Patents by Inventor Gérard Albert Félix Fournier

Gérard Albert Félix Fournier 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).

  • Method and device for machining holes or shapes of varying profile using an excimer laser
    Patent number: 6329632
    Abstract: A device for machining a hole or a shape of varying profile in a mechanical workpiece using an excimer laser comprises a screen having an aperture of predetermined shape disposed between the excimer laser and a device for focussing the laser beam, the screen being movable in a plane perpendicular to the laser beam. Control means is provided for automatically controlling displacement of the screen in real time while the hole is being machined in the workpiece, the control being effected as a function of the number of pulses emitted by the excimer laser. As an alternative, the screen may be replaced by a diaphragm comprising variable-aperture shutters.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: December 11, 2001
    Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation “Snecma”
    Inventors: Gérard Albert Félix Fournier, Joël Olivier Alfred Abel Vigneau