Rotary shaft seal
US6409177B1 · kind B1 · utility
30Cited by
15References
39Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 31, 2000 |
| Grant date | Jun 25, 2002 |
| Priority date | — |
| Expiry date | May 31, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/3252
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A radial shaft seal with a membrane is disclosed. The surface of the membrane is in sealing contact with the shaft. A plurality of inclined waves are formed in the surface in response to shear stresses formed by movement of one of the support rings relative to the other. The inclined waves are generally elliptical in shape and form an undulating surface. The direction of the inclined waves can be changed in response to shaft rotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.