Patents by Inventor Maria Dias De Sousa

Maria Dias De Sousa 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-heating device for surface treating the teeth of a mechanical part
    Patent number: 6011246
    Abstract: An induction heating device for surface treating the teeth (11) of a mechanical part on which each tooth (111) has a projecting tip (111s) and a tooth root linking the tooth to an adjacent tooth, wherein an in duction coil (12, 12') is spaced from the tooth tips and powered by at least one high-frequency current source. The coil consists of a set of conductive segments (24, 24') individually orthogonal to the generatrix (d, d') of the teeth, located above respective tooth tips and interconnected via connecting segments (25, 25').
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: January 4, 2000
    Assignees: Renault, Ensam Bordeaux, Saet
    Inventors: Giorgio Bonzano, Bernard Criqui, Maria Dias De Sousa, Olivier Longeot