Patents by Inventor Gerard Labaune

Gerard Labaune 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).

  • Variable frequency magnetic field device employing multiple antennae for measuring the surface impedance of a material
    Patent number: 5086274
    Abstract: A surface impedance measurement device comprises a transmitting antenna producing a magnetic field in the area surrounding a material to be tested and a receiving antenna receiving the magnetic field. An electric voltage wobbled in frequency is applied to the transmitting antenna, and a circuit measures the voltage at the terminals of the second antenna. For the antennae to be applied on the same side of the material to be tested and of which the surface impedance is to be measured, the antennae are superposed by the intermediary of a dielectric wedge in a compact probe. The impedance measurements are then independent of the dimensions and geometry of the material.
    Type: Grant
    Filed: June 11, 1990
    Date of Patent: February 4, 1992
    Assignees: Office National d'Etudes et de Recherches Aerospatiales, Avions Marcel Dassault-Breguet Aviation (AMD/BA)
    Inventors: Vincent Gobin, Gerard Labaune, Francois Issac
  • Ignition method and igniter device for igniting carburated gaseous mixtures
    Patent number: 4525140
    Abstract: A flash-spark creeps on a dielectric surface to ignite carburated gaseous xtures. A high voltage pulse is applied through the dielectric between opposite surfaces thereof. The voltage is applied between a first electrode having a smaller area abutting against a first surface of the dielectric and a second electrode having a first strip portion abutting against an opposite second surface of the dielectric and a second portion which is astride an edge of the dielectric. The strip portion ends at a position beneath the first electrode. The first surface is exposed to the carburated gaseous mixture.
    Type: Grant
    Filed: December 22, 1981
    Date of Patent: June 25, 1985
    Assignee: Office National d'Etudes et de Recherches Aerospatiales dit O.N.E.R.A.
    Inventors: Serge Larigaldie, Gerard Labaune