Patents by Inventor Wolfgang Ortmann

Wolfgang Ortmann 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 bearing cage
    Patent number: 6238098
    Abstract: A roller bearing cage has cage rims (1,3) on both of its axial ends. One cage rim (1) has a circumferential inside groove (5). The other cage rim (3) carries at least one holding lug (7) that protrudes radially. The holding lug (7) interlocks into the corresponding groove (5) of another such cage, wherein roller bearing cages with two or more rows are formed as a construction unit, which can rotate relative to one another.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: May 29, 2001
    Assignee: The Torrington Company
    Inventors: Wolfgang Knoll, Wolfgang Ortmann
  • Transportation and mounting sleeve for row of rolling element
    Patent number: 4976551
    Abstract: A transportation and mounting sleeve for a row of needles, rollers, or the like rolling elements, supported in an outer ring for installation in a bearing. The sleeve disposed inside the row of rolling elements is comprised of resilient plastic material and has a rounded polygonal shape, as seen in axial top view, and particularly a triangular shape, wherein the distance between at least two of the corners of the polygon is greater than the diameter of the envelope circle of the opening radially inside the rolling elements.
    Type: Grant
    Filed: January 11, 1990
    Date of Patent: December 11, 1990
    Assignee: FAG Kugelfischer Georg Schafer (KGaA)
    Inventors: Gunter Scharting, Wolfgang Ortmann