Combine harvester with a spreader having independent spread...

Details Combine harvester with a spreader having independent spread... Combine harvester with a spreader having independent spread...

2005-09-06

2005-09-06

Petravick, Meredith (Department: 3671)

Crop threshing or separating

Straw chaff spreader or handling

C460S901000

Reexamination Certificate

active

06939221

ABSTRACT:
A straw and chaff chopper is mounted at the rear hood of a combine harvester and includes a housing with a feed opening and a discharge opening and a rotor mounted in the housing comprising a hub with a plurality of blades mounted on the hub for chopping the fed materials and accelerating the chopped materials for discharge. A tailboard has a plurality of guide fins arranged relative to the housing so as to receive the chopped materials from the discharge opening to engage onto a guide surface and guide fins of the tailboard construction for spreading of the chopped materials. The tailboard is divided longitudinally into first and second separate tailboard portions, each arranged to receive a portion of the chopped materials and each being adjustable in angle to raise and lower independently of the other so as to provide a different spreading effect on the portion received thereon. Fins on the portions prevent the materials entering the gap. Adjustment on the go from the cab can be provided.

REFERENCES:
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patent: 2708582 (1955-05-01), Adams
patent: 4489734 (1984-12-01), Van Overschelde
patent: 4669489 (1987-06-01), Schraeder et al.
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patent: 6729953 (2004-05-01), Bueermann
patent: 2002/0072400 (2002-06-01), Foth
patent: 2003/0162576 (2003-08-01), Bueermann
patent: 2004/0043804 (2004-03-01), Redekop

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