Hydrodynamic seal
US4705277A · kind A · utility
26Cited by
8References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 8, 1984 |
| Grant date | Nov 10, 1987 |
| Priority date | — |
| Expiry date | Nov 8, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/3244
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A polytetrafluoroethylene seal is provided with surface effect vanes that effect hydrodynamic pumping of oil upon rotation of a shaft about which the seal is disposed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.