Patents by Inventor Robert Grull

Robert Grull 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).

  • Publication number: 20100278470
    Abstract: A retaining element is disposed between two adjacent roller bodies of a roller bearing having an inner ring and an outer ring. The inner ring has an inner ring track with an inner radius and the outer ring has an outer ring track with an outer radius. Center points of the roller bodies are disposed along a pitch circle having a pitch circle radius. The retaining element extends radially inward from the pitch circle over at least 90% of the difference between the pitch circle radius and the inner radius and extends radially outward from the pitch circle over up to 50% of the difference between the outer radius and the pitch circle radius or vice versa.
    Type: Application
    Filed: March 31, 2010
    Publication date: November 4, 2010
    Applicant: AKTIEBOLAGET SKF
    Inventors: Robert Grull, Rut Heemskerk, Stefan Pampel, Markus Volkmuth, Jurgen Reichert
  • Patent number: 7073948
    Abstract: A roller bearing (e.g., a cross taper roller bearing) includes an outer ring, an inner ring and rolling elements (e.g., taper rollers) located between the inner and outer rings. The rolling elements are kept at a distance by a cage formed from a number of individual cage segments. Each cage segment has two opposing guide sections for one of the rolling elements to at least partially encompass the rolling element on both sides. In addition, for the rolling elements bordering the one rolling element, the cage segment has guide sections which, in interaction with a corresponding guide section of an adjacent cage segment, at least partially encompass the bordering rolling elements.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: July 11, 2006
    Assignee: AB SKF
    Inventors: Gunter Neder, Rut Heemskerk, Bruno Schemmel, Jurgen Reichert, Robert Grull, Burkard Beck, Alfred Schwappach, Stefan Wagner
  • Publication number: 20050058383
    Abstract: A roller bearing (e.g., a cross taper roller bearing) includes an outer ring, an inner ring and rolling elements (e.g., taper rollers) located between the inner and outer rings. The rolling elements are kept at a distance by a cage formed from a number of individual cage segments. Each cage segment has two opposing guide sections for one of the rolling elements to at least partially encompass the rolling element on both sides. In addition, for the rolling elements bordering the one rolling element, the cage segment has guide sections which, in interaction with a corresponding guide section of an adjacent cage segment, at least partially encompass the bordering rolling elements.
    Type: Application
    Filed: July 30, 2004
    Publication date: March 17, 2005
    Applicant: AB SKF
    Inventors: Gunter Neder, Rut Heemskerk, Bruno Schemmel, Jurgen Reichert, Robert Grull, Burkard Beck, Alfred Schwappach, Stefan Wagner
  • Publication number: 20020061152
    Abstract: An antifriction bearing includes a plurality of rolling elements each having a lateral surface possessing a conical shape, with the rolling elements being positioned between a conical raceway and a cylindrical raceway to roll along the conical raceway and the cylindrical raceway. The lateral surface of each rolling element forms an angle with a center axis of the rolling element that is 3° at maximum, and the lateral surface of each rolling element has a convex curvature that is superimposed on the conical shape. The bearing can also include a first bearing ring having a running surface constituting one of the conical and cylindrical raceways. An antifriction bearing arrangement incorporating such an antifriction bearing is also provided with a stop element having a stop face contacting the end face of each of the rolling elements.
    Type: Application
    Filed: November 23, 2001
    Publication date: May 23, 2002
    Inventors: Klaus Muschiol, Robert Grull, Armin Olschewski, Alfred Weidinger