Uni-directional seal for use on a shaft
US5921555A · kind A · utility
48Cited by
15References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 10, 1997 |
| Grant date | Jul 13, 1999 |
| Priority date | — |
| Expiry date | Apr 10, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/3228
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A uni-directional seal member for use on a shaft includes a rigid shell, a support member in contact with the rigid shell, and a resilient sealing member in contact with the support member and an insert washer. The sealing member has a sealing face, where that sealing face has a contact area having a radially extending profile of a cyclically repeating shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.