Fluid handling – Systems – Supply and exhaust
Patent
1977-05-23
1979-10-09
Schwadron, Martin P.
Fluid handling
Systems
Supply and exhaust
1375962, 91420, F15B 1108, F15B 13043
Patent
active
041702468
ABSTRACT:
A valve for directing pressurized fluid includes a fluid directional element for controlling fluid flow to a work member and a motor, and a one way flow member for controlling fluid flow to the work member. The one way flow member is actuated by a pilot operated actuator. The pilot operated actuator includes surfaces against which fluid pressure acts to move the actuator from a first position to a position actuating the one way flow member to allow flow to the work member. The valve further includes a capturing mechanism to hold the pilot operated actuator in its actuating position to hold the one way flow member in the actuated position allowing flow to and from the work member.
REFERENCES:
patent: 2608824 (1952-09-01), Kirkham
patent: 2621478 (1952-12-01), Bridwell et al.
patent: 3171496 (1965-03-01), Nelson
patent: 3411536 (1968-11-01), Tennis
patent: 3472261 (1969-10-01), Brannon
patent: 3543647 (1970-12-01), Hall et al.
patent: 3866419 (1975-02-01), Paul
patent: 3908515 (1975-09-01), Johnson
patent: 3929159 (1975-12-01), McAvoy
patent: 4039085 (1977-08-01), Livengood
Chambers A. Michael
Schwadron Martin P.
Sta-Rite Industries, Inc.
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