A - Human Necessities – 01 – D
Patent
A - Human Necessities
01
D
A01D 75/00 (2006.01) A01D 41/12 (2006.01) A01F 12/44 (2006.01)
Patent
CA 2063906
A combine cleaning system including a fan and a cleaning sieve which coact with each other to separate chaff and unthreshed tailings from grain. The sieve defines a grain cleaning area comprised of an air foil section extending rearwardly from a forward edge of the sieve and a slat or louvered section downstream of the air foil section. The air foil section provides a first level of cleaning to the threshed materials deposited on the grain cleaning area while the slat section provides a second level of cleaning to the material received thereon. Preferably, the air foil section comprises about 60% to about 85% of the grain cleaning area.
Matousek Robert A.
Ricketts Jon E.
Wildfong Richard D.
Case Corporation
Gowling Lafleur Henderson Llp
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