Coulter and fertilizer applicator linkage arrangement
US4947770A · kind A · utility
33Cited by
5References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 7, 1989 |
| Grant date | Aug 14, 1990 |
| Priority date | — |
| Expiry date | Jul 7, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S111/927
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A parallel linkage arrangement for supporting a coulter disc and liquid fertilizer applicator on an agricultural tool bar such that the coulter disc and the fertilizer applicator maintain the same relative relationship to the ground regardless of vertical travel of the coulter disc or the applicator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.