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Rotary drive design

  • US 8,955,417 B2
  • Filed: 06/03/2011
  • Issued: 02/17/2015
  • Est. Priority Date: 06/04/2010
  • Status: Active Grant
First Claim
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1. A rotary drive having:

  • a drive cavity defined by a side wall, the side wall being intended for contact with a counter element during the rotary drive having a substantially cylindrical basic shape,wherein a distance of the side wall from a center axis of the drive cavity varies between a minimum radius and a maximum radius for formation of alternating projections and recesses, andwherein the side wall is situated in a region lying in a radial direction between the maximum and minimum diameter of the drive cavity, on a respective conical surface of a respective cone tapering into an interior of the drive cavity,a cone axis of which cone is outwardly offset in the radial direction in relation to the axis of the drive cavity, the cone axis of which cone is outwardly offset in the radial direction in relation to the axis of the drive cavity.

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