Membrane lid with integrated peelable portion

Patent metadata

Field	Value
Publication number	US-11225355-B2
Application number	US-201715807200-A
Country	US
Kind code	B2
Filing date	Nov 8, 2017
Priority date	Nov 8, 2017
Publication date	Jan 18, 2022
Grant date	Jan 18, 2022

Abstract

The present invention relates to a flexible membrane lid for a container comprising a top paper layer which is perforated to form a perimeter of at least one peelable portion and a bottom film layer. In some embodiments, the bottom film layer is partially adhered to the top paper layer, wherein the layers are not adhered within the perimeter of the peelable portion. In other embodiments, the layers are adhered with a pressure sensitive adhesive within the perimeter of the peelable portion and with a permanent adhesive in the remainder of the area between the top paper layer and bottom film layer. In other embodiments, the invention relates to a flexible membrane lid for a container comprising a top paper layer comprising a pull tab and a bottom film layer which is removably adhered to the top paper layer, wherein bottom film layer comprises a separate pull tab.

First claim

What is claimed is:

1. A flexible membrane lid for a container comprising:
a top layer having an upper surface and a lower surface, wherein the top layer comprises:
perforations extending through the top layer which form a perimeter of at least one peelable portion; and
at least a first top layer pull tab and a second top layer pull tab, wherein the first top layer pull tab is continuous with the peelable portion; and

a bottom layer having an upper surface and a lower surface, wherein:
the bottom layer comprises at least a first bottom layer pull tab and a second bottom layer pull tab;
the first top layer pull tab is adhered to the first bottom layer pull tab to form a first pull tab;
the second top layer pull tab is adhered to the second bottom layer pull tab to form a second pull tab;
the upper surface of the bottom layer is adhered to the lower surface of the top layer other than within the perimeter of the peelable portion; and
the bottom layer is scored between the first pull tab and the remainder of the bottom layer to allow separation between the first bottom layer pull tab and the remainder of the bottom layer.

2. The flexible membrane lid of claim 1 wherein the top layer comprises at least one ply of paper.

3. The flexible membrane lid of claim 1 wherein the bottom layer comprises at least one ply of flexible film.

4. The flexible membrane lid of claim 1 wherein the first pull tab and the second pull tab are positioned in different locations about the membrane lid.

5. The flexible membrane lid of claim 1 wherein the first pull tab and the second pull tab radially extend from the membrane lid.

6. The flexible membrane lid of claim 1 wherein the bottom side of the peelable portion of the paper layer displays printed information.

7. The flexible membrane lid of claim 6 , wherein the printed information comprises a coupon, discount, prize information, or product information.

8. The flexible membrane lid of claim 1 wherein the upper side of the bottom layer, in the location of the peelable portion, displays printed information.

9. The flexible membrane lid of claim 8 , wherein the printed information comprises a coupon, discount, prize information, or product information.

10. The flexible membrane lid of claim 1 comprising a plurality of peelable portions.

11. The flexible membrane lid of claim 1 adhered to an open end of a container, wherein the bottom layer is adhered to the container open end.

12. The flexible membrane lid of claim 11 wherein the bottom layer is adhered to the container open end via a membrane sealant.

13. The flexible membrane lid of claim 11 wherein the peelable portion is removable from the membrane lid without disturbing the adherence of the lid to the container.

14. The flexible membrane lid of claim 1 wherein the perforations in the top layer begin at each edge of the first pull tab and extend across the membrane lid to an opposite side of the membrane lid.

15. A flexible membrane lid for a container comprising:
a top layer having an upper surface and a lower surface, wherein the top layer comprises:
perforations extending through the top layer which form a perimeter of at least one peelable portion; and
at least a first top layer pull tab and a second top layer pull tab, wherein the first top layer pull tab is continuous with the peelable portion; and

a bottom layer having an upper surface and a lower surface, wherein:
the bottom layer comprises at least a first bottom layer pull tab and a second bottom layer pull tab;
the first top layer pull tab is adhered to the first bottom layer pull tab to form a first pull tab;
the second top layer pull tab is adhered to the second bottom layer pull tab to form a second pull tab;
the upper surface of the bottom layer is permanently adhered to the lower surface of the top layer other than within the perimeter of the peelable portion;
the upper surface of the bottom layer is releasably adhered to the lower surface of the top layer within the perimeter of the peelable portion; and
the bottom layer is scored between the first pull tab and the remainder of the bottom layer to allow separation between the first bottom layer pull tab and the remainder of the bottom layer.

16. The flexible membrane lid of claim 15 wherein the first pull tab and the second pull tab are positioned in different locations about the membrane lid.

17. The flexible membrane lid of claim 15 wherein the first pull tab and the second pull tab radially extend from the membrane lid.

18. The flexible membrane lid of claim 15 adhered to an open end of a container.

19. The flexible membrane lid of claim 18 wherein the peelable portion is removable from the membrane lid without disturbing the adherence of the lid to the container.

20. The membrane lid of claim 11 wherein the second pull tab is continuous with the bottom layer such that the bottom layer is removed from the container open end upon pulling of the second pull tab.

21. The membrane lid of claim 18 wherein the second pull tab is continuous with the bottom layer such that the bottom layer is removed from the container open end upon pulling of the second pull tab.

Assignees

• Sonoco Dev Inc

Inventors

• Huffer Scott William

Classifications

• B32B38/145

  Printing · CPC title

• B32B37/0076

  characterised in that the layers are not bonded on the totality of their surfaces · CPC title

• B32B38/0012

  Mechanical treatment, e.g. roughening, deforming, stretching · CPC title

• B32B2317/12

  Paper, e.g. cardboard · CPC title

• B32B38/0004

  Cutting, tearing or severing, e.g. bursting; Cutter details (cutting in general B26D; laminating combined with punching or perforating B32B38/04; removing all or part of the layers B32B38/10; cutting in combination with laying up and registration B32B38/185 takes precedence) · CPC title