Nested container package

• US 5,779,135 A
• Filed: 11/06/1996
• Issued: 07/14/1998
• Est. Priority Date: 11/06/1996
• Status: Expired due to Fees

• Current Assignee: International Paper Company
• Original Assignee: International Paper Company
• Inventors: Richardson, Paul D.
• Primary Examiner(s): Pollard, Steven M.
• Application Number:
  US08/744,636
• Time in Patent Office: 615 Days
• Field of Search: 229/155, 229/122.1, 229/132, 229/169, 221/305, 221/310, 206/499
• US Class Current: 229/155
• CPC Class Codes: B65D 5/2057 Inter-engaging self-locking flaps B65D5/4254 takes precedence
• CPC Class Codes: B65D 5/4204 Inspection openings or windows

Abstract

A package for a plurality of thin walled, nested and stacked thin walled plastic tub containers and their tops. A paperboard carton is provided with an opening in its bottom panel through which the lower part of the nested stack of tubs extends. In use, the consumer opens two main roof panels, removes the desired number of tubs and tops, then reinserts the remaining nested tubs and tops back into the carton. The consumer then fastens the free ends of the two roof panels together by means of a tongue and slit latching arrangement. The two roof panels are initially held together by adhesive, the adhesive force being broken upon initial opening of the carton roof.

Claims

1. A package including a plurality of nested and stacked containers and a paperboard carton, said carton fashioned from a unitary blank of paperboard, said carton including two opposite main roof panels, two opposite tuck panels, side wall panels, and a bottom panel, said roof and tuck panels carried by respective ones of said side panels, said two main roof panels each having respective free edges which overlap to thereby close said carton, one of said two main roof panels being the uppermost of said two main roof panels and the other being the lowermost of said two main roof panels, an opening in said bottom panel, each of said containers of said nested stack having a flange, said nested stack of containers extending partially through said bottom panel opening, said flanges of said nested stack located above said bottom panel, said stack having a lowermost container whose said flange rests on said bottom panel, said two main roof panel free edges having respective latch elements to thereby enable latching together said roof panels in substantial coplanar relationship to each other, said tuck panels each located beneath said two main roof panels, said tuck panels each having an adhesive spot on a respective upper surface thereof, said adhesive spots each being in contact with a respective lower surface portion of said uppermost main roof panel, whereby initial opening of said main roof and tuck panels is effected by pulling upwardly on said uppermost main roof panel to overcome the force of said adhesive spots, and whereby subsequent refolding of said roof panels is effected by securing said latch elements together.

2. The package of claim 1 wherein said latch elements are defined by a tongue on said free edge of said uppermost main roof panel and a slit on said free edge of said lowermost main roof panel.

3. The package of claim 1 wherein said lowermost main roof panel free edge includes a zone of reduced length, said reduced length zone being of lesser length than the distance between respective said adhesive spots on respective said tuck panels.