Patents by Inventor Laurence Maille
Laurence Maille 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: 11530166Abstract: A process for manufacturing pyrocarbon, includes forming pyrocarbon by a calefaction process from at least one C2 to C6 alcohol or polyalcohol precursor, the precursor being ethanol, rough laminar pyrocarbon being obtained by imposing a temperature of between 1250° C. and 1325° C. during calefaction.Type: GrantFiled: October 18, 2018Date of Patent: December 20, 2022Assignees: SAFRAN CERAMICS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Arnaud Delehouze, Amandine Lorriaux, Laurence Maille, Patrick David
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Patent number: 11530727Abstract: A process for manufacturing a friction component made of composite material, includes the densification of a fibrous preform of carbon yarns by a matrix including at least pyrocarbon and at least one ZrOxCy phase, where 1?x?2 and 0?y?1, the matrix being formed by chemical vapor infiltration at least from a first gaseous precursor of pyrocarbon and a second gaseous precursor including zirconium, the second precursor being an alcohol or a C1 to C6 polyalcohol modified by linking the oxygen atom of at least one alcohol function to a group of formula —Zr—R3, the substituents R being identical or different, and R being selected from: —H, C1 to C5 carbon chains and halogen atoms.Type: GrantFiled: October 16, 2018Date of Patent: December 20, 2022Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, SAFRAN CERAMICSInventors: Eric Bouillon, Arnaud Delehouze, Amandine Lorriaux, Laurence Maille
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Patent number: 11472744Abstract: Method for the preparation, by means of a heating technique, of a composite material composed of a matrix of at least a first oxide of at least one metal and/or at least one metalloid reinforced by reinforcements in at least a second oxide of at least one metal and/or at least one metalloid, characterised in that the following successive steps are carried out: the reinforcements are placed in at least one liquid precursor of the first oxide of at least one metal and/or at least one metalloid; said reinforcements and the liquid precursor are heated so as to form the first oxide by means of the thermal decomposition of said liquid precursor, and to deposit the first oxide thus formed around the reinforcements and between the reinforcements thus forming the matrix.Type: GrantFiled: February 21, 2018Date of Patent: October 18, 2022Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE BORDEAUXInventors: Alexandre Allemand, Patrick David, Pierre Broisson, Clémence Besnard, Laurence Maille
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Publication number: 20210188641Abstract: A process for manufacturing pyrocarbon, includes forming pyrocarbon by a calefaction process from at least one C2 to C6 alcohol or polyalcohol precursor, the precursor being ethanol, rough laminar pyrocarbon being obtained by imposing a temperature of between 1250° C. and 1325° C. during calefaction.Type: ApplicationFiled: October 18, 2018Publication date: June 24, 2021Inventors: Arnaud DELEHOUZE, Amandine LORRIAUX, Laurence MAILLE, Patrick DAVID
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Publication number: 20200377418Abstract: Method for the preparation, by means of a heating technique, of a composite material composed of a matrix of at least a first oxide of at least one metal and/or at least one metalloid reinforced by reinforcements in at least a second oxide of at least one metal and/or at least one metalloid, characterised in that the following successive steps are carried out: the reinforcements are placed in at least one liquid precursor of the first oxide of at least one metal and/or at least one metalloid; said reinforcements and the liquid precursor are heated so as to form the first oxide by means of the thermal decomposition of said liquid precursor, and to deposit the first oxide thus formed around the reinforcements and between the reinforcements thus forming the matrix.Type: ApplicationFiled: February 21, 2018Publication date: December 3, 2020Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE BORDEAUXInventors: Alexandre ALLEMAND, Patrick DAVID, Pierre BROISSON, Clemence BESNARD, Laurence MAILLE
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Publication number: 20200325950Abstract: A process for manufacturing a friction component made of composite material, includes the densification of a fibrous preform of carbon yarns by a matrix including at least pyrocarbon and at least one ZrOxCy phase, where 1?x?2 and 0?y?1, the matrix being formed by chemical vapor infiltration at least from a first gaseous precursor of pyrocarbon and a second gaseous precursor including zirconium, the second precursor being an alcohol or a C1 to C6 polyalcohol modified by linking the oxygen atom of at least one alcohol function to a group of formula —Zr—R3, the substituents R being identical or different, and R being selected from: —H, C1 to C5 carbon chains and halogen atoms.Type: ApplicationFiled: October 16, 2018Publication date: October 15, 2020Inventors: Eric BOUILLON, Arnaud DELEHOUZE, Amandine LORRIAUX, Laurence MAILLE
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Patent number: 10723658Abstract: A method of fabricating a ceramic material, the method including forming a ceramic material by performing a first chemical reaction at least between a first powder of an intermetallic compound and a reactive gas phase, a liquid phase being present around the grains of the first powder during the first chemical reaction, the liquid gas phase being obtained from a second powder of a metallic compound by melting the second powder or as a result of a second chemical reaction between at least one element of the first powder and at least one metallic element of the second powder, a working temperature being imposed during the formation of the ceramic material, which temperature is low enough to avoid melting the first powder.Type: GrantFiled: December 20, 2016Date of Patent: July 28, 2020Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, SAFRAN CERAMICSInventors: Laurence Maille, Jérôme Roger, Yann Le Petitcorps, Bernard Reignier
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Publication number: 20180370859Abstract: A method of fabricating a ceramic material, the method including forming a ceramic material by performing a first chemical reaction at least between a first powder of an intermetallic compound and a reactive gas phase, a liquid phase being present around the grains of the first powder during the first chemical reaction, the liquid gas phase being obtained from a second powder of a metallic compound by melting the second powder or as a result of a second chemical reaction between at least one element of the first powder and at least one metallic element of the second powder, a working temperature being imposed during the formation of the ceramic material, which temperature is low enough to avoid melting the first powder.Type: ApplicationFiled: December 20, 2016Publication date: December 27, 2018Inventors: Laurence MAILLE, Jérôme ROGER, Yann LE PETITCORPS, Bernard REIGNIER
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Publication number: 20160060752Abstract: A method of densifying a porous substrate with a matrix, includes subdividing the pores present in the porous substrate so as to form in the substrate a network of micropores, the subdividing being performed with a filler composition comprising at least one carbon-containing phase or carbide-containing phase that is accessible via the network of micropores; and infiltrating the network of micropores formed by the filler material by reactive chemical vapor infiltration, the infiltration being performed with a reactive gas composition that does not contain carbon and that includes at least one element suitable for reacting with the carbon of the filler composition in order to form a carbide.Type: ApplicationFiled: April 10, 2014Publication date: March 3, 2016Inventors: Sylvain JACQUES, Olivier LEDAIN, Laurence MAILLE, Adrien DELCAMP, Thierry PIQUERO
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Patent number: 8807894Abstract: Surface-area safety means (10) comprising a barrier net (20) and at least one fastener means (30), each fastener means (30) having a fastener strap (40) fastened to a segment (25) of said barrier net (20) and co-operating with a fastener member (50) suitable for fastening said fastener strap (40) to said structure (2). The fastener means (30) also include a tensioning strap (60) fastened thereto, said tensioning strap (60) including at least two tensioning eyelets (61), said fastener strap (40) having a securing system (200) for securing it to a tensioning eyelet (61) and securing the fastener strap (40) to the tensioning strap (60) by passing through a particular tensioning eyelet in order to tension said barrier net (20) to the tension corresponding to the particular tensioning eyelet.Type: GrantFiled: September 27, 2012Date of Patent: August 19, 2014Assignee: Airbus HelicoptersInventors: Olivier Bistuer, Laurence Maille, Pierre Prudhomme-Lacroix
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Patent number: 8626383Abstract: A method of determining the locations of loads in a vehicle in such a manner as to ensure mission safety in terms of loads being retained in the aircraft. On the basis of vehicle parameters, the anchor points available in this type of vehicle for retaining the loads are identified. As a function of the available loading volume(s), a possible loading configuration is calculated using at least some of the available anchor points, at least some of the retaining means, and the characteristics of the loads. The forces that might be exerted on the selected anchor points are verified as being less than maximum limits. The calculated loading configuration is confirmed, otherwise a new loading configuration is calculated.Type: GrantFiled: February 13, 2012Date of Patent: January 7, 2014Assignee: EurocopterInventors: Pierre PrudHomme-Lacroix, Laurence Maille
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Publication number: 20120221235Abstract: A method of determining the locations of loads in a vehicle in such a manner as to ensure mission safety in terms of loads being retained in the aircraft. On the basis of vehicle parameters, the anchor points available in this type of vehicle for retaining the loads are identified. As a function of the available loading volume(s), a possible loading configuration is calculated using at least some of the available anchor points, at least some of the retaining means, and the characteristics of the loads. The forces that might be exerted on the selected anchor points are verified as being less than maximum limits. The calculated loading configuration is confirmed, otherwise a new loading configuration is calculated.Type: ApplicationFiled: February 13, 2012Publication date: August 30, 2012Applicant: EUROCOPTERInventors: Pierre PrudHomme-Lacroix, Laurence Maille
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Patent number: 7676923Abstract: The invention relates to a method of manufacturing a tail structure for a rotary wing aircraft, the structure comprising: a tubular portion or duct (63) presenting two ends and including two collars or flanges (66, 70) extending respectively from each of said two ends; and two curved fairing side walls (45, 47) extending respectively around the two collars or flanges; said two side walls being made of a composite material comprising an organic matrix and reinforcement; in a method of the invention, the side walls are united by solidifying the matrix.Type: GrantFiled: December 7, 2005Date of Patent: March 16, 2010Assignee: EurocopterInventors: Laurence Maille, Luc Mouton
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Publication number: 20060169835Abstract: The invention relates to a method of manufacturing a tail structure for a rotary wing aircraft, the structure comprising: a tubular portion or duct (63) presenting two ends and including two collars or flanges (66, 70) extending respectively from each of said two ends; and two curved fairing side walls (45, 47) extending respectively around the two collars or flanges; said two side walls being made of a composite material comprising an organic matrix and reinforcement; in a method of the invention, the side walls are united by solidifying the matrix.Type: ApplicationFiled: December 7, 2005Publication date: August 3, 2006Inventors: Laurence Maille, Luc Mouton