Hydraulic seal and method of assembling the same
US5239750A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 16, 1992 |
| Grant date | Aug 31, 1993 |
| Priority date | — |
| Expiry date | Apr 16, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49872
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic seal is formed in the annular space 16 between two coaxial drive shafts 12 and 14. The seal is assembled with the two shafts in situ. An annular resilient seal member 30, which has an outer diameter which is larger than the inner diameter of the outer shaft 12, is deformed so that it can be passed through the annular space 16. The resilient seal member 30 is positioned in a channel 18 in the inner surface of the outer shaft 12. Once in the channel 18 the resilient seal member 30 returns to its original shape. The resilient seal member 30 is located between a pair of annular flanges 22 and 26 on the end of a pair of elongate members 20 and 24 of annular cross-section. The resilient seal member 30 protrudes into the channel 18 so that in operation it is partially immersed in a fluid 32 in the channel 18 to form the hydraulic seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.