IP Library › Granted Patent US 9,102,423
Granted Patent B2
US 9,102,423 · App. 13/485,773 · Granted Aug 11, 2015

Flip-lock instant closure mechanism and method

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Quick Facts
Patent No.
US 9,102,423
App. No.
13/485,773
Granted
Aug 11, 2015
Kind
B2
Abstract

One embodiment relates to an instant closure mechanism comprising first and second flat, strip like sealing structures having a first orientation, first and opposing second ends; first and opposing second edges; a first pivot member dividing the sealing structures into an first and second portions, and a contour including at least one curved portion having a large gradual radius intersecting at least one of the first end and the second end. At least two second pivot members having an orientation perpendicular to the first orientation; a tab member enabled to pivot from a first flat position to a second bent position, and a sealing member coupled to the tab member via the horizontal pivot member. The sealing members are joined, providing a sealing interface, and whereby pivoting the tab member imparts a deformation of at least one of the two sealing structures resembling the contour of the first pivot members.

Claims (66)

1. An instant closure mechanism, comprising:

a first flat, strip like sealing structure having a first orientation defined with respect to a length of the first sealing structure, the first sealing structure having:

a first end;

a second end opposite the first end;

a first edge;

a second edge opposite the first edge;

a first pivot member substantially parallel to the first orientation extending between the first end and the second end and dividing the first structure into a first portion proximate the first edge and a second portion proximate the second edge, and having a contour including at least one curved portion having a large gradual radius intersecting at least one of the first end and the second end;

at least two second pivot members each having a straight contour and located proximate the first end and the second end, the pivot members having an orientation substantially perpendicular to the first orientation;

a tab member located in the first portion, the tab member enabled to pivot about the first pivot member between a first flat position and a second bent position, providing a surface region for a user to apply pressure; and

a sealing member located in the first sealing structure second portion and coupled to the tab member via the first pivot member; and

a second flat, strip like sealing structure having a first orientation defined with respect to a length of the second sealing structure and positioned relative to the first sealing structure, the second sealing structure having:

a first end;

a second end opposite the first end;

a first edge;

a second edge opposite the first edge;

a first pivot member substantially parallel to the first orientation extending between the first end and the second end and dividing the second sealing structure into a first portion proximate the first edge and a second portion proximate the second edge, and having a contour including at least one curved portion having a large gradual radius intersecting at least one of the first end and the second end;

at least two second pivot members each having a straight contour and located proximate the first end and the second end, the pivot members having an orientation substantially perpendicular to the first orientation;

a tab member located in the first portion, the tab member enabled to pivot about the first pivot member between a first flat position and a second bent position; and

a sealing member located in the second sealing structure second portion and coupled to the tab member via the first pivot member, whereby the sealing members are joined, providing a sealing interface between the first sealing structure and the second sealing structure;

wherein the contour of the pivot member of the first sealing structure including at least one linear portion having a slight draft at a selected angle with respect to an axis defined between the first end and the second end of the first sealing structure and intersecting at least one of the first end and the second end of the first sealing structure, the at least one curved portion tangent to the linear portion;

wherein the contour of the pivot member of the second sealing structure including at least one linear portion having a slight draft at a selected angle with respect to an axis defined between the first end and the second end of the second sealing structure and intersecting at least one of the first end and the second end of the second sealing structure, the at least one curved portion tangent to the linear portion, whereby the linear portion of the first sealing structure mates proximate the curved portion of the second sealing structure and the linear portion of the second sealing structure mates proximate the curved portion of first sealing structure;

wherein the first sealing structure and second sealing structure are in a closed and locked configuration where pivoting the tab member of the first sealing structure about the first pivot member of the first sealing structure imparts a deformation of the sealing member of the first sealing structure resembling the contour of the first pivot member of the first sealing structure and pivoting the tab member of the second sealing structure about the first pivot member of the second sealing structure imparts a deformation of the sealing member of the second sealing structure resembling the contour of the first pivot member of the second sealing structure; and

wherein the mating of the linear portion of the sealing member of the first sealing structure about the curved portion of the sealing member of the second sealing structure resulting in a deformation of the linear portion of the sealing member of the first sealing structure following the contour of the curved portion of the sealing member of the second sealing structure thereby preventing the first tab member from pivoting about the first pivot member of the first sealing structure, creating a locking effect of the tab member of the first sealing structure.

2. The mechanism of claim 1 wherein the first sealing structure and the second sealing structure are movable into a flat, closed and unlocked configuration where the tab member of the first sealing structure is parallel to the sealing member of first sealing structure and the tab member of the second sealing structure is parallel to the sealing member of the second sealing structure.

3. The mechanism of claim 1 wherein the first sealing structure and second sealing structure are movable into an open configuration where the tab member and sealing member of the first sealing structure pivot about the second pivot members of the first sealing structure and the tab member and sealing member of the second sealing structure pivot about the second pivot members of the second sealing structure thereby creating an separation between the first sealing structure and the second sealing structure.

4. The mechanism of claim 1 wherein the deformation of the sealing member of the first sealing structure and the sealing member of the second sealing structure results in a tensioning force applied between opposing ends of the closure mechanism, thus creating a sealing pressure between mating surfaces of the sealing member of the first sealing structure and the sealing member of the second sealing structure.

5. The mechanism of claim 1 wherein the selected angle of the slight drafts is between about 0 and 5 degrees with respect to the axis.

6. The mechanism of claim 1 wherein the first sealing structure and the second sealing structure further including a bonding area proximate the first end and second end of the first sealing structure and the second sealing structure, whereby the first sealing structure is bonded to the second sealing structure.

7. The mechanism of claim 6 wherein the first sealing structure is bonded to the second sealing structure using at least one of an adhesive bonding, heat sealing, over molding, or ultrasonic welding process.

8. The mechanism of claim 1 wherein the first sealing structure and the second sealing structure are selected from the group comprising a semi-rigid and flexible plastic material.

9. The mechanism of claim 8 wherein the plastic material is selected from the group comprising polypropylene and polyethylene.

10. The mechanism of claim 1 wherein the contour of the first pivot member of the first sealing structure includes at least two curved portions and a linear portion, the at least two curved portions located proximate to and intersecting the first end and the second end, the at least two curved portions tangent to the linear portion; and

wherein the contour of the first pivot member of the second sealing structure includes at least two linear portions and a curved portion, the at least two linear portions located proximate to and intersecting the first end and the second end and the linear portions having a slight draft at a selected angle with respect to an axis, the curved portion tangent to the at least two linear portions.

11. An instant closure mechanism, comprising:

a first flat, strip like sealing structure having a first orientation defined with respect to a length of the first sealing structure, the first sealing structure having:

a first end;

a second end opposite the first end;

a first edge;

a second edge opposite the first edge;

a first pivot member substantially parallel to the first orientation extending between the first end and the second end and dividing the first structure into a first portion proximate the first edge and a second portion proximate the second edge, and having a contour including at least one curved portion having a large gradual radius intersecting at least one of the first end and the second end;

at least two second pivot members each having a straight contour and located proximate the first end and the second end, the pivot members having an orientation substantially perpendicular to the first orientation;

a tab member located in the first portion, the tab member enabled to pivot about the first pivot member between a first flat position and a second bent position, providing a surface region for a user to apply pressure; and

a sealing member located in the first sealing structure second portion and coupled to the tab member via the first pivot member; and

a second flat, strip like sealing structure having a first orientation defined with respect to a length of the second sealing structure and positioned relative to the first sealing structure, the second sealing structure having:

a first end;

a second end opposite the first end;

a first edge;

a second edge opposite the first edge;

a first pivot member substantially parallel to the first orientation extending between the first end and the second end and dividing the second sealing structure into a first portion proximate the first edge and a second portion proximate the second edge, and having a contour including at least one curved portion having a large gradual radius intersecting at least one of the first end and the second end;

at least two second pivot members each having a straight contour and located proximate the first end and the second end, the pivot members having an orientation substantially perpendicular to the first orientation;

a tab member located in the first portion, the tab member enabled to pivot about the first pivot member between a first flat position and a second bent position; and

a sealing member located in the second sealing structure second portion and coupled to the tab member via the first pivot member, whereby the sealing members are joined, providing a sealing interface between the first sealing structure and the second sealing structure;

wherein the contour of the pivot member of the first sealing structure including at least one linear portion having a slight draft at a selected angle with respect to an axis defined between the first end and the second end of the first sealing structure and intersecting at least one of the first end and the second end of the first sealing structure, the at least one curved portion tangent to the linear portion;

wherein the contour of the pivot member of the second sealing structure including at least one linear portion having a slight draft at a selected angle with respect to an axis defined between the first end and the second end of the second sealing structure and intersecting at least one of the first end and the second end of the second sealing structure, the at least one curved portion tangent to the linear portion, whereby the linear portion of the first sealing structure mates proximate the curved portion of the second sealing structure and the linear portion of the second sealing structure mates proximate the curved portion of first sealing structure;

wherein the first sealing structure and second sealing structure are in a closed and locked configuration where pivoting the tab member of the first sealing structure about the first pivot member of the first sealing structure imparts a deformation of the sealing member of the first sealing structure resembling the contour of the first pivot member of the first sealing structure and pivoting the tab member of the second sealing structure about the first pivot member of the second sealing structure imparts a deformation of the sealing member of the second sealing structure resembling the contour of the first pivot member of the second sealing structure; and

wherein the mating of the linear portion of the sealing member of the second sealing structure about the curved portion of the sealing member of the first sealing structure resulting in a deformation of the linear portion of the sealing member of the second sealing structure following the contour of the curved portion of the sealing member of the first sealing structure thereby preventing the tab member of the second sealing structure from pivoting about the first pivot member of the second sealing structure thus creating a locking effect of the tab member of the second sealing structure.

12. The mechanism of claim 11 wherein the first sealing structure and the second sealing structure are movable into a flat, closed and unlocked configuration where the tab member of the first sealing structure is parallel to the sealing member of first sealing structure and the tab member of the second sealing structure is parallel to the sealing member of the second sealing structure.

13. The mechanism of claim 11 wherein the first sealing structure and second sealing structure are movable into an open configuration where the tab member and sealing member of the first sealing structure pivot about the second pivot members of the first sealing structure and the tab member and sealing member of the second sealing structure pivot about the second pivot members of the second sealing structure thereby creating an separation between the first sealing structure and the second sealing structure.

14. The mechanism of claim 1 wherein the deformation of the sealing member of the first sealing structure and the sealing member of the second sealing structure results in a tensioning force applied between opposing ends of the closure mechanism, thus creating a sealing pressure between mating surfaces of the sealing member of the first sealing structure and the sealing member of the second sealing structure.

15. The mechanism of claim 1 wherein the selected angle of the slight drafts is between about 0 and 5 degrees with respect to the axis.

16. The mechanism of claim 11 wherein the first sealing structure and the second sealing structure further including a bonding area proximate the first end and second end of the first sealing structure and the second sealing structure, whereby the first sealing structure is bonded to the second sealing structure.

17. The mechanism of claim 16 wherein the first sealing structure is bonded to the second sealing structure using at least one of an adhesive bonding, heat sealing, over molding, or ultrasonic welding process.

18. The mechanism of claim 11 wherein the first sealing structure and the second sealing structure are selected from the group comprising a semi-rigid and flexible plastic material.

19. The mechanism of claim 18 wherein the plastic material is selected from the group comprising polypropylene and polyethylene.

20. The mechanism of claim 11 wherein the contour of the first pivot member of the first sealing structure includes at least two curved portions and a linear portion, the at least two curved portions located proximate to and intersecting the first end and the second end, the at least two curved portions tangent to the linear portion; and

wherein the contour of the first pivot member of the second sealing structure includes at least two linear portions and a curved portion, the at least two linear portions located proximate to and intersecting the first end and the second end and the linear portions having a slight draft at a selected angle with respect to an axis, the curved portion tangent to the at least two linear portions.

Assignments (2)
RELEASE OF SECURITY INTEREST Recorded Mar 6, 2026
From: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION (AS SUCCESSOR IN INTEREST TO U.S. BANK NATIONAL ASSOCIATION), AS COLLATERAL AGENT
To: AMPAC FLEXIBLES, LLC; AMPAC FLEXICON, LLC; AMPAC HOLDCO, INC.; AMPAC HOLDINGS, LLC; AMPAC MOBILE HOLDINGS, LLC; AMPAC PACKAGING, LLC; AMPAC PAPER, LLC; AMPAC PLASTICS, LLC; BONITA PACKAGING PRODUCTS, INC.; CEI HOLDINGS, LLC; COATING EXCELLENCE INTERNATIONAL, LLC; GATEWAY PACKAGING COMPANY LLC; JEN-COAT, INC.; MOHAWK NORTHERN PLASTICS, LLC; POLYFIRST PACKAGING, INC.; PROAMPAC HOLDINGS INC.; PROAMPAC ORLANDO INC.; PROAMPAC PG BORROWER LLC; PROAMPAC PG INTERMEDIATE LLC; PROAMPAC REAL ESTATE HOLDINGS LLC; PROAMPAC ROCHESTER LLC; PROLAMINA CORPORATION; PROLAMINA MIDWEST CORPORATION; TRINITY PACKAGING CORPORATION; TULSACK LLC; TWISTED PAPER PRODUCTS, INC.; VITEX PACKAGING, INC.; PAC WORLDWIDE CORPORATION
Reel/Frame 075021/0794 →
SECURITY INTEREST Recorded Jan 27, 2021
From: AMPAC FLEXIBLES, LLC; AMPAC FLEXICON, LLC; AMPAC HOLDCO, INC.; AMPAC HOLDINGS, LLC; AMPAC MOBILE HOLDINGS, LLC; AMPAC PACKAGING, LLC; AMPAC PAPER, LLC; AMPAC PLASTICS, LLC; BONITA PACKAGING PRODUCTS, INC.; CEI HOLDINGS, LLC; COATING EXCELLENCE INTERNATIONAL, LLC; GATEWAY PACKAGING COMPANY LLC; JEN-COAT, INC.; MOHAWK NORTHERN PLASTICS, LLC; POLYFIRST PACKAGING, INC.; PROAMPAC HOLDINGS INC.; PROAMPAC ORLANDO INC.; PROAMPAC PG BORROWER LLC; PROAMPAC PG INTERMEDIATE LLC; PROAMPAC REAL ESTATE HOLDINGS LLC; PROAMPAC ROCHESTER LLC; PROLAMINA CORPORATION; PROLAMINA MIDWEST CORPORATION; TRINITY PACKAGING CORPORATION; TULSACK LLC; TWISTED PAPER PRODUCTS, INC.; VITEX PACKAGING, INC.
To: U.S. BANK NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 055139/0731 →