Patents by Inventor Benjamin Provost
Benjamin Provost 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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Publication number: 20240083121Abstract: A machine for automatically draping and compacting including a draping head that grasps, deposits and compacts fiber plies on a draping support, the draping head including first and second rigid supports and a gripper including a piece of elastically deformable material having a face to grasp a ply and intended to bear against a draping support surface. The first and second supports are connected to, respectively, a robotic handling device and to the first support and to the gripper. The draping head includes bearing force or pressure measuring elements between the first and second supports or housed in the first support. A control unit is connected to the bearing force or pressure measuring elements to monitor a compaction bearing force or pressure applied by the draping head.Type: ApplicationFiled: October 7, 2020Publication date: March 14, 2024Inventors: Clément ROLLAND, Benjamin PROVOST, Maxime LEBEGUE, Renaud VENTURE
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Patent number: 11472133Abstract: A method for manufacturing a fibrous tubular structure including lobes, in which fibers are draped/deposited on a mandrel having a shape corresponding to that of the fibrous structure, includes draping/deposition carried out such that at least one group of fibers has a same orientation with respect to the axis (A) of said fibrous structure, then, the fibers having been draped over an angular sector less than the total periphery of the mandrel, one of the ends of the fibrous structure is separated from the mandrel in order to allow the continuation of the draping on the same mandrel.Type: GrantFiled: February 10, 2020Date of Patent: October 18, 2022Assignee: Safran NacellesInventors: Bertrand Desjoyeaux, Davi Silva De Vasconcellos, Benjamin Provost
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Patent number: 11473225Abstract: A method of manufacturing a preform including a core and a sole includes contour weaving the preform on a lap roller having a groove or an outgrowth allowing shape weaving of the core and the sole of the preform. At least one portion of the core and at least one portion of the sole include weft yarns which cross each other on common warp yarns.Type: GrantFiled: December 7, 2018Date of Patent: October 18, 2022Assignee: Safran NacellesInventors: Julien Lorrillard, Bertrand Desjoyeaux, Michel Rognant, Benjamin Provost
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Patent number: 11235492Abstract: A tubular structure having lobes is produced as a single piece over at least two lobes. Circumferential fibres of the structure have a constant orientation with respect to the longitudinal axis (A) of the structure in any plane (P) transverse to the longitudinal axis. The structure is obtained by weaving or by filament winding.Type: GrantFiled: November 25, 2019Date of Patent: February 1, 2022Assignee: Safran NacellesInventors: Bertrand Desjoyeaux, Benjamin Provost, Fabien Depeux, Davi Silva De Vasconcellos
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Publication number: 20210179256Abstract: A method for manufacturing a preform for producing a part made of composite material with an unchangeable final shape includes supplying a triaxial non-woven textile comprising a layer of fibers orientated in a first direction, a layer of fibers orientated in a second direction, a layer of fibers orientated in a third direction, and seams extending parallel to each other and forming sheaths for the circumferential fibers, arranging the textile on an element of unchangeable shape by placing the seams parallel to the circumferential direction of the element, and sliding the circumferential fibers into the sheaths so that the textile is in continuous contact with the element.Type: ApplicationFiled: March 1, 2021Publication date: June 17, 2021Applicant: Safran NacellesInventors: Bertrand Leon Marie DESJOYEAUX, Julien LORRILLARD, Benjamin PROVOST
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Patent number: 10913181Abstract: A method for manufacturing a preform has a non-developable end shape having, about a longitudinal axis (A), an end overall radius of curvature (R2), and, in at least a longitudinal section, curved segments forming bending radii linking straight segments. The method includes a step of depositing successive layers giving the preform an initial substantially rotational shape having, about the longitudinal axis (A), an initial overall radius of curvature, then a step of deploying the preform by increasing the initial overall radius of curvature until the end overall radius of curvature is reached (R2), in order to close the bending radii of the curved segments.Type: GrantFiled: February 18, 2020Date of Patent: February 9, 2021Assignee: Safran NacellesInventors: Benjamin Provost, Bertrand Desjoyeaux, Sébastien Louchard, Fabien Depeux
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Patent number: 10767288Abstract: The present disclosure concerns a preform for a curved composite stiffener for an axisymmetric part such as a shroud, including at least one web and at least one flange curved about an axis of revolution of the preform and defining a substantially “T” or an “I” shaped section. In one form, the preform includes a web and a flange, wherein the web includes a plurality of warp yarns circumferentially oriented relative to the axis of revolution of the preform, and a plurality of weft yarns oriented radially relative to said axis, and the flange includes a plurality of warp yarns circumferentially oriented relative to the axis of revolution of the preform, and a plurality of weft yarns substantially parallel to said axis.Type: GrantFiled: March 9, 2017Date of Patent: September 8, 2020Assignee: Safran NacellesInventors: Benjamin Provost, Julien Lorrillard, Bertrand Desjoyeaux, Michel Rognant
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Patent number: 10746046Abstract: The present disclosure provides a method for manufacturing a preform made of reinforcement fibers woven in a longitudinal direction. The preform is impregnated with resin in order to form an elongated element having a variable transverse cross-section. In one form, the method includes the step of simultaneously including a reduction (or increase) in width and an increase (or reduction) in height. The variable cross-section includes, along the length thereof, a consistent number (c) of continuous warp threads arranged in layers. The method for reducing width includes carrying out a change in weave, adding additional weft threads, and simultaneously drawing the teeth of the longitudinal beater reed closer together so as to increase the number of layers.Type: GrantFiled: August 9, 2017Date of Patent: August 18, 2020Assignee: SAFRAN NACELLESInventors: Benjamin Provost, Bertrand Desjoyeaux, Sébastien Louchard, Arnaud Marical
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Publication number: 20200180238Abstract: A method for manufacturing a fibrous tubular structure including lobes, in which fibers are draped/deposited on a mandrel having a shape corresponding to that of the fibrous structure, includes draping/deposition carried out such that at least one group of fibers has a same orientation with respect to the axis (A) of said fibrous structure, then, the fibers having been draped over an angular sector less than the total periphery of the mandrel, one of the ends of the fibrous structure is separated from the mandrel in order to allow the continuation of the draping on the same mandrel.Type: ApplicationFiled: February 10, 2020Publication date: June 11, 2020Applicant: Safran NacellesInventors: Bertrand DESJOYEAUX, Davi SILVA DE VASCONCELLOS, Benjamin PROVOST
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Publication number: 20200180188Abstract: A method for manufacturing a preform has a non-developable end shape having, about a longitudinal axis (A), an end overall radius of curvature (R2), and, in at least a longitudinal section, curved segments forming bending radii linking straight segments. The method includes a step of depositing successive layers giving the preform an initial substantially rotational shape having, about the longitudinal axis (A), an initial overall radius of curvature, then a step of deploying the preform by increasing the initial overall radius of curvature until the end overall radius of curvature is reached (R2), in order to close the bending radii of the curved segments.Type: ApplicationFiled: February 18, 2020Publication date: June 11, 2020Applicant: SAFRAN NACELLESInventors: Benjamin PROVOST, Bertrand DESJOYEAUX, Sébastien LOUCHARD, Fabien DEPEUX
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Patent number: 10655250Abstract: The disclosure relates to a shape-woven preform which has an omega-shaped cross-section including a core and a sole. At least one part of the core and at least one part of the sole have weft yarns in common with one another.Type: GrantFiled: September 12, 2016Date of Patent: May 19, 2020Assignee: AircelleInventors: Julien Lorrillard, Bertrand Desjoyeaux, Michel Rognant, Benjamin Provost
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Patent number: 10654194Abstract: A method for manufacturing a preform has a non-developable end shape having, about a longitudinal axis (A), an end overall radius of curvature (R2), and, in at least a longitudinal section, curved segments forming bending radii linking straight segments. The method includes a step of depositing successive layers giving the preform an initial substantially rotational shape having, about the longitudinal axis (A), an initial overall radius of curvature, then a step of deploying the preform by increasing the initial overall radius of curvature until the end overall radius of curvature is reached (R2), in order to close the bending radii of the curved segments.Type: GrantFiled: January 4, 2019Date of Patent: May 19, 2020Assignee: Safran NacellesInventors: Benjamin Provost, Bertrand Desjoyeaux, Sébastien Louchard, Fabien Depeux
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Publication number: 20200095954Abstract: A tubular structure having lobes is produced as a single piece over at least two lobes. Circumferential fibres of the structure have a constant orientation with respect to the longitudinal axis (A) of the structure in any plane (P) transverse to the longitudinal axis. The structure is obtained by weaving or by filament winding.Type: ApplicationFiled: November 25, 2019Publication date: March 26, 2020Applicant: Safran NacellesInventors: Bertrand DESJOYEAUX, Benjamin PROVOST, Fabien DEPEUX, Davi SILVA DE VASCONCELLOS
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Patent number: 10479049Abstract: The present disclosure relates to a part made from composite material that includes a base and a T-shaped reinforcement. The T-shaped reinforcement includes a first L-shaped element having a first right-angled connection portion and a second L-shaped element having a second right-angled connection portion. The part further includes a plurality of needles, each connecting the base to the T-shaped reinforcement of the part, close to the connection portions and extending in multiple directions so as to oppose, in particular, the separation of the base from the T-shaped reinforcement.Type: GrantFiled: May 9, 2018Date of Patent: November 19, 2019Assignee: Safran NacellesInventors: Arnaud Delehouze, Etienne Germain, Sébastien Louchard, Benjamin Provost
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Publication number: 20190168419Abstract: A method for manufacturing a preform has a non-developable end shape having, about a longitudinal axis (A), an end overall radius of curvature (R2), and, in at least a longitudinal section, curved segments forming bending radii linking straight segments. The method includes a step of depositing successive layers giving the preform an initial substantially rotational shape having, about the longitudinal axis (A), an initial overall radius of curvature, then a step of deploying the preform by increasing the initial overall radius of curvature until the end overall radius of curvature is reached (R2), in order to close the bending radii of the curved segments.Type: ApplicationFiled: January 4, 2019Publication date: June 6, 2019Applicant: SAFRAN NACELLESInventors: Benjamin PROVOST, Bertrand DESJOYEAUX, Sébastien LOUCHARD, Fabien DEPEUX
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Publication number: 20190106817Abstract: The disclosure relates to a method of manufacturing a preform including a core and a sole. The method includes contour weaving the preform on a lap roller having a groove or an outgrowth allowing shape weaving of the core and the sole of the preform. At least one portion of the core and at least one portion of the sole include weft yarns which cross each other on common warp yarns.Type: ApplicationFiled: December 7, 2018Publication date: April 11, 2019Applicant: Safran NacellesInventors: Julien LORRILLARD, Bertrand DESJOYEAUX, Michel ROGNANT, Benjamin PROVOST
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Publication number: 20190039265Abstract: The present disclosure relates to a preform that includes layers of textile reinforcements that are arranged in a mold by an automatic placement head and are connected to each other, and which can be dry or pre-impregnated, in order to form a part made of composite materials after curing of an impregnating resin. The part includes a folding produced by conformation of the preform after the placement of the layers of textile reinforcements. At the folding, there are spacings between at least some of the layers of textile reinforcements.Type: ApplicationFiled: October 9, 2018Publication date: February 7, 2019Applicant: Safran NacellesInventors: Bertrand DESJOYEAUX, Benjamin PROVOST, Sébastien LOUCHARD, Fabien DEPEUX
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Publication number: 20180257338Abstract: The present disclosure relates to a part made from composite material that includes a base and a T-shaped reinforcement. The T-shaped reinforcement includes a first L-shaped element having a first right-angled connection portion and a second L-shaped element having a second right-angled connection portion. The part further includes a plurality of needles, each connecting the base to the T-shaped reinforcement of the part, close to the connection portions and extending in multiple directions so as to oppose, in particular, the separation of the base from the T-shaped reinforcement.Type: ApplicationFiled: May 9, 2018Publication date: September 13, 2018Applicant: Safran NacellesInventors: Arnaud DELEHOUZE, Etienne GERMAIN, Sébastien LOUCHARD, Benjamin PROVOST
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Publication number: 20170370247Abstract: The present disclosure provides a method for manufacturing a preform made of reinforcement fibers woven in a longitudinal direction. The preform is impregnated with resin in order to form an elongated element having a variable transverse cross-section. In one form, the method includes the step of simultaneously including a reduction (or increase) in width and an increase (or reduction) in height. The variable cross-section includes, along the length thereof, a consistent number (c) of continuous warp threads arranged in layers. The method for reducing width includes carrying out a change in weave, adding additional weft threads, and simultaneously drawing the teeth of the longitudinal beater reed closer together so as to increase the number of layers.Type: ApplicationFiled: August 9, 2017Publication date: December 28, 2017Applicant: Safran NacellesInventors: Benjamin PROVOST, Bertrand DESJOYEAUX, Sébastien LOUCHARD, Arnaud MARICAL
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Publication number: 20170175308Abstract: The present disclosure concerns a preform for a curved composite stiffener for an axisymmetric part such as a shroud, including at least one web and at least one flange curved about an axis of revolution of the preform and defining a substantially “T” or an “I” shaped section. In one form, the preform includes a web and a flange, wherein the web includes a plurality of warp yarns circumferentially oriented relative to the axis of revolution of the preform, and a plurality of weft yarns oriented radially relative to said axis, and the flange includes a plurality of warp yarns circumferentially oriented relative to the axis of revolution of the preform, and a plurality of weft yarns substantially parallel to said axis.Type: ApplicationFiled: March 9, 2017Publication date: June 22, 2017Applicant: SAFRAN NACELLESInventors: Benjamin PROVOST, Julien LORRILLARD, Bertrand DESJOYEAUX, Michel ROGNANT