Containers having an inflatable tubular seal

Details Containers having an inflatable tubular seal Containers having an inflatable tubular seal

1978-02-02

1979-02-20

Hall, George T.

Receptacles

Closures

Having inflatable gasket or packing

220 15, 150 05, 206600, B65D 5300

Patent

active

041402375

ABSTRACT:
A container of the kind having a cover, preferably an impermeable flexible cover, sealed to a base, an improved seal is provided comprising an endless slot or groove in the base into which the periphery of the cover fits adjacent a removable tube holder of resilient material carrying one or more inflatable sealing tubes, each extending around the slot or groove adjacent the cover. Each sealing tube, when inflated, protrudes out of an aperture in the holder to seal against the cover and, if the cover is flexible, to force it into sealing engagement with a wall of the slot or groove. The holder serves to locate the tubes, thereby enabling two or more tubes to be located at different depths in the slot or groove.

REFERENCES:
patent: 3221921 (1965-12-01), Silverman
patent: 3850214 (1974-11-01), Hickey

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