Fast closing well choke

Details Fast closing well choke Fast closing well choke

2007-10-30

2007-10-30

Fox, John (Department: 3753)

Valves and valve actuation

Fluid actuated or retarded

Fluid and non-fluid actuators

C251S229000

Reexamination Certificate

active

11264319

ABSTRACT:
A well choke has a quick closure device quickly moving the choke element to a closed position. The closure device mounts between an actuator and a choke. The actuator has a stepper motor and gear train for incrementally moving an actuator rod and a choke element linearly. The quick closure has a hydraulic cylinder that will move the entire actuator, including the actuator rod, toward the choke, when actuated.

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patent: 2346429 (2000-08-01), None
patent: 2410963 (2005-08-01), None

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