Three port valve construction and method of making the same

Details Three port valve construction and method of making the same Three port valve construction and method of making the same

1976-05-14

1978-04-25

Rosenthal, Arnold

Fluid handling

Systems

Multi-way valve unit

13762527, 251359, 291571R, F16K 1102

Patent

active

040857751

ABSTRACT:
A three port valve construction having a onepiece plastic valve housing body provided with a stepped cylindrical opening through one end thereof that defines a pair of spaced annular shoulders, the body having three ports therein transversely disposed to the opening and respectively intersecting with the opening with one port being located between the shoulders and the other two ports being respectively disposed outboard of the shoulders. One of the shoulders defines a first valve seat and an annular plastic valve seat member is ultrasonically welded to the other of the shoulders to define a second valve seat. An axially movable valve member is slidingly disposed in the opening to control the first and second valve seats.

REFERENCES:
patent: 3329165 (1967-07-01), Lang
patent: 3503377 (1970-03-01), Beatenbough
patent: 3913887 (1975-10-01), Siepmann
patent: 3930515 (1976-01-01), Kennedy et al.
patent: 3960124 (1976-06-01), Payne
patent: 3961606 (1976-06-01), Wong
patent: 3989058 (1976-11-01), Jackson et al.

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