IP Library Granted Patent US 8,684,217
Granted Patent B2
US 8,684,217 · App. 12/971,212 · Granted Apr 1, 2014

Easy-open package

Inventors: Peter Brian Bruehl (Greenville, WI); Scott Gregory Pockat (Oshkosh, WI); Aaron John Wallander (Neenah, WI)
Assignee: Curwood, Inc.
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Quick Facts
Patent No.
US 8,684,217
App. No.
12/971,212
Granted
Apr 1, 2014
Kind
B2
Abstract

A rigid or semi-rigid tray is provided, including a bottom and at least one side wall which forms at least one recessed product-receiving compartment, and a flange extending around the tray which forms distal edges of the container. The tray further includes a lidding film affixed to the flange which forms a peelable heat-seal extending around the product-receiving compartment and the distal edges of the container, and an easy-open member positioned between the product-receiving compartment and the distal edges of the container. The easy-open member has a frangible portion of the lidding film which forms a tab member when punctured, for example by the force of a human finger, to provide a means for removing the lidding film from the flange and gaining access to the product-receiving compartment.

Claims (33)

1. An easy-open reusable packaging container comprising:

a rigid or semi-rigid tray comprising a bottom and at least one side wall which forms at least one recessed product-receiving compartment, and a flange extending around said tray which forms distal edges of said container;

a lidding film affixed to said flange which forms a peelable/resealable heat-seal extending around said product-receiving compartment and said distal edges of said container; and

an easy-open member positioned between said product-receiving compartment and said distal edges of said container, and comprising:

a frangible portion of said lidding film which forms a tab member when punctured to provide a means for removing said lidding film from said flange and gaining access to said product-receiving compartment;

wherein said easy-open member further comprises a first line of weakness in said frangible portion of said lidding film extending from a first distal edge of said container to a point of intersection with a second line of weakness in said frangible portion of said lidding film extending from an adjacent second distal edge of said container to said point of intersection with said first line of weakness thereby forming a first portion of said lidding film which remains affixed to said package and a second portion of said lidding film which is removable from one distal edge to an opposing second distal edge of said container without further tearing of said lidding film other than tearing that occurs along the first and second lines of weakness.

2. A container of claim 1 wherein said easy-open member further comprises an aperture in said flange positioned below said frangible portion of said lidding film.

3. A container of claim 1 wherein said easy-open member further comprises a recessed cavity of said flange positioned below said frangible portion of said lidding film.

4. A container of claim 1 wherein said lidding film is peelably heat-sealed to a first area of said flange having a width of at least 0.25 inch and adjacent to said product-receiving compartment, and a second area of said flange having a width of at least 0.25 inch and adjacent to said distal edges of said container.

5. A container of claim 1 wherein said lidding film is peelably heat-sealed to the entire area of said flange.

6. A container of claim 1 wherein a force required to puncture said frangible portion of said lidding film is between about 0.5 Newton and about 20.0 Newton as measured in accordance with ASTM F-1306-90 test method.

7. A container of claim 1 further comprising a tamper-evident feature disposed within said peelable heat-seal.

8. A container of claim 1 wherein said tray is a monolayer film.

9. A container of claim 1 wherein said tray is a multilayer film.

10. A container of claim 1 wherein said lidding film is a monolayer film.

11. A container of claim 1 wherein said lidding film is a multilayer film.

12. A container of claim 1 further comprising a plurality of recessed product-receiving compartments.

13. An easy-open packaging container comprising:

a rigid or semi-rigid tray comprising a bottom and at least one side wall which forms at least one recessed product-receiving compartment, and a flange extending around said tray which forms distal edges of said container;

a lidding film affixed to said flange which forms a peelable heat-seal extending around said product-receiving compartment and said distal edges of said container; and

an easy-open member positioned between said product-receiving compartment and said distal edges of said container, and comprising:

a frangible portion of said lidding film unsealed to said flange and an aperture in said flange positioned below said frangible portion of said lidding film;

wherein said frangible portion of said lidding film forms a tab member when punctured to provide a means for removing said lidding film from said flange and gaining access to said at least one recessed product-receiving compartment;

wherein said easy-open member further comprises a first line of weakness in said frangible portion of said lidding film extending from a first distal edge of said container to point of intersection with second line of weakness in said frangible portion of said lidding film extending from an adjacent second distal edge of said container to said point of intersection with said first line of weakness thereby forming a first portion of said lidding film which remains affixed to said package and a second portion of said lidding film which is removable from one distal edge to an opposing second distal edge of said container without further tearing of said lidding film other than tearing that occurs along the first and second lines of weakness.

14. A container of claim 13 wherein said lidding film is peelably heat-sealed to a first area of said flange having a width of at least 0.25 inch and adjacent to said product-receiving compartment, and a second area of said flange having a width of at least 0.25 inch and adjacent to said distal edges of said container.

15. A container of claim 13 wherein said lidding film is peelably heat-sealed to the entire area of said flange.

16. A container of claim 13 wherein a force required to puncture said frangible portion of said lidding film is between about 0.5 Newton and about 20.0Newton or less as measured in accordance with ASTM F-1306-90 test method.

17. A container of claim 13 further comprising a tamper-evident feature disposed within said peelabie heat-seal.

18. A container of claim 13 wherein said tray is a monolayer film

19. A container of claim 13 wherein said tray is a multilayer film,

20. A container of claim 13 wherein said lidding film is a monolayer film.

21. A container of claim 13 wherein said lidding film is a multilayer film.

22. A container of claim 13 further comprising a plurality of recessed product-receiving compartments.

Assignments (2)
MERGER AND CHANGE OF NAME Recorded Jul 25, 2017
From: CURWOOD, INC.; BEMIS COMPANY, INC.
To: BEMIS COMPANY, INC.
Reel/Frame 043327/0749 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 17, 2010
From: BRUEHL, PETER BRIAN; POCKAT, SCOTT GREGORY; WALLANDER, AARON JOHN
To: CURWOOD, INC.
Reel/Frame 025516/0736 →
Continuity (1)
Related Publication 20120152954A1 · Jun 21, 2012