Patents by Inventor Helmut Schopplein

Helmut Schopplein 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: 6957919
    Abstract: In a double-row angular contact ball bearing comprising an outer ring (1), an inner ring (2) and two ball crown rings (3, 4) formed by bearing balls (3.1, 4.1) guided in two separate cages (3.2, 4.2) and supported on shoulders (1.1, 1.2, 2.1, 2.2) of said inner and outer rings, ball raceways of the bearing having different diameters, the cages (3.2, 4.2) are made of plastic and configured as window-type cages comprising pockets for receiving the bearing balls (3.1, 4.1), and one of the cages (3.2, 4.2) comprises on an axially inward oriented end, a plurality of spacers (3.5, 4.5) uniformly spaced from one another in peripheral direction, said one cage further comprises a plurality of retaining lugs (3.4, 4.4) uniformly spaced from one another in peripheral direction, which retaining lugs engage a corresponding groove (2.3, 1.3) of one of the inner (2) and the outer ring (1), and the spacers (3.5, 4.5) of the one cage (3.2, 4.2) prevent an axial displacement of the other cage (4.2, 3.2).
    Type: Grant
    Filed: May 8, 2003
    Date of Patent: October 25, 2005
    Assignee: INA-Schaeffler KG
    Inventors: Roland Kern, Tino Beck, Helmut Schopplein
  • Publication number: 20040028306
    Abstract: In a double-row angular contact ball bearing comprising an outer ring (1), an inner ring (2) and two ball crown rings (3, 4) formed by bearing balls (3.1, 4.1) guided in two separate cages (3.2, 4.2) and supported on shoulders (1.1, 1.2, 2.1, 2.2) of said inner and outer rings, ball raceways of the bearing having different diameters, the cages (3.2, 4.2) are made of plastic and configured as window-type cages comprising pockets for receiving the bearing balls (3.1, 4.1), and one of the cages (3.2, 4.2) comprises on an axially inward oriented end, a plurality of spacers (3.5, 4.5) uniformly spaced from one another in peripheral direction, said one cage further comprises a plurality of retaining lugs (3.4, 4.4) uniformly spaced from one another in peripheral direction, which retaining lugs engage a corresponding groove (2.3, 1.3) of one of the inner (2) and the outer ring (1), and the spacers (3.5, 4.5) of the one cage (3.2, 4.2) prevent an axial displacement of the other cage (4.2, 3.2).
    Type: Application
    Filed: May 8, 2003
    Publication date: February 12, 2004
    Inventors: Roland Kern, Tino Beck, Helmut Schopplein