Valves and valve actuation – Fluid actuated or retarded – Pilot or servo type motor
Patent
1979-04-03
1981-03-24
Rosenthal, Arnold
Valves and valve actuation
Fluid actuated or retarded
Pilot or servo type motor
13762564, F16K 31128
Patent
active
042575737
ABSTRACT:
An electromagnetic valve with servo-control is controlled by a movable core. The fluid under pressure contained in the chamber for the servo-control passes by a stationary seat capable of being closed by a flap valve on the core. The seat is fed by fluid under pressure through a conduit in a movable valve through a sliding tube. This tube can be made of plastic material and be reinforced by an externally mounted spring.
REFERENCES:
patent: 2659197 (1953-11-01), Halford et al.
patent: 3181567 (1965-05-01), Deutsch et al.
Groff, Jr. Emory L.
Lucifer S.A.
Rosenthal Arnold
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