Patents by Inventor Jean-Marc Dufaud

Jean-Marc Dufaud 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 and method for extended distance cutting by laser, in pulse mode
    Patent number: 6476350
    Abstract: The invention relates to a device for laser cutting, having: means (2) for emitting a pulsed laser beam, with energy pulses E≧10 joules, at least one optical fiber (4) for transmitting the laser pulses, from the means of emitting the laser beam in the direction of a piece (6) to be cut, means of focusing the laser beam. The invention also relates to a method for the laser cutting, at a distance, of a piece to be cut. Application to the dismantling and/or taking apart of an installation.
    Type: Grant
    Filed: March 29, 2000
    Date of Patent: November 5, 2002
    Assignee: Commissariat A l'Energie Atomique
    Inventors: Jean-Paul Grandjean, Jean-Marc Dufaud, Jean-Pascal Alfille, Patrick Meyrueis, Patrice Twardowski