Crop threshing or separating – Cleaner – Sieve or grate
Reexamination Certificate
2005-05-10
2005-05-10
Will, Thomas B. (Department: 3671)
Crop threshing or separating
Cleaner
Sieve or grate
Reexamination Certificate
active
06890253
ABSTRACT:
A slat and a sieve assembly. The sieve assembly comprises a frame, a slat supported by the frame, and a rotational drive mechanism supported by the frame. In some constructions and in some aspects, the slat extends at least 180° about an axis and has a cross-section having a uniform radius in relation to the axis. The slat includes spaced finger-like indentations being defined on an edge of the slat. The slat is couplable to the rotational drive mechanism for rotation about the axis. In some constructions and in some aspects, the rotational drive mechanism includes a pinion connected to the end of the slat, and a drive shaft including a worm gear engaging the pinion and rotatably supported by the frame to rotate about a drive axis. In some constructions and in some aspects, the slat may include a cross-section having a first adjustment cavity and a second adjustment cavity. The sieve assembly may also include a plurality of slats extending substantially parallel to one another with a space being defined between adjacent slats.
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Farm Show Magazine, “Remote-controlled Combine Sieve Adjuster”, vol. 23, issue 3, p. 4 (1999).
Bickel Donald W.
Jones Dennis J.
Mammen David W.
HCC Inc.
Mammen Nathan
Michael & Best & Friedrich LLP
Will Thomas B.
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