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Closure for clamshell package

  • US 8,146,743 B2
  • Filed: 04/08/2009
  • Issued: 04/03/2012
  • Est. Priority Date: 04/08/2009
  • Status: Active Grant
First Claim
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1. A cardboard package comprising:

  • a first exterior wall;

    a second exterior wall located to meet the first exterior wall at a first corner; and

    a punch-in device located in the vicinity of the first corner, the punch-in device comprising;

    a first perforation extending across the first corner and at an angle to the first corner,a second perforation extending across the first corner and at an angle to the first corner,a first fold line generally parallel to the first corner and extending at least from the first perforation to the second perforation,a second fold line generally parallel to the first corner and extending at least from the first perforation to the second perforation,a third fold line generally parallel to the first corner and extending at least from the first perforation to the second perforation, anda fourth fold line generally parallel to the first corner and extending at least from the first perforation to the second perforation;

    wherein;

    the cardboard package is moveable between an open position and a closed position;

    when the cardboard package is in the closed position the first exterior wall is exposed to the outside at least in the vicinity of the first corner; and

    when the cardboard package is in the closed position the second exterior wall is exposed to the outside at least in the vicinity of the first corner.

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