Pressure regulator

Details Pressure regulator Pressure regulator

1977-12-30

1980-01-08

O'Dea, William F.

Automatic temperature and humidity regulation

Thermostatic

With pressure control

251 78, G05D 2700

Patent

active

041824881

ABSTRACT:
A pressure regulator has a diaphragm controlled valve and a temperature responsive means for adjusting the loading on the diaphragm to provide a pressure control from a maximum pressure to a minimum pressure in a modulating manner as the temperature changes. The temperature responsive means operates a lever for varying the spring loading on the diaphragm which is accomplished by a resilient biased pin and a C-shaped spring so that when the pin is lifted by the lever to reduce the force on the C spring, the C spring provides for a broadening of the force on the diaphragm and thus widening the modulation range of pressure for a given range in temperature.

REFERENCES:
patent: 798386 (1905-08-01), Baker
patent: 3029026 (1962-04-01), Eskin
patent: 3259316 (1966-07-01), Wright et al.
patent: 3304002 (1967-02-01), Grayson
patent: 3307785 (1967-03-01), Currie
patent: 3354901 (1967-11-01), Dietiker et al.
patent: 3451421 (1969-06-01), Vicenzi et al.
patent: 3453903 (1969-07-01), Clifford

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