Mixing valve

Details Mixing valve Mixing valve

1983-07-22

1984-10-09

Tapolcai, William E.

Automatic temperature and humidity regulation

Mixing fluid of dissimilar temperature

Fluid from only one supply is controlled

236DIG2, 236100, G05D 2313

Patent

active

044756844

ABSTRACT:
A water mixing valve which provides for controlled admission of cold water into a hot water stream and which also provides for cold water to be bled into the hot water stream in the event that the mixing valve should fail to operate in the intended manner, so that water flowing from the mixing valve will always have a temperature lower than that of the hot water admitted to the mixing valve. The mixing valve includes a first passage which is connectable in a hot water supply line, a thermostat element located in the first passage, and second and third passages which are connectable to a supply of cold water. A piston-type regulator valve element is located within a cylindrical chamber of the mixing valve and is actuated by the thermostat element to regulate flow of cold water from the second passage to the first passage, and, in the event of failure of the thermostat element, the regulator valve element is biased to a position such that water is admitted to the first passage by way of the third passage.

REFERENCES:
patent: 2270641 (1942-01-01), Ruppert et al.
patent: 2520446 (1950-08-01), Thrush
patent: 2828075 (1958-03-01), Panza et al.
patent: 2855151 (1958-10-01), Lesovsky
patent: 2910242 (1959-10-01), Freismuth et al.
patent: 3128043 (1964-04-01), Feinberg

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