Motor vehicles – Power – Including traction motor of kind driven by noncompressible...
Reexamination Certificate
2011-06-28
2011-06-28
Phan, Hau V (Department: 3618)
Motor vehicles
Power
Including traction motor of kind driven by noncompressible...
C180S305000, C180S306000, C180S307000
Reexamination Certificate
active
07967099
ABSTRACT:
Fluid control propulsion system, machine including the system, and method of controlling the propulsion of a machine having a compacting drum and a wheel mounted on an axle, drum and axle motors operatively connected with the drum and the axle, respectively, and drum and axle pumps operatively connected to an engine and fluidly connected to the pumps. A fluid control orifice disposed in fluid communication between the pumps is selectively disengageable in response to at least one of operator instruction, sensed pressure differential between the drum and axle pumps, and sensed disparity in rotational speed between the drum and axle.
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Caterpillar Paving Products Inc.
Leydig & Voit & Mayer
Meyer Jacob
Phan Hau V
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