Concave for an agricultural combine
US6193604A · kind A · utility
59Cited by
16References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1999 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Jul 7, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01F12/24
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A concave for an agricultural combine having an array of straight rectangular bars and straight round bars spaced from one another and extending axially of the rotor or cylinder to form a threshing surface and to form openings therebetween for grain to pass through. The round bars shed crop material to reduce plugging while the rectangular bars provide an aggressive threshing edge. Smaller diameter wires can be inserted between the round and rectangular bars to reduce the opening size for use with small grains.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.