EP3768437A1 - Dispositif pour l'application d'un produit d'étanchéité sur le chant d'une pièce en matériau composite - Google Patents
Dispositif pour l'application d'un produit d'étanchéité sur le chant d'une pièce en matériau compositeInfo
- Publication number
- EP3768437A1 EP3768437A1 EP19709993.0A EP19709993A EP3768437A1 EP 3768437 A1 EP3768437 A1 EP 3768437A1 EP 19709993 A EP19709993 A EP 19709993A EP 3768437 A1 EP3768437 A1 EP 3768437A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sleeve
- tool
- application
- product
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 title abstract description 4
- 239000006260 foam Substances 0.000 claims abstract description 28
- 229920000098 polyolefin Polymers 0.000 claims abstract description 5
- 239000000565 sealant Substances 0.000 claims description 15
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 9
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 9
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 238000000151 deposition Methods 0.000 abstract description 3
- 229920005989 resin Polymers 0.000 description 8
- 239000011347 resin Substances 0.000 description 8
- 239000011324 bead Substances 0.000 description 6
- 239000000835 fiber Substances 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 5
- 238000005553 drilling Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000003801 milling Methods 0.000 description 4
- 238000007790 scraping Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000007688 edging Methods 0.000 description 3
- 238000010292 electrical insulation Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000006748 scratching Methods 0.000 description 3
- 230000002393 scratching effect Effects 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000012636 effector Substances 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002572 peristaltic effect Effects 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 206010000372 Accident at work Diseases 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/02—Rollers ; Hand tools comprising coating rollers or coating endless belts
- B05C17/022—Rollers ; Hand tools comprising coating rollers or coating endless belts comprising means for angularly adjusting or allowing angular movement of the roller relative to its handle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/006—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to the edges of essentially flat articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/02—Rollers ; Hand tools comprising coating rollers or coating endless belts
- B05C17/021—Rollers ; Hand tools comprising coating rollers or coating endless belts comprising means to avoid excessive crushing of the roller cover, e.g. a spacer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/02—Rollers ; Hand tools comprising coating rollers or coating endless belts
- B05C17/03—Rollers ; Hand tools comprising coating rollers or coating endless belts with feed system for supplying material from an external source or with a reservoir or container for liquid or other fluent material located in or on the hand tool outside the coating roller
- B05C17/0308—Rollers ; Hand tools comprising coating rollers or coating endless belts with feed system for supplying material from an external source or with a reservoir or container for liquid or other fluent material located in or on the hand tool outside the coating roller the liquid being supplied to the inside of the coating roller
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C7/00—Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work
- B05C7/06—Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work by devices moving in contact with the work
Definitions
- the invention relates to a device for applying a product to the edge of a piece of composite material with fibrous reinforcement.
- Parts made of a composite material reinforced with electrically conductive or semiconducting fibers when assembled within a structure with other materials, cause metals such as aluminum alloys or steels, risks of triggering galvanic corrosion phenomena, when an electrical contact exists between said fibers and said metallic materials. If on the surface of the composite parts, the fibers are electrically insulated from the outside, because embedded in the resin constituting the matrix, it is not the same for all the songs of the room, or surfaces having undergone such machining than trimming or drilling. On these surfaces, the ends of the fibers are exposed and likely to come into electrical contact with other parts during assembly. This is the case for example of a metal rivet inserted in a hole made in the composite part.
- edge sealing English edge sealing
- This operation involves depositing on the live edges of the parts in question, for example by means of a brush, a layer of electrically insulating material, most generally but not exclusively an epoxy resin. This operation is generally performed manually, it being difficult to automate.
- Figure 1 relating to the prior art, shows the appearance of the edge of a workpiece (100), after performing a brush edging operation.
- the resin layer (110) covers the edge of the part well, thus ensuring electrical insulation of the ends of the reinforcing fibers.
- the resin layer thus deposited must reach at all points a minimum thickness, generally greater than 0.2 mm, but must remain within a maximum thickness, of the order of 0.5 mm, so as not to hinder the assembly of the part and also, in the case of aeronautical applications, to limit the mass added.
- the document US Pat. No. 4,951,849 describes a device, adaptable to an automatic drilling or riveting unit, for applying sealant to the edges of a countersink that receives the head of a rivet, more particularly to avoid galvanic couplings. between said rivet and the parts thus assembled.
- the applicator consists of a rigid conical application head, in the form of milling, used coaxial with the drilling axis, which comprises a plurality of radial orifices through which the sealant is dispensed under pressure by means of a peristaltic pump.
- Document US 2014/0263480 discloses a device for applying a sealant to the edges of a countersunk hole, comprising a cylindrical applicator provided with means for connecting it to a cartridge containing putty.
- the applicator comprises at its end a rigid cylindrical application head comprising radial orifices through which the sealant is delivered.
- the head is introduced into the bore, the sealant is injected into the orifices, and to ensure uniform distribution of the sealant, the operator rotates a portion of a turn of the head in the bore.
- this device is not suitable for treating the outer edges of a room.
- the aim of the invention is to solve the disadvantages of the prior art and for this purpose concerns a tool adapted to the manual or automatic application of a polymerizable sealant to the edge of a composite part, which tool comprises:
- a gripping portion fixed, defining an axis of orientation of the gripping
- vs. characterized in that it comprises a cylindrical applicator pad consisting of a sleeve of tubular foam threaded on the rod, consisting of a polyolefin foam comprising cells open on the surfaces of the sleeve, able to absorb a product and to the deposit on a surface by contact with said surface.
- the product is deposited on the edge of the piece by rolling the pad previously impregnated with the product on said edge, but unlike a painter's roll, where the axis of rotation of the application pad with respect to the gripping portion is perpendicular to the orientation of the gripping, the parallel arrangement of this axis of rotation allows precise control of the application of the product, including the application pressure, keeping the tool as close to the application area, whether the application is done manually or using a robot, thus avoiding the formation of a bead.
- the diameter of the pad is adapted to the thickness of the edge and the intended application, allowing in particular to apply the product in areas of small radius. However, the same applicator pad diameter is usable for a wide variety of contours.
- the sleeve consists of a closed-cell polyolefin foam, the cells at the surface thereof being open due to the cutting process of the muff. This embodiment avoids the formation of air bubbles in the product applied during its setting by contact and its application on the edges of the treated part.
- the sleeve consists of an open cell foam
- the rod comprises an orifice for injecting the product applied into the sleeve of foam.
- the rod is made of polytetrafluoroethylene (PTFE) and its outside diameter is greater than the inside diameter of the tubular sleeve.
- PTFE polytetrafluoroethylene
- the low coefficient of friction of this material facilitates the installation and replacement of the sleeve, especially when the applied product begins to polymerize or is polymerized.
- the tensioning of the foam sleeve when it is threaded on the rod ensures its maintenance on the latter, and promotes the setting and the transfer of the applied product, in particular by opening the cells of the foam, on the surface or in any its thickness according to the embodiment.
- the rod has a protrusion shape for the axial positioning of the sleeve on said rod.
- the gripping portion is adapted to a grip, the application portion being coaxial with the gripping portion.
- FIG. 1 relating to the prior art represents, in a partial sectional view, an example of the result of the edging treatment of the edge of a piece of composite material by means of the tools of the prior art;
- FIG. 2 shows an embodiment of a tool object of the invention in a longitudinal sectional view
- FIG. 3 shows in a front view another embodiment of the tool object of the invention.
- FIG. 4 is a partial sectional view AA defined in Figure 3, an exemplary embodiment of the application portion;
- FIG. 5 represents, in a front view, an example of the use of the tool which is the subject of the invention in stationary position.
- the tool (200) object of the invention comprises a gripping portion, comprising a handle (210) defining a gripping axis (201) .
- said handle is made of an aluminum alloy tube.
- An axis (220) is guided in pivot connection in said handle (210), for example by means of PTFE bushings (212) crimped into the internal passage of the handle at each of its ends.
- a rod (230), for example made of PTFE, is centered at the end of the axis (220) and fixed to that, for example, by means of an elastic pin (232) passing through said rod (230) and the axis (220), so that the rod is also in pivot connection, and free in rotation relative to the handle (210).
- the gripping portion is, according to embodiments adapted to a grip in the case of a tool adapted to a manual application.
- the diameter of the tubular portion (210) is between 8 mm and 20 mm without these values being limiting, so that said handle is taken in hand in the manner of a pen.
- the outer form of the tubular portion is not of circular section, but of elliptical, polygonal or other section, for better ergonomics of grip.
- the gripping of this gripping portion is, according to one embodiment using an automated edge of the workpiece, performed by a robot by means of a clamp or other effector ensuring such a gripping.
- it can be fixed by fixing means to a fixed part of the robot, retaining the pivot connection of the shaft (220) and the rod (230) relative to this gripping portion.
- the rod and the sleeve are in pivot connection axis parallel to the cylindrical axis of the sleeve relative to the gripping portion.
- the axis of the pivot connection of the rod relative to the handle is coaxial with the gripping axis (201).
- the rod (230) terminates in a protrusion form (235), according to this embodiment, by a doubly chamfered shoulder to allow easy installation and removal of a sleeve on the rod.
- a tubular foam sleeve (240) is threaded onto said shaft (230) and is stopped and axially positioned thereon against the protrusion form (235).
- the rod (230) and buffer (240) assembly constitutes the application portion (250) of the tool that is the subject of the invention.
- the inner diameter of the foam sleeve (240) when it is not installed on the rod (230) is less than the outer diameter of said rod, so that once threaded, the sleeve is in tension and firmly maintained on the stem.
- the inside diameter of the tubular sleeve in the free state is 5 mm while the outer diameter of the rod (230) is 8 mm.
- the sleeve is, according to this embodiment, constituted of a closed cell foam.
- the method of cutting the sleeve reveals open cells (241) on its surface.
- the foam used for the sleeve is a polyolefin foam with a density of 29 kg / m 3 closed cell, with a cell average diameter of 0.65 mm.
- the foam sleeve is a product application buffer to be applied to the edge of the piece (100).
- Said product is intended to seal the edge of the part and in the case where the reinforcement used in the composite part is electrically conductive, for example carbon fibers, to ensure the electrical insulation of the end said fibers.
- the applied product is a polymerizable product, generally a bicomponent product such as an epoxy resin or sealant.
- a polymerizable product generally a bicomponent product such as an epoxy resin or sealant.
- Such products generally have a high viscosity which is further progressive as the polymerization of the product during its open time of application.
- said buffer is first loaded in product by contact, by rolling the sleeve, mounted on the tool, on a coated surface of the product to be applied, at the way of a painter's roll.
- the sleeve is loaded with the two components previously mixed.
- the product enters the open pores (241) at the surface of the sleeve, by capillarity, without creating air bubbles. Once the sleeve coated, the product is deposited on the edge of the workpiece (100) to be treated by rolling the sleeve on said edge under a slight pressure.
- the product is thus uniformly deposited on the edge of the piece without creating an air bubble and without creating a bead.
- the coaxial positioning of the axis of rotation of the sleeve and the axis of orientation of the grip provides a fine control of the pressure exerted during the application of the product and the path followed with the tool.
- the nature of the foam constituting the sleeve is adapted according to the nature of the product applied.
- the example of foam described above is more particularly suitable for the deposition of a two-component product comprising a modified epoxy base and an amine catalyst, for a viscosity between 10 Pa.s and 500 Pa.s, with an open time of application of the order of 90 minutes.
- the sleeve is thus changed approximately every hour to allow it to maintain its flexibility.
- the rod (230) is constituted or is coated with a suitable material, such as polytetrafluoroethylene (PTFE), avoiding the bonding of the loaded sleeve of the product applied to said rod and facilitate its replacement.
- a suitable material such as polytetrafluoroethylene (PTFE)
- the latter comprises a gripping part comprising a coupling form (310) with the effector gate of a robot or a machine tool spindle and thereby defining a gripping axis (301).
- the tool (300) which is the subject of the invention comprises two application parts (352, 353) each in pivot connection, free in rotation, with respect to the gripping portion, along axes (302 , 303) parallel to the gripping axis (301).
- Each of the application portions is of similar structure to that of the preceding embodiment (FIG. 2) and comprises a PTFE rod on which is threaded a sleeve of tubular foam (342, 343), acting as a buffer of application.
- the two application parts (352, 353) are of different diameters and make it possible, for example, for one (352) of greater diameter, to treat songs extending over large distances, and for the other (353), of reduced diameter, to treat areas where the edge of the piece follows tight radii of curvature.
- the selection of one or other of the application parts is effected, according to this embodiment, by a 180 ° rotation of the gripping portion around the gripping axis (301).
- the application of the product to the edge to be treated is achieved by rolling one or other of the application portions (351, 352) over the edge to be treated. and under a slight radial pressure.
- this application is performed while the workpiece is fixed in a suitable mounting and that the robot, the manipulator or the machine tool move the tool relative to the workpiece, or, the workpiece is also supported by a robot or a manipulator and the movement of the tool relative to the part is obtained by the combination of the movements of the two robots or manipulators.
- the loading of the product buffer to be applied is, according to an example of embodiment, obtained as in the case of the manual application by rolling the application part (352, 353) on a coated surface of the product to be applied, this operation being performed by the robot or the manipulator.
- the rod (430) supporting the foam sleeve (342) comprises a central channel (431) and radial orifices (432) opening under the foam sleeve (342), and through which is injected the product to be applied at a controlled rate.
- Product injection is performed, for example, by means of a peristaltic pump (not shown) or any other means to prevent the creation of air bubbles in the product during said injection.
- the applied product is a two-component product
- said components have been mixed before injection.
- the sleeve consists of an open cell foam, to allow the flow of the injected product to the outer surface of the sleeve (342, 343).
- the principle of application of the product on the workpiece remains the same.
- the gripping portion (510) of the tool (500) object of the invention is fixed to a fixed position.
- the characteristics of the application portion (550) remain the same, with means for injecting the product to be applied under the foam sleeve as shown in FIG. 4, and a sleeve consisting of an open cell foam.
- the application principle of the product remains the same but is obtained by moving the workpiece, for example by means of a robot, relative to the application portion (550). Alternatively, the workpiece is moved manually facing the tool (500) stationary.
- the above description and the exemplary embodiments show that the invention achieves the intended purpose, and makes it possible to simplify the process of edge-edging the edges of a piece made of a composite material with fiber reinforcement, while improving the quality. .
- the use of the tool object of the invention in its manual version, can significantly reduce the time of the border operation, reducing the application time and eliminating scraping operations.
- use of the tool object of the invention virtually eliminates the need for scratching operations of the bead, thereby also reducing the risk of accident at work during this operation.
- the adaptation of the staff is also very fast and the training time is reduced.
- the programming is simplified and allows to use, for example, the trajectories generated for the routing programs of the milling part, by simply changing the tool offset values.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Coating Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1870303A FR3078903B1 (fr) | 2018-03-17 | 2018-03-17 | Dispositif pour l’application d’un produit sur le chant d’une piece |
PCT/EP2019/056738 WO2019179960A1 (fr) | 2018-03-17 | 2019-03-18 | Dispositif pour l'application d'un produit d'étanchéité sur le chant d'une pièce en matériau composite |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3768437A1 true EP3768437A1 (fr) | 2021-01-27 |
EP3768437B1 EP3768437B1 (fr) | 2024-09-18 |
Family
ID=62952173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19709993.0A Active EP3768437B1 (fr) | 2018-03-17 | 2019-03-18 | Dispositif pour l'application d'un produit d'étanchéité sur le chant d'une pièce en matériau composite |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3768437B1 (fr) |
FR (1) | FR3078903B1 (fr) |
MA (1) | MA52068A (fr) |
WO (1) | WO2019179960A1 (fr) |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB748626A (en) * | 1954-10-14 | 1956-05-09 | Arnold Sydney Leng | Rotary paint applicators |
US3904718A (en) | 1974-09-03 | 1975-09-09 | Boeing Co | Countersink sealant application method |
DE7527409U (de) * | 1975-08-29 | 1976-04-08 | Deutsche Roulor Gmbh, 6680 Neunkirchen | Als farbmalroller ausgebildeter roller zum auftragen von farben |
US4951849A (en) | 1988-09-30 | 1990-08-28 | The Boeing Company | Sealant applicator and method for an automatic fastener machine |
US5105500A (en) * | 1991-01-10 | 1992-04-21 | John Bordogna | Paint roller |
DE4135068A1 (de) * | 1991-10-24 | 1993-05-06 | Mastnak, Wolfgang Richard, 8890 Aichach, De | Halterungsbuegel fuer farbroller aller groessenordnungen mit verstellbarer farbroller - steckachse |
DE29508267U1 (de) * | 1995-05-22 | 1995-08-24 | Fa. Theodor Hymmen, 33613 Bielefeld | Vorrichtung zum Auftragen von Farbe auf eine Profilkante oder auf eine gerade Kantenfläche eines Werkstücks |
US5769769A (en) * | 1996-04-08 | 1998-06-23 | Wagner Spray Tech Corporation | Positionable power paint roller with edger device |
JPH105648A (ja) * | 1996-06-20 | 1998-01-13 | Misawa Homes Co Ltd | 塗布装置 |
US9492838B2 (en) * | 2000-01-24 | 2016-11-15 | Makolle Williams | Pretensioner pivot device |
DE102008027537A1 (de) * | 2008-06-10 | 2009-12-24 | Friess Nespoli Gmbh | Farbwalze für einen Farbroller, Farbroller mit einer solchen Farbwalze sowie Verfahren zur Herstellung einer Schaumstoffwalze für eine solche Farbwalze |
JP2011005363A (ja) * | 2009-06-23 | 2011-01-13 | Honda Motor Co Ltd | 塗布ロール |
US8572796B2 (en) * | 2010-06-21 | 2013-11-05 | Willis Gerald Major | Attachable and detachable painter's tool |
US9038866B2 (en) | 2013-03-12 | 2015-05-26 | Orbital Atk, Inc. | Application tips including a dispensing nozzle with one or more dispensing passages extending along a length thereof and related methods |
CA2810808C (fr) * | 2013-03-27 | 2014-10-28 | Evgueni Denissov | Rouleau a peinture |
WO2016041003A1 (fr) * | 2014-09-15 | 2016-03-24 | Giovanoglou Gregory | Châssis de rouleau à peinture |
-
2018
- 2018-03-17 FR FR1870303A patent/FR3078903B1/fr active Active
-
2019
- 2019-03-18 WO PCT/EP2019/056738 patent/WO2019179960A1/fr unknown
- 2019-03-18 MA MA052068A patent/MA52068A/fr unknown
- 2019-03-18 EP EP19709993.0A patent/EP3768437B1/fr active Active
Also Published As
Publication number | Publication date |
---|---|
WO2019179960A1 (fr) | 2019-09-26 |
MA52068A (fr) | 2021-01-27 |
FR3078903B1 (fr) | 2024-03-08 |
FR3078903A1 (fr) | 2019-09-20 |
EP3768437B1 (fr) | 2024-09-18 |
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