Diaphragm operated pressure regulator

Details Diaphragm operated pressure regulator Diaphragm operated pressure regulator

1981-09-23

1983-09-27

Tapolcai, William E.

Automatic temperature and humidity regulation

Motors

Fluid-operated

137489, 236 92A, G05D 2700

Patent

active

044064004

ABSTRACT:
A diaphragm operated pressure regulator having jointly operable principal and auxiliary springs, the auxiliary spring being readily exchangeable to vary the control characteristic of the regulator without affecting the maximum and minimum pressure adjustments of the regulator.

REFERENCES:
patent: 2611542 (1952-09-01), Crum et al.
patent: 3235180 (1966-02-01), Graham et al.
patent: 3307785 (1967-03-01), Currie
patent: 3366140 (1968-01-01), Dunn
patent: 4182488 (1980-01-01), Berkhof

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