Seal for use with a movable rod
US6877749B2 · kind B2 · utility
0Cited by
13References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2002 |
| Grant date | Apr 12, 2005 |
| Priority date | — |
| Expiry date | Nov 25, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B53/143
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An apparatus for and method of providing a seal (300) for a movable rod (111) is described. The seal includes a flexible material (303) and a rigid seat (305) that may be utilized as a spring seat. The flexible material (303) has an opening with annular grooves and/or bumps (301) that provide a seal with the rod (111) when it moves axially and/or non-axially, for example, within a cylinder (109) in which the rod (111) and seal (300) are disposed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.