Redundant seal apparatus and method
US9010761B2 · kind B2 · utility
3Cited by
13References
43Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2012 |
| Grant date | Apr 21, 2015 |
| Priority date | — |
| Expiry date | Jul 31, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49826
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An apparatus includes a rotatable shaft having a shaft surface and a first seal disposed in a sealing engagement with the shaft surface. At least a second seal is disposed in a first position relative to the rotatable shaft where the second seal is not in sealing engagement with the shaft surface and is movable to a second position relative to the rotatable shaft where the second seal is in sealing engagement with the shaft surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.