IP Library Granted Patent US 8,322,555
Granted Patent B2
US 8,322,555 · App. 12/251,144 · Granted Dec 4, 2012

Resealable tamper-evident container assembly and lid

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Quick Facts
Patent No.
US 8,322,555
App. No.
12/251,144
Granted
Dec 4, 2012
Kind
B2
Abstract

A lid includes a generally flat interior portion and an outer ridge area surrounding the interior portion. The outer ridge area includes a first ridge side, a ridge top, and a second ridge side. The first ridge side extends generally upward from the interior portion. The ridge top extends from the first ridge side and is generally parallel to the interior portion. The second ridge side extends generally downward from the ridge top. The second ridge side includes a top section and a bottom section. A thickness of the bottom section is smaller than a thickness of the top section. The bottom section includes at least one fixed tab and at least one tear band. The at least one fixed tab is separated from the at least one tear band by at least one vertical membrane.

Claims (22)

1. A lid comprising:

a generally flat interior portion; and

an outer ridge area surrounding the interior portion, the outer ridge area including a first ridge side, a ridge top, and a second ridge side, the first ridge side extending generally upward from the interior portion, the ridge top extending from the first ridge side and being generally parallel to the interior portion, the second ridge side extending generally downward from the ridge top, the second ridge side including a top section and a bottom section, an inner surface of the top section including a protrusion, the bottom section located below the protrusion, a thickness of the bottom section being smaller than a thickness of the top section above the protrusion, the bottom section including two fixed tabs and two tear bands, the fixed tabs being separated from the tear bands by at least one vertical membrane.

2. The lid of claim 1 , wherein the protrusion is configured to form a seal with a container.

3. The lid of claim 1 , wherein the lid includes linear low density polyethylene.

4. The lid of claim 1 , wherein a portion of at least one tear band positioned adjacent to the vertical membrane includes a tab having a ridged edge.

5. The lid of claim 1 , wherein at least one tear band is separated from the top section of the second ridge side by an area having a thickness smaller than the thickness of the bottom section.

6. The lid of claim 1 , wherein each of the two fixed tabs is positioned generally opposite one another and each of the two tear bands is positioned generally opposite one another.

7. The lid of claim 1 , further comprising a raised gripping feature positioned on the ridge top generally above at least one fixed tab.

8. The lid of claim 1 , wherein the lid is generally circular.

9. A tamper-evident lid comprising:

a generally flat disc portion; and

an outer ridge area surrounding the disc portion, the outer ridge area including a first ridge side extending generally upward from the disc portion, a ridge top extending from the first ridge side and being generally parallel to the disc portion, and a second ridge side extending generally downward from the ridge top, the second ridge side including a top section and a bottom section, a thickness of the bottom section being smaller than a thickness of the top section, the top section being separated from the bottom section by a thinned-out area, the top section including at least one protrusion above the thinned-out area, the bottom section including at least one fixed tab and at least one tear band, the at least one fixed tab being separated from the at least one tear band by at least one vertical membrane, a thickness of the vertical membrane being smaller than the thickness of the bottom section,

wherein the lid is configured to be resealable to a container.

10. The lid of claim 9 , wherein a portion of the at least one tear band positioned adjacent to the vertical membrane includes a tab having a ridged edge.

11. The lid of claim 9 , wherein the at least one fixed tab is two fixed tabs and the at least one tear band is two tear bands.

12. The lid of claim 11 , wherein each of the two fixed tabs are positioned generally opposite one another and each of the two tear bands are positioned generally opposite one another.

13. The lid of claim 9 , further comprising a raised gripping feature positioned on the ridge top generally above the at least one fixed tab.

14. The lid of claim 9 , wherein the lid is formed from linear low density polyethylene.

15. The lid of claim 9 , wherein the lid is generally circular.

16. The lid of claim 9 , further comprising a raised gripping feature positioned on the ridge top generally above the at least one fixed tab.

17. The lid of claim 9 , wherein the at least one protrusion is configured to form a seal with the container.

Assignments (5)
SECURITY INTEREST Recorded Apr 2, 2025
From: BLUE RIDGE PAPER PRODUCTS LLC; EVERGREEN PACKAGING LLC; FABRI-KAL LLC; PACTIV LLC; PACTIV PACKAGING INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 070705/0859 →
CHANGE OF NAME Recorded Nov 16, 2012
From: PWP INDUSTRIES, INC.
To: PACTIV PACKAGING INC.
Reel/Frame 029308/0623 →
MERGER Recorded Oct 23, 2012
From: NEWSPRING INDUSTRIAL CORPORATION
To: PWP INDUSTRIES, INC.
Reel/Frame 029174/0492 →
SECURITY AGREEMENT Recorded Jan 28, 2011
From: PACTIV CORPORATION; NEWSPRING INDUSTRIAL CORP.; PRAIRIE PACKAGING, INC.; PWP INDUSTRIES, INC.
To: THE BANK OF NEW YORK MELLON, AS COLLATERAL AGENT
Reel/Frame 025712/0153 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 2, 2009
From: CHEN, ALLAN K.
To: NEWSPRING PACKAGING
Reel/Frame 022497/0462 →