Patents by Inventor Ferdinand Trier

Ferdinand Trier 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).

  • Pendulum for damping or eliminating low excitation frequencies
    Patent number: 4527951
    Abstract: Low excitation frequencies of a structural component, for example of a heopter rotor blade or the like, are damped or eliminated by a pendulum device connected to the component, the excitation frequency or frequencies of which are to be damped or eliminated. In a helicopter rotor blade the pendulum device is preferably connected to the blade neck near the rotor head. The pendulum device has a plurality of pendulum bodies coupled to each other for forming a multiple pendulum in which these pendulum bodies are so tuned relative to each other that the multiple pendulum has several eigenfrequencies.
    Type: Grant
    Filed: July 11, 1983
    Date of Patent: July 9, 1985
    Assignee: Messerschmitt-Boelkow-Blohm Gesellschaft mit beschrankter Haftung
    Inventor: Ferdinand Trier