Seal for a shaft
US5056801A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 8, 1989 |
| Grant date | Oct 15, 1991 |
| Priority date | — |
| Expiry date | Dec 8, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02G3/088
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A seal for sealing a shaft to a sheet of material is provided, the seal having a hollow body to extend through an aperture in the sheet of material, an outwardly extending flange on one end of the body, at least one first annular sealing element extending radially inwardly of the body for cooperation with the shaft to provide a seal therebetween, a second annular sealing element interposed between the flange and a first face of the sheet of material to seal the flange to the sheet, and a retaining member on the other end of the body to retain the body in the aperture and bias the flange towards the first face of the sheet material, wherein the body and the flange are of relatively hard material and the first and second annular sealing elements are of relatively soft material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.