Patents by Inventor Christian Lascoutouna

Christian Lascoutouna 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 of ablating a surface layer of a wall, and associated device
    Patent number: 8585824
    Abstract: The invention relates to a method of ablating a surface layer of a wall by sweeping the said layer, comprising: a step of directional control by an optical deflector of a plurality of pulsed laser beams; a step of ablating the layer on impact zones created by the plurality of laser beams, each impact zone being defined by a centre and by a characteristic dimension; the method is characterized in that the impact zones are disjoint, the distance between each centre of the impact zones being equal to at least ten times the largest characteristic dimension of the impact zones. The invention also relates to a corresponding device.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: November 19, 2013
    Assignee: Commissariat à l'Energie Atomique et aux Energies Alternatives
    Inventors: François Champonnois, François Beaumont, Christian Lascoutouna
  • Method and device for laser ablation of a surface coating from a wall, such as a coat of paint in a nuclear plant
    Patent number: 8330073
    Abstract: The invention concerns a method for laser ablation of a surface coating from a wall, such as a painted wall finish, for example in a nuclear plant to be decontaminated, and a device for implementing said method. The inventive ablation method includes sweeping shots on the coating of at least one pulsed laser beam with a laser beam quality factor M2 less than 20, and characterized in that it comprises a direct control of said shots by optical deflection, such that the impact zones (I1, I2, I3,) of said shots on said coating are disjointed or substantially adjacent with minimized overlapping.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: December 11, 2012
    Assignee: Commissariat a l'Energie Atomique
    Inventors: François Champonnois, Philippe Cormont, Marie Geleoc, Christophe Hubert, Christian Lascoutouna, Pierre-Yves Thro, Pascal Wodling
  • METHOD OF ABLATING A SURFACE LAYER OF A WALL, AND ASSOCIATED DEVICE
    Publication number: 20110315666
    Abstract: The invention relates to a method of ablating a surface layer of a wall by sweeping the said layer, comprising: a step of directional control by an optical deflector of a plurality of pulsed laser beams; a step of ablating the layer on impact zones created by the plurality of laser beams, each impact zone being defined by a centre and by a characteristic dimension; the method is characterized in that the impact zones are disjoint, the distance between each centre of the impact zones being equal to at least ten times the largest characteristic dimension of the impact zones. The invention also relates to a corresponding device.
    Type: Application
    Filed: December 18, 2009
    Publication date: December 29, 2011
    Applicant: Commissariat A L'Energie Atomique Et Aux Energies Alternatives
    Inventors: Francois Champonnois, Francois Beaumont, Christian Lascoutouna
  • Method and device for laser ablation of a surface coating from a wall, such as a coat of paint in a nuclear plant
    Publication number: 20090224178
    Abstract: The invention concerns a method for laser ablation of a surface coating from a wall, such as a painted wall finish, for example in a nuclear plant to be decontaminated, and a device for implementing said method. The inventive ablation method includes sweeping shots on the coating of at least one pulsed laser beam with a laser beam quality factor M2 less than 20, and characterized in that it comprises a direct control of said shots by optical deflection, such that the impact zones (I1, I2, I3,) of said shots on said coating are disjointed or substantially adjacent with minimized overlapping.
    Type: Application
    Filed: May 18, 2006
    Publication date: September 10, 2009
    Inventors: Francois Champonnois, Philippe Cormont, Marie Geleoc, Christophe Hubert, Christian Lascoutouna, Pierre-Yves Thro, Pascal Wodling