Rotation shaft seal
US7780172B2 · kind B2 · utility
4Cited by
12References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 2007 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Dec 15, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/322
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a rotation shaft seal provided with a rubber lip portion, disposed between a housing and a rotation shaft and sliding on the rotation shaft, and a supporting member receiving the lip portion from a low-pressure side, the cross-sectional configuration of the lip portion in free state is a trapezoid diminishing to the end having the maximum thickness portion within an area received by the supporting member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.