Patents by Inventor Jean-Antoine Gruss
Jean-Antoine Gruss 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).
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Patent number: 10738848Abstract: According to an aspect, this invention relates to a cooling device for a disc brake, the device extending in a longitudinal direction and comprising a first portion configured to surround the discs of the brake, intended for being arranged facing the side surfaces of the brake discs and configured to capture, by irradiation and/or convection, the heat generated by the discs during the friction. The cooling device further includes a second portion, secured and thermally coupled to the first portion, offset in the longitudinal direction relative to the first portion, and provided with tins extending radially relative to the longitudinal direction and configured to dissipate the heat captured by the first portion, by convection and/or irradiation, into the ambient air.Type: GrantFiled: May 4, 2016Date of Patent: August 11, 2020Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Jean-Antoine Gruss, Frederic Ducros
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Publication number: 20180216684Abstract: According to an aspect, this invention relates to a cooling device for a disc brake, the device extending in a longitudinal direction and comprising a first portion configured to surround the discs of the brake, intended for being arranged facing the side surfaces of the brake discs and configured to capture, by irradiation and/or convection, the heat generated by the discs during the friction. The cooling device further includes a second portion, secured and thermally coupled to the first portion, offset in the longitudinal direction relative to the first portion, and provided with tins extending radially relative to the longitudinal direction and configured to dissipate the heat captured by the first portion, by convection and/or irradiation, into the ambient air.Type: ApplicationFiled: May 4, 2016Publication date: August 2, 2018Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Jean-Antoine GRUSS, Frederic DUCROS
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Publication number: 20160131444Abstract: A heat exchange structure, and an assembly as well as to a heat exchange device comprising such a structure, applying heat transfer by boiling of a liquid and comprising a substrate and at least one layer intended to be in contact with a liquid and at least partly positioned on the substrate. The composition of this layer comprises at least a molecular switch having a lower critical solubility temperature TLCST above which it gives the layer non-wetting properties towards the liquid and below which it gives the layer wetting properties towards the liquid, this lower critical solubility temperature TLCST of the molecular switch being selected so as to be greater than or equal to the saturation temperature Tsat of the liquid.Type: ApplicationFiled: June 13, 2014Publication date: May 12, 2016Inventors: Jean-Antoine GRUSS, Remi Bertossi, Nadia Caney, Philippe Marty, Olivier Poncelet, Antoine Voirand
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Patent number: 9310101Abstract: A set of heat pipes for solar collectors is provided. The set includes a plurality of heat pipes, each heat pipe being suitable for being laid out in a respective solar collector, and including a heat pipe fluid, a first sheet and a second sheet locally merged with each other and delimiting a reservoir. The reservoir containing the heat pipe fluid extends over a hot part for evaporating the heat pipe fluid and a cold part for condensing the heat pipe fluid, and is formed by an interstice between the two sheets. The reservoirs of at least two heat pipes are delimited by a same first sheet and a same second sheet.Type: GrantFiled: January 21, 2010Date of Patent: April 12, 2016Assignees: SOPHIA ANTIPOLIS ENERGIE DEVELOPPEMENT, COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Jean-Antoine Gruss, Christian Lenotre, Alain Marechal, Didier Rossi, Michel Wohrer
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Patent number: 9027347Abstract: A solar collector (26) includes: an outer tube (64) of circular cross-section, closed at one of its ends, an absorption layer (52) arranged inside the outer tube (64), for absorbing solar radiation (Rs), and a heat pipe (56) including a hot part (58) laid out inside the outer tube (64), a cold part (60) arranged outside the outer tube (64), and a reservoir (62) containing a heat pipe fluid (63) and extending over the hot part (58) and the cold part (60). The outer tube (64) is hermetically closed around the heat pipe (56) at the other of its ends, a vacuum being formed inside said outer tube (64). For the hot part (58) of the heat pipe (56), the reservoir (62) is applied at least locally against the absorption layer (52).Type: GrantFiled: February 8, 2010Date of Patent: May 12, 2015Assignees: Sophia Antipolis Energie Developpement, Commissariat a l'Energie Atomique et aux Energies AlternativesInventors: Jean-Antoine Gruss, Christian LenĂ´tre, Alain Marechal, Didier Rossi, Michel Wohrer
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Publication number: 20120260962Abstract: An electric generator based on a thermoelectric effect includes at least a heat source, a heat dissipator and a thermoelectric converter provided with at least two areas respectively in contact with the heat source and the heat dissipator. The heat source is the center of an exothermic chemical reaction, such as the catalytic combustion of hydrogen. The heat dissipator is the center of an endothermic chemical reaction, at least one product of which forms one of the reagents of the exothermic chemical reaction. Once it is formed by the heat dissipator, said product is then directed towards the input of the heat source in order to react there. The endothermic chemical reaction is more particularly a steam reforming reaction for methanol.Type: ApplicationFiled: November 16, 2010Publication date: October 18, 2012Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Tristan Caroff, Philippe Coronel, Jean-Antoine Gruss, Marc Plissonnier
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Patent number: 8187559Abstract: The invention relates to a plate (10a) intended to be integrated in a stack of plates in a heat exchanger system, the plate comprising a plurality of channels (38) distributed in rows (40), each row comprising side walls (42) arranged opposite one another and spaced apart from one another in a first direction (44), so that two directly consecutive side walls delimit one of the channels (38), the rows being arranged opposite one another and spaced apart from one another in a second direction (46) which is perpendicular to the first. Furthermore, in the fluid circulation zone (20) of the plate incorporating the channels (38), only the latter are coated with a catalyst allowing a chemical reaction.Type: GrantFiled: April 18, 2007Date of Patent: May 29, 2012Assignees: Commissariat a l'Energie Atomique, Centre National de la Recherche Scientifique, Renault S.A.S.Inventors: Jean-Antoine Gruss, Emmanuelle Duval-Brunel, Andre Van Veen, Claude Mirodatos
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Publication number: 20120124999Abstract: A solar collector (26) includes: an outer tube (64) of circular cross-section, closed at one of its ends, an absorption layer (52) arranged inside the outer tube (64), for absorbing solar radiation (Rs), and a heat pipe (56) including a hot part (58) laid out inside the outer tube (64), a cold part (60) arranged outside the outer tube (64), and a reservoir (62) containing a heat pipe fluid (63) and extending over the hot part (58) and the cold part (60). The outer tube (64) is hermetically closed around the heat pipe (56) at the other of its ends, a vacuum being formed inside said outer tube (64). For the hot part (58) of the heat pipe (56), the reservoir (62) is applied at least locally against the absorption layer (52).Type: ApplicationFiled: February 8, 2010Publication date: May 24, 2012Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, SOPHIA ANTIPOLIS ENERGIE DEVELOPPEMENTInventors: Jean-Antoine Gruss, Christian LenĂ´tre, Alain Marechal, Didier Rossi, Wohrer Michel
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Publication number: 20120048519Abstract: A set of heat pipes for solar collectors includes a plurality of heat pipes (54), each heat pipe (54) being suitable for being laid out in a respective solar collector, and including a heat pipe fluid (58), a first sheet and a second sheet (62) locally merged with each other and delimiting a reservoir (64). The reservoir (64) containing the heat pipe fluid (58) extends over a hot part (66) for evaporating the heat pipe fluid (58) and a cold part (68) for condensing the heat pipe fluid (58), and is formed by an interstice between the two sheets (62). The reservoirs (64) of at least two heat pipes (54) are delimited by a same first sheet and a same second sheet (62).Type: ApplicationFiled: January 21, 2010Publication date: March 1, 2012Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, SOPHIA ANTIPOLIS ENERGIE DEVELOPPEMENTInventors: Jean-Antoine Gruss, Christian Lenotre, Alain Marechal, Didier Rossi, Michel Wohrer
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Publication number: 20120042933Abstract: A photovoltaic conversion device including an area for collecting photons provided by luminous radiation and an area for converting the photons into electrical energy, the collecting area and the converting area being distinct, a fluid loaded with photoluminescent particles being for flowing between the collecting area and the converting area, the particles collecting photons and conveying them to the converting area in which they are reemitted.Type: ApplicationFiled: January 21, 2010Publication date: February 23, 2012Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENE ALTInventors: Jean-Antoine Gruss, Claude Jaussaud, Olivier Poncelet
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Publication number: 20110305838Abstract: A device intended to accomplish the deposition of particles of nanometric size on at least one part of the surface (4) of a substrate (2), including a first enclosure (14) intended to contain a liquid (8) charged with particles (6) of nanometric size, in which the first enclosure (14) is subject to a pressure higher than atmospheric pressure, and including means of heating (16) the said fluid able to raise the fluid to its boiling temperature, a second enclosure (20) pressurised at a pressure roughly equal to that of the first enclosure (14), inside which the deposition by boiling occurs, in which means of heating (24) are provided to heat at least a part of the surface (4) of the substrate (2), and in which the first enclosure (14) is connected to the second enclosure (20) to allow the second enclosure (20) to be supplied with the fluid raised roughly to its boiling temperature.Type: ApplicationFiled: January 5, 2010Publication date: December 15, 2011Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENE ALTInventors: Hai Trieu Phan, Jean-Antoine Gruss, Olivier Poncelet
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Patent number: 8067736Abstract: The electromagnetic radiation detector comprises at least one membrane suspended above a substrate by at least one nanowire. The nanowire forms a thermoelement comprising an electrically conducting core and external layer, respectively doped of different types and insulated form one another by an electrical insulation layer. When the substrate and membrane are at different temperatures, the nanowires constitutes a thermometer providing measurement signals, by Seebeck effect, representative of heating the membrane.Type: GrantFiled: October 30, 2008Date of Patent: November 29, 2011Assignee: Commissariat a l'Energie AtomiqueInventors: Jean-Antoine Gruss, Jean-Louis Ouvrier-Buffet
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Patent number: 8053729Abstract: The electromagnetic radiation detector compromises at least one radiation absorption membrane transforming the absorbed energy into heat transmitted to at least one resistive thermometer having a resistance varying with temperature. Each absorption membrane is suspended above a substrate by a nanowire connected to the central area of the membrane. The nanowire comprises an electrically conducting core and an electrically conducting external layer electrically insulated from one another and respectively connected to measuring areas of said thermometer. The nanowire serves the purpose both of support for the membrane and of electrical connection between the measuring areas and a circuit arranged at the level of the substrate.Type: GrantFiled: October 30, 2008Date of Patent: November 8, 2011Assignee: Commissariat a l'Energie AtomiqueInventors: Jean-Louis Ouvrier-Buffet, Jean-Antoine Gruss
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Patent number: 7868243Abstract: Method for producing a nanostructure based on interconnected nanowires, nanostructure and use as thermoelectric converter The nanostructure comprises two arrays of nanowires made from respectively n-doped and p-doped semi-conducting material. The nanowires of the first array, for example of n type, are formed for example by VLS growth. A droplet of electrically conducting material that acted as catalyst during the growth step remains on the tip of each nanowire of the first array at the end of growth. A nanowire of the second array is then formed around each nanowire of the first array by covering a layer of electrically insulating material formed around each nanowire of the first array, and the associated droplet, with a layer of p-type semi-conducting material. A droplet thus automatically connects a nanowire of the first array with a single coaxial nanowire of the second array. This type of nanostructure can be used in particular to form a thermoelectric converter.Type: GrantFiled: July 13, 2007Date of Patent: January 11, 2011Assignee: Commissariat a l'Energie AtomiqueInventors: Marc Plissonnier, Frederic Gaillard, Raphael Salot, Jean-Antoine Gruss
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Patent number: 7802437Abstract: The electronic component with heat transfer by boiling and condensation comprises heat exchange surfaces immersed in a heat conducting fluid constituted by the free ends of nanowires of a thermoelectric converter. An electrically insulating coating material with a low thermal conduction partially covers the nanowires above the heat conducting fluid. Each nanowire forms a thermocouple composed of two coaxial branches made from materials of different natures separated by a layer of electrically insulating material and electrically connected individually to the free end of the nanowire.Type: GrantFiled: July 13, 2007Date of Patent: September 28, 2010Assignee: Commissariat a l'Energie AtomiqueInventors: Jean-Antoine Gruss, Marc Plissonnier
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Publication number: 20090140145Abstract: The electromagnetic radiation detector compromises at least one radiation absorption membrane transforming the absorbed energy into heat transmitted to at least one resistive thermometer having a resistance varying with temperature. Each absorption membrane is suspended above a substrate by a nanowire connected to the central area of the membrane. The nanowire comprises an electrically conducting core and an electrically conducting external layer electrically insulated from one another and respectively connected to measuring areas of said thermometer. The nanowire serves the purpose both of support for the membrane and of electrical connection between the measuring areas and a circuit arranged at the level of the substrate.Type: ApplicationFiled: October 30, 2008Publication date: June 4, 2009Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUEInventors: Jean-Louis Ouvrier-Buffet, Jean-Antoine Gruss
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Publication number: 20090121136Abstract: The electromagnetic radiation detector comprises at least one membrane suspended above a substrate by at least one nanowire. The nanowire forms a thermoelement comprising an electrically conducting core and external layer, respectively doped of different types and insulated from one another by an electrical insulation layer. When the substrate and membrane are at different temperatures, the nanowire constitutes a thermometer providing measurement signals, by Seebeck effect, representative of heating of the membrane.Type: ApplicationFiled: October 30, 2008Publication date: May 14, 2009Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUEInventors: Jean-Antoine Gruss, Jean-Louis Ouvrier-Buffet
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Publication number: 20090104488Abstract: The invention relates to a plate (10a) intended to be integrated in a stack of plates in a heat exchanger system, the plate comprising a plurality of channels (38) distributed in rows (40), each row comprising side walls (42) arranged opposite one another and spaced apart from one another in a first direction (44), so that two directly consecutive side walls delimit one of the channels (38), the rows being arranged opposite one another and spaced apart from one another in a second direction (46) which is perpendicular to the first. Furthermore, in the fluid circulation zone (20) of the plate incorporating the channels (38), only the latter are coated with a catalyst allowing a chemical reaction.Type: ApplicationFiled: April 18, 2007Publication date: April 23, 2009Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, RENAULT S.A.S.Inventors: Jean-Antoine Gruss, Emmanuelle Duval-Brunel, Andre Van Veen, Claude Mirodatos
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Publication number: 20080142066Abstract: Method for producing a nanostructure based on interconnected nanowires, nanostructure and use as thermoelectric converter The nanostructure comprises two arrays of nanowires made from respectively n-doped and p-doped semi-conducting material. The nanowires of the first array, for example of n type, are formed for example by VLS growth. A droplet of electrically conducting material that acted as catalyst during the growth step remains on the tip of each nanowire of the first array at the end of growth. A nanowire of the second array is then formed around each nanowire of the first array by covering a layer of electrically insulating material formed around each nanowire of the first array, and the associated droplet, with a layer of p-type semi-conducting material. A droplet thus automatically connects a nanowire of the first array with a single coaxial nanowire of the second array. This type of nanostructure can be used in particular to form a thermoelectric converter.Type: ApplicationFiled: July 13, 2007Publication date: June 19, 2008Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUEInventors: Marc Plissonnier, Frederic Gaillard, Raphael Salot, Jean-Antoine Gruss
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Publication number: 20080017356Abstract: The electronic component with heat transfer by boiling and condensation comprises heat exchange surfaces immersed in a heat conducting fluid constituted by the free ends of nanowires of a thermoelectric converter. An electrically insulating coating material with a low thermal conduction partially covers the nanowires above the heat conducting fluid. Each nanowire forms a thermocouple composed of two coaxial branches made from materials of different natures separated by a layer of electrically insulating material and electrically connected individually to the free end of the nanowire.Type: ApplicationFiled: July 13, 2007Publication date: January 24, 2008Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUEInventors: Jean-Antoine Gruss, Marc Plissonnier