Universal joint with bellows seal and vent
US4559025A · kind A · utility
30Cited by
3References
6Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Apr 3, 1984 |
| Grant date | Dec 17, 1985 |
| Priority date | — |
| Expiry date | Apr 3, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/928
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A bellows seal for a universal joint has its sleeve surrounding the drive shaft separated from this shaft over only a cylindrical segment by a device communicating between the interior of the sleeve and the external atmosphere. This device has a portion of small circumferential width lying below the sleeve and a portion of large circumferential width integral with the first portion. An axial groove in the first portion communicating with a meandering groove forming a baffle in the second portion before this meandering groove opens into the ambient atmosphere.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.