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US 6,283,156 B1Granted
Expandable O-ring seal, method of sealing and apparatus having such seals
AssigneeHalliburton Energy Services, Inc.
InventorJerry D. Motley
Life of this patent
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Abstract
The present invention discloses a pressured O-ring type sealing system which allows for effective seals without expensive and time consuming machining of the sealing surface. The O-ring sealing system of the present invention allows the sealing member to conform to the natural surface irregularities of the sealing surface and to compensate for any eccentricities between the plug and the inner diameter of the member being sealed.
Claims11
A sealing apparatus comprising
- (a) support member with a sealing surface, with a groove defined by the sealing surface, and with threads defined on the surface;
- (b) a sealing member positioned in the groove and defining a fluid reservoir in the groove between the support member and the sealing member;
- (c) a valve supported by the support member, with a passage defined through the support member, said passage placing the valve in fluid communication with the fluid reservoir.
A sealing apparatus comprising:
- (a) a support member with a sealing surface, with a groove and threads defined by the sealing surface;
- (b) a sealing member positioned in the groove and defining a fluid reservoir in the groove between the support member and the sealing member;
- (c) a valve supported by the support member, with a passage defined through the support member, said passage placing the valve in fluid communication with the fluid reservoir;
- and
- (d) a mating member defining an opening with walls for receiving the support member, with threads defined by the walls, such that the sealing member abuts against a wall of the opening, with the threads of the support member engaged with the threads of the mating member.
2 more elements
Dependencies are inferred from the claim text.