Bottle closure

Details Bottle closure Bottle closure

1985-02-22

1985-11-05

Norton, Donald F.

Bottles and jars

Closures

Frangible member or portion

B65D 4134

Patent

active

045508453

ABSTRACT:
A bottle closure, designed to make apparent any previous opening, consists of a cap, a collar extending coaxially in elongation of the cap, a line of weakness between the cap and the collar. A plurality of tabs project inwardly from the collar and are arranged close to the line of weakness and designed to engage in a circumferential recess which is made on the inside of the cap in proximity to the line of weakness, serving as a bridge across the line of weakness. When the cap is removed from the collar the tabs snap out of the recess and cannot re-enter it, so that a fissure is visible between the cap and the collar, showing that the cap has been removed.

REFERENCES:
patent: 3650428 (1972-03-01), Miller
patent: 4458817 (1984-07-01), Guala
patent: 4488655 (1984-12-01), Itsubo et al.
patent: 4494664 (1985-01-01), Guala

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