Patents by Inventor Julien Fournet

Julien Fournet 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).

  • Induction probe for the measurement of magnetic susceptibility
    Patent number: 4277750
    Abstract: The probe comprises two inductance windings mounted in opposition and conted to an a.c. generator, a measurement winding placed at right angles between the two inductance windings and a measurement voltage detector. A compensation winding is placed coaxially and symmetrically with the measurement winding in relation to the axis of the inductance windings, thus permitting enhanced sensitivity of the probe and a directional effect. Potential applications include continuous recording of magnetic susceptibility along a vertical borehole wall and ore sorting on a conveyor belt.
    Type: Grant
    Filed: February 22, 1979
    Date of Patent: July 7, 1981
    Assignee: Compagnie Generale des Matieres Nucleaires (COGEMA Groupe C.E.A.)
    Inventors: Jean Bonnet, Julien Fournet