Container having seal means

Details Container having seal means Container having seal means

1978-02-02

1978-10-24

Hall, George T.

Receptacles

Closures

Having inflatable gasket or packing

220 15, 206597, 206600, B65D 3900, B65D 4100, B65D 312

Patent

active

041217322

ABSTRACT:
In a container of the kind having an impermeable cover which is sealed to a base, air then being evacuated from the region between the cover and the base, an improved seal is provided for use with a rigid cover. The periphery of the cover fits into an endless groove or channel on the base, a temporary seal is then effected by inflating an endless tube or tubes in the groove and air is then evacuated from within the container so that the cover is drawn down onto an elastomeric strip in the base of the groove to effect a further seal which may hold even if pressure falls in the inflated tube or tubes.

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

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