Valve apparatus

Details Valve apparatus Valve apparatus

1974-12-06

1978-02-14

Cohan, Alan

Fluid handling

Systems

Multi-way valve unit

137269, 137271, 1376255, F16K 1104, F16K 31365

Patent

active

040733130

ABSTRACT:
Valve apparatus including a generally cylindrical valve body member and at least one pilot valve located at the end of the valve body member. A supply valve is located within the valve body member and the supply valve and the pilot valve permit the non-throttling interruption of fluid flow as well as permitting the fluid flow pressure to maintain the supply valve in a positive or locked position. The non-throttling and locked operational features are made possible by the relationships of various areas upon which pressures are exerted and the supply pressure. Various embodiments of the invention are presented and these embodiments have convertible components which permit them to be converted into various types of operational configurations.

REFERENCES:
patent: 1623557 (1927-04-01), Rybeck
patent: 2829858 (1958-04-01), Williams
patent: 3457956 (1969-07-01), Andrews
patent: 3521850 (1970-07-01), German
patent: 3565101 (1971-02-01), Aslan
patent: 3575211 (1971-08-01), Wagner
patent: 3670771 (1972-06-01), Dewberry
patent: 3746401 (1973-07-01), Stearns

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