Anti-extrusion seal with primary and secondary complementary elements
US4635945A · kind A · utility
38Cited by
6References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 21, 1986 |
| Grant date | Jan 13, 1987 |
| Priority date | — |
| Expiry date | Mar 21, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/166
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A composite seal comprising a primary seal element and a secondary sealing element. The primary seal element is more readily deformable than the secondary seal element. Juxtaposed surfaces of the seal elements are configured to minimize extrusion of the primary seal element past the secondary seal element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.