Flood valve

Details Flood valve Flood valve

1979-08-06

1981-05-19

Schwadron, Martin P.

Fluid handling

Destructible or deformable element controlled

Heat destructible or fusible

137 76, F16K 1740

Patent

active

042678544

ABSTRACT:
A flood valve adapted to close an opening through a barrier wall separating a fluid from a space, the valve having a plastic body with a bore therethrough, a piston slidable in the bore, a heating element carried by the body and having a section extending across the bore to restrain the piston against movement out of the bore, and a spring urging the piston against the restraining section of the heating element, the piston normally sealing the bore and the heating element, when energized, burning through the plastic body material to release the piston for admission of fluid through the bore to the space.

REFERENCES:
patent: 824935 (1906-07-01), Jenczewsky
patent: 2620815 (1952-12-01), Margraf et al.
patent: 2998018 (1961-08-01), Beck et al.
patent: 3008479 (1961-11-01), Mancusi
patent: 4046157 (1977-09-01), Cazalaa et al.
patent: 4164953 (1979-08-01), Naab et al.

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