Twist-to-remove crown cap with a finger protective gripping surf

Details Twist-to-remove crown cap with a finger protective gripping surf Twist-to-remove crown cap with a finger protective gripping surf

1988-09-23

1990-01-30

Norton, Donald F.

Bottles and jars

Closures

Cap type

B65D 4104

Patent

active

048967815

ABSTRACT:
The present invention relates to a twist-to-remote crown cap for closing a container such as a beer bottle. The crown cap comprises a disk shaped top wall and a depending lateral skirt with long serrations bent against the skirt in a circumferential direction thereof to expose, each, a relatively flat flank surface. The flank surfaces of the serrations define a relatively smooth finger gripping surface preventing injury to fingers during the removal of the cap.

REFERENCES:
patent: 1774727 (1930-09-01), Roehm
patent: 1845421 (1932-02-01), Klist
patent: 1882359 (1930-05-01), Greenhouse
patent: 2198117 (1940-04-01), Kancer
patent: 2361507 (1944-10-01), Sonnenberg
patent: 2390291 (1945-12-01), Blackman
patent: 3232469 (1966-02-01), Piazze
patent: 3253729 (1966-05-01), Virany
patent: 3272267 (1966-09-01), Long
patent: 3514004 (1970-05-01), Hammersmith
patent: 4627548 (1986-12-01), Thompson
patent: 4702383 (1987-10-01), Wender

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