Patents Assigned to SEVA
  • Patent number: 10934608
    Abstract: A Ni—Cr—Fe-based casting alloy is provided for use in manufacturing a component for contacting molten glass, such as a centrifugal spinner for forming fibers of a molten glass by a rotary fiber forming process, for example. This Ni—Cr—Fe-based casting alloy is suitable for use in manufacturing a component for contacting molten glass, and contains, in terms of mass percent, 15-30% Cr, 15-30% Fe, 2.5-5.0% Co, 3.0-6.0% W, 0.0-2.0% Ti, 0.5-2.5% Nb, 0.5-2.0% Mo, and 0.5-1.2% C, the remainder including nickel and unavoidable impurities.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: March 2, 2021
    Assignee: SAINT-GOBAIN SEVA
    Inventors: Yuefeng Gu, Jingbo Yan, Yaxin Xu, Fei Sun
  • Publication number: 20200063239
    Abstract: A metal alloy is for use at very high temperature, in particular the metal alloy can be used in a process for the manufacture of mineral wool by fiberizing a molten mineral composition. The metal alloy contains the following elements, the proportions being shown as percentage by weight of the alloy: Cr 20 to 35% Fe 10 to 25% W 2 to 10% Nb 0.5 to 2.5% Ti 0 to 1% C 0.2 to 1.2% Co less than 5% Si less than 0.9% Mn less than 0.9% the remainder consisting of nickel and unavoidable impurities.
    Type: Application
    Filed: February 28, 2017
    Publication date: February 27, 2020
    Applicant: SAINT-GOBAIN SEVA
    Inventors: Yaxin XU, JingBo YAN, Fei SUN, Yuefeng GU
  • Patent number: 10213047
    Abstract: A coffee preparation machine can include at least one sealed pod containing unroasted green coffee beans, a roasting system that accepts the at least one sealed pod, a grinding system, and a brewing system, where the brewing system, the roasting system, and the grinding system can be housed within a single self-contained unit.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: February 26, 2019
    Assignee: Seva Coffee Corporation
    Inventor: Deepak Boggavarapu
  • Patent number: 9912818
    Abstract: A customer may be allowed to request a service and to very quickly be put in touch with a local service provider who can perform the requested service. The customer need not know the identity of the vendor beforehand, and the vendor may not know the identity of the customer before agreeing to discuss the service. Multiple local service providers may be contacted in parallel by a centralized server configured to connect the customer with the local service providers. The most qualified or most highly rated local service providers for the particular service may be identified and then contacted first. The customer may be put in touch with one or more vendors in a very short amount of time after submitting the request, e.g., within 90 seconds.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: March 6, 2018
    Assignee: Seva Search, Inc.
    Inventors: Manpreet Singh, Gurpreet Singh, Amandeep Singh Bakshi, Vighna Rajesh Karyampudi
  • Patent number: 9463995
    Abstract: The invention relates to an alloy having high temperature mechanical strength in an oxidizing medium and comprising a carbide-precipitation-strengthened matrix containing chromium. The invention is characterized in that the alloy comprises carbides of at least one metal (M) selected from among titanium, zirconium and hafnium, said carbides also optionally containing (M?) tantalum. The invention is suitable for articles that require high temperature mechanical strength, such as for hot glass processing or production.
    Type: Grant
    Filed: November 26, 2004
    Date of Patent: October 11, 2016
    Assignees: SAINT-GOBAIN ISOVER, SAINT-GOBAIN SEVA
    Inventors: Jean-Luc Bernard, Christophe Liebaut, Patrice Berthod, Sylvain Michon
  • Patent number: 8708367
    Abstract: A gas generator for a safety device for a motor vehicle, comprises at least two distinct chambers which communicate with each other through at least one opening or nozzle. A first chamber is isolated from the outside. A second chamber or “diffusion” chamber is able to receive gases generated by the combustion of a solid pyrotechnical charge placed in the first chamber, and to discharge them towards the outside. The solid charge is a mixture consisting of at least one oxidizing charge and a reducing charge, the oxygen balance of which is equilibrated. A heat generator is provided which generates sufficient heat for triggering and sustaining the combustion of the charge without any other interaction, notably of the chemical type, between the heat generator and the charge.
    Type: Grant
    Filed: February 9, 2009
    Date of Patent: April 29, 2014
    Assignee: Seva Technologies
    Inventors: Daniel Duvacquier, Xavier Lelievre, Yvonnig Patton, François Peremarty
  • Patent number: 8398791
    Abstract: Cobalt based alloys exhibiting high-temperature mechanical strength in an oxidizing medium are provided. The alloys are free of W and Hf and include the following elements in percentage by weight of the alloy: 23 to 34% Cr; 6 to 12% Ni; 6.0 to 10% Ta; 0.3 to 1.2% C; less than 3% Fe; less than 1% Si; less than 0.5% Mn; less than 0.1% Zr; and a balance of cobalt and impurities. Ta/C molar ratios of the alloys are at least 0.3.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: March 19, 2013
    Assignees: Saint-Gobain Isover, Saint-Gobain Seva
    Inventors: Patrice Berthod, Jean-Luc Bernard, Christophe Liebaut
  • Patent number: 8262964
    Abstract: An alloy, characterized in that it contains the following elements (the proportions being indicated in percentages by weight of the alloy): Cr: ?23 to 34% Ti: 0.2 to 5% Ta: 0.5 to 7% C: 0.2 to 1.2% Ni: less than 5% Fe: less than 3% Si: less than 1% Mn: less than 0.5%, the balance consisting of cobalt and inevitable impurities. An article for the manufacture of mineral wool, especially fiberizing spinner, made of such an alloy.
    Type: Grant
    Filed: November 27, 2008
    Date of Patent: September 11, 2012
    Assignees: Saint-Gobain Isover, Saint-Gobain Seva
    Inventors: Jean-Luc Bernard, Patrice Berthod, Ludovic Hericher, Christophe Liebaut, Sylvain Michon
  • Patent number: 7992896
    Abstract: A gas generator for a safety system includes an explosible charge formed at least by a primary pyrotechnic compound, in a first chamber initiated by at least one initiator provided with a reinforcing charge and a secondary compound, in a second chamber, the decomposition of which is entailed by products of combustion of the primary compound, an interaction of the products of combustion of the primary compound and those of the secondary compound through an oxidation-reduction reaction occurring in a slightly confined volume, the first chamber communicating with said second chamber through a central nozzle and said second chamber being provided, at a first zone close to said first chamber, with orifices that discharge the gases and contain, in a second zone, said secondary compound; and means forming an obstacle to the passage of the gases installed in said second chamber between said first and second zones, said obstacle-forming means allowing the gases to pass into a central part and forming an obstacle to th
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: August 9, 2011
    Assignee: Seva Technologies
    Inventors: Paul-Philippe Cord, Fabien Béteille, Sylvie Martinel, legal representative
  • Publication number: 20100244310
    Abstract: An alloy, characterized in that it contains the following elements (the proportions being indicated in percentages by weight of the alloy): Cr: ?23 to 34% Ti: 0.2 to 5% Ta: 0.5 to 7% C: 0.2 to 1.2% Ni: less than 5% Fe: less than 3% Si: less than 1% Mn: less than 0.5%, the balance consisting of cobalt and inevitable impurities. An article for the manufacture of mineral wool, especially fiberizing spinner, made of such an alloy.
    Type: Application
    Filed: November 27, 2008
    Publication date: September 30, 2010
    Applicants: Saint-Gobain Isover, Saint-Gobain Seva
    Inventors: Jean-Luc Bernard, Patrice Berthod, Ludovic Hericher, Christophe Liebaut, Sylvain Michon
  • Patent number: 7651126
    Abstract: A device for protecting goods and/or persons including a security element; and a gas generating system connected to the security element and including an explosive charge formed at least of: a primary pyrotechnic compound, in a first chamber, initiated by at least one initiator having a reinforcing charge and including at least one propellant having an optionally adjusted oxygen balance, and a secondary compound, in a secondary chamber, including an oxidant constituent capable of delivering only gas by decomposition and at least one reducing additive having a function of contributing nitrogen, the additive being present in a proportion by weight less than about 70% of the weight of the primary-secondary compound.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: January 26, 2010
    Assignees: Seva Technologies, Etienne Lacroix
    Inventors: Paul-Philippe Cord, Virginie Desbleumortiers, Fabrice Boyer, Michael Niehaus
  • Patent number: 7320187
    Abstract: The invention relates to a device for blowing a fluid onto at least one face of a thin element of the band type, comprising, within a containment (2) having a horizontal longitudinal axis (XX?) corresponding to the axis of travel of the band, at least one radial-flow fan (3) with a vertical axis (ZZ?), having at least one outlet connected to at least one pipe (51, 52) for feeding nozzles (43) directed towards the said face, characterized in that the nozzles (43) induce fluid jets in at least one plane perpendicular to the direction (XX?) of travel of the said band.
    Type: Grant
    Filed: February 13, 2002
    Date of Patent: January 22, 2008
    Assignee: Saint-Gobain Seva
    Inventors: Georges Bancon, Jean-Jacques Bris, Francois Bonnamour
  • Publication number: 20070292303
    Abstract: The process for manufacturing mineral wool by internal centrifuging is characterized in that the temperature of the mineral material in the fiberizing spinner dish is at least 1150° C. and in that the fiberizing spinner dish is made of a cobalt-based alloy comprising the following elements (in percentages by weight of the alloy): Cr 23 ?to 34% Fe less than 3% Ni ??6 to 12% Si less than 1% Ta ??3 to 10% Mn less than 0.5% C 0.2 to 1.2% Zr less than 0.1% W ??0 to 8%, the balance consisting of cobalt and inevitable impurities and the tantalum-to carbon molar ration being at least 0.3. Alloys particularly suitable for this process satisfy the above formula and do not contain tungsten. The alloys according to the invention can be used for other purposes in an oxidizing atmosphere at a temperature of at least 1100° C.
    Type: Application
    Filed: August 23, 2007
    Publication date: December 20, 2007
    Applicants: SAINT-GOBAIN ISOVER, SAINT-GOBAIN SEVA
    Inventors: Patrice Berthod, Jean-Luc Bernard, Christophe Liebaut
  • Publication number: 20070107811
    Abstract: The invention relates to an alloy having high temperature mechanical strength in an oxidising medium and comprising a carbide-precipitation-strengthened matrix containing chromium. The invention is characterised in that the alloy comprises carbides of at least one metal (M) selected from among titanium, zirconium and hafnium, said carbides also optionally containing (M?) tantalum. The invention is suitable for articles that require high temperature mechanical strength, such as for hot glass processing or production.
    Type: Application
    Filed: November 26, 2004
    Publication date: May 17, 2007
    Applicants: SAINT-GOBAIN ISOVER, SAINT-GOBAIN SEVA
    Inventors: Jean-Luc Bernard, Christophe Liebaut, Patrice Berthod, Michon Sylvain
  • Patent number: 7062864
    Abstract: The invention relates to a device for blowing a fluid onto at least one face of a thin element of the band type, comprising, within a containment (2) having a horizontal longitudinal axis (XX?) corresponding to the axis of travel of the band, at least one radial-flow fan (3) with a vertical axis (ZZ?), having at least one outlet connected to at least one pipe (51, 52) for feeding nozzles (43) directed towards the said face, characterized in that the nozzles (43) induce fluid jets in at least one plane perpendicular to the direction (XX?) of travel of the said band.
    Type: Grant
    Filed: February 13, 2002
    Date of Patent: June 20, 2006
    Assignee: Saint-Gobain Seva
    Inventors: Georges Bancon, Jean-Jacques Bris, Francois Bonnamour
  • Publication number: 20060071455
    Abstract: A device for protecting goods and/or persons including a security element; and a gas generating system connected to the security element and including an explosive charge formed at least of: a primary pyrotechnic compound, in a first chamber, initiated by at least one initiator having a reinforcing charge and including at least one propellant having an optionally adjusted oxygen balance, and a secondary compound, in a secondary chamber, including an oxidant constituent capable of delivering only gas by decomposition and at least one reducing additive having a function of contributing nitrogen, the additive being present in a proportion by weight less than about 70% of the weight of the primary-secondary compound.
    Type: Application
    Filed: October 7, 2005
    Publication date: April 6, 2006
    Applicants: Seva Technologies, a corporation of France, Etienne LaCroix, a corporation of France
    Inventors: Paul-Philippe Cord, Virginie Desbleumortiers, Fabrice Bouyer, Michael Niehaus
  • Patent number: 6656318
    Abstract: The invention concerns a method of joining two reinforced thermoplastic material tubes having the same diameter. Ends of the two tubes are first butt welded along a peripheral weld. After forming the weld, a reinforced thermoplastic material outer jacket is fitted over most of the length of the peripheral weld, extending on either side of the weld over end sections of the two tubes. The outer jacket is heated and pressed radially until the outer jacket and the end sections of the two tubes interpenetrate.
    Type: Grant
    Filed: October 4, 2000
    Date of Patent: December 2, 2003
    Assignee: Seva
    Inventors: Alain Sabouraud, Alain Tournier, Michel Derycke, Gerard Joly
  • Patent number: 6422293
    Abstract: Placed in a box (1) is a ceramic shell (21) delimiting a casting space (22), the shell being surrounded by a mass of binder-free sand (23). The casting space is connected to a source (4) of liquid metal located underneath, in which are applied, in succession, a pressure (P1) bringing the liquid to the threshold of the casting space (22), a pressure (P2) slightly greater than that necessary for filling this space, and then a marked overpressure (P3); finally, the pressure is brought back down to the first value (P1). When the casting space has been filled, an underpressure is created in the space containing the mass of sand (23) in order to prevent any deformation of the shell (21) due to the overpressure (P3), at least until the formation of a metal skin against the shell and at most until the start of the reduction in the overpressure in the source (4) of liquid metal.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: July 23, 2002
    Assignee: SEVA
    Inventors: Jean-Louis Comarteau, Christophe Liebaut, Alain Reny, Didier Thomas
  • Patent number: 6354052
    Abstract: A method of forming a composite profile including a hollow body with approximately parallel opposite walls and a covering sheet fixed against a first one of the walls includes heating a portion of the composite profile to form a temperature gradient. A hot forming projection is then pressed against a second one of the walls so as to bring the first wall into contact with the second wall at a formed region. At least one section of the profile is then pivoted about the formed region so as to produce a folding line.
    Type: Grant
    Filed: December 7, 1999
    Date of Patent: March 12, 2002
    Assignee: SEVA
    Inventor: André Guinet
  • Patent number: 6042662
    Abstract: This process makes it possible to manufacture articles of any shape by stamping, in which articles the matrix of the alloy has to have a coarse-grained structure. According to the invention, a partial hot-forming operation is carried out by stamping a blank made of an oxide-dispersion-strengthened alloy, especially a nickel-based alloy, having an initial ultrafine-grained structure, in order to form a shaped component, this shaped component is subjected to a secondary recrystallization heat treatment so as to develop an abnormal grain growth, and then a new hot-forming operation is carried out by stamping in order to give the recrystallized shaped component the final shape of the article.
    Type: Grant
    Filed: June 18, 1998
    Date of Patent: March 28, 2000
    Assignee: SEVA
    Inventor: Jean-Paul Bagard