Hermetic, heat-sealed closure

Details Hermetic, heat-sealed closure Hermetic, heat-sealed closure

B - Operations, Transporting

65

B

18/963

B65B 51/20 (2006.01) B29C 65/00 (2006.01) B29C 65/10 (2006.01) B29C 65/78 (2006.01) B65B 7/16 (2006.01)

Patent

CA 1056567

HERMETIC, HEAT-SEALED CLOSURE Abstract of the Disclosure A process for providing a hermetic, heat-sealed closure for a filled, thermoplastic or thermoplastic coated container by the steps of: providing a continuous web of a thermoplastic material, having a temperature within the drooping and heat sealing ranges of the thermoplastic mate- rial, draped over the mouth of the filled container; urging the web inwardly of the mouth of the container so that the web overlies interior and exterior, thermoplastic surfaces of the mouth of the container; and pressing the web against the interior and exterior, thermoplastic surfaces of the mouth of the container to form a heat-sealed bond, by directing a stream of a gas against an exposed surface of the web overlying a thermoplastic surface of the mouth of the container.

226402

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