Valve

Details Valve Valve

1985-11-27

1987-04-14

Schwadron, Martin P.

Valves and valve actuation

Fluid actuated or retarded

Plural operations

251162, 251294, 251309, F16K 516

Patent

active

046572228

ABSTRACT:
A valve comprising a valve body having a tapered conical bore and an opposed inlet and outlet openings. A tapered cage abuts the conical bore. The cage is designed for easy replacement. A stopper is arranged within the cage. The stopper has a control vane extending radially outward from the stopper axis. Conical plugs are fixed at each axial end of the control vane. Biasing means urge the stopper toward the small end of the conical bore. A cam surface and cam follower lift the stopper axially away from the small end of the conical bore when it is rotated away from a closed position.

REFERENCES:
patent: 249170 (1881-11-01), Grannan
patent: 715578 (1902-12-01), Heston
patent: 1650312 (1927-11-01), Wildin et al.
patent: 1805668 (1931-05-01), Kelley
patent: 2414966 (1947-01-01), Melichar
patent: 2529544 (1950-11-01), Ebert
patent: 3153317 (1964-10-01), Manor et al.
patent: 3206163 (1965-09-01), Freed
patent: 3685793 (1972-08-01), Szumilas et al.
patent: 3799499 (1974-03-01), Shur
patent: 3888458 (1975-06-01), Bubniak et al.
patent: 4225110 (1980-09-01), Akkerman et al.
patent: 4339110 (1982-07-01), Ortega

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