Seal device
US6840521B2 · kind B2 · utility
13Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 18, 2002 |
| Grant date | Jan 11, 2005 |
| Priority date | — |
| Expiry date | Oct 18, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/3228
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The face pressure of a seal lip for sealing is made sharp to improve the sealing ability and the seal lip is prevented from being deformed abnormally when a shaft is inserted therein. In the constitution, the inside diameter of the corner face of the sealing face is smaller than the outside diameter of the shaft. When the outside surface of the support section of the support ring expands the expandable inner surface, the inside diameter of the sealing face is also expanded diametrically to closely contact the corner face of the sealing face with the shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.