Combination crown twist-off closure capp

Details Combination crown twist-off closure capp Combination crown twist-off closure capp

1976-10-26

1977-10-25

Norton, Donald F.

Bottles and jars

Closures

Frangible member or portion

215253, 215328, B65D 4134

Patent

active

040552667

ABSTRACT:
The present invention provides a closure cap of the threaded crown type, which closure cap includes one or more flanges depending from a skirt of the closure cap, the flange being adapted to engage a locking shoulder on the container, the flange having at least one weakening line therein, such that the flange either ruptures or spreads on removal of the closure flaring outwardly due to a camming action of the locking shoulder.

REFERENCES:
patent: 3280999 (1966-10-01), Warmer
patent: 3410435 (1968-11-01), Kopczynski
patent: 3606062 (1971-09-01), Frisch
patent: 3648874 (1972-03-01), Moller
patent: 3812991 (1974-05-01), Wurl
patent: 3861551 (1975-01-01), Hannon
patent: 3910443 (1975-10-01), Hadley

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