Patents by Inventor Olivier Dugne

Olivier Dugne 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 FOR CHARACTERISING PARTICLES BY IMAGE ANALYSIS
    Publication number: 20150300941
    Abstract: A method for characterizing particles including: producing at least one image of the particles of a sample with a scanning electron microscope, capturing and processing the image. The processing includes: for each usable particle, measuring maximum Feret length and minimum Feret width of same; defining a geometric model of the particle from the maximum Feret length and minimum Feret width of same; calculating a projected area of the particle from the geometric model and the minimum Feret width of same; calculating a volume of the particle from the geometric model, the projected area and the maximum Feret length of same; calculating a characteristic particle size on the basis of the geometric model, the minimum Feret width and maximum Feret length; calculating a volume shape factor from the volume and characteristic size.
    Type: Application
    Filed: November 19, 2013
    Publication date: October 22, 2015
    Applicant: Commissariat à l'énergie atomique et aux énergies alternatives
    Inventors: Emmanuelle Brackx, Olivier Dugne, Benoit Boichard, Murielle Bertrand
  • Method for measuring the anisotropy in an element comprising at least one fissile material and a corresponding installation
    Patent number: 7982877
    Abstract: This method comprises the steps of: transmitting a beam of light onto a surface (17) of an element (1) comprising a fissile material, passing the beam of light reflected by the surface into a polarisation analyser (27) having a modifiable analysis direction, transmitting the beam from the polarisation analyser (27) to a device (31) for acquiring digital images, acquiring at least one digital image (31) of the surface (17) of the element (1) and processing the digital image acquired in order to measure the anisotropy. Use, for example, in controlling particles of nuclear fuel for an HTR/VHTR type reactor.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: July 19, 2011
    Assignees: Areva NP, Commissariat a l'Energie Atomique et aux Energies Alternatives
    Inventors: Grégory Maveyraud, Jean-Marie Vallerot, Xavier Bourrat, Olivier Dugne
  • Method for Measuring the Anisotropy in an Element Comprising at Least One Fissile Material and a Corresponding Installation
    Publication number: 20080231855
    Abstract: This method comprises the steps of transmitting a beam of light onto a surface (17) of an element (1) comprising a fissile material, passing the beam of light reflected by the surface into a polarisation analyser (27) having a modifiable analysis direction, transmitting the beam from the polarisation analyser (27) to a device (31) for acquiring digital images, acquiring at least one digital image (31) of the surface (17) of the element (1) and processing the digital image acquired in order to measure the anisotropy. Use, for example, in controlling particles of nuclear fuel for an HTR/VHTR type reactor.
    Type: Application
    Filed: March 16, 2006
    Publication date: September 25, 2008
    Applicants: Areva NP, Commissariat A L'Energie Atomique
    Inventors: Gregory Maveyraud, Jean-Marie Vallerot, Xavier Bourrat, Olivier Dugne