motor are arranged respectively on both sides of a snap-fit end of the bends of the barrel seat, a motor shaft of the barrel rotating motor is sleeved into the shaft holes in the barrel seat through a first housing 664 or a second housing 668; the link rod, the barrel seat, and the barrel body of the brew seat assembly are arranged in a housing formed between the first housing and the second housing, projecting swing shafts 66903 are arranged symmetrically on both sides of the barrel body above the shaft posts, the swing shafts of the barrel body are respectively inserted into a first rotation groove 66401 and a second rotation groove on an inner side of the first housing and the second housing.
[0489] A guide post 66905 projecting downwards is arranged symmetrically in the open groove of the bottom portion of the barrel body, the pin passes through openings on both sides of the guide post at a connection between a U-shape opening at one end of the link rod and the lower powder tamping and spent grounds discharge push rod, flat key faces are arranged symmetrically on both sides of the lower powder tamping and spent grounds discharge push rod extending out of the open groove of the bottom portion of the barrel body, the flat key faces on both sides of the lower powder tamping and spent grounds discharge push rod abut on an inner side face of the U-shape opening of the link rod through the openings on both sides of the guide post. A stopping shaft 66604 is arranged to project outwards on an end of the shaft portion of the link rod. When the barrel body of the brew seat assembly rotates to the powder receiving port, the stopping shaft of the link rod abuts against a stopping portion in the brew seat assembly.
[0490] A water inlet port 66906 is arranged on a side of the spent grounds pouring channel of the bottom portion of the barrel body, the water inlet port is connected with a tube orifice on a side of the brew seat assembly through a hose 6610. A screw rod 66101 on one end of the upper powder tamping and brew push rod of the brew seat assembly extends out of a motor gear assembly 66102 through a sleeve body 66103, a motor shaft of a gear motor 66104 on a side of outer diameter of the sleeve body is connected with a drive gear in a gear assembly, the screw rod is connected with inner threads of a central hole of an output gear in the gear assembly. A spent grounds pouring plate 66904 that inclines and projects downwards is arranged on an outer diameter of a through hole of the barrel body of the brew seat assembly on a side of the spent grounds pouring channel. A scraper assembly 662 is arranged above a top portion of the brew seat assembly on a side of the powder receiving port, a cover hole of the scraper assembly is aligned with the powder receiving port, a scraper is arranged in a barrel cover assembly. A beam of a raised height is arranged between the first housing and the second housing above the brew seat assembly on a side of the scraper assembly on a side of the spent grounds pouring channel.
[0491] Specific operations of the mechanism in a powder receiving state, a powder tamping and brew state, and a spent grounds discharge state are described subsequently. In the powder receiving state, the barrel rotating motor is energized and then drives the barrel body of the brew seat assembly to return to a point of origin where the barrel opening of the barrel body faces vertically upwards and is aligned with the powder receiving port of the housing. Meanwhile, the barrel rotating motor continues to rotate and drives the link rod to move in association through the barrel seat, such that the lower powder tamping and spent grounds discharge push rod of the brew seat assembly returns to a point of origin and an open-type accommodation cavity is formed in the barrel body, waiting to receive powder. The powder receiving action is completed here. In the powder tamping and brew state, the barrel rotating motor is energized to move the barrel body of the brew seat assembly to a side of the brew head assembly, where the barrel opening of the barrel body faces vertically upwards and is aligned with the brew port of the housing. The screw rod is driven by the gear motor to move downwards, the upper powder tamping and brew push rod presses inside the barrel body while the barrel rotating motor drives the link rod to move in association through the barrel seat, such that the lower powder tamping and spent grounds discharge push rod of the brew seat assembly moves upwards, producing the coffee powder in the barrel body into a puck. Next, it waits for hot water from a boiler of the coffee machine to extract and brew coffee. In the spent grounds discharge state, the barrel rotating motor drives the barrel body of the brew seat assembly, and the gear motor drives the upper powder tamping and brew push rod to reset through the screw rod, while the barrel rotating motor continues to rotate towards a side of the spent grounds pouring channel and drives the lower powder tamping and spent grounds discharge push rod of the brew seat assembly to push the coffee grounds puck out of the barrel body. The coffee grounds puck falls out of the housing from the spent grounds pouring plate, so that the spent grounds discharge action is completed.
[0492] The present disclosure has been described above by way of example only within the context of the overall disclosure provided herein. It will be appreciated that modifications within the spirit and scope of the claims may be made without departing from the overall scope of the present disclosure.
Claims
1.A system comprising:a milk reservoir;a cartridge engaged with an opening at a top portion of the milk reservoir;a valve body arranged in the cartridge, the valve body defining an air input channel and an air-liquid channel in communication with one another, the air-liquid channel comprising a stationary orifice;an air intake knob connected to the air input channel;a suction pipe connector connected to the air-liquid channel, the suction pipe connector comprising a movable orifice;wherein the movable orifice is configured to move relative to the stationary orifice to change a flow area in an axial direction between the air input channel and the air-liquid channel.2.The system of claim 1, wherein the movable orifice is arranged on a side of the suction pipe connector.3.The system of claim 1, wherein the movable orifice is arc-shaped.4.The system of claim 1, wherein the movable orifice enlarges from a first end of the movable orifice to a second end of the movable orifice.5.The system of claim 1, wherein the stationary orifice is an elongate orifice.6.The system of claim 1, wherein the air intake knob comprises an air intake valve comprising a hole, wherein the air input channel is in communication with the hole.7.The system of claim 1, wherein the valve body further defines:a steam input channel; anda milk output channel,wherein the steam input channel and the milk output channel are in communication with the air input channel and the air-liquid channel.8.The system of claim 7, wherein the steam input channel and the milk output channel are vertically aligned.9.The system of claim 7, wherein the air-liquid channel and the air intake channel are vertically offset from the milk output channel.10.The system of claim 9, wherein the air-liquid channel is below the milk output channel and the air intake channel is above the milk output channel.11.The system of claim 7, further comprising a steam joint connected to the steam input channel.12.The system of claim 7, further comprising a milk outlet pipe connected to the milk output channel and extending out of the cartridge.13.The system of claim 12, further comprising:an opening defined in a side top portion of the milk reservoir;wherein the milk outlet pipe extends through the opening.14.The system of claim 13, wherein the opening is U-shaped.15.The system of claim 13, wherein the milk outlet pipe is L-shaped.16.A system comprising:a brewing base assembly comprising:a barrel body;a pair ribs arranged on opposing sides of a mouth of the barrel body;a brewing head assembly comprising:a sleeve;a screw rod arranged in the sleeve;a tamp head connected to a first end of the screw rod;a pair of locking hooks connected to opposing sides of the sleeve;wherein the barrel body is configured to rotate to align with the tamp head;wherein, when the barrel body is aligned with the tamp head, the sleeve is configured to move the pair of locking hooks toward the brewing base assembly until the pair of locking hooks engages with the pair of ribs.17.The system of claim 16, wherein a middle portion of each locking hook of the pair of locking hooks by a swing shaft.18.The system of claim 17, wherein the swing shaft is connected to a torsion spring.19.The system of claim 16, wherein, when the pair of locking hooks engages with the pair of ribs, the screw rod is configured to rotate to push the tamp head through the mouth of the barrel body.20.The system of claim 19, further comprising a motor comprising a shaft that is mechanically coupled to a second end of the screw rod that is opposite the first end.21.The system of claim 20, wherein the shaft is mechanically coupled to the second end of the screw rod by a gear assembly.22.The system of claim 16, wherein an end face of the tamp head comprises a filter mesh.23.The system of claim 22, wherein a liquid outlet hole is defined on an inner side of the end face.24.The system of claim 16, wherein a water inlet hole is defined in a bottom corner of the barrel body.25.The system of claim 16, wherein the brewing base assembly further comprises a push rod arranged in the barrel body and configured to move up and down within the barrel body.26.The system of claim 25, wherein the brewing base assembly further comprises a downwardly inclined plate extending from an upper edge of the barrel body.27.A system comprising:a coffee bean chamber;a bean sweeping gear arranged in the coffee bean chamber and configured to rotate to dispense coffee beans from the coffee bean chamber;a motor coupled to and configured to drive the bean sweeping gear;a weight sensor arranged below the coffee bean chamber;a control panel connected to the motor and the weight sensor and comprising a weight selection button, the control panel being configured to control the motor to rotate the bean sweeping gear clockwise or counterclockwise.28.The system of claim 27, further comprising:a grinding assembly comprising:an upper conical burr;a lower conical burr; anda burr adjustment disk connected to an outer diameter of the lower conical burr and configured to rotate to adjust a spacing between the upper conical burr and the lower conical burr.29.The system of claim 27, further comprising a second motor coupled to and configured to rotate the burr adjustment disk.30.The system of claim 28, wherein the control panel is connected to the second motor and further comprises at least one grind coarseness adjustment button, wherein the control panel is configured to control the second motor in response to the grind coarseness adjustment button being pressed.31.The system of claim 30, wherein the at least one grind coarseness adjustment button comprises a coarse setting button, wherein, when the coarse setting button is pressed, the control panel is configured to control the second motor to rotate the burr adjustment disk in a first direction to increase the spacing between the upper and lower conical burrs.32.The system of claim 31, wherein the at least one grind coarseness adjustment button comprises a fine setting button, wherein, when the fine setting button is pressed, the control panel is configured to control the second motor to rotate the burr adjustment disk in a second direction to decrease the spacing between the upper and lower conical burrs.33.The system of claim 32, wherein the first direction is clockwise and the second direction is counterclockwise.34.The system of claim 28, wherein grinding assembly further comprises:an arc-shaped convex protrusion extending from a bottom side portion of the burr adjustment disk;at least one microswitch configured to be triggered by the arc-shaped convex protrusion when the burr adjustment disk rotates to adjust the spacing between the upper and lower conical burrs to a zero position.35.The system of claim 34, wherein the control panel is connected to the at least one microswitch and further comprises a zeroing button, wherein the control panel is configured to control the second motor to move the upper and lower conical burrs to the zero position in response to the zeroing button being pressed.36.The system of claim 27, wherein the control panel further comprises a display.37.The system of claim 36, wherein the control panel is configured to display, using the display numerical values corresponding to a grind size for the coffee beans.38.The system of claim 27, wherein the control panel is configured to display, using the display, weight changes sensed by the weight sensor during dispensing of the coffee beans.39.The system of claim 27, wherein the control panel further comprises a weight sensor zeroing button.40.A precise weighing and coarse / fine grinding mechanism of a push-button coffee machine, the mechanism comprising a bean box assembly, a bean grinding assembly, and a weighing module; weighing sensors being provided in the weighing module below a bean chamber of the bean box assembly; a bean sweeping gear in the bean chamber of the bean box assembly being driven to rotate by an output shaft of a bottom synchronous motor to dispense beans; during a bean dispensing process, coffee beans entering a grinding blade of the bean grinding assembly through a bean dispensing channel of the bean grinding assembly to be ground, and after the coffee beans are ground, coffee grounds being discharged through a coffee grounds outlet channel of the bean grinding assembly; the grinding blade comprising an upper cone blade assembly and a lower cone blade assembly, with a cone blade adjustment disc provided on an outer diameter of the lower cone blade assembly of the bean grinding assembly; the cone blade adjustment disc being driven to rotate by means of meshing between transmission gears at a stepper motor on a side and teeth of an outer diameter gear ring of the cone blade adjustment disc to drive the upper cone blade assembly in the cone blade adjustment disc to move up and down to adjust a grinding spacing between an upper cone blade of the upper cone blade assembly and a lower cone blade of the lower cone blade assembly; and the lower cone blade in the lower cone blade assembly being driven to rotate by a bean grinding motor, wherein an arc-shaped convex point is provided on a side of an outer diameter of a bottom portion of the cone blade adjustment disc; at least one microswitch is provided on the bean grinding assembly corresponding to the arc-shaped convex point; the microswitch, the stepping motor, and the weighing sensors of the weighing module are connected to a circuit board of a control panel via wiring; the control panel is provided with bean grinding weight selection buttons and coarseness adjustment gear buttons; the control panel controls the synchronous motor to rotate clockwise or counterclockwise through a program; and when the arc-shaped convex point of the cone blade adjustment disc triggers one of the microswitches, the cone blade adjustment disc of the bean grinding assembly is at a zero gear position.41.The precise weighing and coarse / fine grinding mechanism of a push-button coffee machine according to claim 40, wherein the control panel is provided with a gear zeroing button at the coarseness adjustment gear buttons.42.The precise weighing and coarse / fine grinding mechanism of a push-button coffee machine according to claim 40, wherein the control panel is provided with a weighing / gear position display and a control program display; and the control program display comprises grams corresponding to coarse, fine, and zero.43.The precise weighing and coarse / fine grinding mechanism of a push-button coffee machine according to claim 40, wherein an adjustment angle range between the teeth of the outer diameter gear ring of the cone blade adjustment disc is 85°, and the gear position changes by 3.4° each time the cone blade adjustment disc is turned, with a total of 25 gear positions.44.The precise weighing and coarse / fine grinding mechanism of a push-button coffee machine according to claim 40, wherein the transmission gears at the stepper motor comprise a first transmission gear at a shaft of the stepper motor and a second transmission gear fixed to the bean grinding assembly; the first transmission gear meshes with the teeth of the outer diameter gear ring of the cone blade adjustment disc through the second transmission gear; and central axes of the first transmission gear, the second transmission gear, and the cone blade adjustment disc, as well as central axes of the stepper motor and a horizontal motor of the bean grinding assembly, are respectively arranged at 90 degrees to one another.45.The precise weighing and coarse / fine grinding mechanism of a push-button coffee machine according to claim 40, wherein one bean box assembly or two symmetric bean box assemblies is or are provided above the bean grinding assembly; and the weighing module is arranged at a lower edge of the bean chamber of the bean box assembly through a weighing module bracket.46.A tamping and brewing device of a coffee machine brewer, the device comprising a brewing base assembly and a brewing head assembly; both sides of a top portion of a housing of the brewing base assembly being symmetrically provided with a coffee grounds receiving port and a brewing port; inside the housing of the brewing base assembly, a barrel body that rotates via a barrel base being provided; at an inner bottom portion of the barrel body, a slag discharge push rod that moves up and down being provided; the slag discharge push rod being driven to move up and down by a push rod motor on a side of an outer diameter of the housing of the brewing base assembly, or the slag discharge push rod being caused to move up and down by rotation of the barrel base driven by a barrel rotating motor on a side of the outer diameter of the housing of the brewing base assembly; when the barrel body in the housing of the brewing base assembly rotates to the brewing port on a side of the brewing head assembly, the barrel body in the housing of the brewing base assembly being aligned with a push head of the brewing head assembly; the push head of the brewing head assembly being pressed down and fitted into the barrel body of the brewing base assembly; and an open slag discharge channel being provided at the housing of the brewing base assembly on a side of the brewing head assembly, wherein one end of the push head of the brewing head assembly is connected, via a pin, to one end of a screw rod inside a sleeve to form a tamping push rod; the other end of the screw rod extends out of the sleeve and connects to a shaft sleeve of a motor gear assembly; on both sides of an outer diameter of the sleeve, locking hooks are symmetrically provided; middle portions of the locking hooks are fixed to both sides of the sleeve via swing shafts, respectively; torsion springs are provided at the swing shafts of the locking hooks, respectively; one end of the locking hook extends out of a side of the sleeve on the brewing base assembly; raised buckle ribs are symmetrically provided on both sides of an outer diameter of a barrel mouth of the barrel body in the housing corresponding to the locking hooks; and when the barrel body in the housing of the brewing base assembly is aligned with the push head of the brewing head assembly, the sleeve causes the locking hooks to move toward the brewing base assembly until the locking hooks engage with the buckle ribs of the barrel body for sealed locking, and at the same time, the motor gear assembly and the screw rod push the push head of the brewing head assembly downward to be hermetically inserted into the barrel body, or an end face of the sleeve abuts against the barrel mouth of the barrel body of the brewing base assembly for sealing.47.The tamping and brewing device of a coffee machine brewer according to claim 46, wherein an end face of the other end of the push head is provided with a filter screen mesh; one liquid outlet hole or symmetrically arranged liquid outlet holes is or are provided in the push head on a side of the end face; an opening on a side of the push head at the liquid outlet hole is provided with a pipe connection groove; the opening of the pipe connection groove corresponds to an external connection hole on a side of the sleeve; a hose is connected to the liquid outlet hole of the push head through the external connection hole of the sleeve and the pipe connection groove of the push head; and the screw rod is connected to the push head through a pin in the pipe connection groove.48.The tamping and brewing device of a coffee machine brewer according to claim 46, wherein the other ends of the locking hooks are each curved upwards towards the sleeve to form an arched protrusion; open positioning slots are provided on both sides of the corresponding sleeve, respectively; side plates are symmetrically provided on the outer diameter of the sleeve on both sides of the locking hooks, respectively; and when the push head is retracted into the sleeve, the arched protrusions of the locking hooks engage with the positioning slots of the sleeve.49.The tamping and brewing device of a coffee machine brewer according to claim 46, wherein the outer diameter of the sleeve is provided with a head sleeve assembly; inside a housing of the head sleeve assembly, there is provided a threaded sleeve that is integrally connected with the sleeve; external threads on an outer diameter of the threaded sleeve are provided with a gear; and while a gear ring on the outer diameter of the gear extends out of the housing, the gear ring on a side of the gear meshes with a transmission gear of a drive motor.50.The tamping and brewing device of a coffee machine brewer according to claim 49, wherein the head sleeve assembly is integrally connected with the brewing base assembly, or the head sleeve assembly and the brewing head assembly are integrally arranged in a groove with an opening on a side of a machine body.51.The tamping and brewing device of a coffee machine brewer according to claim 46, wherein a gear motor of the motor gear assembly is vertically arranged on a side of the outer diameter of the sleeve; a motor shaft of the gear motor is meshed and connected with the screw rod through internal threads of a central hole of an output gear of the gear assembly, or through external threads of the output gear of the gear assembly.52.The tamping and brewing device of a coffee machine brewer according to claim 46, wherein a barrel lid assembly is provided above a side of the coffee grounds receiving port at the top of the housing of the brewing base assembly; a lid hole of the barrel lid assembly is aligned with the coffee grounds receiving port; and a coffee grounds scraping plate with a U-shaped opening is provided in the barrel lid assembly, and a coffee grounds scraping shaft is provided at an open end of the coffee grounds scraping plate.53.The tamping and brewing device of a coffee machine brewer according to claim 46, wherein a downwardly inclined and protruding slag discharge plate is provided on the outer diameter of the housing of the brewing base assembly at a side where the opening of the slag discharge channel is located.54.The tamping and brewing device of a coffee machine brewer according to claim 46, wherein an assembly and disassembly button is provided on a side of the outer diameter of the housing of the brewing base assembly, and the brewing base assembly is fitted into and fixed in the groove with an opening on a side of the machine body through the assembly and disassembly button.55.The tamping and brewing device of a coffee machine brewer according to claim 46, wherein a water inlet hole is provided at a bottom corner of the barrel body of the brewing base assembly at a side where the opening of the slag discharge channel is located; and the water inlet hole is connected to a pipe connection hole with a raised outer diameter on a side of the housing through a hose.56.The tamping and brewing device of a coffee machine brewer according to claim 46, wherein raised limiting posts are symmetrically provided on both sides of the barrel body of the brewing base assembly below the buckle ribs; and when the locking hooks are buckled and tightly locked with the buckle ribs of the barrel body, the barrel body continues to be lifted and extended through the rotation of the barrel base, and the limiting posts of the barrel body are abutted and limited at the brewing port on the top of the housing.57.A lower powder tamping and spent grounds discharge push rod mechanism for coffee brewer, the coffee brewer of which mechanism comprises a brew seat assembly and a brew head assembly, a powder receiving port and a brew port are arranged symmetrically on both sides of a top portion of the brew seat assembly, a barrel body that rotates by means of a barrel seat is arranged in the brew seat assembly, a lower powder tamping and spent grounds discharge push rod that moves up and down is arranged on a bottom portion in the barrel body, the lower powder tamping and spent grounds discharge push rod is caused to move up and down by a rotation of the barrel seat driven by a barrel rotating motor on a side of outer diameter of the brew seat assembly; when the barrel body inside the brew seat assembly rotates to the brew port on a side of the brew head assembly, the barrel body inside the brew seat assembly is aligned with an upper powder tamping and brew push rod of the brew head assembly, and the upper powder tamping and brew push rod of the brew head assembly presses downwards to be sleeved in the barrel body of the brew seat assembly, a spent grounds discharge channel with an opening is arranged on an outer side of a brew head on a side of the brew seat assembly, wherein a link rod with one end inserted into a chamber of a bottom portion of the barrel body is arranged at an open groove on a side of the bottom portion of the barrel body of the brew seat assembly, while a slide hole at one end of the link rod is hinged, by a pin, with one end of the lower powder tamping and spent grounds discharge push rod extending out of the chamber of the bottom portion of the barrel body, a seal ring and a gasket are arranged at a position where the lower powder tamping and spent grounds discharge push rod extends out of the barrel body, an shaft portion at one other end of the link rod is snapped and fixed in fastening grooves on both sides of a groove opening of the open groove of the bottom portion of the barrel body, both ends of the shaft portion of the link rod are provided respectively with a side rod extending and protruding towards a side of a spent grounds pouring channel, side rods of the link rod are located above side rods of the barrel seat protruding in an L shape on both sides, projection posts on an inner side of the side rods are respectively inserted into chutes on both sides of the open groove of the bottom portion of the barrel body, bends on both sides of the barrel seat are snapped and fixed to shaft posts on an outer diameter on both sides of the barrel body above the chutes, the both sides of the barrel seat are connected at the other end to form a U shape and located on an outer side of the barrel body, shaft holes for the barrel rotating motor are arranged respectively on both sides of a snap-fit end of the bends of the barrel seat, a motor shaft of the barrel rotating motor is sleeved into the shaft holes in the barrel seat through a first housing or a second housing; the link rod, the barrel seat, and the barrel body of the brew seat assembly are arranged in a housing formed between the first housing and the second housing, projecting swing shafts are arranged symmetrically on both sides of the barrel body above the shaft posts, the swing shafts of the barrel body are respectively inserted into a first rotation groove and a second rotation groove on an inner side of the first housing and the second housing.58.The lower powder tamping and spent grounds discharge push rod mechanism for coffee brewer according to claim 57, wherein a guide post projecting downwards is arranged symmetrically in the open groove of the bottom portion of the barrel body, the pin passes through openings on both sides of the guide post at a connection between a U-shape opening at one end of the link rod and the lower powder tamping and spent grounds discharge push rod, flat key faces are arranged symmetrically on both sides of the lower powder tamping and spent grounds discharge push rod extending out of the open groove of the bottom portion of the barrel body, the flat key faces on both sides of the lower powder tamping and spent grounds discharge push rod abut on an inner side face of the U-shape opening of the link rod through the openings on both sides of the guide post.59.The lower powder tamping and spent grounds discharge push rod mechanism for coffee brewer according to claim 57, wherein a stopping shaft is arranged to project outwards on an end of the shaft portion of the link rod, when the barrel body of the brew seat assembly rotates to the powder receiving port, the stopping shaft of the link rod abuts against a stopping portion in the brew seat assembly.60.The lower powder tamping and spent grounds discharge push rod mechanism for coffee brewer according to claim 57, wherein a water inlet port is arranged on a side of the spent grounds pouring channel of the bottom portion of the barrel body, the water inlet port is connected with a tube orifice on a side of the brew seat assembly through a hose.61.The lower powder tamping and spent grounds discharge push rod mechanism for coffee brewer according to claim 57, wherein a screw rod on one end of the upper powder tamping and brew push rod of the brew seat assembly extends out of a motor gear assembly through a sleeve body, a motor shaft of a gear motor on a side of outer diameter of the sleeve body is connected with a drive gear in a gear assembly, the screw rod is connected with inner threads of a central hole of an output gear in the gear assembly.62.The lower powder tamping and spent grounds discharge push rod mechanism for coffee brewer according to claim 57, wherein a spent grounds pouring plate that inclines and projects downwards is arranged on an outer diameter of a through hole of the barrel body of the brew seat assembly on a side of the spent grounds pouring channel.63.The lower powder tamping and spent grounds discharge push rod mechanism for coffee brewer according to claim 57, wherein a scraper assembly is arranged above a top portion of the brew seat assembly on a side of the powder receiving port, a cover hole of the scraper assembly is aligned with the powder receiving port, a scraper is arranged in a barrel cover assembly.64.The lower powder tamping and spent grounds discharge push rod mechanism for coffee brewer according to claim 63, wherein a beam with a raised height is arranged between the first housing and the second housing above the brew seat assembly on a side of the scraper assembly on a side of the spent grounds pouring channel.65.An automatic extracting and brewing-type brewer for a large-dose coffee machine, wherein:a tamping assembly (7) is provided inside a housing of the brewer and performs reciprocating rotation in a particular direction by means of a first motor on a side of an outside diameter of the housing;a brewing chamber plunger (703) reciprocating up and down is provided in a brewing chamber inside a main body (701) of the tamping assembly;when a top chamber opening of the brewing chamber of the tamping assembly is rotated to a vertical powder-receiving port on one side of a top portion of the housing, coffee powder falls into the brewing chamber of the tamping assembly;when the top chamber opening of the brewing chamber of the tamping assembly is rotated to a hydraulic assembly (4) provided obliquely on one other side of the top portion of the housing, coffee powder inside the brewing chamber of the tamping assembly is compressed into a coffee ground puck inside the brewing chamber by being pushed by a hydraulic assembly while hot water from a boiler flows through the brewing chamber of the tamping assembly into the tamping assembly and is then discharged;a waste disposal hole is provided on one side of the housing below the hydraulic assembly; during a process of the tamping assembly resetting to the side of the powder receiving port, the hydraulic assembly leaves the brewing chamber of the tamping assembly and is reset inside the brewing chamber by a plunger spring (704) ; andthe coffee ground puck is pushed by the brewing chamber plunger and discharged from a waste disposal hole;the hydraulic assembly (4) is fixedly arranged in a screw (2) ;male threads on an outside diameter of the screw mesh with female threads on an inside diameter of an oblique gear (1) ;an outer gear rim on an outside diameter of the oblique gear extending beyond the hydraulic assembly meshes with a pinion gear provided at a motor shaft of a second motor;a seal base inside the hydraulic assembly is provided with a liquid discharge channel;a hydraulic joining hole is provided on a top portion of the liquid discharge channel of the seal base; a pendulum shaft column (7011) is provided symmetrically protruding on both sides of the outside diameter of the main body (701) of the tamping assembly (7) below brewing chamber;the pendulum shaft column is secured by snap-fit in a shaft engaging groove on both sides at one end of the brewing bracket (9) on a bottom portion of the tamping assembly in the housing;a pendulum shaft of the first motor is connected by the housing with a shaft socket (901) on a side of the shaft engaging groove of the brewing bracket;a shaft pin (902) is provided in symmetry protruding from an inner side of one other end of the brewing bracket;the shaft pin of the brewing bracket is inserted into symmetric pin holes on two sides of a lower outside diameter of the brewing chamber of the tamping assembly;the tamping assembly and the brewing bracket are connected in one piece to perform reciprocating rotation in a particular direction by means of the pendulum shaft of the first motor;a grounds-pushing plunger (702) is provided in an end corner groove of the main body of the tamping assembly below the brewing chamber on the side of the shaft pin;a shaft portion of the grounds-pushing plunger is secured by snap-fit in the end corner groove of the tamping assembly to perform a pendulum motion;a plunger head (7023) on one end of the grounds-pushing plunger extends into the tamping assembly and is connected by insertion into a rod hole at an end tip of a rod portion on one end of the brewing chamber plunger (703) extending from a bottom portion of the brewing chamber in the tamping assembly;the plunger spring (704) is provided on an outside diameter of the rod portion on a bottom portion of the brewing chamber plunger in the brewing chamber.66.The automatic extracting and brewing-type brewer for a large-dose coffee machine of claim 65, wherein the brewing chamber of the tamping assembly (7) is a brewing chamber capable of being loaded with 39.0g of coffee powder, the brewing chamber with an inside diameter of 52.0 mm, a free height of 62.0 mm, a minimum height of 25.0 mm after compression, and a maximum height of 46.0 mm after compression, and wherein a height of the rod portion of the grounds-pushing plunger is 13.5 mm.67.The automatic extracting and brewing-type brewer for a large-dose coffee machine of claim 65, wherein the hydraulic assembly (4) has a quadrangular shape, the oblique gear (1) extends beyond four end faces of the hydraulic assembly, respectively.68.The automatic extracting and brewing-type brewer for a large-dose coffee machine of claim 65, wherein:the housing comprises a first housing (6) and a second housing (10) arranged on two sides of the tamping assembly (7) , and a hydraulic housing (3) arranged on the outside diameter of the hydraulic assembly (4) , a powder-receiving cover (5) at the powder-receiving port; the powder-receiving port is provided at the powder-receiving cover;the powder-receiving cover on the outside diameter of the powder-receiving port is secured by snap-fit to the first housing and the second housing on a side above the top chamber opening of the brewing chamber in a vertical state of the tamping assembly;when the first housing, the second housing, and the powder-receiving cover are integrally placed into a brewer slot on one side of the coffee machine, a T-shape head on a top portion of the oblique protruding port of the first housing and the second housing is engaged and secured in a T-shape hole (301) in a bottom housing aperture of the hydraulic housing in the coffee machine; the hydraulic assembly, the oblique gear (1) , and the screw (2) are disposed in the hydraulic housing, or the first housing (6) , the second housing (10) , the powder-receiving cover (5) and the hydraulic housing (3) are connected in one piece to form the housing, and the housing is placed as a whole into the brewer slot on one side of the coffee machine.69.The automatic extracting and brewing-type brewer for a large-dose coffee machine of claim 65, wherein a scraper (12) is provided in a bottom cover opening of the powder-receiving cover above the top chamber opening of the brewing chamber in the tamping assembly (7) ; an aperture of the scraper is aligned to a powder-receiving aperture of the powder-receiving cover; a protruding scraping edge is provided on a bottom portion of the scraper on a side in a rotation direction of the tamping assembly; the scraping edge of the scraper is higher than the bottom cover opening of the powder-receiving cover while the scraping edge of the scraper abuts the top chamber opening of the brewing chamber in the tamping assembly.70.The automatic extracting and brewing-type brewer for a large-dose coffee machine of claim 69, wherein a waste disposal plate protruding obliquely is provided on the outside diameter of the brewing chamber of the tamping assembly (7) below one side of the scraping edge of the scraper (12) .71.The automatic extracting and brewing-type brewer for a large-dose coffee machine of claim 65, wherein an Americano water inlet port (7012) and an espresso water inlet port are respectively provided on two sides of the outside diameter of the housing; the Americano water inlet port and the espresso water inlet port are respectively in communication with the brewing chamber in the main body (701) of the tamping assembly (7) and a dual liquid discharge channel in the hydraulic assembly (4) ; a brewing chamber water inlet nozzle (7013) projecting outwards is provided on one side of the bottom portion of the brewing chamber in the tamping assembly; hot water from the boiler flows through the Americano water inlet port and the espresso water inlet port; and a bearing hose (8) in the housing is connected with the brewing chamber water inlet nozzle.72.The automatic extracting and brewing-type brewer for a large-dose coffee machine of claim 65, wherein one other end of the grounds-pushing plunger (702) is provided with a stopping axis (7021) projecting outwards; a stopping column (601) is provided in the housing above the stopping axis; when coffee powder in the brewing chamber of the tamping assembly (7) is compressed by the hydraulic assembly (4) to produce a coffee ground puck, the stopping axis of the grounds-pushing plunger abuts the stopping column in the housing.73.The automatic extracting and brewing-type brewer for a large-dose coffee machine of claim 65, wherein a pendulum rod (7022) fitting to an outer diameter of the brewing bracket (9) is provided respectively on two ends of the grounds-pushing plunger snap-fit in the end corner groove of the main body (701) ; an adjustment hole (602) in an arc shape is provided in the housing on the outer side of the main body corresponding to the pendulum rod.74.The automatic extracting and brewing-type brewer for a large-dose coffee machine of claim 65, wherein a loading / unloading button (11) is provided on a loading / unloading side of the housing on the outside of the tamping assembly (7) ; the housing is secured by snap-fit in the brewer slot on one side of the coffee machine by means of the loading / unloading button.75.A machine for brewing a beverage, comprising:a brew chamber configured to contain ground coffee and configured to be fluidically coupled to a water source;a plunger disposed within the brew chamber, the plunger configured to supply water to the ground coffee and to eject the ground coffee from the brew chamber; anda ring disposed on the plunger and configured to at least partially seal the brew chamber.76.The machine of claim 75, wherein the brew chamber includes an upper opening through which the ground coffee is configured to be delivered into an interior region of the brew chamber; andthe plunger is configured to move upwardly in the brew chamber to eject the ground coffee from the brew chamber.77.The machine of claim 76, wherein a plurality of holes are formed in an upper surface of the plunger through which the water is configured to pass to enter the interior region of the brew chamber.78.The machine of claim 77, wherein the ring extends around a circumference of the upper surface of the plunger.79.The machine of claim 77, wherein the ring is arranged under the upper surface of the plunger.80.The machine of claim 76, further comprising a frame arranged above the upper opening of the brew chamber;wherein the frame is configured to scrape across an upper surface of the plunger.81.The machine of claim 80, wherein the ring extends around a circumference of the upper surface of the plunger.82.The machine of claim 80, wherein the ring is arranged under the upper surface of the plunger.83.The machine of claim 75, further comprising a first channel beneath and parallel to a bottom surface of the brew chamber; anda second channel extending from an interior region of the brew chamber, through the bottom surface of the brew chamber, and into the first channel;wherein the water is configured to enter the brew chamber by flowing in the first and second channels.84.The machine of claim 83, further comprising the water source; anda water inlet configured to receive the water from the water source;wherein the water is configured to flow from the water inlet to the first channel.85.The machine of claim 75, further comprising the water source; anda housing that houses the brew chamber, the plunger, and the ring;wherein the water source is configured to be removably coupled to the housing.86.The machine of claim 75, further comprising a grinder configured to grind coffee beans and thereby produce the ground coffee;wherein the brew chamber is configured to receive the ground coffee from the grinder.87.The machine of claim 75, further comprising a chute configured to receive the ground coffee from a user;wherein the brew chamber is configured to receive the ground coffee from the chute.88.The machine of claim 75, further comprising a grinder configured to grind coffee beans;a chute configured to receive coffee grounds from a user; anda user interface configured to receive an input from a user;wherein the brew chamber is configured to receive the ground coffee from one of the grinder and the chute based on the input.89.A machine for brewing a beverage, comprising:a brew chamber configured to contain ground coffee and configured to be fluidically coupled to a water source;a tamper configured to compress the ground coffee in the brew chamber to force water received by the brew chamber from the water source through the ground coffee; anda ring disposed on the tamper and configured to at least partially seal the brew chamber.90.The machine of claim 89, wherein the tamper is configured to move into the brew chamber to press against the coffee grounds in the brew chamber.91.The machine of claim 90, wherein a surface of the tamper configured to press against the coffee grounds is configured to move into the brew chamber through an upper opening of the brew chamber;the ring is disposed above the surface of the tamper.92.The machine of claim 90, further comprising a controller configured to control the movement of the tamper into the brew chamber.93.The machine of claim 92, further comprising a force sensor configured to measure a force exerted by the tamper;wherein controlling the movement of the tamper comprises:continuously monitoring a pressure in the brew chamber using the measured force, andin response to determining that the pressure in the brew chamber is within a predetermined range of the determined brewing pressure, halting the movement of the tamper.94.The machine of claim 89, further comprising a motor; anda gear train operatively coupled to the tamper;wherein the motor is configured to drive movement of the gear train to cause the tamper to compress the ground coffee in the brew chamber.95.The machine of claim 94, further comprising a controller configured to control the motor.96.The machine of claim 89, further comprising an outlet; anda channel arranged along a longitudinal axis of the tamper and fluidically coupled to the outlet;wherein movement of the tamper out of the brew chamber is configured to generate negative pressure in the brew chamber such that brewed beverage contained in the brew chamber is drawn into the channel and transmitted out of the outlet.97.The machine of claim 89, further comprising the water source; anda housing that houses the brew chamber, the tamper, and the ring;wherein the water source is configured to be removably coupled to the housing.98.The machine of claim 89, further comprising a grinder configured to grind coffee beans and thereby produce the ground coffee;wherein the brew chamber is configured to receive the ground coffee from the grinder.99.The machine of claim 89, further comprising a chute configured to receive the ground coffee from a user;wherein the brew chamber is configured to receive the ground coffee from the chute.100.The machine of claim 89, further comprising a grinder configured to grind coffee beans;a chute configured to receive coffee grounds from a user; anda user interface configured to receive an input from a user;wherein the brew chamber is configured to receive the ground coffee from one of the grinder and the chute based on the input.101.A machine for brewing a beverage, comprising:a brew chamber configured to contain ground coffee and configured to be fluidically coupled to a water source, the brew chamber containing a recess formed on an outer surface thereof;a tamper disposed within a housing and configured to advance toward the brew chamber to compress the ground coffee in the brew chamber; anda clamp coupled to the housing and configured to move between a first position in which the clamp engages the recess to thereby constrain the tamper relative to the brew chamber and a second position in which the clamp disengages the recess;wherein movement of the clamp is controlled by movement of the tamper.102.The machine of claim 101, wherein movement of the clamp is controlled by movement of the tamper.103.The machine of claim 101, wherein movement of the clamp occurs in response to movement of the tamper.104.The machine of claim 101, wherein the clamp is configured to dynamically move into engagement with the recess and to dynamically disengage from the recess.105.The machine of claim 104, wherein the advancement of the tamper toward the brew chamber is configured to cause the dynamic movement of the clamp; andretraction of the tamper away from the brew chamber is configured to cause the dynamic disengagement of the clamp.106.The machine of claim 104, wherein the clamp is pivotally connected to the tamper.107.The machine of claim 101, wherein the tamper is configured to advance downwardly through an upper opening of the brew chamber; andthe clamp extends downwardly.108.The machine of claim 101, wherein the clamp includes a pair of clamps; andthe recess includes a pair of recesses.109.The machine of claim 101, further comprising an outlet; anda channel arranged along a longitudinal axis of the tamper and fluidically coupled to the outlet;wherein movement of the tamper out of the brew chamber is configured to generate negative pressure in the brew chamber such that brewed beverage contained in the brew chamber is drawn into the channel and transmitted out of the outlet.110.The machine of claim 101, further comprising the water source; anda housing that houses the brew chamber, the tamper, and the clamp;wherein the water source is configured to be removably coupled to the housing.111.The machine of claim 101, further comprising a grinder configured to grind coffee beans and thereby produce the ground coffee;wherein the brew chamber is configured to receive the ground coffee from the grinder.112.The machine of claim 101, further comprising a chute configured to receive the ground coffee from a user;wherein the brew chamber is configured to receive the ground coffee from the chute.113.The machine of claim 101, further comprising a grinder configured to grind coffee beans;a chute configured to receive coffee grounds from a user; anda user interface configured to receive an input from a user;wherein the brew chamber is configured to receive the ground coffee from one of the grinder and the chute based on the input.114.A machine for brewing a beverage, comprising:a grinder configured to grind coffee beans and thereby produce coffee grounds;a brew chamber configured to contain the coffee grounds;a chute disposed between the grinder and the brew chamber, the chute configured to deliver the coffee grounds to the brew chamber;a sieve disposed at an outlet of the chute; andan auger disposed within the chute and configured to agitate coffee grounds passing through the chute and to push the coffee grounds through the sieve.115.The machine of claim 114, further comprising an outlet;wherein brewed beverage contained in the brew chamber is configured to be dispensed out of the outlet to a drinking container.116.The machine of claim 114, wherein the brew chamber is configured to receive water from a water source.117.A machine for brewing a beverage, comprising:a brew chamber configured to contain ground coffee and configured to be fluidically coupled to a water source; anda tamper configured to compress the ground coffee in the brew chamber to force water received by the brew chamber from the water source through the ground coffee;wherein the brew chamber is movable between a first position, in which the brew chamber is not aligned with the tamper and is arranged to receive the ground coffee, and a second position, in which the brew chamber is aligned with the tamper and is separated from the tamper by a first separation distance; andwherein the brew chamber is movable between the second position and a third position, in which the brew chamber is aligned with the tamper and is separated from the tamper by a second separation distance that is less than the first separation distance.118.The machine of claim 117, further comprising a plunger comprising a shaft and a disk disposed on an end of the shaft;wherein disk is configured to be arranged in an interior region of the brew chamber and cover a bottom surface of the brew chamber; andthe shaft is configured to extend out of the brew chamber through a through-hole in the bottom surface of the brew chamber.119.The machine of claim 118, wherein, when the brew chamber moves from the third position to the second position, the plunger is configured to remain in a fixed position such that a third separation distance between the bottom surface of the brew chamber and the disk increases and a fourth separation distance between the opening of the brew chamber and the disk decreases until the disk is disposed in the opening with the brew chamber in the second position.120.The machine of claim 119, wherein, when the brew chamber moves from the second position to the first position, the plunger is configured to move with the brew chamber such that the disk remains disposed in the opening.121.The machine of claim 120, further comprising a scraper adjacent to and above the opening of the brew chamber when the brew chamber is in the first position;wherein, when the brew chamber moves from the second position to the first position, the scraper is configured to project into the opening of the brew chamber and slide across an upper surface of the disk.122.The machine of claim 118, wherein a water inlet in the bottom surface of the brew chamber is configured to receive water from the water source.123.The method of claim 122, wherein a plurality of holes in the disk are configured to allow water from the water inlet to pass through the disk and into the interior region of the brew chamber while containing ground coffee in the interior region of the brew chamber.124.The machine of claim 117, further comprising a motor configured to drive the movement of the brew chamber.125.The machine of claim 117, further comprising a grinder configured to grind coffee beans and thereby produce the ground coffee;wherein the brew chamber is configured to receive the ground coffee from the grinder.126.The machine of claim 117, further comprising a chute configured to receive the ground coffee from a user;wherein the brew chamber is configured to receive the ground coffee from the chute.127.The machine of claim 117, further comprising a grinder configured to grind coffee beans;a chute configured to receive coffee grounds from a user; anda user interface configured to receive an input from a user;wherein the brew chamber is configured to receive the ground coffee from one of the grinder and the chute based on the input.128.A machine for brewing a beverage, comprising:a brew chamber configured to receive ground coffee and to receive water;a tamper configured to move into the brew chamber to press against the coffee grounds in the brew chamber; anda controller configured to control the movement of the tamper into the brew chamber based on a type of beverage being brewed in the brew chamber.129.The machine of claim 128, further comprising a gear comprising a threaded bore;wherein the tamper comprises an arm with a threaded external surface that is arranged in the threaded bore of the gear such that the gear rotating relative to the arm is configured to cause the tamper to move linearly along a longitudinal axis of the tamper into the brew chamber.130.The machine of claim 129, wherein the tamper is configured to move linearly along the longitudinal axis of the tamper out of the brew chamber.131.The machine of claim 129, wherein the gear rotating in a first direction is configured to cause the tamper to move toward the brew chamber; andthe gear rotating in a second direction is configured to cause the tamper to move away from the brew chamber.132.The machine of claim 128, wherein the controller is configured to:receive information indicating the type of beverage to be brewed in the brew chamber,determine a brewing pressure based on the received information, andcontrol the movement of the tamper to generate the determined brewing pressure.133.The machine of claim 132, further comprising a force sensor configured to measure a force exerted by the tamper;wherein controlling the movement of the tamper comprises:continuously monitoring a pressure in the brew chamber using the measured force, andin response to determining that the pressure in the brew chamber is within a predetermined range of the determined brewing pressure, halting the movement of the tamper.134.The machine of claim 132, further comprising a user interface configured to receive an input from a user indicating the type of beverage to be brewed.135.The machine of claim 128, further comprising an outlet configured to dispense the brewed beverage; anda channel arranged along a longitudinal axis of the tamper and fluidically coupled to the outlet;wherein movement of the tamper out of the brew chamber is configured to generate negative pressure in the brew chamber such that the beverage contained in the brew chamber is drawn into the channel and transmitted out of the outlet.136.A machine for brewing a beverage, comprising:a housing in which a beverage is configured to be brewed in a brew chamber using ground coffee and water;an outlet through which the brewed beverage is configured to be dispensed to a drinking container;a waste container removably coupled to the housing, wherein the coffee grounds are configured to be ejected to the waste container from the brew chamber; andan excess fluid container removably coupled to the housing and configured to collect in a collection region excess fluid exiting the outlet.137.The machine of claim 136, wherein a plate is removably coupled to the excess fluid container;wherein a plurality of through-slots are formed in the plate to allow the excess fluid to pass therethrough into the excess fluid container.138.The machine of claim 137, wherein the excess fluid container and the plate are configured to be removed as a unit from the housing.139.The machine of claim 137, wherein the excess fluid container, the plate, and the waste container are configured to be removed as a unit from the housing.140.The machine of claim 136, wherein the excess fluid container is configured to seat the drinking container thereon underneath the outlet.141.The machine of claim 136, wherein the excess fluid container includes an overflow region in fluid communication with the collection region and configured to receive the excess fluid if the collection region becomes full.142.The machine of claim 141, further comprising a sensor configured to detect when the excess fluid in the collection region and the overflow region exceed a threshold amount.143.The machine of claim 142, further comprising a user interface; anda controller configured to notify a user, via the user interface, if the sensor detects that the excess fluid in the collection region and the overflow region exceed the threshold amount.144.The machine of claim 141, further comprising a removable lid covering the overflow region.145.The machine of claim 136, wherein the excess fluid container and the waste container are configured to be removed as a unit from the housing.146.A machine for brewing a beverage, comprising:a hopper comprising:a container portion configured to contain coffee beans as a supply for a grinder,an opening in the container portion,a protrusion in an interior of the container portion and extending above the opening,an electro-mechanical rotor arranged in the opening below the protrusion, anda funnel arranged on an exterior of container portion beneath the opening, having a through-hole through which the electro-mechanical rotor extends, and having a spout arranged under the protrusion and through which the coffee beans are configured to exit the hopper;wherein the electro-mechanical rotor is configured to move between a stationary configuration and a rotating configuration;in the stationary configuration, the electro-mechanical rotor is configured to prevent the coffee beans contained in the container portion from entering the spout; andin the rotating configuration, the electro-mechanical rotor is configured to allow the coffee beans contained in the container portion to enter the spout.147.The machine of claim 146, wherein the electro-mechanical rotor includes a central protrusion that is surrounded by plurality of circumferential spokes.148.The machine of claim 147, wherein, in the rotating configuration, the plurality of circumferential spokes are configured to cause the coffee beans contained in the container portion to move beneath the protrusion and into the spout.149.The machine of claim 147, wherein the central protrusion extends through the through-hole of the funnel.150.The machine of claim 146, wherein the container portion is refillable; andthe hopper further comprises a lid selectively covering the container portion.151.The machine of claim 146, wherein the hopper further comprises a grating above the opening and the protrusion.152.The machine of claim 146, wherein the protrusion is concave.153.The machine of claim 146, further comprising the grinder.154.The machine of claim 146, further comprising a housing in which a beverage is configured to be brewed in a brew chamber using water and ground coffee beans;wherein the hopper is configured to be removably coupled to the housing.155.The machine of claim 154, further comprising a motor housed by the housing and, with the hopper removably coupled to the housing, configured to drive rotation of the electro-mechanical rotor.156.The machine of claim 155, further comprising the grinder;wherein the grinder is housed by the housing.157.A machine for brewing a beverage, comprising:a housing in which a beverage is configured to be brewed in a brew chamber using water and ground coffee; anda hopper configured to store coffee beans and configured to be removably coupled to the housing.158.The machine of claim 157, wherein the housing has a bottom, a top, and a side extending between the bottom and the top; andthe hopper is configured to couple to the top of the housing.159.The machine of claim 157, wherein the housing has a bottom, a top, and a side extending between the bottom and the top; andthe hopper is configured to couple to the side of the housing.160.The machine of claim 157, further comprising a motor housed by the housing;wherein the hopper includes a rotor configured to be driven by the motor with the hopper removably coupled to the housing to cause the coffee beans to exit the hopper.161.The machine of claim 157, further comprising a hopper identification device attached to the hopper; anda controller configured to receive information regarding the coffee beans from the hopper identification device.162.The machine of claim 157, further comprising at least one additional hopper each configured to be removably coupled to the housing.163.The machine of claim 162, wherein the housing is configured to be removably coupled with only one of the hopper and the at least additional hopper at a time.164.The machine of claim 163, further comprising a first hopper identification device attached to the hopper;an additional hopper identification device attached to each of the at least one additional hopper; anda controller configured to receive information regarding the coffee beans from the hopper identification device of the one of the one of the hopper and the at least additional hopper removably coupled to the housing.165.The machine of claim 162, wherein the housing is configured to be removably coupled simultaneously with the hopper and the at least additional hopper.166.The machine of claim 165, further comprising a first hopper identification device attached to the hopper;an additional hopper identification device attached to each of the at least one additional hopper; anda controller configured to receive information regarding the coffee beans from the hopper identification device of each of the one of the hopper and the at least additional hopper removably coupled to the housing.167.The machine of claim 157, further comprising a grinder configured to receive the coffee beans from the hopper and to supply the ground coffee beans to the brew chamber.168.A machine for brewing a beverage, comprising:a hopper comprising:a container portion configured to contain coffee beans as a supply for a grinder,an opening in the container portion, andan electro-mechanical rotor arranged in the opening below the protrusion, the electro-mechanical rotor comprising a plurality of circumferential spokes.169.The machine of claim 168, wherein the electro-mechanical rotor is configured to move between a stationary configuration and a rotating configuration, wherein:in the stationary configuration, the electro-mechanical rotor is configured to prevent the coffee beans contained in the container portion from passing through the opening; andin the rotating configuration, the electro-mechanical rotor is configured to allow the coffee beans contained in the container portion to pass through the opening and out of the hopper.170.The machine of claim 169, wherein an amount of the coffee beans allowed to pass through the opening while the electro-mechanical rotor is in the rotating configuration is within a threshold amount of a predetermined amount of the coffee beans.171.The machine of claim 170, wherein the threshold amount is less than or equal to 0.5 g.172.The machine of claim 168, wherein the electro-mechanical rotor comprises:a central hub comprising a plurality of circumferential slots; anda ring comprising the plurality of circumferential spokes,wherein the central hub is disposed atop the ring such that each of the plurality of circumferential spokes extend through a slot of the plurality of circumferential slots.173.The machine of claim 168, wherein the plurality of circumferential spokes are formed from a flexible material.174.A machine for brewing a beverage, comprising:a housing in which a beverage is configured to be brewed in a brew chamber using water and ground coffee;a hopper;a weight sensor configured to measure a total weight of the hopper and any coffee beans contained in the hopper;wherein the weight sensor is configured to be the sole bearer of the total weight of the hopper and any coffee beans contained in the hopper.175.The machine of claim 174, wherein the weight sensor is a load cell.176.The machine of claim 174, further comprising a controller housed by the housing and configured to be communicatively coupled with the weight sensor;wherein the controller is configured to determine if the measured total weight is below a predetermined threshold weight.177.The machine of claim 176, further comprising a user interface;wherein the controller is configured to provide a notification via the user interface if the measured total weight is determined to fall below the predetermined threshold weight.178.The machine of claim 174, further comprising a controller housed by the housing and configured to be communicatively coupled with the weight sensor;wherein the controller is configured to monitor the measured total weight during dispensing of coffee beans from the hopper and to stop the dispensing in response to the measured total weight having changed by an amount corresponding to a required amount of coffee beans for the beverage.179.The machine of claim 178, further comprising a user interface;wherein the beverage is configured to be selected by a user via the user interface.180.The machine of claim 174, wherein the hopper is configured to be removably coupled to the housing.181.A machine for brewing a beverage, comprising:a housing in which a beverage is configured to be brewed in a brew chamber using water and ground coffee;a grinder;a plurality of hoppers each configured to supply coffee beans to the grinder;a weight sensor configured to measure a total weight of the plurality of hoppers and any coffee beans contained in the plurality of hoppers;wherein the weight sensor is configured to be the sole bearer of the total weight of the plurality of hoppers and any coffee beans contained in the plurality of hoppers.182.The machine of claim 181, wherein the weight sensor is a load cell.183.The machine of claim 181, further comprising a controller housed by the housing and configured to be communicatively coupled with the weight sensor;wherein the controller is configured to determine if the measured total weight is below a predetermined threshold weight.184.The machine of claim 183, further comprising a user interface;wherein the controller is configured to provide a notification via the user interface if the measured total weight is determined to fall below the predetermined threshold weight.185.The machine of claim 181, further comprising a controller housed by the housing and configured to be communicatively coupled with the weight sensor;wherein the controller is configured to monitor the measured total weight during supplying of coffee beans to the grinder and to stop the supplying in response to the measured total weight having changed by an amount corresponding to a required amount of coffee beans for the beverage.186.The machine of claim 185, further comprising a user interface;wherein the beverage is configured to be selected by a user via the user interface.187.The machine of claim 181, wherein each of the plurality of hoppers is configured to be removably coupled to the housing.188.A machine for brewing a beverage, comprising:a hopper,a grinder configured to grind coffee beans received from the hopper,a chute configured to configured to receive ground coffee from a user, anda brew chamber configured to receive either ground coffee from the grinder or from the chute for brewing a selected beverage.189.The machine of claim 188, wherein the grinder includes a first burr and a second burr defining a space therebetween in which the coffee beans to be ground are configured to be located; andadjusting a size of the space is configured to adjust coarseness of the grind.190.The machine of claim 189, wherein the beverage machine further comprises a controller; andthe beverage machine further comprises an encoder operatively coupled to the controller and configured to transmit a signal to the controller indicating a current grind size setting of the grinder.191.The machine of claim 189, wherein the beverage machine further comprises a controller;the beverage machine further comprises a gear train operatively coupled to the grinder; andthe beverage machine further comprises a motor configured to drive movement of the gear train to adjust the size of the space.192.The machine of claim 188, wherein the beverage machine further comprises a user interface configured to receive a user input selecting the beverage.193.A machine for brewing a beverage, comprising:a grinder configured to grind coffee beans and configured to move between a plurality of grind size settings;a motor mechanically coupled to the grinder and configured to move the grinder between the plurality of grind size settings;a controller operatively coupled to the motor and configured to:determine an angular displacement associated with a predetermined grind size value;rotate the motor by the angular displacement associated with the predetermined grind size value to move the grinder to a grind size setting of the plurality of grind size settings that corresponds to the predetermined grind size value.194.The machine of claim 193, further comprising an encoder configured to:detect an angular displacement of the motor;generate an encoder value representing the detected angular displacement.195.The machine of claim 194, wherein determining the angular displacement associated with the predetermined grind size value comprises determining a range of encoder values corresponding to the predetermined grind size value.196.A machine for brewing a beverage, comprising:a hopper configured to store coffee beans, the hopper comprising an outlet;a grinder arranged beneath the outlet of the hopper and configured to grind coffee beans received from the hopper;a seal disposed on an upper portion of the grinder and extending at least partially into the outlet.197.The machine of claim 196, wherein the seal comprises a plurality of circumferential bristles that extend at least partially into the outlet.198.The machine of claim 197, wherein the bristles comprise conductive fibers.199.The machine of claim 198, wherein the bristles comprise carbon fibers.200.The machine of claim 196, wherein the seal is a roller seal.201.A method of using the machine of any one of the above claims.202.A method for brewing a beverage, comprising:delivering ground coffee to an interior region of a brew chamber;supplying water to the ground coffee through a plunger to brew a beverage in the brew chamber;dispensing the beverage from the brew chamber; andafter the dispensing of the beverage from the brew chamber, moving the plunger within the brew backet to eject the ground coffee from the brew chamber.203.The method of claim 202, wherein the brew chamber includes an upper opening through which the ground coffee is delivered into the interior region of the brew chamber; andthe plunger moves upwardly in the brew chamber to eject the ground coffee from the brew chamber.204.The method of claim 203, wherein a plurality of holes are formed in an upper surface of the plunger through which the water passes to enter the interior region of the brew chamber.205.The method of claim 204, wherein a frame arranged above the upper opening of the brew chamber scrapes across an upper surface of the plunger to eject the ground coffee from the brew chamber.206.The method of claim 202, wherein a first channel is beneath and parallel to a bottom surface of the brew chamber;a second channel extends from an interior region of the brew chamber, through the bottom surface of the brew chamber, and into the first channel; andthe water is supplied to the brew chamber by flowing in the first and second channels.207.The method of claim 206, wherein the water flows from a water source to the first channel.208.The method of claim 202, further comprising grinding, with a grinder, coffee beans and thereby producing the ground coffee;wherein the brew chamber receives the ground coffee from the grinder.209.The method of claim 202, wherein the brew chamber receives the ground coffee from a chute into which a user manually delivers the ground coffee.210.The method of claim 202, further comprising receiving, with a user interface, an input from a user; andthe brew chamber receives the ground coffee from one of a grinder and a chute based on the input.211.The method of claim 202, wherein the coffee grounds are ejected to a waste container.212.The method of claim 211, wherein the waste container is removably coupled to a housing that houses the brew chamber and the plunger.213.A brew mechanism for an automatic extracting and brewing-type brewer for a large-dose coffee machine, wherein:a tamping assembly (7) is provided and performs reciprocating rotation;a brewing chamber plunger (703) reciprocating up and down is provided in a brewing chamber inside a main body (701) of the tamping assembly;when a top chamber opening of the brewing chamber of the tamping assembly is rotated to a powder-receiving port on one side of a top portion of the housing, coffee powder falls into the brewing chamber of the tamping assembly;when the top chamber opening of the brewing chamber of the tamping assembly is rotated to a hydraulic assembly (4) provided obliquely on one other side of the top portion of the housing, coffee powder inside the brewing chamber of the tamping assembly is compressed into a coffee ground puck inside the brewing chamber by being pushed by a hydraulic assembly;during a process of the tamping assembly resetting to the side of the powder receiving port, the hydraulic assembly leaves the brewing chamber of the tamping assembly and is reset inside the brewing chamber by a plunger spring (704) , wherein the brew mechanism is configured to receive up to 39 grams of coffee powder.214.The brew mechanism of claim 213, wherein the brewing chamber of the tamping assembly (7) is a brewing chamber capable of being loaded with 39.0g of coffee powder, the brewing chamber with an inside diameter of 52.0 mm, a free height of 62.0 mm, a minimum height of 25.0 mm after compression, and a maximum height of 46.0 mm after compression.
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