Patents by Inventor Marie-Claire Stassart

Marie-Claire Stassart 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).

  • Device for maintaining constant the temperature of a coil fed by an A.C. current source
    Patent number: 3939403
    Abstract: A measuring coil comprises two windings, each being formed by winding simultaneously two insulated wires having the same size, the two wires of each winding extending side by side. The windings formed by the single turns of the wires in each winding are interconnected in such a way that the magnetic effects are additive in the wires of a first of said windings and subtractive in the wires of the second winding. The single turns of the first wire in each of the two windings form the measuring coil to be fed by an alternating current and the single turns of the second wire in each of said two windings form both a sensing element for measuring the temperature of the measuring coil and/or a heating element to be fed by an adjustable direct current for maintaining the coil temperature at a predetermined value with a high accuracy.
    Type: Grant
    Filed: June 3, 1974
    Date of Patent: February 17, 1976
    Inventor: Marie-Claire Stassart