Remotely operated valve

Details Remotely operated valve Remotely operated valve

1981-12-01

1983-12-27

Schwadron, Martin P.

Valves and valve actuation

Fluid actuated or retarded

With mechanical movement between actuator and valve

251250, 92136, 92108, 166321, 166332, F16K 3112, F16K 3154

Patent

active

044226187

ABSTRACT:
A remotely operated valve, typically for use as a downhole safety valve, adapted to be connected in-line between two pieces of well pipe or other fluid-conducting members, the valve being rack-and-pinion operated and characterized by including a combined piston and rack member with the piston concentric with a through bore of the valve and with the rack eccentric with respect to the through bore, the eccentric disposition of the rack and associated support members making it possible to achieve a dependably operable valve of minimum transverse dimensions without increased complexity or cost of manufacture.

REFERENCES:
patent: 1504508 (1924-08-01), Richardson
patent: 2813588 (1957-11-01), O'Reilly
patent: 3094170 (1963-06-01), Bourne
patent: 3806082 (1974-04-01), Kellner
patent: 4360064 (1982-11-01), O'Connor

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