Apparatus and method for preparing post-mixed carbonated beverages

Abstract

1. An apparatus (10) for preparing an aerated beverage comprising: a removable bottle (30) defining a chamber (32) for containing a liquid to be aerated; an aeration bottle interface (40) for engaging and sealing the bottle (30); a gas inlet line (60) connecting a gas source (50) to the bottle interface (40); a gas supply mechanism (70) for controlling the supply of gas from the gas source (50) through the gas inlet line (60) to the aeration bottle interface (40); an aeration liquid distributor stage (100) having an aeration liquid distributor outlet (110) and a liquid outlet line (120) for allowing aeration liquid to flow from the chamber (32) of the bottle (30) through the aeration bottle interface (40) to the aeration liquid distributor outlet (110); a liquid flow control device (130) for controlling the discharge of the aeration liquid from the aeration bottle (30) through the aeration liquid distributor stage (100); a flavored liquid distributor (210) including a flavored liquid distributor outlet (212), a flavored liquid distributor mechanism (214) actuated by gas pressure, and a gas outlet line (220) including a gas outlet (222) in the aeration bottle interface (40); and a pressure control stage (240) including a gas reservoir (250) connected to the gas outlet line (220) for storing pressurized gas received from the bottle (30) during the initial aeration step, and an exhaust mechanism (242) operable to vent gas from the bottle (30) to reduce the level of gas pressure in the bottle (30) prior to discharge of the aeration liquid from the bottle (30) through the aeration liquid distributor stage (100).

Description

[Technical field]

[0001] The present invention relates to an apparatus for preparing aerated beverages, particularly, but not exclusively, an apparatus for preparing carbonated beverages, and a corresponding method. [Background technology]

[0002] Home carbonation devices are well known in the art and are based on providing an aeration stage including a removable aeration bottle defining a chamber for receiving a liquid to be carbonated; an aeration bottle interface operable to engage the removable aeration bottle and seal the chamber; a gas inlet line operable to fluidly connect a gas cylinder containing pressurized CO2 gas to the aeration bottle interface, the gas inlet line typically terminating in a gas inlet nozzle supported by the aeration bottle interface and configured to extend into the chamber of the aeration bottle when the aeration bottle is engaged with the aeration bottle interface; and a gas supply mechanism (including either a manually operated mechanical valve or an electrically controlled solenoid valve) for controlling the supply of pressurized CO2 gas from the gas cylinder via the gas inlet line to the aeration bottle.

[0003] In use, a liquid (typically water) is added to the chamber of the removable aeration bottle, and the removable aeration bottle is sealingly connected to the aeration bottle interface. Once the removable aeration bottle is sealed in place, the gas supply mechanism is operated (either manually or electronically, depending on the type of device) to transfer CO2 from the gas cylinder to the liquid in the chamber of the sealed removable aeration bottle, thereby carbonate the liquid. Depending on the desired level of carbonation, the gas supply mechanism may be actuated one or multiple times to transfer the desired amount of CO2 to the liquid. Once carbonated to the desired level, the removable aeration bottle may be removed from the device by the user and the carbonated liquid may be consumed. If the carbonated liquid is intended to be flavored, flavoring (typically in the form of a flavored syrup) may be added to the carbonated liquid in the removable aeration bottle after the removable aeration bottle is removed from the device. Summary of the Invention [Problem to be solved by the invention]

[0004] Applicant has identified a need for an improved aeration device that offers much more flexibility than prior art home carbonation devices, while providing increased functionality with minimal added complexity. [Means for solving the problem]

[0005] According to a first aspect of the present invention there is provided an apparatus for preparing an aerated (e.g. carbonated) beverage comprising: a removable aeration bottle defining a chamber for receiving a liquid to be aerated (e.g. water), an aeration bottle interface operable to engage the removable aeration bottle and seal the chamber, an aeration stage including a gas inlet line operable to fluidly connect a gas source (e.g. a displaceable gas (e.g. CO2) cylinder) to the aeration bottle interface and a gas supply mechanism for controlling the supply of gas from the gas source via the gas inlet line to the aeration bottle interface, and an aeration liquid distributor stage including an aeration liquid distributor outlet, a liquid outlet line operable to fluidly connect the aeration bottle interface to the aeration liquid distributor outlet to allow aeration liquid to flow from the chamber of the removable aeration bottle to the aeration liquid distributor outlet, and a liquid flow control device for controlling the discharge of aeration liquid from the removable aeration bottle via the liquid outlet line to the aeration liquid distributor outlet.

[0006] In one embodiment, the apparatus further comprises a gas outlet line including a gas outlet provided at the aeration bottle interface, and a pressure control stage including a gas reservoir connected to the gas outlet line and operable to store pressurized gas received from the removable aeration bottle during the initial aeration step, and an exhaust mechanism operable to vent gas from the removable aeration bottle during a subsequent vent step to reduce the level of gas pressure in the removable aeration bottle prior to discharge of aeration liquid from the removable aeration bottle via the aeration liquid distributor stage.

[0007] In this way, a home (e.g., portable) device is provided that allows for the preparation of aerated beverages (e.g., one beverage at a time) and offers the user the option of providing the aerated beverage from a removable aeration bottle (similar to conventional home carbonation devices) or via an aerated liquid dispenser outlet, with the initial aeration being performed at a first (elevated) pressure suitable for the initial aeration stage, and the dispensing of the aerated beverage being performed at a second (lower) pressure that may ensure better retention of the aeration in certain circumstances. For purposes of this specification, the term "aeration" and its synonyms are used generally to refer to the addition of any gas to a liquid. The term "carbonation" and its synonyms are used herein to refer to the addition of CO2 gas to a liquid.

[0008] In one embodiment, the apparatus further includes a flavored liquid (e.g., flavored syrup) distributor stage including a flavored liquid distributor including a flavored liquid distributor outlet, the flavored liquid distributor including a flavored liquid distributor mechanism actuated by gas pressure (e.g., generated at the head of the chamber during the aeration process and supplied to the gas reservoir via the gas outlet line during the initial aeration stage).

[0009] In one embodiment, the flavored liquid dispenser mechanism is powered by gas pressure from a gas reservoir. In this manner, an apparatus is provided that includes a flavored liquid dispenser that is operated using gas pressure that would be wasted in a conventional home carbonation device. Advantageously, by providing a gas reservoir, the gas-powered operation of the flavored liquid dispenser can be performed at a different (e.g., higher) pressure than the aerated liquid dispensing process and be better suited to powering the flavored liquid dispenser mechanism.

[0010] In one embodiment, the gas reservoir includes a chamber fluidly connected (eg, in parallel or series) to a gas outlet line. In one embodiment, the chamber is connected to a gas outlet line via a directional flow valve (eg, a check valve).

[0011] In one embodiment, the gas supply mechanism is operable to increase the gas pressure in the removable aeration bin to a first pressure P1 during an initial aeration stage, and the pressure control stage is operable to reduce the gas pressure in the removable aeration bin to a second pressure P2 (e.g., with reference to a pressure sensor) via the exhaust mechanism during a subsequent venting step (e.g., before the aeration liquid is discharged).

[0012] In one embodiment, the gas reservoir is operable to receive and store pressurized gas at substantially a first pressure P1. In one embodiment, P2<0.8*P1 (e.g., P2<0.7*P1, such as P2<0.6*P1, for example P2<0.5*P1, for example P2<0.4*P1).

[0013] In one embodiment, the exhaust mechanism includes an exhaust valve. In one embodiment, the exhaust valve is fluidly connected to the gas outlet line (eg, at a point between the gas outlet of the aeration bottle interface and the gas outlet valve, such as at a point between the gas outlet of the aeration bottle interface and the gas reservoir).

[0014] In one embodiment, the gas reservoir has a gas storage capacity configured for multiple operations of the flavoring liquid dispenser mechanism (e.g., for continuously actuating the discharge of the first and second shots of flavoring liquid through the flavoring liquid dispenser mechanism (e.g., in the case of a larger removable aeration bottle system)).

[0015] In one embodiment, the liquid flow control device includes a valve (e.g., a solenoid valve). In one embodiment, the liquid flow control device further includes a flow regulator operable to maintain a substantially constant flow rate (e.g., a substantially constant volumetric flow rate) of the aeration liquid from the liquid dispenser outlet when the aeration liquid is discharged from the removable aeration bottle to the aeration liquid dispenser outlet.

[0016] In one embodiment, the device is configured to transfer the aeration liquid from the removable aeration bottle to the aeration liquid dispenser outlet using the gas pressure in a sealed chamber (e.g., the pressure generated in the headspace of the sealed chamber during the aeration step).

[0017] In another embodiment, the device further includes a pump (e.g., an air pump) operable to supply pressurized gas (e.g., pressurized air) to the removable aeration bottle to transfer the aeration liquid from the removable aeration bottle to the aeration liquid dispenser outlet.

[0018] In one embodiment, the pressure control stage is operable to lower the gas pressure (e.g., to substantially atmospheric pressure) in the removable aeration bottle during a subsequent vent step before the pressurized gas from the pump can enter the removable aeration bottle (e.g., enter the head of its chamber).

[0019] In one embodiment, the pump is operable to supply pressurized gas at a substantially constant pressure (e.g., pressure P3, where P3 < P1). In one embodiment, the liquid outlet line includes a dip tube having an opening for receiving aeration liquid located at the lower (bottom) portion of the chamber when the removable aeration bottle is engaged by the aeration bottle interface. In one embodiment, the dip tube is supported by the aeration bottle interface.

[0020] In one embodiment, the flavored liquid dispenser outlet is positioned adjacent to the aerated liquid dispenser outlet (e.g., to allow both flavored liquid and aerated liquid to be dispensed simultaneously into a receiving vessel, e.g., a drinking glass).

[0021] In one embodiment, the flavored liquid distributor outlet and the aeration liquid distributor outlet are configured (e.g., positioned) to provide aerial mixing of the flavored liquid and the aeration liquid. In one embodiment, the flavored liquid distributor outlet and the aeration liquid distributor outlet are configured to provide aerial mixing outside the device (e.g., inside a receiver located below adjacent flavored liquid distributor outlet and aeration liquid distributor outlet).

[0022] In one embodiment, the flavouring liquid dispenser stage further comprises a gas outlet valve for controlling the discharge of gas from the gas reservoir (eg via a gas outlet line) to the flavour dispenser mechanism.

[0023] In one embodiment, a gas outlet valve is provided between the flavoring liquid distributor mechanism and the gas reservoir. In one set of embodiments, the flavored liquid dispenser is configured to dispense flavored liquid from a flavor capsule (eg, a single use / single serving flavor capsule) received within the flavored liquid dispenser.

[0024] In one embodiment, the flavored liquid dispenser mechanism is operable to perform one or more of the following functions: opening (e.g., breaking) a flavor capsule received within the flavored liquid dispenser, pumping flavored liquid from the opened flavor capsule to the flavored liquid dispenser outlet (e.g., pumping flavored liquid from the opened flavor capsule to the flavored liquid dispenser outlet).

[0025] In one embodiment, the flavored liquid dispenser mechanism includes a capsule dispensing (e.g., a capsule opening mechanism such as a piston) mechanism operable to apply a dispensing force to a flavor capsule received within the flavored liquid dispenser (e.g., to urge the flavor capsule against an opening (e.g., breaking) member and / or to expel flavored liquid from an opened flavor capsule (e.g., by crushing the flavor capsule).

[0026] In one embodiment, the capsule opening mechanism is driven (eg, directly) by gas pressure of a gas stored in a gas reservoir. In one embodiment the flavour capsule is as defined by any of the embodiments of the fourth aspect of the invention.

[0027] In one embodiment, the apparatus further includes a controller (e.g., an electronic controller) for operating one or more of the gas supply mechanism, the liquid flow control mechanism, the flavored liquid distributor stage (e.g., a gas outlet valve), and the exhaust mechanism.

[0028] In one embodiment, the electronic control device is operable to open the exhaust mechanism to reduce the pressure in the removable aeration bottle to a second pressure P2 (i.e., partially evacuate the chamber of the removable aeration bottle) before activating the liquid flow control device mechanism.

[0029] In the case of a device that includes a controller operable to control operation of the gas delivery mechanism, the flavour capsule may include a machine readable identifier (eg, a bar code). In one embodiment, the device is operable to read a machine-readable identifier (e.g., using a sensor), and the electronic controller is operable to select dispensing parameters (e.g., the degree of aeration required and / or water volume) based on the machine-readable identifier.

[0030] In another set of embodiments, the flavored liquid dispenser is configured to dispense flavored liquid (e.g., flavored syrup) from a bulk container (e.g., received by the flavored liquid dispenser) configured to store enough flavored liquid to make multiple beverages (e.g., 10 or more servings of flavored liquid, e.g., 20 or more servings of flavored liquid).

[0031] In one embodiment, the flavored liquid dispenser mechanism includes a bulk container dispenser module associated with the bulk container. In one embodiment, the bulk container distributor module is driven (eg, directly) by the gas pressure of the gas stored in the gas reservoir.

[0032] In one embodiment, the bulk container dispenser module is configured to receive / engage a removable bulk container. In another embodiment, the bulk container distributor module is integrated into the bulk container.

[0033] In one embodiment, the bulk container dispenser module includes a flavored liquid dispenser outlet. In one embodiment, the bulk container is a variable volume (eg, collapsible) container. In another embodiment, the bulk container is a fixed volume (eg, non-collapsible or rigid) container.

[0034] In the case of a fixed volume container, in one embodiment, the bulk container may have an inlet to allow gas (e.g., air or CO2) to enter the bulk container as flavored liquid is dispensed from the bulk container.

[0035] In one embodiment, the apparatus includes a gas collector (eg, a CO2 collector) connectable to the inlet (eg, connectable directly or via a bulk container distributor module). In one embodiment, the gas collector is configured to receive gas from a sealed chamber of a removable aeration bottle (e.g., when pressure develops in the head of the chamber during the aeration process or during a subsequent evacuation cycle) or from a gas reservoir.

[0036] In one embodiment, the gas collector is an open type (eg, open bucket type) gas collector. In one embodiment, the bulk container dispenser module includes a chamber (eg, a metering chamber) configured to receive flavored liquid from a bulk container.

[0037] In one embodiment, the bulk container dispenser module includes a directional valve (eg, a check flap valve) operable to allow flavoring liquid to flow from the bulk container to the chamber.

[0038] In one embodiment, the bulk container dispenser module includes a diaphragm movable between a first (e.g., retracted) configuration (e.g., first position) and a second (e.g., advanced) configuration (e.g., second position), and dispensing of flavored liquid occurs as the diaphragm moves from the first configuration to the second configuration.

[0039] In one embodiment, in the first configuration, the chamber is configured to be filled with flavored liquid from a bulk container, and movement of the diaphragm from the first configuration to the second configuration causes the flavored liquid to be dispensed from the chamber.

[0040] In one embodiment, the movement from the second configuration to the first configuration allows the chamber to be refilled with flavored liquid from a bulk container. In one embodiment, the transition from the first configuration to the second configuration occurs in response to a positive pressure from a gas reservoir.

[0041] In one embodiment, the movement from the second configuration to the first configuration occurs in response to a negative pressure. In one embodiment, the apparatus further comprises means (eg, a suction device) operable to move the diaphragm from the second configuration to the first configuration.

[0042] In one embodiment, the suction device includes a venturi nozzle operable to generate a negative pressure in the chamber when the gas collector is filled. In one embodiment, the bulk container dispenser module further includes a dispenser outlet valve (eg, a pressure-activated sleeve valve) for receiving the flavored liquid from the chamber.

[0043] In one embodiment, the bulk container dispenser module further includes an outlet nozzle for receiving the flavored liquid from the dispenser outlet valve. In one embodiment, two or more of the diaphragm, distributor outlet valve, and outlet nozzle are provided as a single component (eg, a one-piece diaphragm).

[0044] In one embodiment, the apparatus further includes an electronic controller operable to control operation of the gas supply mechanism, and the bulk container includes a machine-readable identifier, the apparatus operable to read the machine-readable identifier, and the electronic controller operable to select dispensing parameters (e.g., the degree of aeration required and / or water volume) based on the machine-readable identifier.

[0045] In one embodiment, the gas supply mechanism includes a gas supply valve operable to selectively allow gas to flow from the gas supply. In one embodiment, the gas supply mechanism includes a pivotable valve actuation member configured to operate the gas supply valve, hi one embodiment, the pivotable valve actuation member is actuated by a solenoid (e.g., an electronically controlled solenoid).

[0046] In one embodiment, the aeration bottle interface includes a gas inlet nozzle forming part of the gas inlet line, the gas inlet nozzle configured to extend inside the chamber of the removable aeration bottle when the removable aeration bottle is engaged by the aeration bottle interface.

[0047] In one embodiment, the volume of the removable aeration bottle is substantially 2 liters or less (e.g., substantially 1.5 liters or less (e.g., substantially 1 liter or less, substantially 0.5 liters or less).

[0048] In one embodiment, the removable aeration bottle includes a base and an open top. In one embodiment, the aeration bottle interface is configured to seal the open top of a removable aeration bottle.

[0049] According to a second aspect of the present invention, there is provided a bulk container dispenser module for use with a bulk container. In one embodiment, the bulk container distributor module is driven (eg, directly) by the gas pressure of the gas stored in the gas reservoir.

[0050] In one embodiment, the bulk container dispenser module is configured to receive / engage a removable bulk container. In another embodiment, the bulk container distributor module is integrated into the bulk container.

[0051] In one embodiment, the bulk container dispenser module includes a flavored liquid dispenser outlet. In one embodiment, the bulk container is a variable volume (eg, collapsible) container. In another embodiment, the bulk container is a fixed volume (eg, non-collapsible or rigid) container.

[0052] In the case of a fixed volume container, in one embodiment, the bulk container may have an inlet to allow gas (e.g., air or CO2) to enter the bulk container as flavored liquid is dispensed from the bulk container.

[0053] In one embodiment, the bulk container dispenser module includes a chamber (eg, a metering chamber) configured to receive flavored liquid from a bulk container. In one embodiment, the bulk container dispenser module includes a directional valve (eg, a check flap valve) operable to allow flavoring liquid to flow from the bulk container to the chamber.

[0054] In one embodiment, the bulk container dispenser module includes a diaphragm movable between a first (e.g., retracted) configuration (e.g., first position) and a second (e.g., advanced) configuration (e.g., second position), and dispensing of flavored liquid occurs as the diaphragm moves from the first configuration to the second configuration.

[0055] In one embodiment, in the first configuration, the chamber is configured to be filled with flavored liquid from a bulk container, and movement of the diaphragm from the first configuration to the second configuration causes the flavored liquid to be dispensed from the chamber.

[0056] In one embodiment, the movement from the second configuration to the first configuration allows the chamber to be refilled with flavored liquid from a bulk container. In one embodiment, the transition from the first configuration to the second configuration occurs in response to a positive pressure from a gas reservoir.

[0057] In one embodiment, the movement from the second configuration to the first configuration occurs in response to a negative pressure. In one embodiment, the bulk container dispenser module further includes a dispenser outlet valve (eg, a pressure-activated sleeve valve) for receiving the flavored liquid from the chamber.

[0058] In one embodiment, the bulk container dispenser module further includes an outlet nozzle for receiving the flavored liquid from the dispenser outlet valve. In one embodiment, two or more of the diaphragm, distributor outlet valve, and outlet nozzle are provided as a single component (eg, a one-piece diaphragm).

[0059] According to a third aspect of the invention there is provided a method of preparing an aerated liquid using an aeration device, the method comprising: filling a chamber of a removable aeration bottle with liquid; attaching the removable aeration bottle to an aeration bottle interface of the aeration device and sealing the chamber; aerating the liquid in the chamber of the removable aeration bottle by transferring pressurized gas to the chamber during a first aeration step; transferring pressurized gas from the chamber to a gas reservoir connected to a gas outlet line during or following the first aeration step; and following the preceding steps, sealing the removable aeration bottle. The method includes reducing the gas pressure in the chamber of the removable aeration bottle (e.g., the gas pressure in the head of the removable aeration bottle chamber) and then using the reduced gas pressure in the head of the chamber to transport aerated liquid from the removable aeration bottle chamber to a receiver via an aeration liquid distributor outlet connected to an aeration bottle interface by a liquid outlet line, thereby discharging the aerated liquid from the removable aeration bottle chamber; and dispensing flavored liquid from the flavored liquid distributor into the receiver by supplying pressurized gas from a gas reservoir to a flavored liquid dispensing mechanism of the flavored liquid distributor to facilitate distribution of the flavored liquid.

[0060] In one embodiment, the initial aeration step includes increasing the gas pressure in the removable aeration bottle to a first pressure P1, and the step of reducing the gas pressure includes reducing the gas pressure in the removable aeration bottle to a second pressure P2.

[0061] In one embodiment, the step of transferring the pressurized gas from the chamber to the gas reservoir includes transferring the gas to the gas reservoir for storage at substantially the first pressure P1. In one embodiment, the flavored liquid distributor has a flavored liquid distributor outlet positioned adjacent to the aeration liquid distributor outlet.

[0062] In one embodiment, the method further includes substantially simultaneously dispensing the flavored liquid and the aerated liquid into the receptacle (eg, to achieve aerial mixing of the flavored liquid and the aerated liquid). In one embodiment, the step of dispensing flavored liquid from the flavored liquid dispenser includes inserting a flavor capsule into the flavored liquid dispenser, and pressurized gas supplied to the flavored liquid dispenser actuates a capsule opening mechanism to apply a dispensing force to the flavor capsule received within the flavored liquid dispenser (e.g., to urge the flavor capsule against an opening (e.g., breaking) member and / or to expel flavored liquid from the opened flavor capsule (e.g., by crushing the flavor capsule)).

[0063] In another embodiment, the step of dispensing flavored liquid from the flavored liquid dispenser includes providing a bulk container (e.g., received by the flavored liquid dispenser), and pressurized gas supplied to the flavored liquid dispenser drives operation of a bulk container dispenser module associated with the bulk container.

[0064] In one embodiment the aeration device is a device as defined by any embodiment of the first aspect of the invention. In one embodiment the flavour capsule is as defined by any of the embodiments of the fourth aspect of the invention.

[0065] According to a fourth aspect of the present invention there is provided a capsule (e.g. for an aeration device) comprising a sealed crushable container (e.g. a flexible bag or a bellows type container) containing a fluid to be dispensed (e.g. a dry or liquid fluid), a cap attached to an end of the crushable container defining an outlet (e.g. a central outlet) for dispensing the fluid, and at least one piercing element, wherein in use relative movement between the crushable container and the cap (e.g. between an end of the crushable container and the cap) causes the at least one piercing element to rupture the crushable container, thereby allowing fluid to flow from the crushable container to the outlet.

[0066] In one embodiment, the fluid dispensed is a dry fluid (eg, a powder). In another embodiment, the fluid dispensed is a liquid (eg, a syrup or gel). In one embodiment, the dispensing capsule is a flavored dispensing capsule and the fluid is a flavored fluid (eg, a flavored powder or a flavored liquid (eg, a flavored syrup or a flavored gel)).

[0067] In one embodiment, the flavored fluid is a flavored liquid (eg, a flavored syrup or a flavored gel). In one embodiment, at least one piercing element is provided on the cap.

[0068] In one embodiment, the at least one piercing element extends circumferentially about the outlet. In one embodiment, the at least one piercing element includes a plurality of elements (eg, spaced circumferentially about the outlet).

[0069] In another embodiment, at least one piercing element includes a substantially annular cutting edge (eg, surrounding the exit port). In one embodiment, the collapsible container is configured to be biased (eg, by a piston of a flavor dispenser) against at least one piercing element.

[0070] In one embodiment, the end of the crushable container includes a rupturable membrane facing the at least one piercing element. In one embodiment, the substantially annular cutting edge is angled relative to the rupturable membrane (eg, a leading edge of the substantially annular cutting edge forms a piercing point).

[0071] In one embodiment, an end of the crushable container is received by the cap. In one embodiment, an end of the crushable container is slidably received within the cap (e.g., with the end captured inside the cap but slidable relative to the cap between a first captured position and a second captured position).

[0072] In a first set of embodiments, the capsule further includes an outer sleeve defining a chamber for receiving the crushable container. In one embodiment, the outer sleeve is configured to substantially surround the lateral sides of the crushable container.

[0073] In one embodiment, the outer sleeve is configured to slidably receive a piston head (eg, of a decapsulation mechanism). In one embodiment, the collapsible container defines a piston contact surface (eg, at an end substantially opposite to an end of the collapsible container).

[0074] In one embodiment, the piston contact surface is recessed relative to the outer sleeve. In one embodiment, the outer sleeve is integrally formed with the cap (eg, formed as a single piece).

[0075] In a second set of embodiments (e.g., without an outer sleeve), the cap further defines a removable collar portion (e.g., a tear-away collar portion) configured to prevent relative movement between the crushable container and the cap, and removal of the removable collar portion allows relative movement between the crushable container and the cap.

[0076] In one embodiment, the removable collar is connected (eg, frangibly connected) to the top (eg, upper rim) of the cap. In one embodiment, the removable collar substantially surrounds a portion (eg, a lower portion) of the crushable container.

[0077] In one embodiment, the removable collar includes a protruding pull tab. In one embodiment, the cap further defines an inner sleeve for receiving an end of the crushable container.

[0078] In one embodiment, the end of the crushable container is movable relative to the cap from a first position to a second position, and movement of the end from the first position to the second position causes at least one piercing element to break the crushable container.

[0079] In one embodiment, a forward portion of the end of the crushable container is received within the inner sleeve when the crushable container is in the first position, and the end is configured to advance further into the inner sleeve when the crushable container moves from the first position to the second position.

[0080] In one embodiment, the cap includes a first retention member configured to engage an end of the crushable container when the crushable container is in the first position and configured to prevent movement of the end of the crushable container relative to the cap in a direction opposite to the advancement direction.

[0081] In one embodiment, the cap includes a second retaining member configured to engage an end of the crushable container when the crushable container is in the second position and configured to prevent movement of the end of the crushable container relative to the cap in a direction opposite to the forward direction.

[0082] In one embodiment, one or more of the first and second retention members include a rib (e.g., a continuous or discontinuous circumferentially extending rib) defining a first end (e.g., a rearward end relative to the advancing direction) having a tapered shape configured to allow movement of the end relative to the cap in the advancing direction (e.g., forming an inclined ramp surface to enable the end to be inserted into the cap).

[0083] In one embodiment, the or each rib further defines a second end (e.g., a tip relative to the advancement direction) configured to present movement of the end relative to the cap in a direction opposite to the advancement direction.

[0084] In one embodiment, the second end defines a profile that extends substantially perpendicular to the advancement direction / axis. In one embodiment, the collapsible container includes a body defining a collapsible bellows-like profile.

[0085] In one embodiment, the collapsible container includes a body defining a flexible pouch profile. In one embodiment, the body (eg, a body having a collapsible bellows-like profile or a flexible pouch profile) defines a fluid storage chamber for receiving a fluid and an opening to the fluid storage chamber at a tip thereof.

[0086] In one embodiment, the opening is sealed by a rupturable membrane. In one embodiment the aeration device is a device as defined by any embodiment of the first aspect of the invention.

[0087] According to a fifth aspect of the invention there is provided a capsule (e.g. a capsule for an aeration device) comprising a (e.g. substantially rigid-walled) container defining a chamber for containing a fluid (e.g. a dry or liquid fluid) to be dispensed, and a plunger sealing the chamber of the container, the plunger being movable relative to the container between a first position and a second position, the container and the plunger having interengageable portions including a frangible seal and a piercing element (e.g. an internal piercing element), the frangible seal being configured, when pierced by the piercing element, to form at least one hole in the container for dispensing the fluid from the chamber, and in use relative movement of the plunger with respect to the container from the first position to the second position causes the piercing element to at least the movement of the plunger relative to the container from the first position to the second position is in a forward direction, and the plunger is further movable in the forward direction between the second position and a third position relative to the container, the movement of the plunger relative to the container from the second position to the third position reduces a volume of a chamber enclosed by the container and the plunger and causes fluid to flow from the chamber through the at least one hole, and the movement of the plunger relative to the container from the first position to the second position includes relative movement of a localized portion (e.g., a central portion) of either the plunger or the container relative to an adjacent portion (e.g., a peripheral outer portion) of said one of the plunger or the container.

[0088] In this way, a capsule is provided in which, during initial movement from the first position to the second position, rupture of the frangible seal may be achieved with minimal reduction in the volume of the chamber enclosed by the container and the plunger and therefore minimal resistance to advancement of the drive piston.

[0089] In one embodiment, the fluid dispensed is a dry fluid (eg, a powder). In another embodiment, the fluid dispensed is a liquid (eg, a syrup or gel). In one embodiment, the dispensing capsule is a flavored dispensing capsule and the fluid is a flavored fluid (eg, a flavored powder or a flavored liquid (eg, a flavored syrup or a flavored gel)).

[0090] In one embodiment, the localized portion is a central portion and the adjacent portion is an outer portion of a periphery (eg, an outer portion of a substantially annular periphery). In one embodiment, when the plunger moves relative to the container from the first position to the second position, the localized portion moves relative to the adjacent portion from a retracted position to an advanced position.

[0091] In one embodiment, movement of the plunger relative to the container from the second position to the third position includes movement of at least an adjacent portion of said one of the plunger or the container (e.g., movement of localized and adjacent portions of said one of the plunger or the container). In one embodiment, substantially the entire plunger moves relative to the container during movement from the second position to the third position.

[0092] In one embodiment, the plunger includes a piston engaging surface. In one embodiment, the localized portion is provided on the plunger. In this embodiment, the localized portion may be associated with a raised section of the piston-engaging surface. In one embodiment, the raised section of the piston-engaging surface is configured to move to a position substantially flush with a piston-engaging surface of an adjacent portion of the plunger.

[0093] In another embodiment, the topical portion is provided in the container (eg, in the base portion of the container). In one embodiment, the piercing element is provided in a localized area (whereby movement of the localized area advances the piercing element toward the frangible seal), however, in another embodiment, the frangible seal may be provided in a localized area (whereby movement of the localized area advances the frangible seal toward the piercing element).

[0094] In one embodiment, the localized portion includes an advanceable member (eg, a central advanceable member) coupled to adjacent portions. In one embodiment, the advanceable member includes a pivotable member or a flexible member (eg, a pivotable member or a flexible central member).

[0095] In one embodiment, the localized portion includes a pivotable frusto-conical member. In one embodiment, the localized portion includes a flexible dome-shaped member. In one embodiment, the localized portion comprises a flexible convoluted (eg, flexible undulating convoluted) member.

[0096] In one embodiment, the interengageable portions are configured to form at least one aperture having a predetermined aperture profile. In this manner, a flavor capsule operable to form a controlled flow path for dispensing a fluid (e.g., in a predetermined ratio) may be provided.

[0097] In one embodiment, in the first position, an air space is provided in the chamber above the fluid, the air space being configured to allow relative movement from the first position to the second position substantially without compression of the fluid.

[0098] In one embodiment, when the plunger moves from the second position to the third position, the volume of the chamber bounded by the container and the plunger is reduced to substantially zero. In one embodiment, the plunger is slidably mounted within the chamber (e.g., with a rearward end of the plunger captured inside the chamber but slidable between a second position and a third position).

[0099] In one embodiment, the container comprises a proximal (eg, upper) end and a distal (eg, lower) end. In one embodiment, the chamber defines an opening at the proximal end for receiving the plunger.

[0100] In one embodiment, the chamber includes a peripheral chamber wall that extends between the frangible seal and the opening (eg, between a base of the container and the opening). In one embodiment, the plunger includes a head portion that includes a peripheral sealing surface configured to seal against an inner surface (eg, an inner circumferential surface) of the peripheral chamber wall.

[0101] In one embodiment, the peripheral sealing surface of the head portion is configured to seal against an inner surface of the peripheral chamber wall by deformation of the peripheral chamber wall. In one embodiment, the inner surface of the peripheral chamber wall is tapered (eg, has a cross-sectional area that decreases as the distance from the opening increases).

[0102] In one embodiment, the peripheral sealing surface of the head portion includes one or more sealing elements (eg, an expandable sealing ring) operable to seal against an inner surface of the peripheral chamber wall. In one embodiment, the piercing element includes an elongate shaft (e.g., a central shaft) In the first position, the elongate shaft can extend substantially through the entire height of the fluid to a point adjacent the frangible seal.

[0103] In one embodiment, the piercing element is provided on the plunger and the frangible seal is provided on the container, however, in another embodiment, the piercing element may be provided on the container and the frangible seal is provided on the plunger.

[0104] When a frangible seal is provided on the container, in one embodiment the frangible seal is provided on the base of the container (eg, in a central location on the base of the container). In one embodiment, the base of the container has an inner surface with a sloped profile operable to direct fluid towards the frangible seal.

[0105] In one embodiment, the plunger has an inner surface (e.g., a rear inner surface when a piercing element is provided on the plunger) that has a corresponding sloped profile of the inner surface of the base of the container, such that in the third position, the inner surface (e.g., the rear inner surface) of the plunger substantially engages the inner surface of the base of the container, e.g. to allow fluid to be substantially evacuated from the container when the plunger is in the third position).

[0106] In one embodiment, the opposing inner surfaces of the plunger and the base of the container are configured such that when the localized portion is in the advanced position, the inner surface of the plunger (e.g., the rear inner surface of the plunger if a piercing element is provided on the plunger) substantially engages the inner surface of the base of the container (e.g., to allow fluid to be substantially evacuated from the container when the plunger is in the third position).

[0107] If a piercing element is provided on the plunger, in one embodiment the piercing element extends from the head of the plunger towards the frangible seal. In one embodiment, the piercing element includes a portion that forms a front aperture (eg, a tip or spike that forms the aperture) and a portion that engages the rear aperture (eg, a shaft that engages the aperture).

[0108] In one embodiment, the rear hole engaging portion of the piercing element and the frangible seal portion include first and second cross-sectional shapes configured to combine to form at least one flow gap around the rear hole engaging portion when the rear hole engaging portion is engaged within the hole formed by the front hole forming portion causing the frangible seal portion to break.

[0109] In one embodiment, the first and second cross-sectional shapes combine to form a predetermined configuration of n flow gaps about a portion that engages the rear hole that together form an outlet for fluid to flow through.

[0110] In one embodiment, the n flow gaps are circumferentially spaced about a central axis of the frangible seal (eg, substantially equally circumferentially spaced). In one embodiment, the first cross-sectional shape is substantially circular in shape.

[0111] In one embodiment, the second cross-sectional shape is a star (e.g., a cross) or an n-sided polygon with n points. However, any combination of first and second cross-sectional shapes (e.g., combinations of first and second cross-sectional shapes of different shapes) that results in the formation of n (e.g., predictably sized) flow gaps may be suitable to achieve a desired technical effect.

[0112] In one embodiment, the first cross-sectional shape (e.g., a substantially circular shape) has a cross-sectional area A1, and the second cross-sectional shape (e.g., an n-sided shape) has a cross-sectional area A2. In one embodiment, A2>A1.

[0113] In one embodiment, the portion that engages the rear aperture of the piercing element includes a first cross-sectional shape and the frangible seal portion includes a second cross-sectional shape. However, in another embodiment, the frangible seal portion may include a first cross-sectional shape and the portion that engages the rear aperture of the piercing element may include a second cross-sectional shape. In another embodiment, the portion that engages the rear aperture of the piercing element and the frangible seal portion each define a portion of the first and second cross-sectional shapes (e.g., half of one shape and half of the other shape).

[0114] In one embodiment, the frangible seal portion includes a plurality of circumferentially spaced apart lines of weakness extending radially from a central axis (e.g., a central exit axis) and defines a displaceable flap profile that divides the frangible seal portion into a plurality of displaceable flap portions.

[0115] In one embodiment, the displaceable flap profile includes a plurality of circumferentially spaced radially extending displaceable flaps each extending from a central axis to a respective end region (e.g., with each adjacent pair of flaps separated by a line of weakness extending from the central axis and terminating at an end region).

[0116] In one embodiment, each of the plurality of displaceable flaps is formed by a bendable thin wall section (eg, a bendable thin wall section of a plastic material). In one embodiment, each of the plurality of lines of weakness is formed by a breakable thin wall (eg, a breakable thin wall of a plastic material).

[0117] In one embodiment, each of the multiple displaceable flaps has a reinforced edge extending along the line of weakness (e.g., to reinforce the flap so that it maintains its shape when the line of weakness is broken by the piercing action of the piercing element).

[0118] In one embodiment, each displaceable flap has a reinforced hinge edge (eg, formed by a reinforced region of material adjacent the notional hinge edge of the displaceable flap).

[0119] In one embodiment, the multiple lines of weakness are substantially equally circumferentially spaced about the central axis. In one embodiment, there are a plurality of lines of weakness of substantially equal radial length about the central axis.

[0120] In one embodiment, the plurality of displaceable flaps are substantially triangular shaped flaps. When the frangible seal portion includes the second cross-sectional shape, in one embodiment the displaceable flap profile is an n-gon displaceable flap profile.

[0121] In one embodiment, an n-sided displaceable flap profile includes a plurality of n lines of weakness extending from a central axis and together defining a plurality of n displaceable flaps (e.g., n substantially triangular displaceable flaps).

[0122] In one embodiment, n > 3 (such as n > 4, such as n > 5, such as n > 6). In one embodiment, the first and second cross-sectional shapes are configured such that when the n displaceable flaps are pushed into the open position, the portion of the puncture element that engages with the rear hole fully engages with the hole formed by the portion forming the front hole, such that a plurality of n flow gaps are formed around the portion that engages with the rear hole (one flow gap at each vertex of the n-sided external shape).

[0123] In one embodiment, the capsule further includes an outlet nozzle (e.g., a substantially cylindrical outlet nozzle) provided downstream of the frangible seal (e.g., on the underside of the base of the container if the frangible seal is provided on the container base) and operable to receive fluid from the at least one aperture.

[0124] In one embodiment, in the third position, the front portion of the piercing element (eg, the front portion of the portion that engages the rear aperture) extends substantially along the entire length of the outlet nozzle to form a central fluid directing element.

[0125] In one embodiment, in the third position, a front portion of the piercing element (eg, the front portion of the tip of the piercing element or the portion that engages the rear hole) protrudes beyond the outlet opening of the outlet nozzle. In one embodiment, the piercing element is configured to direct fluid along its outer surface towards the tip of the piercing element.

[0126] In one embodiment, the piercing element is configured to direct multiple parallel fluid flows towards the tip and to recombine the fluid flows into a single flow of fluid as the fluid leaves the tip.

[0127] In another embodiment, the piercing element is configured to dispense multiple sprays of fluid stream from the tip (eg, by maintaining multiple parallel streams in parallel). In one embodiment, the piercing element is configured to be biased against the frangible seal by a force applied to the outer (upper or lower) surface of the plunger and / or the outer (upper or lower) surface of the container (e.g., by a (e.g., CO2-powered) piston of a flavor dispenser).

[0128] In one embodiment the aeration device is a device as defined by any embodiment of the first aspect of the invention. Embodiments of the invention will now be described, by way of example, with reference to the accompanying drawings, in which: [Brief description of the drawings]

[0129] [Figure 1] FIG. 1 is a schematic diagram of an aeration device according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a schematic system diagram of the aeration device of FIG. 1. [Diagram 3] FIG. 2 is a schematic diagram of a portion of the aeration device of FIG. 1. [Figure 4] FIG. 2 is a schematic system diagram of some portions of the aeration device of FIG. 1. [Diagram 5] FIG. 2 is a schematic cross-sectional view of a flavor capsule according to a first embodiment of the invention for use in the aeration device of FIG. 1; [Figure 6A] A schematic cross-sectional view showing the operation of the flavor capsule of Figure 5. [Figure 6B] 6 is a schematic cross-sectional view showing the operation of the flavor capsule of FIG. 5. [Figure 6C] A schematic cross-sectional view showing the operation of the flavor capsule of Figure 5. [Figure 7A] FIG. 2 is a schematic cross-sectional view of a flavor capsule according to a second embodiment of the invention for use in the aeration device of FIG. 1. [Figure 7B] FIG. 2 is a schematic cross-sectional view of a flavor capsule according to a second embodiment of the invention for use in the aeration device of FIG. 1; [Figure 8A] 7A to 7B are schematic cross-sectional views showing the operation of the flavor capsules. [Figure 8B] 7A to 7B are schematic cross-sectional views showing the operation of the flavor capsules. [Figure 8C] 7A to 7B are schematic cross-sectional views showing the operation of the flavor capsules. [Figure 9] 2 is a schematic cross-sectional view of a flavor capsule according to a further embodiment of the invention for use in the aeration device of FIG. 1; FIG. [Figure 10A] A schematic cross-sectional view showing the operation of the flavor capsule of Figure 9. [Figure 10B] A schematic cross-sectional view showing the operation of the flavor capsule of Figure 9. [Figure 10C] A schematic cross-sectional view showing the operation of the flavor capsule of Figure 9. [Figure 11A] 10 is an exploded perspective view of the flavor capsule of FIG. 9. [Figure 11B] FIG. 10 is an exploded side view of the flavor capsule of FIG. [Figure 12A] 10 is a schematic perspective view showing the operation of the flavor capsule of FIG. 9. [Figure 12B] 10 is a schematic perspective view showing the operation of the flavor capsule of FIG. 9. [Figure 12C] 10 is a schematic perspective view showing the operation of the flavor capsule of FIG. 9. [Figure 12D] 10 is a schematic perspective view showing the operation of the flavor capsule of FIG. 9. [Figure 12E] 10 is a schematic perspective view showing the operation of the flavor capsule of FIG. 9. [Figure 12F] 10 is a schematic perspective view showing the operation of the flavor capsule of FIG. 9. [Figure 13] FIG. 10 is a schematic perspective view of the container of the flavor capsule of FIG. 9, showing a detail of the frangible seal of the pierceable base portion. [Figure 14] FIG. 14 is a schematic cross-sectional view of the frangible seal portion shown in FIG. 13. [Figure 15] FIG. 10 is a schematic perspective view of an alternative container design for use with the flavor capsule of FIG. 9, showing details of a first alternative frangible seal portion of the pierceable base portion. [Figure 16] FIG. 16 is a schematic cross-sectional view of the alternative frangible seal portion shown in FIG. 15. [Figure 17] FIG. 10 is a schematic perspective view of a further alternative container design for use with the flavor capsule of FIG. 9, showing details of a second alternative frangible seal portion of the pierceable base portion. [Figure 18A] 18 is a schematic detail view showing the operation of the alternative frangible seal portion of FIG. 17. FIG. [Figure 18B]18 is a schematic detail view showing the operation of the alternative frangible seal portion of FIG. 17. FIG. [Figure 18C] 18 is a schematic detail view showing the operation of the alternative frangible seal portion of FIG. 17. FIG. [Figure 18D] 18 is a schematic detail view showing the operation of the alternative frangible seal portion of FIG. 17. FIG. [Figure 19] FIG. 10 is a schematic perspective view of a first alternative plunger design for use in the capsule of FIG. [Figure 20A] 20 is a schematic cross-sectional view illustrating the operation of the first alternative plunger design of FIG. 19. [Figure 20B] 20 is a schematic cross-sectional view illustrating the operation of the first alternative plunger design of FIG. 19. [Figure 21] FIG. 10 is a schematic perspective view of a second alternative plunger design for use in the capsule of FIG. [Figure 22A] 22 is a schematic cross-sectional view illustrating the operation of the second alternative plunger design of FIG. 21. [Figure 22B] 22 is a schematic cross-sectional view illustrating the operation of the second alternative plunger design of FIG. 21. [Figure 23A] FIG. 2 is a schematic perspective view of a flavor capsule according to a further embodiment of the invention for use in the aeration device of FIG. 1; [Figure 23B] A cross-sectional view of the flavor capsule of Figure 23A. [Figure 24A] A schematic cross-sectional view showing the operation of the flavor capsule of Figure 23A. [Figure 24B] A schematic cross-sectional view showing the operation of the flavor capsule of Figure 23A. [Figure 24C] A schematic cross-sectional view showing the operation of the flavor capsule of Figure 23A. [Diagram 25] FIG. 2 is a schematic diagram of an aeration device according to a further embodiment of the invention. [Figure 26A] FIG. 26 is a schematic system diagram of the aeration device of FIG. 25 showing details of the flavor distributor stage. [Figure 26B] FIG. 26 is a schematic diagram of a bulk container distributor module of the aeration device of FIG. 25. [Figure 27A]FIG. 26 is a schematic diagram showing the operation of the flavor distributor stage of the aeration device of FIG. 25 during operation of the aeration device. [Figure 27B] FIG. 26 is a schematic diagram showing the operation of the flavor distributor stage of the aeration device of FIG. 25 during operation of the aeration device. [Figure 27C] FIG. 26 is a schematic diagram showing the operation of the flavor distributor stage of the aeration device of FIG. 25 during operation of the aeration device. [Figure 27D] FIG. 26 is a schematic diagram showing the operation of the flavor distributor stage of the aeration device of FIG. 25 during operation of the aeration device. [Figure 27E] FIG. 26 is a schematic diagram showing the operation of the flavor distributor stage of the aeration device of FIG. 25 during operation of the aeration device. [Figure 27F] FIG. 26 is a schematic diagram showing the operation of the flavor distributor stage of the aeration device of FIG. 25 during operation of the aeration device. [Figure 28A] FIG. 26 is a schematic cross-sectional view of an alternative bulk container distributor module for use with the aeration device of FIG. 25. [Figure 28B] FIG. 26 is a schematic cross-sectional view of an alternative bulk container distributor module for use with the aeration device of FIG. 25. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0130] 1 and 2 show a portable home aeration device 10 for preparing aerated beverages, comprising a housing 12 and an aeration stage 20 including a removable 450 ml aeration bottle 30 defining a chamber 32 for receiving a liquid to be aerated (typically water), an aeration bottle interface 40 operable to engage the removable aeration bottle 30 and seal the chamber 32, a displaceable gas cylinder 50 containing pressurized CO2 gas, a gas inlet line 60 operable to fluidly connect the gas cylinder 50 to the aeration bottle interface 40, and a gas supply mechanism 70 for controlling the supply of gas from the gas cylinder 50 via the gas inlet line 60 to the aeration bottle interface 40.

[0131] The removable aeration bottle 30 includes a base 34 and a tapered open top 36. The aeration bottle interface 40 is pivotable to mount and remove the removable aeration bottle 30 along a vertically inclined axis and is configured to seal the open top 36 of the removable aeration bottle 30 when the aeration bottle 30 is fully engaged. The aeration bottle interface 40 includes a gas inlet tube 62 forming part of a gas inlet line 60, the gas inlet tube 62 configured to extend inside the chamber 32 of the removable aeration bottle 30 when the removable aeration bottle 30 is engaged by the aeration bottle interface 40, and has a gas inlet nozzle 62A for releasing pressurized gas into the liquid contained within the chamber 32.

[0132] As shown in FIG. 3, the gas supply mechanism 70 includes a valve 72 operable to selectively allow gas to flow from the gas cylinder 50 and a pivotable valve actuation member 74 driven by a gas supply mechanism solenoid 76 .

[0133] In addition to the aeration stage 20 , the aeration device 10 further includes an electronic controller 80 and two optionally operable stages: an aeration liquid distributor stage 100 and a flavor distributor stage 200 .

[0134] The aeration liquid distributor stage 100 includes an aeration liquid distributor outlet 110 for distributing aeration liquid into a beverage container 150, a liquid outlet line 120 operable to fluidly connect the aeration bottle interface 40 to the aeration liquid distributor outlet 110 to allow aeration liquid to flow from the chamber 32 of the removable aeration bottle 30 to the aeration liquid distributor outlet 110, and a liquid flow controller 130 for controlling the discharge of aeration liquid from the removable aeration bottle 30 via the liquid outlet line 120 to the aeration liquid distributor outlet 110. The liquid flow controller 130 includes a liquid flow solenoid valve 132 and a flow regulator 134.

[0135] The liquid outlet line 120 includes a dip tube 122 supported by the aeration bottle interface 40 having an opening 122A for receiving aeration liquid positioned at the bottom of the chamber 32 when the removable aeration bottle 30 is engaged by the aeration bottle interface 40.

[0136] The flavor distributor stage 200 includes a flavor liquid distributor 210 including a flavor liquid distributor outlet 212 and a flavor distributor mechanism 214, a gas outlet line 220 operable to supply gas from the headspace of the removable aeration bottle 30 to the flavor liquid distributor 210, the gas outlet line 220 including a gas outlet 222 provided within the aeration bottle interface 40, a gas outlet solenoid valve 230 for controlling the discharge of gas from the removable aeration bottle 30 via the gas outlet line 220 to the flavor distributor mechanism 214, a release valve 232, and a pressure control stage 240 fluidly connected to the gas outlet line 220 between the gas outlet 222 and the gas outlet solenoid valve 230.

[0137] The flavored liquid dispenser outlet 212 is positioned adjacent to the aerated liquid dispenser outlet 110 to allow both flavored liquid and aerated liquid to be dispensed simultaneously into the beverage container 150, and the flavored liquid dispenser outlet 212 and the aerated liquid dispenser outlet 110 are positioned to provide aerated mixing of the flavored liquid and aerated liquid within the beverage container 150. In this manner, the need to clean the flavored liquid from the device after dispensing the flavored liquid is minimized.

[0138] The flavor dispenser mechanism 214 includes a flavor capsule receiver 216 for receiving a disposable flavor capsule 300 and a pressure actuated piston 218. The piston 218 is actuated via a gas outlet line 220 by gas pressure from gas pressure generated in the head of the chamber 32 of the removable aeration bottle 30 during the aeration process, and acts as a syrup pump.

[0139] As shown in FIG. 5, the flavor capsule 300 includes a sealed crushable container 310 containing a flavored syrup 320, a container receiving portion 332 for slidably receiving an end 312 of the crushable container 310, and a cap 330 defining a base 334 defining a central outlet 336 for dispensing the flavored syrup 320, and at least one piercing element 338 extending from the base 334 and extending circumferentially about the central outlet 336.

[0140] The crushable container 310 includes a flexible pouch portion 314 defining a chamber 316 for receiving a flavored syrup 320, a piston contact surface 314A, and a rupturable membrane portion 318 sealing an opening to the chamber, the rupturable membrane portion 318 being located at an end 312 of the crushable container.

[0141] The at least one piercing element 338 may include multiple elements circumferentially spaced about the central outlet 336 or a substantially annular cutting edge that substantially encloses the central outlet 336 . The pressure control stage 240 includes a gas reservoir 250 in the form of a 27 ml gas reservoir chamber 252 with an associated check valve 254, an exhaust solenoid valve 242 operable to release gas pressure within the chamber 32 to the environment, a pressure switch 244, and safety features in the form of a graphite burst disk 246 and a mechanical pressure relief valve 248.

[0142] The electronic controller 80 responds to user inputs to control the operation of each of the gas supply solenoid 76, the liquid flow solenoid 132, the gas outlet solenoid 230, the dump valve 232, and the exhaust solenoid 242. A pressure switch 244 is used to monitor the pressure in the chamber 32 and instruct the system to a) shut off the gas supply solenoid 76 when the appropriate carbonization pressure is achieved in the chamber, and b) open the exhaust solenoid 242 to reduce the pressure in the chamber to a predetermined aeration liquid dispensing level.

[0143] In use, aeration liquid may be dispensed from the aeration device 10 in two unique ways: the user may disconnect the removable aeration bottle 30 from the aeration bottle interface 40 and dispense aeration liquid from the removable aeration bottle 30 (e.g., if no flavoring is being added or flavoring from a bottle of flavored liquid is desired), or the user may leave the removable aeration bottle 30 sealingly connected to the aeration bottle interface 40 and operate the controller to dispense aeration liquid from the aeration liquid distributor outlet 80, with or without flavoring.

[0144] When the aeration device 10 is activated, the electronic controller 80 opens the gas supply solenoid 76 to initiate an initial aeration step that aerates the liquid contained within the removable aeration bottle. Typically, this generates a headspace pressure in the range of 600-1000 kPa (6-10 bar), and gas at this headspace pressure collects in the gas reservoir chamber 252 via the open gas exhaust line 220.

[0145] If dispensing from the aeration liquid distributor outlet is not required, the removable aeration bottle can be removed at this stage and the controller will vent gas from the gas reservoir chamber 252 via the release valve 232 and exhaust solenoid valve 242.

[0146] If dispensing from the aeration liquid distributor outlet is selected, the electronic controller 80 opens the exhaust solenoid valve 242 to reduce the headspace pressure to the preferred liquid transfer value (about 300 kPa (about 3 bar) in this example), then closes the exhaust solenoid valve 242 and opens the liquid flow solenoid valve 132 to allow the aeration liquid to be transferred from the removable aeration jar 30 through the liquid outlet line 120 to the aeration liquid distributor outlet 80 using the gas pressure generated in the head of the sealed chamber 32 during the aeration process. The flow regulator 104 maintains a substantially constant volumetric flow rate of aeration liquid from the liquid distributor outlet 80 as the aeration liquid is discharged from the removable aeration jar 30 to the aeration liquid distributor outlet 80. Discharge of aeration liquid from the chamber 32 continues until the head pressure is insufficient to continue.

[0147] When flavoring dispensing is selected, the electronic controller 80 additionally opens the gas outlet solenoid valve 230 in parallel with the liquid flow solenoid valve 132 to allow transfer of pressurized gas from the gas reservoir chamber 252 via the gas outlet line 220 to the flavor distributor mechanism 214. Because the gas in the gas reservoir chamber 252 is substantially at the initial aeration pressure, the flavor distributor mechanism is driven by a higher pressure than the aeration liquid distributor. The relatively high pressure gas from the gas reservoir chamber 252 drives the piston 218 of the flavor dispenser mechanism 214 towards the piston contact surface 314A of the installed flavor capsule 300, urging the end 312 of the crushable container 310 towards the base 334 of the cap 330, causing the at least one piercing element 338 to break the rupturable membrane 318 of the crushable container 310, allowing the flavored syrup 320 to flow from the crushable bag 310 to the central outlet 336 (FIGS. 6A and 6B). Once the rupturable membrane 318 is broken, the gas pressure continues to drive the piston 218 forward to substantially collapse the crushable container 310, thereby carrying substantially all of the flavored syrup 320 from the flavor capsule 300 and out the flavored liquid dispenser outlet 212 (FIG. 6C). This metered dose (an accurate measurement of syrup into the aerated liquid) can be added with a flavor dispenser mechanism 214 operated using gas pressure that would otherwise be wasted in a conventional home carbonation device.

[0148] Referring to FIG. 4, an example of a typical operating sequence is shown for a situation where dispensing from the aeration liquid distributor outlet is selected in combination with dispensing of flavoring. Phase 1 The exhaust valve 242 closes.

[0149] Pause (0.2 seconds). The gas supply valve 76 is opened (pressure sensor set to 800 kPa (8 bar)). Pause (0.2 seconds).

[0150] Gas supply valve 76 closes. Phase 2 The exhaust valve 242 opens (pressure drops to 300 kPa (3 bar)).

[0151] The exhaust valve 242 closes. Pause (0.5 seconds). The liquid flow valve 132 opens (14 seconds).

[0152] The gas outlet solenoid valve 230 opens after 3 seconds. The liquid flow valve 132 and the gas outlet solenoid valve 230 are closed. Phase 3 The exhaust valve 242 opens.

[0153] Advantageously, the provision of gas reservoir 250 allows the gas pressures used for aeration liquid dispensing and flavoring dispensing to be different and set to values ​​optimal for different tasks. For example, in some circumstances a lower pressure may be desirable in the aeration liquid dispensing step to ensure a desired retention level of carbonation after dispensing of the aeration liquid. Furthermore, gas reservoir 250 may be sized to allow multiple charges of pressurized gas (e.g., to allow for the use of multiple flavor capsules, which may be desirable for machines that can accommodate large volume removable aeration bottles).

[0154] 7A and 7B show a first alternative embodiment of a flavor capsule 300' for use with a modified form of the aeration device 10 of FIG. 1, the flavor capsule 300' comprising: an outer sleeve portion 331A for receiving a sealed crushable container 310' containing a flavored syrup 320' and a body portion 314' of the crushable container 310'; a cap portion 331B defining an inner sleeve 332' for slidably receiving an end 312' of the crushable container 310'; an integral outer sleeve / cap 330' including a base portion 334' defining a central outlet 336' for dispensing the flavored syrup 320'; and at least one piercing element 338' extending from the base portion 334' adjacent the central outlet 336'.

[0155] The body portion 314' of the collapsible container 310' has a folded bellows shape and defines a chamber 316' for receiving flavored syrup 320', a piston contact surface 314A' and a rupturable membrane portion 318' sealing an opening to the chamber 316', the rupturable membrane portion 318' being located at an end 312' of the collapsible container.

[0156] As shown, the cap portion 331B further includes an intermediate sleeve 333 for slidably receiving the locking flange 312A provided on the end 312' of the crushable container, the intermediate sleeve 333 including first and second retaining members 333A, 333B characterized by a tapered shape that allows advancement of the locking flange 312 in an advancement direction but prevents withdrawal of the locking flange 312 in the opposite direction, thereby retaining the crushable container 310' within the integral outer sleeve / cap 330'.

[0157] In one embodiment, body portion 314' is formed from high performance polyethylene (HPPE). In one embodiment, the one-piece outer sleeve / cap 330' is formed from high density polyethylene (HDPE).

[0158] In one embodiment, the rupturable membrane portion 318' is a welded HPPE membrane (eg, welded in a process on the filling line). 8A-8C, the piston 218 of the aeration device 10 advances toward the piston contact surface 314A' of the installed flavor capsule 300', urging the end 312' of the crushable container 310' toward the base portion 334' of the cap 330', causing at least one piercing element 338' to break the rupturable membrane portion 318' of the crushable container 310', allowing the flavored syrup 320' to flow from the crushable container 310' to the central outlet 336' (FIGS. 8A and 8B). Once the rupturable membrane portion 318' breaks, the gas pressure continues to advance the piston 218', substantially collapsing the crushable container 310', thereby forcing substantially all of the flavored syrup 320' out of the flavor capsule 300' and out of the flavored liquid dispenser outlet 212 (FIG. 8C).

[0159] 9-14 show a second alternative embodiment of a flavour capsule 400 for use in the aeration device 10. In the embodiment shown in FIG. The flavor capsule 400 includes a two-part structure including a substantially rigid container 410 defining a chamber 420 for containing a flavored syrup 430, and a plunger 440 slidably mounted within the container chamber 420 and sealing the chamber 420. The container 410 includes a proximal end 410A at which an opening 422 to the chamber 420 is located, and a distal end 410B forming a base 412 with a cylindrical outlet nozzle 414. An air space 426 is provided above the flavored syrup 430 within the chamber to permit movement of the plunger 440 from a first position to a second position without requiring substantially any compression of the flavored syrup.

[0160] 11A-11B and 10, the container 410 and plunger 440 have interengageable portions including a central frangible seal portion 450 provided on the base 412 of the container 410 directly above the outlet nozzle 414 and a central piercing element 460 provided on the plunger 440. The frangible seal portion 450 is configured to form a central hole 470 for dispensing flavored syrup when pierced by the piercing element 460.

[0161] As shown in Figures 11A and 11B, the chamber 420 includes a tapered peripheral chamber wall 424 extending between the base 412 of the container 410 and the opening 422, the peripheral chamber wall 424 having a cross-sectional area that decreases as the distance from the opening 422 increases.

[0162] The plunger 440 includes a head portion 442 including an upper surface 441 defining a piston contact surface 441A (including a raised central spigot section 441B and an annular peripheral portion 442B) configured to be engaged by the piston 218, and a peripheral sealing surface 444 configured to seal against an inner circumferential surface 424A of the peripheral chamber wall 424, the peripheral sealing surface 444 including at least one sealing ring 446. In terms of taper, the head portion 442 is configured to seal against the inner circumferential surface 424A of the peripheral chamber wall 424 by deformation of the peripheral chamber wall 424.

[0163] As shown in FIGS. 10A-10C, head portion 442 of plunger 440 includes a pivotable localized central portion 442A having a frustoconical shape with an outer periphery that surrounds piercing element 460 and is pivotally connected to an annular peripheral portion 442B.

[0164] 10B, advancement of the drive piston (not shown) engages the raised central spigot section 441B, pivoting the localized central portion 442A and urging the piercing element 460 against the frangible seal 450 while the annular peripheral portion 442B remains in its initial position. In this manner, rupture of the frangible seal 450 to form a hole 470 for dispensing the flavored syrup 430 from the chamber 420 is achieved with minimal resistance to the drive piston (e.g., minimal air compression, no sliding friction between the plunger 440 and the container 410).

[0165] As shown, the base 412 of the container 410 has an inner surface 412A with an inclined profile that operates to direct the flavoring syrup 430 toward the frangible seal portion 450, and the head portion 442 of the plunger 440 has a rear inner surface 442A with a corresponding inclined profile such that when the local central portion 442A is moved to the forward position, whereby, in the third position, the rear inner surface 442A of the head portion 442 substantially engages the inner surface 442A of the base 412 of the container 410.

[0166] The piercing element 460 includes a shaft 462 that engages a rearward hole extending from the head portion 442 of the plunger 440 through the flavoring syrup 430 toward the frangible seal portion 450, and a spike 464 that forms a forward hole.

[0167] As shown, the shaft 462 that engages the rearward hole and the spike 464 that forms the forward hole have a cross-shaped cross-section. The shaft 462 that engages the rearward hole has a first cross-sectional shape with a cross-sectional area A1, and the frangible seal portion 450 includes a second cross-sectional shape with a cross-sectional area A2 (where A1 < A2) configured to combine with the first cross-sectional shape of the shaft 462 that engages the rearward hole to form a predetermined flow gap configuration.

[0168] In the example shown, the first cross-sectional shape is a star shape (a cross shape in this example) having n tips, and as shown in FIGS. 13 and 14, the second cross-sectional shape is a flat circular cross-sectional shape with a constant diameter. In this way, the first and second cross-sectional shapes are combined such that when the shaft 462 that engages the rearward hole is fully engaged within the hole 470 in which it is formed with one flow gap at each vertex of the n-sided star-shaped configuration, a predetermined configuration of n substantially equally circumferentially spaced flow gaps 472 is formed centered on the shaft 462 that engages the rearward hole. This controls the flow of fluid flowing out of the chamber 420.

[0169] When broken by the front hole forming spike 464 (FIGS. 12D-12F), the displaceable triangular flap portion 454 folds outward to form four triangular petals and four small flow gaps 472.

[0170] During an initial piercing step in use, the localized central portion 442A of the plunger 440 is movable from a first position (FIG. 10A) to a second position (FIG. 10B) relative to the container 410 and the annular surrounding portion 442B (e.g., by a drive piston 218 actuated by CO2 pressure driving against a central spigot 441B provided on the upper surface 441), and the movement of the localized central portion 442 of the plunger 440 from the first position to the second position relative to the container 410 causes the piercing element 460 to pierce the frangible seal portion 450 to form a hole 470 for dispensing the flavored syrup 430 from the chamber 420.

[0171] Once the frangible seal 450 is punctured, the entire plunger 440 (wherein the local central portion 442A is in an advanced position) can be further moved relative to the container 410 to a third position (FIG. 10C) during the expelling step, where the drive piston abuts the central spigot 441B and the annular peripheral portion 442B, causing the flavored syrup 430 to flow out of the chamber 420 and through the hole 470 as the plunger 440 moves from the second position to the third position relative to the container 410.

[0172] In the third position, the piercing elements 460 extend substantially along the entire length of the outlet nozzle 414 to form a central flavored flow directing element. Both portions 410 and 440 of the flavor capsule 400 (as well as related portions of the aeration device 10) may be designed to be made from a range of biomaterials, biodegradable and compostable materials, as well as thermoplastic polymers.

[0173] The flavored syrup runs down the sides of the piercing elements 460 and returns to a single stream of fluid as the flavored syrup leaves the top. In an alternative design, the spikes may not redirect the individual sprays back into a single stream such that multiple sprays of fluid are generated.

[0174] Once the frangible seal 450 is broken, the gas pressure continues to drive the piston 218 forward, forcing substantially all of the flavored syrup 430 out of the flavor capsule 400 and out the exit nozzle 414 .

[0175] Figures 15 and 16 show an alternative container 410' for use with flavor capsule 400 (common features labeled appropriately) and include an alternative frangible seal portion 450' in which the flat, constant diameter circular cross-sectional shape of the frangible seal portion 450 is replaced with a frusto-conical circular cross-sectional shape 450'.

[0176] 17 and 18A-D show yet another alternative container 410″ for use with a flavor capsule 400 (again with common features appropriately labeled) including a frangible seal portion 450″ for use with a piercing element having a circular cross-sectional shape. As shown, the frangible seal portion 450″ defines a displaceable flap shape 452 including a plurality of substantially equal length and equally circumferentially spaced n lines of weakness 453, each formed by a breakable thin-walled section of plastic material and extending radially from a central axis “A” to an end region 453A. The n lines of weakness 453 divide the frangible seal portion 450 into a plurality of n circumferentially spaced radially extending displaceable triangular flap portions 454, each formed by a bendable thin-walled section of plastic material and separated by the lines of weakness 453. In an alternative design, the displaceable flap shape may be an add-on piece or may be a two-shot molded piece incorporating two different materials.

[0177] Each of the plurality of n displaceable triangular flaps 454 has a reinforced edge 454A extending along the line of weakness 453 to encourage the flap to maintain its shape when the line of weakness is broken by the puncturing action of the puncturing element, and a reinforced hinge edge 454B formed by a reinforced region 455 of material adjacent each hinge edge.

[0178] When broken by the front aperture forming spike 464 (FIGS. 18A-18D), the displaceable triangular flap portion 454 is bent outwardly forming triangular petals and six small flow gaps 472.

[0179] As with the previous embodiment, the flavored syrup flows down the sides of the piercing element and returns to a single fluid stream upon leaving the tip. Again, in an alternative design, the spikes may not redirect the individual jets back into a single stream so that multiple jets of fluid are generated.

[0180] Figures 19 and 20A-B show an alternative plunger 440' for use in flavor capsule 400 (with common features appropriately labeled) and includes a localized central portion 442A' having a flexible dome-shaped profile configured to operate in an equivalent manner to localized central portion 442A.

[0181] Figures 21 and 22A-B show yet another alternative plunger 440'' for use in flavor capsule 400 (with common features appropriately labeled) including a localized central portion 442A'' having a flexible, undulating, convoluted profile configured to operate in a manner equivalent to localized central portion 442A.

[0182] 23A and 23B show a further alternative embodiment of a flavor capsule 500 for use with a modified form of the aeration device 10 of FIG. 1, the flavor capsule 500 including a sealed crushable container 510 containing a flavored syrup 520, a cap 530 and a tear-off collar 540 having a pull-tab portion 542.

[0183] The cap 530 includes a flared upper portion 530A and a cylindrical lower portion 530B. The lower portion 530B defines a sleeve 532 for slidably receiving the end 512 of the crushable container 510, a base portion 534 defining a central outlet 536 for dispensing the flavored syrup 520, and at least one piercing element 538 extending from the base portion 534 adjacent the central outlet 536. A tear collar 540 is frangibly connected to the upper periphery 531 of the flared upper portion 530A and configured to surround and abut the tip 514B of the body portion 514 of the crushable container 510.

[0184] The body portion 514 of the collapsible container 510 has a folded bellows shape and defines a chamber 516 for receiving flavored syrup 520, a piston contact surface 514A and a rupturable membrane portion 518 sealing an opening to the chamber 516, the rupturable membrane portion 518 being located at the end 512 of the collapsible container.

[0185] As shown, inner sleeve 532 and end 512 include cooperating retention members 550A, 550B (e.g., protruding annular ribs) to permit advancement of end 512 in an advancement direction but prevent withdrawal of end 512 in the opposite direction, thereby retaining crushable container 510 within cap 530.

[0186] 24A-24C, the tear collar 540 must first be removed (e.g., by a user pulling on the pull tab portion 542) to allow the end 512 of the crushable container 510 to be advanced towards the at least one piercing element 538. In this manner, accidental actuation of the flavor capsule 500 during transport or being dropped can be prevented. The tear collar 540 may also function as a tamper evident feature.

[0187] In one embodiment, body portion 514 and cap 530 are formed from medium density polyethylene (MDPE). In one embodiment, the rupturable membrane portion 518 is a heat sealed membrane (eg, heat sealed in a process on the filling line).

[0188] In one embodiment, the flavor capsules 300, 300', 400, 500 may include a bar code and the electronic controller 80 operates to select dispensing parameters (e.g., degree of aeration and / or water volume required) based on the bar code (e.g., using a bar code reader module) to achieve further improved flavor dosage.

[0189] According to a further embodiment of the present invention, Fig. 25 shows an alternative portable home aeration device 10' for preparing an aerated beverage based on the aeration device 10 (common features labeled accordingly), in which the capsule 300 and associated capsule dispensing components are replaced by a removable bulk container 600 having an integrated bulk container dispensing module 610 incorporating a flavored liquid outlet 212'. Additionally, an optional low pressure air pump 260 is connected to the gas outlet line 220' via a check valve 262 to provide a constant flow of low pressure gas to the headspace of the chamber 32' during the dispensing phase and to transfer the aerated liquid from the removable bottle 30' to the aeration liquid dispenser outlet 110'.

[0190] The bulk container 600 includes a breathable fixed volume (e.g., non-crushable) bottle 602 having a neck 604. The bulk container 600 is configured to deliver multiple doses of flavored syrup over multiple uses of the aeration device 10'. Because the bulk container dispensing module 610 and flavored liquid outlet 212' are integrated into the container, bulk containers of different flavors can be easily interchanged without risk of flavor contamination. In general, the bulk container 600 can be a simple plug-in device. No retention feature is required because the pressure at the bulk container interface is substantially balanced.

[0191] As shown in Figures 26A and 26B, the bulk container dispensing module 610 includes an upper cap portion 620 and a lower housing 630 configured to engage with a bulk container receiver 270 supported by the housing 12', the bulk container receiver 270 including a base 270A and an upstanding annular wall 270B extending from the base.

[0192] Top cap portion 620 includes a collar 620A configured to receive neck 604 of bottle 602, and a base portion 620B. Base portion 620B defines a plurality of inlet holes 622 associated with one-way inlet flap valves 623 to allow flavored syrup to flow out of bottle 602 under gravity, and a gas line 624 extending from a radially outermost gas inlet 626 to a raised central gas outlet 628 associated with a gas outlet valve 629. An annular seal 621 seals the connection between bottle 602 and top cap portion 620.

[0193] The lower housing 630 includes a cylindrical upper housing section 632 defining a metering chamber 634 configured to receive flavored syrup from the bulk container 600 via the inlet aperture 622, and a reduced diameter cylindrical nozzle housing 636 configured to engage an aperture 274 provided in the base 270A of the bulk container receiver 270. The nozzle housing 636 further defines a gas line 670 extending between a gas inlet 672 and the metering chamber 634.

[0194] A central shaft 650, including a narrower diameter tip 650A and a wider diameter rearward end 650B, is supported by the upper cap portion 620 and extends centrally through the metering chamber 634. The nozzle housing 636 defines a central bore 638 for receiving the tip 650A of the central shaft 650. The central shaft 650 defines a central passage 652 extending between an inlet port 654 and an outlet port 656.

[0195] Attached to central shaft 650 is a flexible silicone diaphragm component 700 that includes an upper diaphragm portion 710 that is received in metering chamber 634 and a lower diaphragm portion 720 that is received in bore 638 .

[0196] Upper diaphragm portion 710 is coupled to a lower end of rearward end 650 B of central shaft 650 and is coupled to an upper periphery of metering chamber 634 . The lower diaphragm portion 720 forms a pressure actuated sleeve valve 722 that covers the outlet port 656 and includes an end 730 that defines an outlet nozzle 740 that functions as the flavoring liquid outlet 212'.

[0197] As shown, outlet nozzle 740 and sleeve valve 722 formed by lower diaphragm portion 720 and upper diaphragm portion 710 are formed as a single continuous piece of flexible silicone.

[0198] Upper diaphragm portion 710 is movable within metering chamber 634 between a retracted position (shown in FIG. 27D ) and an advanced position (shown in FIG. 27F ), and movement from the retracted position to the advanced position causes flavored syrup received within metering chamber 634 to enter inlet port 654, flow through central passageway 652 to outlet port 656, and pressure actuated sleeve valve 722 dispenses the flavored syrup through outlet nozzle 740. Movement of upper diaphragm portion 710 from the advanced position to the retracted position causes flavored syrup to enter metering chamber 634 from bottle 602.

[0199] The annular wall 270B of the bulk container receiver 270 defines an open-top CO2 collection area 272 (e.g., open bucket area) that surrounds the bulk container dispensing module 610 and is configured to receive CO2 from the removable bottle 30' during the exhaust cycle via a CO2 supply tube 274 connected to a venturi nozzle 280. The venturi nozzle 280 is configured to receive gas flowing from the removable aeration bottle 30' to the CO2 collection area 272 during the exhaust cycle and includes an upstream tap 282 connected to a gas inlet 672. The exhaust gases that enter the CO2 collection area 272 via the CO2 supply tube 274 surge into the environment surrounding the gas inlet 626 of the dispensing module 610, allowing CO2 to be drawn into the bottle 602 via the gas line 624 / gas outlet 628 as the metering chamber 634 fills with flavored syrup. The open top allows excess CO2 to vent from CO2 collection area 272 to the atmosphere, preventing pressure from building up within bottle 602. In this example, a CO2 surge is shown, but a simple air-filled vent is also possible (e.g., if the flavored syrup in bottle 602 is suitable for extended contact with air).

[0200] In operation, aeration device 10' provides the same functionality as aeration device 10 (e.g., the ability to dispense aeration liquid via aeration liquid distributor outlet 80', either directly from removable aeration bottle 30' or with optional flavoring via flavoring liquid outlet 212'). However, as shown in Figures 27A-27F, the gas cycle is modified to account for the changes in the internal structure.

[0201] In step 1 (FIG. 27A), the system is at rest with the upper diaphragm portion 710 in the advanced position. The exhaust solenoid valve 242' is open and the gas reservoir 250' connection via the 3 / 2 gas outlet solenoid valve 230' is closed.

[0202] In step 2 (FIG. 27B), the exhaust solenoid valve 242' is closed while the system is carbonating. During this step, pressurized CO2 from the headspace of the removable aeration bottle 30' is passed to the gas reservoir 250' for later use in dispensing flavored syrup. The gas reservoir 250' connection via the 3 / 2 gas outlet solenoid valve 230' remains closed to prevent the release of pressurized CO2 from the gas reservoir 250'.

[0203] In step 3 (FIG. 27C), the exhaust solenoid valve 242′ is opened as the system performs an exhaust cycle to reduce the pressure in the headspace of the removable aeration bottle 30′ to a lower pressure (in this case, to approximately atmospheric pressure, since the dispensing of the aeration liquid uses gas pressure provided by the air pump 260). As the exhausted CO2 passes through the venturi nozzle 280, it creates a negative pressure at the upstream tap 282, sucking the upper diaphragm portion 710 to a retracted position and filling the metering chamber 634 with flavored syrup. Again, the gas reservoir 250′ connection through the 3 / 2 gas outlet solenoid valve 230′ remains closed to prevent the release of pressurized CO2 from the gas reservoir 250′. In the case of multiple carbonation cycles, the exhaust solenoid valve 242′ can be operated during the carbonation cycle and at the end of carbonation.

[0204] In step 4 (FIG. 27D), the evacuation cycle is completed and metering chamber 634 is completely filled with a measured amount of flavored syrup. In step 5 (FIG. 27E), the system is dispensing, where the air pump 260 pumps low pressure air into the headspace of the removable aeration bottle 30', forcing aerated liquid up through the dip tube 122' to the aeration liquid distributor outlet 80'. In this dispensing mode, the exhaust solenoid valve 242' is closed, the gas reservoir 250' connection through the 3 / 2 gas outlet solenoid valve 230' is opened, and stored pressurized CO2 from the gas reservoir 250' flows into the metering chamber 640 through the gas inlet 672. This positive gas pressure from the gas reservoir 250' collapses the upper diaphragm portion 710, forcing the flavored syrup out the outlet nozzle 740 and joining the flow of aerated liquid through the aeration liquid distributor outlet 80'. This flavored syrup dispensing action continues until the metering chamber 634 is emptied and the upper diaphragm portion 710 is returned to the retracted position.

[0205] In step 6 (FIG. 27F), the dispensing process is completed and the system returns to its resting state with the exhaust solenoid valve 242' reopened and the gas reservoir 250' connection via the 3 / 2 gas outlet solenoid valve 230' closed.

[0206] In this manner, a system is provided in which stored gas from gas reservoir 250' is used to collapse upper diaphragm portion 710 and dispense flavored syrup received in metering chamber 634, vented CO2 after a carbonation cycle is used to refill bottle 602, and venturi nozzle 280 is used to create a reduced pressure in metering chamber 634 and suction upper diaphragm portion 710 to refill the metering chamber.

[0207] In one embodiment, the removable bulk container 600 is configured to be placed in the bulk container receiver 270 in a predetermined orientation (e.g., to prevent accidental disconnection of the bottle and dispenser when installed in the machine). In one example, the bottle 602 may have a substantially cylindrical shape with a single flat side portion (e.g., anti-rotation portion). The bottle 602 may be configured to be placed in the bulk container receiver in a single orientation relative to the housing 12'. This also allows for orientation of the bottle 602 for "smart" reading of product data (e.g., a bar code read by the electronic controller 80') to set the carbonation level and water volume of the finished beverage.

[0208] As an alternative to the fixed volume bulk container 600 described above, a simplified version of the bulk container dispensing module 610 may be used for variable volume bulk containers (e.g., bags or crushable bottles) where the gas inlet to the bottle may be omitted.

[0209] FIG. 28A illustrates an example of a first alternative bulk container dispensing module 610' that includes a simple center sealing plug for use with a variable volume container. FIG. 28B illustrates an example of a second alternative bulk container dispensing module 610'' that includes a membrane piercing element 680 for use with a variable volume container that includes a membrane 608 for aseptically filled products.

[0210] As will be appreciated, the portable home aeration device 10, 10' provides significant enhancements and flexibility over conventional home carbonation devices, while being substantially powered by the gas pressure available within the headspace of conventional home carbonation devices. In this manner, the enhancements and increased flexibility are provided with minimal added complexity and cost to the aeration device.

Claims

1. 1. An apparatus for preparing an aerated beverage, comprising: An aeration stage, a removable aeration bottle defining a chamber for receiving the liquid to be aerated; an aeration bottle interface operable to engage the removable aeration bottle and seal the chamber; a gas inlet line operable to fluidly connect a gas source to the aeration bottle interface; a gas supply mechanism for controlling the supply of gas from the gas source through the gas inlet line to the aeration bottle interface; an aeration liquid distributor stage including an aeration liquid distributor stage, an aeration liquid distributor outlet; a liquid outlet line operable to fluidly connect the aeration bottle interface to the aeration liquid distributor outlet to allow aeration liquid to flow from the chamber of the removable aeration bottle to the aeration liquid distributor outlet; a liquid flow control device for controlling the discharge of the aeration liquid from the removable aeration bottle through the liquid outlet line to the aeration liquid distributor outlet; an aeration liquid distributor stage including A flavoring liquid distributor stage, comprising:

1. A flavored liquid dispenser comprising: a flavored liquid distributor outlet; A gas pressure operated flavor liquid distributor mechanism; a flavoring liquid dispenser comprising: a gas outlet line including a gas outlet provided in the aeration bottle interface; a flavoring liquid distributor stage including An apparatus comprising: The apparatus further comprises a pressure control stage; The pressure control stage includes: a gas reservoir connected to the gas outlet line and operable to store pressurized gas received from the removable aeration bottle during a first aeration step; an exhaust mechanism operable to vent gas from the removable aeration bin during a subsequent venting step to reduce the level of gas pressure within the removable aeration bin prior to discharge of aeration liquid from the removable aeration bin via the aeration liquid distributor stage; An apparatus comprising:

2. The apparatus of claim 1 , wherein the gas reservoir comprises a chamber fluidly connected to the gas outlet line via a directional flow valve.

3. 3. The device according to claim 1 or 2, The gas supply mechanism maintains the gas pressure in the removable aeration bottle at a first pressure P during a first aeration stage. １ and The pressure control stage regulates the gas pressure in the removable aeration bottle to a second pressure P via the exhaust mechanism during a subsequent venting step prior to the discharge of the aeration liquid. ２ 4. The apparatus of claim 1, wherein the apparatus is operable to reduce the

4. The gas reservoir is at substantially the first pressure P １ 4. The apparatus of claim 3, operable to receive and store pressurized gas at a

5. 5. The apparatus of claim 1, wherein the liquid flow control device further comprises a valve and a flow regulator operable to maintain a substantially constant flow rate of aeration liquid from the aeration liquid distributor outlet as the aeration liquid is discharged from the removable aeration bin to the aeration liquid distributor outlet.

6. 6. The apparatus of claim 1, wherein the apparatus is configured to transport aeration liquid from the removable aeration bottle to the aeration liquid distributor outlet using gas pressure generated in the headspace of the sealed chamber during the aeration step.

7. 6. The apparatus of claim 1, further comprising a pump operable to supply pressurized gas to the removable aeration bottle to transport aeration liquid from the removable aeration bottle to the aeration liquid distributor outlet.

8. 8. The apparatus of claim 7, wherein the pressure control stage is operable to reduce gas pressure in the removable aeration bottle during a subsequent venting step before allowing pressurized gas from the pump to enter the removable aeration bottle.

9. 9. The apparatus of claim 1, wherein the liquid outlet line includes a dip tube having an opening for receiving aeration liquid positioned at a lower portion of the chamber when the removable aeration bottle is engaged by the aeration bottle interface.

10. 10. The apparatus of claim 1, wherein the flavored liquid distributor outlet is positioned adjacent to the aeration liquid distributor outlet.

11. The device of claim 10 , wherein the flavored liquid distributor outlet and the aeration liquid distributor outlet are configured for aerial mixing outside of the device.

12. 12. The apparatus of claim 1, wherein the flavored liquid dispenser is configured to dispense flavored liquid from a flavor capsule received within the flavored liquid dispenser.

13. 13. The device of claim 12, wherein the flavored liquid dispenser mechanism is operable to perform one or more of the following functions: opening a flavor capsule received within the flavored liquid dispenser; and delivering flavored liquid from the opened flavor capsule to the flavored liquid dispenser outlet.

14. 14. The device of claim 13, wherein the flavored liquid dispenser mechanism includes a capsule dispensing mechanism operable to apply a dispensing force to a flavor capsule received within the flavored liquid dispenser.

15. 15. The device of claim 14, wherein the capsule dispensing mechanism is powered by gas pressure of gas stored in the gas reservoir.

16. the apparatus further comprising an electronic controller operable to control operation of the gas supply mechanism; the flavor capsule comprises a machine-readable identifier; 16. Apparatus according to any one of claims 12 to 15, wherein the apparatus is operable to read the machine readable identifier, and the electronic controller is operable to select dispensing parameters based on the machine readable identifier.

17. 12. The apparatus of any one of claims 1 to 11, wherein the flavoring liquid dispenser is configured to dispense flavoring liquid from a bulk container.

18. The apparatus of claim 17 , wherein the flavored liquid dispenser mechanism includes a bulk container dispenser module associated with the bulk container.

19. 20. The apparatus of claim 18, wherein the bulk container distributor module is powered by gas pressure of gas stored in the gas reservoir.

20. 20. The apparatus of claim 18 or 19, wherein the bulk container distributor module is integrated into the bulk container.

21. 21. The apparatus of claim 20, wherein the bulk container dispenser module includes the flavored liquid dispenser outlet.

22. 22. Apparatus according to any one of claims 18 to 21, wherein the bulk container is a fixed volume container.

23. 23. The apparatus of claim 22, wherein the bulk container has an inlet for allowing gas to enter the bulk container as the flavoring liquid is dispensed from the bulk container.

24. 24. The apparatus of claim 23, wherein the apparatus includes a gas collector connectable to the inlet.

25. 25. The apparatus of claim 24, wherein the gas collector is configured to receive gas from the sealed chamber or the gas reservoir of the removable aeration bottle.

26. 25. The apparatus of claim 24, wherein the bulk container dispenser module includes a chamber configured to receive the flavoring liquid from the bulk container.

27. 27. The apparatus of claim 26, wherein the bulk container dispenser module includes a directional valve operable to allow flavored liquid to flow from the bulk container to the chamber, the bulk container dispenser module including a diaphragm movable between a first configuration and a second configuration, and dispensing of the flavored liquid occurs when the diaphragm moves from the first configuration to the second configuration.

28. 28. The device of claim 27, wherein in the first configuration, the chamber is configured to be filled with the flavored liquid from the bulk container, and movement of the diaphragm from the first configuration to the second configuration causes the flavored liquid to be dispensed from the chamber.

29. 30. The apparatus of claim 28, wherein movement from the second configuration to the first configuration allows the chamber to be refilled with the flavored liquid from the bulk container.

30. 30. The apparatus of claim 27, wherein the movement from the first configuration to the second configuration occurs in response to a positive pressure from the gas reservoir, and the movement from the second configuration to the first configuration occurs in response to a negative pressure.

31. 31. The apparatus of claim 30, further comprising a suction device operable to move the diaphragm from the second configuration to the first configuration.

32. 32. The apparatus of claim 31, wherein the suction device includes a venturi nozzle operable to generate a negative pressure in the chamber when the gas collector is filled.

33. 33. The apparatus of any one of claims 27 to 32, wherein the bulk container dispenser module further comprises a dispenser outlet valve for receiving the flavoring liquid from the chamber.

34. 34. The apparatus of claim 33, wherein the bulk container dispenser module further comprises an outlet nozzle for receiving the flavored liquid from the dispenser outlet valve.

35. 35. The apparatus of claim 34, wherein two or more of the diaphragm, the distributor outlet valve and the outlet nozzle are provided as a single component.

36. 36. The apparatus of any one of claims 17 to 35, further comprising an electronic control device operable to control operation of the gas supply mechanism, the bulk container including a machine-readable identifier, the apparatus operable to read the machine-readable identifier, and the electronic control device operable to select distribution parameters based on the machine-readable identifier.

37. 1. A method for preparing an aerated liquid using an aeration device, comprising: filling a removable aeration bottle chamber with liquid; attaching the removable aeration bottle to an aeration bottle interface of the aeration device and sealing the chamber; aerating the liquid in the chamber of the removable aeration bottle by transferring pressurized gas to the chamber during a first aeration step; during or following said first aeration step, transferring pressurized gas from said chamber to a gas reservoir connected to a gas outlet line; Following the preceding step, reducing the gas pressure in the chamber of the removable aeration bottle; thereafter, transferring aeration liquid from the chamber of the removable aeration bottle to a receiver via an aeration liquid distributor outlet connected to the aeration bottle interface by a liquid outlet line, substantially using the reduced gas pressure in the head of the chamber to discharge the aeration liquid from the chamber of the removable aeration bottle; dispensing the flavored liquid from the flavored liquid dispenser into the receptacle by supplying pressurized gas from the gas reservoir to a flavored liquid dispensing mechanism of the flavored liquid dispenser to facilitate dispensing of the flavored liquid. The method includes:

38. 38. The method of claim 37, wherein the initial aeration step comprises increasing the gas pressure in the removable aeration bottle to a first pressure P １ Including raising The step of reducing the gas pressure includes reducing the gas pressure in the removable aeration bottle to a second pressure P ２ including lowering to The step of transferring pressurized gas from the chamber to the gas reservoir includes transferring the pressurized gas to a gas reservoir at substantially a first pressure P １ and transferring the gas to a gas reservoir for storage at.

39. 39. The method of claim 37 or 38, wherein the flavored liquid distributor has a flavored liquid distributor outlet positioned adjacent the aerated liquid distributor outlet.

40. 40. The method of claim 39, further comprising substantially simultaneously dispensing the flavored liquid and the aerated liquid into the receptacle to achieve aerial mixing of the flavored liquid and the aerated liquid.

41. 41. The method of any one of claims 37 to 40, wherein the step of dispensing the flavored liquid from the flavored liquid dispenser includes inserting a flavor capsule into the flavored liquid dispenser, and the pressurized gas supplied to the flavored liquid dispenser drives a capsule opening mechanism to apply a dispensing force to the flavor capsule received in the flavored liquid dispenser.

42. 41. The method of any one of claims 37 to 40, wherein the step of dispensing flavored liquid from the flavored liquid dispenser includes providing a bulk container, and the pressurized gas supplied to the flavored liquid dispenser drives operation of a bulk container dispenser module associated with the bulk container.

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