Patents by Inventor Claude Leclerco

Claude Leclerco 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).

  • Method, assembly and additional coat for the construction of interior works
    Publication number: 20030084633
    Abstract: The present invention provides a construction assembly for interior works, comprising:
    Type: Application
    Filed: December 3, 2002
    Publication date: May 8, 2003
    Inventors: Francois Zuber, Claude Leclerco, Pascal Bourne-Chastel, Elizabeth A. Colbert, Pierre Gagne, Roland Boucher, Sylvie Bilodeau
  • Interferometer gyroscope with electro-optical modulation and reduced reset frequency
    Patent number: 5311281
    Abstract: The gyroscope is based on the Sagnac effect and comprises a coiled dielectric waveguide, a source of electromagnetic waves provided with a splitter for sending two contrarotating waves from the source round the ring and an interference detector receiving the contrarotating waves. An electro-optical modulator is controlled to impart periodic alternating and symmetrical phase modulation to the waves at a period that is substantially twice the travel time in the waveguide. The modulator is placed upstream from the waveguide for one wave and downstream for the other. A second modulator receives the output of a phase shift sawtooth generator of adjustable slope and is placed upstream from the waveguide for one wave and downstream for the other. An electronic measurement circuit controls the direction and the value of the slope of the sawtooth to cancel the phase difference of the waves received by the interference detector.
    Type: Grant
    Filed: July 27, 1992
    Date of Patent: May 10, 1994
    Assignee: Societe d'Applications Generales d'Electricite
    Inventors: Jacques Rochereau, Claude Leclerco