Motor vehicles – Having four wheels driven – Including pump and fluid motor – or generator and electric...
Reexamination Certificate
2005-02-28
2008-10-28
Winner, Tony H. (Department: 3611)
Motor vehicles
Having four wheels driven
Including pump and fluid motor, or generator and electric...
C180S235000
Reexamination Certificate
active
07441623
ABSTRACT:
A multi-motor drive system for a work machine has a first traction device and a second traction device substantially aligned transversely of a primary travel-direction of the work machine. The drive system also has a first drive-group power-transfer system that connects the first traction device and the second traction device. The drive system may also include a third traction device and a fourth traction device substantially aligned transversely of the primary travel-direction of the work machine. Further, the drive system also includes a second drive-group power-transfer system that connects the third traction device and the fourth traction device. Additionally, the drive system has an inter-group power-transfer system that connects the first drive-group power-transfer system to the second drive-group power-transfer system. A first drive motor may operatively connect to the first drive-group power-transfer system separate of the inter-group power-transfer system. Moreover, the drive system may include a second drive motor operatively connected to the second drive-group power-transfer system separate of the inter-group power-transfer system.
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Casey Kent A.
Moring Rodger L.
Caterpillar Inc.
Finnegan, Henderson, Farabow, Garrett & Dunner.
Winner Tony H.
LandOfFree
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