Flip-top recloseable container with positive closure arrangement

• US 5,515,996 A
• Filed: 06/06/1994
• Issued: 05/14/1996
• Est. Priority Date: 06/06/1994
• Status: Expired due to Fees

• Current Assignee: Caraustar Industries Incorporated (Greif Incorporated)
• Original Assignee: Packaging Corporation of America
• Inventors: Stone, James L.
• Primary Examiner(s): Shoap, Allan N.
• Assistant Examiner(s): MCDONALD, CHRISTOPHER
• Application Number:
  US08/254,142
• Time in Patent Office: 708 Days
• Field of Search: 229/224, 229/225, 229/125.26, 229/933, 229/935, 229/145, 229/141, 220/408, 220/410, 220/416
• US Class Current: 229/122.32
• CPC Class Codes: B65D 2301/10 Blanks mutually positioned to minimise waste material upon cutting out the individual blank from a continuous or large sheet
• CPC Class Codes: B65D 5/5425 and defining after rupture a lid hinged to the upper edge of the container body
• CPC Class Codes: B65D 5/543 the container being provided with an internal frame or the like for maintaining the lid in the closed position by friction
• CPC Class Codes: B65D 5/6608 the lid being held in closed position by self-locking integral flaps

Abstract

A recloseable container comprises an outer carton and a liner constructed and arranged for placement within the carton. The carton includes opposing top and bottom walls, opposing front and back walls, and opposing first and second side walls. The first and second side walls and the front wall include a continuous horizontal tear strip for opening up the carton from a sealed form to form a lid hingedly attached to a base section. The liner includes a front panel and opposing first and second side sections for fitting the liner within the carton. The first and second side sections include respective first and second side panels having outer surfaces adjacent inner surfaces of the respective first and second carton side walls. Each of the first and second liner side sections includes a hinged portion and an island portion disposed in forcibly displaceable mutual engagement such that opening the container lid exerts a force which disengages the mutual engagement between the hinged portion and the island portion, and reclosing the lid leads to snap re-engagement of the hinged portion and the island portion.

Claims

1. A recloseable container, comprising:

an outer carton including opposing top and bottom walls, opposing front and back walls, and opposing first and second side walls, the first and second side walls and the front wall including a continuous horizontal tear strip for opening up the carton from a sealed form to form a lid hingedly attached to a base section; and

a liner constructed and arranged for placement within the carton and including a front panel and opposing first and second side sections for fitting the liner within the carton, the first and second side sections including respective first and second side panels having outer surfaces adjacent inner surfaces of the respective first and second carton side walls, each of the first and second liner side sections including a hinged portion and an island portion disposed in forcibly displaceable mutual engagement such that opening the container lid exerts a force which disengages the mutual engagement between the hinged portion and the island portion, and reclosing the lid leads to snap re-engagement of the hinged portion and the island portion;

wherein the liner and the carton are assembled such that the island portion is fixedly attached to an inner surface of the carton lid and at the same time separatably attached to the hinged portion and wherein opening of the lid separates the island portion from the hinged portion while retaining the hinged portion on the associated liner side section.

2. The recloseable container of claim 1, wherein the snap re-engagement of the hinged portion and the island portion is accompanied by positive tactile and audible feedback.

6. The recloseable container of claim 1, wherein the first and second liner side sections include respective first and second extension flaps hingedly connected to upper edges of the respective first and second liner side panels, the first extension flap being disposed between the first liner side panel and the first carton side wall, the second extension flap being disposed between the second liner side panel and the second carton side wall, the first and second extension flaps being spaced away from the front panel of the liner, the hinged portion and the island portion of the associated liner side section being formed from the extension flap associated therewith.

7. The recloseable container of claim 6, wherein the respective first and second liner side panels include respective first and second cut-away portions located at the lower edges thereof and spaced away from the front panel of the liner, said first and second cut-away portions being configured in the shape of the respective first and second extension flaps.

8. The recloseable container of claim 1, wherein the carton and the liner are formed from respective unitary blanks.

9. The recloseable container of claim 8, wherein the carton blank is composed of a material selected from the group consisting of corrugated board and paperboard, and wherein the liner blank is composed of a material selected from the group consisting of corrugated board and paperboard.

10. The recloseable container of claim 1, wherein the liner extends substantially from the top wall of the carton to the bottom wall thereof.

11. The recloseable container of claim 1, wherein the island portion and the hinged portion are substantially parallel to the tear strip and are substantially disposed above the tear strip.

12. The recloseable container of claim 1, wherein the hinged portion is wider than the island portion so as to form at least one shoulder relative to the island portion.

3. The recloseable container of claim 3 wherein the hinged portion and the island portion are separatably linked to each other about opposing transverse edges thereof, the distal transverse edges of the island portion being separatably attached to the associated liner side section, wherein opening of the carton lid causes the island portion to be separated from the hinged portion and the associated liner side section and be retained on the inner surface of the carton lid.

4. The recloseable container of claim 3 wherein opening of the carton lid causes the opposing transverse edge of the island portion to push against the opposing transverse edge of the hinged portion until the engagement therebetween is released by relative inward movement of the hinged portion and the associated liner side section.

5. The recloseable container of claim 3 wherein reclosing of the carton lid causes re-engagement between the opposed transverse edges of the island portion and the hinged portion by interaction between the hinged portion and the island portion wherein the hinged portion and the associated liner side section undergo relative inward movement until the island portion realizes snap engagement between the opposed transverse edges accompanied by the positive tactile and audible feedback.

13. A recloseable container, comprising:

an outer carton including opposing top and bottom walls, opposing front and back walls, and opposing first and second side walls, the first and second side walls and the front wall including a continuous horizontal tear strip for opening up the container from a sealed form to form a lid hingedly attached to a base section; and

a liner constructed and arranged within the carton and including a front panel and opposing first and second side panels for fitting the liner within the carton, the first and second side panels having outer surfaces adjacent inner surfaces of the respective first and second carton side walls, the liner further including first and second extension flaps hingedly connected to upper edges of the respective first and second side panels, the first and second extension flaps being disposed between the respective first and second liner side panels and the respective first and second carton side walls, each of the first and second extension flaps including (i) a hinged portion hingedly connected to the upper edge of the associated liner side panel and (ii) an island portion separatably linked to the hinged portion by weakening nicks, an inner surface of the island portion being fixedly attached to an inner surface of the carton lid;

wherein the hinged portion and the island portion are disposed in forcibly displaceable mutual engagement such that removing the tear strip and opening the carton lid causes the island portion to break free of the weakening nicks and to disengage the mutual engagement, and reclosing the lid leads to snap re-engagement of the hinged portion and the island portion.

14. A recloseable container, comprising:

an outer carton including opposing top and bottom walls, opposing front and back walls, and opposing first and second side walls, the first and second side walls and the front wall including a continuous horizontal tear strip for opening up the carton from a sealed form to form a lid hingedly attached to a base section; and

a liner constructed and arranged for placement within the carton and including a front panel and opposing first and second side sections for fitting the liner within the carton, the first and second side sections including respective first and second side panels having outer surfaces adjacent inner surfaces of the respective first and second carton side walls, each of the first and second liner side sections including a hinged portion and an island portion spaced away from the front panel of the liner, the hinged portion and the island portion of each of the first and second liner side sections being disposed in forcibly displaceable mutual engagement such that opening the container lid exerts a force which disengages the mutual engagement between the hinged portion and the island portion, and reclosing the lid leads to snap re-engagement of the hinged portion and the island portion.

15. The recloseable container of claim 14, wherein the respective first and second liner side panels include respective first and second cut-away portions at the lower edges thereof, each of said first and second cut-away portions being spaced away from the front panel of the liner and being configured in the shape of the associated hinged and island portions.

16. The recloseable container of claim 14, wherein the hinged portion is wider than the island portion so as to form at least one shoulder relative to the island portion.