Check valve

Details Check valve Check valve

1983-07-08

1985-07-09

Tapolcai, William E.

Automatic temperature and humidity regulation

Heating radiator

Exhaust operated

236 48R, 236 93R, 237 73, F24F 1100, G05D 2310

Patent

active

045277338

ABSTRACT:
A thermostatic valve including a housing that defines a housing inlet and a housing outlet and a valve body having an end wall and a side wall that define a valve chamber within the housing. The end wall defines an annular valve seat and a valve inlet opening encircled thereby while the side wall defines a plurality of valve outlet openings communicating with the valve chamber. Retained within the valve chamber is a resilient, annular seal encircling the valve inlet opening and a bi-metallic disc substantially parallel to the valve seat and normally spaced therefrom by a distance greater than the thickness of the annular seal. In response to a predetermined ambient temperature the bi-metallic disc deflects concavely into the valve chamber and into fluid sealing engagement wih one end of the annular seal forcing an opposite end thereof into fluid sealing engagement with the valve seat.

REFERENCES:
patent: 2203759 (1940-06-01), Ware
patent: 2346590 (1944-04-01), La Rocque et al.
patent: 3450342 (1969-06-01), Arledge, Jr.
patent: 3930613 (1976-01-01), Place
patent: 4027848 (1977-06-01), Mundil
patent: 4133478 (1979-01-01), Place
patent: 4140275 (1979-02-01), Inada
patent: 4142677 (1979-03-01), Ludwig
patent: 4156518 (1979-05-01), Ludwig
patent: 4262844 (1981-04-01), Sekiya

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