Patents by Inventor Jérôme Pigelet

Jérôme Pigelet 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 measuring the thickness of an oxide layer on the pencil cladding in a fuel assembly
    Patent number: 6876195
    Abstract: A process for measuring the thickness of a layer of oxide on a rod cladding in a fuel assembly comprising a bundle of rods parallel to each other and held in a framework comprising spacer grids for transversely holding rods distributed in an axial direction of the bundle.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: April 5, 2005
    Assignee: Framatome ANP
    Inventors: Jérôme Pigelet, Michel Pain
  • Method and device for measuring the thickness of an oxide layer on the pencil cladding in a fuel assembly
    Publication number: 20040051523
    Abstract: A process for measuring the thickness of a layer of oxide on a rod cladding in a fuel assembly comprising a bundle of rods parallel to each other and held in a framework comprising spacer grids for transversely holding rods distributed in an axial direction of the bundle
    Type: Application
    Filed: October 23, 2003
    Publication date: March 18, 2004
    Inventors: Jerome Pigelet, Michel Pain
  • Method and apparatus for inspecting the rods of a nuclear reactor control cluster
    Patent number: 5835547
    Abstract: The apparatus for inspecting the rods of a cluster insertable in the core of a nuclear reactor comprises a body provided with sliding guide means for rods in m different orientations of the cluster, m being a submultiple of the number n of rods in the cluster, and a measurement jig carrying n/m heads (16) for eddy current examination and n/m probes (18) for ultrasound scanning placed on different guide paths. Each ultrasound probe (18) is constituted by an annular support surrounding a rod path and carrying a ring of individual transducers. The transducers are connected to a circuit for sequentially exciting the transducers in successive groups, causing the tube to be scanned circumferentially, and for electronic focusing towards the surface of a tube travelling on the path.
    Type: Grant
    Filed: August 27, 1997
    Date of Patent: November 10, 1998
    Assignees: Framatome, Compagnie Generale des Matieres Nucleaires
    Inventors: Denis Bour, Jerome Pigelet