×

Carton and blank with locking top

  • US 5,522,538 A
  • Filed: 01/09/1995
  • Issued: 06/04/1996
  • Est. Priority Date: 01/09/1995
  • Status: Expired due to Fees
First Claim
Patent Images

1. An erectable container capable of being retained in a partially erected condition having a trapezoidal cross-section formed from a single blank of foldable material comprising:

  • (a) front, bottom and rear panels connected to one another along parallel fold lines;

    (b) a pair of opposed rhombic shaped end panels foldably attached to said bottom panel;

    (c) opposed pairs of abbreviated end flaps foldably attached to each of said front and rear panels wherein at least one pair of said opposed abbreviated end flaps is adhered to one of said front or rear panels;

    (d) connector panels integral with and foldably attached between the .end panels and abbreviated end flaps;

    (e) overlapping interior and exterior closure flaps foldably connected respectively to one each of said front and rear panels;

    (f) a locking means between said exterior closure flap and one of said front or rear panels comprising a locking tab foldably attached to the exterior closure flap consisting of a first locking element and a reverse second locking element cut from a portion of said locking tab, and locking slots formed in one of said front or rear panels consisting of a first locking slot and a second reverse locking slot each formed in said front or rear panel to provide a positive double articulated lock for the container in reverse orientation; and

    ,(g) a pair of inset notches formed at each corner of the interior closure flap along the fold line between said interior closure flap and one of said front or rear panels which permits the interior closure flap to be folded downwardly between said rhombic shaped end panels during the erection of the container to keep the container partially erected for filling and serving.

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