Combined metal and elastomer seal
US4521040A · kind A · utility
22Cited by
9References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1982 |
| Grant date | Jun 4, 1985 |
| Priority date | — |
| Expiry date | Sep 17, 2002 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/01
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A seal and seal assembly for sealing the annular space (14) between casing hanger bodies. An elastomeric seal ring (22) is interposed between metallic seal rings (20,24) having lips (36,38,40,42). The elastomeric ring is thicker (48) than the metal rings. The lips are of specific configuration, and the seat is supported (28) to permit downward movement of the upper seal ring (20) after compression setting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.