Flow control filter cover and method of use

Abstract

A beverage cap with a pressure activated valve for use with a press filter having a hollow cylinder and a removable piston, liquid being forced through the cylinder and beverage cap into an open container when the piston is pressed. Such a press filter is particularly suitable for coffee beverages, in particular espresso coffee. The beverage cap includes a plurality of protrusions distributed discontinuously to improve filter support and more uniformly distribute pressure throughout the cavity and along the filter, allowing thin paper filters to be used and avoiding tear or rupture. The beverage cap may include a removable valve insert that includes a valve body that supports the movable valve and a support member that supports the filter in a central valve region that further reinforces the filter to avoid breakage of the paper filter. The beverage cap may include a gasket to enhance a hermetic seal with the cylinder, and may include a plurality of valves for use with an oversized press filter.

Description

Background Art

[0001] This application claims the benefit of priority to U.S. Non-Provisional Patent Application No. 18 / 099,790, filed January 20, 2023, and U.S. Provisional Patent Application No. 63 / 599,977, filed November 16, 2023; the entire contents of which are incorporated herein by reference for all purposes.

[0002] The present invention relates generally to beverage making machines and, more particularly, to a pressure activated beverage lid for use with a beverage press to make beverages such as coffee, tea, or espresso.

[0003] Currently, commercially available products include beverage presses that include a lid with a pressure-activated valve to facilitate the production of beverages under increased pressure, which is suitable for certain types of beverages, such as espresso. Conventional lids typically include a standoff ridge inside the lid that extends radially from the periphery to the pressure-activated valve at the center to support a metal filter and define a radial flow path that directly or indirectly guides the pressurized flow to the center valve. Such lids typically use a perforated metal filter located on top of the radial ridges of the lid and are generally not suitable for use with paper filters because the paper filter can tear and break when subjected to high pressure. In addition, high pressure can cause leakage during beverage pressing and cause the beverage lid and valve to wear over time. Since paper filters have many advantages over metal filters, there is an urgent need for an improved pressure-activated beverage lid for beverage presses that allows the use of paper filters. In addition, there is a need for a pressure-activated beverage lid that improves the usability and service life of the beverage lid and components and improves the production of beverages. Summary of the Invention

[0004] In one aspect, the present invention relates to a beverage cap for a beverage press filter. The beverage cap may include a body having an upper side and a lower side, the upper side having an open cavity for receiving a filter therein, wherein the body is configured to releasably couple to a cylinder of the beverage press filter and, when coupled thereto, close a bottom opening of the cylinder, the cavity having a bottom surface and a central aperture with a pressure-activated valve to facilitate fluid flow during filtration with the press filter. The pressure-activated valve is disposed within the body and is configured to be in a closed configuration when pressure within the cavity is less than a minimum pressure during filtration with the press filter, and to be activated in an open configuration to facilitate fluid flow when pressure within the cavity is greater than the minimum pressure during filtration with the press filter. In some embodiments, the pressure-activated valve is removably coupled to the body by a tab configured to couple via a snap fit. The body includes a plurality of protrusions or projections extending upward from the bottom surface of the open cavity to support the filter. In some embodiments, the plurality of protrusions are discontinuous and distributed across the entire interior surface to distribute pressurized fluid flow within the cap and to inhibit rupture when used with a paper filter. In some embodiments, the drink cap includes an annular groove for a gasket along the periphery of the open cavity to enhance the seal between the hollow cylinder and the filter when attached to the drink cap. The gasket can be an annular ring made of an elastomer such as silicone or any other suitable material. In some embodiments, the bottom side of the drink cap includes a lower bottom surface defining an annular groove and a raised inner region along the bottom side having a plurality of grooves distributed in a curved or wavy pattern.

[0005] In some embodiments, the plurality of protrusions are disposed on between 40% and 60% of the bottom surface of the open cavity. In some embodiments, the plurality of protrusions are discontinuous and distributed on the interior surface in a substantially regular pattern. In some embodiments, the maximum lateral dimension of each of the plurality of protrusions is about 0.5 inches or less, about 20 millimeters or less, about 10 millimeters or less, or about 6 millimeters or less. In some embodiments, the top surface area of ​​each of the plurality of protrusions is about 0.25 square inches or less, about 0.1 square inches or less, about 0.05 square inches or less, or 0.02 inches or less. In some embodiments, the protrusions extend upward by 0.2 inches to 0.7 inches, 0.3 inches to 0.5 inches, 1 to 10 millimeters, 1 to 5 millimeters, or 1 to 3 millimeters. In some embodiments, the bottom surface is inclined toward the opening(s) so that the protrusions extend upward by different distances. It will be understood that the above dimensions may apply to any of the embodiments described herein. In some embodiments, each of the plurality of protrusions comprises a plurality of elongated shapes that alternate between different orientations. In some embodiments, the plurality of protrusions are arranged to avoid any designated flow path from the periphery of the open cavity to the central opening, thereby distributing pressure within the cavity and along the filter. Many conventional drink cap designs include ridges or preferential channels that form designated flow paths, with preferential channels defined as enlarged spaces along a path that directs fluid between the periphery and the center, either directly or indirectly along a curved or angled path. In the embodiments described herein, the protrusions are distributed and arranged in a pattern that avoids any such designated flow paths to promote a more even distribution of pressure within the drink cap and force along the filter. As described in the art, designated flow paths or channels are areas within the cover that are open or spaced wider between ridges or protrusions to direct fluid along these flow paths or channels to the openings (e.g., see the designated flow paths and channels detailed in U.S. Patent Publication No. 2019 / 0021541, U.S. Patent Publication No. 2020 / 0405089, and U.S. Patent No. 5,913,962, each of which highlights differences in the prior art that lead to the filter rupture problem that the present invention seeks to solve. It will be understood that whether the flow paths or flow paths are straight, curved, or angled, such flow paths and channels are Any flow path directs the fluid to flow toward an opening or outlet. In sharp contrast, in various embodiments described herein, the protrusions are arranged in a regular pattern that avoids designing flow paths or channels that direct the fluid to flow to an opening, because these designated flow paths or channels can cause the paper filter element to break when used in a beverage filter press. In some embodiments, each of the multiple protrusions is spaced at regular intervals throughout the cavity in a staggered pattern. In some embodiments, the staggered pattern or seemingly random arrangement of the protrusions in the beverage cover increases pressure and turbulence in the inner cavity of the beverage cover during filter pressing.In some embodiments, this configuration can produce a better, higher quality fat layer compared to conventional beverage lids with linear flow channels.

[0006] In some embodiments, a beverage cap includes a removable valve insert including a pressure-activated valve. The removable valve insert may include: a valve body; a movable valve member attached to and supported by the valve body, wherein the movable valve member is movable between an open configuration and a closed configuration to facilitate fluid passage; and one or more support members extending upwardly to support a filter above and / or adjacent to the movable membrane. In some embodiments, the valve insert includes three or more support members (e.g., four support members, five support members, six support members, etc.) distributed around the movable valve member.

[0007] On the other hand, the present invention relates to a beverage filter press assembly, comprising: a hollow cylinder having a top opening and a bottom opening; a removable piston that is inserted into the top opening and pressed downward to force the liquid in the cylinder; and a beverage cover that is removably connected to the bottom opening of the hollow cylinder and closes the bottom opening of the hollow cylinder. The beverage cover includes a plurality of protrusions that are distributed throughout the cavity to support the filter and are arranged to provide a more uniform pressure flow throughout the cavity. In some embodiments, the protrusions are discontinuous and are arranged to substantially avoid any direct flow path or relatively large open gap within the cavity to prevent rupture. In some embodiments, the beverage cover includes a plurality of convex tabs along the periphery that are received in corresponding grooves of a support member extending laterally from the hollow cylinder near the bottom opening.

[0008] In yet another aspect, the present invention relates to a removable valve insert for a beverage cup. The valve insert may include: a valve body; a movable valve member attached to and supported by the valve body, wherein the valve member is configured to be in a closed configuration when upstream pressure is less than a minimum pressure and to be activated to be in an open configuration to facilitate fluid flow when upstream pressure is greater than the minimum pressure; and one or more support members extending upward from the valve body to support a filter above and / or adjacent to a movable membrane when the valve insert is attached to a beverage cap sealingly coupled to the beverage filter during beverage filtration. In some embodiments, the valve insert may include three or more support members (e.g., four support members, five support members, six support members, etc.) distributed around a movable valve member disposed at the center of the valve body. In some embodiments, the valve body and the one or more support members are integrally formed, for example, by injection molding. In some embodiments, the valve body and the one or more support members are made of a rigid or semi-rigid plastic or elastomer. The movable valve member may be defined by a flexible membrane having one or more slits defined therein.

[0009] In yet another aspect, the present invention relates to a method for filtering a beverage using a beverage filter press with a beverage cover as described herein to better support the filter, particularly a paper filter, and provide a more even pressure distribution to avoid rupture of the paper filter.

[0010] A further understanding of the nature and advantages of the present invention may be realized by reference to the remaining portions of the specification and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1A-1B An improved beverage lid with a pressure-activated valve is shown according to some embodiments.

[0012] Figure 2 A beverage press with a pressure-activated beverage lid is shown, wherein the press rests on a cup during an initial mixing stage with a mixing paddle deployed in the press, according to some embodiments.

[0013] Figure 3 Shown Figure 2 A beverage filter press in which a piston is pressed down into a cylinder during the pressing phase.

[0014] Figure 4 An alternative version of a beverage press according to some embodiments is shown in which the beverage cap has radially outwardly extending supports.

[0015] Figure 5 According to some embodiments Figure 1A-1B A beverage cap in which a paper filter is placed in the open cavity prior to assembly with the beverage filter press.

[0016] Figure 6 According to some embodiments Figure 1A-1B A cross-sectional view of a beverage cover in which a protrusion of the beverage cover supports a paper filter before the beverage is assembled with the beverage filter press.

[0017] Figure 7 According to some embodiments Figure 1A-1B Elevated side view of a beverage cap having a rotational locking tab and gripping features along an outer surface.

[0018] Figure 8 1A- according to some embodiments Figure 1B A top view of a beverage cover showing that the protrusions of the beverage cover are arranged in a regular pattern within the cavity for improved support of the filter and more uniform pressurization.

[0019] Figure 9 1A- according to some embodiments Figure 1B1. An underside view of a beverage press shown in FIG. 1, showing the underside surface and center protrusion that accommodates the valve insert.

[0020] Figures 10A-10B According to some embodiments Figure 1A-1B Removable pressure activated valve insert for use in beverage lids.

[0021] Figure 11A 、 Figure 11B and Figure 11C According to some embodiments Figures 10A-10B Side, top, and underside views of the pressure activated valve insert in FIG.

[0022] Figures 12A-12B A beverage lid having an alternative design of a removable pressure-activated valve is presented according to some embodiments.

[0023] Figure 13 An alternative design of a beverage cap according to some embodiments is shown (valve insert not shown).

[0024] Figure 14 An alternative design of a beverage cap according to some embodiments is shown (valve insert not shown).

[0025] Figure 15 An alternative design of a beverage cap according to some embodiments is shown (valve insert not shown).

[0026] Figure 16 An alternative design of a beverage cap according to some embodiments is shown (valve insert not shown).

[0027] Figure 17 Shown is an assembly of a replacement beverage lid (valve insert not shown) using a gasket and filter (paper or metal) according to some embodiments.

[0028] Figures 18A-18E Various views are shown of an alternative beverage cap (valve insert not shown) using a gasket according to some embodiments.

[0029] Figures 19A-19E Various views of an alternative beverage lid (valve insert not shown) are shown according to some embodiments.

[0030] Figures 20A-20E Various views of an alternative beverage lid (valve insert not shown) are shown according to some embodiments. DETAILED DESCRIPTION

[0031] The present invention relates generally to beverage making machines and, more particularly, to a pressure activated beverage cap for a beverage press for making beverages such as tea and coffee beverages, such as espresso.

[0032] In one aspect, a beverage cap includes an open cavity with a pressure-activated valve and a plurality of protrusions extending upward from a bottom surface of the cavity, wherein the protrusions are arranged and sized to provide improved support for the filter and more uniform pressure distribution throughout the cavity during filtration of the beverage by a beverage press. In some embodiments, the improved support and uniform pressure distribution provided by the arrangement and design of the protrusions allows for the use of paper filters.

[0033] On the other hand, the beverage cap includes a pressure-activated valve as a removable valve insert. In some embodiments, the end user can remove and replace the valve insert as needed. The valve insert may include a coupling feature to removably secure the valve to the beverage cup. The valve insert may include a valve body that supports a movable valve and has a support member extending upward from the valve body to provide additional support for a filter located above and / or directly adjacent to the movable valve. In some embodiments, the support member provides additional support within the valve area to allow the filter to withstand increased forces in the valve area, thereby allowing the use of paper filters. In some embodiments, the valve insert includes a valve body with a movable valve membrane that is directly inserted into the beverage cap without any intermediate components. In some embodiments, the valve insert includes a valve body with a movable valve membrane and a gasket disposed around the valve body.

[0034] Currently, beverage presses on the market may include lids with pressure-activated valves to facilitate the production of beverages under increased pressure, which is particularly useful for certain types of beverages, such as espresso. Conventional lids typically include an insulating ridge located inside the lid, extending radially between the peripheral and central pressure-activated valves to support the filter and define a radial flow path that directs the pressurized fluid to the central valve. Such lids typically use a perforated metal filter located atop the radial ridges of the lid and are generally unsuitable for use with paper filters due to the risk of perforation and rupture of the filter caused by increased pressure. Paper filters offer many advantages over metal filters, such as their ability to absorb fine particles and compounds that cause bitterness, lower cost, and ease of cleaning due to their disposable nature. However, paper filters present some challenges, as they are much thinner and less robust than metal filters. Typically, paper filters are approximately 100 to 250 microns thick. The paper, fabric, or cloth filter material is typically made of fibers, which can be woven or non-woven, with pores between the fibers to filter the fluid passing through. The pore size of paper filters is typically between 10 and 150 microns, with most pores being around 50 microns. The total pore area is typically between 0.25% and 0.45%, and often between 0.25% and 0.4%. For additional details on filters made of paper, fabric, or cloth, see "An In-Depth Analysis of Coffee Filters" (available online at: https: / / coffeeadastra.com / 2019 / 08 / 04 / an-in-depth-analysis-of-coffee-filters-2 / ), which is incorporated herein by reference for all purposes. Any of paper, fabric, or cloth filters can be used with the improved beverage lid described herein.

[0035] These paper filters are well-suited for making regular coffee or tea in a standard filter press with a standard perforated beverage cap (without any pressure-activated valve), generating a pressure of 0.25 to 0.5 bar. However, when using a beverage cap with a pressure-activated valve to make more concentrated beverages such as espresso, which increases the pressure within the chamber by 5-30%, the paper filter often "bursts." That is, the fibers defining the pores separate or tear, causing one or more pores to expand significantly, allowing any filtered fines and compounds to pass through the valve and into the coffee, rendering the filter ineffective. This is a recurring problem when attempting to use standard paper filters with conventional beverage caps with pressure-activated valves. Conventional beverage caps typically include ridges that define a flow path to direct the fluid to the valve. Extensive testing has shown that the tearing or enlargement of pores associated with rupture tends to occur in areas of the filter subject to elevated pressure, typically above the valve and along the flow path. Due to this recurring problem, conventional beverage caps are equipped with standard metal filters that can withstand the elevated and variable pressures associated with this method. However, even with a metal filter, these pressure variations still exist, which can result in uneven flow of the pressurized fluid through the coffee grounds cake, adversely affecting the final coffee product.

[0036] Advantageously, the beverage cap provided herein overcomes the above challenges by incorporating a plurality of relatively small protrusions in the internal cavity that support the filter and improve the pressure distribution throughout the internal cavity during the filter pressing period. In some embodiments, the protrusions are arranged to avoid a flow path that directly reaches the center valve, thereby improving pressure distribution, increasing uniformity, and avoiding areas of uneven pressure that cause the paper filter to "break." On the other hand, the beverage cap further suppresses breakage above the valve area by employing a valve insert having additional support members that support the filter in an area above or directly adjacent to the pressure-activated valve, thereby providing further reinforcement in this area to avoid breakage. In some embodiments, the support members of the valve insert are spaced closer than the protrusions of the beverage cap body. As described above, filter breakage in conventional beverage cap designs typically occurs in areas where there are large gaps between the supports, particularly above the valve, such that the current beverage cap design described herein reduces these gaps and avoids filter breakage in the paper filter through an innovative valve insert design and protrusion arrangement.

[0037] On the other hand, the arrangement of the protrusions provides for more uniform application of pressure, thereby promoting a more uniform flow of pressurized fluid throughout the entire tea cake or coffee cake in the internal cavity, rather than directing the flow primarily to a specific area in the center along a designated flow path. As a result, the beverage cap can provide improved filtration and enhanced flavor compared to beverage caps designed with open voids in the center and along the designated flow path.

[0038] Figure 1A-1B An improved beverage cap 30 with a pressure activated valve according to some embodiments is shown. The beverage cap 30 is designed to be releasably coupled to the cylinder of a beverage press, such as Figure 2-Figure 4 As shown, the beverage cover closes the distal end opening of the filter cylinder during the filtration of the beverage filter and filters the beverage through the filter supported in the cover. The beverage cover 30 is designed to be coupled to the beverage filter press via a male tab 32, which engages with a corresponding female recess in the filter press and is fixed to the filter press by rotating and tightening.

[0039] like Figure 1AAs shown, the beverage cap 30 includes a container or body 35 defining an upwardly opening internal cavity 31, the shape and size of which are designed to hold the filter and the compressed coffee or tea cake formed during the filtration of the beverage. At the center is a pressure-activated valve 40, which is configured to close when the upstream pressure is below a minimum pressure and to open to allow fluid to flow when the upstream pressure within the filter press is greater than the minimum pressure. In a typical beverage filter press, the opening pressure is 20 inches of water column (±3 inches), the closing pressure is 10 inches of water column (±3 inches), and the flow rate at 37 inches of water column is 1,250 ml / min (±250). While these parameters are typical, it will be understood that beverage filter press designs may vary and these values ​​may also be different, so the beverage cap design can be modified to accommodate any changes in beverage filter press design. The internal cavity has a bottom surface 33 that is slightly inclined downward toward the central valve opening to facilitate the flow of beverage through the valve during filtration. A plurality of protrusions 34 extend upward from the bottom surface 33 of the internal cavity and serve as supports for the filter and baffles to limit or regulate pressure within and along the filter. In this embodiment, the protrusions 34 occupy approximately 40-60% of the bottom surface, typically approximately 50%, to improve pressure distribution and support along the entire filter. Preferably, the protrusions are discontinuous, with multiple spaces between them in each direction, thereby allowing for pressure distribution during beverage pressing. In this embodiment, the protrusions have a diamond shape with a flat top surface that engages and supports the filter. In this embodiment, the diamond-shaped protrusions are arranged in a regular pattern, with no direct flow path from the periphery to the central valve opening. This improves flow and pressure distribution within the internal cavity, preventing uneven forces on the paper filter that could cause rupture. In this embodiment, each diamond-shaped protrusion is approximately 0.2 inches long and 0.1 inches wide, and is arranged to extend in different directions or orientations. In this embodiment, each of the four supports on the valve insert is approximately 0.1 inches long and 0.1 inches wide.

[0040] like Figure 1B As shown, the beverage cover includes a lower recessed portion having a bottom facing surface 37 that engages the top surface of the cup (e.g., Figure 2-Figure 339 to facilitate flow of beverage therethrough during filtration. In this embodiment, the body 35 also includes a serpentine flange 36 that serves as a gripping feature. The bottom-facing surface 37 can be flat or slightly sloped toward the central raised area 38. The bottom-facing surface 37 can abut the top of a container (i.e., a cup or mug), however, in most uses, the lateral support of the filter press abuts the top of the container and receives the bottom portion of the beverage cover within the open mouth of the container, which holds the assembly on top of the container. It will be appreciated that while a particular design is shown here, the body can be configured according to a variety of other shapes and designs, with or without gripping features.

[0041] Figure 2 and Figure 3 A beverage filter press assembly 100 according to a specific embodiment of the present invention is shown. The beverage filter press 1 includes a hollow cylinder 2 having a top opening and a bottom opening. A removable beverage cap 30 is releasably coupled to the bottom of the cylinder and seals the bottom opening. After tea or coffee powder and hot water are placed in the outer cylinder and stirred, a removable piston 4 is inserted into the top opening and pressed downward, forcing the liquid 5 in the cylinder through the cap. The filter press has a transverse support 6 to support the filter press assembly on the mouth of an open container 7. A filter 8 is captured between the beverage cap 30 and the cylinder 2 to filter particles from the liquid during filtration. Alternatively, the filter can be integrated into the cap structure. Typically, the filter is a removable filter that is placed in the beverage cap before assembly with the filter press and removed after the beverage is filtered for cleaning or disposal. Advantageously, the beverage cap design herein allows the use of a paper filter. It will be understood that the removable filter can be a disposable filter made of paper, cloth, fabric, or any fiber-based material, woven or non-woven. The drink lid is also compatible with reusable filters, which may be made of metal, such as perforated metal sheet or metal mesh.

[0042] Figure 2Also shown is a stirring paddle 9, which has an upper stop 10 and has a length, measured from its lower end 11 to the stop 10, slightly less than the length of the cylinder 2. The stop prevents the paddle's end 11 from contacting the beverage lid 3 or filter 8 during stirring. In operation, the filter press 1 is assembled as shown and placed atop an open container 7. Ground coffee or tea is placed in the cylinder 2. Hot water is added and the mixture is stirred with the paddle 9. The paddle is then removed, and the piston 4 is inserted into the top opening and pressed downward, forcing the liquid 5 through the filter and the interior cavity of the beverage lid, and into the container through the central valve in a stream. The piston presses the air 20 above the liquid, and it is this pressurized air that forces the liquid 5 through the lid. Once the liquid has drained, the filter press is lifted from the container and the lid 3 removed. Finally, the piston 4 can be pressed further to eject the spent coffee or tea cake 21 into a waste receptacle. The filter can then be removed and discarded or cleaned.

[0043] The piston 4 is covered with a flexible seal 12 to engage the inside of the cylinder. The seal preferably has its maximum diameter 13 at its lowest point so that during ejection of the spent cake, it can clean the inside of the cylinder when the maximum diameter is pushed completely through the cylinder after the cover is removed. The piston 4 has a stop 14 that limits the maximum travel of the piston but allows the maximum diameter 13 of the seal to extend beyond the bottom opening of the cylinder after the cover is removed to eject the spent cake.

[0044] Figure 2 and Figure 3 In the embodiment of the present invention, the beverage cap 30 is attached to the cylinder 2 by a twist-lock coupling 16, wherein a male thread or tab engages with a corresponding female thread or groove to secure the beverage cap in place. Although a twist-lock mechanism is shown, it will be appreciated that various other releasable coupling mechanisms may be employed, such as a snap fit, an interference fit, a magnet, a latch, or any suitable mechanism.

[0045] Figure 4 An alternative version of the beverage press and beverage lid is shown, wherein the support 6A extends radially outward from the beverage lid 30'. This figure also shows an alternative attachment method, wherein the beverage lid is attached to the cylinder via threads 17. Other alternatives may also be implemented, such as securing the beverage lid to the cylinder with a latch.

[0046] Figure 2-Figure 4 The figures in FIG. 1 and FIG. 2 show that the beverage cover includes a central bottom lip 18 that extends below the rim of the open container to prevent the filter press from sliding off the container. Figure 2 In , the bottom step is the lower part of the cover 30. Figure 4 In the embodiment of the present invention, the bottom step 18 is an extension below the lower surface of the beverage cover 30'. Figure 4The alternative cover and support also have an upper cavity 19 to collect liquid that leaks between the cylinder 2 and the cover 30'. In some embodiments, the shape of the support 6 and support 6A is designed to allow air to easily escape from the open container when the filter press rests on top of the container and liquid enters the container. Figure 2 and Figure 3 The twist lock 16 may include a through hole 22 to achieve this. Figure 4 In the alternative, the bottom surface of support 6A may be roughened or grooved to achieve the same result.

[0047] While the cylinder 2 can be made of a variety of materials, it is preferred that the material be transparent or translucent so that the user can observe the filtration process. Glass and clear plastic are suitable materials for the cylinder. While the present invention can be used with a variety of sizes, it has been found that a cylinder with an inner diameter of approximately 2.25 inches and a length of approximately 5 inches performs very well. While the above examples describe a specific filter press design, it will be understood that the beverage cap and valve insert described herein can be configured for use with various other types of beverage filter presses having design features and dimensions that differ from those described above.

[0048] Figure 5 Shown is the paper filter 8 placed in Figure 1A-1B In the beverage lid. Figure 5 As shown, the shape of the paper filter (e.g., circular) is designed to correspond to the same shape of the inner cavity of the beverage cover, so that when the beverage cover is coupled to the cylinder, for example, via the aforementioned twist-lock mechanism, the periphery of the filter engages the outer periphery of the raised portion 35a of the inner cavity and seals against the bottom opening of the cylinder. It will be appreciated that the heights of the plurality of protrusions 34 can vary based on their position within the inner cavity, so that the planar top surface extends along a common plane to support the filter paper. Similarly, the additional support member 44 of the valve insert 40 extends to the same horizontal plane to provide additional support for the filter in the valve area.

[0049] Figure 6A cross-sectional view shows a beverage cap 30 supporting a paper filter 8 within the interior cavity 31 of a main body 35. As shown, the paper filter 8 rests on the top flat surface of a plurality of protrusions 34 extending upward from the bottom surface 33 of the interior cavity. This bottom surface 33 is slightly inclined toward the central opening and valve insert 40. It can be seen that the protrusions are sized so that the top surface supports the paper filter along a horizontal plane. This view also illustrates how the valve insert 40 is installed within the main body 35. The bottom surface 37 drops downward into the center portion of a recess defined within the lower protrusion 38. The valve insert 40 is inserted from above and into the interior cavity, resting within the recess 38b within the protrusion 38. When the valve insert is pressed into place, transverse protrusions 42 extending from the valve body 41 matingly receive corresponding grooves 38a in the center portion of the recess, securing the valve insert via a snap-fit ​​connection between the protrusions and grooves. This snap-fit ​​connection secures the valve insert 40 within the main body 35, with the movable valve 43 positioned directly above the bottom opening 39. This configuration is advantageous because the valve is trapped within the recessed portion and can only be removed from above, which prevents the valve from accidentally falling into the beverage. Additional details of the valve insert can be seen Figures 10A-11C .

[0050] Figure 7 Shown Figure 1A-1B 30 . The left side view, right side view, front view and rear view are the same. As shown, the body includes a twist-lock coupling portion, which includes four convex tabs 32 extending from opposite sides of the upper edge, which are received in corresponding concave grooves or slots in the beverage filter press cylinder support. In this embodiment, the convex tabs 32 have an inclined lower side 32a, which increases the engagement force of the coupling portion when the beverage cover is twisted in the concave groove, thereby providing a sealing joint between the bottom opening of the cylinder and the periphery of the internal cavity of the beverage cup to seal the filter in place. This embodiment also includes a serpentine grip feature 36 that facilitates manual operation and rotation of the beverage cover. Although specific twist-lock coupling portions and grip features are shown here, it will be understood that any suitable coupling method or alternative design may be used.

[0051] Figure 8A top view of a beverage cup 30 is shown, illustrating additional details of the arrangement or pattern of multiple protrusions 34 extending from the bottom surface 33 of the internal cavity 31. In this embodiment, the protrusions occupy a substantial portion of the area, for example, 30% to 70%, 40% to 60%, or typically approximately 50%. In this embodiment, the protrusions 34 are diamond-shaped and oriented in different directions, although it is understood that the protrusions may have different shapes and orientations. In some embodiments, the protrusions are all the same size and / or shape, while in other embodiments, the protrusions are of different sizes and / or shapes. In this embodiment, the protrusions 34 are arranged to avoid any direct flow path between the peripheral and central valve areas. Additionally, the protrusions are distributed in a regular pattern throughout the internal cavity to better support the filter and are discontinuous between the peripheral and central areas. In some embodiments, the discontinuous protrusions are sized and arranged to have multiple spaces between adjacent protrusions in each direction, so that the protrusions act as baffles to restrict and regulate pressurized flow through the internal cavity, providing a more uniform application of pressure to the filter to prevent rupture. Similarly, valve insert 40 includes support members 44 that extend upward and support the filter portion above or immediately adjacent the valve to further inhibit filter rupture in the central region. In this embodiment, there are four diamond-shaped support members 44 distributed around the valve. While this embodiment shows a particular shape, number, and pattern of protrusions 34 and support members 44, it will be appreciated that these elements may have different sizes, shapes, numbers, or patterns to achieve a similar effect.

[0052] Figure 9 Shown Figure 1A-1B 3. The underside of the beverage cap is shown. The underside includes a recessed surface 37 that is slightly inclined toward a central raised portion 38 that receives the valve insert and includes an opening 39 for passage of fluid from the valve. The movable valve member 43 is visible through the opening 39. In this embodiment, the movable valve member 43 is a dome made of a flexible material (e.g., an elastomer) with one or more slits (e.g., a cross slit) that opens when the upstream pressure exceeds a minimum pressure.

[0053] Figures 10A-10B An exemplary valve insert 40 is shown, according to some embodiments, which may be used in Figure 1A-1BIn the beverage cap. As shown in the figure, the valve insert 40 includes a valve body 41 having a laterally extending protrusion 42 that serves as a snap-fit ​​connection with a corresponding groove in the beverage cap body. A plurality of support members 44 protrude upward from the valve body, each having a top flat surface for engaging and supporting a filter above and / or directly adjacent to the valve to prevent the filter in the central area from rupturing. At the center, the valve body supports a movable valve member 43, which, as shown, is a dome-shaped membrane with a central cross-cut slit. The movable valve member can be formed by a deformable or flexible material layer (e.g., an elastic membrane) attached to the valve body. The valve body and support member can be formed by a rigid or substantially rigid material (e.g., a hard plastic or elastomer, a semi-rigid elastomer). The valve body and support member can be formed as an integral component or can be separate components combined together. The valve insert 40 can be provided as a separate part for replacing a used or defective valve insert in an existing beverage cap. Figure 11A 、 Figure 11B and Figure 11C An elevational side view, a top view and a bottom side view of the valve insert 40 are shown, respectively. Figure 11A Shown is a side profile of a circular valve body 41, a laterally extending protrusion 42 at the top of the valve body, and a plurality of support members 44 extending upwardly from the top surface of the valve body. Figure 11B A top view of the valve insert 40 is depicted, showing four diamond-shaped support members 44 distributed around a central valve member 43 . Figure 11C A bottom view of a valve insert 40 is depicted, showing the underside of a movable valve member 43, which is a domed elastic membrane with cross-cut slits. The movable valve member can be coupled to the valve body by any suitable means, such as a snap-fit ​​coupling or overmolding within the valve body. While a particular design of a valve unit is depicted herein, it is understood that the valve insert can include various other coupling mechanisms (e.g., corresponding male / female threads, tabs, magnets, etc.) and can include support members of various other sizes, shapes, and dimensions (e.g., square, circular, polygonal, or oblong) arranged in different orientations or patterns.

[0054] Figure 12A Another embodiment of a beverage cap 30 is shown having an alternative design of a valve insert 40', a detailed view of which is shown in FIG. Figure 12B In this embodiment, the valve insert 40' includes six support members 44', each support member having an oval pill shape. The valve insert 40' may additionally include any of the features or attributes previously described.

[0055] Figure 13-16Alternative designs of beverage lids with protrusions of different sizes, shapes, and patterns within the internal cavity according to some embodiments are shown. As in the previous embodiments, these designs include multiple protrusions that are configured to support the filter and promote more uniform pressure distribution. In these embodiments, the protrusions are discontinuous between the periphery and the central valve area and are evenly distributed in a pattern with substantially no direct flow path between the periphery and the central valve area to more evenly distribute the pressurized flow and avoid pressurized areas that cause the paper filter to rupture. In some embodiments, the beverage lid includes ten or more protrusions (e.g., 10 or more, 20 or more, 30 or more) to support the filter.

[0056] Figure 13 A beverage cap 30A is shown having a plurality of polygonal shaped protrusions 34' of varying sizes. Figure 14 A beverage cap 30B is shown having a plurality of protrusions 34" having an oval pill shape, being slightly curved and arranged in a spiral pattern around a central valve area. Figure 15 A beverage cap 30C is shown having a plurality of protrusions 34'" having an oval pill shape, being linear and arranged in an alternating cross pattern. Figure 16 A beverage cap 30D is shown having a plurality of protrusions 34"" having different polygonal shapes (eg, regular and irregular polygons) of varying sizes and arranged in a complex pattern.

[0057] Figure 17 Another embodiment of a beverage cover is shown, which uses a gasket to enhance the seal between the inner cavity of the filter cover, the filter and the bottom opening of the outer cylinder. As shown in the figure, the beverage cover 30 ' includes Figure 1AThe embodiments include substantially the same or similar features. For example, this embodiment includes a lid 31, a locking tab 32, a bottom surface 33, and a plurality of protrusions 34 arranged in a pattern to prevent any specific flow path between the periphery and the central opening. This embodiment also includes an annular groove 51 extending around the periphery of the open cavity to receive a gasket 50. In this embodiment, the annular groove has an outer diameter of approximately 62 mm and an inner diameter of approximately 54 mm, resulting in a groove width of approximately 4 mm, suitable for receiving a gasket with a width of approximately 4 mm. It will be appreciated that these dimensions can be varied; for example, a wider or thinner gasket can be used, or the gasket size can be adapted to the dimensions of the beverage lid and outer cylinder (e.g., a larger filter press using a larger gasket). In some embodiments, the gasket 50 is sized such that its top surface is substantially flush with the top surface of the protrusions. In some embodiments, the gasket 50 is sized such that its top surface extends slightly higher than the top surface of the protrusions (e.g., approximately 1-4 mm, typically approximately 1-2 mm). In this embodiment, the gasket 50 is an annular ring sized to fit snugly within the annular groove. The gasket 50 can be made of an elastomer such as silicone or any suitable material to promote an airtight seal between the bottom opening of the outer cylinder, the filter, and the beverage cap. Using a gasket in this manner is beneficial in promoting a seal because the increased pressure generated within the beverage cap cavity during filter pressing may cause leaks. Additionally, the gasket inhibits fatigue of the rigid polymer beverage cap because the gasket absorbs and distributes the stresses generated by tightening the outer cylinder to the beverage cap. Figure 17 As shown, the gasket 51 is a separate component that is placed within the annular groove of the beverage lid. A filter 8 (paper, fabric, or metal filter) is placed within the beverage lid so that its periphery is positioned above the gasket, thereby securing the filter and creating a seal between the gasket and the outer cylinder of the filter press. While the gasket is removable for cleaning and / or replacement, it does not need to be removed between uses and can remain in place within the annular groove through a friction fit during rinsing and / or cleaning between uses.

[0058] Figures 18A-18E Shown are various views of an embodiment of a beverage lid designed for use with a gasket (the removable pressure-activated valve is not shown). Figure 18A A perspective top view of the beverage cap 30 ′ is shown, illustrating the annular groove 51 extending along the periphery of the open cavity in the body 31 . Figure 18B A top view is shown showing the staggered, distributed pattern of protrusions 34 that avoid any specific flow path, and the annular grooves 51 provided along the periphery of the gasket. Figure 18CAs shown in the cross-sectional view, the annular groove 51 can extend further below the bottom surface 33 of the open cavity having the plurality of protrusions 34. This configuration creates a bottom-facing surface 37 that is lower than the inner area 37A surrounding the central opening 39. In some embodiments, the inner diameter of the internal cavity is between 50 and 100 mm. In the illustrated embodiment, the inner diameter of the internal cavity is approximately 63 mm. This size of lid is well-suited for a beverage press with a capacity of approximately 10 ounces. As shown, the protrusions are relatively small, with a maximum transverse dimension of approximately 10 mm or less, typically approximately 10 mm or less. In this embodiment, the protrusions are each diamond-shaped, with each side measuring approximately 2.5 mm, although other sizes and shapes can be used. In this embodiment, the protrusions are arranged in a regular pattern, with the protrusions spaced apart by distances ranging from 1 mm to 20 mm, more typically from 1 mm to 10 mm, and typically from 1.8 mm to 5.5 mm. This pattern is repeated throughout the entire internal cavity, eliminating a defined flow path or channel from the periphery to the opening. Figure 18B Scales are shown to further illustrate the sizes, dimensions, and relationships between features of the exemplary embodiments. However, it is understood that these concepts and configurations are not limited to these sizes and dimensional relationships and can be modified. It is understood that these sizes and relationships between various features also apply to Figures 1A-9 Various other embodiments.

[0059] It will be appreciated that various other features of the beverage lid may differ from those previously described.In some embodiments, the bottom surface may include a contoured area having patterned grooves. Figure 18D and Figure 18E In this embodiment, the bottom surface 37 defining the annular groove extends below an inner region 37A surrounding the central opening 39, which also includes grooves 37A1 extending in a curved or wavy pattern.

[0060] On the other hand, the various features of the beverage lid can be further modified to adapt to different uses and types of filter presses. It is worth noting that the above-mentioned beverage lid is usually used with a standard beverage filter press with a capacity within the range of about 10 ounces. When used with a larger or extra-large beverage filter press, such as a beverage filter press with an amplified design with a capacity greater than 10 ounces (e.g., 15 ounces or greater, about 20 ounces), the amount of beverage filtered through the valve is twice as much, so the time required for the user to filter the beverage may be greatly extended. Therefore, in the beverage lid used with a larger beverage filter press, a larger capacity valve or multiple valves can be used, which release the filtered beverage at the same time to improve the efficiency of filtering the beverage in the larger filter press. In some embodiments, the valve can be replaced with multiple valves, each of which is a pressure-activated valve that opens when pressure exceeds a certain threshold. In some embodiments, multiple valves can be separated and arranged in a position that deviates from the center. In some embodiments, multiple valves are in a position separated along the bottom of the beverage lid. In some embodiments, the valves are separated far enough so that the filter press can discharge the filtered beverage into two separate containers, or discharge into an attachment that diverts the flow into two or more containers. In some embodiments, the beverage lid comprises two spaced-apart valves. In some embodiments, the beverage lid comprises three spaced-apart valves. Figures 19A-20E Examples are shown.

[0061] Figures 19A-19E Various views of an embodiment of a beverage cap (removable pressure-activated valve not shown) configured for use with an oversized beverage press, such as a 20 ounce press. Figure 19A A top perspective view of a beverage cap 30" is shown showing the beverage cap having an internal cavity 31 with a plurality of protrusions 34 on a bottom surface 33, as previously described, but with a plurality of openings 39 for pressure-activated valve inserts (valves not shown). In this embodiment, the beverage cap 30" includes two valve openings 39 for two valve inserts, allowing the valves to simultaneously discharge the filtered beverage during filtration with an oversized filter press. This design doubles the speed and efficiency of extracting the filtered beverage from the filter press, thereby improving ease of use and reducing filtration time for the user. As with the previous embodiments, the beverage cap includes an annular groove 51 around the periphery of the internal cavity, which is configured to receive a gasket, such as a silicone ring, to improve the seal between the outer cylinder of the filter press and the periphery of the internal cavity defining the filter chamber.

[0062] As with the previous embodiments, the protrusions are distributed in a regular pattern on the bottom surface to improve the uniformity of pressurized fluid flow throughout the chamber. In some embodiments, the cover lacks any elongated ridges that define a flow path leading to the opening(s). In this embodiment, the protrusions are arranged to avoid any designated fluid flow path or channel leading to the opening(s), thereby providing a more uniform filter pressure distribution and preventing breakage when using paper filters. In this embodiment, the protrusions comprise alternating diamond shapes, although it will be appreciated that various other shapes, designs, and arrangements can be implemented while still conforming to the aforementioned advantageous concepts. In this embodiment, each of the plurality of protrusions has a maximum lateral dimension of less than 10 mm, typically less than 6 mm, and typically approximately 5 mm or less. In the illustrated embodiment, each protrusion is diamond-shaped. In some embodiments, each diamond has a side length of approximately 4 mm or less, typically approximately 2.5 mm. In some embodiments, the protrusions are distributed and arranged in a pattern such that each protrusion is separated by a distance less than its maximum lateral dimension. In some embodiments, the protrusions are spaced at regular intervals ranging from 3 to 8 mm, typically from 3 to 6 mm. It will be appreciated that these dimensions may apply to any of the embodiments described herein.

[0063] like Figure 19C As shown in the top view of , the valve openings 39 are spaced far enough apart to allow regular spacing between the openings and between the edge of the interior cavity and each opening. For example, a beverage lid having an interior cavity with a diameter of approximately 75 mm may include two openings that are 25 mm apart (center to center), with each opening approximately 25 mm from the periphery of the interior cavity (center to periphery). In addition, the diameter of each opening may be approximately 10-15 mm, typically about 13 mm. It will be understood that this configuration is suitable for use with oversized beverage presses (e.g., 15-25 ounce presses, typically 20 ounce presses), and that various other sizes may be used to correspond to beverage presses of various other sizes. As shown in FIG. Figure 19C As shown in the cross-sectional view of FIG, the annular groove 51 can further extend below the bottom surface 33 of the open cavity having the plurality of protrusions 34. This configuration can produce a bottom surface 37 that is lower than the inner area 37A surrounding the valve protrusion 38. Figure 19D As shown in the bottom view of FIG, each valve opening 39 extends through the bottom of the internal cavity and is provided by a correspondingly sized protrusion 38 extending from the underside surface 37. Figure 19E Example elevations of various features are shown for illustrative purposes.

[0064] Figures 20A-20EShown are various views of another beverage cap embodiment (not showing the removable pressure-activated valve) configured for use with an oversized beverage press (e.g., a 20 oz. press). In this embodiment, the beverage cap includes three valve openings for three valve inserts. Figure 20A A top perspective view of a beverage cap 30" is shown showing the beverage cap having an internal cavity 31, a plurality of protrusions 34 on a bottom surface 33, as previously described, and a plurality of openings 39 for pressure-activated valve inserts (valves not shown). In this embodiment, the beverage cap 30" includes three valve openings 39 for three valve inserts, allowing the valves to simultaneously discharge the filtered beverage during filtration with the filter press. This design increases the speed and efficiency of extracting the filtered beverage from the filter press by three times, thereby improving ease of use and reducing filtration time for the user. As with the previous embodiment, the beverage cap includes an annular groove 51 around the periphery of the internal cavity, which is configured to receive a gasket, such as a silicone ring, to improve the seal between the outer cylinder of the filter press and the periphery of the internal cavity defining the filter chamber.

[0065] As with the previous embodiment, the beverage lid includes a plurality of protrusions extending upwardly from the bottom surface. Figures 19A-19E These aspects may include, but are not limited to, the size and shape, dimensions, arrangement, distribution, and spacing of the plurality of protrusions such that the beverage cap provides improved pressurized flow distribution while avoiding designated flow channels or flow paths that may cause rupture of the paper filter.

[0066] like Figure 20C As shown in the top view of , the three valve openings 39 are well spaced apart at regular intervals between the openings and between the edge of the internal cavity and each opening. For example, a beverage lid having an internal cavity with a diameter of about 75 mm may include three openings that are spaced apart and equidistant, for example, spaced apart from each other at the points of an equilateral triangle at a distance d1 (center to center) (e.g., 22 mm), each opening being about 25 mm (center to periphery) from the periphery of the internal cavity. In addition, the diameter of each opening may be about 10-15 mm, typically about 13 mm. It will be understood that this size is suitable for use with oversized beverage presses (e.g., 15-25 ounce presses, typically 20 ounce presses), and various other sizes may be used to correspond to beverage presses of various other sizes. This arrangement provides more uniform pressurization within the internal cavity to ensure consistency in beverage preparation and to inhibit rupture of the paper filter. It will be understood that this configuration may include Figure 19E Same or similar dimensions as shown. Figure 20EAs shown in the cross-sectional view of , the annular groove 51 can further extend below the bottom surface 33 of the open cavity having the plurality of protrusions 34. This configuration can produce a portion 37A of the bottom surface 37 that is lower than the inner area surrounding the valve opening 39.

[0067] It is worth noting that various other features of the beverage lid may differ from those previously described.In some embodiments, the bottom surface may include a contoured area having patterned grooves. Figure 18D and Figure 18E In this embodiment, the bottom surface 37 defining the annular groove extends below an inner region 37A surrounding the central opening 39, which also includes a groove 37A1 extending in a curved or wavy pattern.

[0068] While the above is a complete description of specific embodiments of the present invention, it should not be construed as limiting the scope of the invention as defined by the claims. The various features, embodiments, and aspects of the invention described above may be used individually or in combination. Furthermore, the present invention may be used in any number of environments and applications beyond those described herein without departing from the broader spirit and scope of this specification. Accordingly, this specification and the accompanying drawings should be considered illustrative rather than restrictive. It should be appreciated that the terms "including," "comprising," and "having" as used herein are specifically intended to be understood as open-ended terms, while the term "approximately" refers to + / - 10% of the stated value. It will be understood that the various figures are drawn to scale, and reference will be made to the scales indicated on the various figures, and that the various dimensions of the beverage lid, including features, spacings, and relationships, as well as the ratios between these features, can be readily deduced and determined directly from the figures. It will be further understood that the various concepts and configurations are not limited to the specific dimensions described, and that the dimensions and ratios indicated may be varied and / or modified depending on the specific application and still conform to the inventive concepts described herein. In some embodiments, the configuration may include details according to the dimensions shown, or may be modified in any practicable manner as desired (e.g., by ±10%, ±25%, ±50%, ±100%, ±200%).

Claims

1. A beverage cover for a beverage filter press, comprising: a body having an upper side and a lower side, the upper side having an open cavity for receiving a filter therein, wherein the body is configured to releasably couple with a cylinder of a beverage press and close a bottom opening of the cylinder when coupled thereto; wherein the upper side of the body has a bottom surface and a central aperture within the open cavity to facilitate passage of fluid during filtration with a filter press, wherein the body includes a plurality of protrusions extending upward from the bottom surface within the open cavity, the plurality of protrusions being configured to support a filter received within the cavity, wherein the plurality of protrusions are non-continuous and distributed across the bottom surface so as to distribute pressurized fluid flow within the cover and inhibit rupture when used with a paper filter; as well as A pressure-activated valve is disposed within the body, wherein the pressure-activated valve is configured to be in a closed configuration when pressure within the cavity is less than a minimum pressure during filtration with the pressure filter, and to activate an open configuration to facilitate fluid flow when pressure is greater than the minimum pressure during filtration with the pressure filter.

2. The beverage cover according to claim 1, wherein: The open cavity includes an annular groove extending along a periphery of the open cavity for receiving a gasket to facilitate sealing of a filter disposed between the bottom openings of the cylinder when coupled to the beverage cap.

3. The beverage cover according to claim 2, wherein: Also includes: A gasket is disposed within the annular groove, wherein the gasket comprises an annular ring made of an elastomer.

4. The beverage cover according to claim 2, wherein: The washer is removable and is snugly received within the annular groove and secured therein by a friction fit.

5. The beverage cover according to claim 1, wherein: The plurality of protrusions are non-continuous and distributed in a substantially regular pattern on the bottom surface.

6. The beverage cover according to claim 1, wherein: Each of the plurality of protrusions has a planar top surface area of ​​approximately 0.25 square inches or less.

7. The beverage cover according to claim 1, wherein: Each of the plurality of protrusions includes a plurality of elongated shapes alternating between different orientations.

8. The beverage cover according to claim 1, wherein: Each of the plurality of protrusions is arranged to avoid any designated flow path between the periphery of the open cavity and the central opening, thereby distributing pressure within the cavity and along the filter.

9. The beverage cover according to claim 1, wherein: Each of the plurality of protrusions is arranged such that a distance between the protrusions is in the range of 2 to 10 mm.

10. The beverage cover according to claim 9, wherein: The spacing between the plurality of protrusions is in the range of 3 mm to 8 mm.

11. The beverage cover according to claim 9, wherein: The plurality of protrusions are spaced at regular intervals throughout the cavity.

12. The beverage cover according to claim 1, wherein: The plurality of protrusions are arranged in a staggered pattern to increase pressure and turbulence within the cavity during the pressing of the coffee beverage, thereby promoting the formation of a fat layer.

13. The beverage cover according to claim 1, wherein: The bottom side of the beverage cover includes a raised inner region surrounding the central opening, the inner region having a plurality of grooves distributed in a curved or wavy pattern.

14. The beverage cover according to claim 1, wherein: The pressure activated valve is removably coupled within the body via a tab configured for a snap-fit ​​coupling.

15. The beverage cover according to claim 1, wherein: The pressure activated valve is a first valve and the beverage cap further includes a second pressure activated valve disposed within the body.

16. The beverage cover according to claim 15, wherein: The first pressure activated valve and the second pressure activated valve are spaced apart from each other and positioned off-center.

17. The beverage cover according to claim 16, wherein: The first pressure activated valve and the second pressure activated valve are separated by a spacing in the range of 20-25 mm.

18. The beverage cover according to claim 1, wherein: Also includes: A third pressure activated valve is disposed within the body.

19. The beverage cap according to claim 18, wherein The first, second, and third pressure activated valves are spaced apart from one another and positioned off-center.

20. The beverage cap according to claim 19, wherein The first, second, and third pressure activated valves are equidistant from one another.

21. The beverage cover according to claim 1, wherein: The pressure activated valve comprises a removable valve insert comprising: Valve body; a movable valve member attached to and supported by the valve body, wherein the movable valve member is movable between an open configuration and a closed configuration to facilitate passage of fluid; and A plurality of support members extend upwardly to support the filter above and / or adjacent to the movable membrane.

22. A beverage filter press assembly comprising: a hollow cylinder having a top opening and a bottom opening; a removable piston configured to be inserted into the top opening and pressed downward to force the liquid in the cylinder; as well as According to the beverage cap of claim 1, the beverage cap is configured to be removably coupled to the hollow cylinder and close the bottom opening of the hollow cylinder.

23. The beverage filter press assembly of claim 22, wherein: The capacity of the hollow cylinder is in the range of 8-12 ounces, and the beverage cap includes a single valve.

24. The beverage filter press assembly of claim 22, wherein: The hollow cylinder has a capacity in the range of 15-25 ounces, and the beverage cap includes a plurality of pressure-activated valves disposed within the body.

25. The beverage filter press assembly of claim 22, wherein: The plurality of protrusions are discontinuous and distributed in a substantially regular pattern on the bottom surface of the cavity of the beverage cover to support the paper filter and provide a more uniform pressure distribution to inhibit rupture of the paper filter.

26. A method of making a beverage, the method comprising: attaching a beverage cap to a beverage filter press having an outer cylinder and an insertable piston, the beverage cap having a body defining an interior cavity, the interior cavity having a pressure-activated valve and a plurality of protrusions on a bottom surface for supporting a paper filter, wherein the plurality of protrusions are non-continuous and arranged in a regular pattern to distribute pressure within the cavity and along the filter to inhibit rupture of the paper filter; Adding coffee powder and hot water into the outer cylinder; pressurizing the internal cavity by depressing the insertable piston within the outer cylinder; as well as The coffee beverage is filtered from the coffee grounds by further depressing the piston, thereby releasing the filtered coffee beverage into the container through the pressure activated valve.

27. The method according to claim 26, wherein Each of the plurality of protrusions comprises a plurality of elongated shapes that alternate between different orientations and are arranged in a regular pattern that avoids any designated flow path to the opening.

28. The method of claim 26, wherein: Each of the plurality of protrusions is arranged such that a distance between the protrusions is in the range of 2 to 10 mm.

29. The method of claim 26, wherein: The beverage cap includes two pressure-activated valves that are spaced apart such that filtering the coffee beverage includes simultaneously releasing the filtered coffee beverage through the two pressure-activated valves.

30. The method of claim 26, wherein: The beverage cap includes three pressure-activated valves spaced apart such that filtering the coffee beverage includes simultaneously releasing the filtered coffee beverage through the three pressure-activated valves simultaneously.

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