Patents by Inventor Stephan Klüttermann

Stephan Klüttermann 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).

  • Hydraulic system for damping the motion of rotation of a swivel joint between two vehicle parts of an articulated vehicle, of an articulated bus for example
    Patent number: 6422584
    Abstract: A hydraulic system for damping the motion of rotation of a swivel joint between two vehicle parts of an articulated vehicle, of an articulated bus for example, comprising a hydraulic damping device as well as an electrically triggerable proportional pressure control valve, whereas the proportional pressure control valve is arranged between the force side and the suction side of the damping device, a mechanical pressure control valve (103) being provided in addition to the proportional pressure control valve (104) in the conduit between the suction side and the force side of the damping device, and whereas a multiple-way valve is provided for the alternative drive of the pressure control valve (103) or of the proportional pressure control valve (104).
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: July 23, 2002
    Assignee: Hubner Gummi-und Kunstoff GmbH
    Inventors: Uwe Bittroff, Sven Kloppmann, Hans-Uwe Schmelzer, Stephan Klüttermann