Tailings rethresher mechanical delivery to return pan
US7934982B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2007 |
| Grant date | May 3, 2011 |
| Priority date | — |
| Expiry date | Apr 2, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01F12/52
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A rethreshing system and method for a combine having a cleaning system that includes at least one sieve or like material separating mechanism. The rethreshing system includes a tailings collection pan for collecting tailings that do not pass through the sieve and a tailings rethreshing mechanism receiving the tailings from the collection pan and rethreshing the tailings. A distribution auger is arranged across a return pan of the cleaning system and is operable to substantially evenly distribute rethreshed tailings on the return pan of the cleaning system. The distribution auger includes a tubular auger housing having an entrance for receiving material to be conveyed, a closed end opposite the entrance, and a longitudinally elongated and tapered slot formation through a sidewall of the tubular auger housing, the slot formation having a small width near the entrance to the tubular housing and a wide width near the closed end of the tubular housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.