Implement and spring tine mounting therefore
US4304306A · kind A · utility
8Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 1980 |
| Grant date | Dec 8, 1981 |
| Priority date | — |
| Expiry date | Jan 14, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B23/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A double-coil spring tine is pivotally attached to a channel-shaped mounting bar of a harrow unit by a removable bracket. The portion of the tine connecting the coils is held loosely next to the mounting bar by the bracket so that the entire tine can pivot about the axis of the attaching portion. The portion of the tine on either side of the bracket is placed in tension rather than subjected to bending. Tines are individually replaceable without need to disassemble the mounting bar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.