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Patent Searching and Data


Title:
AIR BOOST TO IMPROVE STRAW CHOPPER SPREADING IN A COMBINE HARVESTER
Document Type and Number:
WIPO Patent Application WO2005022980
Kind Code:
A3
Abstract:
A combine harvester with a straw separating system includes a straw chopper and discharge assembly mounted for receiving the straw and having a rotor for chopping the straw and for generating a stream of chopped straw for spreading the chopped straw. A pneumatic air source is provided preferably separately driven from and remote from the rotor for generating a stream of air having an outlet duct forming a stream of air. The air is used either to assist the spreading action from the chopper and can be individually controlled by valves. If used to assist the air stream of the chopper it is fed at the outlet of a rear chopper or directed at the guide wall in an internal chopper arrangement for directing higher velocity air onto the guide fins assisting the spread of the chopped materials.

Inventors:
REDEKOP LEO (CA)
REDEKOP KEVIN (CA)
MAYERLE DEAN (CA)
Application Number:
PCT/CA2004/001599
Publication Date:
May 19, 2005
Filing Date:
September 09, 2004
Export Citation:
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Assignee:
REDEKOP CHAFF SYSTEMS LTD (CA)
REDEKOP LEO (CA)
REDEKOP KEVIN (CA)
MAYERLE DEAN (CA)
International Classes:
A01D41/12; A01F29/12; (IPC1-7): A01F29/00
Domestic Patent References:
WO2000078126A12000-12-28
WO2001001754A12001-01-11
Foreign References:
US6251009B12001-06-26
US3840022A1974-10-08
CA2142218C1999-06-15
US5120275A1992-06-09
US4526180A1985-07-02
GB792415A1958-03-26
US4735216A1988-04-05
US20030003974A12003-01-02
US20020142814A12002-10-03
Other References:
See also references of EP 1662857A4
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