Seed distribution system for planters and drills
US5379706A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1993 |
| Grant date | Jan 10, 1995 |
| Priority date | — |
| Expiry date | Apr 7, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C15/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A seed distribution system is provided for planters and drills wherein the distribution system includes a central hopper for supplying a plurality of seed metering units. A plurality of seed distribution units are mounted on a lower portion of the central hopper and each seed distribution unit includes a central tubular member defining an air column for entraining seeds to be distributed from the central hopper. A plurality of discharge outlets open into the air column for receiving seeds therefrom and for conveying the seeds through distribution tubes to metering unit bins associated with each of the seed metering units. In addition, each of the seed metering unit bins is provided with apparatus for adjusting the level of seed accumulated within the bin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.