Patents by Inventor Eric Hanus

Eric Hanus 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).

  • Sintered bead based on zirconia and on cerium oxide
    Patent number: 8853112
    Abstract: A sintered bead presenting the following chemical analysis, in percentages by weight and for a total of 100%: ZrO2+HfO2: 78%-85%; CeO2: ?15%; Al2O3: >0.1%; additive: >0.1%; impurities: <1%; the additive being selected from MnO, MnO2, Fe2O3, CuO, TiO2, Y2O3, Sb2O3, ZnO, and mixtures thereof. Application to microgrinding and to microdispersion.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: October 7, 2014
    Assignee: Saint-Gobain Centre de Recherches et d'Etudes Europeen
    Inventors: Emmanuel Nonnet, Rimma Khodakovskaya, Moshe Link, Marcel Yancu, Andrei Schon, Eric Hanus
  • Method of removing the polymer encapsulating a nuclear fuel pellet
    Patent number: 8088312
    Abstract: Method for removing the epoxy and/or phenolic polymer encapsulating a nuclear fuel pellet comprising uranium dioxide UO2, the method comprising the following successive steps: a) the polymer is pyrolysed in a reducing atmosphere; and b) the carbon residues obtained after the pyrolysis step (a) are selectively oxidized, the oxidation being carried out at temperature above 1000° C. in an atmosphere comprising carbon dioxide CO2. Such a method makes it possible to remove the epoxy and/or phenolic polymer encapsulating the pellet while avoiding or limiting the risk of radiological contamination by the formation of U3O8.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: January 3, 2012
    Assignee: Commissariat a l'Energie Atomique et aux Energies Alternatives
    Inventors: Eric Hanus, Olivier Fiquet, Nicolas Tarisien
  • METHOD OF REMOVING THE POLYMER ENCAPSULATING A NUCLEAR FUEL PELLET
    Publication number: 20110127473
    Abstract: Method for removing the epoxy and/or phenolic polymer encapsulating a nuclear fuel pellet comprising uranium dioxide UO2, the method comprising the following successive steps: a) the polymer is pyrolysed in a reducing atmosphere; and b) the carbon residues obtained after the pyrolysis step (a) are selectively oxidized, the oxidation being carried out at temperature above 1000° C. in an atmosphere comprising carbon dioxide CO2. Such a method makes it possible to remove the epoxy and/or phenolic polymer encapsulating the pellet while avoiding or limiting the risk of radiological contamination by the formation of U3O8.
    Type: Application
    Filed: July 23, 2009
    Publication date: June 2, 2011
    Inventors: Eric Hanus, Oliver Fiquet, Nicolas Tarisien
  • FUSED CERAMIC PRODUCT, METHOD OF FABRICATION AND USES
    Publication number: 20110039684
    Abstract: A molten product in the form of a particle having a sphericity higher than or equal to 0.6, having the following chemical composition, in weight percent based on the oxides and for a total of 100%: (ZrO2+HfO2): complement to 100%, 6%?CeO2?31%, 0.8%?Y2O3?8.5%, 0%?Al2O3?30%, 0%?SiO2?17%, 0?TiO2?8.5%, 0?MgO?6%, and other oxides?1%, provided that, by denoting by “C” the weight ratio CeO2/(ZrO2+HfO2) and by “Y” the weight ratio Y2O3/(ZrO2+HfO2), 0?C?0.6 and Y?0.02 and Min(63.095*Y2?11.214*Y+0.4962; 0.25)?C ??(I) and C?250*Y2?49.1*Y+2.6 ??(II).
    Type: Application
    Filed: December 22, 2008
    Publication date: February 17, 2011
    Inventors: Emmanuel Nonnet, Yves Boussant-Roux, Eric Hanus
  • Sintered Bead Based on Zirconia and on Cerium Oxide
    Publication number: 20090120010
    Abstract: A sintered bead presenting the following chemical analysis, in percentages by weight and for a total of 100%: ZrO2+HfO2: 78%-85%; CeO2: ?15%; Al2O3: >0.1%; additive: >0.1%; impurities: <1%; the additive being selected from MnO, MnO2, Fe2O3, CuO, TiO2, Y2O3, Sb2O3, ZnO, and mixtures thereof. Application to microgrinding and to microdispersion.
    Type: Application
    Filed: February 27, 2006
    Publication date: May 14, 2009
    Applicant: SAINT-GOBIN CENTRE DE RECHERCHE ET D'ETUDES EUROPEEN
    Inventors: Emmanuel Nonnet, Rimma Khodakovskaya, Moshe Link, Marcel Yancu, Andrei Schon, Eric Hanus