Storage tank seal

Details Storage tank seal Storage tank seal

1976-06-21

1978-03-21

Marcus, Stephen

Receptacles

Closures

Floating closure

220 85B, B65D 872

Patent

active

040798569

ABSTRACT:
Liquid storage tank uses a collapsible bag of impermeable material which floats on the stored liquid and moves with the liquid, thus giving reduced vapor pressure above the liquid. In use, the collapsible bag has a tapered form so as to reduce the possibility of its contact with the tank side walls and hence reduce the sticking tendency of the bag to the walls.

REFERENCES:
patent: 1597399 (1926-08-01), Wilson
patent: 2269568 (1942-01-01), Wilkin
patent: 2578090 (1951-12-01), Plummer
patent: 2670100 (1954-02-01), Fino et al.
patent: 3028040 (1962-04-01), Woodard et al.
patent: 3355271 (1967-11-01), Soan et al.

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