Coffee dispenser and brewer apparatus

• US 5,241,898 A
• Filed: 09/25/1992
• Issued: 09/07/1993
• Est. Priority Date: 09/25/1992
• Status: Expired due to Term

• Current Assignee: Grindmaster Corporation (AB Electrolux)
• Original Assignee: Grindmaster Corporation (AB Electrolux)
• Inventors: Newnan, Brian D.
• Primary Examiner(s): JENKINS, ROBERT
• Application Number:
  US07/951,674
• Time in Patent Office: 347 Days
• Field of Search: 99/286, 99/280, 99/281, 99/282, 99/283, 99/285, 99/287, 99/289 R, 99/290, 99/300, 99/299, 99/302 R, 99/304, 99/305, 426/433, 241/100, 241/222, 241/225
• US Class Current: 99/280
• CPC Class Codes: A47J 31/42 Beverage-making apparatus with incorporated grinding or roasting means for coffee coffee mills A47J42/00; coffee roasters in general A23N12/08

Abstract

A coffee dispensing and brewing apparatus in accordance with one embodiment of the present invention comprises components for dispensing a predetermined amount of coffee to a brew basket, the components including a hopper for holding a supply of coffee beans and an auger device communicating with the hopper for portioning coffee beans in a predetermined amount to a coffee grinder. The apparatus further includes a brew basket holding assembly for releasably holding the brew basket in a region adjacent a passageway to the grinder and a hot water making and delivery system for distributing a predetermined volume of hot water from a hot water holding tank to the region during a brewing cycle. The grinder motor has a right angle power transmission that couples the moter to the grinder with the motor being located below the grinder and adjacent a vertical side of the holding tank.

Claims

1. A coffee dispensing and brewing apparatus comprising

(a) coffee dispensing means for dispensing a predetermined amount of coffee to a brew basket, said coffee dispensing means including

(i) a hopper for holding a supply of coffee beans,

(ii) means communicating with said hopper for portioning coffee beans in a predetermined amount, and

(iii) a grinder for receiving and grinding said predetermined amount into ground coffee;

(b) a brew basket holding means for releasably holding said brew basket in a region adjacent a passageway to said grinder whereby said brew basket receives said predetermined amount of coffee in ground coffee form;

(c) hot water making and delivery means for distributing a predetermined volume of hot water to said region during a brewing cycle, said hot water means including a tank for holding said hot water before distribution thereof; and

(d) a grinder motor and right angle power transmission means for coupling said motor to said grinder, said motor being located below said grinder and adjacent a vertical side of said tank.

2. The apparatus of claim 1 in which said portioning means is an auger element coupled to an auger motor.

3. The apparatus of claim 2 including a valve means for closing said passageway during said brewing cycle thereby preventing water vapor generated from moving into said coffee dispensing means when hot water is being distributed to said brew basket.

4. The apparatus of claim 3 including slide valve control means, said valve means being a slide valve connected to a solenoid, said solenoid responsive to said control means and operative to close communication between said brew basket and said dispensing means before said brewing cycle commences.

5. The apparatus of claim 4 in which said slide valve is connected to a plunger of said solenoid and moves in the same plane of said solenoid plunger.

6. The apparatus of claim 1 in which said coffee dispensing means includes an upper section defining a plurality of hoppers each for holding a supply of coffee beans and a plurality of auger elements associated with said hoppers.

7. The apparatus of claim 6 in which said dispensing means has a lower section integral with said upper section, said lower section defining a plurality of chambers each housing an associated one of said auger elements and a plurality of funnel portions for guiding said predetermined amount of beans from said associated hopper to said associated auger element chamber.

8. The apparatus of claim 7 wherein said dispensing means further includes means for guiding said beans received from said auger elements directly to said grinder.

9. The apparatus of claim 8 in which said guiding means is a bean transition chamber feeding an enclosed spout chamber directly connected to said grinder.

10. The apparatus of claim 6 in which said upper section has side walls having a trapezoidal shape, each of said hoppers having an agitator wheel mounted for rotational movement therein and meshing with an associated one of said auger elements and being moved thereby when said associated auger is actuated, said agitator wheels rotating in a plane essentially co-planar to said upper section side windows and having a periphery extending closer to said upper section front wall than said upper section back wall and above the lower front edges of said upper section side windows near said front wall.

11. The apparatus of claim 6 in which said upper section is defined by front, back and side walls and a dividing wall dividing said upper section into two compartments each for housing coffee and a lower section housing said auger elements and defining a plurality of funnel portions to guide said coffee from said hoppers to said auger elements,

said dispensing means further including a lower section defining a plurality of funnel portions each associated with one of said hoppers, each of said funnel portions for guiding coffee from an associated one of said hoppers to an associated one of said auger elements.

12. The apparatus of claim 11 including an agitator wheel mounted in each of said hoppers for rotational movement and meshing with an associated one of said auger elements for rotational movement when said associated auger is actuated.

13. The apparatus of claim 12 in which said front wall and side walls include transparent material defining front and side windows, said agitator wheels mounted for rotational movement in a plane essentially co-planer to said side windows with the center of rotation being within said lower section.

14. The apparatus of claim 13 in which said lower section of each hopper has a sloping front wall merging with said upper section front wall, said sloping front wall positioned within about three to five times the width of an average coffee bean width.

15. The apparatus of claim 14 in which said side windows have a trapezoidal shape with the lower edges thereof sloping downward toward said upper section front wall such that the greatest depth of said side windows bounds a region of said hopper between the periphery of said agitator wheel and the upper section front wall.

16. The apparatus of claim 6 including at least one auger motor in an enclosed housing and transmission means operatively connecting said auger elements to said auger motor.

17. The apparatus of claim 16 in which said auger motor housing houses a plurality of auger motors, each associated with one of said auger elements.

18. The apparatus of claim 17 in which said transmission means comprises a plurality of drive shafts, each connected to an associated one of said auger motors through an opening in a wall of said auger housing and coupled to an associated one of said auger elements.

19. The apparatus of claim 6 further including control means for selecting one of said auger elements for actuation and for selecting one of a plurality of time periods of operation of said selected auger element thereby providing a quantity of coffee beans to said grinder proportional to said selected time period, said hot water making and distributing means responsive to said control means for selecting and delivering one of a plurality of predetermined amounts of hot water to said region.

20. The apparatus of claim 19 including an outwardly extending member positioned below said hoppers and auger elements, said member having a lower surface upon which said brew basket holding means is mounted and further defining openings into said region above said brewer basket for delivery therein of coffee and hot water.

21. The apparatus of claim 19 in which said control means activates said grinder for a predetermined time period and activates said hot water making and delivery means following said predetermined time period.

22. The apparatus of claim 1 in which said hot water making and distributing means includes means for heating water in said tank, said apparatus further including control means for deactivating said means for heating when said grinder is actuated and activating said means for heataing when said grinder is deactivated.

23. The apparatus of claim 1 wherein said dispensing means includes a plurality of hoppers, said apparatus further including

(i) hopper selection control means for selecting coffee beans from one of said hoppers,

(ii) coffee bean amount selection means for selecting from one of plurality of predetermined amounts, said portioning means responsive to said coffee bean amount selection means for delivering said selected amount to said grinder, and

said hot water making and delivering means responsive to said coffee bean selection means for selecting from one of plurality of predetermined volumes of hot water and delivering said preselected volume to said region.

24. The apparatus of claim 1 including

(i) control means for sequentially activating said dispensing means and the delivery of hot water by said hot water making and delivery means and

(ii) brew only switch means for maintaining said dispensing means in a de-active state when said switch means is open thereby only hot water is delivered to said basket.

25. A coffee dispensing and brewing apparatus comprising

(a) a hopper for holding coffee;

(b) a brew basket for receiving coffee and hot water;

(c) means communicating with said hopper for portioning coffee in predetermined amounts and delivering said predetermined amount to said brew basket;

(d) coffee amount selection means for selecting a predetermined amount of coffee from one of a plurality of predetermined amounts, said coffee portioning means responsive to said selection means portioning coffee in said selected predetermined amount and delivering said selected predetermined amount to said brew basket; and

(e) hot water means for making hot water and selecting- and delivering one of a predetermined volumes of hot water to said brew basket in response to the selection of said coffee selection means.

26. The apparatus of claim 25 including a plurality of hoppers, said portioning means responsive to a hopper selection means for portioning coffee from a selected one of said hoppers.

27. The apparatus of claim 26 wherein said hoppers hold coffee beans, said portioning means includes a plurality of auger elements each coupled to an auger motor, each auger element associated with one of said hoppers, a selected one of said augers in response to said hopper selection means rotating for a predetermined time period determined by said coffee amount selection means and moving said selected predetermined amount of coffee from said selected hopper to a grinder whereby said brew basket receives said selected predetermined amount of coffee in the form of ground coffee.

28. A coffee making apparatus comprising

(a) a hopper for holding coffee beans;

(b) a coffee grinder receiving coffee beans from said hopper;

(c) a coffee brewer means for brewing coffee from ground coffee received from said grinder, said brewer including a tank for holding water and a heating element for heating said water to a predetermined temperature, said grinder and said heating element connected to the same electrical power source; and

(d) means responsive to the actuation of said grinder for disconnecting said heating element from the electrical power source and reconnecting said heating element when said grinder is deenergized.

29. An apparatus for the holding of coffee beans for display and subsequent grinding comprising

(a) at least one hopper for the holding and displaying of coffee beans;

(b) a grinder for grinding coffee beans into ground coffee for subsequent brewing;

(c) a transporting means for receiving beans from said hopper and transporting the received beans to said grinder;

(d) an agitating wheel mounted for rotational movement within said hopper and being driven by said transporting means, said agitating wheel having projections for the movement of the coffee beans when said wheel is rotated, said hopper having an upper section defined by parallel front and back walls and parallel side walls with windows and a lower section having converging front, back and side walls defining a funnel portion communicating with said transporting means, and wherein a major portion of the circumference of said agitating wheel is positioned below the lower edges of said windows.

30. The apparatus of claim 29 in which the closest point of approach of the circumference of said agitating wheel is spaced no more than 3 to five times the distance of an average beans width from said front wall of said lower section.

31. The apparatus of claim 30 in which said side windows have a trapezoidal shape with the depth thereof along the front thereof being greater than the depth along the rear.

32. The apparatus of claim 31 including a pair of hoppers separated by a common transparent dividing wall, said coffee bean transporting means being a pair of auger elements, each auger element communicating with an associated one of said hoppers, and a pair of agitating wheels each mounted for rotational movement in an associated one of said hoppers and driven by an associated one of said auger elements.

33. A combination multi-hopper coffee bean grinding and brewing apparatus comprising

(a) a plurality of component modules, each module being releasable secured to neighboring module;

(b) a first module of said plurality of modules housing

(i) a plurality of hoppers each holding a supply of coffee beans,

(ii) a plurality of auger elements each associated with a respective hopper, a selected one of said auger elements moving a preselected quantity of said coffee beans from said associated hopper when said supply of coffee beans therein has been selected for use;

(c) a second module of said plurality of modules releasable secured to said first module, said second module housing

(i) at least one auger motor and

(ii) power transmission means couple for rotating a selected one of said augers when one of said hoppers associated with said auger element has been selected for use and moving a preselected quantity of beans; and

(d) a third module of said plurality of modules releasable secured to said second module, said third module housing

(i) a coffee bean grinder operative during a grinding cycle for receiving said preselected quantity of beans and a grinder motor for driving said grinder,

(ii) a brew basket holding means for releasable holding a brew basket adjacent a region receiving said preselected quantity of coffee in the form of coffee grounds during said grinding cycle, and

(iii) a hot water making and distributing means for distributing hot water during a brewing cycle to said region during a brewing cycle proportional to the selected quantity of beans.

34. The apparatus of claim 33 in which said first module has

an upper section defining said plurality of hoppers and

a lower section defining a plurality of chambers each housing an associated one of said auger element and a plurality of funnel portions each associated with one of said hoppers and guiding said selected quantity of beans from said associated hopper to said associated auger chambers.

35. The apparatus of claim 34 including a means for guiding said selected quantity of beans received from said selected auger element directly to said grinder.

36. The apparatus of claim 35 in which said guiding means is a bean transition chamber feeding an enclosed spout chamber directly connected to said grinder.

37. The apparatus of claim 34 including coffee bean transmitting means for transporting beans from said auger elements to said grinder, said grinder motor disposed at a right angle to said grinder and a right angle transmission drive operatively connecting said grinder to said grinder motor.

38. The apparatus of claim 33 in which said first module has

an upper section defined by front, back and side walls and at least one dividing wall dividing said upper section into said plurality of hoppers,

a lower section defining a plurality of funnel portions each associated with one of said hoppers, each of said funnel portions communicating an associated one of said hoppers to an associated one of said auger elements, and

a plurality of agitator wheels each mounted for rotational movement in an associated hopper one of said hoppers and meshing with an associated one of said auger elements for rotational movement when said associated auger is actuated.

39. A coffee dispensing and brewing apparatus comprising

(a) coffee dispensing means for dispensing a predetermined amount of coffee to a brew basket, said coffee dispensing means including

(i) a hopper for holding a supply of coffee beans,

(ii) auger means communicating with said hopper for portioning coffee beans in a predetermined amount, and

(iii) a grinder for receiving and grinding said predetermined amount into ground coffee;

(b) a brew basket holding means for releasably holding said brew basket in a region adjacent a passageway to said grinder whereby said brew basket receives said predetermined amount of coffee in ground coffee form;

(c) hot water making and delivery means for distributing a predetermined volume of hot water to said region during a brewing cycle; and

(d) slide valve control means, said valve means being a slide valve connected to a solenoid, said solenoid responsive to said control means and operative to close communication between said brew basket and said dispensing means before said brewing cycle commences.

40. The apparatus of claim 39 in which said slide valve is connected to a plunger of said solenoid and moves in the same plane of said solenoid plunger.

41. The apparatus of claim 40 in which said coffee dispensing means includes an upper section defining a plurality of hoppers each for holding a supply of coffee beans.

42. The apparatus of claim 41 in which said dispensing means has a lower section integral with said upper section, said lower section defining a plurality of chambers each housing an associated one of said auger elements and a plurality of funnel portions for guiding said predetermined amount of beans from said associated hopper to said associated auger element chamber.

43. A coffee dispensing and brewing apparatus comprising

(a) a hopper for holding coffee;

(b) a brew basket for receiving coffee and hot water;

(c) means communicating with said hopper for portioning coffee in predetermined amounts and delivering said predetermined amount to said brew basket;

(d) means for distributing a predetermined volume of hot water to said brew basket during a brewing cycle,

(e) control switch means for generating a signal when a cycle is initiated, said portioning means responsive to said signal for initiating portioning and delivering of said coffee and said hot water distributing means responsive to said signal for thereafter distributing hot water to said brew basket; and

(f) brew only means for selectively interrupting said signal to said portioning means thereby only hot water is distributed to said brew basket.

44. The apparatus of claim 43 in which there are a plurality of hoppers.

45. The apparatus of claim 44 in which said hoppers hold coffee beans, said portioning device further comprising a means for transporting coffee from a selected one of said hoppers and a grinder for receiving coffee beans from said transporting means, grinding said beans into ground coffee, and delivering said ground coffee to s id brew basket.

46. The apparatus of claim 45 in which said transporting means is a plurality of auger elements and motors for driving said auger elements, each of said auger elements associated with one of said hoppers.