Patents by Inventor Alexander Tietz

Alexander Tietz 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).

  • Patent number: 8721188
    Abstract: A cage for a rolling element bearing and a method for the production thereof. The cage has either an increased number of rolling elements or improved load-bearing capacity. A The cage has a plurality of cage pockets for receiving the rolling elements, two side rings and a plurality of cross-ribs. The cross-ribs connect the side rings such that the cage pockets are formed. The cage pockets have milled-out or drilled-out corner regions. hereinafter collectively referred to as milled-out corner regions, The corner regions, in a cutting plane perpendicular to the axis of rotation of the cage, have a radial milling course in the direction of the axis of rotations. The milling course, at least in a partial section, is configured at an incline with respect to a radial vector placed through the partial section and the axis of rotation, and is configured at an incline in the direction of the cage pocket.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: May 13, 2014
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Hans-Juergen Fandre, Alexander Tietz
  • Publication number: 20110064345
    Abstract: A rolling element for a roller bearing and a corresponding roller bearing for lubrication. To this end, a rolling element for a roller bearing which has a base body with a receptacle and a lubricant depot is proposed. The lubricant depot is disposed in the receptacle, and has a mounting device disposed in the receptacle and forms a boundary surface on the edge for the lubricant depot.
    Type: Application
    Filed: January 23, 2009
    Publication date: March 17, 2011
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventors: Hans-Juergen Fandre, Alexander Tietz
  • Publication number: 20100310203
    Abstract: A cage for a rolling element bearing and a method for the production thereof. The cage has either an increased number of rolling elements or improved load-bearing capacity. The cage has a plurality of cage pockets for receiving the rolling elements, two side rings and a plurality of cross-ribs. The cross-ribs connect the side rings such that the cage pockets are formed. The cage pockets have milled-out or drilled-out corner regions, hereinafter collectively referred to as milled-out corner regions The corner regions, in a cutting plane perpendicular to the axis of rotation of the cage, have a radial milling course in the direction of the axis of rotations. The milling course, at least in a partial section, is configured at an incline with respect to a radial vector placed through the partial section and the axis of rotation, and is configured at an incline in the direction of the cage pocket.
    Type: Application
    Filed: November 12, 2008
    Publication date: December 9, 2010
    Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
    Inventors: Hans-Juergen Fandre, Alexander Tietz