Three-way valve

Details Three-way valve Three-way valve

1979-01-24

1980-12-09

Rosenthal, Arnold

Fluid handling

Systems

Multi-way valve unit

13762527, 13762566, F16K 31128, F16K 1102

Patent

active

042379318

ABSTRACT:
A three-way control valve is described comprising a body member formed with a central axial bore receiving a valve assembly axially displaceable within the bore and including a first valve member adapted to close one end of the bore in one position of the valve assembly, and a second valve member adapted to close the opposite end of the bore in a second position of the valve assembly, to establish selective communication between three ports formed in the body member. The valve assembly is biassed in one position by a spring, and is actuated to its other position by fluid pressure. One application for such a control valve is in a cow milking machine wherein one port is connected to the cow milking cups, the second port is connected to a source of vacuum applied to the milking cups, and the third port is connected to a source of water for washing the milking cups.

REFERENCES:
patent: 3202170 (1965-08-01), Holbrook
patent: 3592227 (1971-07-01), Rivolier

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