Patents by Inventor Francois Vacher

Francois Vacher 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 and device for non destructive evaluation of defects in a metallic object
    Patent number: 8063631
    Abstract: A device for non destructive evaluation of defects in a metallic object (2) by eddy currents, comprises a field emitter (3) for emitting an alternating electromagnetic field at a first frequency fi in the neighborhood of the metallic object (2), and a magnetoresistive sensor (1) for detecting a response signal constituted by a return electromagnetic field which is re-emitted by eddy currents induced by the alternating electromagnetic field in the metallic object (2).
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: November 22, 2011
    Assignee: Commissariat a l'Energie Atomique et aux Energies Alternatives
    Inventors: Claude Fermon, Myriam Pannetier, Nicolas Biziere, Francois Vacher, Thierry Sollier
  • Method and device for non destructive evaluation of defects in a metallic object
    Publication number: 20090206831
    Abstract: A device for non destructive evaluation of defects in a metallic object (2) by eddy currents, comprises a field emitter (3) for emitting an alternating electromagnetic field at a first frequency fi in the neighbourhood of the metallic object (2), and a magnetoresistive sensor (1) for detecting a response signal constituted by a return electromagnetic field which is re-emitted by eddy currents induced by the alternating electromagnetic field in the metallic object (2).
    Type: Application
    Filed: February 24, 2002
    Publication date: August 20, 2009
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE
    Inventors: Claude Fermon, Myriam Pannetier, Nicolas Biziere, Francois Vacher, Thierry Sollier