Patents by Inventor Willi Parsch

Willi Parsch 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).

  • Valve assembly
    Patent number: 5513672
    Abstract: A valve assembly for controlling volume flow from a discharge device to an actuator and including a discharge throttle, and a flow control valve for controlling flow through the throttle and having a piston, and end portion of which overlaps a channel for returning excess fluid to a suction side of the discharge device and has an end region forming a seated valve preventing leakage past the end region, when the end region completely overlaps the return channel.
    Type: Grant
    Filed: May 27, 1994
    Date of Patent: May 7, 1996
    Assignee: LUK Fahrzeug-Hydraulik GmbH & Co. KG
    Inventors: Van Doan Nguyen, Yuejin Gong, Randolf Kortge, Hans-Jurgen Lauth, Gerhard Overdiek, Willi Parsch, Thomas Nied-Menninger