Tamper proof ring for threaded closures

Details Tamper proof ring for threaded closures Tamper proof ring for threaded closures

1991-06-14

1992-04-28

Marcus, Stephen

Bottles and jars

Closures

Frangible member or portion

215253, B65D 4134

Patent

active

051079984

ABSTRACT:
An improved tamper proof ring closure construction for use with threaded bottle finishes normally used for containing carbonated beverages or other contents which are under pressure. The ring includes hingedly connected hook-like members integrally molded to the inner surface of the ring. The ring includes an inwardly directed lower flange which supports the hook-like members against movement past a predetermined point when the closure is unthreaded. As the closure is unthreaded, the usual frangible bridge is at least partially ruptured, and continued pressure of the hook-like pressure upon the inwardly directed flange results in rupture of the body of the ring, so that it may be completely removed, thereby facilitating recycling of the container.

REFERENCES:
patent: 4526282 (1985-07-01), Dutt et al.
patent: 4890754 (1990-01-01), Dorn et al.
patent: 4913300 (1990-04-01), Wiedmer et al.
patent: 4957211 (1990-09-01), Ekkert et al.
patent: 4978017 (1990-12-01), McBride

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