Harrow with link having spike support attitude control
US4624322A · kind A · utility
2Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 4, 1985 |
| Grant date | Nov 25, 1986 |
| Priority date | — |
| Expiry date | Sep 4, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B19/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A flexible spike-tooth harrow having a plurality of tooth-supporting angles spaced fore-and-aft by connecting structure including reversible link straps having opposed edge surfaces on one end thereof tapered with respect to the axis of the strap at differing angles. A selected one of the edges is positioned against the top side of the angle to maintain the spikes in a preselected working attitude. By simply reversing the strap with respect to its longitudinal axis, the working angle of the spikes can be changed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.