Constant force face seal
US4165081A · kind A · utility
5Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 14, 1978 |
| Grant date | Aug 21, 1979 |
| Priority date | — |
| Expiry date | Apr 14, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/916
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A face seal for sealing the joint between a rotary shaft and a stationary using, said seal comprising two sealing discs engaged together through the biasing force of a zero rate spring means. The spring means provides a constant biasing force to maintain a pre-determined sealing engagement force between the discs irrespective of such disturbances as manufacturing tolerances, component assembly errors, service oscillations of the shaft, vibrational effects, or service wear on the sealing discs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.