Anti-freezing device

Details Anti-freezing device Anti-freezing device

1989-05-12

1990-11-06

Walton, George L.

Fluid handling

Freeze condition responsive safety systems

With freeze waste

137 62, 137338, 236 93R, 237 80, F16K 3114, E03B 712

Patent

active

049677802

ABSTRACT:
An anti-freezing device for use in water supply conduits, which includes a driving chamber for imparting a drive to a main valve which is moved by the volumetric expansion due to the freezing of water therein so that the main valve is separated from a valve seat thereby to discharge water in the conduit outside therethrough. The flowing movement of water in the conduit prevents it from freezing.

REFERENCES:
patent: 1473562 (1923-11-01), Jonsson
patent: 3380464 (1968-04-01), Arterbury et al.
patent: 3511253 (1970-05-01), Litov
patent: 4314580 (1982-02-01), Steinwand
patent: 4784173 (1988-11-01), Carney

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