Patents by Inventor Christian His

Christian His 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: 20210130215
    Abstract: An insulated tuckstone that includes a basic tuckstone and an insulating layer exhibiting a thermal conductivity lower than 2.0 Wm 1.K?1 between 20° C. and 500° C., exhibiting enough rigidity to be self-supporting and covering an insulated surface of the basic tuckstone. The insulated surface is included in the lower surface of the basic tuckstone, extending into the lower transition surface and representing more than 20% of the lower transition surface. The insulating layer has a chemical composition, as a percentage by mass on the basis of the oxides, such that Al2O3+SiO2+ZrO2+CaO+Na2O+MgO+K2O+TiO2+Fe2O3+HfO2+P2O5+Y2O3>80%.
    Type: Application
    Filed: April 10, 2019
    Publication date: May 6, 2021
    Inventors: Isabelle CABODI, Pierrick VESPA, Franceline Marguerite Louise VILLERMAUX, Christian HIS
  • Publication number: 20190367416
    Abstract: Sintered product having a relative density of greater than 90%, with, to more than 80% of the volume thereof, a stack of flat ceramic platelets, the assembly of the platelets having a mean thickness of less than 3 ?m, having a width of greater than 50 mm, and including more than 20% of alumina, as a percentage on the basis of the weight of the product. The width of the product is the largest dimension measured in the plane in which the length of the product is measured, along a direction perpendicular to the direction of the length. The length of the product is the largest dimension thereof in a plane parallel to the general plane in which the platelets extend.
    Type: Application
    Filed: January 30, 2018
    Publication date: December 5, 2019
    Inventors: Nassira BENAMEUR, Christian HIS, Jérôme LELOUP
  • 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: 10167233
    Abstract: A sintered refractory product having the form of a block and consisting of a granulate formed by all the grains having a size larger than 100 ?m, referred to as “coarse grains”, and a matrix binding the coarse grains and consisting of the grains having a size smaller than or equal to 100 ?m, the granulate representing between 45% and 90% by mass of the product, the product having a composition such that, in a mass percentage based on the oxides: Al2O3>80%, SiO2<15%, Na2O<0.15%, Fe2O3<0.05%, CaO<0.1%, the other oxides forming the remainder up to 100%, and the Na2O content in the matrix being greater than 0.010%, in a mass percentage based on the mass of the product.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: January 1, 2019
    Assignee: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventors: Laurie San-Miguel, Fabiano Rodrigues, Christian His, Thibault Champion
  • Publication number: 20180215667
    Abstract: Sintered product having a chemical analysis such that, in mass percentages: SiO2 content is greater than 0.2% and less than 2%, and CaO content is greater than 0.1% and less than 1.5%, and MgO content is less than 0.3%, and alumina and other elements being the complement at 100%, the content of other elements being less than 1.5%, having a relative density greater than 90%, comprising, for more than 90% of its volume, a stack of ceramic platelets (10) laid flat, all of said platelets having an average thickness less than 3 ?m, more than 95% by number of said platelets each containing more than 95% by mass of alumina, having a width (l) greater than 81 mm.
    Type: Application
    Filed: January 30, 2018
    Publication date: August 2, 2018
    Inventors: Nassira Benameur, Christian His, Jérôme Leloup
  • Patent number: 9908816
    Abstract: A powder is disclosed having a coarse fraction representing more than 60% and less than 85% of the powder, as a weight percentage on the basis of the oxides, and that is constituted of particles having a size greater than or equal to 50 ?m, referred to as “coarse particles”, the powder comprising at least 5% of coated grains having a size greater than or equal to 50 ?m, as a weight percentage on the basis of the oxides of the powder, and a fine fraction, forming the balance to 100% as a weight percentage on the basis of the oxides, constituted of particles having a size of less than 50 ?m, referred to as “matrix particles”. The powder can be applied in combustion chambers in which the temperature may reach 1400° C.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: March 6, 2018
    Assignee: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventors: Thibault Champion, Christian His
  • Publication number: 20160185666
    Abstract: A sintered refractory product having the form of a block and consisting—of a granulate formed by all the grains having a size larger than 100 ?m, referred to as “coarse grains”, and—a matrix binding said coarse grains and consisting of the grains having a size smaller than or equal to 100 ?m, the granulate representing between 45% and 90% by mass of the product, said product having a composition such that, in a mass percentage based on the oxides: —Al2O3>80%, —SiO2<15%, —Na2O<0.15% —Fe2O3<0.05%, —CaO<0.1%,—the other oxides forming the remainder up to 100%, the Na2O content in the matrix being greater than 0.010%, in a mass percentage based on the mass of the product.
    Type: Application
    Filed: July 18, 2014
    Publication date: June 30, 2016
    Applicant: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventors: Laurie SAN-MIGUEL, Fabiano RODRIGUES, Christian HIS, Thibault CHAMPION
  • Publication number: 20150315082
    Abstract: A powder is disclosed having a coarse fraction representing more than 60% and less than 85% of the powder, as a weight percentage on the basis of the oxides, and that is constituted of particles having a size greater than or equal to 50 ?m, referred to as “coarse particles”, the powder comprising at least 5% of coated grains having a size greater than or equal to 50 ?m, as a weight percentage on the basis of the oxides of the powder, and a fine fraction, forming the balance to 100% as a weight percentage on the basis of the oxides, constituted of particles having a size of less than 50 ?m, referred to as “matrix particles”. The powder can be applied in combustion chambers in which the temperature may reach 1400° C.
    Type: Application
    Filed: July 13, 2015
    Publication date: November 5, 2015
    Inventors: Thibault CHAMPION, Christian HIS
  • 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
  • Publication number: 20130090230
    Abstract: A powder is disclosed having a coarse fraction representing more than 60% and less than 85% of the powder, as a weight percentage on the basis of the oxides, and that is constituted of particles having a size greater than or equal to 50 ?m, referred to as “coarse particles”, the powder comprising at least 5% of coated grains having a size greater than or equal to 50 ?m, as a weight percentage on the basis of the oxides of the powder, and a fine fraction, forming the balance to 100% as a weight percentage on the basis of the oxides, constituted of particles having a size of less than 50 ?m, referred to as “matrix particles”. The powder can be applied in combustion chambers in which the temperature may reach 1400° C.
    Type: Application
    Filed: April 27, 2011
    Publication date: April 11, 2013
    Applicant: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventors: Thibault Champion, Christian His
  • 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: 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