Patents by Inventor Ernst Pees

Ernst Pees 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: 5488910
    Abstract: On truck frames having three wheelsets, the invention teaches that the middle wheelset is in contact on each side with the vehicle frame by means of actuators in the lateral direction. These actuators are used to adjust the middle wheelset when the train travels through curves toward the outside of the curve, as a function of the angle of rotation of the truck frame, which is determined by means of measurement elements.
    Type: Grant
    Filed: January 11, 1994
    Date of Patent: February 6, 1996
    Assignee: Krupp Verkehrstechnik GmbH
    Inventors: Ernst Pees, Hans-Dieter Schaller
  • Patent number: 5429056
    Abstract: On undercarriages for railway vehicles with at least four wheelsets which are combined into trucks, the invention teaches that force-controlled or displacement-controlled actuators are located on the end wheelsets of the trucks. These actuators thereby act on the wheelset bearings, and in terms of their effect, they are connected in parallel, in the case of the force-controlled actuators, and in series, in the case of the displacement-controlled actuator with a wheelset restraint. This system makes possible a controlled rotation of the wheelset in relation to the truck frame.
    Type: Grant
    Filed: November 23, 1993
    Date of Patent: July 4, 1995
    Assignee: Krupp Verkehrstechnik GmbH
    Inventors: Ernst Pees, Hans-Dieter Schaller