Wireline valve actuator
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United States of America Patent
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-
Jan 25, 2005
Grant Date -
Apr 24, 2003
app pub date -
Sep 3, 2002
filing date -
Sep 3, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A wireline valve/blowout preventor is capable of resisting the flow of fluids through a bore. At least one actuator assembly has a first and second end moveable between a first configuration in which fluids can flow through the bore, and a second configuration in which fluids flow through the bore is prevented. The first and second ends are each exposed to the pressure in the bore. A biasing arrangement may bias the actuator assembly toward one of the first and second configurations. A locking member may also be provided to abut with the actuator assembly when it is in the second configuration in order to prevent movement of the actuator assembly from the second configuration to the first configuration. Also, the actuator assembly may have at least one rod assembly which extends from the actuator assembly to a position where it is visible from an outside of the apparatus.
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