Easy-open ecology crown cap

Details Easy-open ecology crown cap Easy-open ecology crown cap

1975-05-05

1976-06-01

Norton, Donald F.

Bottles and jars

Closures

Frangible member or portion

B65D 4142

Patent

active

039602877

ABSTRACT:
The depressed dome portion of the cap is scored part way through the thickness of the material thereof and immediately adjacent the inner periphery of the overlying ring portion. The score forms a continuous line extending nearly completely around the dome portion but interrupted for a short distance to provide an unscored hinge portion. The depth of the score is sufficient to allow downward finger pressure on the dome portion to break the material thereof along the score line and permit the dome portion of the cap to be bent downwardly about the hinge portion and into the neck of the bottle to which the cap is attached.

REFERENCES:
patent: 1723790 (1929-08-01), Kirkland
patent: 1866841 (1932-07-01), Crookshank
patent: 2102440 (1937-12-01), Sebell
patent: 3779417 (1973-12-01), Klein
patent: 3794206 (1974-02-01), Deline
patent: 3812992 (1974-05-01), Wolf
patent: 3880316 (1975-04-01), Martella

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