Hostile environment joint seal and method for installation
US4537406A · kind A · utility
34Cited by
14References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1983 |
| Grant date | Aug 27, 1985 |
| Priority date | — |
| Expiry date | Apr 27, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S285/917
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A tubular joint sealing system for use in high pressure and high temperature conditions is provided. The sealing system consists of a shape memory material backup member combined with a compliant seal. The shape memory member is deformed into an intermediate shape that is sufficiently reduced in size so as to avoid abrasive contact with the sealing surfaces of the tubular members during the mechanical makeup of the joint. Thereafter, the shape memory member may be activated to assume its memory shape configuration, which is selected to be sufficient size to form a pressure and fluid-tight seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.