Gasket retaining cap member and method of forming same

Details Gasket retaining cap member and method of forming same Gasket retaining cap member and method of forming same

1987-10-21

1989-04-25

Norton, Donald F.

Bottles and jars

Closures

Cap type

215352, 264249, B65D 5302

Patent

active

048239704

ABSTRACT:
A gasket retaining cap member, and method of forming same, comprising an integral cap member having a downwardly extending annular flange forming an exterior cap wall and a downwardly extending annular retention wall spaced radially inward of the cap wall thereby forming a ring-shaped well therebetween into which a gasket member is placed and thereafter held securely in position by deformation of the retention wall. The method of forming the gasket retaining cap member comprises positioning the cap member, with the gasket placed inside, within a heat staking press which operates to stake deformation into the upper surface of the retention wall thereby causing the retention wall to partially overlie the gasket member and hold it securely in place.

REFERENCES:
patent: 2087969 (1937-07-01), Gookin
patent: 2465144 (1949-03-01), Wyatt
patent: 3435976 (1969-04-01), Owens
patent: 3754731 (1973-08-01), Mackal et al.
patent: 4479915 (1984-10-01), Tsubouchi et al.
patent: 4648520 (1987-03-01), Stull

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