Special receptacle or package – With pallet feature – Knockdown or collapsible type
Patent
1987-04-10
1988-07-12
Marcus, Stephen
Special receptacle or package
With pallet feature
Knockdown or collapsible type
2066212, 22912542, B65D 570
Patent
active
047564261
ABSTRACT:
A gable-top thermoplastic coated container with controllably enhanced sealing and opening characteristics includes at least one stiffening fillet attached to the gable rib panels and/or roof rib panels which form the spout. The fillet comprises a thin strip of stiff material coated with a layer of adhesive, and is bonded to the gable rib or roof rib panels. The strip is resistant to the thermal container-sealing process, and extends along a major portion of the panel length to increase the force which may be transmitted to the tip of the spout where the gable rib panels are adjoined, and prevent buckling of the spout panels. An adhesive web is delaminably bonded with a controlled release adhesive to the opposite surface of the strip, and is bonded to the other one of the gable rib panels and roof rib panels by the container sealing process. Delamination from the leakproof or hermetically sealed condition occurs at the interface between the strip and the delaminable adhesive, and is accomplished with a low opening force. The strip provides additional stiffness to the spout panels, enabling relatively high forces to be transferred to the spout tip where the opening forces act to open the container spout. The spout may be opened readily without significant tearing or delamination of the spout panels.
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Elkins Gary E.
Marcus Stephen
Minnesota Mining and Manufacturing Company
Schultz Leland D.
Sell Donald M.
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