Antibackoff closure

Details Antibackoff closure Antibackoff closure

1977-03-14

1978-06-06

Hart, Ro E.

Bottles and jars

Closures

Frangible member or portion

215253, 215232, B65D 4162

Patent

active

040930939

ABSTRACT:
A container for storing and dispensing sterile liquids is provided with a hermetically sealed overcap. An outer ring fits over the overcap and the overcap and outer ring have interfitting threads. The outer ring defines a jacking member for moving the overcap axially upwardly on a bottle neck when the outer ring is rotated downwardly. Antibackoff means are provided for axially interlocking the outer ring and overcap, limiting upward rotational displacement of the outer ring with respect to the overcap.

REFERENCES:
patent: 2950832 (1960-08-01), Brune
patent: 3871545 (1975-03-01), Bereziar
patent: 3923179 (1975-12-01), Choksi
patent: 3923182 (1975-12-01), Choksi
patent: 3923183 (1975-12-01), Choksi
patent: 3923184 (1975-12-01), Choksi
patent: 3923185 (1975-12-01), Choksi
patent: 3937348 (1976-02-01), Guala
patent: 3945525 (1976-03-01), Jones

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