Apparatus for planting seeds in drills at predetermined intervals
US4516690A · kind A · utility
5Cited by
3References
1Claims
0Family size
Inventor
Key dates
| Filing date | Aug 10, 1982 |
| Grant date | May 14, 1985 |
| Priority date | — |
| Expiry date | Aug 10, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C7/0445
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for planting seeds in drills at predetermined intervals is adapted to transport the seeds one by one by means of spoons (8) from a seed store to an outlet duct (10). To ensure a reliable, selective discharge of the seeds from the spoons (8), a compressed-air nozzle (13) is arranged to direct a flow of compressed air from a location opposite the inlet opening (11) of the outlet duct (10) towards each individual spoon (8) as it passes between the nozzle and the inlet opening (11).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.