Handle filter assembly for beverage maker

Abstract

A handle filter for a beverage maker, comprising: a main basket having a cavity; a filter holder at least partially positioned in the main basket; and a lift ring engaged with the filter holder and the main basket. One of the lift ring and the main basket has a first recess defining a first partial helix, the other of the lift rings has a first bump received in the first recess, and one of the lift ring and the filter holder has a second recess defining a second partial helix, and the other of the lift ring and the filter holder has a second bump received in the second recess. The first partial helix and the second partial helix have opposite directions of rotation. Rotation of the cover causes the lift ring and cover to change height relative to the main basket, and further causes the filter holder to change height relative to the main basket.

Description

[0001] Cross-references to related applications

[0002] This application claims priority and benefit to U.S. Patent Application No. 63 / 710,216, filed October 22, 2024, and U.S. Patent Application No. 63 / 743,361, filed January 9, 2025, the entire disclosure of each of which is incorporated herein by reference. Technical Field

[0003] This invention generally relates to small electrical appliances, and more specifically to beverage making machines. Background Technology

[0004] Espresso machines typically brew coffee by forcing pressurized, near-boiling water through a "cup of coffee grounds." The coffee grounds form in a portafilter filled with the grounds, which is then locked into the machine. This process extracts a strong coffee called "espresso." The extraction is also known as brewing. The grouphead is the mechanical receiver on an espresso machine for the removable portafilter. A typical consumer-grade espresso machine has one grouphead. Professional machines (such as those used in commercial coffee shops) usually have two or more groupheads. During the extraction or brewing of a cup of espresso, hot water is forced under high pressure through the grouphead and portafilter.

[0005] A portafilter is attached to the extraction head of an espresso machine and holds a tamped coffee puck in a basket. Portafilters are typically made of brass or stainless steel and have a plastic or wooden handle. The portafilter forms a seal with the extraction head gasket of the espresso machine and directs pressurized hot water through the coffee puck to extract espresso.

[0006] After brewing a cup of espresso, the user must remove the coffee puck from the portafilter's brewing chamber. Some commercial espresso machines use a bash box, which in some cases is a device used to release and store used espresso grounds (or pucks) after brewing a cup of espresso. A bash box is generally a small, open box made of stainless steel. It has a sturdy, rubber-coated bar (also called a bash bar) that "taps" the portafilter to forcefully release the puck. Bash boxes are typically very robust because they are subjected to repeated tapping and pounding after use to remove the espresso puck. Consumer espresso machines usually require the user to manually remove the puck from the portafilter's brewing chamber. Sometimes a visual inspection is also necessary, and the portafilter is additionally wiped with a towel to remove any remaining grounds, as the grounds are compacted into the portafilter and water is forced through them under pressure. Only after proper cleaning can the portafilter be reused to make another cup of espresso.

[0007] Despite the wide variety of espresso machine designs that have been proposed or produced, alternative methods that remove the coffee puck from the portafilter may be necessary. Summary of the Invention

[0008] As a first aspect, embodiments of this disclosure relate to a handle filter for a beverage making machine. The handle filter includes: a main basket having a cavity; a filter holder at least partially positioned within the main basket; and a support lifting ring that engages with the filter holder and the main basket. One of the lifting ring and the main basket has a first recess defining a first partial helix, and the other of the lifting ring has a first protrusion received in the first recess; one of the lifting ring and the filter holder has a second recess defining a second partial helix, and the other of the lifting ring and the filter holder has a second protrusion received in the second recess. The first partial helix and the second partial helix have opposite directions of rotation. Rotation of the cap causes a change in height of the lifting ring and the cap relative to the main basket, and further causes a change in height of the filter holder relative to the main basket.

[0009] As a second aspect, embodiments of this disclosure relate to a handle filter for a beverage making machine, comprising: a main basket having a cavity; a filter holder at least partially positioned within the main basket; a lifting ring engaging with the filter holder and the main basket; and a cap removably attached to the lifting ring. One of the lifting ring and the main basket has a first recess defining a first partial helix, and the other of the lifting ring has a first protrusion received in the first recess; one of the lifting ring and the filter holder has a second recess defining a second partial helix, and the other of the lifting ring and the filter holder has a second protrusion received in the second recess. The first partial helix and the second partial helix have opposite directions of rotation. When viewed from directly above, counterclockwise rotation of the cap causes a change in the height of the lifting ring and the cap relative to the main basket, and further causes a change in the height of the filter holder relative to the main basket.

[0010] As a third aspect, embodiments of this disclosure relate to a handle filter for a beverage making machine. The handle filter includes: a main basket having a cavity; a filter holder at least partially positioned within the main basket; a lifting ring engaging with the filter holder and the main basket; and a cap removably attached to the lifting ring. One of the lifting ring and the main basket has a first recess defining a first partial helix, and the other of the lifting ring has a first protrusion received in the first recess; one of the lifting ring and the filter holder has a second recess defining a second partial helix, and the other of the lifting ring and the filter holder has a second protrusion received in the second recess. The first partial helix and the second partial helix have opposite directions of rotation. Rotation of the cap and the lifting ring causes the lifting ring to rise relative to the main basket, and wherein rotation of the cap and the lifting ring causes the filter holder to rise relative to a lifting member. Attached Figure Description

[0011] Figure 1 This is a front perspective view of a beverage making machine according to an embodiment of the present disclosure.

[0012] Figure 2 yes Figure 1 A side cross-sectional view of the handle filter of a beverage maker, showing it in the lowered position, with abrasive powder cake in the main basket.

[0013] Figure 3 yes Figure 2 Front perspective cross-section of the handle filter.

[0014] Figure 4 yes Figure 2 A perspective view of the lifting ring of the handle filter.

[0015] Figures 5-7 yes Figure 2 Handle filter and Figure 1 A sequential side sectional view of the compaction unit of a beverage making machine, showing how the compaction unit compresses loose abrasive into a cake for brewing.

[0016] Figure 8 This is a front perspective cross-section of the handle filter, which is in a lowered position after brewing, so that the powder compact needs to be ejected.

[0017] Figure 9 It is in the middle position. Figure 8 A quarter-section view of the handle filter.

[0018] Figure 10 yes Figure 8 The front perspective cross-section of the handle filter shows it in a raised position that allows for the removal of the abrasive powder.

[0019] Figure 11 It is in the raised position. Figure 8 A quarter-section perspective view of the handle filter.

[0020] Figure 12A It is compatible with embodiments of this disclosure. Figure 1 Top perspective view of the handle filter used with the beverage making machine.

[0021] Figure 12B yes Figure 12A Bottom perspective view of the handle filter.

[0022] Figure 12C yes Figure 12A Exploded side perspective view of the handle filter.

[0023] Figure 12Dyes Figure 12A A partial bottom perspective view of the handle filter shows the engagement of the main basket, filter support, lifting ring, and resilient cover according to an embodiment of the present disclosure.

[0024] Figure 13A According to embodiments of this disclosure Figure 12A Top perspective view of the main basket of the handle filter.

[0025] Figure 13B yes Figure 13A Bottom perspective view of the main basket.

[0026] Figure 14A According to embodiments of this disclosure Figure 12A Top perspective view of the filter plate of the handle filter.

[0027] Figure 14B yes Figure 14A Side view of the filter plate.

[0028] Figure 15A According to embodiments of this disclosure Figure 12A Top perspective view of the filter holder (and abrasive powder) of the handle filter.

[0029] Figure 15B yes Figure 15A Bottom perspective view of the filter holder.

[0030] Figure 15C yes Figure 15A Another bottom perspective view of the filter holder.

[0031] Figure 16A According to embodiments of this disclosure Figure 12A Top perspective view of the lifting ring of the handle filter.

[0032] Figure 16B yes Figure 16A Bottom perspective view of the lifting ring.

[0033] Figure 16C yes Figure 16A Top view of the lifting ring.

[0034] Figure 17A According to embodiments of this disclosure Figure 12A Top perspective view of the elastic cover of the handle filter.

[0035] Figure 17B yes Figure 17A Bottom perspective view of the elastic cover.

[0036] Figure 18A According to embodiments of this disclosure Figure 12A Top perspective view of the cover of the handle filter.

[0037] Figure 18B yes Figure 18A Bottom perspective view of the cover.

[0038] Figure 19A According to embodiments of this disclosure Figure 12A Top perspective view of the handle filter's turning outlet.

[0039] Figure 19B yes Figure 19A Bottom perspective view of the turnout exit.

[0040] Figure 20 According to embodiments of this disclosure Figure 12A Bottom perspective view of the handle filter's alternative cap and the steering outlet.

[0041] Figure 21 This is a perspective view of a handle filter according to an additional embodiment of the present disclosure.

[0042] Figure 22 yes Figure 21 Front sectional view of the handle filter.

[0043] Figure 23 yes Figure 21 A perspective view of the main basket of the handle filter.

[0044] Figure 24 yes Figure 23 A top view of the main basket.

[0045] Figure 25 yes Figure 21 Top perspective view of the lifting ring of the handle filter.

[0046] Figure 26 yes Figure 21 Top perspective view of the filter holder of the handle filter.

[0047] Figure 27 yes Figure 26 Front perspective sectional view of the filter holder. Detailed Implementation

[0048] Various inventive embodiments of the present disclosure will now be described more fully with reference to the accompanying drawings. However, the present disclosure may include various additional embodiments and should not be construed as limited to the embodiments described herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0049] In the accompanying drawings, certain layers, components, or parts may be exaggerated for clarity, and dashed lines indicate optional features or operations unless otherwise stated. However, the invention can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0050] It should be understood that although the terms first, second, etc., may be used herein to describe various elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms are used only to distinguish one element, component, region, layer, or segment from another region, layer, or segment. Therefore, without departing from the teachings of the invention, the first element, component, region, layer, or segment discussed below may be referred to as a second element, assembly, region, layer, or segment. Unless otherwise expressly stated, the order of operations (or steps) is not limited to the order shown in the claims or drawings.

[0051] Unless otherwise defined, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. It will be further understood that terms defined, for example, in common dictionaries, should be interpreted as having the same meaning as they have in the context of this specification and in the relevant field, and should not be interpreted in an idealized or overly formal sense unless specifically defined herein. For the sake of brevity and / or clarity, well-known functions or structures may not be described in detail.

[0052] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this disclosure. Unless the context clearly requires otherwise, the singular forms “a,” “an,” and “the” are intended to include the plural forms as used herein. It will be further understood that, when used in this specification, the terms “comprising” and / or “including” specify the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof. As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items.

[0053] As used herein, phrases such as “between X and Y” and “between approximately X and Y” should be interpreted as including both X and Y. As used herein, phrases such as “between approximately X and Y” mean “between approximately X and approximately Y”. As used herein, phrases such as “from approximately X to Y” mean “from approximately X to approximately Y”.

[0054] Now for reference Figure 1The diagram illustrates a beverage making machine (e.g., an espresso machine) generally represented by 100. Figure 1 As shown, the espresso machine 100 includes a housing 102 on which a water reservoir 104, a grinding unit 106 for grinding coffee beans, and a stand 108 for receiving one or two cups in which espresso is brewed. A portafilter 110 is mounted on the housing 102 above the stand 108. The water reservoir 104, grinding unit 106, and stand 108 can be of conventional design and require detailed description herein. The portafilter 110 is described in more detail below.

[0055] Now for reference Figure 2 and Figure 3 The handle filter 110 includes a main basket 112 having a cavity 114. A filter holder 116 is positioned within the cavity 114 of the main basket 112. One or more fingers 156 extend outward from a lower lip 158 of the main basket 112. As described in further detail below, according to embodiments of the present disclosure, the filter holder 116 is configured to move vertically relative to the main basket 112, for example, to help remove or eject a "puff" of ground coffee from the main basket 112. A sealing ring 118 surrounds the filter holder 116 and engages with the inner wall of the main basket 112, thereby providing a seal. A porous filter plate 120 is mounted to the upper surface of the filter holder 116. In some embodiments, the filter holder 116 includes an inner ring 122 and an outer ring 124. The inner ring 122 of the filter holder 116 is positioned below the filter plate 120. The outer ring 124 surrounds the inner ring 122. In some embodiments, one or more legs 126 extend outward from the lower end of the outer ring 124 of the filter holder 116.

[0056] Refer again Figure 2 and Figure 3 The handle filter 110 further includes a generally cylindrical resilient sleeve 130 positioned below a filter holder 116. An inner ring 124 of the filter holder 116 is configured to fit within and engage with the inner surface of the sleeve 130 (reinforced by a circumferential ridge 132), while an outer ring 124 is positioned radially outward of the sleeve 130. In some embodiments, one or more lips 134 extend radially outward from the lower end of the sleeve 130.

[0057] Still referencing Figure 2 and Figure 3 as well as Figure 4The handle filter 110 further includes a lifting ring 140. The lifting ring 140 is generally cylindrical and is positioned radially outward of the outer ring 124 of the filter holder 116. In some embodiments, an outer lip 142 extends radially outward from the lower end of the main wall 144 of the lifting ring 140. A magnet 146 may be embedded in the outer lip 142 of the lifting ring 140. The inner surface 148 of the main wall 144 may include two partially helical recesses 150. In some embodiments, a foot 126 of the outer ring 124 of the filter holder 116 is received in a corresponding recess 150 of the lifting ring 140. Furthermore, in some embodiments, the outer surface 152 of the main wall 144 may include two partially helical outer recesses 154. A finger 156 extending from the lower lip 158 of the main basket 112 is received in a corresponding outer recess 154 of the lifting ring 140.

[0058] It is worth noting that the inner recess 150 and the outer recess 154 are rotatably opposite to each other; that is, in some embodiments, the inner recess 150 defines a "left-hand" or "counterclockwise" thread, while the outer recess 154 defines a "right-hand" or "clockwise" thread. In other embodiments, the inner recess 150 may define a "right-hand" or "clockwise" thread, and the outer recess 154 may define a "left-hand" or "counterclockwise" thread.

[0059] Further reference Figure 2 and Figure 3 The handle filter 110 further includes a cap 160. The cap 160 is generally cylindrical and includes a wall 162 and a base plate 164. The wall 162 of the cap 160 is positioned radially outward of the main basket 112, and the base plate 164 of the cap 160 is located below the outer lip 142 of the lifting ring 140. An opening 166 in the base plate 164 leads to a turning outlet 167 fixed to the underside of the base plate 164 of the cap 160. A magnet 168 can be embedded in the base plate 164 at a position aligned with a corresponding magnet 146 of the lifting ring 140, thereby enabling the cap 160 and the lifting ring 140 to rotate and move vertically together. Furthermore, in some embodiments, a circular ridge 170 extends just outward and upward from the opening 166, the opening being configured to engage with the lower end of the cover 130.

[0060] Italian coffee machine 100 ( Figure 1 During operation, the handle filter 110 starts from the lowered position, such as... Figure 2 , Figure 3 and Figure 8As shown. In the lowered position, the fingers 156 of the main basket 112 are positioned at the upper end of the outer recess 154 in the outer surface 152 of the lifting ring 140, and the legs 126 of the filter holder 116 are positioned at the lower end of the inner recess 150 in the inner surface 148 of the lifting ring 140. This position provides sufficient space for the abrasive material within the main basket 112 above the filter plate 120.

[0061] When the portafilter 110 is in the lowered position, the coffee beans are ground in the grinding unit 104 and conveyed (usually by gravity) to the cavity 114 of the main basket 112. The loose grounds are then compacted into a solid "cake" by the compaction unit 180 (usually mounted within the housing 102) for brewing. Figures 5-7 As shown, the compaction unit 180 includes a plunger 182 or similar device for pressing loose abrasive material against the filter plate 120 within the main basket 112. In the illustrated embodiment, the plunger 182 includes a "nozzle" 184 that delivers water from the water reservoir 104 to the powder cake when water remains in the main basket 112. The structure and operation of the compaction unit 180 can be conventional and do not need to be described in detail herein.

[0062] Once the abrasive is compacted into a cake ( Figure 6 If so, you can brew espresso using the traditional method. Figure 2 As indicated by arrow A, water or steam introduced into the main basket 112 through nozzle 184 drips through the ground powder cake to produce a brewed beverage. The brewed liquid descends through filter plate 120 and enters the interior of the inner ring 122 of filter holder 116. The brewed liquid then flows through opening 166 in the base plate 164 of cap 160 into the interior of shroud 130 and into diversion outlet 167, where the flow is split into two streams, which are then distributed to one or both containers (e.g., cups) positioned on stand 108. Figure 1 ).

[0063] After brewing, the nozzle rises to 184 to expose the powder compact. Figure 7 Then, the user needs to remove the powder compact from the cavity 114 of the main basket 112. Instead of having to manually manipulate the powder compact from the cavity 114 (e.g., by scooping it out with fingers, a spoon, or a knife) or “tapping” the handle filter 110 onto the tapping box, the handle filter 110 of the present invention allows the user to remove the powder compact from the main basket 112. The user simply grasps the cap 160 (with the aid of the grasping feature 163—as Figure 9 and Figure 10(As shown) and rotates the cover 160 relative to the main basket 112. (From a view directly above the main basket 112, the user rotates the cover 160 counterclockwise). Because the cover 160 is secured to the lift ring 140 via corresponding magnets 146, 168, the lift ring 140 also rotates counterclockwise. The relative movement of the lift ring 140 and the main basket 112 causes the outer recess 154 to rotate relative to the fingers 156, which in turn causes the lift ring 140 (and the cover 160) to rise (move vertically) relative to the main basket 112 (see...). Figures 8-11 ).

[0064] As the lifting ring 140 rotates and rises, the filter holder 116 also rises (moves vertically) relative to the main basket 112. Furthermore, the rotation of the lifting ring 140 relative to the filter holder 116 causes the legs 126 of the outer ring 124 of the filter holder 120 to rise within the recess 150 in the inner surface 148 of the main wall 144 of the lifting ring 140. As a result, the filter holder 116 rises (moves vertically) relative to the lifting ring 140 (see again). Figures 8-11 ).

[0065] Based on the above discussion, it can be seen that (a) the raising of the cap 160 and the lifting ring 140 relative to the main basket 112 and (b) the raising of the lifting ring 140 relative to the filter holder 116 cause the filter holder 116 to rise significantly (vertically move) relative to the main basket 112. This movement is sufficient to force the compact powder upward and away from the main basket 112, where the compact powder can be retrieved and discarded by the user.

[0066] It is worth noting that using the arrangement described herein reduces the distance / height required to eject the powder compact from the main basket 112. Furthermore, the relatively shallow angle (e.g., 40-70 degrees) defined by the inner recess 150 and outer recess 154 provides a reasonable mechanical advantage to the user when forcing the powder compact out of the main basket 112 (the user must overcome the friction generated between the sealing ring 118 and the inner wall of the main basket 112). Additionally, magnets 146, 168, as a connection technology between the cap 160 and the lifting ring 140, facilitate the separation of these components for cleaning.

[0067] Now for reference Figures 12A-19B The handle filter 110 and its components (as described herein) are shown and described in more detail. Figures 12A-12D Additional views of a handle filter 110 according to an embodiment of this disclosure are provided. As described herein, Figures 12A-12CAs shown, in some embodiments, the handle filter 110 includes a main basket 112 having a cavity 114. In some embodiments, the handle filter 110 of this disclosure may further include a filter plate 120, a filter holder 116, a deflection outlet 167, a lifting ring 140, and a cover 130. Each of these components will be shown and described in more detail below.

[0068] like Figures 12A-12B As shown, the cavity 114 of the main basket 112 is configured to hold a "puff" P of coffee grounds. In some embodiments, the main basket 112 extends from the main slide 111. The main slide 111 is configured to be received by the housing 102 of the beverage maker (i.e., the espresso machine 100) (see...). Figure 1 In some embodiments, the bottom cover 115 may be coupled to or integral with the main slide 111. A handle 113 extends outward from the main slide 111 and provides a position for the user to grip the handle filter 110, for example, when inserting and removing the handle filter 110 from the espresso machine 100. A cover 160 having a wall 162 is positioned radially outward from the main basket 112. A magnet 168 may be embedded in the base plate 164 of the cover 160 and is positioned to align with a corresponding magnet 146 embedded in the outer lip 142 of the lifting ring 140. Magnets 168 and 146 together are configured to retain the cover 160 engaged with the lifting ring 140 and the handle filter 110 (attached to the lifting ring and handle filter) as the cover 160 (and the lifting ring 140) rotates and rises relative to the main basket 112. The diversion outlet 167 is fixed to the underside of the base plate 164 and is configured to help guide the flow of brewed liquid (espresso) into one or two containers (e.g., cups) positioned on the stand 108 of the espresso machine 100 (see example). Figure 1 ).

[0069] Reference Figures 13A-13B The main slide 111 and main basket 112 of the handle filter 110 are shown in more detail. (See example...) Figures 13A-13B As shown, the main basket 112 extends downward from the main slide 111. In some embodiments, the main slide 111 includes an annular lip 114a extending around the upper end (opening) of the cavity 114 of the main basket 112. In some embodiments, when the handle filter 110 is received by the housing 102 of the espresso machine 100 ( Figure 1 The annular lip 114a can help provide a seal with the housing 102 (e.g., when hot water flows into the main basket 112 of the handle filter 110).

[0070] like Figure 13BAs shown, in some embodiments, the lower ends of the cavity 114 of the main basket 112 may include fingers 156. As described herein, each finger 156 is positioned and configured to receive in a corresponding external recess 154 located in the outer surface 152 of the main wall 144 of the lifting ring 140 (see also...). Figures 16A-16C ).like Figure 13B As further shown, in some embodiments, the lower end of the cavity 114 of the main basket 112 may also include two recesses 114r. Each recess 114r is configured to receive a corresponding arm member 127 of the filter holder 116 (e.g., see...). Figure 12D and Figures 15A-15C In some embodiments, the inner surface of the cavity 114 of the main basket 112 may include one or more protrusions 114p. In some embodiments, each protrusion 114p may be configured to slide within a corresponding recess or channel 127r of a corresponding arm member 127 of the filter holder 116 to help guide the filter holder 116 and / or help retain the filter holder 116 coupled to the main basket 112 during vertical movement (e.g., via the lifting ring 140).

[0071] Reference Figures 14A-14B The filter plate 120 of the handle filter 110 is shown in more detail. As described herein, the filter plate 120 is mounted on the upper surface of the filter holder 116 (i.e., between the filter holder 116 and the coffee pouch P), see [reference needed]. Figure 15C The filter plate 120 is porous, having a plurality of holes 121a that allow the brewing liquid to flow down through the filter plate 120. In some embodiments, a tapered section 123 having holes 123a may be located approximately at the center of the filter plate 120. The tapered section 123 and the holes 123a can provide a location for securing the filter plate 120 to the filter holder 116 via fasteners 105 (see, for example...). Figure 3 ).like Figure 14B As shown, in some embodiments, the outer surface 121 of the filter plate 120 may have a raised shape.

[0072] Reference Figures 15A-15C The filter holder 116 of the handle filter 110 is shown in more detail. As described herein, the filter holder 116 is configured to be positioned within the cavity 114 of the main basket 112. Figures 15A-15C As shown, in some embodiments, the filter holder 116 includes an annular recess 118a. The annular recess 118a may be configured to receive at least a portion of a sealing ring 118 that surrounds the filter holder 116 and engages with the inner wall of the main basket 112 (cavity 114) to provide a seal therebetween.

[0073] like Figures 15A-15CAs further shown, the filter holder 116 includes an inner ring 122 positioned below the filter plate 120 and an outer ring 124 surrounding the inner ring 124. A pair of legs 126 extend outwardly from the lower end of the outer ring 124 of the filter holder 116. As described herein, the inner ring 124 of the filter holder 116 is configured to fit within and engage with the inner surface of the resilient sleeve 130, while the outer ring 124 is positioned radially outwardly from the resilient sleeve 130. The engagement between the inner ring 124 of the filter holder 116 and the resilient sleeve 130 may be further reinforced by one or more circumferential ridges 132 on the inner surface of the resilient sleeve 130. Each leg 126 of the outer ring 124 of the filter holder 116 is configured to receive in a corresponding recess 150 in the inner surface 148 of the main wall 144 of the lifting ring 140. Furthermore, as described herein, the filter holder 116 also includes a pair of arm members 127 positioned radially outwardly from the outer ring 124. In some embodiments, each arm member 127 may include a recess or channel 127r configured to receive a corresponding protrusion 114p extending from the inner surface of the cavity 114 of the main basket 112. In some embodiments, the arm members 127 of the filter holder 116 are configured to help guide the filter holder 116 as it moves vertically relative to the main basket 112 and the lifting ring 140.

[0074] Reference Figures 16A-16C The lifting ring 140 of the handle filter 110 is shown in more detail. In some embodiments, the lifting ring 140 is generally cylindrical and positioned radially outside the outer ring 124 of the filter holder 116. In some embodiments, an outer lip 142 extends radially outward from the lower end of the main wall 144 of the lifting ring 140. In some embodiments, the outer lip 142 includes opposing slots 143. Each slot 143 is configured to receive a corresponding arm member 127 of the filter holder 116 (see...). Figure 12D A magnet 146 is embedded in an outer lip 142 (e.g., within a recess 146r of the outer lip 142). A main wall 144 of the lifting ring 140 defines an aperture 141. This aperture 141 is sized and configured to receive an inner ring 124 of a filter holder 116. In some embodiments, the bottom surface of the lifting ring 140 includes an annular recess 145 (e.g., around the lower edge of the opening of the aperture 141). In some embodiments, at least a portion of the resilient sheath 130 may be configured to be received by the annular recess 145, thereby providing a seal.

[0075] like Figures 16A-16CAs further shown, as described herein, the inner surface 148 of the main wall 144 of the lifting ring 140 includes two partially helical recesses 150. The legs 126 of the outer ring 124 of the filter holder 116 are configured to be received in the recesses 150. The outer surface 152 of the main wall 144 includes two partially helical outer recesses 154. The fingers 156 of the main basket 112 extend from the lower lip 158 of the main basket 112 and are received in the outer recesses 154. As described herein, the relative movement of the lifting ring 140 and the main basket 112 causes the outer recesses 154 to rotate relative to the fingers 156, which in turn causes the lifting ring 140 (and the cap 160) to move vertically relative to the main basket 112 (see also). Figures 8-11 ).

[0076] Reference Figures 17A-17B The resilient sheath 130 of the handle filter 110 is shown in more detail. In some embodiments, the resilient sheath 130 has a generally cylindrical main wall 133 defining an orifice 131. The resilient sheath 130 is positioned below and configured to engage with the filter holder 116. For example, as described herein, the inner ring 124 of the filter holder 116 is configured to fit within and engage with the inner surface of the main wall 133 of the sheath 130 (i.e., fit within the orifice 131 of the sheath 130). The engagement between the filter holder 116 and the sheath 130 can be enhanced by a circumferential ridge 132 extending radially inward from the inner surface of the main wall 133 of the sheath 130. The circumferential ridge 132 also helps to provide a tighter seal between the sheath 130 and the filter holder 116. An annular outer lip 134 extends radially outward from the lower end of the main wall 133 of the sheath 130. In some embodiments, at least a portion of the annular outer lip 134 may be configured to be received by an annular recess 145 in the bottom surface of the lifting ring 140, thereby providing a seal therebetween.

[0077] like Figure 17B As shown, in some embodiments, the cover 130 may include an annular inner lip 136 extending outwardly from the bottom surface 135 of the cover 130. The annular inner lip 136 may be configured to be received through an opening 166 in the base plate 164 of the cover 160 to engage with a turning outlet 167. Figure 17B As further shown, in some embodiments, the bottom surface 135 of the cover 130 may further include an annular recess 137 extending circumferentially around the annular lip 136, which helps to further create a seal between the resilient cover 130 and the cap 160.

[0078] Now for reference Figures 18A-18BThe cap 160 of the handle filter 110 is shown in more detail. As described herein, in some embodiments, the cap 160 is generally cylindrical, having a wall 162 and a base plate 164. The wall 162 is positioned radially outward of the main basket 112, and the base plate 164 is located below the outer lip 142 of the lifting ring 140. An opening 166 in the base plate 164 of the cap 160 allows the brewing liquid to flow through the base plate 164 and into a diversion outlet 167 fixed to the underside of the base plate 164. In some embodiments, the underside of the base plate 164 may include a recess 167r that matches the outer contour or shape of the diversion outlet 167. In some embodiments, the cap 160 also includes opposing slots 165 in the base plate 164. In some embodiments, the slots 165 may have an arcuate shape. In some embodiments, each slot 165 in the base plate 164 may be configured to receive at least a portion of a corresponding arm member 127 of the filter holder 116 (e.g., see...). Figure 12B This allows the cap 160 to move (e.g., rotate) relative to the filter holder 116.

[0079] Magnet 168 is embedded in base plate 164 (e.g., within recess 168r) in a position that allows magnet 168 to align with a corresponding magnet 146 of lifting ring 140, thereby enabling cap 160 and lifting ring 140 to rotate and lift together. One or more gripping features 163 may extend outward from wall 162 of cap 160. Gripping features 163 may be wings or similar protrusions that provide a position for the user to grip cap 160 (e.g., when cap 160 rotates relative to main basket 112) (see also). Figure 20 In some embodiments, the inner surface of the cover 160 may include one or more protrusions or ribs 162p.

[0080] Reference Figures 19A-19B The diversion outlet 167 of the handle filter 110 is shown in more detail. As described herein, the diversion outlet 167 is attached to the underside of the base plate 164 of the cap 160. The diversion outlet 167 is configured to direct the flow of brewed liquid into two streams, which are distributed through two openings 167a to one or both containers positioned on the stand 108 (see [reference]). Figure 1 For example, such as Figures 19A-19B As shown, in some embodiments, the diversion outlet 167 may have a sloped or tapered base 167b, which helps to direct the flow of brewing liquid toward the opening 167a. In some embodiments, an outer wall 169 extends upward from the base 167b. The outer wall 169 is configured to engage with the underside of the cap 160 (e.g., a recess 167r) to form a seal between the diversion outlet 167 and the cap 160.

[0081] Reference Figure 20An alternative cap 160' and steering outlet 167' for use with the handle filter 110 are shown. The cap 160' and steering outlet 167' are similar to the cap 160 and steering outlet 167 described herein, for the purpose of discussion. Figure 20 Therefore, this article can omit the repeated discussion of it. For example... Figure 20 As shown, the cap 160' is generally cylindrical, having a wall 162' and a base plate 164'. In some embodiments, the cap 160' includes opposing slots 165' in the base plate 164', configured to receive at least a portion of a corresponding arm member 127 of the filter holder 116, thereby allowing the cap 160' to move (e.g., rotate) relative to the filter holder 116. A magnet 168 is embedded in the base plate 164' (e.g., within a recess 168r'), located where the magnet 168 can align with a corresponding magnet 146 of the lifting ring 140, thereby enabling the cap 160' and the lifting ring 140 to rotate and lift together. One or more gripping features 163 may extend outward from the wall 162' of the cap 160'. Figure 20 As shown, the gripping feature 163 may be a protrusion that provides position for the user to grip the cap 160' (e.g., when the cap 160' is rotated relative to the main basket 112). Figure 20 As further shown, the diversion outlet 167' is fixed to the underside of the base plate 164' of the cap 160'. The diversion outlet 167' is configured to direct the brewing liquid flow into two streams, which are distributed through two openings 167a' to one or both containers positioned on the stand 108 (see...). Figure 1 In some embodiments, the configuration of the cap 160' allows the opening 167a' in the diversion outlet 167' to be positioned closer to one or both containers.

[0082] Now for reference Figures 21-27 The image shows another portafilter, generally designated 210. Portafilter 210 is similar to portafilter 110 because it relies on two helices rotating in opposite directions to provide a lifting motion to the coffee grounds puck, aiding in removal of the puck from the portafilter 210; however, the features providing the helical interaction are repositioned on the component. Portafilter 210 is described in more detail below.

[0083] Reference Figures 21-27 The handle filter 210 includes a main basket 212, a filter holder 216, and a lifting ring 240. Furthermore, the handle filter 210 includes a basket support 217 on which the main basket 212 is mounted. The basket support 217 has a column 219 surrounding a cavity 214 of the main basket 212 and also includes an extension 221 mounted to a handle of the handle filter 210.

[0084] like Figure 22As shown, the sidewall 223 of the main basket 212 extends below the lower edge of the column 219 of the basket support 217. The sidewall 223 has three partially helical recesses 224 (see also...). Figure 23 Each recess is positioned below the column 219.

[0085] Now for reference Figure 26 and Figure 27 The filter holder 216 has an generally cylindrical outer ring 226, an inner ring 227, and an upper plate 228 that supports the perforated filter 220. Figure 22 Two finger-like members 232 extend downward from the lower end of the outer ring 226. Two partially spiral recesses 234 ( Figure 27 The outer ring 226 is located on the inner surface of the outer ring 226. Four through holes 235 exist in the upper plate 228 adjacent to the inner ring 227; these through holes 235 provide passage for liquid through the upper plate 228.

[0086] Now for reference Figure 25 The lifting ring 240 includes an outer ring 242, a base plate 244, and an inner tower 246. Two arc-shaped through holes 238 exist in the base plate 244, adjacent to the tower 246 and on opposite sides of the tower. Above the through holes 238, two angled protrusions 248 extend radially outward from the upper end of the tower 246. Furthermore, three protrusions 250 extend radially inward from the upper edge of the inner surface of the outer ring 246. A hole 252 extends through the tower 246.

[0087] like Figure 22 As shown, when assembling the handle filter 210, the outer ring 242 of the lifting ring 240 is positioned radially outward of the side wall 223 of the main basket 212. Each protrusion 250 on the outer ring 242 ( Figure 22 (Not visible in the middle) is received in a corresponding recess 224 in the side wall 223 of the main basket 212. The filter holder 216 is positioned such that the inner ring 227 is located within the aperture 252 of the tower 246, and the outer ring 226 is positioned radially outward of the tower 246. Finger 252 ( Figure 22 (Not visible in the middle) extends through the through-hole 238 in the base plate 244 of the lifting ring 240. Each protrusion 248 ( Figure 22 (Not visible in the middle) is received in a corresponding recess 234 in the outer ring 226. It is noteworthy that each recess 224 in the sidewall 223 of the main basket 212 defines a partial helix whose rotational direction is opposite to the helix defined by the recess 224 in the outer ring 226 of the filter holder 216 (e.g., recess 234 may define a clockwise partial helix, while recess 234 may define a counterclockwise partial helix). Cap 260 ( Figure 21 It is installed on the lifting ring 240 in a manner very similar to that of the cap 160' described above.

[0088] The operation of handle filter 210 is similar to that of handle filter 110. Handle filter 210 is in the lowered position (e.g., Figure 21 and Figure 22 As shown), at this position, coffee grounds are added to the space defined by the side wall 223 of the main basket 212 and the filter 220, and compacted in place as described above. To brew espresso, the liquid flows from the brewing space through the through-hole 235 around the inner ring 227 of the filter holder 216, and through the diversion outlet 262 in the cap 260. When brewing is complete, the user grasps the cap 260 and rotates it (from...). Figure 24 (The advantageous point is to rotate counterclockwise). The rotation of the cover 260 also causes the lifting ring 240 to rotate counterclockwise. As the lifting ring 240 rotates, the interaction between the recess 226 and the protrusion 250 in the side wall 223 of the main basket 212 causes the lifting ring 240 to rise relative to the main basket 212.

[0089] Furthermore, as the lifting ring 240 rotates, the interaction between the protrusion 248 of the lifting ring 240 and the recess 234 in the filter holder 216 causes the filter holder 216 to rise relative to the lifting ring 240. Rotation of the filter holder 216 is prevented by a finger 232 extending through a through-hole 238 in the base plate of the lifting ring 240. Therefore, the filter holder 216 rises sufficiently to discharge the coffee grounds cake from the main basket 212.

[0090] The foregoing is illustrative of the invention and should not be construed as limiting it. Although exemplary embodiments of the invention have been described, those skilled in the art will readily understand that many modifications may be made to the exemplary embodiments without substantially departing from the novel teachings and advantages of the invention. Therefore, all such modifications are intended to be included within the scope of this disclosure.

Claims

1. A handle filter for a beverage making machine, comprising: The main basket has a cavity; A filter holder, which is at least partially positioned in the main basket; The lifting ring engages with the filter bracket and the main basket; Wherein, one of the lifting ring and the main basket has a first recess defining a first partial spiral, and the other of the lifting rings has a first protrusion received in the first recess; and One of the lifting ring and the filter holder has a second recess defining a second portion of the spiral, and the other of the lifting ring and the filter holder has a second protrusion received in the second recess; Wherein, the first part of the spiral and the second part of the spiral have opposite directions of rotation; and The rotation of the lifting ring causes the lifting ring to change its height relative to the main basket, and further causes the filter bracket to change its height relative to the main basket.

2. The handle filter of claim 1, further comprising a cap detachably secured to the lifting ring.

3. The handle filter according to claim 2, wherein, The lifting ring includes an outer lip extending radially outward from the lower end of the main wall, the outer lip having at least one magnet embedded therein, wherein the at least one magnet is embedded in the bottom plate of the cover and positioned to align with at least one magnet of the lifting ring.

4. The handle filter according to claim 1, wherein, The filter support includes an inner tower and an outer ring surrounding the inner tower.

5. The handle filter according to claim 4, wherein, The lifting ring includes a main wall defining an aperture that is sized and configured to receive the inner tower of the filter holder.

6. The handle filter of claim 2, further comprising a turning outlet fixed to the lower side of the cover, wherein, The cap includes an opening in the base plate that allows the brewing liquid to flow through the base plate and into the diversion outlet, which is configured to direct the flow of the brewing liquid into one or both containers.

7. The handle filter according to claim 1, wherein, The filter support includes opposing support members.

8. The handle filter of claim 1, further comprising a filter plate mounted to the upper surface of the filter holder.

9. The handle filter according to claim 1, wherein, The first recess and the second recess are located on the lifting ring.

10. A handle filter for a beverage making machine, comprising: The main basket has a cavity; A filter holder, which is at least partially positioned in the main basket; The lifting ring engages with the filter bracket and the main basket; Wherein, one of the lifting ring and the main basket has a first recess defining a first partial spiral, and the other of the lifting rings has a first protrusion received in the first recess; and One of the lifting ring and the filter holder has a second recess defining a second portion of the spiral, and the other of the lifting ring and the filter holder has a second protrusion received in the second recess; Wherein, the first part of the spiral and the second part of the spiral have opposite directions of rotation; and A cover that can be detachably fixed to the lifting ring; When viewed from directly above, the counterclockwise rotation of the cap causes the lifting ring and the cap to change height relative to the main basket, and further causes the filter bracket to change height relative to the main basket.

11. The handle filter according to claim 10, wherein, The cap is detachably secured to the lifting ring via a magnet.

12. The handle filter according to claim 11, wherein, The lifting ring includes an outer lip extending radially outward from the lower end of the main wall, the outer lip having at least one magnet embedded therein, wherein the at least one magnet is embedded in the bottom plate of the cover and positioned to align with at least one magnet of the lifting ring.

13. The handle filter according to claim 10, wherein, The filter support includes an inner tower and an outer ring surrounding the inner tower.

14. The handle filter according to claim 13, wherein, The lifting ring includes a main wall defining an aperture that is sized and configured to receive the inner tower of the filter holder.

15. The handle filter of claim 10, further comprising a turning outlet fixed to the lower side of the cap, wherein, The cap includes an opening in the base plate that allows the brewing liquid to flow through the base plate and into the diversion outlet, which is configured to direct the flow of the brewing liquid into one or both containers.

16. The handle filter according to claim 10, wherein, The filter support includes opposing support members.

17. The handle filter of claim 10, further comprising a filter plate mounted to the upper surface of the filter holder.

18. The handle filter according to claim 10, wherein, The first recess and the second recess are located on the lifting ring.

19. A handle filter for a beverage making machine, comprising: The main basket has a cavity; A filter holder, which is at least partially positioned in the main basket; The lifting ring engages with the filter bracket and the main basket; Wherein, one of the lifting ring and the main basket has a first recess defining a first partial spiral, and the other of the lifting rings has a first protrusion received in the first recess; and One of the lifting ring and the filter holder has a second recess defining a second portion of the spiral, and the other of the lifting ring and the filter holder has a second protrusion received in the second recess; Wherein, the first part of the spiral and the second part of the spiral have opposite directions of rotation; and A cover that can be detachably fixed to the lifting ring; The rotation of the cap and the lifting ring causes the lifting ring to rise relative to the main basket, and the rotation of the cap and the lifting ring causes the filter bracket to rise relative to the lifting member.

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