Freeze protection valve assembly

Details Freeze protection valve assembly Freeze protection valve assembly

1983-01-17

1984-06-26

Walton, George L.

Fluid handling

Freeze condition responsive safety systems

Low temperature responsive drains

237 80, 251 77, E03B 712

Patent

active

044560249

ABSTRACT:
This invention is a freeze protection valve assembly for preventing the freezing of water in pipes of residential and the like water systems. The valve is positioned in a reservoir containing water of the water system. If the water temperature falls below a predetermined minimum, the valve opens discharging water from the system at the same time bringing into the system the warmer waters from the underground supply. Since the valve is activated by the temperature of the water itself, water waste is minimized.

REFERENCES:
patent: 1143762 (1915-06-01), Hooks
patent: 1268648 (1918-06-01), Van Meter
patent: 1338469 (1920-04-01), Waage et al.
patent: 1554344 (1925-09-01), Haapanen
patent: 1558276 (1925-10-01), Peterson
patent: 1849491 (1932-03-01), Kelley
patent: 2060994 (1936-11-01), Kindervater
patent: 3369556 (1968-02-01), Allderdice
patent: 3618625 (1971-11-01), Walters

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