Marine shaft seal with lip seal, bearing and gasket
US6866271B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 5, 2003 |
| Grant date | Mar 15, 2005 |
| Priority date | — |
| Expiry date | Feb 5, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/3276
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A sealing device for use with a drive shaft of a water vessel. The sealing device comprises a housing for a seal and bearing, a compression ring, a lip seal flange attachment and a diaphragm for tracking the movement of the shaft. The diaphragm is made of a resilient, flexible material and is operatively connected to the seal housing. In operation, the diaphragm tracks the motion of the drive shaft so that the drive shaft may move freely in the hull of the vessel. The diaphragm allows the rigid seal housing to also move in response to any axial, lateral or circular-axial (wobble-like) movement of the shaft so that a constant seal around the shaft is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.