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Reducible carton

  • US 3,137,437 A
  • Filed: 03/05/1963
  • Issued: 06/16/1964
  • Est. Priority Date: 03/05/1963
  • Status: Expired due to Term
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3. A REDUCIBLE CARTON FORMED FROM A SINGLE BLANK OF FLEXIBLE MATERIAL, COMPRISING A TUBULAR LINER SECTION, AN INTEGRAL TUBULAR BODY SECTION FREELY WOUND UPON AND CO-EXTENSIVE WITH SAID LINER SECTION, MEANS SEPARATELY SEALING SAID LINER AND BODY SECTIONS IN TUBULAR FORM WITH THEIR ADJACENT SURFACES IN FREE CONTACT, TOP AND BOTTOM CLOSURE MEAN INTEGRAL WITH SAID BODY SECTION AND FREELY OVERLYING THE RESPECTIVE ENDS OF SAID LINER SECTION, A FIRST SEVERABLE TEAR STRIP ENCOMPASSING SAID BODY SECTION IN DOWNWARDLY SPACED RELATION TO SAID TOP CLOSURE MEANS, ADAPTED TO SEPARATE THE UPPER EDGE OF SAID BODY SECTION AND ITS CLOSURE MEANS IN THE FORM OF AN INTEGRAL, REMOVABLE AND REPLACEABLE COVER, THE ADJACENT UPPER EDGE OF SAID LINER SECTION REMAINING INTACT AFTER REMOVAL OF SAID TEAR STRIP TO PROVIDE AN UPSTANDING, IN WARDLY OFFSET LIP TO ACCOMMODATE SAID COVER, A SECOND SEVERABLE TEAR STRIP SPACED DOWNWARDLY FROM SAID FIRSTNAMED TEAR STRIP, RUNNING PARALLEL AND CO-EXTENSIVE THERWITH AROUND SAID BODY, AND A LINER TEAR STRIP EXTENSION INTEGRAL WITH SAID SECOND TEAR STRIP AND RUNNING PARALLEL THEREWITH AROUND SAID LINER PORTION, THE LOWER LONGITUDINAL BOUNDARY OF SAID LINER TEAR STRIP EXTENSION BEING UPWARDLY OFFSET WITH RESPECT TO THAT OF SAID SECOND TEAR STRIP AND LYING INTERMEDIATE THE LONGITUDINAL BOUNDARIES OF SAID SECOND TEAR STRIP, WHEREBY WHEN SAID SECOND TEAR STRIP AND LINER TEAR STRIP ARE SEQUENTIALLY REMOVED, A SECOND UPSTANDING, INWARDLY OFFSET LIP IS PROVIDED ON THE UPPER EDGE OF SAID LINER TO ACCOMMODATE THE REPLACEMENT OF SAID COVER.

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