Sieve with different louvers
US7399223B2 · kind B2 · utility
9Cited by
10References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2006 |
| Grant date | Jul 15, 2008 |
| Priority date | — |
| Expiry date | Jun 13, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01F12/446
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention refers to a screen for a cleaning device of a harvester-thresher, with a screen frame, on which several screen metal sheets are supported so they can rotate around an axis, and with at least one air conducting surface, which protrudes downward beyond the screen frame, to deflect an air flow present below the screen during operation upward to the screen metal sheets. The air conducting surface may be movable jointly with the screen metal sheets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.