Patent Grant
11779148
The invention relates to beverage brewing and in particular to a brewing device for hot or cold brewing of beverages, having a brewing material holder that rotates or otherwise agitates during the brewing process.
Several types of beverages, such as coffee, tea, and herbal drinks, are brewed by infusing or steeping ground or shredded brewing material in water or other liquid. For quick brewing, hot water is typically used. However, cold brewing, that is, infusion of the brewing material in cold or room-temperature water rather than in hot water, is sometimes preferred. For example, some coffee drinkers prefer the flavor provided by cold brewing, and bitterness and acidity can be avoided when brewing certain teas by steeping in unheated water rather than hot water. Such cold brewing is accomplished by submerging a portion of brewing material in unheated water for a period of time to allow the brewing material to infuse the water. While the steeping process may provide a desired result, the time required for cold brewing is longer than that required for brewing in hot water.
Conventional cold-brew steeps require a user to measure and pour an amount of brewing material into the steep liquid. A pre-measured simple drop-in portion of brewing material would be convenient, particularly for use in a brewer that simplifies removal of the brewing material and clean-up of the brewer. A brewer that can be used for both hot- and cold-brewing would provide flexibility, and it would be advantageous if the brewer would be configured to speed the cold-brewing process. The ability to use either loose beverage brewing material or pre-packaged brewing material in a capsule or other container would make such a brewer universally useful.
It would also be advantageous to provide a feature by which the brewing time is reduced when the beverage is cold-brewed. Many people prefer the taste of a cold-brewed beverage, but cold-brewing typically takes a much longer time than does traditional hot-brewing. Adding an agitation or rotation feature to the cold brewer can reduce the cold-brewing time. Another manner of speeding the process would be to increase the flow of brewing liquid through the brewing material. Some conventional devices use a gravity feed to draw water through the brewing material using a percolator-type action, which speeds brewing time somewhat. However, these systems tend to have a motorized system outside the brewing container to provide the gravity action, resulting in a brewer having a large footprint that takes up considerable counter space. Also, the complexity of these systems makes them difficult to clean properly and exposes users to potential build-up of bacteria and other contaminants that affect the taste of the beverage and the health of the user. Other systems use a separate container to store and provide the water to be used to brew the beverage, adding size and complexity to the device.
Therefore, a reliable, rapid cold-brewing system that uses a moving brewing material holder to increase the fluid flow would provide an overall improved brewing experience. It would also be advantageous if such a system could be configured as a compact unit, preferably a unit that could be portable. Flexibility would be provided if the brewing system can also be used to hot-brew a beverage. Such a system that uses the beverage serving vessel as the source of the fluid used to brew the beverage would make the unit more compact and simple to use and clean.
According to an aspect of the invention, a beverage brewer includes a container, a container collar, a brewing material holder, a mesh element, and a drive assembly. The container has an open top, a closed sidewall, and a closed bottom. The container collar is configured to cover a rim of the open top. The brewing material holder is configured to hold brewing material and to be suspended from the container collar and into an interior of the container. The brewing material holder includes a sidewall having an opening, an open top, and a bottom. The mesh element covers the opening in the sidewall of the brewing material holder. The drive assembly is positionable on the container collar and is configured to be mechanically coupled to and rotate the brewing material holder.
The open top of the brewing material holder can open into the open top of the container through the container collar when the brewing material holder is suspended from the container collar into the interior of the container.
The bottom of the brewing material holder can have a closed surface.
The bottom of the brewing material holder can be a bottom cap having a closed surface and configured to be removably coupled to a bottom of the sidewall of the brewing material holder.
The drive assembly can include an electric motor. The drive assembly can include reduction gears.
The brewing material holder can include first cooperative elements, and the drive assembly can include second cooperative elements configured to align and engage the first cooperative elements to mechanically couple the drive assembly to the brewing material holder. For example, the first cooperative elements can include teeth, and the second cooperative elements can include a corresponding coupler having spaced bars configured to align and engage the teeth to mechanically couple the drive assembly to the brewing material holder. The teeth can be, for example, generally triangular in shape.
The drive assembly can be configured to rotate the brewing material holder such that the brewing material holder oscillates.
The container can be made from a transparent material.
The mesh element can be constructed from a material that is selected from the group consisting of nylon mesh, metal mesh, paper mesh, and filter paper.
The brewing material holder sidewall can have a circular cross-section and can include a frame having longitudinal members and connecting circumferential members.
The mesh element can be a first mesh element, and the brewing material holder bottom can include an opening covered by a second mesh element.
The brewing material holder can include a blade projecting inward from an inner surface of the sidewall within an interior of the brewing material holder.
The brewing material holder can include a fin extending outward from an exterior surface of the sidewall. For example, the fin can extend outward from an exterior surface of a bottom end of the sidewall.
According to another aspect of the invention, a beverage brewer includes container means for holding liquid, having an open top, a closed sidewall, and a closed bottom; collar means for covering a rim of the open top; holding means for holding ground brewing material and for being suspended from the collar means and into an interior of the container means, wherein the holding means includes a sidewall having an opening, an open top, and a bottom; mesh means for covering an opening in the sidewall of the holding means; and drive means for mechanically coupling to and rotating the holding means, positionable on the collar means.
The open top of the holding means can open into the open top of the container means through the collar means when the holding means is suspended from the collar means into the interior of the container means.
The drive means can include an electric motor.
According to another aspect of the invention, a beverage brewer includes a container collar, a brewing material holder, and a drive assembly. The container collar is configured to be arranged on a rim of an open top of a container. The brewing material holder is configured to hold brewing material and to be suspended from the container collar such that the brewing material holder opens through the container collar. The brewing material holder includes a sidewall having an opening, a mesh element covering the opening, an open top, and a bottom. The drive assembly is positionable on the container collar and is configured to be mechanically coupled to and impart movement to the brewing material holder.
The beverage brewer can also include a container configured to hold liquid, having an open top, a closed sidewall, and a closed bottom. The brewing material holder can be configured to be suspended from the container collar and into an interior of the container such that the brewing material holder opens into the open top of the container through the container collar.
The drive assembly can include an electric motor, and reduction gears.
The drive assembly can be configured to agitate the brewing material holder.
The drive assembly can be configured to rotate the brewing material holder about an axis.
The drive assembly can be configured to oscillate the brewing material holder.
The brewing material holder can include first cooperative elements, and the drive assembly can include second cooperative elements configured to align and engage the first cooperative elements to mechanically couple the drive assembly to the brewing material holder. For example, the first cooperative elements can include teeth or spaced bars, and the second cooperative elements can include a corresponding coupler having mating spaced bars or teeth configured to align and engage the teeth or spaced bars to mechanically couple the drive assembly to the brewing material holder. The teeth can be, for example, generally triangular in shape.
The mesh element can be constructed from a material such as nylon mesh, metal mesh, paper mesh, and filter paper.
The brewing material holder sidewall can have a circular cross-section and can include a frame having longitudinal members and connecting circumferential members.
The brewing material holder bottom can include an opening covered by another mesh element. Alternatively, the bottom of the brewing material holder can have an entirely closed surface. The bottom of the brewing material holder can be a bottom cap having a closed surface and configured to be removably coupled to a bottom of the sidewall of the brewing material holder.
The brewing material holder can include a paddle blade projecting inward from an inner surface of the sidewall within an interior of the brewing material holder.
The brewing material holder can include a fin extending outward from an exterior surface of the sidewall. For example, the fin can extend outward from an exterior surface of a bottom end of the sidewall.
The beverage brewer can also include control circuitry configured to control the drive assembly to provide selectable movement to the brewing material holder. The beverage brewer can also include a user interface configured to allow user input to the control circuitry.
Corresponding reference characters indicate corresponding components throughout the drawings.
Referring to
Referring to
A side view of the beverage brewing device 10 with the lid cover 22 removed is shown in
With reference to
In order to facilitate placement of the brewing material holder 30, one or more handles or grips can be arranged on the frame 39. For example, a holder handle 38 can be integrally formed as part of the frame 39, or can be attached, such as pivotally attached at the top of the brewing material holder 30 by pivots 38a. A user can lift the brewing material holder 30 from the container 12 by the handle.
As mentioned above, the drive assembly 40 is configured to couple with the brewing material holder 30 and can be used to rotate the brewing material holder 30 in order to provide agitation that can speed a cold-brewing process. Other features can be included to provide further agitation or turbulence as the brewing material holder 30 rotates. For example, fins 31 can be integrally formed on or attached to the bottom cap 33 as shown (or bottom of the brewing material holder 30 if a cap is not used), extending downward and/or outward to provide mixing to the water in the container 12 as brewing progresses. Similar fins can be included elsewhere on the outside of the brewing material holder 30 instead of or in addition to the bottom fins 31. Blades 34 or paddles can also be included that extend into the interior of the frame 39 to urge brewing material to mix within the brewing material holder 30. These blades can be of any size and can extend inward from any point at any angle.
Referring to
An exemplary mesh element 30a of the brewing material holder 30 is shown in
Referring to
For example, the drive assembly 40 can include a drive coupler 47 rotationally coupling the gear 46 to cooperative elements such as vertical bars 48 extending outward to engage the triangular teeth 37 (see
Referring to
Referring to
Thus, the beverage brewing device of the invention can be used to brew a beverage such as coffee, tea, or an herbal infusion, from brewing material such as ground coffee beans, shredded tea leaves, ground or shredded herbs, root shavings, or any other material from which a beverage can be brewed. To brew a beverage, the container is filled with hot or cold water, in order to hot- or cold-brew the beverage. Brewing material is placed in the brewing material holder, in an amount desired for the intended beverage strength. The brewing material holder is suspended in the liquid in the container, supported at an upper end by the container collar, and in time the beverage is brewed by liquid in contact with the brewing material. If rotation is desired in order to speed the brewing process, a drive assembly can be arranged to couple with the brewing material holder. When the drive assembly is actuated, the brewing material holder is rotated or otherwise agitated by the drive assembly, increasing the flow and/or turbulence of the liquid brewing the beverage in order to speed the brewing process. Once the beverage is brewed, the drive assembly can be uncoupled from the brewing material holder and removed, and the brewing material holder can be lifted out of the container, drained, and removed. The pouring lid can then be coupled to the container collar in place of the drive assembly.
In general, the beverage brewer includes a container collar, a brewing material holder, a mesh element, and a drive assembly. The beverage brewer can be configured to be used with an existing container, or can include the container, which serves as the vessel in which the beverage is brewed as well as the vessel in which the brewed beverage is stored and served, and has an open top, a closed sidewall, and a closed bottom. Brewing the beverage in the storage and serving container simplifies the process, cuts down on the counter space needed for brewing, and makes clean-up easier. The container can be made, for example, from a transparent material, such as glass or plastic, so that a brew strength of the brewing or brewed beverage can be observed easily. Lines and markings can be applied to the container to indicate, for example, volume levels of liquid in the container.
The container collar is configured to cover the rim of the open top, providing a surface from which to suspend the brewing material holder and on which to support the drive assembly, and preferably providing a spout to facilitate pouring of the beverage after brewing. As shown and described, it provides a stable outer surface and an inner opening through which the brewing material holder can be lowered into the container and brewed beverage can be poured out of the container.
The brewing material holder is configured to hold brewing material, such as ground brewing material, and to be suspended from the container collar and into an interior of the container. The brewing material holder includes a sidewall having one or more openings, an open top, and a bottom. The sidewall can have any cross-sectional shape, but preferably terminates in an open top that is round, to facilitate rotation of the brewing material holder about a longitudinal axis. For example, the cross-section of the sidewall can be polygonal and abruptly terminate in a round open top, or can be polygonal for the most part, gradually rounding out toward the circular top. The internal shape of the sidewall can be selected to produce the most advantageous fluid motion within the brewing material holder, based on the rotational movement, direction, and speed of the holder provided by the drive assembly.
The brewing material holder sidewall can be a solid surface, with the one or more openings cut from the solid sidewall. Alternatively, for example, the sidewall can be a frame made of frame elements that connect and leave openings between the elements. For example, the sidewall can have a circular cross-section and can include a frame having longitudinal members and connecting circumferential members, leaving openings in the spaces between the frame members. To further influence movement of the liquid and brewing material within the brewing material holder during the brewing process, the brewing material holder can include implements within and on the outside of the sidewall to direct fluid flow and/or to increase turbulence. For example, one or more blades, such as paddle blades, can be attached to or integrally formed with the sidewall, projecting inward from an inner surface of the sidewall within an interior of the brewing material holder. Each blade can take any size and shape beneficial to directing the flow of liquid as desired. Alternatively, or in addition, the brewing material holder can include one or more fins, each extending outward from an exterior surface of the sidewall. For example, the fins can extend outward from an exterior surface of a bottom end of the sidewall.
A mesh element covers each opening in the sidewall of the brewing material holder. The number, locations, and sizes of the openings can be selected for advantageous flow of brewing liquid through the sidewall and therefore through the brewing material held in the brewing material holder. A single mesh-covered opening can be used, or several strategically-placed mesh-covered openings can be present to direct liquid flow through and within the brewing material holder. The sizes of the openings can be uniform or varied, as can the material and mesh size of the mesh elements. Alternatively, a single mesh tube can be inserted into the brewing material holder and attached to the inner surface of the brewing material holder, of a size large enough to cover the opening or all the multiple openings. Regardless of the form of the one or more mesh elements, each can be constructed from any material that can withstand the fluid dynamics of the beverage brewer in operation. For example, the material can be any nylon mesh, metal mesh, paper mesh, and/or filter paper having openings of a suitable size to contain the ground brewing material.
The drive assembly is positionable on the container collar and is configured to be mechanically coupled to and rotate the brewing material holder. For example, the various components of the drive assembly can be affixed to a platform or other base element, which in turn can be configured to couple to or rest on the upper portion of the container collar. The drive assembly can couple with the container collar in any manner, such as by friction-fit or snap-fit, or can sit on the collar, preferably keyed to a stable position so as to remain stationary during use. Alternatively, the drive assembly base can be attached to the container collar by a hinge, allowing the drive assembly to be pivoted into place when needed for a brewing process, and pivoted away from the container collar when brewing is finished or when the brewing material holder is inserted into the container through the container collar.
The open top of the brewing material holder preferably opens into the open top of the container through the container collar when the brewing material holder is suspended from the container collar into the interior of the container. That is, the container collar preferably has an annular shape, and is arranged on the rim of the open top of the container. The brewing material holder is lowered, bottom end first, through the central opening in the container collar and into the container until an outward projection at the top of the brewing material holder abuts an inward projection in the central opening of the container collar. The brewing material holder is thus held in place in a manner in which it can be rotated about its longitudinal axis while the lower portion is suspended within the container. Looking from above, the open top of the brewing material holder now opens into the open top of the container through the container collar. Arranged in this way, brewing material can be added to the interior of the brewing material holder after the brewing material holder is in place, if desired. Thus, hot or cold water can be added to the container before putting the brewing material holder in place in the container collar, or the brewing material holder can be put in place first, and then hot or cold water can be poured into the brewing material holder and over the brewing material, filling the container through the mesh elements covering the openings in the brewing material holder.
During the brewing process, fluid motion within the brewing material holder might be directed upward at least partially and temporarily, and suspended pieces of ground brewing material could be present at any location along the length of the brewing material holder, from the bottom to the open top. Therefore, when the drive assembly is positioned on the container collar for brewing, it preferably will cover the open top of the brewing material holder so as to prevent spillage during the brewing process. Thus, the drive assembly platform or other base element preferably takes the general shape of the open top of the brewing material holder. When the drive assembly is positioned on the container collar for brewing, it also couples with the brewing material holder so that the rotation provided by the motor can be transferred to the holder. To this end, the brewing material holder can include first cooperative elements, and the drive assembly can include second cooperative elements configured to align and engage the first cooperative elements to mechanically couple the drive assembly to the brewing material holder. For example, the first cooperative elements can include teeth, and the second cooperative elements can include a corresponding coupler having spaced bars configured to align and engage the teeth to mechanically couple the drive assembly to the brewing material holder. The teeth can be, for example, generally triangular in shape. Any type of coupling arrangement and cooperative element design is contemplated for use by the invention.
The bottom of the brewing material holder can have a closed surface, so as to prevent any liquid from passing through the bottom end of the holder. The bottom of the brewing material holder can be integrated into the frame of the brewing material holder, attached to other frame elements. Alternatively, for example, the bottom of the brewing material holder can be a bottom cap having a closed surface and configured to be removably coupled to a bottom of the sidewall of the brewing material holder, such as by screwing on or snapping into place at the bottom of the holder frame. The bottom cap can include fins on the outer surface, as described above. Regardless of whether the brewing material holder bottom is integrated into the frame or removable, it need not have a completely closed surface, and instead can include one or more openings, each covered by a mesh element.
The drive assembly can include an electric motor of any type as the driving force for the assembly, and can be powered by an on-board battery, a fuel cell, a small solar panel mounted on the top assembly, or via an external AC or battery source. The drive assembly can include reduction gears if necessary or any other arrangement used to transfer the appropriate amount of output from the motor to the brewing material holder. A spring-wound motor, hand-cranked motor, or any other type of motor can be used instead of an electric motor, as would be apparent to those of skill in the art, or motion can be controlled by a hand crank or wound spring or other biased element with no motor at all. Controls for the motor can be provided by control circuitry and can be made available to the user via a user interface that can include a panel or individual buttons or knobs arranged on the top assembly or elsewhere. These controls can include an actuation control to turn the motor on and off, or actuation can be controlled automatically, for example, by pivoting the drive assembly into place above the brewing material holder and completing an interlock connection. The motor can be simple in function, causing rotation in one direction at a single speed, or the speed can be controllable by the user, in steps or continuously variable. The drive assembly can be configured to rotate the brewing material holder in either direction, or in both directions in a sequential pattern, such that the brewing material holder oscillates back and forth. The speed of rotation should be great enough to agitate the brewing material in the liquid within the brewing material holder, so as to speed the brewing process, but not so great as to induce centrifugal force that would push and hold the brewing material against the inner sidewall of the brewing material holder. All of these variables are preferably made selectable by the user via the user interface. Thus, in some embodiments the user can select the direction, speed, extent, and duration of the motion in any combination.
Further, the drive assembly need not cause the brewing material holder to rotate about a static axis. The drive assembly can be coupled to the brewing material holder on a movable spindle connected to a cam, for example, such that the rotational axis moves within the container, laterally and/or at an angle, affecting the fluid dynamics of the brewing process. Alternatively, the drive assembly can be configured to make the brewing material holder jitter or otherwise move erratically, or to simply move back and forth, laterally or in the motion of a pendulum, or in an eccentric pattern. Any coupling between the drive assembly and brewing material holder that can be used to achieve the desired motion of the brewing material holder is contemplated for use with the beverage brewer of the invention. Likewise, the inner lip of the container collar on which the brewing material holder is supported, and the surface of the brewing material holder that rests on the container collar, can be shaped to assist in providing the desired motion, such as by being curved radially or circumferentially to provide support for the motion. One or more bearings or other elements can be arranged at the interface between the container collar and the brewing material holder in order to reduce friction and wear.
Thus, the beverage brewer of the invention includes container means for holding liquid, collar means for covering a rim of the container means, holding means for holding ground brewing material and for being suspended from the collar means and into an interior of the container means, mesh means for covering an opening in the sidewall of the holding means, and drive means for mechanically coupling to and rotating the holding means, positionable on the collar means. The beverage brewer as contemplated by the inventor is not limited to any particular disclosed means, and instead encompasses any such means known or unknown to those of skill in the art, as arranged and configured in this disclosure.
The present invention has been described by way of example and in terms of preferred embodiments. However, the present invention as contemplated by the inventor is not strictly limited to the particularly disclosed embodiments. To the contrary, various modifications, as well as similar arrangements, are included within the spirit and scope of the present invention. The scope of the appended claims, therefore, should be accorded the broadest reasonable interpretation so as to encompass all such modifications and similar arrangements.
This is a continuation of U.S. patent application Ser. No. 17/326,512, which was filed on May 21, 2021, now U.S. Pat. No. 11,627,827; which in turn is a continuation-in-part of U.S. patent application Ser. No. 16/669,142, which was filed on Oct. 30, 2019, now U.S. Pat. No. 11,064,836; which in turn is a continuation-in-part of U.S. patent application Ser. No. 15/702,727, which was filed on Sep. 12, 2017, now U.S. Pat. No. 10,575,672, the entire disclosures of which are incorporated herein by this reference.
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| Number | Date | Country | |
|---|---|---|---|
| Parent | 17326512 | May 2021 | US |
| Child | 18133012 | US |
| Number | Date | Country | |
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| Parent | 16669142 | Oct 2019 | US |
| Child | 17326512 | US | |
| Parent | 15702727 | Sep 2017 | US |
| Child | 16669142 | US |
