Seed and fertilizer drill drive
US4263858A · kind A · utility
9Cited by
2References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 6, 1979 |
| Grant date | Apr 28, 1981 |
| Priority date | — |
| Expiry date | Feb 6, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C7/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A machine (FIG. 1) for dispensing seed and fertilizers, which is equipped with two hoppers one for the seed, and the other for the fertilizer. The materials flowing from outlet apertures of the hoppers while the machine is in operation are introduced into the soil in controlled amounts through proportioning means, chutes and tubes which discharge into hoes. The proportioning means have a plurality of feed wheels disposed on shafts and are driven by a ground-dependent power source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.