Closure with plastisol liner defining a retaining bead

Details Closure with plastisol liner defining a retaining bead Closure with plastisol liner defining a retaining bead

1983-02-01

1984-05-15

Norton, Donald F.

Bottles and jars

Closures

Cap type

264 466, 264268, B65D 5300

Patent

active

044483201

ABSTRACT:
This relates to a closure utilizing a liner which is formed of plastisol or like material which puffs or expands upon curing after the liner has been applied. By providing the liner with a skirt portion and by increasing the radial thickness of a lower part of the liner skirt portion through a shaping of the skirt of the closure shell, the cured liner skirt portion will expand differentially and form, on the inner surface of the liner skirt portion, a bead which will snap over and lock beneath a bead on a container neck finish to lock the closure in a container sealing position. The closure may be removed and reapplied to reseal the container.

REFERENCES:
patent: 2817453 (1957-12-01), Stover
patent: 3371813 (1968-03-01), Owen et al.

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