Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
J. Bradley Lukac0
Kevin S. Schwinn0
Date of Patent
January 12, 2010
Patent Application Number
11444227
Date Filed
May 30, 2006
Patent Citations Received
Patent Primary Examiner
Patent abstract
A method and a system for varying the rotational fan speed of a combine cleaning system in response to the amount of crop entering the combine cleaning system. Increases and decreases in crop material entering the cleaning system are sensed prior to their arrival at the cleaning system, and cleaning fan speed is adjusted appropriately and contemporaneously with the crop material's presence in the cleaning system.
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