Planetary gear transmission systems or components – Input from independent power sources – Including electric motor input
Reexamination Certificate
2005-09-20
2005-09-20
Pang, Roger (Department: 3681)
Planetary gear transmission systems or components
Input from independent power sources
Including electric motor input
C074S331000
Reexamination Certificate
active
06945893
ABSTRACT:
A hybrid powertrain system is provided that includes a first prime mover having a rotational output, a second prime mover having a rotational output, and a transmission having a main shaft supporting at least two main shaft gears thereon. The transmission includes a first independent countershaft drivingly connected to the first prime mover and including at least one ratio gear supported thereon that meshes with a respective main shaft gear. A second independent countershaft is drivingly connected to the second prime mover and includes at least one ratio gear supported thereon that meshes with a respective main shaft gear. The ratio gears on the first and second countershafts cooperate with the main shaft gears to provide at least one gear ratio between the first and second countershafts and the main shaft. A shift control mechanism selectively engages and disengages the first and second countershafts for rotation with the main shaft.
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International Search Report, 3 pages.
Grillo Ricardo C.
O'Neil Walter K.
Preston David M.
Eaton Corporation
Pang Roger
Rader & Fishman & Grauer, PLLC
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