COFFEE AND TEA BREWING SYSTEM AND METHOD

Abstract

A coffee and tea brewing system includes a carafe assembly including a container configured to hold the brewed coffee or tea; a brewing assembly configured to be selectively coupled to the container of the carafe assembly for brewing of coffee or tea and selectively removed from the container of the carafe assembly when serving the brewed coffee or tea, the brewing assembly comprising a mesh filter assembly configured to allow for separation of the coffee grounds or tea leaves from the brewed coffee or tea, and an agitation mechanism configured to selectively agitate the coffee grounds or tea leaves and associated brewing coffee or tea during brewing; and a heating assembly configured to support the carafe assembly and selectively add heat thereto. The agitation is through manual manipulation of a paddle adjacent the mesh filter assembly. A method of brewing coffee or tea is disclosed using the system.

Claims

1. A coffee and tea brewing and heating method including the steps of providing a system for brewing coffee or tea within a carafe; manually manipulating an agitating paddle within the carafe during brewing; filtering, after brewing the coffee or tea, via an internal assembly filters to remove all coffee grounds or tea leaves leaving the brewed coffee or tea in the carafe; and placing the carafe upon an electric heating base which utilizes steam heat to control the temperature of the coffee or tea during serving.

2. A coffee and tea brewing system comprising: A carafe assembly including a container configured to hold the brewed coffee or tea; A brewing assembly configured to be selectively coupled to the container of the carafe assembly for brewing of coffee or tea and selectively removed from the container of the carafe assembly when serving the brewed coffee or tea, the brewing assembly comprising a mesh filter assembly configured to allow for separation of the coffee grounds or tea leaves from the brewed coffee or tea, and an agitation mechanism configured to selectively agitate the coffee grounds or tea leaves and associated brewing coffee or tea during brewing; and A heating assembly configured to support the carafe assembly and selectively add heat thereto.

3. The coffee and tea brewing system according to claim 2 wherein the brewing assembly includes a brewing lid engagable with an open top of the container of the carafe assembly.

4. The coffee and tea brewing system according to claim 3 wherein the brewing lid includes an integral fill aperture and a removable fill plug allowing for convenient filling of the container of the carafe.

5. The coffee and tea brewing system according to claim 3 wherein the brewing assembly includes a downwardly extending stir rod which is slidingly inserted through an aperture portion of the brewing lid and coupled to the mesh filter assembly and the agitation mechanism.

6. The coffee and tea brewing system according to claim 5 wherein the agitation mechanism includes a paddle affixed at its intermediate portion to the stir rod and extending perpendicularly outward therefrom.

7. The coffee and tea brewing system according to claim 6 wherein the brewing assembly includes a paddle knob coupled to a distal upper end of the stir rod and allows for manual rotation of the paddle.

8. The coffee and tea brewing system according to claim 6 wherein the mesh filter assembly is coupled to a lower distal end of the stir rod and includes a plurality of included mesh filter sections and an outer lip seal around a perimeter edge, wherein a diameter of the lip seal is configured to form a water-tight seal against an inner surface of the container.

9. The coffee and tea brewing system according to claim 6 wherein the mesh filter assembly includes a disposable paper filter held in position against a bottom surface of the mesh filter sections via a retainer ring.

10. The coffee and tea brewing system according to claim 2 further including a serving lid configured to fit an open top of the container of the carafe assembly for serving the brewed coffee or tea.

11. The coffee and tea brewing system according to claim 10 wherein the serving lid includes a serving lid knob, a service lid extension extending into the open top of the container of the carafe assembly, a service lid pour cutout in the extension configured to be aligned with a spout of the container for serving the coffee or tea, and an optional mesh screen on the extension spanning the pour cutout.

12. The coffee and tea brewing system according to claim 2 wherein the heating assembly provides a flow of steam heat around a portion of the carafe assembly.

13. The coffee and tea brewing system according to claim 12 wherein the heating assembly is an electrical heating device including a user settable timing control mechanism.

14. The coffee and tea brewing system according to claim 12 wherein the heating assembly includes a carafe bracket configures to stabilize the carafe assembly upon the heating assembly while also directing steam over portions of the carafe assembly.

15. The coffee and tea brewing system according to claim 14 wherein the carafe bracket is a hollow cylinder-shaped vertical structure having a bracket flange portion across a bottom surface.

16. The coffee and tea brewing system according to claim 15 wherein the bracket flange includes integrally-formed steam apertures and hemispherical protrusions.

17. The coffee and tea brewing system according to claim 2 wherein the container of the carafe assembly is formed as a transparent open topped cylindrical container capable of containing multiple cups of brewed coffee formed of high-temperature glass material, wherein the container includes a conventional pour spout, a D shaped handle tightly retained upon the glass container by a metal handle strap affixed to the handle and extending around and encompassing the container.

18. A method of brewing coffee or tea comprising the steps of: Providing a carafe assembly including a container configured to hold the brewed coffee or tea; Coupling a brewing assembly to the container of the carafe assembly for brewing of coffee or tea, wherein the brewing assembly comprises a mesh filter assembly and an agitation mechanism; Placing coffee ground or tea leaves within the container supported on the mesh filter assembly; Placing hot water to be brewed in the container; Manually operating the agitating mechanism for agitating the coffee grounds or tea leaves and associated brewing coffee or tea during brewing; Removing the brewing assembly from the container wherein the mesh filter assembly provides for separation of the coffee grounds or tea leaves from the brewed coffee or tea during removal of the brewing assembly; and Selectively heating the carafe assembly via a heating assembly that selectively supports the carafe assembly.

19. The method of brewing coffee or tea according to claim 18 wherein the brewing assembly includes i) a brewing lid engagable with an open top of the container of the carafe assembly, ii) a downwardly extending stir rod which is slidingly inserted through an aperture portion of the brewing lid and coupled to the agitation mechanism which includes a paddle affixed at its intermediate portion to the stir rod and extending perpendicularly outward therefrom and coupled to the mesh filter assembly at a lower distal end of the stir rod.

20. The method of brewing coffee or tea according to claim 19 wherein the heating assembly provides a flow of steam heat around a portion of the carafe assembly, and wherein the heating assembly is an electrical heating device including a user settable timing control mechanism, wherein the heating assembly includes a carafe bracket configures to stabilize the carafe assembly upon the heating assembly while also directing steam over portions of the carafe assembly, and wherein the carafe bracket is a hollow cylinder-shaped vertical structure having a bracket flange portion across a bottom surface, and wherein the bracket flange includes integrally-formed steam apertures and hemispherical protrusions.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0027] The advantages and features of the present invention will become better understood with reference to the following more detailed description and claims taken in conjunction with the accompanying drawings, in which like elements are identified with like symbols, and in which:

[0028] FIG. 1 is a perspective view of a carafe and brewing assembly portion of a coffee and tea brewing and heating system depicting a brewing state, according to one embodiment of the present invention;

[0029] FIG. 2 is a perspective view of the carafe and heating assembly of the coffee and tea brewing and heating system according to FIG. 1 depicting a heating state;

[0030] FIG. 3A is an elevational side view of the brewing assembly portion of the coffee and tea brewing and heating system according to a preferred embodiment of the present invention;

[0031] FIG. 3B is an exploded perspective view of the brewing assembly portion of FIG. 3A;

[0032] FIG. 3C is an elevational side view of a modified brewing assembly portion of FIG. 3A;

[0033] FIG. 4 an exploded perspective view of a serving lid of the coffee and tea brewing and heating system according to FIG. 1;

[0034] FIG. 5 A is an exploded view of the a coffee and tea brewing and heating system of FIG. 1;

[0035] FIGS. 5 B-D are elevation views of the coffee and tea brewing and heating system of FIG. 5A; and

[0036] FIGS. 6 A-B are elevation views of the carafe of the coffee and tea brewing and heating system of FIG. 1.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0037] The best mode for carrying out the invention is presented in terms of its preferred embodiment, herein depicted within FIGS. 1 through 6A-B. However, the invention is not limited to the described embodiment, and a person skilled in the art will appreciate that many other embodiments of the invention are possible without deviating from the basic concept of the invention and that any such work around will also fall under scope of this invention. It is envisioned that other styles and configurations of the present invention can be easily incorporated into the teachings of the present invention, and only one particular configuration shall be shown and described for purposes of clarity and disclosure and not by way of limitation of scope. The terms “a” and “an” herein do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced items.

[0038] The present invention describes a coffee brewing and heating system (herein described as the “system”) 10, which provides a system 10 for brewing coffee grounds in a carafe assembly 20, filtering out the coffee grounds, and conveniently maintaining brewed coffee 120 within the carafe assembly 20 at serving temperature.

[0039] Referring now to FIGS. 1 and 2, perspective views of the system 10 in a brewing state and a heating state, according to the preferred embodiment of the present invention, are disclosed. The system 10 includes a carafe assembly 20, a brewing assembly 50, a serving lid 80, and a heating assembly 100.

[0040] As seen in FIG. 1, the carafe assembly 20 includes a transparent cylindrical container 22. The container 22 provides an open-top vessel capable of containing multiple cups of brewed coffee 120. The transparent open top container may be made of suitable plastics or, more preferably a high-temperature glass material. Cost and temperature suitability are not the only consideration for the material of the container 22 as other factors may be considered, such as thermal insulation to minimize temperature loss of the coffee or tea. Additionally coffee and tea aficionados will often prefer glass over plastic for perceived taste (other materials such as ceramics are desirable brewing vessels to those will discriminating preferences, but these do not yield the transparency desired and are not preferred, but are certainly possible for forming the container 22). The container 22 includes a conventional pour spout 28. The carafe assembly 20 includes a handle 24, generally wooden or plastic, and having an ergonomic shape such as a “D”-shaped structure, or the like, being tightly retained upon the glass container 22 by a handle strap 26, being affixed to the handle 24 and extending around and encompassing the container 22, thereby providing a secure mechanism to transport the carafe assembly 20. The handle strap 26 is envisioned to be of a stylish design, such as formed out of polished or burnished metal or out of leather, so as to give the carafe assembly 20 a pleasing aesthetic appearance while providing a clear view in select locations of the brewed coffee 120 within the container 22.

[0041] The round top opening of the container 22 allows sealed insertion of the brewing assembly 50 which includes a brewing lid 52 with an extension member extending into the container 22. A rubber or high friction gasket around the extension member shown can improve the friction fit of the brewing assembly 50 and minimize undesirable slippage in use. The brewing assembly 50 includes a plastic or wooden paddle knob 58 coupled to the upper distal end of a stir rod 56. The brewing assembly includes a paddle 60 coupled to the stir rod 56 adjacent a mesh filter assembly 61. The brewing lid 52 provides for conveniently filling the carafe assembly 20 with coffee grounds or tea leaves and hot water from a suitable source, via an integral fill aperture 54 along a top surface, and a removably attached rubber or plastic snap fit fill plug 53. The paddle 60 and mesh filter assembly 61 are mounted at a bottom distal end portion of the stir rod 56 and act to support a quantity of coffee grounds or tea leaves, whereupon the grounds or tea leaves may be manually agitated by the paddle 60, as desired, to produce brewed coffee 120 (or brewed tea).

[0042] As seen in FIG. 2, the system 10 provides a device or heating assembly 100 to heat and position the carafe assembly 20 for serving of the brewed coffee 120 when desired. The carafe assembly 20 is illustrated here having a serving lid 80 and an electric heating assembly 100. Following brewing, the brewing assembly 50 is slowly lifted and removed from the carafe assembly 20. Removal of the brewing assembly 50 allows the grounds or tea leaves to be filtered via the mesh filter assembly 61 portion, enabling the filtered brewed coffee 120 (or brewed tea) to remain within the carafe assembly 20. A serving lid 80 is then placed upon the carafe assembly 20, and the carafe assembly 20 is placed within a carafe bracket 110 located upon the heating assembly 100. The heating assembly 100 provides a supply of steam heat to the carafe assembly 20 so as to retain the brewed coffee 120 at a temperature suitable for normal serving.

[0043] The system 10 is envisioned to be manufactured in different volumetric sizes based upon a user's preference, and as such should not be interpreted as a limiting factor of the invention.

[0044] Referring now to FIG. 3A-C, the details of the brewing assembly portion 50 of the system 10, according to the preferred embodiments of the present invention, are disclosed. The brewing assembly 50 provides a brewing lid 52 having an integral fill aperture 54 and a fill plug 53 for convenient hot water filling of the carafe assembly 20. The brewing assembly 50 also includes a downwardly extending stir rod 56 which is slidingly inserted through an aperture portion of the brewing lid 52, which may include a nylon or other suitable bushing, and retained therein by a paddle knob portion 58 affixed to a top distal end of the stir rod 56.

[0045] The stir rod 56 further includes features being affixed to a bottom end portion including a paddle 60 and a mesh filter assembly 61. The paddle 60 provides a propeller-like planar structure being permanently affixed at its intermediate portion to the stir rod 56 and extending perpendicularly outward. The paddle 60 is positioned parallel to, and superjacent to a top surface of mesh filter assembly 61.

[0046] The mesh filter assembly 61 provides a disc-shaped plastic structure including a plurality of included mesh filter sections 63. The mesh filter assembly 61 also includes a lip seal 62 all around a perimeter edge. The diameter of the lip seal 62 is such so as to form a water-tight seal against an inner surface of the container 22. Upon lifting and removing the brewing assembly 50, the lip seal 62 together with the mesh filter sections 63 act to filter and separate the coffee grounds from the brewed coffee 120, so as to remain upon a top surface portion of the mesh filter assembly 61. The mesh filter assembly 61 and the extension member of the brewing lid may be constructed to sealingly engage when the stir rod 56 is pulled up to advance the mesh filter assembly the entire way to removeably seal the grounds or tea leaves in the then adjacent lid 52 and mesh filter assembly 61. A tactile and audible click, such as via a projection on the stir rod 56 that engages with the bushing or similar feature, may be added to give the user feedback that the mesh filter media 61 is sufficiently advanced to complete the separation process so that the brewing assembly may be removed.

[0047] The paddle 60 provides a mechanism for a user to manually agitate the coffee grounds during brewing by rotating the paddle knob 58, thereby rotating the affixed paddle 60 and mesh filter assembly 61 portions. Minor agitation of the coffee grounds or tea leaves during suspension in the hot water is known to facilitate the brewing process to produce the brewed coffee 120 or tea. Hot water is certainly the most common brewing liquid by far but it is not the only medium for brewing teas and coffees, but it is sufficient for the description for the present invention.

[0048] Additional filtering of the brewed coffee 120 or tea is provided by optionally utilizing a disposable paper filter 64 which is held in position against a bottom surface of the mesh filter assembly 61 via a snap-on plastic retainer ring 66. The additional paper filter may only be needed or desirable with finer ground coffee and tea leaves. The ability to add additional filters 64 in an easy effective manner adds great flexibility to the operation of the present invention.

[0049] FIG. 3C illustrates a modified brewing assembly portion of FIG. 3A in which the modification is a more conical shaped mesh filter assembly 61′ than the more disc shaped mesh filter assembly of FIG. 3A. The increase in the angle of the mesh filter assembly shown in mesh filter assembly 61′ will increase the mesh surface area thus increasing the flow rate there through, and the conical shape can act as a container for the grounds or tea leaves and keep them off of the seal 62. There are minor hydraulic advantages to the shape of FIG. 3A, and both are shown as each are effective in the present invention.

[0050] Referring now to FIG. 4, the details of the serving lid 80 are shown. The serving lid 80 is generally a conventional lid sized specifically for the open top of the container 22 of the carafe assembly 20. The serving lid 80 may be conventionally formed out of plastic or metal 82 and includes a serving lid knob 82, a service lid extension 84 extending into the open top of the container 22 of the carafe assembly 20 and which may include a gasket to assist with forming a tight fit therewith. Additionally the serving lid 80 includes a service lid pour cutout 86 in the extension 84 configured to be aligned with the spout 28 for serving the coffee or tea. The lid 80 may also include an optional mesh screen 88 that is placed on the extension 84 spanning the pour cutout 86.

[0051] FIGS. 2 and 5A-D show the coffee heating assembly portion 100 of the system 10, according to a preferred embodiment of the present invention. The coffee heating assembly 100 provides a mechanism to hold and heat the carafe assembly 20 following the previously described brewing process. The coffee heating assembly 100 provides a flow of steam heat around a bottom portion of the carafe assembly 20 for the purpose of maintaining a constant temperature and to preserve a taste of the brewed coffee 120 for an extended period of time. The coffee heating assembly 100 is envisioned to be an electrical heating device including associated components such as, but not limited to: a heating element, an over-temperature thermostat, and a power cord 107. The coffee heating assembly 100 includes a stable cylinder-shaped table-top base 102, a top perimeter rim portion 104 which supports a central removable cup-shaped water reservoir 105, a timer knob 106, and a carafe bracket 110. Temperature control may also be easily added.

[0052] The carafe bracket 110 is a hollow cylinder-shaped vertical structure having a bracket flange portion 112 across a bottom surface. The carafe bracket 110 acts to stabilize the carafe assembly 20 upon the heating assembly 100 while also directing steam from the reservoir 105 over the base and side portions of the carafe assembly 20.

[0053] In an alternative design the cylinder-shaped vertical structure of the bracket 110 may include a cutout 122 which can increase visibility of the container 22 to show the user how much coffee or tea is remaining and to better accommodate other issues such as handle 24 allowing the carafe assembly 20 to be placed onto the heating assembly 100 in one of two orientations. This feature is sometimes referenced as an ambidextrous feature as allowing for easy right hand and left hand implementation.

[0054] The carafe bracket 110 is removably attached to a top edge portion of the cup-shaped reservoir 105 via a plurality of downwardly extending clips 115 which are integral to a bottom surface of the bracket flange 112. The bracket flange 112 also includes integrally-formed steam apertures 113 and hemispherical protrusions 117. The protrusions 117 create a slight gap between the bracket flange 112 and a bottom surface of the carafe assembly 20, thereby allowing the steam which is emitted from the reservoir 105 to flow upwardly through the steam apertures 113 and over the carafe assembly 20.

[0055] It is envisioned that other styles and configurations of the present invention can be easily incorporated into the teachings of the present invention, and only one particular configuration shall be shown and described for purposes of clarity and disclosure and not by way of limitation of scope.

[0056] Operation

[0057] The preferred embodiment of the present invention can be utilized by the common user in a simple and effortless manner with little or no training. After initial purchase or acquisition of the system 10, it would be configured and utilized as described herein and shown in the figures.

[0058] The method of configuring and utilizing the system 10 was described generally above in and is repeated in detail herein as it may be achieved by performing the following steps: procuring a model of the system 10 having a desired internal volume and external appearance; placing the carafe assembly 20 upon a countertop or similar stable surface; inserting the brewing assembly 50 approximately one-third (⅓) into the container 22 or coupling the lid 52 to the container 22 with the mesh filter assembly near the top; pouring an amount of coffee grounds (or tea leaves) into the container 22 via the open top or the opening 54 if the lid 52 is attached such that the coffee or tea onto the mesh filter assembly 61 using a suitable measuring cup or spoon; inserting the brewing assembly 50 all the way into the container 22 with the brewing lid 52 coupled to the container 22 and the stir rod 56 fully depressed; adding a desired volume of boiling water (or other desired brewing medium—such as milk for Chai) through the fill aperture 54 from a hot water source such as a tea kettle; inserting the fill plug 53 into the fill aperture 54; turning the paddle knob 58 to rotate the paddle 60 to agitate the coffee grounds, as desired; allowing sufficient time for the coffee or tea to brew; plugging in the heating assembly 100 using the power cord 107; selecting a time setting using the timer knob 106; slowly lifting the brewing assembly 50 upwardly; allowing the brewed coffee 120 to pass through the mesh filter assembly 61 and remain within the container 22; removing the brewing assembly 50 from the carafe assembly 20; setting the brewing assembly 50 aside for cleaning; inserting and securing the carafe bracket 110 into the reservoir 105 using the clips 115, if not previously installed; placing the carafe assembly 20 into the carafe bracket 110; maintaining a temperature of the brewed coffee 120 by allowing the steam generated by the heating assembly 100 to flowing through the steam apertures 113 and up over the carafe; and, benefiting from a convenient and timely method to prepare and serve multiple cups of hot fresh tasting brewed coffee 120 or tea, afforded a user of the present invention 10.

[0059] The foregoing descriptions of specific embodiments of the present invention have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the invention to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical application, to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated.