Subsurface solenoid latched safety valve
Patent
·
OSTI ID:5717683
A solenoid operated well safety valve is described consisting of: a housing having a bore, a valve closure member in the bore moving between open and closed positions, a tubular member telescopically movable in the housing for controlling the movement of the valve closure member, first biasing means acting on the tubular member for moving the tubular member in a direction to close the valve, an armature movable in the housing, a solenoid coil adjacent to the housing for moving the armature, second biasing means acting on the armature for moving the armature upwardly, and releasable lock means for locking the tubular member in the open position, the lock means includes means for releasably locking the tubular member to the housing in which the locking means, is held in the locked position by the armature in response to the solenoid coil.
- Assignee:
- Camco Inc., Houston, TX
- Patent Number(s):
- US 4579177
- OSTI ID:
- 5717683
- Country of Publication:
- United States
- Language:
- English
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