Patents by Inventor Michele Leduc

Michele Leduc 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).

  • Laser-pumped helium magnetometer
    Patent number: 4806864
    Abstract: A magnetometer comprises a transparent spherical photocell (1) filled with natural helium 4He. A laser (2) of the LNA (lanthanum-neodymium aluminate) type excites the photocell. An oscillator (3) generates a soft discharge inside the photocell (1). The electronic magnetic resonance frequency of helium atoms in the excited metastable state is determined on the basis of the light (FT) transmitted by the photocell, under excitation by a radio electric field, and the magnetic induction is thereby found.
    Type: Grant
    Filed: April 23, 1987
    Date of Patent: February 21, 1989
    Assignee: Centre National De La Recherche Scientifique
    Inventors: Laird Schearer, Michele Leduc, Franck Laloe, Joseph M. Hamel
  • Aircraft pilot-training apparatus
    Patent number: 4790755
    Abstract: An apparatus for training aircraft pilots wherein the apparatus includes a boom defined by a central bracket, a large rigid arm and a small rigid arm collectively supported on a vertical mast for pivotal movement about horizontal and vertical axes. The large and small arms extending outwardly from the mast along a common longitudinal axis, the outward end of the small arm being provided with an adjustable balance weight and the outward end of the big arm being provided with a sling for suspending an aircraft at its center of gravity.
    Type: Grant
    Filed: February 20, 1987
    Date of Patent: December 13, 1988
    Inventors: Rene Leduc, Michele Leduc