Seed drill
US4026437A · kind A · utility
43Cited by
5References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 17, 1975 |
| Grant date | May 31, 1977 |
| Priority date | — |
| Expiry date | Nov 17, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C7/206
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for metering and transporting particulate material, particularly seeds, in which suction is continuously applied to holes in a surface of a drum to enable the particles to be picked up by the drum, an air pressure device being provided to produce an air stream for entraining and accelerating the particles along a transport passage away from the drum surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.