Seed meter and accelerator
US6481647B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2000 |
| Grant date | Nov 19, 2002 |
| Priority date | — |
| Expiry date | Aug 14, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C7/20
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A seed meter and accelerator comprises a stationary housing, a stationary axially extending dispensing rim, a radially extending flange and a rotating disc. The stationary housing is provided with an axially extending metering rim. The meter rim is provided with a metering gap. The stationary axially extending dispensing rim is located radially outward from the metering rim and is provided with a dispensing gap. The radially extending flange extends between the axially extending metering rim and the axially extending dispensing rim. The rotating disc is provided with an inner portion having circumferentially arranged seed pockets and an outer portion having seed dispensing openings. Each seed pocket corresponds to a seed dispensing opening. Passages extend between the seed pockets and the seed dispensing openings. The seed pockets of the inner portion are located adjacent to and radially inward from the metering rim. The seed dispensing openings are located adjacent to and radially inward from the dispensing rim. A source of air pressure pressurizes the stationary housing driving seeds into the seed pockets. When a seed pocket is registered with the metering gap the air pressure an…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.