Closure cap and container

Details Closure cap and container Closure cap and container

1976-06-14

1977-12-06

Norton, Donald E.

Bottles and jars

Closures

With pressure-responsive seal

215344, 215DIG1, B65D 5300

Patent

active

040612406

ABSTRACT:
A closure for a container characterized by a crown and a depending skirt, retaining means provided on the skirt adapted to cooperate with corresponding means on a container to retain the closure about a neck of the container defining a dispensing opening thereof, a flexible annular sealing ring extending from an internal surface of the closure adapted to engage in sealing relationship with the container neck, a sealing ring support adapted to assist said ring into sealing engagement with the container and means for permitting pressure of the container contents to act upon the sealing ring to urge the ring into sealing engagement with the neck of the container to which the closure is applied.

REFERENCES:
patent: 3142402 (1964-07-01), Fox
patent: 3145869 (1964-08-01), Ritzenhoff
patent: 3203571 (1965-08-01), Plunkett
patent: 3727784 (1973-04-01), Sargent

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