Dispenser adapted to isolate the dispensed objects by compression between two moveable structures

• US 5,110,008 A
• Filed: 09/29/1989
• Issued: 05/05/1992
• Est. Priority Date: 09/29/1989
• Status: Expired due to Fees

• Current Assignee: Thomas S. Moulding Jr
• Original Assignee: Thomas S. Moulding Jr
• Inventors: Ellis, Donald G., Moulding, Thomas S. Jr.
• Primary Examiner(s): Olszewski, Robert P.
• Assistant Examiner(s): NOLAND, KENNETH W
• Application Number:
  US07/414,454
• Time in Patent Office: 949 Days
• Field of Search: 221/7, 221/13, 221/14, 221/15, 221/64, 221/259, 221/260, 221/268, 221/277, 221/263
• US Class Current: 221/259
• CPC Class Codes: A61J 1/03 for pills or tablets containers for pills or tablets with special dispensing means therefor B65D83/04
• CPC Class Codes: A61J 2205/70 Audible labels, e.g. for pre-recorded info or messages
• CPC Class Codes: A61J 7/0076 Medicament distribution means with pill counting devices A61J7/02; with time indication A61J7/04; containers or packages with special means for dispensing contents B65D83/00
• CPC Class Codes: A61J 7/04 Arrangements for time indication or reminder for taking medicine, e.g. programmed dispensers
• CPC Class Codes: B65G 2207/14 Combination of conveyors
• CPC Class Codes: B65G 47/1407 the articles being fed from a container, e.g. a bowl
• CPC Class Codes: B65G 65/42 using belt or chain conveyors
• CPC Class Codes: G07F 17/0092 for assembling and dispensing of pharmaceutical articles medical dispensers for private use, A61J7/00

Abstract

A medication dispenser for dispensing pills, tablets, capsules, or the like, one at a time from a receptacle in which the medication is arranged loosely to allow for easy filling. In one embodiment, the medication units are passed through a restricted funnel opening, one at a time, and then captured between two cooperating, movable, compressible structures such as wheels, belts, or the like, which move the units to a detector that counts the units as they are removed from the dispenser. In another embodiment, the medication is first captured and then moved through a restricted opening. The dispenser may also include a computer for controlling and/or recording the time of dispensing and the quantity of medication dispensed. Additionally, the dispenser may include two sequentially placed sets of cooperating, movable, structures at different horizontal levels for achieving greater separation of medication units.

Claims

1. A dispenser for dispensing substantially non-compressible solid objects one at a time comprising:

a receptacle having a substantially hollow interior for storing a plurality of objects to be dispensed, said receptacle having an opening through a first wall thereof;

a passageway extending from said opening to the exterior of said dispenser;

a pair of cooperating structures disposed in said passageway, at least one of said cooperating structures moveable relative to the other cooperating structure whereby movement of said moveable structure carries said objects through said passageway and between said structures substantially one at a time;

said at least one movable structure at least partially formed from a compressible material, said compressible material having dimensions sufficiently larger than dimensions of one of said objects such that a discrete indentation is formed in said compressible material by said object, said indentation possessing a surface disposed behind said object relative to the direction of movement of said object through said passageway thereby facilitating movement of said object through said passageway;

moving means for moving said movable structure; and

detecting means for detecting the passage of each said object past a predefined point in said passageway.

2. The dispenser of claim 1 wherein said objects are uniform in size.

3. The dispenser of claim 1 further comprising counting means responsive to said detecting means for counting the number of objects detected by said detecting means.

4. The dispenser of claim 1 further comprising means for selectively stopping the movement of said movable structure such that said objects cannot be carried through said passageway.

5. The dispenser of claim 3 further comprising controlling mean for activating said stopping means when said counting means indicates that a predetermined number of objects has been counted.

6. The dispenser of claim 1 further comprising means for recording the time when said detecting means detects the passage of each said object.

7. The dispenser of claim 3 further comprising means for recording the quantity of objects counted by said counting means.

8. The dispenser of claim 1 further comprising sealing means for substantially preventing the passage of moisture into said dispenser when said objects are not being dispensed.

9. The dispenser of claim 1 wherein said compressible movable structure moves substantially in a forward direction and a reverse direction and further comprising means for reversing the direction of movement of said movable structure whereby any object partially lodged in said opening may be dislodged.

10. The dispenser of claim 1 wherein said detecting means comprises:

a light source for producing a beam of light located on one side of said passageway and oriented to project said light beam across said passageway; and

means for detecting said light beam located on a side of said passageway opposite said light source and oriented to detect said light beam being projected from said light source whereby any object passing through said passageway will interrupt said light beam.

11. The dispenser of claim 1 wherein said compressible movable structure comprises:

a substantially non-compressible base; and

a compressible covering overlying said base.

12. The dispenser of claim 1 wherein said cooperating structures are each moveable relative to the other cooperating structure and wherein each said structure is at least partially fashioned of compressible material and wherein said compressible material is compressibly indented by at least one of said non-compressible objects when said object is carried between said structures, whereby said indentation assists in moving said non-compressible object.

13. The dispenser of claim 12 wherein each of said pair of movable structures comprises a pair of cooperating, opposing, rotatable wheels, a peripheral surface of one wheel substantially tangentially engaging the peripheral surface of the other wheel, said wheels adapted to capture an object substantially in the region of tangential engagement, whereby rotation of said wheels carries said captured object through said passageway.

14. The dispenser of claim 12 wherein each of said pair of movable structures comprises partial segments of a pair of cooperating, opposing, rotatable wheels, a peripheral surface of one wheel substantially tangentially engaging the peripheral surface of the other wheel, said wheels adapted to capture an object substantially in the region of tangential engagement, whereby rotation of said wheels carries said captured object through said passageway.

15. The dispenser of claim 12 wherein each of said pair of movable structures comprises a pair of cooperating, translating, endless belts adapted to capture an object between said belts, whereby translation of said belts carries said objects through said passageway.

16. The dispenser of claim 2 wherein said movable structure comprises a rotatable wheel and wherein said other cooperating structure possesses a substantially non-compressible surface possessing a low coefficient of friction, said wheel positioned so that a peripheral surface of said wheel substantially tangentially engages said non-compressible surface, said wheel and said non-compressible surface adapted to capture an object substantially in the region of tangential engagement, whereby rotation of said wheel carries said captured object through said passageway.

17. The dispenser of claim 2 wherein said movable structure comprises a partial segment of a wheel and wherein other cooperating structure possesses a substantially non-compressible surface possessing a low coefficient of friction said wheel segment positioned so that a peripheral surface of said wheel segment substantially tangentially engages said non-compressible surface, said segment of said wheel and said non-compressible surface adapted to capture an object substantially in the region of tangential engagement, whereby rotation of said wheel segment carries said captured object through said passageway.

18. The dispenser of claim 2 wherein said movable structure comprises a translating endless belt and wherein said other cooperating structure possesses a substantially non-compressible surface possessing a low coefficient of friction, said belt in contact with said non-compressible surface, said belt and said non-compressible surface adapted to capture an object there between, whereby translation of said belt carries said captured object through said passageway.

19. The dispenser of claim 15 wherein each of said belts comprises foam rubber.

20. The dispenser of claim 18 wherein said belt comprises foam rubber.

21. The dispenser of claim 11 wherein said covering comprises bristles.

22. The dispenser of claim 21 wherein said bristles comprise substantially flexible material.

23. The dispenser of claim 22 wherein said bristles comprise rubber.

24. The dispenser of claim 1 further comprising means for guiding said objects from said receptacle to said passageway.

25. The dispenser of claim 24 wherein said guiding means substantially prevents more than one of said objects from passing from said receptacle and into said passageway simultaneously.

26. The dispenser of claim 1 wherein each of said cooperating structures extends at least partially into said receptacle.

27. The dispenser of claim 26 wherein said opening, said movable structure, and said other cooperating structure form a restricted space that substantially prevents more than one of said objects from passing through said restricted space simultaneously.

28. The dispenser of claim 1 wherein said opening is located horizontally above the upper level of the objects in said receptacle.

29. The dispenser of claim 27 wherein said opening includes an anti-jamming device possessing at least one surface movable in a direction different from the movement of objects by said movable structure whereby movement of said surface causes objects not completely captured between said movable structure and said other cooperating structure to move back into said receptacle.

30. A dispenser according to claim 1 wherein said receptacle stores said objects in a loose and non-ordered state.

31. A dispenser according to claim 1 wherein said objects comprise medication.

32. A dispenser for dispensing solid objects one at time comprising:

receptacle for storing a plurality of objects to be dispensed;

a passageway extending from said receptacle to an exterior of said dispenser;

a pair of relatively movable cooperating structures dimensioned to pass said objects therebetween disposed in said passageway for moving said objects through said passageway substantially one at a time;

at least one of said cooperating structures at least partially formed from compressible material sufficiently large compared with the size of one of said objects being dispensed such that a discrete depression is formed by said object in said compressible material, said indentation possessing a surface disposed behind said object relative to the direction of movement of said object through said passageway thereby facilitating movement of said object through said passageway; and

detecting means for detecting passage of each of said objects past a predefined point in said passageway.

33. The dispenser of claim 32, wherein said means disposed in said passageway for moving said objects comprises a pair of relatively movable cooperating structures.

34. The dispenser of claim 33, wherein said cooperating structures are dimensioned to pass said objects therebetween.

35. The dispenser of claim 34, wherein said cooperating structures are dimensioned for frictional engagement with said objects.

36. The dispenser of claim 32, wherein said objects are uniform in size.

37. The dispenser of claim 36, wherein the other cooperating structure is non-compressible and stationary and includes a surface having a low coefficient of friction in contact with said movable cooperating structure, in which said pair of cooperating structures are positioned to capture an object in the area of contact engagement, whereby movement of said movable cooperating structure carries said captured object through said passageway.

38. The dispenser of claim 37, wherein said movable structure comprises a rotatable wheel positioned so that a peripheral surface of said wheel substantially tangentially engages said non-compressible surface, said wheel and said non-compressible surface adapted to capture an object substantially in the region of tangential engagement, whereby rotation of said wheel carries said captured object through said passageway.

39. The dispenser of claim 37, wherein said movable structure comprises a partial segment of a rotatable wheel positioned so that a peripheral surface of said partial segment substantially tangentially engages said non-compressible surface, said partial segment and said non-compressible surface adapted to capture an object substantially in the region of tangential engagement, whereby rotation of said partial segment carries said captured object through said passageway.

40. The dispenser of claim 37, wherein said movable structure comprises a translating endless belt in contact with said non-compressible surface, said belt and said non-compressible surface adapted to capture an object therebetween, whereby translation of said belt carries said captured object through said passageway.

41. The dispenser of claim 32, wherein said compressible material comprises foam rubber.

42. The dispenser of claim 36, wherein said at least one of said cooperating structures comprises:

a substantially non-compressible base; and

a compressible cover overlying said base.

43. The dispenser of claim 32, further comprising means for recording the time when said detecting means detects the passage of each said object.

44. The dispenser of claim 32, further comprising counting means responsive to said detecting means for counting the number of objects detected by said detecting means.

45. The dispenser of claim 44, further comprising means for recording the quantity of objects counted by said counting means.

46. The dispenser of claim 32, wherein said detecting means comprises:

a light source for producing a beam of light located on one side of said passageway and oriented to project said light beam across said passageway; and

means for detecting said light beam located on a side of said passageway opposite said light source and oriented to detect said light beam being projected from said light source, whereby any object passing through said passageway will interrupt said light beam.

47. The dispenser of claim 32, further comprising means for guiding said objects from said receptacle to said passageway.

48. The dispenser of claim 47, wherein said guiding means is configured for substantially preventing more than one of said objects from passing from said receptacle and into said passageway simultaneously.

49. The dispenser of claim 32, wherein said receptacle stores said objects in a loose and non-ordered state.

50. The dispenser of claim 32, wherein said objects comprise medication.

51. The dispenser of claim 32, wherein said means disposed in said passageway for moving said objects comprises:

a pair of relatively movable cooperating structures;

means for moving at least one of said cooperating structures; and

stopping means for selectively stopping the movement of said at least one cooperating structure to prevent said objects from being carried through said passageway.

52. The dispenser of claim 51, further comprising:

counting means responsive to said detecting means for counting the number of objects detected by said detecting means; and

control means for activating said stopping means when said counting means indicates that a predetermined number of objects has been counted.

53. The dispenser of claim 32, further comprising sealing means for substantially preventing the passage of moisture into said dispenser when said objects are not being dispensed.

54. The dispenser of claim 32, wherein said means disposed in said passageway for moving said objects comprises:

a pair of relatively movable cooperating structures;

means for moving at least one of said cooperating structures in a forward direction and in a reverse direction, whereby any object partially lodged in said passageway may be dislodged.

55. The dispenser of claim 32, wherein said means disposed in said passageway for moving said objects comprises cooperating, opposing, rotatable partial segments of a pair of wheels, a peripheral surface of one segment substantially tangentially engaging the peripheral surface of the other segment, said segments adapted to capture an object substantially in the region of tangential engagement, whereby rotation of said segments carries said captured object through said passageway.

56. The dispenser of claim 55, wherein each of said segments are at least partially formed from a compressible material and are dimensioned to be compressibly indented by at least one of said objects when said object is passed therebetween, whereby said indentations assist in moving said object.

57. The dispenser of claim 56, wherein said compressible material comprises foam rubber.

58. The dispenser of claim 56, wherein said compressible material comprises bristles.

59. The dispenser of claim 32, further comprising a funnel disposed for guiding objects from said receptacle into said passageway.

60. The dispenser of claim 32, further comprising a one-way gate disposed adjacent an outlet end of said passageway configured to permit movement of said objects out of said dispenser.

61. The dispenser of claim 57, wherein said one-way gate is formed by two cooperating thin flexible plastic leaves configured to separate under the weight of one of said objects.

62. The dispenser of claim 32, wherein said means disposed in said passageway for moving said objects comprises a pair of cooperating, opposing rotatable wheels, a peripheral surface of one wheel substantially tangentially engaging the peripheral surface of the other wheel, said wheels adapted to capture an object substantially in the region of tangential engagement, whereby rotation of said wheels carries said captured object through said passageway.

63. The dispenser of claim 62, wherein at least one of said wheels is at least partially formed from a compressible material and is dimensioned to be compressibly indented by at least one of said objects when said object is passed therebetween, whereby said indentation assists in moving said object.

64. The dispenser of claim 63, wherein said compressible material comprises foam rubber.

65. The dispenser of claim 63, wherein said compressible material comprises bristles.

66. The dispenser of claim 32, wherein said means disposed in said passageway for moving said objects comprises a pair of cooperating, translating endless belts, whereby translation of said belts carries said objects through said passageway.

67. The dispenser of claim 66, wherein at least one of said belts is at least partially formed from a compressible material and is dimensioned to be compressibly indented by at least one of said objects when said object is passed therebetween, whereby said indentation assists in moving said object.

68. The dispenser of claim 67, wherein said compressible material comprises foam rubber.

69. The dispenser of claim 67, wherein said compressible material comprises bristles.

70. The dispenser of claim 32, further comprising an anti-jamming device possessing at least one surface movable in a direction different from the movement of objects by said means disposed in said passageway.

71. The dispenser of claim 32, wherein said means disposed in said passageway for moving said objects comprises a first pair of cooperating structures, at least one of said first cooperating structures moveable relative to the other first cooperating structure, whereby movement of said moveable first cooperating structure carries said objects through a first portion of said passageway;

a second pair of cooperating structures disposed in said passageway, at least one of said second cooperating structures moveable relative to the other second cooperating structure, whereby movement of said moveable second cooperating structure carries objects through a second portion of said passageway after said objects have been carried through said passageway by said moveable first cooperating structure;

first moving means for moving said first cooperating structure; and

second moving means for moving said second cooperating structure.

72. The dispenser of claim 71, in which at least one of said movable structures in each pair of cooperating structures is at least partially fashioned of compressible material and wherein said compressible material is compressibly indented by at least one of said objects when said object is carried between said cooperating structures, whereby said indentation assists in moving said object.

73. The dispenser of claim 72, wherein each of said cooperating structures is movable relative to and in contact with the other cooperating structure in each pair of cooperating structures, whereby movement of either structure in each pair of cooperating structures causes movement of the other cooperating structure.

74. The dispenser of claim 73, wherein each cooperating structure is at least partially fashioned of compressible material.

75. The dispenser of claim 72, wherein the other cooperating structure in each pair of cooperating structures is non-compressible and stationary and includes a surface having a low coefficient of friction in contact with said movable cooperating structure, in which said cooperating structure pairs are each positioned to capture an object in the area of contact engagement whereby movement of said movable cooperating structure in each pair of cooperating structures carries said captured object through said passageway.

76. The dispenser of claim 71, further comprising counting means responsive to said detecting means for counting the number of objects detected by said detecting means.

77. The dispenser of claim 76, further comprising means for recording the quantity of objects counted by said counting means.

78. The dispenser of claim 71, further comprising means for selectively stopping the movement of each of said movable structures such that said objects cannot be carried through said passageway.

79. The dispenser of claim 72, wherein said compressible movable structures each comprise:

a substantially non-compressible base; and

a compressible covering overlying said base.

80. The dispenser of claim 73, wherein each of said pair of cooperating structures comprises a pair of cooperating, opposing, rotatable wheels, a peripheral surface of one wheel substantially tangentially engaging the peripheral surface of the other wheel, said wheels adapted to capture an object substantially in the region of tangential engagement, whereby rotation of said wheels carries said captured object through said passageway.

81. The dispenser of claim 73, wherein each of said pair of cooperating structures comprises partial segments of a pair of cooperating, opposing rotatable wheels, a peripheral surface of one wheel substantially tangentially engaging the peripheral surface of the other wheel, said wheels adapted to capture an object substantially in the region of tangential engagement, whereby rotation of said wheels carries said captured object through said passageway.

82. The dispenser of claim 73, wherein each of said pair of cooperating structures comprises a pair of cooperating, translating, endless belts adapted to capture an object between said belts, whereby translation of said belts carries said objects through said passageway.

83. The dispenser of claim 75, wherein each of said movable structures comprises a rotatable wheel positioned so that a peripheral surface of sad wheel substantially tangentially engages said non-compressible surface, said wheel and said non-compressible surface adapted to capture an object substantially in the region of tangential engagement, whereby rotation of said wheel carries said captured object through said passageway.

84. The dispenser of claim 75, wherein each of said movable structures comprises a partial segment of a wheel positioned so that a peripheral surface of said wheel segment substantially tangentially engages said non-compressible surface, said segment of said wheel and said non-compressible surface adapted to capture an object substantially in the region of tangential engagement, whereby rotation of said wheel segment carries said captured object through said passageway.

85. The dispenser of claim 75, wherein each of said movable structures comprises a translating endless belt in contact with said non-compressible surface, said belt and said non-compressible surface adapted to capture an object therebetween, whereby translation of said belt carries said captured object through said passageway.

86. A dispenser for dispensing solid objects one at a time, comprising:

a receptacle for storing a plurality of objects to be dispensed;

a passageway extending from said receptacle to an exterior of said dispenser;

a pair of relatively, movable cooperating structures disposed in said passageway, said cooperating structures having contacting surfaces;

means for moving at least one of said cooperating structures; and

said contacting surface of at least one of said cooperating structures at least partially fashioned from a compressible material and dimensioned relative to one of said objects to be dispensed such that said object forms a discrete depression in said compressible material as said object is passed between said cooperating structures, said discrete depression possessing at least one surface located behind said object relative to the motion of said object through said passageway, whereby said surface propels said object through said passageway.

87. The dispenser of claim 86, further comprising stopping means for selectively stopping the movement of said at least one cooperating structure to prevent said objects from being carried through said passageway.

88. The dispenser of claim 86, further comprising guiding means for substantially preventing more than one of said objects from passing from said receptacle and into said passageway simultaneously.

89. The dispenser of claim 86, wherein said cooperating structures comprise opposing, rotatable partial segments of a pair of wheels, a peripheral surface of one segment substantially tangentially engaging the peripheral surface of the other segment, said segments adapted to capture an object substantially in the region of tangential engagement, whereby rotation of said segments carries said capture object through said passageway.

90. The dispenser of claim 86, wherein said cooperating structures comprise a pair of opposing rotatable wheels, a peripheral surface of one wheel substantially tangentially engaging the peripheral surface of the other wheel, said wheels adapted to capture an object substantially in the region of tangential engagement, whereby rotation of said wheels carries said captured object through said passageway.

91. The dispenser of claim 86, where said cooperating structures comprise a pair of translating endless belts, whereby translation of said belts carries said objects through said passageway.

92. The dispenser of claim 86, further comprising detecting means for detecting passage of each of said objects past a predefined point in said passageway.

93. The dispenser of claim 86, wherein said detecting means comprises:

a light source for producing a beam of light located on one side of said passageway and oriented to project said light beam across said passageway; and

means for detecting said light beam located on a side of said passageway opposite said light source and oriented to detect said light beam being projected from said light source, whereby any object passing through said passageway will interrupt said light beam.

94. The dispenser of claim 92, further comprising means for recording the time when said detecting means detects passage of each said object.

95. The dispenser of claim 92, further comprising counting means responsive to said detecting means for counting the number of objects detected by said detecting means.

96. The dispenser of claim 95, further comprising means for recording the quantity of objects counted by said counting means.

97. The dispenser of claim 86, wherein said receptacle stores said objects in a loose and non-ordered state.

98. The dispenser of claim 86, wherein said compressible material comprises foam rubber.

99. The dispenser of claim 87, wherein said compressible material comprises bristles.

100. The dispenser of claim 87, further comprising a one-way gate disposed adjacent an outlet end of said passageway configured to permit movement of said objects out of said dispenser.