Method and apparatus for sealing at a sliding interface
This patent describes a seal apparatus for containing fluid under variable pressure in a pressurized region to prevent leakage into a less-pressurized region. It comprises first and second interfacing seal members adapted to slidably engage one another at an interface region during makeup of the seal apparatus; a seal region carried by the first seal member at the interface region and composed of a deformable material; a seal bead carried at the interface region by the second seal member and protruding therefrom, the seal beam being composed of a material less malleable than the seal region for seating in the seal region; wherein at least a portion of the second seal member adjacent the seal bead forms a containment barrier with the pressurized region on one side and the less-pressurized region on the opposite side; and wherein a pressure differential developed between the pressurized region and the less-pressurized region urges the seal beads into tighter engagement with the seal region in an amount corresponding to the pressure differential.
- Assignee:
- Baker Hughes Inc., Houston, TX (United States)
- Patent Number(s):
- US 5105879; A
- Application Number:
- PPN: US 7-672400
- OSTI ID:
- 5158737
- Resource Relation:
- Patent File Date: 20 Mar 1991
- Country of Publication:
- United States
- Language:
- English
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