Hot water cutoff safety valve for showers

Details Hot water cutoff safety valve for showers Hot water cutoff safety valve for showers

1983-06-03

1984-11-06

Tapolcai, William E.

Automatic temperature and humidity regulation

Thermostatic

In fluid controlled

137457, 138 46, 236 93R, G05D 2308

Patent

active

044807848

ABSTRACT:
A hot-water safety valve for preventing scalding of children and invalids when cold water supply to a mixing valve for a shower is interrupted, includes a thermostatic cup freely resting on a perforate transverse platform in a supply pipe upstream from a shower nozzle when the water temperature exceeds a predetermined amount the thermostatic cup expands to constrict flow but always leaves a drip to permit flow of cooler water to be sensed and reset or re-open the valve for flow restoration.

REFERENCES:
patent: 2109628 (1938-03-01), Alban et al.
patent: 2673687 (1954-03-01), Alban et al.
patent: 2763433 (1956-09-01), Hill
patent: 2910093 (1959-10-01), Dahl
patent: 3313312 (1967-04-01), Meese
patent: 3659624 (1972-05-01), Kelly
patent: 3690336 (1972-09-01), Drum
patent: 3720220 (1973-03-01), McMath
patent: 3895646 (1975-07-01), Howat
patent: 3930613 (1976-01-01), Place
patent: 4143812 (1979-03-01), Fortune
patent: 4262844 (1981-04-01), Sekiya

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