Machined shaft seal with reinforcing ring
US5245741A · kind A · utility
6Cited by
13References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1992 |
| Grant date | Sep 21, 1993 |
| Priority date | — |
| Expiry date | Jul 10, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49876
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A shaft seal that includes a one-piece annular resilient seal element having an outer surface in static contact with a housing bore surface and an inner surface in rubbing contact with a circular shaft surface. A reinforcement ring is inserted into an internal cavity within the seal element to exert an outward radial force on an axial wall portion of the resilient seal element. The shaft seal can be manufactured at relatively low cost in small production quantities, using relatively low cost multi-purpose tooling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.