Utensil wrapping apparatus and method

• US 7,322,172 B2
• Filed: 05/24/2006
• Issued: 01/29/2008
• Est. Priority Date: 05/24/2006
• Status: Expired due to Fees

• Current Assignee: Wrapmaster Incorporated
• Original Assignee: Wrapmaster Incorporated
• Inventors: Lindahl, Glen T., Hoffman, Gerald T.
• Primary Examiner(s): HUYNH, LOUIS K
• Application Number:
  US11/439,662
• Publication Number:
  US 20070271879A1
• Time in Patent Office: 615 Days
• Field of Search: 534/25, 534/30, 534/61, 534/65, 534/66, 531/16, 531/17, 531/18, 531/54, 531/55, 531/67, 532/03, 532/06, 532/09, 532/11, 532/16, 532/18, 532/28, 531/99, 535/82, 535/86, 535/87, 535/89, 531/372, 533/99
• US Class Current: 53/586
• CPC Class Codes: A47J 36/027 Cooking- or baking-vessels specially adapted for use in microwave ovens; Accessories therefor
• CPC Class Codes: A47J 37/01 Vessels uniquely adapted for baking for use in baker's ovens A21B
• CPC Class Codes: B65B 11/06 Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths

Abstract

An apparatus and method for wrapping a napkin around one or more utensils. The apparatus includes a wrapping area defining a trough dimensioned to receive one or more utensils. A utensil dispenser and napkin delivery mechanism may be provided to deliver the utensils and a napkin, respectively, to the trough. The apparatus may also include a wrapping mechanism that wraps the napkin around the utensils. In some cases, a tension mechanism may be included to selectively limit movement of the napkin during wrapping.

Claims

1. An apparatus for wrapping a napkin around one or more utensils, said apparatus comprising:

a wrapping area defining a trough dimensioned to receive one or more utensils;

a utensil dispenser configured to deliver one or more utensils to said trough;

a napkin delivery mechanism configured to deliver a napkin to said trough;

a wrapping mechanism configured to wrap the napkin around the one or more utensils to define a wrapped bundle;

a tension mechanism configured to selectively limit movement of the napkin during wrapping of the napkin around the one or more utensils;

wherein said tension mechanism is configured to frictionally engage a portion of the napkin proximate an edge of said trough prior to said wrapping mechanism starting to wrap the napkin around the one or more utensils; and

wherein said tension mechanism is configured to stop frictional engagement of the napkin at some time after said wrapping mechanism starts wrapping the napkin, but before said wrapping mechanism completes wrapping of the napkin.

2. The apparatus of claim 1, wherein said tension mechanism is movable between a first position and a second position, wherein said tension mechanism limits movement of the napkin in said first position and wherein said tension mechanism does not limit movement of the napkin in said second position.

3. The apparatus of claim 2, wherein said tension mechanism rotates between said first position and said second position.

4. The apparatus of claim 2, wherein said tension mechanism moves linearly between said first position and said second position.

5. The apparatus of claim 4, wherein said tension mechanism is a piston.

6. The apparatus of claim 2, wherein said tension mechanism is adjacent said wrapping area in said first position.

7. The apparatus of claim 2, wherein movement of said tension mechanism is synchronized with said wrapping mechanism such that said tension mechanism moves to said first position prior to said wrapping mechanism starting to wrap the napkin around the one or more utensils.

8. The apparatus of claim 2, wherein said tension mechanism traps a portion of the napkin between said tension mechanism and said wrapping area in said first position.

9. The apparatus of claim 2, wherein said tension mechanism includes an adhesive dispenser configured to deposit an adhesive on the napkin.

10. The apparatus of claim 9, wherein said tension mechanism is configured to deposit the adhesive on the napkin when said tension mechanism is in said first position.

11. The apparatus of claim 2, wherein said tension mechanism includes a tape dispenser configured to place a piece of tape on the napkin.

12. The apparatus of claim 11, wherein said tension mechanism is configured to place the piece of tape on the napkin when said tension mechanism is in said first position.

13. The apparatus of claim 1, wherein said wrapping mechanism includes a rod portion that extends into said trough.

14. The apparatus of claim 13, wherein said wrapping mechanism includes an actuator configured to rotate said rod portion substantially about an axis of said trough.

15. The apparatus of claim 14, wherein said rod portion is approximately longitudinally aligned with said trough.

16. The apparatus of claim 15, wherein said rod portion is approximately ⅛

inch in diameter.

17. The apparatus of claim 1, further comprising a discharge mechanism configured to remove the wrapped bundle from said wrapping mechanism when said discharge mechanism moves from a first position to a second position.

18. The apparatus of claim 17, wherein said discharge mechanism travels between said first position and said second position along an axis that is substantially parallel to a longitudinal axis of said wrapping mechanism.

19. The apparatus of claim 1, wherein said napkin delivery mechanism includes a transfer arm configured to rotate between a first position proximate a stack of napkins and a second position proximate said trough.

20. The apparatus of claim 19, wherein said transfer arm includes a vacuum lifting portion configured to lift a napkin from the stack of napkins.

21. The apparatus of claim 1, wherein said utensil dispenser includes a magazine with an interior dimensioned to receive a stack of utensils.

22. The apparatus of claim 21, wherein said magazine is selectively detachable from said utensil dispenser.

23. The apparatus of claim 21, wherein said magazine includes a liquid penetrable area that allows liquid communication with said interior along substantially the entire length of said magazine.

24. The apparatus of claim 21, further comprising a separation device configured to be carried by said magazine, wherein said separation device defines a plurality of spaces in said interior that are each dimensioned to receive a utensil.

25. The apparatus of claim 24, wherein said separation device is selectively removable from said magazine.

26. The apparatus of claim 25, wherein said separation device includes a first portion external to said interior of said magazine and a second portion that extends into said interior of said magazine.

27. An apparatus for wrapping a napkin around one or more utensils, said apparatus comprising:

a wrapping area defining a trough dimensioned to receive one or more utensils;

a utensil dispenser configured to deliver one or more utensils to said trough;

a napkin delivery mechanism configured to deliver a napkin to said trough;

a wrapping mechanism configured to wrap the napkin around the one or more utensils to define a wrapped bundle;

means for frictionally engaging a portion of the napkin to selectively limit movement of the napkin when said wrapping mechanism is wrapping the napkin around the one or more utensils;

wherein said frictionally engaging means is synchronized with said wrapping mechanism such that said frictionally engaging means engages the napkin prior to said wrapping mechanism starting to wrap the napkin; and

wherein said frictionally engaging means disengages the napkin at some time after said wrapping mechanism starts wrapping the napkin, but before said wrapping mechanism completes wrapping of the napkin.

28. The apparatus of claim 27, wherein said frictionally engaging means includes a tape dispenser configured to place a piece of tape on the napkin, wherein said napkin delivery mechanism includes a transfer arm that rotates between a first position proximate a stack of napkins and a second position proximate said trough and wherein said transfer arm includes a vacuum lifting portion configured to lift a napkin from the stack of napkins.

29. The apparatus of claim 28, wherein said utensil dispenser includes a magazine with an interior dimensioned to receive a stack of utensils, said apparatus further comprising a separation device configured to be carried by said magazine, wherein said separation device divides said interior into a plurality of spaces that are each dimensioned to receive a utensil and wherein said separation device is selectively removable from said magazine.

30. The apparatus of claim 29, wherein said magazine includes a liquid penetrable portion to allow liquid communication with said interior, wherein said liquid penetrable portion is configured to allow sufficient liquid communication with said interior to clean utensils carried therein.

31. An apparatus for wrapping a napkin around one or more utensils, said apparatus comprising:

a wrapping area defining a trough dimensioned to receive one or more utensils;

a utensil dispenser configured to deliver one or more utensils to said trough;

a transfer arm configured to deliver a napkin to said trough, wherein said transfer arm rotates between a first position proximate a stack of napkins and a second position proximate said trough;

a wrapping mechanism configured to wrap the napkin around the one or more utensils;

a tension mechanism configured to selectively limit movement of the napkin during wrapping of the napkin around the one or more utensils;

wherein said tension mechanism is movable between a first position that limits movement of the napkin and a second position that does not limit movement of the napkin;

wherein movement of said tension mechanism is synchronized with said wrapping mechanism such that said tension mechanism moves to said first position prior to said wrapping mechanism starting to wrap the napkin around the one or more utensils; and

wherein said tension mechanism moves to said second position at some time after said wrapping mechanism starts wrapping the napkin, but before said wrapping mechanism completes wrapping of the napkin.

32. The apparatus of claim 31, wherein said transfer arm includes a vacuum lifting portion configured to lift a napkin from the stack of napkins.

33. The apparatus of claim 32, wherein said transfer arm rotates about an approximately perpendicular axis to a longitudinal axis of said trough.

34. The apparatus of claim 32, wherein said transfer arm rotates about an approximately vertical axis.

35. The apparatus of claim 32, wherein said transfer arm has a limited rotational movement of less than approximately 180 degrees.

36. An apparatus for wrapping a napkin around one or more utensils, said apparatus comprising:

a wrapping area defining a trough dimensioned to receive one or more utensils;

a utensil dispenser configured to deliver one or more utensils to said trough;

a napkin delivery mechanism configured to deliver a napkin to said trough;

a wrapping mechanism configured to wrap the napkin around the one or more utensils to define a wrapped bundle;

a discharge mechanism configured to remove the wrapped bundle from said wrapping mechanism when said discharge mechanism moves from a first position to a second position;

a tension mechanism configured to selectively limit movement of the napkin during wrapping of the napkin around the one or more utensils;

wherein said tension mechanism is movable between a first position that limits movement of the napkin and a second position that does not limit movement of the napkin;

wherein movement of said tension mechanism is synchronized with said wrapping mechanism such that said tension mechanism moves to said first position prior to said wrapping mechanism starting to wrap the napkin around the one or more utensils; and

wherein said tension mechanism moves to said second position at some time after said wrapping mechanism starts wrapping the napkin, but before said wrapping mechanism completes wrapping of the napkin.

37. The apparatus of claim 36, wherein said discharge mechanism travels between said first position and said second position along an axis that is substantially parallel to a longitudinal axis of said wrapping mechanism.

38. The apparatus of claim 37, wherein said discharge mechanism moves linearly between said first position and said second position.

39. An apparatus for wrapping a napkin around one or more utensils, said apparatus comprising:

a wrapping area defining a trough dimensioned to receive one or more utensils;

a utensil dispenser configured to deliver one or more utensils to said trough;

a napkin delivery mechanism configured to deliver a napkin to said trough;

a wrapping mechanism configured to wrap the napkin around the one or more utensils to define a wrapped bundle;

a tension mechanism configured to selectively limit movement of the napkin during wrapping of the napkin around the one or more utensils;

wherein said tension mechanism is movable between a first position that limits movement of the napkin and a second position that does not limit movement of the napkin;

wherein movement of said tension mechanism is synchronized with said wrapping mechanism such that said tension mechanism moves to said first position prior to said wrapping mechanism starting to wrap the napkin around the one or more utensils; and

wherein said tension mechanism moves to said second position at some time after said wrapping mechanism starts wrapping the napkin, but before said wrapping mechanism completes wrapping of the napkin.

40. The apparatus of claim 39, wherein said tension mechanism traps a portion of the napkin between said tension mechanism and said wrapping area in said first position.

41. The apparatus of claim 39, wherein said tension mechanism includes an adhesive dispenser configured to deposit an adhesive on the napkin.

42. The apparatus of claim 41, wherein said tension mechanism is configured to deposit the adhesive on the napkin when said tension mechanism is in said first position.

43. An apparatus for wrapping a napkin around one or more utensils, said apparatus comprising:

a wrapping area defining a trough dimensioned to receive one or more utensils;

a utensil dispenser configured to deliver one or more utensils to said trough;

a napkin delivery mechanism configured to deliver a napkin to said trough;

a wrapping mechanism configured to wrap the napkin around the one or more utensils to define a wrapped bundle;

a tension mechanism configured to selectively limit movement of the napkin during wrapping of the napkin around the one or more utensils;

wherein said tension mechanism is movable between a first position that limits movement of the napkin and a second position that does not limit movement of the napkin;

wherein movement of said tension mechanism is synchronized with said wrapping mechanism such that said tension mechanism moves to said first position prior to said wrapping mechanism starting to wrap the napkin around the one or more utensils; and

wherein said tension mechanism includes at least one of;

an adhesive depositing mechanism configured to deposit an adhesive on the napkin, and

a tape dispenser configured to place a piece of tape on the napkin.

44. The apparatus of claim 43, wherein said adhesive depositing mechanism is configured to deposit the adhesive on the napkin when said tension mechanism is in said first position.

45. The apparatus of claim 43, wherein said tape dispenser is configured to place the piece of tape on the napkin when said tension mechanism is in said first position.

46. The apparatus of claim 43, wherein said wrapping mechanism includes a rod portion that extends into said trough.

47. The apparatus of claim 46, wherein said wrapping mechanism includes an actuator configured to rotate said rod portion substantially about an axis of said trough.

48. The apparatus of claim 47, wherein said rod portion is approximately longitudinally aligned with said trough.

49. The apparatus of claim 43, further comprising a discharge mechanism configured to remove the wrapped bundle from said wrapping mechanism when said discharge mechanism moves from a first position to a second position.

50. The apparatus of claim 49, wherein said discharge mechanism travels between said first position and said second position along an axis that is substantially parallel to a longitudinal axis of said rod portion.