Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Scott H. Wittkopp0
Andrew W. Phillips0
Clinton E. Carey0
James M. Hart0
Date of Patent
August 30, 2011
0Patent Application Number
119692710
Date Filed
January 4, 2008
0Patent Primary Examiner
Patent abstract
An automatic transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices may be either brakes or clutches. Eight forward speeds or gear ratios and reverse are achieved by engaging various combinations of the brakes and clutches.
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