Shaft sealing ring
US4964647A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 16, 1988 |
| Grant date | Oct 23, 1990 |
| Priority date | — |
| Expiry date | Dec 16, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/3204
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An article for use as a shaft sealing ring for sealing a fluid medium includes an elastomeric body, a housing member, and a sealing lip having a sealing edge; the sealing edge, when installed about a shaft, being radially deformed and contacting a surface of the shaft along a running zone having a first end adjoining the fluid medium and a second end adjoining the environment to be sealed from the fluid medium; the sealing edge, when in a non-installed condition, having an annular surface of varying inner diameter along the running zone; the smallest of the varying inner diameter lying closer to the first end than to the second end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.