Patents by Inventor Oliver Graf-Goller

Oliver Graf-Goller 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: 9239080
    Abstract: A rolling bearing (6), in particular for the mounting of the shaft of a turbocharger, which rolling bearing includes a bearing ring (1) and a number of rolling bodies (9). The bearing ring (1) is formed from a steel which comprises, as alloy constituents, 0.05 to 0.65 wt % carbon, 0.5 to 5.0 wt % chromium, up to 1.0 wt % molybdenum, up to 1.0 wt % vanadium, and up to 1.0 wt % aluminum. The surface of the bearing ring (1) has a hardened surface layer (2) which comprises nitrites and which comprises a diffusion layer (3) and a connecting layer (4) situated above said diffusion layer. The surface layer (2) has a thickness of up to 1 mm. The invention also relates to a method for producing a corresponding bearing ring (6).
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: January 19, 2016
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Ernst Strian, Peter Gebauer, Heiko Schmidt, Oliver Graf-Goller
  • Publication number: 20150036959
    Abstract: A rolling bearing (6), in particular for the mounting of the shaft of a turbocharger, which rolling bearing includes a bearing ring (1) and a number of rolling bodies (9). The bearing ring (1) is formed from a steel which comprises, as alloy constituents, 0.05 to 0.65 wt % carbon, 0.5 to 5.0 wt % chromium, up to 1.0 wt % molybdenum, up to 1.0 wt % vanadium, and up to 1.0 wt % aluminum. The surface of the bearing ring (1) has a hardened surface layer (2) which comprises nitrites and which comprises a diffusion layer (3) and a connecting layer (4) situated above said diffusion layer. The surface layer (2) has a thickness of up to 1 mm. The invention also relates to a method for producing a corresponding bearing ring (6).
    Type: Application
    Filed: March 4, 2013
    Publication date: February 5, 2015
    Applicant: Schaeffler Technologies GmbH & Co. KG
    Inventors: Ernst Strian, Peter Gebauer, Heiko Schmidt, Oliver Graf-Goller
  • Publication number: 20130004110
    Abstract: A bearing ring includes a ring element having at least two grooves which extend from one axial side to the other axial side of the ring element and form predetermined breaking lines for cracking the ring element. The ring element is in the form of a sleeve produced by deep-drawing, wherein the grooves are also machined in during the deep-drawing of the sleeve.
    Type: Application
    Filed: February 3, 2011
    Publication date: January 3, 2013
    Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Wolfram Kruhoeffer, Tobias Mederer, Oliver Graf-Goller