Single-use sheet plastic closure for application to rimmed conta

Details Single-use sheet plastic closure for application to rimmed conta Single-use sheet plastic closure for application to rimmed conta

1982-03-05

1982-12-07

Hall, George T.

Receptacles

Closures

With closure opening arrangements for means

220306, B65D 1734

Patent

active

043622526

ABSTRACT:
A single-use sheet plastic closure is applied to a comestible-storing rimmed container of a similar shape. The closure has a crown and a continuous skirt downwardly dependent from the periphery of the crown. The skirt has at least one lug to mechanically lock the closure to the container. At the lower edge of the skirt is a pull tab operable for destroying the integrity of the locking lug when said tab is bent back and pulled. The pull tab extends angularly outwardly from the skirt to form a handle access portion an edge of which meets the skirt at a weak zone. When the pull tab is bent back and pulled, a tensile force is applied to the weak zone which will start a tear that progresses from the weak zone through the locking lug thus destroying the integrity of the mechanical lock and permitting the closure to be removed from the container and discarded.

REFERENCES:
patent: 4103803 (1978-08-01), Irvine
patent: 4298133 (1981-11-01), Davis

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