Fluid pressure signal controller

Details Fluid pressure signal controller Fluid pressure signal controller

1980-05-05

1982-02-16

Cohan, Alan

Fluid handling

Pressure modulating relays or followers

With counter-balancing pressure feedback to the modulating...

251263, 236 79, G05D 1600

Patent

active

043155219

ABSTRACT:
A fluid pressure and electrical signal controller for providing a predetermined regulated vacuum signal from a variable source in response to changes in position of a rotatable input shaft when attached thereto and an electrical signal at a predetermined position of the input shaft. A pressure force balance type vacuum modulator valve is preloaded and biased by a spring connected to a cam follower which tracks a rotary cam turned by the input shaft. The modulator valve is slidably attached to the controller body for adjusting the preload length of the spring and a rotatable adjustment ring engages the valve and is threadedly received on the controller body for effecting sliding adjustment of the valve position on the controller body.

REFERENCES:
patent: 2550011 (1951-04-01), Kohler
patent: 3015963 (1902-01-01), Terry
patent: 3476316 (1969-11-01), Franz
patent: 3770195 (1973-11-01), Franz
patent: 3831841 (1974-08-01), Franz
patent: 3856045 (1974-12-01), Kenny
patent: 4245780 (1981-01-01), Franz

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