Stretchable oil seal and method of installation
US4907811A · kind A · utility
7Cited by
10References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1989 |
| Grant date | Mar 13, 1990 |
| Priority date | — |
| Expiry date | Jun 26, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53909
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fluid seal made of elastomeric material for use between an external stationary member and a rotating internal member avoids use of a customary pressed steel case. The seal may be stretched over an external flange on a rotatable shaft and recover from the elongation to the designed dimension at which the seal is to operate within the external stationary member. A specially formulated elastomeric composition accommodates elongation during stretching in excess of 300%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.