Planetary gear transmission systems or components – With means to vary drive ratio or disconnect drive – Nonplanetary gearing combined with planetary
Reexamination Certificate
2008-06-23
2011-11-29
Pang, Roger (Department: 3655)
Planetary gear transmission systems or components
With means to vary drive ratio or disconnect drive
Nonplanetary gearing combined with planetary
C475S313000
Reexamination Certificate
active
08066612
ABSTRACT:
A transmission is provided having an input member, an output member, three planetary gear sets, four external 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. Each of the external gear sets includes first and second gears. The torque transmitting devices may include clutches and brakes.
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patent: 7857726 (2010-12-01), Borgerson
patent: 7896772 (2011-03-01), Wittkopp et al.
patent: 2009/0054197 (2009-02-01), Wittkopp et al.
patent: 2009/0082157 (2009-03-01), Wittkopp et al.
patent: 2009/0082158 (2009-03-01), Wittkopp et al.
patent: 2009/0082159 (2009-03-01), Phillips et al.
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patent: 2009/0082167 (2009-03-01), Wittkopp et al.
patent: 2010/0029433 (2010-02-01), Tenberge
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Carey Clinton E.
Hart James M.
Phillips Andrew W.
Wittkopp Scott H.
GM Global Technology Operations LLC
Pang Roger
LandOfFree
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