Patents by Inventor Lylvie Voisembert

Lylvie Voisembert 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 process for controlling the effectiveness of particle hammering of the inner surface of a steam generator tube
    Patent number: 4893490
    Abstract: The hammering is carried out by a device having a tubular outer housing (5) which is placed against a face of the tube plate around a flush end of the tube to be hammered. A tool comprising a nozzle for projecting particles is mounted for axial movement in the outer housing (5). The control device has at least one piezoelectric sensor (20) in contact with the wall of the outer housing (5) and apparatus for measuring (23, 24) the electrical signal generated in the sensor (20). The nozzle for projecting particles is introduced into the outer housing (5) at the height of the sensors (20) after each tube hammering operation. The electrical voltage of the signals produced by the sensors is measured.
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: January 16, 1990
    Assignee: Framatome
    Inventors: Gerald Isnardon, Paul Jacquier, Lylvie Voisembert