Fluid handling – Systems – Multi-way valve unit
Patent
1979-12-26
1982-03-16
Rosenthal, Arnold
Fluid handling
Systems
Multi-way valve unit
251358, F16K 1104
Patent
active
043196071
ABSTRACT:
The improved valve assembly comprises, in combination, a housing having an elongated central passageway and a plurality of spaced ports in the sidewall thereof along the length thereof in communication with the passageway, an elongated drive shaft disposed in the passageway and movable between a resting position and an actuated position, first biasing means biasing the shaft into the resting position, a plurality of valve openings along the length of the passageway and providing communication between adjacent ones of said ports, a plurality of free floating valve sealing elements disposed transversely on, secured to and spaced along the shaft in the housing, each said element being disposed between two adjacent valve openings, second biasing means in the housing around the shaft biasing the valve elements apart on the shaft, and actuator means connected to the housing for hydraulic pressure movement of the shaft between the resting position wherein a first spaced set of the valve openings is closed by the valve sealing elements and the actuated position wherein a separate second spaced set of the valve openings is closed by the valve sealing elements. The biasing means may be coil springs and each valve sealing element may be a disc bearing valve sealing surfaces on opposite sides thereof.
REFERENCES:
patent: 2640494 (1953-06-01), Kounovsky
patent: 2897836 (1959-08-01), Peters et al.
patent: 2935092 (1960-05-01), Stoner
patent: 3779280 (1973-12-01), Evans et al.
patent: 3974861 (1976-08-01), Hashiguchi et al.
Nist Donald E.
Rosenthal Arnold
Yardney Electric Corporation
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