Plastic closure with compression molded liner

Details Plastic closure with compression molded liner Plastic closure with compression molded liner

1997-05-06

1999-07-20

Garbe, Stephen P.

Bottles and jars

Closures

Cap type

B65D 5306

Patent

active

059245867

ABSTRACT:
A plastic beverage closure including a base wall, a peripheral skirt and a plurality of threads on the inner surface of the skirt for engagement with the threads of a container which may be made of glass or plastic. The plastic closure includes a compression molded seal extending about the periphery of the inner surface of the base wall and the juncture of the base wall to the peripheral skirt. The closure includes a central axially thickened portion; a channel surrounding the thickened portion and extending radially to an annular radially thickened portion on the skirt at the juncture with the base wall. A concave surface extends from the base of the channel and merges with the surface of the annular portion. A compression molded liner is provided on the thickened portion, channel and concave surface of the closure and defines a planar sealing surface of contact with the end surface of the finish of a container and an arcuate surface for engaging the arcuate surface of a container. In other forms, the closure can be used as a closure for non-beverage products.

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patent: 5050753 (1991-09-01), Trump et al.
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patent: 5265747 (1993-11-01), Gregory et al.
patent: 5285913 (1994-02-01), Morton
patent: 5462187 (1995-10-01), Gregory et al.

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