Patent ID: 9583132
Date: 2017-02-28
CPC Classifications: G11B

Claim:
1. A device for rotary driving of at least one round disk, the device comprising: a stator disposed fixedly relative to a frame, the frame having electromagnets attached thereto; a rotor rotatably drivable relative to the stator; the rotor comprising a concentric ring to which the peripheral edge of the disk is connected, the ring having at least one surface; the stator having an encircling recess including at least one surface area, the form of which corresponds to that of the ring such that the ring fits with clearance into the recess; magnetically active elements on the at least one surface of the ring, which elements are placed angularly equidistant and the poles of which debouch on the at least one surface of the recess; poles of the electromagnets are equally placed equidistantly on the surface of the recess; and wherein the ring with the magnetically active elements and the frame with the electromagnets together form an annular induction motor.