Bulkhead seal
US8608172B2 · kind B2 · utility
1Cited by
47References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2010 |
| Grant date | Dec 17, 2013 |
| Priority date | — |
| Expiry date | Aug 5, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/164
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A bulkhead seal includes a housing configured to be attached to a bulkhead about a shaft and defining an annular recess. An annular diaphragm seal is rotatably disposed in the annular recess of the housing and about the shaft. A plurality of orifices extend through the annular diaphragm seal to prevent air pressure differentials from locking the annular diaphragm seal with respect to the housing. A lip seal is provided on each side of the annular diaphragm seal. Each lip seal includes a seal portion disposed to seal the orifices in the presences of liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.