Dissimilar materials seal for high pressure, high temperature and chemically reactive environments
US4053085A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 1975 |
| Grant date | Oct 11, 1977 |
| Priority date | — |
| Expiry date | Oct 10, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/021
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A seal apparatus for making demountable gas tight seals between juxtaposed dissimilar material parts in high temperature, high pressure and chemically reactive environments. The seal is comprised of two or more concentric elastomer washer seals mounted in a first juxtaposed part within a recessed channel of measured depth. The washer seals have a thickness greater than the measured depth of the channel, thereby providing contact with the second juxtaposed part interfaced with the first or channeled part. The inner concentric elastomer washer, being made of chemically relatively inert material, and the outer concentric elastomer washer being made of high resilient, therefore relatively chemically reactive material. The outer concentric washer seal is the true load bearing seal; the inner seal is a means for shielding the load bearing seal from chemical deterioration. A flexible annular metal contactor mounted exterior to the outermost concentric washer seal thermally contacts both juxtaposed parts and maintains thermal equilibrium there between.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.