Protected swivel
US5772350A · kind A · utility
Inventors
Key dates
| Filing date | Dec 8, 1995 |
| Grant date | Jun 30, 1998 |
| Priority date | — |
| Expiry date | Dec 8, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/32983
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A protected swivel has first and second members connected in swiveling engagement and a sleeve overlaying and enclosing at least a portion of each of the first and second members. The sleeve is coupled in sealing engagement with the first member to swivel with the first member. A first seal is interposed between the sleeve and the second member for sealing engagement of the sleeve with the first member. A second seal extends between the first member and the second member. The second seal may include a barrier layer of a viscous material. A swivel bearing is interposed between the first and second swivel members, with the second seal extending between the bearing and the second swivel member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.