×

Container end closure arrangement

  • US 5,692,672 A
  • Filed: 09/03/1996
  • Issued: 12/02/1997
  • Est. Priority Date: 09/03/1996
  • Status: Expired due to Fees
First Claim
Patent Images

1. An end closure arrangement for a container, formed from a unitary blank of foldable paperboard and having pairs of opposed major and minor side wall panels foldably joined to each other to form a tubular body structure, said arrangement comprising:

  • (a) a pair of elongated, generally rectangular, outer closure flaps each including;

    (i) an inner side edge foldably joined to an adjacent end edge of one of said major side wall panels along a first fold line;

    (ii) a free outer side edge spaced from and parallel to said inner side edge;

    (iii) said side edges having corresponding ends interconnected by end edges extending normal to and between said side edges;

    (b) said outer closure flaps end edges interconnected by a pair of bellows members, each including;

    (i) a generally triangular center panel element having a first edge foldably joined to an adjacent end edge of a related one of said minor side wall panels along a second fold line, and having a pair of second edges extending diagonally toward each other from opposite ends of said second fold line and converging at a location spaced from and aligned with a midpoint of said second fold line;

    (ii) a pair of generally triangular side panel elements having first side edges foldably joined to adjacent end edges of related outer closure flaps along third fold lines, having free second edges extending from and normal to said first edges to said location, and having third edges extending diagonally between remote ends of said first and second edges;

    (c) each of said side panel elements having end portions of each of its said third edges foldably joined to an adjacent one of said center panel elements second edges, along a pair of fourth fold lines spaced from each other, and having a central portion of each of its said third edges separated from an adjacent one of said center panel elements second edges by a generally U-shaped cut having a straight central portion and a pair of end portions extending from and normal to opposed ends of said central portion, whereby when said outer closure flaps are moved to a closed position said container end will remain in a closed position, without automatically springing to an open position, with said bellows member side panel elements interposed between said center panel element and said outer closure flaps.

View all claims
  • 6 Assignments
Timeline View
Assignment View
    ×
    ×