Patent application number | Description | Published |
20090246531 | PROCESS FOR THE PRODUCTION OF A STIFFENER THAT IS SCOOPED OUT IN THE SHAPE OF AN OMEGA AND CORE FOR THE PRODUCTION OF A STIFFENER THAT IS SCOOPED OUT IN THE SHAPE OF AN OMEGA - A process for obtaining a core for the production of a stiffener ( | 10-01-2009 |
20100269948 | THREE-DIMENSIONAL SURFACE WEAVING - A weaving method that makes it possible to directly produce three-dimensional structures having two-dimensional walls with corners, without requiring sewing or other joining between two edges. The weave is created by turning weft threads ( | 10-28-2010 |
20100319801 | SYSTEM FOR WEAVING A CONTINUOUS ANGLE - A weaving loom including a mechanism drawing-in threads, for insertion of picks, and for formation of a weaving shed, so as to render possible formation of a continuous angle or corner by a thread during weaving. The loom preferably also includes a vertical offset system, so that it is possible to weave a three-dimensional surfacic structure, the threads of which are continuous between the faces and at the level of the edges. The loom can be configured particularly for manufacture of continuous tridedral corners that are used as reinforcements for composite structures. | 12-23-2010 |
20110143085 | ASSEMBLY OF FIBROUS ELEMENTS FOR OBTAINING A PART MADE OF A COMPOSITE - A fiber structure that can be embedded in a matrix for obtaining a piece made of composite material, includes a first fiber element having a first support surface, at least one L-shaped fiber element having a base that is flattened against the support surface of the first fiber element at a junction zone and a wing that is not flattened against the first fiber element, and another fiber element having one part flattened against the wing of the at least one L-shaped fiber element. The elements are assembled by tapping fibers from a second surface of the first fiber element so as to form loops, at least certain fibers being oblique relative to the second surface, in a plane that is perpendicular to the junction zone, wherein certain loops of the oblique fibers protrude to the outside of the outer surface of a wing of at least one L-shaped fiber element. | 06-16-2011 |
20110180960 | METHOD FOR PRODUCING A COMPONENT MADE OF A COMPOSITE MATERIAL AND ASSOCIATED DEVICE - A process for manufacturing a piece made of composite material including a fiber preform that is embedded in a matrix, includes placing the preform in a first chamber that is delimited by a first semi-sealed wall, i.e., permeable to gas and impermeable to a product that is able to form the matrix, extracting the gases in a second chamber that is delimited by a second gas-tight wall and the first semi-sealed wall so as to obtain the diffusion of the product that is able to form the matrix in the preform, characterized in that it consists in using—as a first semi-sealed wall—at least one plate with a number of pipes of tapered shape that empty on either side of the at least one plate and at least one semi-sealed membrane that is superposed on the at least one plate. | 07-28-2011 |
20110272852 | METHOD FOR PRODUCING A CONCAVE-SHAPED IN PARTICULAR U-SHAPED PIECE IN A COMPOSITE MATERIAL AND DEVICE FOR CARRYING OUT THE SAME - A process for manufacturing a piece made of composite material with a hollow form and including a fiber preform ( | 11-10-2011 |
20120126060 | METHOD OF FABRICATING AN AIRCRAFT PART BY INFUSING RESIN - The method of fabricating an aircraft part comprises the steps of placing in a stack comprising a preform at least one layer of a material that presents permeability to a predetermined resin that is less than the permeability of a portion of the preform that is the closest to the layer; and placing a resin presence sensor on a side of the layer that is remote from the preform. | 05-24-2012 |
20120171321 | INJECTION INTERFACE DEVICE - The invention relates to an interface device ( | 07-05-2012 |
20120237736 | PROCESS FOR THE PRODUCTION OF A PROFILE MADE OF COMPOSITE MATERIAL FIBERS THAT HAS A HALF-NAIL-HEAD OR NAIL-HEAD CROSS-SECTION - A process for the production of a fiber profile ( | 09-20-2012 |
20120261069 | AUTOMATED DRAPE-FORMING DEVICE - The invention relates to an automated device for implementing a drape-forming step to form a laminated fibrous preform, which is then impregnated with resin to produce a part made of composite material. The invention relates more particularly to the production of preforms for manufacturing parts such as panels, in particular very thick panels, that extend basically in two dimensions. The device of the invention comprises a manipulator ( | 10-18-2012 |
20120289109 | Method For Manufacturing A Part Of A Composite Material And Part Thus Obtained - The manufacturing method includes a step of resin transfer moulding, wherein resin is injected (E) in a preform ( | 11-15-2012 |
20120328846 | METHOD AND DEVICE FOR THE AUTOMATED PRODUCTION OF DRY FIBROUS PREFORMS - The invention relates to a device and a method for the realization of elongated textile preforms intended for manufacturing load-bearing composite members by means of a method using resin infusion. | 12-27-2012 |
20130108837 | METHOD OF MANUFACTURING A STRUCTURE COMPRISING A SKIN AND STIFFENERS | 05-02-2013 |
20130180642 | Self-stiffened composite panel and process for making same - The invention provides a self-stiffened composite panel including an external skin, an internal skin superposed on the external skin, which covers an internal face of the external skin and at least one stiffener protruding inwards relatively to the internal skin which extends along a longitudinal direction, characterised in that the stiffener is made as one piece with the internal skin and consists of a portion of the internal skin which is located at distance from the external skin. The invention also provides a process for making such a self-stiffened panel. | 07-18-2013 |
20130206324 | Method for producing a central wing box - A method for producing a central wing box having an upper panel, a lower panel, a front spar and a rear spar, the upper edges of said spars approximately parallel to an axis Y being connected by the upper panel, and the lower edges of said spars approximately parallel to the axis Y being connected by the lower panel. The method includes producing at least one panel and at least one spar from composite material in one piece. | 08-15-2013 |
20130216771 | METHOD AND DEVICE FOR STIFFENER PROTECTION, AND CORRESPONDING COMPOSITE PANEL - A composite panel with protected parallel stiffeners has a multiply front face coming to an edge and extending between two lateral flanks of outside plies, symmetrically relative to a median plane (Pm). A device for protecting each stiffener includes a structural section that caps the stiffener symmetrically relative to this median plane (Pm). This structural section includes a so-called upper section formed above the edge and configured to envelop a space above the edge, a so-called lower section framing the lateral flanks by means of longitudinal walls (Pi) fastened to these flanks, and an intermediate section bearing at least partially on the edge via transverse walls (Pb) so as to minimize the propagation of impact forces to the lower section. | 08-22-2013 |
20130263966 | THREE-DIMENSIONAL SURFACE WEAVING - A weaving process for direct manufacture of three-dimensional structures with bidimensional walls with corners, without the need for sewing or other assembly between two ridges. The weaving is made by transforming weft threads into warp threads for making at least one face. The process is particularly adapted for the weaving of reinforcing elements for composite structures of corner fitting type. | 10-10-2013 |
20130285283 | MOLD ADAPTED TO RECEIVE A PREFORM OF A COMPOSITE PART AND CORRESPONDING MOLDING METHOD - A mould including: a central core having a side wall with a plane external surface; an internal mould element having an internal surface facing the external surface of the central core, with surfaces inclined to the vertical in order to form an angle of clearance, and a substantially vertical external surface; an external mould element fitted against the internal mould element and having a substantially vertical internal surface facing the external surface of the internal mould element; at least one of the facing surfaces being designed to receive a substantially vertical lateral preform so that the internal mould element and the external mould element are suitable for clamping said lateral preform. | 10-31-2013 |
20140027957 | DEVICE FOR MANUFACTURING A COMPOSITE PART INCLUDING A BELL AND ASSOCIATED METHOD - The main purpose of the invention is a device for manufacturing a composite part, comprising a mould, designed to be associated with a reinforcement of the composite part comprising a preform, into which the resin forming the matrix of the composite part will be injected, possibly a support element on which the mould is supported, a preform vacuum creation membrane supported on the mould and/or the support element, if there is one; characterised in that it also comprises a vacuum chamber covering the vacuum creation membrane, the vacuum chamber comprising a flexible wall designed to apply a mechanical pressure to the vacuum creation membrane. | 01-30-2014 |
20140216635 | METHOD FOR ASSEMBLING ELEMENTS OF COMPOSITE MATERIAL FOR AIRCRAFTS, WITH STRESS RELAXATION IN THE ELEMENTS - The invention relates to a method of assembling composite material parts ( | 08-07-2014 |
20140251529 | Method for producing an extruded stiffened panel, and device for implementing same - A method for producing a part made of a composite material, including a skin and at least one stiffener made of strips, which are in turn made of one or more plies of fibers impregnated with a non-polymerized resin. The method includes the steps of: producing a preform of the part by pulling the strips through a die for shaping and positioning the skin and the stiffeners, a polymerization core being provided between a first strip and a second strip prior to the passage thereof through the die; and pressing the resulting preform in a hot press for a duration dt while applying a pressure P and at a temperature T for polymerizing the resin of the strips in the hot press over a pressing length L that is shorter than the length of the panel. | 09-11-2014 |
20140302236 | Fibre Fabric Cutting System and Method - Fibre fabric cutting system and method with a first and a second conveyor belt guided along a first and second curved path, respectively. A fibre fabric supply unit supplies a web of fibre fabric to a cutting section of the first curved path. A cutting unit cuts the web of fibre fabric into sheets. The first curved path and the second curved path cooperate to define for the sheets a first transport path including a plurality of vertically spaced levels extending transversally to the vertical direction and arranged one above the other. The cutting section defines the first level and each of the subsequent levels is defined by a section of one of the conveyor belts. Sheets transported along the first transport path move from one level to the next level and are alternately supported against the gravitational force by the first and the second conveyor belt on consecutive levels. | 10-09-2014 |
20140377491 | Method for manufacturing a plurality of preforms for reinforcing members - A method of manufacturing a plurality of reinforcing element preforms, involving the steps of: positioning reinforcing elements on the external surface of a die; assembling the reinforcing elements thus positioned with one another so as to form a textile sleeve with a longitudinal axis and surrounding the die; moving the sleeve longitudinally toward a multi-cavity mandrel having an elongate overall shape, the multi-cavity mandrel having on its external surface a plurality of longitudinal cavities which are distributed, when viewed in cross section, around the periphery of the external surface; forming the sleeve on the plurality of peripheral cavities so that the sleeve conforms to the shape of the multi-cavity mandrel and thus adopts the shape of a set of reinforcing element preforms. | 12-25-2014 |