Ice dispensing apparatus and method

• US 4,930,685 A
• Filed: 02/26/1988
• Issued: 06/05/1990
• Est. Priority Date: 02/26/1988
• Status: Expired due to Term

• Current Assignee: Manitowoc Foodservice Companies Incorporated (The Manitowoc Company, Inc.)
• Original Assignee: Servend International, Inc. (The Manitowoc Company, Inc.)
• Inventors: Landers, Jerry L.
• Primary Examiner(s): Huppert, Michael S.
• Assistant Examiner(s): Noland, Kenneth
• Application Number:
  US07/160,753
• Time in Patent Office: 830 Days
• Field of Search: 222/240, 222/368, 222/369, 222/146.6, 222/242, 222/370, 222/274, 221/277, 221/263, 221/266, 62/381, 62/344, 62/266
• US Class Current: 222/370
• CPC Class Codes: F25C 5/24 for storing bins ice bins F25C5/182

Abstract

An ice dispensing bin has an inward and rearward sloped front wall and a downward and forward sloped semi-cylindrical bottom wall. The rear wall and side walls and an upper portion of the front wall are generally vertical. A paddle wheel is positioned in a recess in the sloping front wall. The paddle wheel has a circular plate lying along a central portion of the annular recess. A truncated conical plate converges axially about 10 degrees from the circular plate. Paddles extend radially from the conical plate. Turbine blade-like paddles curve circumferentially and then axially and stop short of the front wall to trap and move ice along the front wall of the recess as the paddle wheel is rotated. A shaft extends through the paddle wheel and rearwardly to a bearing in the rear wall. An angular arm on the shaft breaks ice bridges as the shaft rotates with the paddle wheel. A speed reducer mounted on the front of the sloping wall and a motor mounted on a lower portion of the speed reducer turn the paddle wheel and ice bridge breaker. A switch opens the gate and starts movement of the paddle wheel.

Claims

1. An ice dispensing paddle wheel comprising a shaft, circular means connected to the shaft for supporting peripheral means, peripheral means connected to a circumference of the circular means for supporting ice-moving means, and ice-moving means connected to the peripheral means and extending outward therefrom, the ice-moving means comprising ice-moving blades connected to the peripheral means and being positioned at angles relative to the shaft, wherein the blades extend in curved surfaces which curve generally rearwardly with respect to shaft rotation and then axially with respect to the shaft, whereby the paddles urge the ice to move forwardly in the direction of shaft rotation and in front of the blades and urge the ice to move axially forwardly with respect to the shaft as the shaft, circular means, peripheral means and ice-moving blades move, wherein the circular means comprises a circular plate and wherein the peripheral means comprises a truncated conical plate attached to and extending forward of a circumferential area of the circular plate, and wherein the blades are attached to the truncated conical plate and wherein the blades curve rearward in a direction of rotation of the circular plate and axially, wherein the circular plate fits against a circular portion of a front wall of an ice dispenser bin, wherein the conical plate surrounds a cylindrical wall portion of a recess in the front wall of the ice dispenser bin and wherein the blades move within the recess.

2. The apparatus of claim 1 further comprising a drain at the bottom of the recess in the front wall and an opening at the top of the recess in the front wall.

3. The apparatus of claim 2 wherein the front wall is sloped rearwardly and inwardly in the bin.

4. The apparatus of claim 3 wherein the front wall is sloped rearwardly and inwardly about 20 degrees with respect to vertical.

5. The apparatus of claim 3 further comprising a solenoid operated gate in front of the opening, the gate moving from an open position to a closed position in front of the opening.

6. The apparatus of claim 3 further comprising a recess in the outside of the front wall within the cylindrical recess in the inside of the front wall and further comprising a motor and gear drive mounted within the external recess and connected to the shaft.

7. The apparatus of claim 6 further comprising an ice bridge breaker angularly extending from the shaft within the bin.

8. The apparatus of claim 7 wherein the ice bridge breaker comprises an extension extending rearward from the paddle wheel shaft and drivingly connected thereto and a rear wall and a support for a distal end of the extension mounted on the rear wall and an ice bridge breaker arm angularly connected to the extension.

9. The apparatus of claim 3 further comprising an ice dispenser bin having generally vertical side walls connected to the front wall and having a curved bottom wall connected to the side walls and front walls, the bottom wall sloping downward and forwardly toward the front wall, and having a rear wall extending generally upwardly from the bottom wall and connected to the side walls and wherein the bottom wall is curved and generally tangentially joins the side walls.

10. The apparatus of claim 9 wherein the bottom wall slopes downwardly from the rear wall to the front wall.

11. Ice dispenser apparatus comprising a bin having a rear wall, side walls, a bottom wall and a front dispensing wall, wherein the front wall has a curved forward extending recess communicating with the bin and extending forward in the front wall and further comprising paddle means positioned in the recess and drive means connected to the paddle means for moving the paddle means in the recess, an opening at the top of the recess in a front portion thereof and means for selectively closing and opening, whereby the paddles move in the recess and move ice along the recess toward an opening in the front dispensing wall.

12. The apparatus of claim 11 wherein the recess is generally circular and wherein the driving means comprises a shaft extending through the front wall in the center of the circular recess and connecting means connecting the paddles to the shaft.

13. The apparatus of claim 11 wherein the recess is generally annular and wherein the driving means comprises a shaft extending through a center of the annular recess, a plate connected to the shaft overlying the front wall in an area within the annular recess and paddles extending into the recess from the plate.

14. The apparatus of claim 13 further comprising a truncated conical plate extending into the recess from a peripheral circumferential area of the circular plate and wherein the paddles are connected to the conical plate and the circular plate and extend over the conical plate in a direction sloping generally rearwardly with respect to a direction of rotation of the shaft and forwardly with respect to the bin.

15. The apparatus of claim 14 wherein leading edges of the paddles are curved slightly forwardly with respect to the bin, for avoiding shaving or crushing ice and for reducing resistance to rotation.

16. The apparatus of claim 14 wherein the paddles are curved and are cantilevered from the conical plate and wherein the paddles extend forwardly to positions spaced from the opening.

17. The apparatus of claim 11 wherein the bottom wall of the ice hopper is curved and slopes forwardly and downwardly at an angle of about 10 to 20 degrees to horizontal.

18. The apparatus of claim 17 wherein the front wall recess is cylindrically shaped and wherein the bottom wall curvature is substantially semi-circular and wherein the front wall slopes forwardly and upwardly from the bottom wall at an angle of about 10 to 20 degrees to vertical.

19. Ice dispenser apparatus comprising a bin having a rear wall, side walls, a bottom wall and a frong ice-contacting dispensing wall, wherein the bottom wall slopes downward and forward at about 10 to 20 degrees and wherein the front walls lopes rearward and downward at about 5 to 20 degrees from vertical, wherein the bottom wall is generally semi-circular around a similarly sloping imaginary axis, and further comprising a paddle wheel positioned adjacent the front wall and a shaft extending through the wall for supporting and driving the paddle wheel for lifting ice to a dispensing opening, and a speed reducer connected to the shaft and a drive motor connected to the speed reducer near a bottom of a front wall for driving the speed reducer and the shaft, wherein the speed reducer and drive motor are positioned rearward of a vertical plane from a top of a front wall of the dispenser, an opening in the front wall adjacent an upper portion of the paddle wheel and a solenoid-controlled gate in the opening, the gate being slideable between an open position and a closed position, a track surrounding the gate and a drain tube connected to a lower portion of the track for draining water from the track.

20. Ice dispensing apparatus comprising an ice storage bin having a rear wall and a front wall spaced from the rear wall, and first and second opposite side walls spaced from each other and connected to the front wall and rear wall, and a bottom wall connected to the side walls and connected to the front wall and rear walls for completing the ice storage bin, a circular recess in the front wall, plural ice dispenser paddles in the recess, a rotatable holder connected to the paddles, the rotatable holder being mounted on the front wall concentrically with the recess, an ice dispensing opening in an upper portion of the recess for permitting ice to flow through the opening and exit the recess, and a turner for turning the holder and moving the paddles in the recess, whereby the paddles move ice along the recess.

21. The apparatus of claim 20, wherein the holder comprises a circular plate mounted along a front wall concentrically with the recess.

22. The apparatus of claim 21, wherein the holder further comprises a circular portion connected to the plate and extending into the recess.

23. The apparatus of claim 22, wherein the paddles are curved.

24. The apparatus of claim 20, further comprising a drain at a bottom of the recess at a forward end of the lower wall.

25. The apparatus of claim 20, wherein the recess is arcuate over a major portion of a circle, and wherein the lower wall of the bin forms the lower surface of the recess.

26. The apparatus of claim 25, wherein the recess diverges from the side walls at points spaced upward along the front wall.

27. The apparatus of claim 20, wherein a shaft extends through the front wall concentrically with the recess and is secured to the holder inside of the front wall.

28. An ice dispensing apparatus comprising an ice storage bin having an outward and upward sloping inner wall, the inner wall having a fixed sloping surface, a paddle wheel mounted along the sloping wall and having a shaft disposed at an angle to a horizontal axis, a disk connected to the shaft means, a paddle support means connected to the disk for supporting ice-moving paddles, and ice-moving paddles connected to the paddle support and extending outward therefrom, the ice-moving paddles being configured for moving ice along the fixed sloping surface of the ice bin inner wall, thereby the paddles move ice along the fixed sloping surface of the inner wall, wherein the disk comprises a circular plate, wherein the paddle support comprises a forward extending plate attached to and extending forward of a circumferentially area of the circular plate and wherein the paddles are attached to the forward extending plate, and wherein the paddles curved rearward in a direction of rotation of the circular plate and forward in an axial direction, wherein the paddles terminate short of a front edge of the forward extending plate.

29. An ice dispensing apparatus comprising an ice storage bin having an outward and upward sloping inner wall, the inner wall having a fixed sloping surface, a paddle wheel mounted along the sloping wall and having a shaft disposed at an angle to a horizontal axis, a disk connected to the shaft means, a paddle support means connected to the disk for supporting ice-moving paddles, and ice-moving paddles connected to the paddle support and extending outward therefrom, the ice-moving paddles being configured for moving ice along the fixed sloping surface of the ice bin inner wall, whereby the paddles move ice along the fixed sloping surface of the inner wall, wherein the disk comprises a circular plate and wherein the paddle support comprises a forward extending plate attached to and extending forward of a circumferential area of the circular plate and wherein the paddles are attached to the forward extending plate, wherein a sloping wall has a cylindrical recess and the circular plate fits against a circular portion of a front wall of an ice dispenser bin, wherein the forward extending plate extends over a cylindrical wall portion of the recess in the sloping wall of the ice storage bin, and wherein the paddles move within the recess.

30. The apparatus of claim 29, further comprising a drain at the bottom of the recess in the front wall and an ice dispensing opening near a top of the recess in the front wall.

31. The apparatus of claim 30, wherein the front wall is sloped downwardly, rearwardly and inwardly in the bin.

32. The apparatus of claim 31, wherein the front wall is sloped rearwardly and inwardly about 20 degrees with respect to vertical.

33. The apparatus of claim 31, further comprising a solenoid operated gate in front of the opening, the gate moving from an open position to a closed position in front of the opening.

34. The apparatus of claim 31, further comprising an external recess in the outside of the sloping wall within the cylindrical recess in the inside of the sloping wall, and further comprising a motor and gear drive mounted within the external recess and connected to the shaft.

35. The apparatus of claim 34, further comprising an ice bridge breaker angularly extending from the shaft within the bin.

36. The apparatus of claim 35, wherein the ice bridge breaker comprises an extension extending rearward from the paddle wheel shaft and drivingly connected thereto, and an ice bridge breaker arm angularly connected to the extension.

37. The apparatus of claim 31, wherein the sloping wall is a front wall and the ice storage bin has generally vertical side walls connected to the front wall and having a curved bottom wall connected to the side walls and the front wall, the bottom wall sloping downward and forwardly toward the front wall, and the bin having a rear wall extending generally upwardly from a rear edge of the bottom wall and connected to rear edges of the side walls, and wherein the bottom wall is curved and generally tangentially joins the side walls.

38. The apparatus of claim 37, wherein the bottom wall slopes downwardly from the rear wall to the front wall.

39. The apparatus of claim 37, wherein the paddles have leading edges that curve away from the circular plate.

40. Ice dispenser apparatus comprising a bin having a rear wall, side walls, a bottom wall and a front dispensing wall, wherein a surface of the front wall facing inward in the bin has an arcuate forward extending recess communicating with the bin and extending forward into the front wall, and further comprising a paddle wheel having paddles positioned in the recess and a drive connected to the paddle wheel for moving the paddles in the recess, an ice dispensing opening in the recess near a top of the recess, whereby the paddles move ice along the recess toward the ice dispensing opening.

42. The apparatus of claim 40, wherein the recess is generally annular and wherein the drive comprises a shaft extending through a center of the annular recess, wherein the paddle wheel comprises a circular plate connected to the shaft and overlying the front wall in an area within the annular recess and wherein the paddles extend into the recess from the plate.

43. The apparatus of claim 42, wherein the paddle wheel further comprises a forward extending plate extending into the recess from a peripheral circumferential area of the circular plate, and wherein the paddles are connected to the forward extending plate and extend radially outward from the forward extending plate.

44. The apparatus of claim 40, wherein the bottom wall of the ice hopper is concave and slopes forwardly and downwardly at an angle of about 10 to 20 degrees to horizontal.

45. THe apparatus of claim 44, wherein the front wall recess is cylindrically shaped, and wherein the concave bottom wall has a curvature which is substantially semicircular, and wherein the front wall slopes forwardly and upwardly from a position spaced by the recess from the bottom wall at an angle of about 10 to 20 degrees to vertical.

41. An ice dispensing apparatus comprising an ice storage bin having an outward and upward sloping inner wall, the inner wall having a fixed sloping surface, a paddle wheel mounted along the sloping wall and having a shaft disposed at an angle to a horizontal axis, a disk connected to the shaft means, a paddle support connected to the disk for supporting ice-moving paddles, and ice-moving paddles connected to the paddle support and extending outward therefrom, the ice-moving paddles being configured for moving ice along the fixed sloping surface of the ice bin inner wall, whereby the paddles move ice along the fixed sloping surface of the inner wall.

46. Ice dispenser apparatus comprising a bin having a rear wall, side walls, a bottom wall and a front dispensing wall, an arcuate recess in the front wall wherein the bottom wall slopes downward and forward at about 10 to 20 degrees, and wherein the front wall slopes rearward and downward at about 5 to 20 degrees from vertical, further comprising a paddle wheel positioned adjacent the front wall and having paddles in the recess for moving ice along the recess, and a shaft extending through the wall for supporting and driving the paddle wheel for lifting ice to a dispensing opening.

47. An ice dispensing bin having an open top, and a cover for the top, a long generally vertical rear wall extending downward from the top, a sloping bottom wall extending downward and forward from a lower edge of the rear wall, a generally vertical upper front wall portion extending downward from the top, a sloping front wall portion extending downward and rearward from a lower edge of the vertical upper front wall portion toward the sloping bottom, a first and second oppositely spaced sidewalls connected to lateral edges of the rear wall, the bottom wall, the upper portion of the front wall and the sloping portion of the front wall, and a dispensing opening in an upper portion of the sloping portion of the front wall for dispensing ice out of the bin, and ice mover mounted in the bin adjacent the sloping portion of the front wall and extending between positions near a forward portion of the bottom sloping wall and the dispensing opening for moving ice along he sloping front wall to the dispensing opening, whereby substantially all of the ice within the bin is capable of being dispensed from the dispensing opening by the ice mover, further comprising a circular recess extending forward within the sloping portion of the front wall, and wherein the ice mover includes paddles mounted within the forward extending recess for moving ice along the recess, whereby substantially all of the ice in the bin is dispensed by the paddles moving along the recess, and whereby the ice is dispensed at a substantially consistent rate.