Valve

Details Valve Valve

1975-10-31

1977-09-27

Cohan, Alan

Fluid handling

Systems

Multi-way valve unit

F15B 13044

Patent

active

040504778

ABSTRACT:
A valve including a ball vibrated by a solenoid operated spring biased plunger wherein the ball is moved against one end of each of inlet and exhaust ports alternately in a somewhat oversized cavity to control, for example, the pressures on respective opposite sides of a displacement adjustable piston connected from the inlet port and cavity. The stroke of the piston may be made adjustable, if desired. The solenoid is energized with an A.C. source that has an adjustable frequency. An outstanding feature resides in the use of a needle valve at the other end of the inlet port. Tayloring can thereby be performed, whereas the same had not been otherwise possible in the prior art.

REFERENCES:
patent: 2821997 (1958-02-01), Clay et al.
patent: 3231002 (1966-01-01), Lehrer
patent: 3254675 (1966-06-01), Johnson
patent: 3291003 (1963-12-01), Lunenschloss et al.
patent: 3307824 (1967-03-01), Weisheit
patent: 3395890 (1968-08-01), Eckert et al.
patent: 3451429 (1969-06-01), Vick
patent: 3531080 (1970-09-01), Dillon
patent: 3611878 (1971-10-01), Puster
patent: 3643699 (1972-02-01), Mason
patent: 3661183 (1972-05-01), Komaroff et al.
patent: 3738387 (1973-06-01), Ingram et al.
patent: 3800832 (1974-04-01), Umphenour et al.

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