Seal for drive unit
US5303534A · kind A · utility
4Cited by
5References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 22, 1993 |
| Grant date | Apr 19, 1994 |
| Priority date | — |
| Expiry date | Feb 22, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/72
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A drive mechanism for a lawn mower is proved which includes a pair of sealed ratchet mechanisms which provide improved resistance to wear and contamination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.