Patents by Inventor Jean-Marie Fageon

Jean-Marie Fageon 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).

  • Treatment of a heater tube intended for a pressurizer of the primary cooling system of a nuclear reactor
    Patent number: 9169527
    Abstract: A treatment of a heater tube intended to be used in a pressurizer of the primary cooling system of a nuclear reactor. In particular, the heater tube comprises a heater housed in a substantially cylindrical sheath. The material of which this sheath is made is a work-hardened austenitic stainless steel. In particular, the external surface of the sheath is liable to undergo a stress corrosion during use of the heatertube. The method includes a heat treatment step, preferably using induction heating, in which the external surface of the sheath is heat-treated so as to recrystallize the material of the sheath at least on the surface thereof.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: October 27, 2015
    Assignee: Electricite de France
    Inventors: Jacques Champredonde, Jean-Marie Fageon, Yves Neau
  • TREATMENT OF A HEATER TUBE INTENDED FOR A PRESSURIZER OF THE PRIMARY COOLING SYSTEM OF A NUCLEAR REACTOR
    Publication number: 20130044852
    Abstract: A treatment of a heater tube intended to be used in a pressurizer of the primary cooling system of a nuclear reactor. In particular, the heater tube comprises a heater housed in a substantially cylindrical sheath. The material of which this sheath is made is a work-hardened austenitic stainless steel. In particular, the external surface of the sheath is liable to undergo a stress corrosion during use of the heatertube. The method includes a heat treatment step, preferably using induction heating, in which the external surface of the sheath is heat-treated so as to recrystallize the material of the sheath at least on the surface thereof.
    Type: Application
    Filed: April 6, 2011
    Publication date: February 21, 2013
    Applicant: ELECTRICITE DE FRANCE
    Inventors: Jacques Champredonde, Jean-Marie Fageon, Yves Neau