Non-detachable ring pull opening device for beverage cans

Details Non-detachable ring pull opening device for beverage cans Non-detachable ring pull opening device for beverage cans

1980-10-16

1982-04-20

Hall, George T.

Receptacles

Closures

With closure opening arrangements for means

220270, B65D 1734

Patent

active

043254900

ABSTRACT:
An easy opening container panel wherein a removable panel portion is primarily defined by a line of weakness or a score line. The line of weakness has a predetermined starting portion which is defined by a fracture in the residual of the container panel. The fracturing of the residual as opposed to a shearing thereof has the advantages of the elimination of the rapidly dulling lance required to effect the usual puncturing and at the same time the jagged edges resulting from the fracturing provide a mechanical interlock so that there is only a minimal weakening of the container panel over and above that provided by the score line.

REFERENCES:
patent: 3291336 (1966-12-01), Fraze
patent: 3365095 (1968-01-01), Lipske
patent: 4031836 (1977-06-01), Grise et al.
patent: 4189060 (1980-02-01), Trotman
patent: 4192244 (1980-03-01), Kelley et al.

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