Pasteurizable container closure

Bottles and jars – Closures – Cap type

Patent

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Details

215 1C, B21D 3900

Patent

active

048135577

ABSTRACT:
A closure for bottles is disclosed which includes an internal radius support disk or cylinder for positioning within the bottle mouth to enable the bottle to resist radial inward deformation when subjected to pasteurization or other post-bottling heat treatment. The closure can be formed by coining a conventional aluminum roll-on cap blank using a pressure block having a central land projectable into the mouth of the bottle to form the support disk or cylinder from the top of the cap blank.

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