Patents by Inventor Olivier Marchais

Olivier Marchais 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).

  • Vibrating beam gyroscopic measuring apparatus
    Patent number: 5597955
    Abstract: A rate gyro or a gyroscope includes a resonator having four mutually parallel identical beams integral with a common square base and projecting from the base at corners of a virtual square. The beams have a same resonant frequency in two directions parallel to the two sides of the square base. It further has first transducers for vibrating each beam in a first direction orthogonal to the beams, connected to a driving circuit and second transducers for detecting an amplitude of vibration of the beams in a second direction each orthogonal to a respective first direction.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: January 28, 1997
    Assignee: Societe D'Applications Generales D'Electricite et de Mecanique Sagem
    Inventors: Pierre Leger, Olivier Marchais, Francis Bienaime