Patents by Inventor Monique Moisan

Monique Moisan 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).

  • Apparatus for the production of preforms for optical fibers
    Patent number: 4944244
    Abstract: It realizes the chemical vapour phase deposition method using a plasma maintained by surface waves in a tube (2) for obtaining a preform and comprises photodetection means (50) sensitive to the light emitted by the deposition area (54) of the vitreous coating resulting from the reaction between appropriate gaseous compounds and able to supply information relative to the emission area of said light, and means (52) for controlling the displacement of the deposition area, displacement being such that the thickness of the coating is uniform in the tube, and control means controlling the power of the microwave generator (30) of the apparatus as a function of the information. Application to the field of telecommunications.
    Type: Grant
    Filed: March 14, 1989
    Date of Patent: July 31, 1990
    Assignee: Etat Francais Represente Par Le Ministere Des Postes
    Inventors: Monique Moisan, Dominique Pavy, Marie-Eve Davoust, Serge Saada, Patrick Chollet