Planetary gear transmission systems or components – Differential planetary gearing – Differential or nondifferential planetary combined with...
Reexamination Certificate
2009-03-19
2010-11-09
Wright, Dirk (Department: 3655)
Planetary gear transmission systems or components
Differential planetary gearing
Differential or nondifferential planetary combined with...
Reexamination Certificate
active
07828686
ABSTRACT:
A yaw drive assembly for a rotatable system includes an input shaft configured to receive a torque from a yaw drive motor coupled within a body of the rotatable system, wherein the torque facilitates rotating the rotatable system about a yaw axis. The yaw drive assembly includes at least two output shafts configured to receive the torque and transmit a rotational yaw force to the rotatable system, and a differential gear stage operatively coupled to the two output shafts, wherein the differential gear stage includes a differential planetary gear configured to drive a pinion coupled to each of the two output shafts.
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Armstrong Teasdale LLP
General Electric Company
McGinness Esq. James
Wright Dirk
LandOfFree
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