Patents by Inventor Damien Ponthenier

Damien Ponthenier 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 for producing a block of crystalline material with modulation of the thermal conductivity
    Patent number: 8172944
    Abstract: The device for producing a block of crystalline material from a bath of molten material comprises a crucible having a bottom and heat extraction means arranged under the crucible. It also comprises means for modulating the thermal conductivity fitted between the bottom of the crucible and the heat extraction means. The means for modulating the thermal conductivity comprise a plurality of plates made from thermally conducting material of low emissivity, parallel to the bottom of the crucible, and means for moving said plates closer to and away from one another.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: May 8, 2012
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Florence Servant, Denis Camel, Benoit Marie, Damien Ponthenier
  • Device for producing a block of crystalline material with modulation of the thermal conductivity
    Publication number: 20090013925
    Abstract: The device for producing a block of crystalline material from a bath of molten material comprises a crucible having a bottom and heat extraction means arranged under the crucible. It also comprises means for modulating the thermal conductivity fitted between the bottom of the crucible and the heat extraction means. The means for modulating the thermal conductivity comprise a plurality of plates made from thermally conducting material of low emissivity, parallel to the bottom of the crucible, and means for moving said plates closer to and away from one another.
    Type: Application
    Filed: July 3, 2008
    Publication date: January 15, 2009
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE
    Inventors: Florence Servant, Denis Camel, Benoit Marie, Damien Ponthenier