Temperature-sensitive safety valve assembly

Details Temperature-sensitive safety valve assembly Temperature-sensitive safety valve assembly

1996-04-17

1997-07-01

Tapolcai, William E.

Automatic temperature and humidity regulation

Thermostatic

In fluid controlled

236100, 236DIG2, G05D 2312

Patent

active

056428596

ABSTRACT:
A temperature sensitive safety valve assembly includes a housing for mounting at a faucet outlet and a safety valve element consisting of a rigid cap and an elastic bellows containing a body of temperature sensitive material. Below a predetermined temperature, the bellows has a first condition permitting flow of water towards the faucet outlet. Above the predetermined temperature, the bellows has a second condition restricting flow of water. The bellows also has a third condition, actuated by loss of at least a portion of the body of temperature sensitive material, in which a seal surface of the cap engages with an opposed seat surface of the housing to restrict flow of water towards the faucet outlet.

REFERENCES:
patent: 2902222 (1959-09-01), Noakes
patent: 3038664 (1962-06-01), Kingsley
patent: 3263926 (1966-08-01), Couffer et al.
patent: 4180208 (1979-12-01), Obermaier
patent: 4981261 (1991-01-01), Bergmann et al.
patent: 5024378 (1991-06-01), Bergmann et al.
patent: 5294046 (1994-03-01), Fishman
patent: 5381951 (1995-01-01), Michel

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