Universal joint having a flexible boot
US4820238A · kind A · utility
9Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 1987 |
| Grant date | Apr 11, 1989 |
| Priority date | — |
| Expiry date | Aug 3, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S464/906
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A universal joint provided with a joint body having an inner ring disposed at one end of a first shaft and an outer ring disposed at one end of a second shaft, and a flexible boot fitted at its opposite ends to said outer ring and the first shaft. Inside the flexible boot is formed a sealed space in which grease for lubricating the joint body is enclosed and which is charged with nitrogen gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.