Plastic closure system with an annular rib gasket retention mean

Details Plastic closure system with an annular rib gasket retention mean Plastic closure system with an annular rib gasket retention mean

1980-10-17

1983-01-04

Norton, Donald F.

Bottles and jars

Closures

Cap type

215352, B65D 4104

Patent

active

043669131

ABSTRACT:
A closure system for a container having a neck with a cap support flange extending radially outwardly around the neck. A resilient gasket encircles the neck and overlies the cap support flange, to be compressed by a closure cap which is attached to the neck for sealing. Annular rib means project from the support flange against the gasket to retain the gasket in its sealing position. A method is also described for the manufacturing of such a closure system.

REFERENCES:
patent: 462154 (1891-10-01), Palmer
patent: 774014 (1904-11-01), Wilson
patent: 997505 (1911-07-01), Hipt
patent: 1707439 (1929-04-01), Kivlan
patent: 3513829 (1970-05-01), Deuschle et al.
patent: 3721726 (1973-03-01), Schwartzman
patent: 4177905 (1979-12-01), Winchell et al.

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