Patents by Inventor Hans-Juergen Diekmann

Hans-Juergen Diekmann 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).

  • Device for detecting membrane leaks in a diaphragm pump
    Patent number: 6498496
    Abstract: Device to detect leaks and fatigue in membranes wherein the membrane consists of at least two membrane layers, and wherein at least one of the membrane layers includes a conductor on its inner surface that causes an alteration to a measured value in case of an alteration to either the membrane or the conductor.
    Type: Grant
    Filed: August 21, 2000
    Date of Patent: December 24, 2002
    Inventors: Heinz Keller, Gerhard Rohner, Jens Plechinger, Hans-Juergen Diekmann, Eberhard Bock
  • Dual-mode twin-chamber thrust bearing having hydraulic damping
    Patent number: 6378852
    Abstract: A dual-mode twin-chamber thrust bearing having hydraulic damping has a working chamber and an equalizing chamber, which are separated by a partition. The chambers are hydraulically connected by a damping channel or optionally by other vibration-damping devices. The partition is provided in its center with a passage that is closable by an actuator, and the outer wall of the equalizing chamber formed by an elastic bellows. The actuator and the elastic bellows form an integral component, which is displaced by an electric motor via an actuator mechanism.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: April 30, 2002
    Assignee: Firma Carl Freudenberg
    Inventors: Gerd-Heinz Ticks, Hans-Jürgen Diekmann