Storage container closure

Details Storage container closure Storage container closure

1984-08-29

1985-08-27

Hall, George T.

Receptacles

Closures

Externally adjustable plug or gasket

222563, 220305, B65D 5300

Patent

active

045373256

ABSTRACT:
For containers with circular openings, a closure for selectively loosely covering or tightly sealing the container. A seal member has an elastically contractible peripheral bead. The throat opening of the container decreases in diameter in two steps, forming two annular ledges and a wall portion therebetween. The peripheral bead may rest loosely upon the first, larger ledge, and, when contracted, may be seated tightly upon the second, smaller ledge.

REFERENCES:
patent: 4387825 (1983-06-01), Parent
patent: 4390109 (1983-06-01), Schulein et al.

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