Patents by Inventor Franceline Villermaux

Franceline Villermaux 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).

  • Publication number: 20190127622
    Abstract: A sintered material exhibiting the following chemical composition, as percentages by weight: iron oxide(s), expressed in the Fe2O3 form, ?85%, CaO: 0.1%-6%, SiO2: 0.1%-6%, 0.05% ?TiO2, 0?Al2O3, TiO2+Al2O3?3%, and constituents other than iron oxides, CaO, SiO2, TiO2 and Al2O3: ?5%. The CaO/SiO2 ratio by weight is between 0.2 and 7. The TiO2/CaO ratio by weight is between 0.2 and 1.5.
    Type: Application
    Filed: April 19, 2017
    Publication date: May 2, 2019
    Inventors: Christian HIS, Franceline VILLERMAUX
  • Patent number: 9133966
    Abstract: A device having a first part shrink-fitted with a first shrink ring, the first shrink ring being shrink-fitted with a second shrink ring exhibiting a lower thermal expansion coefficient than a thermal expansion coefficient of the first shrink ring.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: September 15, 2015
    Assignee: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventors: Christian His, Franceline Villermaux, Guillaume Belly
  • Patent number: 9023288
    Abstract: A device including a first part made of ceramic material shrink fitted with a first shrink ring, in which an edge of an axial end of a cylindrical portion of the first part to which the first shrink ring is fitted and an edge of an axial end of the first shrink ring belong to one and the same transverse plane.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: May 5, 2015
    Assignee: Saint-Gobain Centre de Recheches et d'Etudes European
    Inventors: Christian His, Franceline Villermaux, Guillaume Belly
  • Patent number: 8992852
    Abstract: A device including a first part having a substrate made of a material based on a silicon compound, a coating made of a coating material having a ceramic oxide, a transition layer having silica extending between the substrate and the coating, the transition layer exhibiting a thickness of less than 10 ?m, and a first shrink ring and/or a layer made of a compliant material having an alloy with at least two materials selected from silver, gold and palladium, the coating defining at least a portion of the interface between the first part, and the first shrink ring and/or the layer made of a compliant material.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: March 31, 2015
    Assignee: Saint-Gobain Centre de Recherches et d'Etudes Europeen
    Inventors: Christian His, Franceline Villermaux, Guillaume Belly
  • Publication number: 20140030163
    Abstract: Sintered refractory product including, in percentages by weight on the basis of the oxides, —more than 10% of chromium oxide Cr2O3, —more than 2% of hafnium oxide HfO2, —more than 1% of zirconium oxide ZrO2, the total content of chromium, hafnium and zirconium oxides Cr2O3+HfO2+ZrO2 being greater than 70%.
    Type: Application
    Filed: April 13, 2012
    Publication date: January 30, 2014
    Applicant: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventors: Christian His, Franceline Villermaux, Thibault Champion, Nicolas Raffin, Laurie San Miguel
  • Patent number: 8622439
    Abstract: A device including a first member joined to a second member, the joining being carried out via a compliant material having an alloy with at least two materials selected from silver, gold, and palladium, the second member being a shrink ring of the first member.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: January 7, 2014
    Assignee: Saint-Gobain Centre de Recherches et d'Etudes Europeen
    Inventors: Christian His, Franceline Villermaux
  • Patent number: 8445395
    Abstract: A method of manufacturing a porous ceramic part, comprising the following steps in succession: a) preparing a mixture M containing a ceramic powder in suspension, at least one gelling agent and at least one foaming agent, at a mixing temperature which is higher than the gelling temperature of the gelling agent; b) shearing the mixture M at a foaming temperature which is higher than the gelling temperature, to obtain a foam; c) gelling the foam by cooling the mixture M to a temperature below the gelling temperature of the gelling agent; and d) drying the gelled foam to obtain a perform. According to the invention, a stabilizing agent is added to the mixture M, which agent has an instantaneous viscosity, in Pa·s, that increases by a factor of at least ten when a shear rate of the stabilizing agent is reduced from 100 s?1 to 0.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: May 21, 2013
    Assignee: Saint-Gobain Centre de Recherches et d'Etudes Europeen
    Inventors: Caroline Tardivat, Emmanuel Mercier, Christian His, Franceline Villermaux
  • Patent number: 8376318
    Abstract: A powder including: (a) more than 92% of zircon particles; (b) 1% to 2% of silica particles having a size less than 50 microns; (c) 0.3% to 5% of particles comprising one, two, or three oxides selected from CaO, MgO, and Y2O3; (d) less than 1% of particles comprising other oxides; the powder also being such that it includes: more than 5% of zircon aggregate particles having a size greater than 1 mm; and 8% to 20% of zircon matrix particles having a size less than 15 ?m and including, for more than 95% of the weight thereof, a monoclinic phase.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: February 19, 2013
    Assignee: Saint-Gobain Centre de Recherches et d'Etudes Europeen
    Inventors: Franceline Villermaux, Thibault Champion, Christian His
  • Patent number: 8129300
    Abstract: The invention relates to a porous, fired ceramic foam having a total porosity of between 50 and 92% and an intergranular porosity of at least 5%. In particular, the invention relates to a recrystallised silicon carbide foam.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: March 6, 2012
    Assignee: Saint Gobain Centre de Recherches et d'Etudes Europeen
    Inventors: Christian His, Samuel Prigent, Matteo Scalabrino, Franceline Villermaux
  • Publication number: 20120018007
    Abstract: A powder including: (a) more than 92% of zircon particles, (b) 1% to 2% of silica particles having a size less than 50 microns; (c) 0.3% to 5% of particles comprising one, two, or three oxides selected from CaO, MgO, and Y2O3; (d) less than 1% of particles comprising other oxides; the powder also being such that it includes: more than 5% of zircon aggregate particles having a size greater than 1 mm; and 8% to 20% of zircon matrix particles having a size less than 15 ?m and including, for more than 95% of the weight thereof, a monoclinic phase.
    Type: Application
    Filed: March 10, 2010
    Publication date: January 26, 2012
    Applicant: SAINT-GOBAIN CENTRE DE RECHERCHES ET' D'ETUDES EUROPEEN
    Inventors: Franceline Villermaux, Thibault Champion, Christian His
  • Publication number: 20120001422
    Abstract: A device including a first part made of ceramic material shrink fitted with a first shrink ring, in which an edge of an axial end of a cylindrical portion of the first part to which the first shrink ring is fitted and an edge of an axial end of the first shrink ring belong to one and the same transverse plane.
    Type: Application
    Filed: February 24, 2010
    Publication date: January 5, 2012
    Applicant: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventors: Christian His, Franceline Villermaux, Guillaume Belly
  • Publication number: 20120003128
    Abstract: A device including a first part having a substrate made of a material based on a silicon compound, a coating made of a coating material having a ceramic oxide, a transition layer having silica extending between the substrate and the coating, the transition layer exhibiting a thickness of less than 10 ?m, and a first shrink ring and/or a layer made of a compliant material having an alloy with at least two materials selected from silver, gold and palladium, the coating defining at least a portion of the interface between the first part, and the first shrink ring and/or the layer made of a compliant material.
    Type: Application
    Filed: February 24, 2010
    Publication date: January 5, 2012
    Applicant: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventors: Christian His, Franceline Villermaux, Guillaume Belly
  • Publication number: 20120001417
    Abstract: A device including a first member joined to a second member, the joining being carried out via a compliant material having an alloy with at least two materials selected from silver, gold, and palladium, the second member being a shrink ring of the first member.
    Type: Application
    Filed: February 24, 2010
    Publication date: January 5, 2012
    Applicant: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventors: Christian His, Franceline Villermaux
  • Publication number: 20120001421
    Abstract: A device having a first part shrink-fitted with a first shrink ring, the first shrink ring being shrink-fitted with a second shrink ring exhibiting a lower thermal expansion coefficient than a thermal expansion coefficient of the first shrink ring.
    Type: Application
    Filed: February 24, 2010
    Publication date: January 5, 2012
    Applicant: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventors: Christian His, Franceline Villermaux, Guillaume Belly
  • Patent number: 8043694
    Abstract: Porous ceramic part comprising a porous ceramic foam having a total porosity of between 50 and 92% and an intergranular porosity of at least 5%, walls of at least some of the cells of the ceramic foam being at least partly covered with an impregnation material. The invention relates in particular to a recrystallized silicon carbide foam impregnated with silicon.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: October 25, 2011
    Assignee: Saint Gobain Centre de Recherches et d'Etudes Europeen
    Inventors: Christian Claude His, Franceline Villermaux, Nicolas Raffin, Michel Dussaulx
  • Publication number: 20090305017
    Abstract: Porous ceramic part comprising a porous ceramic foam having a total porosity of between 50 and 92% and an intergranular porosity of at least 5%, walls of at least some of the cells of the ceramic foam being at least partly covered with an impregnation material. The invention relates in particular to a recrystallized silicon carbide foam impregnated with silicon.
    Type: Application
    Filed: January 30, 2007
    Publication date: December 10, 2009
    Applicant: Saint-Gobain Centre De Recherches Et d'Etudes Europeen
    Inventors: Christian Claude His, Franceline Villermaux, Nicolas Raffin, Michel Dussaulx
  • Publication number: 20090069167
    Abstract: A method of manufacturing a porous ceramic part, comprising the following steps in succession: a) preparing a mixture M containing a ceramic powder in suspension, at least one gelling agent and at least one foaming agent, at a mixing temperature which is higher than the gelling temperature of the gelling agent; b) shearing the mixture M at a foaming temperature which is higher than the gelling temperature, to obtain a foam; c) gelling the foam by cooling the mixture M to a temperature below the gelling temperature of the gelling agent; and d) drying the gelled foam to obtain a perform. According to the invention, a stabilizing agent is added to the mixture M, which agent has an instantaneous viscosity, in Pa·s, that increases by a factor of at least ten when a shear rate of the stabilizing agent is reduced from 100 s?1 to 0.
    Type: Application
    Filed: July 26, 2005
    Publication date: March 12, 2009
    Inventors: Caroline Tardivat, Emmanuel Mercier, Christian His, Franceline Villermaux
  • Publication number: 20080312064
    Abstract: The invention relates to a porous, fired ceramic foam having a total porosity of between 50 and 92% and an intergranular porosity of at least 5%. In particular, the invention relates to a recrystallised silicon carbide foam.
    Type: Application
    Filed: July 26, 2005
    Publication date: December 18, 2008
    Inventors: Christian His, Samuel Prigent, Matteo Scalabrino, Franceline Villermaux
  • Publication number: 20060211566
    Abstract: A gasifier internal refractory coating has at least one region of a sintered material containing at least 45% by weight of chromium oxide (Cr2O3) and at least 1% by weight of zirconium oxide, at least 20% by weight of the zirconium oxide (ZrO2) being stabilized in the cubic and/or quadratic form.
    Type: Application
    Filed: June 27, 2005
    Publication date: September 21, 2006
    Inventors: Thibault Champion, Christian His, Franceline Villermaux
  • Publication number: 20020031675
    Abstract: A biomedical component comprising sintered yttria tetragonal zirconia ceramic (YTZP), the YTZP comprising at least 90 mol % ZrO2, the ZrO2 being partially stabilized with at least 2.1 mol % yttria, wherein the YTZP further comprises between 0.05 wt % and 1 wt % alumina, wherein the YTZP has a density of at least 99% of theoretical density and has a grain size, as measured by the linear intercept method, of no more than 1 micron, and wherein the yttria is homogeneously distributed within the zirconia.
    Type: Application
    Filed: April 24, 2001
    Publication date: March 14, 2002
    Inventors: Bernard Cales, Laurence Blaise, Franceline Villermaux