Container with thermally fused double-seamed or crimp-seamed metal end
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United States of America Patent
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Jun 5, 2018
Issued Date -
N/A
app pub date -
Sep 7, 2017
filing date -
Sep 2, 2011
priority date (Note) -
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Abstract
A container includes a metal end applied and sealed to an all-thermoplastic container body by a crimp-seaming or double-seaming operation. The metal end has an outer curl joined to a chuck wall that extends down from the curl. One or both of the inner surface of the container side wall and the outer surface of the chuck wall has/have a heat-sealable material thereon. The metal end is crimp-seamed or double-seamed to the container body and the heat-sealable material(s) are heated to soften or melt such that the interface between the chuck wall and the side wall is fused. The interface is oriented along a direction relative to internal pressure exerted on the metal end such that stress on the interface caused by the internal pressure is predominantly shear stress.
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