Patents by Inventor Alain Bruyere
Alain Bruyere 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: 9931810Abstract: The invention concerns a process for preparing a ribbon of reinforcement strands or filaments associated on each of its faces with a polymeric binder, said ribbon having a given width substantially constant over its entire length, in which the strands or filaments extend in a direction parallel to the length of the ribbon, wherein it comprises the following steps: a) adjustment of the ribbon width to the desired width thanks to a dimensioning device, b) association of the ribbon on each of its faces with a polymeric binder allowing the assurance of a homogenous cohesion of the ribbon, such that the total weight of the binder does not exceed 25% of the total weight of the obtained ribbon, as well as the ribbons obtainable by such a process.Type: GrantFiled: March 28, 2017Date of Patent: April 3, 2018Assignee: Hexcel ReinforcementsInventors: Jean-Marc Beraud, Alain Bruyere, Jean-Florent Lamethe, Jacques Ducarre
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Publication number: 20170232704Abstract: The invention concerns a process for preparing a ribbon of reinforcement strands or filaments associated on each of its faces with a polymeric binder, said ribbon having a given width substantially constant over its entire length, in which the strands or filaments extend in a direction parallel to the length of the ribbon, wherein it comprises the following steps: a) adjustment of the ribbon width to the desired width thanks to a dimensioning device, b) association of the ribbon on each of its faces with a polymeric binder allowing the assurance of a homogenous cohesion of the ribbon, such that the total weight of the binder does not exceed 25% of the total weight of the obtained ribbon, as well as the ribbons obtainable by such a process.Type: ApplicationFiled: March 28, 2017Publication date: August 17, 2017Inventors: Jean-Marc Beraud, Alain Bruyere, Jean-Florent Lamethe, Jacques Ducarre
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Patent number: 9702066Abstract: The invention relates to a composite material in which at least one reinforcement thread is deposited on a surface according to a path having at least one curved area on the deposition surface, wherein the reinforcement thread is connected to the surface by a polymeric binder. A twist is applied to the reinforcement thread before the deposition thereof at least in order to compensate the length differences of the extreme paths of the thread on either side of the width as measured in a direction parallel to the deposition surface.Type: GrantFiled: February 25, 2014Date of Patent: July 11, 2017Assignee: Hexcel Reinforcements, S.A.S.Inventors: Jean-Marc Beraud, Alain Bruyere
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Patent number: 9702065Abstract: The invention relates to a method for making a composite part including an assembly of superimposed webs of reinforcement threads imbedded at least partially in a polymer matrix, said part including at least one curved area and the method comprising steps of draping or stacking plies of a composite material, characterized in that, in at least one area adjacent to a curved area, at least one draping or stacking step is carried out with a ply of composite material, that comprises a web, or twisted thread web, including at least one twisted reinforcement thread in order to at least compensate the length differences of the extreme paths of the thread on either side of the width as measured in a direction parallel to the surface of the web; the invention also relates to the composite materials thus obtained.Type: GrantFiled: June 10, 2008Date of Patent: July 11, 2017Assignee: Hexcel Reinforcements, S.A.S.Inventors: Jean-Marc Beraud, Alain Bruyere, Jean-Benoit Thiel, Jacques Ducarre
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Patent number: 9682515Abstract: The invention concerns a process for preparing a ribbon of reinforcement strands or filaments associated on each of its faces with a polymeric binder, said ribbon having a given width substantially constant over its entire length, in which the strands or filaments extend in a direction parallel to the length of the ribbon, wherein it comprises the following steps: a) adjustment of the ribbon width to the desired width thanks to a dimensioning device, b) association of the ribbon on each of its faces with a polymeric binder allowing the assurance of a homogenous cohesion of the ribbon, such that the total weight of the binder does not exceed 25% of the total weight of the obtained ribbon, as well as the ribbons obtainable by such a process.Type: GrantFiled: November 23, 2009Date of Patent: June 20, 2017Assignee: Hexcel ReinforcementsInventors: Jean-Marc Beraud, Alain Bruyere, Jean-Florent Lamethe, Jacques Ducarre
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Patent number: 9637850Abstract: A method for spreading a textile sheet where the sheet is caused to run between at least two rotary rollers, the axes of which extend parallel to each other and substantially perpendicular to the running direction of sheet. The sheet under pressure is caused to pass between at least one pressure generator of the rollers driven into axial oscillation and in phase opposition. At least one pressure generator of the rollers has adjustable pressure values along the generator in order to spread the sheet with a low thickness variability.Type: GrantFiled: March 6, 2014Date of Patent: May 2, 2017Assignee: Hexcel ReinforcementsInventors: Jean-Marc Beraud, Alain Bruyere
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Publication number: 20150361598Abstract: Fabric having warp and weft yarns where the filaments in the yarns freely move relatively to each other. The basis weight of the fabric is related to the thickness standard deviation of a stack of three identical fabrics deposited on each other. For basis weights greater than or equal to 40 g/m2 and less than 100 g/m2, the thickness standard deviation is less than or equal to 35 ?m. For basis weights greater than or equal to 100 g/m2 and less than or equal to 160 g/m2, the thickness standard deviation is less than or equal to 50 ?m. For basis weights greater than 160 g/m2 and less than or equal to 200 g/m2, the thickness standard deviation is less than or equal to 60 ?m. For basis weights greater than 200 g/m2 and less than or equal to 400 g/m2, the thickness standard deviation is less than or equal to 90 ?m.Type: ApplicationFiled: March 6, 2014Publication date: December 17, 2015Inventors: Jean-Marc Beraud, Alain Bruyere
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Publication number: 20150354119Abstract: A method for spreading a textile sheet where the sheet is caused to run between at least two rotary rollers, the axes of which extend parallel to each other and substantially perpendicular to the running direction of sheet. The sheet under pressure is caused to pass between at least. one pressure generator of the rollers driven into axial oscillation and in phase opposition. At least one pressure generator of the rollers has adjustable pressure values along the generator in order to spread the sheet with a low thickness variability.Type: ApplicationFiled: March 6, 2014Publication date: December 10, 2015Inventors: Jean-Marc Beraud, Alain Bruyere
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Publication number: 20140165529Abstract: The invention relates to a composite material in which at least one reinforcement thread is deposited on a surface according to a path having at least one curved area on the deposition surface, wherein the reinforcement thread is connected to the surface by a polymeric binder. A twist is applied to the reinforcement thread before the deposition thereof at least in order to compensate the length differences of the extreme paths of the thread on either side of the width as measured in a direction parallel to the deposition surface.Type: ApplicationFiled: February 25, 2014Publication date: June 19, 2014Applicant: Hexcel Reinforcements, S.A.S.Inventors: Jean-Marc Beraud, Alain Bruyere
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Patent number: 8696850Abstract: The invention relates to a method of making a composite material in which at least one reinforcement thread is deposited on a surface according to a path having at least one curved area on the deposition surface, wherein the reinforcement thread is connected to the surface by a polymeric binder, characterized in that a twist is applied to the reinforcement thread before the deposition thereof at least in order to compensate the length differences of the extreme paths of the thread on either side of the width as measured in a direction parallel to the deposition surface: the invention also relates to the composite material thus obtained.Type: GrantFiled: June 10, 2008Date of Patent: April 15, 2014Assignee: Hexcel Reinforcements S.A.S.Inventors: Jean-Marc Beraud, Alain Bruyere
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Patent number: 8486216Abstract: A process for placing at least one fiber element on a surface is disclosed so as to provide a deposited fiber element having a width that varies longitudinally. The process may provide a step in which the width of the fiber element is modified upstream of the deposition step using a width control device. A device for performing the process is also disclosed. Further, fibrous sheets containing one or more deposited fiber element having a width that varies longitudinally are also disclosed. Preforms formed from one or more of the fibrous sheets are also disclosed.Type: GrantFiled: July 28, 2006Date of Patent: July 16, 2013Assignee: Hexcel ReinforcementInventors: Alain Bruyère, Jean Benoit Thiel
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Publication number: 20120015135Abstract: The invention concerns a process for preparing a ribbon of reinforcement strands or filaments associated on each of its faces with a polymeric binder, said ribbon having a given width substantially constant over its entire length, in which the strands or filaments extend in a direction parallel to the length of the ribbon, wherein it comprises the following steps: a) adjustment of the ribbon width to the desired width thanks to a dimensioning device, b) association of the ribbon on each of its faces with a polymeric binder allowing the assurance of a homogenous cohesion of the ribbon, such that the total weight of the binder does not exceed 25% of the total weight of the obtained ribbon, as well as the ribbons obtainable by such a process.Type: ApplicationFiled: November 23, 2009Publication date: January 19, 2012Applicant: HEXCEL REINFORCEMENTSInventors: Jean-Marc Beraud, Alain Bruyere, Jean-Florent Lamethe, Jacques Ducarre
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Patent number: 8062448Abstract: A plurality of unidirectional sheets (30a, 30b, 30c) are superposed in different directions and they are bonded together. At least one of the unidirectional sheets is made by spreading a tow so as to obtain uniform thickness, width not less than 5 cm, and a weight of no more than 300 g/m2, cohesion being imparted to the sheet so as to enable it to be handled prior to being superposed with other sheets. Advantageously, the unidirectional sheets are made of carbon fibers and are obtained by spreading out large tows.Type: GrantFiled: April 25, 2008Date of Patent: November 22, 2011Assignees: Snecma Propulsion Solide, Hexcel ReinforcementsInventors: Bruno Bompard, Pierre Olry, Renaud Duval, Alain Bruyere, Dominique Coupe, Jean Aucagne
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Publication number: 20100173143Abstract: The invention relates to a method for making a composite part including an assembly of superimposed webs of reinforcement threads imbedded at least partially in a polymer matrix, said part including at least one curved area and the method comprising steps of draping or stacking plies of a composite material, characterised in that, in at least one area adjacent to a curved area, at least one draping or stacking step is carried out with a ply of composite material, that comprises a web, or twisted thread web, including at least one twisted reinforcement thread in order to at least compensate the length differences of the extreme paths of the thread on either side of the width as measured in a direction parallel to the surface of the web; the invention also relates to the composite materials thus obtained.Type: ApplicationFiled: June 10, 2008Publication date: July 8, 2010Applicant: Hexcel Reinforcements, S.A.S.Inventors: Jean-Marc Beraud, Alain Bruyere, Jean-Benoit Thiel, Jacques Ducarre
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Publication number: 20100173152Abstract: The invention relates to a method for making a composite material in which at least one reinforcement thread is deposited on a surface according to a path having at least one curved area on the deposition surface, wherein the reinforcement thread is connected to the surface by a polymeric hinder. characterised in that a twist is applied to the reinforcement thread before the deposition thereof at least in order to compensate the length differences of the extreme paths of the thread on either side of the width as measured in a direction parallel to the deposition surface: the invention also relates to the composite materials thus obtained.Type: ApplicationFiled: June 10, 2008Publication date: July 8, 2010Inventors: Jean-Marc Beraud, Alain Bruyere
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Publication number: 20080223505Abstract: A plurality of unidirectional sheets (30a, 30b, 30c) are superposed in different directions and they are bonded together. At least one of the unidirectional sheets is made by spreading a tow so as to obtain uniform thickness, width not less than 5 cm, and a weight of no more than 300 g/m2, cohesion being imparted to the sheet so as to enable it to be handled prior to being superposed with other sheets. Advantageously, the unidirectional sheets are made of carbon fibers and are obtained by spreading out large tows.Type: ApplicationFiled: April 25, 2008Publication date: September 18, 2008Applicants: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation - S.N.E.C.M.A, Hexcel ReinforcementsInventors: Bruno Bompard, Pierre Olry, Renaud Duval, Alain Bruyere, Dominique Coupe, Jean Aucagne
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Publication number: 20070023139Abstract: A process for placing at least one fiber element (111) on a surface (S) is disclosed so as to provide a deposited fiber element (111) having a width that varies longitudinally. The process may provide a step in which the width of the fiber element is modified upstream of the deposition step using a width control device. A device for performing the process is also disclosed. Further, fibrous sheets containing one or more deposited fiber element (111) having a width that varies longitudinally are also disclosed. Preforms formed from one or more of the fibrous sheets are also disclosed.Type: ApplicationFiled: July 28, 2006Publication date: February 1, 2007Inventors: Alain Bruyere, Jean Thiel
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Publication number: 20070026215Abstract: A process for placing at least one fiber element (111) on a surface (S) is disclosed, wherein the fiber element (111) is deposited on the surface (S) and is bound to at least one part of the surface and a width (l) of the deposited fiber element (111) varies longitudinally. Preforms containing one superimposition of several fibrous sheets extending in different directions and bound with each other are disclosed, wherein at least one of the fibrous sheets contains at least one fiber element whose width varies longitudinally.Type: ApplicationFiled: July 28, 2006Publication date: February 1, 2007Inventors: Alain Bruyere, Jean Thiel
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Patent number: 7115180Abstract: Process and system for fabricating a multidirectional fibrous reinforcement designed to be a porous preform for producing a part made of a composite material. Reinforcing thread is deposited in successive layers on a support surface. A binder is provided in association with the reinforcing thread so as to adhere the reinforcing thread to the support surface and the successive layers of thread. The reinforcing thread is pressed against the support surface in a manner that exerts a pressure substantially perpendicular to the support surface at the point where the thread is deposited. The binder may be pre-applied to the support surface or it can be applied simultaneously with the reinforcement thread.Type: GrantFiled: April 7, 2004Date of Patent: October 3, 2006Assignee: Hexcel ReinforcementsInventor: Alain Bruyère
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Publication number: 20050205213Abstract: A plurality of unidirectional sheets (30a, 30b, 30c) are superposed in different directions and they are bonded together. At least one of the unidirectional sheets is made by spreading a tow so as to obtain uniform thickness, width not less than 5 cm, and a weight of no more than 300 g/m2, cohesion being imparted to the sheet so as to enable it to be handled prior to being superposed with other sheets. Advantageously, the unidirectional sheets are made of carbon fibers and are obtained by spreading out large tows.Type: ApplicationFiled: April 22, 2005Publication date: September 22, 2005Inventors: Bruno Bompard, Pierre Olry, Renaud Duval, Alain Bruyere, Dominique Coupe, Jean Aucagne