Cleaning system for a combine
US5041059A · kind A · utility
29Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 10, 1990 |
| Grant date | Aug 20, 1991 |
| Priority date | — |
| Expiry date | May 10, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S460/902
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A cleaning system for a combine including at least one sieve located in a housing of the combine such that a flow of air from a fan mechanism is directed upwardly therethrough. The sieve includes a plurality of louvers which are are arranged relative to each other to define a first series of clean grain passages therebetween. A majority of the louvers define a series of openings which define a second series of openings which allow clean grain to pass therethrough and facilitate an increased flow of air therethrough to enhance separation of unwanted residue from clean grain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.