Patents by Inventor Rudolf Schulte

Rudolf Schulte 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).

  • Vibration damper
    Patent number: 8881877
    Abstract: A vibration damper includes a cylinder in which a piston fastened to a piston rod executes a translational and a rotational movement relative to the cylinder. The piston is fixed to the piston rod by an axial fastener, and a device for preventing rotation by positive engagement is formed between the piston and the piston rod.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: November 11, 2014
    Assignee: ZF Friedrichshafen AG
    Inventors: Anton Krawczyk, Guido Holtmann, Heinz Sydekum, Uwe Herrmann, Rudolf Schulte, Jörg Rösseler, Ingo Gelhausen, Volker-Oliver Hupperich
  • Vibration Damper
    Publication number: 20110290605
    Abstract: A vibration damper includes a cylinder in which a piston fastened to a piston rod executes a translational and a rotational movement relative to the cylinder. The piston is fixed to the piston rod by an axial fastener, and a device for preventing rotation by positive engagement is formed between the piston and the piston rod.
    Type: Application
    Filed: May 25, 2011
    Publication date: December 1, 2011
    Applicant: ZF Friedrichshafen AG
    Inventors: Anton KRAWCZYK, Guido Holtmann, Heinz Sydekum, Uwe Herrmann, Rudolf Schulte, Jörg Rösseler, Ingo Gelhausen, Volker-Oliver Hupperich
  • Hydropneumatic suspension system
    Patent number: 5046755
    Abstract: A hydropneumatic suspension system having at least one shock and vibration damper including a cylinder-piston unit (2) provided with a gas storer (34) co-acting with a damping valve (60) provided with choke valves (88, 90, 92, 94). The choke valves (88, 90, 92, 94) include valve elements (96) biased with springs (98) in a closing direction of the valve elements (96). The bias tension of the springs (98) is variable by a setting member (100) acting on these springs (98) in common in a closing or opening direction of the valve elements (96). A load-dependent adjustment of the damping can be achieved, as the setting member (100) is driven by the pressure present inside the gas storer (34).
    Type: Grant
    Filed: March 22, 1990
    Date of Patent: September 10, 1991
    Assignee: Hermann Hemscheidit Maschinenfabrik GmbH & Co.
    Inventors: Walter Runkel, Kurt M. Hummel, Rudolf Schulte