Receptacle liner

Patent metadata

Field	Value
Publication number	US-9919868-B2
Application number	US-201514928169-A
Country	US
Kind code	B2
Filing date	Oct 30, 2015
Priority date	Oct 30, 2015
Publication date	Mar 20, 2018
Grant date	Mar 20, 2018

Abstract

A receptacle liner for gripping the receptacle and method of making. A liner may be formed by one or more panels including at least one resilient segment extending from a bottom to a top of the liner. The liner segment can be coextruded so that the resilient segment is made from resilient material and other portions of the liner are made from another material that is less resilient. When the liner is placed in a receptacle, the liner can be expanded by resiliently stretching the resilient segment so that the liner may apply a gripping force to the receptacle. The liner can include gusseted side panels. A mouth can be formed as a recess in the top ends of front and rear panels and extend through the gusseted side panels to define handle portions and form apertures in the handle portions that open to the mouth.

First claim

What is claimed is:

1. A liner for lining a receptacle, the liner comprising a first segment extending from a bottom of the liner to a top of the liner and a second segment extending from the bottom of the liner to the top of the liner, the first and second segments being operatively connected to each other and arranged to at least partially define an interior volume of the liner, form the bottom of the liner that is closed and form the top of the liner having a mouth opening into the interior volume of the liner, the first segment being formed of a first material and the second segment being formed of a second material that is more elastically resilient than the first material whereby the mouth at the top of the liner can be expanded by resiliently stretching the second segment so that the liner may apply a gripping force to the receptacle in which the liner is placed; wherein the mouth has a mouth perimeter and wherein the liner comprises a liner perimeter about an axis of the liner extending from the bottom to the top of the liner, the mouth perimeter being from about 50% to about 99% of the liner perimeter; and wherein:
the liner comprises a front panel, a rear panel, a top edge at the top of the liner, and first and second handle portions at the top of the liner arranged on opposite sides of the mouth;
the front panel and the rear panel are joined together along each of the first and second handle portions at the top edge of the liner;
the mouth perimeter includes at least a front edge at the front panel, a rear edge at the rear panel, and first and second side edges extending between the front and rear edges; and
each of the first and second side edges includes a front segment extending along a respective one of the first and second handle portions from adjacent the front edge to the top edge of the liner and a rear segment extending along the respective one of the first and second handle portions from adjacent the rear edge to the top edge of the liner.

2. A liner as set forth in claim 1 wherein the first and second segments are co-extruded.

3. A liner as set forth in claim 1 wherein the first and second side edges of the mouth are connected to the front and rear edges of the mouth at respective corners.

4. A liner as set forth in claim 3 wherein the second segment is generally aligned with one of the corners.

5. A liner as set forth in claim 4 further comprising third, fourth, and fifth segments comprising the second material and extending from the bottom of the liner to the top of the liner, the second, third, fourth, and fifth segments of the liner each being generally aligned with a respective one of the corners of the mouth.

6. A liner as set forth in claim 5 further comprising sixth, seventh, and eighth segments comprising the first material and extending from the bottom of the liner to the top of the liner, the first, sixth, seventh, and eighth segments each extending between a respective adjacent pair of the said second, third, fourth, and fifth segments.

7. A liner as set forth in claim 1 wherein the second material comprises one of a high performance, conventional or single-site metallocene-linear low density polyethylene, an ethylene-vinyl acetate copolymer, and a linear low density polyethylene.

8. A liner for lining a receptacle, the liner comprising a first segment, a second segment, a third segment, a fourth segment, a fifth segment, a sixth segment, a seventh segment, and an eighth segment, each of the first, second, third, fourth, fifth, sixth, seventh, and eighth segments extending from the bottom of the liner to the top of the liner and the first, second, third, fourth, fifth, sixth, seventh, and eighth segments being operatively connected to each other and arranged to at least partially define an interior volume of the liner, form the bottom of the liner that is closed and form the top of the liner having a mouth opening into the interior volume of the liner, the mouth having a front edge, a rear edge, and first and second side edges extending between the front and rear edges and connected to the front and rear edges at respective corners, the first, second, third, and fourth segments being formed of a first material and the fifth, sixth, seventh, and eighth segments being arranged side-by-side in alternating sequence with the first, second, third, and fourth segments and formed of a second material that is more elastically resilient than the first material in a circumferential direction of the liner whereby the mouth at the top of the liner can be expanded by resiliently stretching the fifth, sixth, seventh, and eighth segments so that the liner may apply a gripping force in the circumferential direction of the liner to the receptacle in which the liner is placed, wherein:
at least some of the first, second, third, and fourth segments define side panels of the liner;
each of the fifth, sixth, seventh, and eighth segments is aligned with a respective one of the corners of the mouth;
each of the first, second, third, and fourth segments is aligned with a respective one of the front, rear, and first and second side edges of the mouth; and
the side panels are free of the fifth, sixth, seventh, and eighth segments.

9. A liner as set forth in claim 8 wherein the mouth has a mouth perimeter and wherein the liner comprises a liner perimeter about an axis of the liner extending from the bottom to the top of the liner, the mouth perimeter being from about 50% to about 99% of the liner perimeter.

10. A liner as set forth in claim 8 wherein the second material comprises one of a high performance, conventional or single-site metallocene linear low density polyethylene, an ethylene-vinyl acetate copolymer, and a linear low density polyethylene.

Assignees

• Inteplast Group Ltd
• Inteplast Group Corp

Inventors

• Tseng Ben
• Li Jyh-Yao Raphael
• Yang Kelvin

Classifications

• B65F2250/114

  Plastics · CPC title

• B29C47/0026

  Operations & Transport · mapped topic

• B29C47/062

  Operations & Transport · mapped topic

• B29C47/0066

  Operations & Transport · mapped topic

• B65F1/0006 Primary

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