Differential pressure seed meter with an endless belt seed transport member
US7918168B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2009 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | Feb 2, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C7/20
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A seed meter is provided having an endless belt as a seed transport member together with a pressure differential to hold the seed onto the belt. The use of an endless belt as the seed transport member enables the spatial orientation of the seed transport member to vary from location to location along the path of the belt where different seed meter functions are performed. The belt allows greater freedom in determining the location of the seed pick-up region and the seed release or removal region beyond the constraints of a fixed diameter seed disk. The belt further allows for a narrow envelope seed meter which can cross-feed seed into a substantially vertically oriented delivery device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.