Patent ID: 9347540
Filing Date: 2016-05-24
CPC Classification: B04B,F16H,Y10T

Claim Text:
1. A drive assembly for rotating a first structure about a first axis at a first angular velocity and rotating a second structure coaxially with the first structure at a second angular velocity comprising: a drive motor for rotating the first structure at the first angular velocity; a stationary gear mounted coaxially with the first structure; and a drive linkage comprising a shaft secured to the first structure so as to be rotatable therewith, the shaft being operatively connected on a first end to the stationary gear so that the shaft is rotated about its axis as the first structure is rotated relative to the stationary gear by the drive motor, the shaft being operatively connected on a second end to the second structure so that when the shaft is rotated, the shaft rotates the second structure, wherein the first structure comprises a first arm and a second arm, the second structure being rotatably secured to the first arm and the first arm being pivotably connected to the second arm, and the shaft being flexible to accommodate the pivoting of the first arm to the second arm.