Patents by Inventor Alois Leisgang

Alois Leisgang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Roller freewheel
    Patent number: 7690488
    Abstract: A roller freewheel comprises an outer ring which is configured as a sheet metal part shaped without cutting and has a cylindrical outer surface and an inner surface which is provided with clamping ramps, a plurality of clamping rollers which are sprung against the clamping ramps, and a cage which is arranged fixedly in terms of rotation in the outer ring, is configured as a sheet metal part shaped without cutting and to which springs are fastened which are provided for suspending the clamping rollers.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: April 6, 2010
    Assignee: Schaeffler KG
    Inventors: Volker Ploetz, Swen Dörrie, Frieder Altmann, Helmut Kalb, Alois Leisgang
  • ROLLER FREEWHEEL
    Publication number: 20070246319
    Abstract: A roller freewheel comprises an outer ring which is configured as a sheet metal part shaped without cutting and has a cylindrical outer surface and an inner surface which is provided with clamping ramps, a plurality of clamping rollers which are sprung against the clamping ramps, and a cage which is arranged fixedly in terms of rotation in the outer ring, is configured as a sheet metal part shaped without cutting and to which springs are fastened which are provided for suspending the clamping rollers.
    Type: Application
    Filed: February 20, 2007
    Publication date: October 25, 2007
    Inventors: Volker PLOETZ, Swen DORRIE, Frieder ALTMANN, Helmut KALB, Alois LEISGANG