System for disposing waste packages such as diapers

• US 8,567,157 B2
• Filed: 10/30/2009
• Issued: 10/29/2013
• Est. Priority Date: 10/30/2009
• Status: Active Grant

• Current Assignee: Munchkin Incorporated
• Original Assignee: Munchkin Incorporated
• Inventors: Dunn, Steven B., Hatherill, Mark A., Johnson, Kevin D.
• Primary Examiner(s): GERRITY, STEPHEN FRANCIS
• Application Number:
  US12/609,836
• Publication Number:
  US 20110099958A1
• Time in Patent Office: 1,460 Days
• Field of Search: 53/77, 535/67, 535/76, 533/70, 531/383, 531/387, 535/87, 534/83, 200/61.62, 220/495.06, 220/908.1, 220/908.2
• US Class Current: 53/370
• CPC Class Codes: B65B 7/12 and twisting
• CPC Class Codes: B65F 1/0006 Flexible refuse receptables, e.g. bags, sacks
• CPC Class Codes: B65F 1/06 with flexible inserts, e.g. bags or sacks B65F1/0073 takes precedence
• CPC Class Codes: B65F 2210/1675 by twisting, e.g. of a flexible tube
• CPC Class Codes: B65F 2240/132 Diapers

Abstract

Systems and methods for facilitating hygienic storage and disposal of waste packages such as used disposable diapers include a housing, a lid, and a bag unit having a bag frame and an attached single use flexible bag. The flexible bag is pleated and larger in cross-section at a lower portion than it is at the connection to the bag frame. The bag frame is releasably mounted to the housing so that it will not rotate. The lower portion of the flexible bag is positioned in a storage chamber of the housing that is shaped so as to align and center the bag. A rotatable member having radially extending flexible fingers is engaged with an intermediate portion of the bag. When the lid is closed, the rotatable member will twist the intermediate portion of the bag, sealing odors in the lower portion of the bag. A parent or caregiver will push the waste package through the resistance of the twisted intermediate portion into the lower portion of the bag, and close the lid to re-seal the twisted portion.

Claims

1. A diaper pail assembly, comprising:

a housing;

a bag attached to a frame, wherein the frame is releasably mounted to said housing so as not to rotate with respect to said housing; and

a rotatable member for twisting a portion of said bag, said rotatable member comprising;

a plurality of flexible, inwardly extending fingers; and

a corresponding plurality of spaces defined between said fingers, and wherein at least one of said spaces has a first width at a first location and a second width at a second location, wherein said first width is greater than said second width, and wherein a first side edge and a second side edge of two adjacent flexible fingers are concavely curved, whereby each of said spaces between adjacent fingers has a greatest width near a radial midpoint of said fingers.

2. A diaper pail assembly according to claim 1, wherein said first location is located substantially at a radial midpoint of said fingers, and said second location is radially spaced from said first location.

3. A diaper pail assembly according to claim 1, wherein said first width is within a range of about 3 mm to about 11 mm.

4. A diaper pail assembly according to claim 3, wherein said first width is within a range of about 4.5 mm to about 9.5 mm.

5. A diaper pail assembly according to claim 4, wherein said first width is within a range of about 6 mm to about 8 mm.

6. A diaper pail assembly according to claim 1, wherein said second location is near a radial distal end of said fingers, and wherein said second width is within a range of about 0.5 mm to about 5 mm.

7. A diaper pail assembly according to claim 6, wherein said second width is within a range of about 1.5 mm to about 3.5 mm.

8. A diaper pail assembly according to claim 1, wherein a ratio of said first width and said second width is within a range of about 1.5 to about 4.0.

9. A diaper pail assembly according to claim 8, wherein said ratio of said first width to said second width is within a range of about 2.0 to about 3.5.

10. A diaper pail assembly according to claim 1, wherein said at least one of said spaces has a third width at a third location, and wherein said third width is less than said first width.

11. A diaper pail assembly according to claim 10, wherein said first location is located substantially at a radially generally central location along said fingers, said second location is spaced radially inward from said first location, and said third location is spaced radially outward from said first location.

12. A diaper pail according to claim 1, wherein said flexible fingers are constructed and arranged to define a central opening having a minimum diameter when said fingers are in an unstressed position, and wherein said minimum diameter is within a range of about 3 mm to about 13 mm.

13. A diaper pail according to claim 12, wherein said minimum diameter is within a range of about 5 mm to about 11 mm.