Closure and container neck structure therefor

Details Closure and container neck structure therefor Closure and container neck structure therefor

1981-12-02

1982-12-07

Hall, George T.

Receptacles

Closures

Removable closure retained by ductile in situ deformation

222569, 222570, B65D 3900

Patent

active

043622542

ABSTRACT:
This relates to a neck structure on a domed container end for receiving a thermoplastic material closure. It particularly relates to containers having very thin walls on the order of 6-9 mils and wherein the container is formed of a metal having a grain which generally defines a fold line. In order to avoid undue deformation of the lower part of the usual ring which receives the closure body, the domed end immediately adjacent an encircling ring is provided with an upstanding bead which is shock absorbent and functions resiliently to reinforce the lower part of the ring and to restore it to its original configuration after the body of the closure has been pressed through the ring. Further, the closure is provided with a depending skirt which is circumferentially aligned with the bead and slightly axially spaced therefrom so that when an undue load is placed on the closure, that load may be primarily transmitted, after initial deflection of the neck ring, to the domed end through the closure skirt and the bead. This abstract forms no part of the specification of this application and is not to be construed as limiting the claims of the application.

REFERENCES:
patent: 2834521 (1958-05-01), Nyden
patent: 3263724 (1966-08-01), Mojonnier et al.
patent: 4327842 (1982-05-01), Walter
patent: 4328906 (1982-05-01), Walter

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