Patents by Inventor Matthias Fahrian

Matthias Fahrian 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: 6952973
    Abstract: In a method for fastening a torque measurement device for detecting a relative torque between an input shaft and an output shaft of a steering system, e.g., of a rack-and-pinion power-assisted steering system, the torque measurement device is integrally formed locally into the input shaft and/or the output shaft by deformation elements.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: October 11, 2005
    Assignee: ZF Lenksysteme GmbH
    Inventors: Wolfgang Abele, Matthias Fahrian, Gerhard Ruf, Stefan Froehlich, Werner Habbel, Thomas Weese, Anton Wettemann, Christoph Ziller
  • Publication number: 20040144187
    Abstract: In a method for fastening a torque measurement device (4) for detecting a relative torque between an input shaft (2) and an output shaft (3) of a steering system (1), in particular of a rack-and-pinion power-assisted steering system, the torque measurement device (4) is integrally formed locally into the input shaft (2) and/or the output shaft (3) by means of deformation elements (8).
    Type: Application
    Filed: November 25, 2003
    Publication date: July 29, 2004
    Inventors: Wolfgang Abele, Matthias Fahrian, Gerhard Ruf, Stefan Froehlich, Werner Habbel, Thomas Weese, Anton Wettemann, Christoph Ziller
  • Patent number: 6629545
    Abstract: A cut-off valve for power steering systems, especially for automobiles, includes a source of a pressure and a container, and is used for limiting a pressure in at least one pressure chamber. The cut-off valve also includes a closing body, which may be adjusted against the force of a spring and a fixed throttling point, which is located in a connecting line between the pressure chamber that is subjected to a first pressure and a pressure chamber that is subjected to a second pressure. The cross-section of the throttling point may be regulated without being disassembled from the outside. By altering the cross-section of the throttle point, it is possible to reduce the width of the tolerance zone or the width of the hysteresis of the valve characteristics to approximately half of the original size.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: October 7, 2003
    Assignee: ZF Lenksysteme GmbH
    Inventors: Matthias Fahrian, Jörgen Schöffel