Easy opening end closure for a container and method of making th

Details Easy opening end closure for a container and method of making th Easy opening end closure for a container and method of making th

1973-05-29

1976-07-06

Hart, Ro E.

Receptacles

Closures

With closure opening arrangements for means

220269, B65D 4102

Patent

active

039677494

ABSTRACT:
The easy opening end closure for attachment to a can body. The end closure includes a plastic pull tab having a closure tab sealed in a slit which defines a displacable closure.
The pull tab is attached by forging a plastic strip over a lid in a manner such that the plastic is caused to flow and force the metal panel against a cutting edge to form a slit defining a displacable closure. At the same time the forged plastic flows beneath the adjacent edges of the slit to form a tight seal therein.

REFERENCES:
patent: 2147004 (1939-02-01), Wark
patent: 2723778 (1955-11-01), Rabak
patent: 3160325 (1964-12-01), Stull
patent: 3184096 (1965-05-01), Cheeley
patent: 3251515 (1966-05-01), Henchert
patent: 3302824 (1967-02-01), Cheeley
patent: 3434620 (1969-03-01), Laurizio
patent: 3437227 (1969-04-01), Peyser
patent: 3473692 (1969-10-01), Moller
patent: 3662914 (1972-05-01), Slade
patent: 3731835 (1973-05-01), Hawkins

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