Dual solenoid vacuum modulator

Details Dual solenoid vacuum modulator Dual solenoid vacuum modulator

1978-09-28

1981-03-31

Michalsky, Gerald A.

Fluid handling

Systems

Supply and exhaust

137879, 137881, 251129, F15B 13044

Patent

active

042587492

ABSTRACT:
A dual solenoid pneumatic pressure control valve having two oppositely acting solenoids, each solenoid containing a valve means responsive to solenoid activation signals for controllably opening one of a plurality of pressure communication conduits disposed within the body of the valve to enable modulated pressure communication between a plurality of reference pressure sources and an output port to control a pneumatic pressure responsive actuator.

REFERENCES:
patent: 2300263 (1942-10-01), McLeod
patent: 2491905 (1949-12-01), Ray
patent: 2553940 (1951-05-01), Quartullo
patent: 3125321 (1964-03-01), Van Domelen
patent: 3340773 (1967-09-01), Franz
patent: 3529620 (1970-09-01), Leiber
patent: 3565111 (1971-02-01), Pearson

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