Containers having a flexible cover sealable to a rigid base

Details Containers having a flexible cover sealable to a rigid base Containers having a flexible cover sealable to a rigid base

1980-05-06

1981-12-22

Ward, Jr., Robert S.

Receptacles

Closures

Having inflatable gasket or packing

277 343, 150 05, 150 52R, 206600, B65D 5300

Patent

active

043066658

ABSTRACT:
A container of the kind having a rigid base to which a flexible cover is sealed by means of an inflatable sealing tube is formed with a rigid support plate as part of the base, the support plate being carried on a support member having an upwardly-extending pressure wall surrounding and facing inwardly towards the edge of the plate. The pressure wall extends upwardly from below the level of the edge of the plate to above that level and the sealing tube is located between the edge of the plate and the pressure wall so that when the tube is inflated the edge of the plate forms a localized pressure region along the length of the tube.

REFERENCES:
patent: 3221921 (1965-12-01), Silverman
patent: 3240038 (1966-03-01), Schwegler
patent: 3501868 (1970-03-01), Ganzinotti
patent: 4114668 (1978-09-01), Hickey
patent: 4121732 (1978-10-01), Hickey
patent: 4140237 (1979-02-01), Hickey

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