Extrusion cover for containers

Details Extrusion cover for containers Extrusion cover for containers

1980-06-19

1981-11-10

Hall, George T.

Receptacles

Closures

With closure opening arrangements for means

222326, 222541, B65D 1740

Patent

active

042993296

ABSTRACT:
An extrusion cover for containers, which is made of a thin one-piece plate having a circular cutting line thereon, a frusto-conical recess in the central portion thereof defined by the cutting line, small projections on at least one portion of the tapered wall of the frusto-conical recess, and a circular plate engageable with the frusto-conical recess and adapted to push forwardly that portion of the thin plate which is inside the cutting line so as to allow the thin plate to be torn along the cutting line. This extrusion cover can be torn with a small amount of thrusting force but it is rarely opened by accident so that it is perfectly sealed at all times.

REFERENCES:
patent: 3253733 (1966-05-01), Brock
patent: 3815791 (1974-06-01), Clark

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