EP3526138B1 - Vorrichtung zur ausgabe eines unter druck stehenden produktes, verfahren und maschine zur montage solch einer vorrichtung - Google Patents

Vorrichtung zur ausgabe eines unter druck stehenden produktes, verfahren und maschine zur montage solch einer vorrichtung Download PDF

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Publication number
EP3526138B1
EP3526138B1 EP17790693.0A EP17790693A EP3526138B1 EP 3526138 B1 EP3526138 B1 EP 3526138B1 EP 17790693 A EP17790693 A EP 17790693A EP 3526138 B1 EP3526138 B1 EP 3526138B1
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EP
European Patent Office
Prior art keywords
neck
dispensing
dispensing device
valve
seat portion
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EP17790693.0A
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English (en)
French (fr)
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EP3526138A1 (de
Inventor
Franck Flecheux
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FLECHEUX, FRANCK
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Individual
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/38—Details of the container body

Definitions

  • the present invention relates to the field of distribution of pressurized products, in particular an aerosol for the distribution of cosmetic, food, medical, pharmaceutical, technical, etc. products.
  • an aerosol comprises a housing and a dispensing valve mounted on the housing.
  • a seal is usually placed at the interface between the housing and the metering valve to prevent leakage.
  • the valve is sealed on the box by a closing process known to a person skilled in the art under the designation of "expansion". Said closing process is known from the prior art, in particular in the standard definition document FEA 219, FEA 215 and FEA 226.
  • a swaging process is complex and allows interaction of the products with the joint, which presents disadvantages, in particular, for the distribution of pharmaceutical and other products.
  • a pressurized product dispensing device 101 comprising a valve 104 equipped with a dispensing member 141 and a cup 140 adapted to be fixed to a hollow body 102.
  • the cup 140 is flexible so as to be mounted prestressed to the hollow body 102 of the dispensing device 101.
  • the cup 140 comprises a radially inner portion in which said dispensing member 141 is fixed and a radially outer portion whose lower face is convex.
  • the invention provides a new type of dispensing device whose closure has significant sealing qualities while being simple and inexpensive to manufacture.
  • the neck comprises a seat portion, inclined inwards, which has a length of between 0.5 mm and 5 mm in a plane in axial section, which cooperates by complementarity of shapes with the underside of the fixing ring so as to form a seat and a locking portion folded over the upper face of the fixing ring so as to block its position.
  • the length of the seat portion is between 0.5 mm and 2 mm so as to save the material of the housing.
  • such a dispensing device is simple to produce since the valve is mounted in a self-centered manner in the storage box in order to be locked in position.
  • the cooperation of a seat portion and a locking portion guarantees an optimal assembly which can be repeated industrially at high speed.
  • the amount of material required to manufacture such a dispensing device is limited compared to the prior art, which makes it possible to reduce the cost of manufacturing and assembly.
  • the dimensions of the seat portion provide optimal support for the valve which can be mechanically stressed during assembly without damage, the mechanical forces being optimally distributed by the seat portion.
  • the dispensing valve has a simple design and does not have a wall that has undergone many deformation steps to obtain, for example, a coping or a seal cavity. Its cost is then limited.
  • the distribution box requires less material compared to the prior art, which is advantageous.
  • the dimensional accuracy of the valve / housing assembly is improved.
  • the expansion method resulted in a deformation of the valve cup creating variations in the dispensing member, which resulted in accidental emptying of the dispensing device or leaks.
  • such an assembly eliminates this problem since, according to the invention, the cup is mounted on the dispensing member in its final position of use. No subsequent mechanical operation affects the vertical position of the dispensing member as could be the case in the prior art.
  • a dispensing device is simple to control since each parameter can be directly measured, which was not the case in the prior art with a rolled edge or a dispensing valve equipped with a coping which are difficult to measure after assembly.
  • the controls can be automated and systematized for each product distribution device. Such checks improve the quality compared to the static checks which were carried out in the prior art.
  • the fixing ring is inclined relative to the axis X of the box towards the inside of the storage box at an angle a between 10 ° and 45 ° in a plane in axial section.
  • the seat portion is inclined relative to the axis X of the housing towards the inside of the storage housing at an angle between 10 ° and 45 °, preferably between 25 ° to 35 °, in a plane in axial section. Such an angle makes it easier to center the valve in the housing automatically, the risk of positioning error is eliminated.
  • the blocking portion is shorter than the seat portion, preferably from 5 to 80%.
  • the blocking portion is simple to deform while retaining a seat portion providing optimal support.
  • a short blocking portion makes it possible to limit the weight and therefore the cost of the storage box.
  • the blocking portion has a length of between 0.2 and 4 mm in a plane in axial section.
  • the locking portion and the seat portion are parallel.
  • the fixing ring is sandwiched to limit any axial or transverse movement.
  • the valve cup is thus pressed against the housing. This is particularly advantageous when the dispensing device comprises a sealing material.
  • the cup is only in contact with the seat portion and the locking portion, which simplifies assembly.
  • the blocking portion forms the upper end of the neck.
  • the upper end of the neck is advantageously simple to deform.
  • the dispensing device comprises a peripheral sealing material mounted between the fixing ring and the seat portion of the neck.
  • a sealing material is compressed during assembly of the valve, which increases the sealing in a practical manner.
  • due to the presence of the seat portion, such a sealing material is simple to position by means of an industrial automaton.
  • the assembly process is shortened and requires fewer forming steps to make the dispensing device.
  • the operations of making the rolled edge, machining and rolling can be advantageously avoided.
  • this eliminates the risk of pollution linked to these machining operations which are liable to generate chips and particles depositing on the inner wall and the outer wall of the housing.
  • the storage case can be formed with greatly reduced or eliminated lubrication, which improves the cleanliness of the case.
  • the invention makes it possible, under certain conditions, to manufacture the storage box industrially without interior varnish, which is a break with the traditional methods which require the application of varnish to allow the operation of forming the rolled edge.
  • the quality of the closure makes it possible to store pressurized products at high pressure, preferably up to 30 or 50 bars.
  • the fixing ring is self-centered in the housing due to the inclination of the seat portion.
  • the storage box is held by its neck during the positioning step. Thanks to the assembly process, the housing is not supported on a support surface, which limits the risk of crushing the housing. In addition, the same assembly method can be used for different package sizes, which is advantageous.
  • Such an assembly machine makes it possible to assemble a dispensing device in a practical manner, regardless of its format since it is held by its neck by said machine.
  • the invention will be presented below for an aerosol for the distribution of a cosmetic product, but it goes without saying that the invention applies to the distribution of any product, in particular a technical, food, medical or pharmaceutical product. .
  • the distribution device 1 comprises a storage box 2 which is closed by a distribution valve 4.
  • the distribution device 1 extends longitudinally along an axis X oriented from bottom to top on the Figures 1 and 2 .
  • the storage box 2 comprises a hollow body 20, an upper mounting opening 21 and a neck 3 connecting said hollow body 20 to said mounting opening 21.
  • the storage box 2 has a shape of revolution around the X axis. Subsequently, the terms “interior” and “exterior” are defined radially with respect to the X axis.
  • the hollow body 20 has an interior surface facing the X axis and an opposite exterior surface. on the inner surface.
  • the storage box 2 is made of aluminum or tin, but it goes without saying that other metallic or plastic materials could be suitable, for example, copper, zinc, glass or plastic materials of the type PE, PP, PET and PEN, pure or mixed.
  • the storage box 2 can include an interior surface varnished according to the applications.
  • the diameter of the upper mounting opening 21 is between 15 mm and 32 mm, preferably between 20 mm and 22 mm.
  • the storage box 2 is formed by a stamping and forming process when it is made from metal.
  • other materials, for example plastic other methods could be implemented, for example, sealing from the top of the valve by deforming the neck of the housing by heating.
  • the dispensing valve 4 comprises a closing wall, hereinafter designated cup 40, through which is fixed a dispensing member 41.
  • the dispensing member 41 extends axially along the axis X while the cup s 'extends transversely to said axis X.
  • the cup 40 has an upper face and a lower face oriented towards the inside of the hollow body 20.
  • the lower face of the cup 40 is convexly curved in order to resist the pressure of the pressurized product which is stored in the hollow body 20
  • the dispensing member 41 of the valve 4 is fixed to a radially inner portion of the cup 40 as illustrated in figure 2 .
  • the dispensing member 41 is preferably in the form of a mechanical actuator of the diffuser type which is connected to a dip tube (not shown) extending from the underside.
  • the cup 40 is preferably made of metal, termo-hard plastic or thermoplastic, and has a constant thickness, preferably of the order of 0.2 to 0.6 mm, but it goes without saying that other materials or other thicknesses may also be suitable.
  • the cup 40 has a peripheral fixing ring 42, forming the outer radial end of the cup 40, which is inclined inwards.
  • the fixing ring 42 forms a conical portion adapted to be placed precisely and effortlessly in the housing 2.
  • an axial cooperation between two conical surfaces allows centering and tightening radial, which improves sealing.
  • the underside of the radially outer portion of the cup is uniformly convex.
  • the fixing crown42 is inclined relative to the axis X by an angle a of between 10 ° and 45 °, preferably between 25 ° and 35 °, so as to rest on the neck 3 stably as will be presented later.
  • the fixing ring 42 cooperates by complementarity of shapes with the neck 3.
  • the upper mounting opening 21 is formed at the upper end of the neck 3.
  • the neck 3 is of annular cross section. Similarly to the hollow body 20, the neck 3 defines a lower face oriented towards the axis X and an outer face opposite the lower face.
  • the neck 3 comprises a peripheral seat portion 5 adapted to support the valve 4 and a blocking peripheral portion 6 in order to block the valve 4. In other words, the neck 3 is crimped onto the valve 4 in order to immobilize it.
  • the peripheral seat portion 5 is inclined and is adapted to cooperate by complementarity of shapes with the underside of the fixing ring 42 so as to form a support seat for the latter.
  • the peripheral blocking portion 6 is folded over the upper face of the fixing ring 42 so as to block its position.
  • the neck 3 is deformed, on the one hand, to optimally support the valve 4 during its positioning and, on the other hand, to block its transverse and / or axial movement.
  • the seat portion 5 is inclined relative to the axis X by an angle between 10 ° and 45 °, preferably between 25 ° and 35 °, so as to form a seat for the cup 40.
  • the seat portion 5 has a length L1 of between 0.2 and 4 mm in order to ensure a compromise between good support quality and reduced dimensions. Such a seat portion 5 makes it possible to optimally distribute the forces when the valve 4 is constrained vertically downwards, in particular during assembly.
  • the blocking portion 6 forms the upper end of the neck 3 and is folded towards the inside of the housing 2 so as to block any movement of the valve 4.
  • the blocking portion 6 is shorter than the seat portion 5, preferably from 5 to 80%.
  • the length L2 of the blocking portion 6 is between 0.2 mm and 4 mm.
  • the seat portion 5 and the locking portion 6 are parallel so as to sandwich the crown of fixing 42 between the seat portion 5 and the blocking portion 6. Any disassembly of the dispensing valve 4 is thus avoided.
  • such a blocking portion 6 makes it possible to withstand very high pressures from 15 bars to more than 50 bars.
  • a deformation of the neck 3 makes it easier to close and optimally control the quality of such a closure.
  • the dimensions can be controlled using a continuous vision system by comparators or thickness compasses.
  • the dispensing device 1 comprises a sealing material 7 disposed between the fixing ring 42 and the seat portion 5 of the neck 3 so as to form a peripheral seal.
  • the sealing material 7 is plastic, latex, rubber or the like and is deposited on the seat portion 5 in the liquid state prior to the installation of the valve 4 as will be presented below. during the presentation of the assembly process. It goes without saying that a peripheral seal positioned in a solid but flexible state could also be suitable.
  • the peripheral sealing material 7 is compressed between the fixing ring 42 and the seat portion 5, which ensures optimum sealing between the valve 40 and the neck 3.
  • the seal obtained has small dimensions, which limits the risks of interaction between the seal and the product located inside the storage box 2. This is particularly advantageous when the pressurized product G is a drug. Thanks to the invention, the quantity of sealing material is limited in comparison with a dispensing device according to the prior art. Consequently, the interactions between pharmaceuticals, drugs, propellant and seal are greatly reduced and reliability is improved.
  • the assembly machine 8 is adapted to assemble the valve 4 on the housing 2 by manipulating the housing 2 by its neck 3.
  • Such manipulation is advantageous since it allows, on the one hand, to limit the mechanical forces applied to the housing 2 compared to a manipulation by force fitting of a valve 4 on a vertical housing 2 whose base is supported on a support .
  • such manipulation allows to overcome the constraint related to the length of the housing 2.
  • the same machine 8 can assemble several different formats of dispensing devices 1, which is very advantageous.
  • the holding member 81 is in the form of a clamp which cooperates by complementary shape with the outer surface of the neck 3.
  • the holding member 81 has a projecting portion which s inserts into a groove formed under the seat portion 5 of the neck 3. It goes without saying that the structure of the holding member 81 could be different, the important thing being to allow stable and precise maintenance of the housing 2 by its neck 3 in order to handle it easily.
  • the plating member 82 has a lower end of a shape complementary to that of the upper surface of the cup 40 of the valve 4.
  • the plating member 82 has a vertical opening 84 at its lower end so to allow the passage of the dispensing member 41 of the valve 4 in the vertical opening 84 during assembly.
  • Such a vertical opening 84 also makes it possible to fill the housing 2 with a propellant fluid through the dispensing member 41 as will be presented below.
  • the plating member 82 makes it possible to bring the fixing ring 42 closer to the seat portion 5. The bringing together is guided by the cooperation of the conical parts.
  • the holding member 81 forms a stop limiting any excessive stress applied by the plating member 82 during the plating.
  • the assembly machine 8 further comprises a deformation member 83 adapted to tilt the upper end of the neck 3 in order to fold it over the valve 4.
  • the stroke of the deformation member 83 is controlled so as to obtain the deformation desired.
  • the holding member 81 and the pressing member 82 form stops which limit the movement of the deformation member 83.
  • the locking portion 6, which forms the upper end of the neck 3, can be folded down in a single deformation step by means of a single assembly machine 8 or folded down in several successive steps by means of several different assembly machines. For example, it is shown in figure 7 several successive positions of the locking portion 6 when the latter is deformed.
  • the storage box 2 and the dispensing valve 4 are manufactured independently before assembly.
  • the blocking portion 6 of the neck 3 Prior to assembly, the blocking portion 6 of the neck 3 extends radially outside relative to the seat portion 5 as illustrated in the figure 7 (diagram a).
  • the product to be dispensed is introduced into the storage box 2 in the liquid state.
  • the holding member 81 grasps the storage box 2 by its neck 3 as illustrated in the figure 4 in order to be able to handle it.
  • a sealing material 7 is deposited on the seat portion 5 of the neck 3.
  • the valve 4 is pressed vertically on the storage box 2 by the pressing member 82 so that the crown fixing 42 cooperates by complementarity of shapes with the seat portion 5.
  • the convex face of the cup 40 is turned towards the hollow body 20 of the storage box 2.
  • the pressing member 82 is moved by means of an elastic spring or a jack.
  • the pressing force is optimally distributed on the fixing ring 4, the holding member 81 fulfilling a counter-support function.
  • the resistance to sinking is improved in particular by the fact that the storage box 2 is held by the neck 3.
  • the fixing ring 42 is precisely centered in the housing 2 while compressing the material sealing 7 in a progressive manner, which guarantees optimum sealing.
  • the valve positioning step 4 is precise and is thus easy and reproducible at a high rate.
  • the plating member 82 since the plating member 82 has a vertical opening 84 in which the dispensing member 41 extends, no mechanical force is applied to the dispensing member 41, which avoids any damage.
  • the deformation member 83 is moved so as to fold down the upper end of the neck 3, that is to say the locking portion 6, on the fixing ring 42 of the valve 4 in order to lock so final valve 4 in the storage box both axially and transversely.
  • the deformation members 83 of different shapes can then be used successively. The deformation members 83 thus allow crimping of the fixing ring 42 of the valve 4 which does not generate zones of weakness.
  • the storage box 2 is filled, via the dispensing member 41 of the valve 4, with propellant fluid (step not shown).
  • the propellant is conveyed via the vertical opening 84 of the plating member 82, the propellant being able to be compressed or liquefied.
  • the propellant can be introduced before closing the storage box 2 by the dispensing valve 4.
  • the propellant mixes with the product to be dispensed in the hollow body 20 of the storage box 2 to form the product pressurized G to dispense.
  • the pressurized product G of the hollow body 20 exerts pressure on the underside of the cup 40, which tends to increase the diameter of the fixing ring 42.
  • the stress between the cup 40 and the neck cylindrical 3 increases due to the pressurized product G, which guarantees a tight and quality closure.
  • the convexity of the cup 40 makes it possible to improve the resistance to pressure.
  • a perfectly locked and sealed distribution device 1 is thus obtained at a limited manufacturing price.
  • the storage box 2 has only one neck 3, the manufacture is inexpensive compared to the prior art since it does not require manufacture of a rolled edge, manufacture of a stamped edge or manufacture of a rolled and stamped edge.
  • the distribution valve 4 has for its part a reduced cost price since the cup 40 is simple to manufacture and does not require any complex machining or stamping step. Finally, the equipment necessary for assembling the distribution valve 4 in the storage box 2 is reduced, the assembly is precise and stable, which makes it possible, among other things, to speed up production rates and facilitate control steps. .
  • the dispensing valve 4 In use, when the mechanical member 41 is pressed down towards the hollow body 20 of the storage box 2, the dispensing valve 4 is open and the product to be dispensed can escape from the dispensing device 1.
  • a dispensing device 1 is very well suited for products which can be packaged with propellants (N 2 , N 2 O, CO 2 , ...) up to 15 bars at 50 ° C, in particular following developments of aerosol directive 75/324 / EEC.
  • the pressure resistance of such a dispensing device 1 is improved in order to withstand a pressure of 40 bars, in particular during the heating of said storage box 2.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Claims (10)

  1. Vorrichtung zur Ausgabe (1) eines unter Druck stehenden Produkts (G), die sich axial gemäß einer Achse (X) erstreckt, wobei die Vorrichtung (1) aufweist:
    - einen Vorratsbehälter (2), der einen mit unter Druck stehendem Produkt (G) gefüllten Hohlkörper (20) aufweist, wobei eine obere Montageöffnung (21) und ein Kragen (3) den Hohlkörper (20) mit der oberen Montageöffnung (21) verbinden, und
    - ein Ausgabeventil (4), das eine Schale (40) aufweist, die eine obere Fläche und eine untere Fläche definiert, die zur Befestigung am Vorratsbehälter (2) geeignet ist, um ihn zu verschließen, und ein Ausgabeorgan (41), das an einem radial inneren Abschnitt der Schale (40) befestigt ist, wobei die Schale (40) einen peripheren Befestigungskranz (42) aufweist, der das äußere radiale Ende der Schale (40) bildet, der nach innen geneigt ist, in einer axialen Schnittebene,
    wobei die Vorrichtung dadurch gekennzeichnet ist, dass der Kragen (3) aufweist:
    - einen nach innen geneigten Sitzabschnitt (5), der eine Länge zwischen 0,5 mm und 5 mm in einer axialen Schnittebene besitzt, der durch Formkomplementarität mit einer unteren Fläche des Befestigungskranzes (42) derart zusammenwirkt, dass ein Sitz gebildet wird, und
    - einen auf eine obere Fläche des Befestigungskranzes (42) derart heruntergeklappten Blockierabschnitt (6), dass seine Position blockiert wird.
  2. Ausgabevorrichtung (1) nach Anspruch 1, wobei der Befestigungskranz (42) in Bezug auf die Achse (X) des Gehäuses (2) zum Inneren des Vorratsbehälters (2) in einem Winkel (α) zwischen 10° und 45° in einer axialen Schnittebene geneigt ist.
  3. Ausgabevorrichtung (1) nach einem der Ansprüche 1 und 2, wobei der Sitzabschnitt (5) in Bezug auf die Achse (X) des Gehäuses (2) zum Inneren des Vorratsbehälters (2) in einem Winkel zwischen 10° und 45° in einer axialen Schnittebene geneigt ist.
  4. Ausgabevorrichtung (1) nach einem der Ansprüche 1 bis 3, wobei der Blockierabschnitt (6) kürzer als der Sitzabschnitt (5) ist, vorzugsweise von 5 bis 80 %.
  5. Ausgabevorrichtung (1) nach einem der Ansprüche 1 bis 4, wobei der Blockierabschnitt eine Länge zwischen 0,2 mm und 4 mm in einer axialen Schnittebene besitzt.
  6. Ausgabevorrichtung (1) nach einem der Ansprüche 1 bis 5, wobei die Schale (40) nur mit dem Sitzabschnitt (5) und dem Blockierabschnitt (6) in Kontakt ist.
  7. Ausgabevorrichtung (1) nach einem der Ansprüche 1 bis 6, wobei der Blockierabschnitt (6) das obere Ende des Kragens (3) bildet.
  8. Ausgabevorrichtung (1) nach einem der Ansprüche 1 bis 7, aufweisend ein peripheres Dichtungsmaterial (7), das zwischen dem Befestigungskranz (42) und dem Sitzabschnitt (5) des Kragens (3) angebracht ist.
  9. Montageverfahren einer Ausgabevorrichtung (1) nach einem der Ansprüche 1 bis 8, wobei der Blockierabschnitt (6) zum Sitzabschnitt (5) radial außen ist, wobei das Verfahren aufweist:
    - einen Schritt des Positionierens der Schale (40) im Kragen (3) des Gehäuses (2), wobei sich der Befestigungskranz (42) auf dem Sitzabschnitt (5) abstützt, und
    - einen Schritt des Verlagerns des Blockierabschnitts (6) radial nach innen derart, dass er auf die obere Fläche des Befestigungskranzes (42) heruntergeklappt wird, um seine Position zu blockieren.
  10. Maschine für die Montage (8) einer Ausgabevorrichtung (1) nach einem der Ansprüche 1 bis 8, wobei die Maschine (8) dadurch gekennzeichnet ist, dass sie umfasst:
    - ein Halteorgan (81), das zum Ergreifen des Gehäuses (2) an seinem Kragen (3) geeignet ist,
    - ein Andrückorgan (82), das zum Ausüben einer Abstützung auf das Ventil (4) gemäß der Achse (X) derart geeignet ist, dass es an den Sitzabschnitt (5) des Kragens (3) angedrückt wird, und
    - ein Verformungsorgan (83), das zum Verformen des oberen Endes des Kragens (3) geeignet ist, um es auf den Befestigungskranz (42) des Ventils (4) herunterzuklappen und seine Position zu blockieren.
EP17790693.0A 2016-10-17 2017-10-10 Vorrichtung zur ausgabe eines unter druck stehenden produktes, verfahren und maschine zur montage solch einer vorrichtung Active EP3526138B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1660010A FR3057645B1 (fr) 2016-10-17 2016-10-17 Dispositif de distribution de produit pressurise, procede et machine d'assemblage d'un tel dispositif
PCT/EP2017/075750 WO2018073042A1 (fr) 2016-10-17 2017-10-10 Dispositif de distribution de produit pressurisé, procede et machine d'assemblage d'un tel dispositif

Publications (2)

Publication Number Publication Date
EP3526138A1 EP3526138A1 (de) 2019-08-21
EP3526138B1 true EP3526138B1 (de) 2020-04-01

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EP (1) EP3526138B1 (de)
FR (1) FR3057645B1 (de)
WO (1) WO2018073042A1 (de)

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Publication number Priority date Publication date Assignee Title
US20220289468A1 (en) * 2019-07-24 2022-09-15 Lindal France Sas Valve cup for pressurized container

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
FR1453384A (fr) 1965-07-26 1966-06-03 Coal Industry Patents Ltd Transporteur sur monorail
GB9912356D0 (en) * 1999-05-26 1999-07-28 Btg Int Ltd Generation of microfoam
DE502008002166D1 (de) * 2007-07-27 2011-02-10 Crebocan Ag Dosenkörper und verfahren sowie vorrichtung zum herstellen desselben
JP4586123B1 (ja) * 2009-08-24 2010-11-24 武内プレス工業株式会社 耐食性エアゾール容器の製造方法および二重エアゾール容器の製造方法

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WO2018073042A1 (fr) 2018-04-26
EP3526138A1 (de) 2019-08-21
FR3057645A1 (fr) 2018-04-20
FR3057645B1 (fr) 2018-10-19

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