Patents by Inventor Andre Dumont

Andre Dumont 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).

  • Process for producing a toroidal winding of small dimensions and optimum geometry
    Patent number: 4724603
    Abstract: This process produces a small toroidal winding used, for example, to make very stable, thin magnetic magnatometers. To produce a winding having turns which are perfectly radial with respect to a cylinder, use is made of an internal cylinder and an external cylinder provided with slots arranged along the generatrixes of these cylinders. Hairpin-shaped conductive wires are introduced into these slots and welded to one another.
    Type: Grant
    Filed: August 1, 1986
    Date of Patent: February 16, 1988
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Roland Blanpain, Andre Dumont
  • Gradient meter with thin magnetic layer
    Patent number: 4703266
    Abstract: Gradient meter to measure the spatial derivatives.DELTA.Hi/.DELTA.j (i=x, y, z ; j=x, y, z)of a magnetic field.This gradient meter comprises two magnetic sonds (7a, 7b) with thin layer, of which the geometric axes of the counterreaction windings are aligned in the direction of axis i, said sonds being spaced from each other along the axis j, the counterreaction current of the first sond being injected in the second sond, the counterreaction current of said second sond being then representative of the value.DELTA.Hi/.DELTA.jto be measured.
    Type: Grant
    Filed: March 2, 1981
    Date of Patent: October 27, 1987
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Guy Chiron, Andre Dumont