Crop threshing or separating – Concave – Grid or grate
Reexamination Certificate
2007-01-16
2007-01-16
Petravick, Meredith C. (Department: 3671)
Crop threshing or separating
Concave
Grid or grate
C460S107000
Reexamination Certificate
active
10832884
ABSTRACT:
A device for changing throughgoing openings through which grain passes in a separating area of a concave in an agricultural harvester in which the concave is composed of at least one frame, and a plurality of beater strips and wires which form therebetween the throughgoing openings the concave separating area, the device comprising an adjusting device composed of a plurality of individual tines which are in operative connection with one another through at least one tine strip, a switching shaft, and at least one cam arranged on the switching shaft and controlling the tine strip, wherein the adjusting device is being configured so as to change a size of the throughgoing openings so as to determine a comminution degree of a product mat between a threshing drum and the concave.
REFERENCES:
patent: 489724 (1893-01-01), Watts
patent: 941037 (1909-11-01), Pachke
patent: 993193 (1911-05-01), Pelican
patent: 1269109 (1918-06-01), Noack
patent: 4875891 (1989-10-01), Turner et al.
patent: 38 32 996 (1989-04-01), None
Esken Dirk
Schwersmann Berthold
CLAAS Selbstfahrende Erntemaschinen GmbH
Petravick Meredith C.
Striker Michael J.
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