Patents by Inventor Johannes K. Duerr

Johannes K. Duerr 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).

  • Publication number: 20080173754
    Abstract: A method for damping vibrations in a tail boom of a rotary-wing aircraft includes the steps of detecting tail boom vibrations induced by external vibration excitation, and generating and introducing strains into the tail boom based on the detected tail boom vibrations. The strains are applied over a surface area and are out-of-phase with respect to the detected tail boom vibrations so as to damp the externally excited induced tail boom vibrations. In addition, a rotary-wing aircraft, includes a fuselage, a cockpit area integrated into the fuselage, a tail boom arranged on the fuselage and a tail boom vibration-damping device.
    Type: Application
    Filed: October 5, 2007
    Publication date: July 24, 2008
    Applicant: Airbus Deutschland GmbH
    Inventors: Henning Strehlow, Heiner Rottmayr, Johannes K. Duerr, Helmut W. Zaglauer
  • Patent number: 6703766
    Abstract: A fiber composite component has a piezoelectric actuator or sensor integrated therein. Electric feed lines for the actuator or sensor are constructed in the form of electrically insulated thin wires which exit the fiber composite almost perpendicularly to the laminate layers, so that the fibers of the fiber composite component are not severed by the leading-out of the feed lines, but are slightly pushed apart.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: March 9, 2004
    Assignee: Dornier GmbH
    Inventor: Johannes K. Duerr
  • Publication number: 20020021058
    Abstract: A fiber composite component has a piezoelectric actuator or sensor integrated therein. Electric feed lines for the actuator or sensor are constructed in the form of electrically insulated thin wires which exit the fiber composite perpendicularly to the laminate layers, so that the fibers of the fiber composite component are not severed by the leading-out of the feed lines, but are pushed apart.
    Type: Application
    Filed: June 25, 2001
    Publication date: February 21, 2002
    Inventor: Johannes K. Duerr