Reciprocating seal
US7918463B2 · kind B2 · utility
1Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2008 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | Oct 3, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/56
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A reciprocating seal used, for example, for a shock absorber. A main seal lip has a two-step lip structure including a first lip and a second lip and a plurality of protrusions extending in the direction of the shaft are formed on a sliding contact surface of the second lip, thereby improving frictional force characteristics and, at the same time, improving sealing performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.