Fluid handling – Systems – Multi-way valve unit
Patent
1996-05-23
1998-05-05
McMahon, Marguerite
Fluid handling
Systems
Multi-way valve unit
251 6, F16K 504
Patent
active
057462518
ABSTRACT:
A multi-port valve mechanism for fluids, especially compressed air, comprises a cylindrical (ring-like) housing. A motor drives a shaft centered in the housing which is rotatably supported by the housing walls. The shaft carries an arm having one, or two, rollers which pinch close a flexible and resilient elongated tube, which tube is secured to the inside wall of the housing. A series of port orifices are aligned and spaced along the tube; so that an inlet port is connected to outlet ports, one after the other, in sequence, as the pinch roller is moved along the tube by the arm.
REFERENCES:
patent: 2389000 (1945-11-01), Roberts
patent: 3773078 (1973-11-01), Suntheimer
patent: 3995494 (1976-12-01), Muller et al.
patent: 4878622 (1989-11-01), Jamison et al.
patent: 5326033 (1994-07-01), Anfindsen
Gerber Eliot S.
McMahon Marguerite
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