Reverse seal
US6428013B1 · kind B1 · utility
36Cited by
13References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2000 |
| Grant date | Aug 6, 2002 |
| Priority date | — |
| Expiry date | Jan 28, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/328
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An improved dual lip radial shaft seal is disclosed. The free end of the dual lip seal extends toward the air side of the seal. Optionally, the dual lip seal has an oil side excluder lip seal, an air side dust excluder lip seal, an elastomeric static seal extending from the elastomeric portion of the dual lip seal. In another optional embodiment, a relief groove is formed in the seal. A unitized seal version is also disclosed with two embodiments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.