Flange seal
US4406458A · kind A · utility
7Cited by
5References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 6, 1981 |
| Grant date | Sep 27, 1983 |
| Priority date | — |
| Expiry date | Nov 6, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/937
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A sealing assembly for oppositely disposed flanges having a sealing frame interposed therebetween, is proposed. The sealing frame has oppositely disposed grooves into each of which are affixed metal sealing elements and the oppositely disposed flanges have grooves into which are positioned O-rings that engage the metal sealing elements in said sealing frame. Further, an annular channel is disposed in each of the flanges whereby a vacuum may be established between the O-rings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.