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Reclosable carton for granular materials

  • US 5,161,734 A
  • Filed: 05/10/1991
  • Issued: 11/10/1992
  • Est. Priority Date: 05/10/1991
  • Status: Expired due to Fees
First Claim
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1. A side-fill, sift-resistant, reclosable carton for granular or powdered materials and having opposed top and bottom walls, opposing front and back walls, and opposing end walls, wherein:

  • (a) each of the end walls comprises front and back closure flaps constituting two main layers attached to each other in face-to-face relation and having a top edge coterminus with the top wall, a bottom closure flap which constitutes a third layer is attached in face-to-face relation to the main layers, and an extension panel from the front wall provides a fourth layer which has a horizontal tear strip thereacross, the fourth layer being attached to the exterior of the other layers below the tear strip;

    (b) the front wall comprises an inner layer having a top edge abutting the top wall and an outer layer, the outer layer having a horizontal tear strip thereacross which is integral with the tear strips of the end walls, forming one continuous tear strip, the inner and outer layers being attached to each other below the tear strip;

    (c) an ear is attached to each of the end walls above the tear strip, the ear being integrally attached to the top wall, and holding the top wall against the top edge of the main layers; and

    (d) a glue flap integrally attached to the top edge of the inner layer of the front wall along substantially its full length, the glue flap comprising a distal attachment portion and a proximal locking portion, the two portions being joined along a full length line of weakness, said distal attachment portion being secured to the inner surface of the outer layer of the front wall above the tear strip.

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