Easy opening end closure for a container

Details Easy opening end closure for a container Easy opening end closure for a container

1977-08-15

1978-12-19

Hart, Ro E.

Receptacles

Closures

With closure opening arrangements for means

220260, 220265, 220270, 220356, B65D 4132

Patent

active

041302184

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 displaceable 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 displaceable closure. At the same time the forged plastic flows beneath the adjacent edges of the slit to form a tight seal therein.

REFERENCES:
patent: 3184096 (1965-05-01), Cheeley
patent: 3302824 (1967-02-01), Cheeley
patent: 3437227 (1969-04-01), Peyser
patent: 3473692 (1969-10-01), Moller
patent: 3731835 (1973-05-01), Hawkins

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