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US 6,148,919 AGranted
Apparatus having a releasable lock
AssigneeHalliburton Energy Services, Inc.
InventorsWesley J. Burris, II, Neal G. Skinner
Life of this patent
Estimating the term…
Abstract
Apparatus including a releasable lock is provided. In a described embodiment, a valve assembly includes a ball valve, a piston, and a releasable lock. The releasable lock prevents operation of the ball valve until a predetermined fluid pressure is applied to the exterior of the apparatus.
Claims20
An apparatus operatively positionable in a subterranean well, the apparatus comprising:
- a force transmitting assembly including first, second and third members releasably secured against displacement relative to each other, a force applied to the first member being transmitted to the second member when the third member is disposed in a first position, and relative displacement being permitted between the first and second members when the third member is disposed in a second position.
An apparatus operatively positionable in a subterranean wellbore, the apparatus comprising:
- a force generating assembly operative to generate a force;
- a device operating upon receipt of the force;
- and
- a force transmitting assembly selectively preventing and permitting transmission of the force to the device, the force transmitting assembly including first and second members slidingly disposed relative to each other, the first member being engageable with the force generating assembly, and the second member being engageable with the device.
1 more element
Apparatus operatively positionable in a subterranean well, the apparatus comprising:
- a ball valve operable upon receipt of a force applied thereto;
- a force generating assembly operable to generate the force;
- and
- a force transmitting assembly interconnected between the ball valve and the force generating assembly, the force transmitting assembly transmitting the force from the force generating assembly to the ball valve in response to displacement of a first member relative to a second member of the force transmitting assembly, and the first member displacing relative to the second member in response to a predetermined fluid pressure applied to the apparatus.
1 more element
Dependencies are inferred from the claim text.