Drawstring trash bag with thick hem region

Patent metadata

Field	Value
Publication number	US-10569935-B2
Application number	US-201815977146-A
Country	US
Kind code	B2
Filing date	May 11, 2018
Priority date	Feb 11, 2014
Publication date	Feb 25, 2020
Grant date	Feb 25, 2020

Abstract

The present invention is directed to a thermoplastic drawstring trash bag wherein the thermoplastic drawstring trash bag has an enhanced thickness region in one or more panels of the drawstring trash bag. The enhanced thickness region has an average thickness that is greater than the thickness of the remaining portions of the panels forming the drawstring trash bag. The enhanced thickness region is generally in the area of the hems and traverses the hem seals.

First claim

I claim:

1. A drawstring bag of thermoplastic film comprising:
a first panel and a second panel, the first panel and second panel joined along a first side edge, a second side edge, and a bottom edge,
a top edge of the first panel folded upon itself to form a first hem along an upper opening of the drawstring bag with a first hem seal defining a bottom of the first hem,
a first drawstring disposed and secured within the first hem,
a first enhanced thickness region defined in the thermoplastic film of the first hem, the first enhanced thickness region extending from the upper opening of the drawstring bag to below the first hem seal,
an average thickness of the first enhanced thickness region greater than an average thickness of the first panel excluding the first enhanced thickness region and less than an average thickness of the first drawstring,
wherein each of the average thicknesses is measured through a single layer of the thermoplastic film, and

the first panel excluding the first enhanced thickness region devoid of a ribbed pattern.

2. The drawstring bag of claim 1 , further comprising:
the first enhanced thickness region extends from the upper opening of the drawstring bag to at least one inch below the first hem seal.

3. The drawstring bag of claim 2 , further comprising:
the first enhanced thickness region extends from the upper opening of the drawstring bag to between two inches and four inches below the first hem seal.

4. The drawstring bag of claim 1 , further comprising:
a top edge of the second panel folded upon itself to form a second hem along an upper opening of the drawstring bag with a second hem seal defining a bottom of the second hem, the second hem seal extending from the first side edge to the second side edge of the drawstring bag,
a second drawstring disposed and secured within the second hem,
a second enhanced thickness region defined in a thermoplastic film forming the second panel, the second enhanced thickness region extending from the first side edge to a second side edge and traversing the second hem seal, and
wherein an average thickness of the second enhanced thickness region measured across the thermoplastic film forming the second panel is greater than an average thickness of the second panel excluding the second enhanced thickness region.

5. The drawstring bag of claim 4 , further comprising:
the second enhanced thickness region extends from the upper opening of the drawstring bag to below the second hem seal.

6. The drawstring bag of claim 5 , further comprising:
the second enhanced thickness region extends from the upper opening of the drawstring bag to at least one inch below the second hem seal.

7. The drawstring bag of claim 6 , further comprising:
the second enhanced thickness region extends from the upper opening of the drawstring bag to between two inches and four inches below the second hem seal.

8. A drawstring bag of thermoplastic film comprising:
a first panel and a second panel, the first panel and second panel joined along a first side edge, a second side edge, and a bottom edge,
a top edge of the first panel folded upon itself to form a first hem along an upper opening of the drawstring bag with a first hem seal defining a bottom of the first hem,
a first drawstring disposed and secured within the first hem,
the thermoplastic film of the first panel divided into an upper portion and a lower portion, the upper portion extending below the first hem seal,
an average thickness of each layer of the upper portion greater than an average thickness of each layer of the lower portion and less than an average thickness of the first drawstring,
wherein each of the average thicknesses is measured through the thermoplastic film from a first side to an opposing second side, and

the lower portion of the thermoplastic film devoid of a ribbed pattern.

9. The drawstring bag of claim 8 , further comprising:
the upper portion of the first panel extends at least one inch below the first hem seal.

10. The drawstring bag of claim 9 , further comprising:
the upper portion of the first panel extends between two inches and four inches below the first hem seal.

11. The drawstring bag of claim 8 , further comprising:
a top edge of the second panel folded upon itself to form a second hem along an upper opening of the drawstring bag with a second hem seal defining a bottom of the second hem, the second hem seal extending from the first side edge to the second side edge of the drawstring bag,
a second drawstring disposed and secured within the second hem,
a second enhanced thickness region defined in a thermoplastic film forming the second panel, the second enhanced thickness region extending from the first side edge to a second side edge and traversing the second hem seal, and
wherein an average thickness of the second enhanced thickness region measured across the thermoplastic film forming the second panel is greater than an average thickness of the second panel excluding the second enhanced thickness region.

12. The drawstring bag of claim 11 , further comprising:
the second enhanced thickness region extends from the upper opening of the drawstring bag to below the second hem seal.

13. The drawstring bag of claim 12 , further comprising:
the second enhanced thickness region extends from the upper opening of the drawstring bag to at least one inch below the second hem seal.

14. The drawstring bag of claim 13 , further comprising:
the second enhanced thickness region extends from the upper opening of the drawstring bag to between two inches and four inches below the second hem seal.

Assignees

• Poly America Lp

Inventors

• Ross Michael A

Classifications

• B65F1/002

  with means for opening or closing of the receptacle · CPC title

• B65D33/28 Primary

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