Dynamic sealing device for high-temperature and high-pressure operation
US4004443A · kind A · utility
2Cited by
5References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 1974 |
| Grant date | Jan 25, 1977 |
| Priority date | — |
| Expiry date | Apr 4, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/91
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pressure-tight assembly which can constitute a dummy block for an extension ram is made up of two coaxial components arranged in spaced relation to accommodate at least one peripheral seal. One component has a small flat bearing surface extending at right angles to the axis and the other component has a bearing surface which is inclined to the axis. The resultant of the forces exerted on the seal which is imprisoned between said bearing surfaces causes preferential creep deformation of the seal towards the exterior of the assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.