Patents by Inventor Olivier Citti

Olivier Citti 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 and doped product based on zircon + NbOor TaO
    Patent number: 8236719
    Abstract: Sintered product produced from a starting charge containing 75 to 99% zircon, and having the following average chemical composition by weight, the percentages by weight being based on the oxides: 60%<ZrO2+HfO2<75%; 27%<SiO2<34%; O<TiO2; O<Y2O3<3.5%; 0.1%<Nb2O5+Ta2O5<=5%; and other oxides: <1.5%; for a total of 100%, The sintered product may be used in a glass furnace.
    Type: Grant
    Filed: October 15, 2007
    Date of Patent: August 7, 2012
    Assignee: Saint-Gobain Centre de Recherches et d'Etudes European
    Inventors: Olivier Citti, Julien Fourcade
  • ZIRCON COMPONENTS
    Publication number: 20120141701
    Abstract: A zircon body for use in glass manufacturing is provided containing zircon grains and an intergranular phase present between the zircon grains. The intergranular phase may contain silicon oxide. The body may be exposed to a halide to at least partially remove at least a majority of the silicon oxide contained in the intergranular phase from the outer portion or to at least partially remove the intergranular phase along an outer portion of the component.
    Type: Application
    Filed: December 2, 2011
    Publication date: June 7, 2012
    Applicant: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: Julien P. Fourcade, Olivier Citti
  • Tin oxide-based electrode composition
    Patent number: 8147724
    Abstract: A tin oxide-based electrode formed from a composition including a majority component comprising tin-oxide (SnO2), and additives comprising CuO, ZnO, and a resistivity modifying species. The total amount of CuO and ZnO is not greater than about 0.3 wt %, and the ZnO is present in an amount within a range between about 0.1 wt % and about 0.19 wt %.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: April 3, 2012
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Julien P. Fourcade, Olivier Citti
  • SINTERED PRODUCT BASED ON CHROMIUM OXIDE
    Publication number: 20120067086
    Abstract: A sintered product presenting a mean chemical composition such that, in percentages by weight based on the oxides: Cr2O3: 72.0%-98.9% 2%<Al2O3?20% 0.1%?TiO2?6.0% ZrO2<4.0% SiO2?0.9%.
    Type: Application
    Filed: April 15, 2010
    Publication date: March 22, 2012
    Applicant: Saint-Gobain Centre De Recherches Et D'Etudes Europeen
    Inventors: Olivier Citti, Julien Fourcade
  • Sintered refactory material based on silicon carbide with a silicon nitride binder
    Patent number: 8097547
    Abstract: A sintered material based on silicon carbide (SiC) reactively sintered between 1,100° C. and 1,700° C. to form a silicon nitride binder (Si3N4), intended in particular for fabricating an aluminum electrolysis cell, including 0.05% to 1.5% of boron, the Si3N4/SiC weight ratio being in the range 0.05 to 0.45.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: January 17, 2012
    Assignee: Saint-Gobain Centre de Recherches et d'Etudes Europeen
    Inventors: Eric Jorge, Olivier Marguin, Lionel Moitrier, Olivier Citti
  • SINTERED PRODUCT PRODUCED FROM A ZIRCON-BASED CHARGE
    Publication number: 20110107796
    Abstract: The present invention relates to a sintered product elaborated from a starting charge containing 75-99% of zircon, in mass percentage based on the oxides and having the following average weight chemical composition, in mass percentages based on the oxides 60%?ZrO2?72.8%, 27%?SiO2?36%, 0.1%?B2O3+GeO2+P2O5+Sb2O3+Nb2O5+Ta2O5+V2O5, 0.1%?ZnO+PbO+CdO, B2O3+GeO2+P2O5+Sb2O3+Nb2O5+Ta2O5+V2O5+ZnO+PbO+CdO?5% 0% ?Al2O3+TiO2+MgO+Fe2O3+NiO+MnO2+CoO+CuO?5%, other oxides: ?1.5%, for a total of 100%. Notably used in a glass furnace.
    Type: Application
    Filed: April 14, 2009
    Publication date: May 12, 2011
    Applicant: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventors: Olivier Citti, Julien Fourcade
  • Zirconium-base sintered product
    Patent number: 7910508
    Abstract: The inventive sintered product is produced from an initial feedstock having a zirconium content ranging from 75 to 99% and the following average chemical weight composition, in percentage by weight, based on oxides: 60%=ZrO2+HfO2=75%, 27%=SiO2=34%, 0.2=TiO2=1.5 %, 0.3<Y2O3=3.5 %, other oxides: =1%, to give a total of 100%. Said product can be used for glassworks.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: March 22, 2011
    Assignee: Saint-Gobain Centre de Recherches et d'Etudes European
    Inventors: Michel Gaubil, Yves Boussant-Roux, Charles McGarry, Isabelle Cabodi, Olivier Citti
  • SINTERED REFRACTORY MATERIAL BASED ON SILICON CARBIDE WITH A SILICON NITRIDE BINDER
    Publication number: 20110024956
    Abstract: A sintered material based on silicon carbide (SiC) reactively sintered between 1,100° C. and 1,700° C. to form a silicon nitride binder (Si3N4), intended in particular for fabricating an aluminum electrolysis cell, including 0.05% to 1.5% of boron, the Si3N4/SiC weight ratio being in the range 0.05 to 0.45. Application, in particular, to an electrolysis cell.
    Type: Application
    Filed: February 5, 2009
    Publication date: February 3, 2011
    Applicant: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventors: Eric Jorge, Olivier Marguin, Lionel Moitrier, Olivier Citti
  • SINTERED PRODUCT BASED ON ALUMINA AND CHROMIUM OXIDE
    Publication number: 20100179051
    Abstract: The invention provides a sintered product presenting an apparent density greater than 4.00 g/cm3 and having the following mean chemical composition, as a percentage by weight based on the oxides and for a total of 100%: Al2O2: complement to 100% 16%?Cr2O3?29.5% TiO2 in a quantity such that the Cr2O3/TiO2 weight ratio is greater than 16 and less than 35, other species: ?1% Application as an electrode bushing block.
    Type: Application
    Filed: July 10, 2008
    Publication date: July 15, 2010
    Applicant: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventors: Olivier Citti, Julien Fourcade
  • TIN OXIDE-BASED ELECTRODE COMPOSITION
    Publication number: 20100155674
    Abstract: A tin oxide-based electrode formed from a composition including a majority component comprising tin-oxide (SnO2), and additives comprising CuO, ZnO, and a resistivity modifying species. The total amount of CuO and ZnO is not greater than about 0.3 wt %, and the ZnO is present in an amount within a range between about 0.1 wt % and about 0.19 wt %.
    Type: Application
    Filed: December 18, 2009
    Publication date: June 24, 2010
    Applicant: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: Julien P. Fourcade, Olivier Citti
  • BUSHING BLOCK
    Publication number: 20100154481
    Abstract: A refractory article including a bushing block having a body comprising an opening extending through the body, wherein the bushing block is formed from a composition comprising a primary component comprising tin oxide. The composition for forming the bushing block body can further include at least one additive selected from the group of additives consisting of a corrosion inhibitor, a sintering aid, and a resistivity modifying species, or a combination thereof.
    Type: Application
    Filed: December 18, 2009
    Publication date: June 24, 2010
    Applicant: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: Julien P. Fourcade, Olivier Citti
  • SINTERED AND DOPED PRODUCT BASED ON ZIRCON + Nb2O5 or Ta2O5
    Publication number: 20100089098
    Abstract: Sintered product produced from a starting charge containing 75 to 99% zircon, and having the following average chemical composition by weight, the percentages by weight being based on the oxides: 60%<ZrO2+HfO2<75%; 27%<SiO2<34%; O<TiO2; O<Y2O3<3.5%; 0.1%<Nb2O5+Ta2O5<=5%; and other oxides: <1.5%; for a total of 100%, The sintered product may be used in a glass furnace.
    Type: Application
    Filed: October 15, 2007
    Publication date: April 15, 2010
    Applicant: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventors: Olivier Citti, Julien Fourcade
  • Tin oxide material with improved electrical properties for glass melting
    Patent number: 7685843
    Abstract: A tin oxide-based electrode formed from a composition comprising a major component SnO2 is disclosed. The composition includes additives including aCuO, bZnO, and cSb2O3, wherein a, b, and c represent weight percentages of respective components, and 0.2?(a+b)/c<1.0.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: March 30, 2010
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Olivier Citti, James A. A. Williams, Charles N. McGarry
  • DOPED SINTERED PRODUCT BASED ON ZIRCON AND ZIRCONIA
    Publication number: 20100012484
    Abstract: A sintered product made from a starting batch containing 5 to 50% zircon and having the following average chemical composition, in weight percentages on the basis of the oxides and for a total of 100%: silica and zirconia, the zirconia content (ZrO2) being at least 64%, at least 0.2% of a dopant selected from V2O5, Nb2O5, Ta2O5, and mixtures thereof, optionally, a stabilizer selected from Y2O3, MgO, CaO, CeO2, and mixtures thereof, at a content of 6% or less, “other oxides” at a content of 6.7% or less.
    Type: Application
    Filed: December 20, 2007
    Publication date: January 21, 2010
    Applicant: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES
    Inventors: Olivier Citti, Julien Fourcade, Michel Gaubil, Charles Nicholas Mc Garry, Michael J. Seaborne
  • Zirconium-Base Sintered Product
    Publication number: 20090215609
    Abstract: The inventive sintered product is produced from an initial feedstock having a zirconium content ranging from 75 to 99% and the following average chemical weight composition, in percentage by weight, based on oxides: 60 %=ZrO2+HfO2=75%, 27%=SiO2=34%, 0.2=TiO2=1.5 %, 0.3<Y2O3=3.5 %, other oxides:=1%, to give a total of 100%. Said product can be used for glassworks.
    Type: Application
    Filed: March 31, 2006
    Publication date: August 27, 2009
    Applicant: SAINT GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventors: Michel Gaubil, Yves Boussant-Roux, Charles McGarry, Isabelle Cabodi, Olivier Citti
  • A SINTERED REFACTORY MATERIAL BASED ON SILICON CARBIDE WITH A SILICON NITRIDE BINDER
    Publication number: 20080234122
    Abstract: A sintered material based on silicon carbide (SiC) reactively sintered between 1,100° C. and 1,700° C. to form a silicon nitride binder (Si3N4), intended in particular for fabricating an aluminum electrolysis cell, including 0.05% to 1.5% of boron, the Si3N4/SiC weight ratio being in the range 0.05 to 0.45. Application, in particular, to an electrolysis cell.
    Type: Application
    Filed: February 8, 2008
    Publication date: September 25, 2008
    Applicant: SAINT-GOBAIN CENTRE RECHERCHES ET D'ETUDES EUROPEEN
    Inventors: Eric JORGE, Olivier MARGUIN, Lionel MOITRIER, Olivier CITTI
  • Refractory product for a checker work element of a glass furnace regenerator
    Patent number: 7335617
    Abstract: The invention relates to a melted and cast refractory product which is intended, for example, for a checker work element of a glass furnace regenerator, having the following average chemical weight composition, expressed in weight percent based on oxide content: 0.4%<MgO<2.5%; 0.2%<SIO2<2%; CaO<0.4%; impurities<0.5% AL2O3: complement.
    Type: Grant
    Filed: April 15, 2004
    Date of Patent: February 26, 2008
    Assignee: Saint-Gobain Centre de Recherches et d'Etudes Europeen
    Inventors: Yves Boussant-Roux, Michel Gaubil, Olivier Citti
  • Tin oxide-based electrodes having improved corrosion resistance
    Publication number: 20060261317
    Abstract: In one embodiment a tin oxide based electrode is disclosed. The tin oxide-based electrode includes a base material of tin oxide, a resistivity modifier, a sintering aid, and a corrosion inhibitor. The corrosion inhibitor forms a solid solution with the base material and has a melting point not less than about 1700° C. and a partial pressure of not greater than about 1.0E-7 atmospheres at 1500° C. The corrosion inhibitor further includes 0-4.0 wt % ZrO2 based on the total weight of the composition.
    Type: Application
    Filed: May 19, 2005
    Publication date: November 23, 2006
    Applicant: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: Olivier Citti, Charles McGarry, Yves Boussant Roux
  • Refractory product for a checker work element of a glass furnace regenerator
    Publication number: 20060172879
    Abstract: The invention relates to a melted and cast refractory product which is intended, for example, for a checker work element of a glass furnace regenerator, having the following average chemical weight composition, expressed in weight percent based on oxide content: 0.4%<MgO<2.5%; 0.2%<SIO2<2%; CaO<0.4%; impurities<0.5% AL2O3: complement.
    Type: Application
    Filed: April 15, 2004
    Publication date: August 3, 2006
    Inventors: Yves Boussant-Roux, Michael Gaubil, Olivier Citti
  • Tin oxide material with improved electrical properties for glass melting
    Publication number: 20060016223
    Abstract: A tin oxide-based electrode formed from a composition comprising a major component SnO2 is disclosed. The composition includes additives including aCuO, bZnO, and cSb2O3, wherein a, b, and c represent weight percentages of respective components, and 0.2?(a+b)/c<1.0.
    Type: Application
    Filed: July 23, 2004
    Publication date: January 26, 2006
    Inventors: Olivier Citti, James Williams, Charles McGarry