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).

  • Patent number: 9931810
    Abstract: 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: Grant
    Filed: March 28, 2017
    Date of Patent: April 3, 2018
    Assignee: Hexcel Reinforcements
    Inventors: Jean-Marc Beraud, Alain Bruyere, Jean-Florent Lamethe, Jacques Ducarre
  • Publication number: 20170232704
    Abstract: 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: Application
    Filed: March 28, 2017
    Publication date: August 17, 2017
    Inventors: Jean-Marc Beraud, Alain Bruyere, Jean-Florent Lamethe, Jacques Ducarre
  • Patent number: 9702065
    Abstract: 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: Grant
    Filed: June 10, 2008
    Date of Patent: July 11, 2017
    Assignee: Hexcel Reinforcements, S.A.S.
    Inventors: Jean-Marc Beraud, Alain Bruyere, Jean-Benoit Thiel, Jacques Ducarre
  • Patent number: 9702066
    Abstract: 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: Grant
    Filed: February 25, 2014
    Date of Patent: July 11, 2017
    Assignee: Hexcel Reinforcements, S.A.S.
    Inventors: Jean-Marc Beraud, Alain Bruyere
  • Patent number: 9682515
    Abstract: 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: Grant
    Filed: November 23, 2009
    Date of Patent: June 20, 2017
    Assignee: Hexcel Reinforcements
    Inventors: Jean-Marc Beraud, Alain Bruyere, Jean-Florent Lamethe, Jacques Ducarre
  • Patent number: 9637850
    Abstract: 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: Grant
    Filed: March 6, 2014
    Date of Patent: May 2, 2017
    Assignee: Hexcel Reinforcements
    Inventors: Jean-Marc Beraud, Alain Bruyere
  • Publication number: 20150361598
    Abstract: 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: Application
    Filed: March 6, 2014
    Publication date: December 17, 2015
    Inventors: Jean-Marc Beraud, Alain Bruyere
  • Publication number: 20150354119
    Abstract: 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: Application
    Filed: March 6, 2014
    Publication date: December 10, 2015
    Inventors: Jean-Marc Beraud, Alain Bruyere
  • Publication number: 20140165529
    Abstract: 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: Application
    Filed: February 25, 2014
    Publication date: June 19, 2014
    Applicant: Hexcel Reinforcements, S.A.S.
    Inventors: Jean-Marc Beraud, Alain Bruyere
  • Patent number: 8696850
    Abstract: 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: Grant
    Filed: June 10, 2008
    Date of Patent: April 15, 2014
    Assignee: Hexcel Reinforcements S.A.S.
    Inventors: Jean-Marc Beraud, Alain Bruyere
  • Patent number: 8486216
    Abstract: 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: Grant
    Filed: July 28, 2006
    Date of Patent: July 16, 2013
    Assignee: Hexcel Reinforcement
    Inventors: Alain Bruyère, Jean Benoit Thiel
  • Publication number: 20120015135
    Abstract: 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: Application
    Filed: November 23, 2009
    Publication date: January 19, 2012
    Applicant: HEXCEL REINFORCEMENTS
    Inventors: Jean-Marc Beraud, Alain Bruyere, Jean-Florent Lamethe, Jacques Ducarre
  • Patent number: 8062448
    Abstract: 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: Grant
    Filed: April 25, 2008
    Date of Patent: November 22, 2011
    Assignees: Snecma Propulsion Solide, Hexcel Reinforcements
    Inventors: Bruno Bompard, Pierre Olry, Renaud Duval, Alain Bruyere, Dominique Coupe, Jean Aucagne
  • Publication number: 20100173143
    Abstract: 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: Application
    Filed: June 10, 2008
    Publication date: July 8, 2010
    Applicant: Hexcel Reinforcements, S.A.S.
    Inventors: Jean-Marc Beraud, Alain Bruyere, Jean-Benoit Thiel, Jacques Ducarre
  • Publication number: 20100173152
    Abstract: 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: Application
    Filed: June 10, 2008
    Publication date: July 8, 2010
    Inventors: Jean-Marc Beraud, Alain Bruyere
  • Publication number: 20080223505
    Abstract: 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: Application
    Filed: April 25, 2008
    Publication date: September 18, 2008
    Applicants: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation - S.N.E.C.M.A, Hexcel Reinforcements
    Inventors: Bruno Bompard, Pierre Olry, Renaud Duval, Alain Bruyere, Dominique Coupe, Jean Aucagne
  • Publication number: 20070023139
    Abstract: 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: Application
    Filed: July 28, 2006
    Publication date: February 1, 2007
    Inventors: Alain Bruyere, Jean Thiel
  • Publication number: 20070026215
    Abstract: 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: Application
    Filed: July 28, 2006
    Publication date: February 1, 2007
    Inventors: Alain Bruyere, Jean Thiel
  • Patent number: 7115180
    Abstract: 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: Grant
    Filed: April 7, 2004
    Date of Patent: October 3, 2006
    Assignee: Hexcel Reinforcements
    Inventor: Alain Bruyère
  • Publication number: 20050205213
    Abstract: 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: Application
    Filed: April 22, 2005
    Publication date: September 22, 2005
    Inventors: Bruno Bompard, Pierre Olry, Renaud Duval, Alain Bruyere, Dominique Coupe, Jean Aucagne