Mowing blade with star
US6470661B1 · kind B1 · utility
9Cited by
6References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 12, 1997 |
| Grant date | Oct 29, 2002 |
| Priority date | — |
| Expiry date | Dec 12, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S56/17
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A shape for the central drive hole of a rotary mowing blade, such shape including two pairs of teeth extending off of a central hole substantially displaced 30° from the central axis of the mowing blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.