Crop threshing or separating – Threshing – Transverse threshing section
Reexamination Certificate
2005-10-25
2005-10-25
Petravick, Meredith (Department: 3671)
Crop threshing or separating
Threshing
Transverse threshing section
C460S109000
Reexamination Certificate
active
06958012
ABSTRACT:
A concave arrangement is disclosed for a threshing machine such as a combine harvester10. The arrangement includes a concave30having a moveable rear portion48that is adapted to vary the break-over angle presented to straw passing downstream. A flap member54is provided that moves jointly with the moveable rear portion48and ensures that a gap G between the moveable portion48and a later processing stage such as a beater apparatus is kept substantially closed. Variation of the break-over angle influences the length of the straw leaving the threshing machine and the loading of the further separation and cleaning mechanisms.
REFERENCES:
patent: 5190497 (1993-03-01), Heidjann
patent: 5395287 (1995-03-01), Coers
patent: 5743795 (1998-04-01), Kersting
patent: 0092599 (1982-04-01), None
Desnijder Dirk
Devriese Thierry E. G.
Duquesne Frank R. G.
Jonckheere Marc R. M.
Lippens Christiaan A. C.
CNH America LLC
Henkel Rebecca
Maurer Brant T.
Petravick Meredith
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