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Good to see John Deere using at least one of the seventeen patents acquired in 1995 from the Bi-rotor combine development by Agri-Technology group out in Kansas.
Patent 5282771 was issued 1-Feb-94 Combine Sieve Leveling Apparatus


http://patft.uspto.gov/netacgi/nph-Parse....1&RS=PN/5282771

The lateral distributor was also designed to enhance rotary combine performance and could be helpful on steeper slopes beyond 15 degrees.
Patent 5338257 was issued16-Aug-94 Combine Sieve Distributor apparatus

Perhaps they will use more of the Bi-Rotor threshing and dual path grainhandling features on their new combines for MY2012.
 
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