Bag

Patent metadata

Field	Value
Publication number	US-9624004-B2
Application number	US-201514926463-A
Country	US
Kind code	B2
Filing date	Oct 29, 2015
Priority date	Aug 25, 2008
Publication date	Apr 18, 2017
Grant date	Apr 18, 2017

Abstract

The bag may include a draw tape that may be used to cinch closed the opening of the bag. The draw tape may include an elastic characteristic and may be smaller in size than the peripheral distance about the opening. The draw tape in its natural contracted state may partially constrict the opening. However, the draw tape may be stretched or expanded to enable a user to dilate the opening and fold the periphery of the opening over the rim of the canister. The draw tape may then recover or constrict to grip about the rim of the receptacle to hold the bag to the canister. In one embodiment, the bag may include a pattern proximate the bag opening to allow the bag opening to be stretched over the rim of the canister.

First claim

The invention claimed is:

1. A drawstring comprising:
a stretched draw tape film comprising one or more of linear-low density polyethylene, low-density polyethylene, or high-density polyethylene; and
the stretched draw tape film comprising an elastic characteristic that causes the stretched draw tape film to contract from a first length when in a relaxed state;
wherein the stretched draw tape film is made from an initial draw tape film of the first length subjected to a stretching process that provides the stretched draw tape film with the elastic characteristic;
wherein the stretched draw tape film has an elastic recovery that is greater than an elastic recovery of the initial draw tape film;
wherein the stretched draw tape film is devoid of a pattern of ribs that modify the elastic characteristic of the stretched draw tape film.

2. The drawstring of claim 1 , wherein the stretched draw tape film has a tensile strength per square inch that is equal to a tensile strength per square inch of the initial draw tape film.

3. The drawstring of claim 1 , wherein the stretched draw tape film has a tensile strength greater than a tensile strength of the initial draw tape film.

4. The drawstring of claim 1 , wherein a load required to elongate the stretched draw tape film by 20 percent is 67 percent of a load required to elongate the initial draw tape film by 20 percent.

5. The drawstring of claim 1 , wherein the stretched draw tape film comprises low-density polyethylene.

6. The drawstring of claim 5 , wherein the stretched draw tape film comprises high-density polyethylene.

7. The drawstring of claim 1 , wherein a width of the stretched draw tape film is less than a width of the initial draw tape film.

8. The drawstring of claim 1 , wherein the stretched draw tape film comprises linear low-density polyethylene.

9. The drawstring of claim 1 , wherein a width of the drawstring varies along a length of the drawstring.

10. The drawstring of claim 1 , wherein the drawstring is positioned within a hem of a trash bag.

11. A drawstring comprising:
a stretched draw tape film comprising one or more of linear-low density polyethylene, low-density polyethylene, or high-density polyethylene, the stretched draw tape film being formed from an initial draw tape film; and
an elastic characteristic provided by subjecting the initial draw tape film to a stretching process;
wherein the elastic characteristic provides the stretched draw tape film with elasticity such that a load required to elongate the stretched draw tape film by 20 percent is less than a load required to elongate the initial draw tape film by 20 percent;
wherein the stretched draw tape film is devoid of a pattern of ribs that modify the elastic characteristic of the stretched draw tape film.

12. The drawstring as recited in claim 11 , wherein the stretched draw tape film has an elastic recovery that is greater than an elastic recovery of the initial draw tape film.

13. The drawstring of claim 11 , wherein the elastic characteristic causes the stretched draw tape film to contract from a first length when in a relaxed state, the initial draw tape film having the first length.

14. The drawstring of claim 11 , wherein the stretched draw tape film in a tensioned state has a width equal to 70 percent to 90 percent of a width of the stretched draw tape film in the relaxed state.

15. The drawstring of claim 13 , wherein the stretched draw tape film in the tensioned state has a length equal to 112.5 percent of a length of the stretched draw tape film in the relaxed state.

16. The drawstring of claim 11 , wherein the load required to elongate the stretched draw tape film by 20 percent is 67 percent of the load required to elongate the initial draw tape film.

17. The drawstring of claim 11 , wherein the stretched draw tape film further comprising low density polyethylene.

18. The drawstring of claim 11 , wherein the stretched draw tape film has a tensile strength per square inch that is equal to a tensile strength per square inch of the initial draw tape film.

19. The drawstring of claim 11 , wherein the stretched draw tape film has a tensile strength greater than a tensile strength of the initial draw tape film.

20. The drawstring of claim 11 , wherein the drawstring is positioned within a hem of a trash bag.

Assignees

• Glad Products Co

Inventors

• Kent Gregory S
• Waldron Matthew W
• Broering Shaun T
• Hoying David
• Schroeder John

Classifications

• B65F1/0006

  Flexible refuse receptables, e.g. bags, sacks · CPC title

• B65D33/28 Primary

  Strings or strip-like closures {, i.e. draw closures} · CPC title