Closure with linerless seal

Details Closure with linerless seal Closure with linerless seal

1992-02-20

1992-11-10

Shoap, Allan N.

Bottles and jars

Closures

Cap type

215270, 215DIG1, B65D 5300

Patent

active

051617072

ABSTRACT:
A linerless closure which provides an effective seal against oxygen penetration and moisture evaporation includes a cap with an inner annular member defining an annular outwardly directed sealing edge which forms a line seal with the inner cylindrical surface of a container wall and an outer annular member defining an annular inwardly directed sealing edge which seals against the outer cylindrical surface of a container wall.

REFERENCES:
patent: 3203571 (1965-08-01), Plunkett
patent: 3441161 (1969-04-01), Van Baarn
patent: 3482725 (1969-12-01), Exton
patent: 3990598 (1976-11-01), Zapp et al.
patent: 4090631 (1978-05-01), Grussen
patent: 4206852 (1980-06-01), Dunn et al.
patent: 4322012 (1982-03-01), Conti
patent: 4566603 (1986-01-01), Moore
patent: 4574966 (1986-03-01), Sandhaus

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