Radial shaft seal, radial shaft seal assembly and method of installation
US8500130B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2010 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Feb 16, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53657
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A radial shaft seal configured for receipt in a housing and about a shaft to sealingly isolate an air side of the seal from an oil side of the shaft seal is provided. The seal includes a mounting portion and a seal lip having an annular sealing surface extending between an oil side end and a free air side end. An annular bridge is connected to the oil side end of the seal lip by a first hinge and to the mounting portion by a second hinge. The bridge extends from the first hinge to the second hinge in radially overlying relation to the seal lip. A projection extends from the first hinge away from the bridge toward the oil side of the seal to prevent the seal lip from inverting during the oil-side installation assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.