Patent ID: 8016714

Claim:
A multiple speed power transmission, comprising: an input shaft ( 30 , 90 ); a transmission case ( 34 , 94 ); a first co-planar gear set ( 36 , 96 ) comprising a first sun ( 38 , 98 ), a first ring ( 40 , 100 ), a first carrier ( 42 , 102 ), and a first eccentric gear ( 44 , 104 ) supported by the first carrier and meshing with both the first sun and the first ring; a rear epicyclic gearing assembly ( 50 , 110 ) comprising first ( 60 , 112 ), second ( 54 and 62 , 118 and 124 ), third ( 56 , 116 and 126 ), and fourth ( 52 , 122 ) rotating members such that the speeds of the second and third rotating members are a weighted average of the speeds of the first and fourth rotating members; and an output shaft ( 32 , 92 ) connected to the second rotating member ( 54 and 62 , 118 and 124 ).