Indexing automatic fill-up float valve

Details Indexing automatic fill-up float valve Indexing automatic fill-up float valve

1976-01-02

1978-01-10

Cohan, Alan

Fluid handling

Systems

Programmer or timer

13762427, 137515, 251230, F16K 3112

Patent

active

040673588

ABSTRACT:
A valve for repetitively allowing and preventing upward fluid flow through a casing string. The valve is convertible from a locked open position permitting reverse upward fluid flow therethrough to a check valve position preventing upward fluid flow therethrough by flowing fluid downwardly through the casing to actuate an indexing J-slot mechanism interconnecting the spring-loaded valve member and the valve body assembly. The valve may be recycled to the locked open position from the check valve position an unlimited number of times through the flowing of fluid in a forward direction downwardly through the casing string.

REFERENCES:
patent: 2802482 (1957-08-01), Arnbold
patent: 3220695 (1965-11-01), Downey
patent: 3807428 (1974-04-01), Watkins

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