EP0755878B2 - Dispensing head for dispensing a liquid in the form of an aerosol and dispenser provided with such a head - Google Patents

Dispensing head for dispensing a liquid in the form of an aerosol and dispenser provided with such a head Download PDF

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Publication number
EP0755878B2
EP0755878B2 EP96401541A EP96401541A EP0755878B2 EP 0755878 B2 EP0755878 B2 EP 0755878B2 EP 96401541 A EP96401541 A EP 96401541A EP 96401541 A EP96401541 A EP 96401541A EP 0755878 B2 EP0755878 B2 EP 0755878B2
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EP
European Patent Office
Prior art keywords
duct
dispensing head
nozzle
nozzles
head according
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Expired - Lifetime
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EP96401541A
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German (de)
French (fr)
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EP0755878B1 (en
EP0755878A1 (en
Inventor
Vincent De Laforcade
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LOreal SA
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LOreal SA
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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
    • B65D83/28—Nozzles, nozzle fittings or accessories specially adapted therefor
    • B65D83/30—Nozzles, nozzle fittings or accessories specially adapted therefor for guiding the flow of spray, e.g. funnels, hoods
    • B65D83/303—Nozzles, nozzle fittings or accessories specially adapted therefor for guiding the flow of spray, e.g. funnels, hoods using extension tubes located in or at the outlet duct of the nozzle assembly
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
    • 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
    • B65D83/16—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 characterised by the actuating means
    • B65D83/20—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 characterised by the actuating means operated by manual action, e.g. button-type actuator or actuator caps
    • B65D83/205—Actuator caps, or peripheral actuator skirts, attachable to the aerosol container

Definitions

  • the invention relates to a dispensing head of a liquid product in aerosol form according to the preamble of claim 1 and to a distributor comprising a reservoir for the product, provided with this distribution head.
  • the distributor may in particular be used in cosmetics for distribution hair spray, deodorant, lotion anti-lice, pharmaceutical for the distribution of repellents for insects and agricultural for the distribution of insecticides.
  • the dispenser of the invention includes, so known, a product distribution head, a tank fitted with a distribution valve fitted with a rod control socket with a product inlet and a product outlet; the dispensing head has a push button to activate the valve via the rod, at at least two nozzles housed in the push button and at the at least two conduits respectively connecting each nozzle at the outlet of the rod.
  • a lacquer dispenser of this type is described in document FR-A-2691383.
  • axes of the two nozzles are located in the same plane and form a narrow angle between them between 1 ° and 40 °.
  • These nozzles are supplied with product by conduits whose axes are parallel to each other.
  • This distributor delivers a spray whose impact surface presents a product distribution of variable density, risking modifying the shaping of the hair. he does not allow the delivery of a homogeneous spray and soft.
  • this dispenser at a narrow angle between the nozzle axes is difficult to achieve because it requires to manufacture strongly inclined nozzles.
  • the present invention therefore aims to remedy the disadvantages mentioned above.
  • the main object of the present invention is to provide a distribution head of the kind defined above, which delivers a homogeneous spray.
  • Her goal is also to provide a distribution head which delivers a soft, non-diffuse spray. It also aims to offer a dispensing head delivering a spray having good particle size properties of product and flow droplets.
  • Another purpose of the invention is to provide a distribution head which is simple to manufacture.
  • the dispensing head of the invention can be used for the distribution of hair spray, the impact of resulting spray on the hair respecting the shape of the hair.
  • the present invention therefore relates to a head of distribution according to claim 1.
  • the invention also relates to a dispenser comprising a pressure tank containing a product liquid to be dispensed in aerosol form, a valve of distribution of this product provided with a hollow rod of valve control, comprising an inlet and an outlet, a dispensing head fitted with a push button, two conduits and two nozzles, characterized by the causes the dispensing head to conform to that defined by claim 1.
  • each conduit connects each nozzle at the outlet of the valve stem.
  • the radial part is located substantially in a plane transverse to the longitudinal axis of the push button
  • each conduit can comprise an axial part having an axis parallel to the axis of the rod. One end of this part of the duct can be connected to the outlet of the hollow valve stem.
  • the product distributed by the head of distribution is a single product.
  • each nozzle has an axis oriented transversely to the longitudinal axis of the push button, the axes of the nozzles being located in the same plan, in order to facilitate the manufacture of the distribution head.
  • the axes of the nozzles form between them an angle ranging from 20 ° to 120 °, and preferably a 60 ° angle, to ensure collision of particles sprays.
  • the axis of each nozzle is separated from the axis of the axial part of the duct from a distance to less equal to the length of the pillar of the nozzle, added the width of the radial part of the duct. This separation distance facilitates molding and demolding of the dispensing head, even for a small angle between the axes of the nozzles.
  • the radial part of each conduit can connect the axial part to the other part of the conduit in communication with the nozzle.
  • She can be defined in a single room or in two separate rooms.
  • the radial part of each conduit can include a first element defined in the same part as that of the axial part of the conduit and a second element defined in a other part and carrying one of the nozzles, the two elements being linked together by a connecting means.
  • each conduit is perpendicular to the other part of the duct in communication with the nozzle.
  • the axial part of the duct can be connected to the other part of the conduit in communication with the nozzle by the radial part and by a curved part, especially flexible.
  • each nozzle is held by a mast and a bracket hanging on the push button.
  • the dispensing head comprises two nozzles. These are advantageously identical.
  • a distributor designated as a whole by reference 2, having an axis of symmetry X and comprising a distribution valve 4 fitted to a tank 6, generally cylindrical, pressurized using a propellant gas.
  • the tank also contains a product liquid, for example cosmetic, to be distributed under aerosol form.
  • This tank can be equipped with a pocket containing the product, or a plunger on which would act as a propellant indirectly.
  • Distributor 2 further includes a push button 8 fixed on the tank 6 or on the upper part of valve 4.
  • This push button comprises, according to the X axis, a cylindrical pin 10 integral with the wall upper 8a of the push button 8.
  • the pin 10 is crossed by an axial duct 12.
  • the free end (on the tank side) of the duct 12 has a larger diameter bore 14 than that of conduit 12, so as to form a housing to receive, with a slight tightening, the end free of a control rod 16 of the valve 4.
  • This valve is a classic valve whose opening is controlled by pushing the rod 16 along the X axis during of the application of a push on the push button. This axis also constitutes the longitudinal axis of the rod.
  • the valve 4 comprises a body 18 which is crimped, in upper part, on the side of the control rod, in a cup 20 fixed by crimping or swaging on a circular opening made at the top of a dome 6a of the reservoir 6.
  • This cup has a rolled edge 22 and covers the upper end of the dome 6a of the reservoir 6.
  • the lower part of the body 18 of valve, located on the side opposite to the control rod 16, has a connection zone 24, extended by a dip tube 26 extending to the bottom of the tank 6.
  • the free end 28 of the rod 16 constitutes an outlet rod product
  • the other end of the rod (not shown) located in the valve body 18 constitutes the product inlet of the rod.
  • the push button 8 comprises, according to the invention, two spray nozzles 30a, 30b and two conduits 11a, 11b.
  • Each conduit 11a, 11b respectively connects each nozzle 30a, 30b to the outlet 28 of the valve stem 16.
  • Each nozzle 30a, 30b is an insert on the push button 8 and comprises, in known manner, swirl channels. The parts of the dispenser relating to the first nozzle 30a will bear the index a and the parts relating to the second nozzle 30b will bear the index b .
  • Each conduit 11a, 11b comprises a part axial, also called axial duct, 12, a part radial, also called radial duct, 36a, 36b, and a part 35a, 35b in communication respectively with each nozzle 30a, 30b.
  • the push button also has two pillars 32a, 32b, of circular section, housed in sleeves 35a, 35b and define therewith an annular chamber 34a, 34b respectively supplied by the part 35a, 35b of the conduit 11a, 11b.
  • This rectilinear part 35a, 35b of the conduit is connected to the rectilinear radial duct 36a, 36b communicating with the axial duct 12.
  • the pillars have axes of symmetry A-A, B-B perpendicular to the X axis.
  • Each pillar 32a, 32b has a front face 44a, 44b.
  • Each part 35a, 35b of each conduit 11a, 11b opens out in the annular chamber 34a, 34b of the nozzles 30a, 30b and is parallel to the axis A-A, B-B of the nozzle 30a, 30b.
  • the nozzles 30a, 30b respectively comprise a peripheral skirt 38a, 38b which is inserted into the annular chamber 34a, 34b against the internal wall 40a, 40b of the sleeves 35a, 35b.
  • Each nozzle further comprises a rear face 42a, 42b, parallel to the front face 44a, 44b of the pillars 32a, 32b which comes to bear against it.
  • these respectively have an orifice 46a, 46b along the axes AA and BB.
  • the axes A-A, B-B of the nozzles 28a, 28b are located in the same plane perpendicular to the X axis. On the Figure 2, the axes A-A and B-B form, between them, a 60 ° angle.
  • the axis A-A, B-B the nozzle 30a, 30b is separated from the X axis of the central duct 12 a distance d which is at least equal to the length L pillar 32a, 32b plus the width I of the duct radial 36a, 36b (d ⁇ L + I).
  • the push button 8 is linked to a fixing ring 48 by a film hinge 50.
  • the fixing ring 48 comprises a plate 51, a skirt external 52 whose lower end 52a is in contact with the wall of the tank 6 and an internal skirt 54 which is snapped onto the annular edge 22 of the cup 20 of the reservoir 6.
  • Reliefs 56 linked to the internal skirt 54 and in contact with the annular edge 22 of the cup 20 ensure good stability of the fixing ring 48 on the tank 6.
  • the push button comprises a skirt 58 substantially cylindrical along the X axis provided with a tongue distributor control 60 which extends in one plane substantially transverse to the X axis.
  • Spray S has a slightly oval cross-section and has an almost homogeneous product density. Its appearance is identical to that of the single-nozzle sprays of the prior art.
  • the flow rate of the spray S is slightly higher than that of a spray obtained with a single nozzle, which makes it possible to maintain good retention of the hairstyle when the dispenser is used for the application of hair spray.
  • This figure 4 shows a distributor that stands out of that of FIG. 2 by the fact that the conduits radials 36a, 36b have two elements 62a, 64a, 62b, 64b linked together by a connecting means 66a, 66b.
  • the first element 62a, 62b is defined in the same room as that of the central duct 12.
  • the second element 64a, 64b carries the nozzle 30a, 30b.
  • Way to connection 66a, 66b includes a sealing ring 68a, 68b carried by the second element 64a, 64b and a channel 70a, 70b located inside the first element 62a, 62b, the rod 68a, 68b being slammed into the channel 70a, 70b. This arrangement facilitates the release of the parts of the push button.
  • FIG. 5 shows, before the nozzles are maintained, a push button whose conduits 111a, 111b are aligned along a Y axis orthogonal to the X axis and parallel to parts 135a, 135b of the conduit.
  • the ends 37a, 37b of these radial conduits are substantially parallel respectively to the axis A-A, B-B of the nozzle 30a, 30b.
  • Such an arrangement makes it possible to produce the push button by molding in one piece, and in particular radial ducts, sleeves and pillars.
  • the plate 51 of the fixing ring 48 comprises, in this embodiment, masts 74a, 74b and hooking brackets 76a, 76b whose height extends in a direction substantially parallel to the X axis. These masts and gallows constitute a means for hanging the nozzles so as to orient them in a configuration to obtain the result sought for the sprayed product.
  • the conduit 111a, 111b is defined in a flexible piece and is deformed by placing each nozzle 30a, 30b in the space between the mast 74a, 74b and the hanging bracket 76a, 76b.
  • the conduit 11 1a, 111b has a radial portion 136a, 136b which opens into the axial duct 12.
  • the wall of each duct 111a, 111b does not have a thickness constant on the same section, so as to allow good deformation of the duct.
  • Figure 7 shows how the nozzle 30a by mast 74a and the hanging bracket 76a.
  • the latter has a perpendicular projection 78a to the axis of the gallows and may help to keep position the nozzle 30a.
  • the part defining the conduits radials is, at each of its ends, blocked between the mast and the gallows.

Description

L'invention est relative à une tête de distribution d'un produit liquide sous forme d'aérosol selon le préambule de la revendication 1 et à un distributeur comprenant un réservoir pour le produit, muni de cette tête de distribution. Le distributeur peut notamment être utilisé dans les domaines cosmétique pour la distribution d'une laque capillaire, d'un déodorant, d'une lotion anti-poux, pharmaceutique pour la distribution de répulsifs pour insectes et agricole pour la distribution d'insecticides.The invention relates to a dispensing head of a liquid product in aerosol form according to the preamble of claim 1 and to a distributor comprising a reservoir for the product, provided with this distribution head. The distributor may in particular be used in cosmetics for distribution hair spray, deodorant, lotion anti-lice, pharmaceutical for the distribution of repellents for insects and agricultural for the distribution of insecticides.

Le distributeur de l'invention comprend, de façon connue, une tête de distribution de produit, un réservoir muni d'une valve de distribution équipée d'une tige creuse de commande comportant une entrée de produit et une sortie de produit; la tête de distribution comporte un bouton poussoir pour actionner la valve via la tige, au moins deux buses logées dans le bouton-poussoir et au moins deux conduits raccordant respectivement chaque buse à la sortie de la tige.The dispenser of the invention includes, so known, a product distribution head, a tank fitted with a distribution valve fitted with a rod control socket with a product inlet and a product outlet; the dispensing head has a push button to activate the valve via the rod, at at least two nozzles housed in the push button and at the at least two conduits respectively connecting each nozzle at the outlet of the rod.

Un distributeur de laque de ce type est décrit dans le document FR-A-2691383. Selon ce document, les axes des deux buses sont situés dans un même plan et forment entre eux un angle étroit compris entre 1° et 40°. Ces buses sont alimentées en produit par des conduits dont les axes sont parallèles entre eux. Ce distributeur délivre un spray dont la surface d'impact présente une répartition de produit de densité variable, risquant de modifier la mise en forme de la chevelure. Il ne permet pas la délivrance d'un spray homogène et doux. De plus, ce distributeur à un angle étroit entre les axes des buses est difficilement réalisable car il nécessite de fabriquer des buses fortement inclinées.A lacquer dispenser of this type is described in document FR-A-2691383. According to this document, axes of the two nozzles are located in the same plane and form a narrow angle between them between 1 ° and 40 °. These nozzles are supplied with product by conduits whose axes are parallel to each other. This distributor delivers a spray whose impact surface presents a product distribution of variable density, risking modifying the shaping of the hair. he does not allow the delivery of a homogeneous spray and soft. In addition, this dispenser at a narrow angle between the nozzle axes is difficult to achieve because it requires to manufacture strongly inclined nozzles.

Il est également décrit dans US-A-3045925 (correspondant au préambule de la revendication 1) un distributeur de deux produits contenus de façon séparés dans deux réservoirs. Chaque produit est pulvérisé sous forme de spray et le mélange des deux produits séparés est effectué par collision de deux sprays. Cette collision engendre alors un spray unique. Les orifices de pulvérisation sont chacun reliés à la sortie de la tige de valve du réservoir correspondant par un conduit rectiligne. Une tête de pulvérisation avec une telle dispositon des deux conduits rectilignes est difficile à fabriquer, notamment lors de la phase de démoulage d'une fabrication par moulage.
Par ailleurs, la collision des deux sprays de produits différents ne procure pas un spray unique homogène en produit, compte tenu d'un mauvais mélange des deux produits.It is also described in US-A-3045925 (corresponding to the preamble of claim 1) a dispenser of two products contained separately in two tanks. Each product is sprayed in the form of a spray and the mixing of the two separate products is carried out by collision of two sprays. This collision then generates a single spray. The spray orifices are each connected to the outlet of the valve stem of the corresponding tank by a straight pipe. A spray head with such an arrangement of the two rectilinear conduits is difficult to manufacture, in particular during the demolding phase of a production by molding.
Furthermore, the collision of the two sprays of different products does not provide a single spray that is homogeneous in product, given the poor mixing of the two products.

La présente invention vise donc à remédier aux inconvénients mentionnés ci-dessus.The present invention therefore aims to remedy the disadvantages mentioned above.

La présente invention a pour but, surtout, de proposer une tête de distribution du genre défini précédemment, qui délivre un spray homogène. Elle a pour but également de fournir une tête de distribution qui délivre un spray doux et non diffus. Elle a aussi pour but de proposer une tête de distribution délivrant un spray présentant de bonnes propriétés de granulométrie des goutelettes de produit et de débit. Un autre but de l'invention est de fournir une tête de distribution qui soit simple à fabriquer. Ces buts sont atteints par l'invention telle que définie dans la revendication 1.The main object of the present invention is to provide a distribution head of the kind defined above, which delivers a homogeneous spray. Her goal is also to provide a distribution head which delivers a soft, non-diffuse spray. It also aims to offer a dispensing head delivering a spray having good particle size properties of product and flow droplets. Another purpose of the invention is to provide a distribution head which is simple to manufacture. These objects are achieved by the invention as defined in claim 1.

La demanderesse a découvert, de façon inattendue et surprenante, qu'un tel résultat pouvait être obtenu par la collision de deux ou plusieurs sprays sortant simultanément de deux ou plusieurs buses, chaque buse étant alimentée par un conduit ayant un profil particulier.The Applicant unexpectedly discovered and surprisingly, that such a result could be obtained by the collision of two or more sprays coming out simultaneously two or more nozzles, each nozzle being supplied by a conduit having a particular profile.

La tête de distribution de l'invention peut être utilisée pour la distribution de laque capillaire, l'impact du spray résultant sur les cheveux respectant la forme de la chevelure.The dispensing head of the invention can be used for the distribution of hair spray, the impact of resulting spray on the hair respecting the shape of the hair.

La présente invention a donc pour objet une tête de distribution selon la revendication 1.The present invention therefore relates to a head of distribution according to claim 1.

L'invention a encore pour objet un distributeur comportant un réservoir sous pression renfermant un produit liquide à distribuer sous forme d'aérosol, une valve de distribution de ce produit munie d'une tige creuse de commande de valve, comportant une entrée et une sortie, une tête de distribution munie d'un bouton-poussoir, de deux conduits et de deux buses, caractérisé par le fait que la tête de distribution est conforme à celle définie par la revendication 1.The invention also relates to a dispenser comprising a pressure tank containing a product liquid to be dispensed in aerosol form, a valve of distribution of this product provided with a hollow rod of valve control, comprising an inlet and an outlet, a dispensing head fitted with a push button, two conduits and two nozzles, characterized by the causes the dispensing head to conform to that defined by claim 1.

Selon l'invention, chaque conduit raccorde chaque buse à la sortie de la tige de valve.According to the invention, each conduit connects each nozzle at the outlet of the valve stem.

Avantageusement, la partie radiale est située sensiblement dans un plan transversal à l'axe longitudinal du bouton-poussoirAdvantageously, the radial part is located substantially in a plane transverse to the longitudinal axis of the push button

Selon l'invention, chaque conduit peut comprendre une partie axiale ayant un axe parallèle à l'axe de la tige. Une extrémité de cette partie du conduit peut être reliée à la sortie de la tige creuse de valve.According to the invention, each conduit can comprise an axial part having an axis parallel to the axis of the rod. One end of this part of the duct can be connected to the outlet of the hollow valve stem.

De préférence, le produit distribué par la tête de distribution est un monoproduit. On entend par monoproduit un produit qui est conditionné dans un réservoir unique équipé de la tête de pulvérisation selon l'invention. Dans ce cas, les parties axiales des deux conduits sont confondues.Preferably, the product distributed by the head of distribution is a single product. We mean by monoproduct a product that is packaged in a tank single equipped with the spray head according to the invention. In this case, the axial parts of the two conduits are confused.

De façon avantageuse, chaque buse a un axe orienté transversalement par rapport à l'axe longitudinal du bouton-poussoir, les axes des buses étant situés dans un même plan, en vue de faciliter la fabrication de la tête de distribution.Advantageously, each nozzle has an axis oriented transversely to the longitudinal axis of the push button, the axes of the nozzles being located in the same plan, in order to facilitate the manufacture of the distribution head.

De préférence, les axes des buses forment entre eux un angle allant de 20° à 120°, et de préférence un angle de 60°, afin d'assurer la collision des particules des sprays.Preferably, the axes of the nozzles form between them an angle ranging from 20 ° to 120 °, and preferably a 60 ° angle, to ensure collision of particles sprays.

De préférence, l'axe de chaque buse est séparé de l'axe de la partie axiale du conduit d'une distance au moins égale à la longueur du pilier de la buse, additionnée de la largeur de la partie radiale du conduit. Cette distance de séparation facilite le moulage et le démoulage de la tête de distribution, même pour un petit angle entre les axes des buses.Preferably, the axis of each nozzle is separated from the axis of the axial part of the duct from a distance to less equal to the length of the pillar of the nozzle, added the width of the radial part of the duct. This separation distance facilitates molding and demolding of the dispensing head, even for a small angle between the axes of the nozzles.

Selon une première variante, la partie radiale de chaque conduit peut relier la partie axiale à l'autre partie du conduit en communication avec la buse. Elle peut être définie dans une seule et même pièce ou bien dans deux pièces distinctes. Dans ce cas, la partie radiale de chaque conduit peut comprendre un premier élément défini dans la même pièce que celle de la partie axiale du conduit et un deuxième élément défini dans une autre pièce et portant une des buses, les deux éléments étant liés entre eux par un moyen de liaison.According to a first variant, the radial part of each conduit can connect the axial part to the other part of the conduit in communication with the nozzle. She can be defined in a single room or in two separate rooms. In this case, the radial part of each conduit can include a first element defined in the same part as that of the axial part of the conduit and a second element defined in a other part and carrying one of the nozzles, the two elements being linked together by a connecting means.

Avantageusement, l'extrémité de la partie radiale de chaque conduit est perpendiculaire à l'autre partie du conduit en communication avec la buse.Selon une deuxième variante, la partie axiale du conduit peut être reliée à l'autre partie du conduit en communication avec la buse par la partie radiale et par une partie incurvée, notamment flexible. Dans ce cas, Avantageusement, chaque buse est maintenue par un mât et une potence d'accrochage sur le bouton-poussoir. Un tel agencement facilite le démoulage de la tête de distribution et confère à cette dernière une esthétique futuriste.Advantageously, the end of the radial part of each conduit is perpendicular to the other part of the duct in communication with the nozzle. second variant, the axial part of the duct can be connected to the other part of the conduit in communication with the nozzle by the radial part and by a curved part, especially flexible. In this case, Advantageously, each nozzle is held by a mast and a bracket hanging on the push button. Such an arrangement facilitates demolding of the dispensing head and gives the latter a futuristic aesthetic.

De préférence, la tête de distribution comporte deux buses. Celles-ci sont avantageusement identiques.Preferably, the dispensing head comprises two nozzles. These are advantageously identical.

L'invention consiste, mise à part les dispositions exposées ci-dessus, en un certain nombre d'autres dispositions dont il sera plus explicitement question après, à propos d'exemples de réalisation décrits en référence aux dessins annexés, mais qui ne sont nullement limitatifs.

  • La figure 1 est une coupe axiale d'un distributeur conforme à une première variante de l'invention.
  • La figure 2 est une coupe selon l'axe II - II du distributeur de la figure 1.
  • La figure 2a est une vue agrandie d'une partie de la figure 2.
  • La figure 3 est un schéma du spray délivré par le distributeur de la figure 1, dans le même plan que celui de la figure 2.
  • La figure 4 est une coupe, analogue à la figure 2, d'un distributeur conforme à une deuxième variante de l'invention.
  • La figure 5 est une vue en coupe, analogue à la figure 1, d'un distributeur conforme à une troisième variante de l'invention, avant maintien en place des buses.
  • La figure 6 est une coupe, analogue à la figure 2, du distributeur de la figure 5, après maintien en place des buses.
  • La figure 7 est une coupe partielle selon VII - VII du distributeur de la figure 6.
    • The invention consists, apart from the arrangements set out above, of a certain number of other arrangements which will be more explicitly discussed below, with reference to the embodiments described with reference to the appended drawings, but which are in no way intended limiting.
  • Figure 1 is an axial section of a dispenser according to a first variant of the invention.
  • FIG. 2 is a section along the axis II - II of the dispenser of FIG. 1.
  • Figure 2a is an enlarged view of part of Figure 2.
  • FIG. 3 is a diagram of the spray delivered by the dispenser of FIG. 1, in the same plane as that of FIG. 2.
  • Figure 4 is a section, similar to Figure 2, of a dispenser according to a second variant of the invention.
  • Figure 5 is a sectional view, similar to Figure 1, of a dispenser according to a third variant of the invention, before holding the nozzles in place.
  • Figure 6 is a section, similar to Figure 2, of the dispenser of Figure 5, after holding the nozzles in place.
  • FIG. 7 is a partial section on VII - VII of the dispenser of FIG. 6.

    • En se rapportant aux figures 1 à 3 annexées, on peut voir un distributeur désigné dans son ensemble par la référence 2, présentant un axe X de symétrie et comportant une valve de distribution 4 équipant un réservoir 6, généralement cylindrique, pressurisé à l'aide d'un gaz propulseur. Le réservoir contient, en outre, un produit liquide, par exemple cosmétique, à distribuer sous forme d'aérosol. Ce réservoir peut être équipé d'une poche contenant le produit, ou d'un piston sur lesquels agirait un gaz propulseur de façon indirecte.Referring to Figures 1 to 3 attached, we can see a distributor designated as a whole by reference 2, having an axis of symmetry X and comprising a distribution valve 4 fitted to a tank 6, generally cylindrical, pressurized using a propellant gas. The tank also contains a product liquid, for example cosmetic, to be distributed under aerosol form. This tank can be equipped with a pocket containing the product, or a plunger on which would act as a propellant indirectly.

    Le distributeur 2 comprend, de plus, un bouton-poussoir 8 fixé sur le réservoir 6 ou sur la partie supérieure de la valve 4. Ce bouton-poussoir comporte, suivant l'axe X, un pion 10 cylindrique solidaire de la paroi supérieure 8a du bouton-poussoir 8. Le pion 10 est traversé par un conduit axial 12.Distributor 2 further includes a push button 8 fixed on the tank 6 or on the upper part of valve 4. This push button comprises, according to the X axis, a cylindrical pin 10 integral with the wall upper 8a of the push button 8. The pin 10 is crossed by an axial duct 12.

    L'extrémité libre (du côté du réservoir) du conduit 12 comporte un alésage 14 de diamètre plus important que celui du conduit 12, de manière à former un logement pour recevoir, avec un léger serrage, l'extrémité libre d'une tige de commande 16 de la valve 4. Cette valve est une valve classique dont l'ouverture est commandée par enfoncement de la tige 16 selon l'axe X lors de l'application d'une poussée sur le bouton-poussoir. Cet axe constitue aussi l'axe longitudinal de la tige.The free end (on the tank side) of the duct 12 has a larger diameter bore 14 than that of conduit 12, so as to form a housing to receive, with a slight tightening, the end free of a control rod 16 of the valve 4. This valve is a classic valve whose opening is controlled by pushing the rod 16 along the X axis during of the application of a push on the push button. This axis also constitutes the longitudinal axis of the rod.

    La valve 4 comporte un corps 18 qui est serti, en partie haute, du côté de la tige de commande, dans une coupelle 20 fixée par sertissage ou dudgeonnage sur une ouverture circulaire pratiquée au sommet d'un dôme 6a du réservoir 6. Cette coupelle comporte un bord roulé 22 et coiffe l'extrémité supérieure du dôme 6a du réservoir 6. La partie inférieure du corps 18 de valve, située du côté opposé à la tige de commande 16, est munie d'une zone de raccordement 24, prolongée par un tube plongeur 26 s'étendant jusqu'au fond du réservoir 6.The valve 4 comprises a body 18 which is crimped, in upper part, on the side of the control rod, in a cup 20 fixed by crimping or swaging on a circular opening made at the top of a dome 6a of the reservoir 6. This cup has a rolled edge 22 and covers the upper end of the dome 6a of the reservoir 6. The lower part of the body 18 of valve, located on the side opposite to the control rod 16, has a connection zone 24, extended by a dip tube 26 extending to the bottom of the tank 6.

    L'extrémité libre 28 de la tige 16 constitue une sortie de produit de la tige, l'autre extrémité de la tige (non représentée) située dans le corps de valve 18 constitue l'entrée de produit de la tige.The free end 28 of the rod 16 constitutes an outlet rod product, the other end of the rod (not shown) located in the valve body 18 constitutes the product inlet of the rod.

    Comme visible sur les figures 2, 2a et 3, le bouton-poussoir 8 comporte, selon l'invention, deux buses de pulvérisation 30a, 30b et deux conduits 11a, 11b. Chaque conduit 11a, 11 b raccorde respectivement chaque buse 30a, 30b à la sortie 28 de la tige 16 de valve. Chaque buse 30a, 30b est une pièce rapportée sur le bouton-poussoir 8 et comporte, de façon connue, des canaux tourbillonnaires. Les parties du distributeur relatives à la première buse 30a porteront l'indice a et les parties relatives à la seconde buse 30b porteront l'indice b.As shown in Figures 2, 2a and 3, the push button 8 comprises, according to the invention, two spray nozzles 30a, 30b and two conduits 11a, 11b. Each conduit 11a, 11b respectively connects each nozzle 30a, 30b to the outlet 28 of the valve stem 16. Each nozzle 30a, 30b is an insert on the push button 8 and comprises, in known manner, swirl channels. The parts of the dispenser relating to the first nozzle 30a will bear the index a and the parts relating to the second nozzle 30b will bear the index b .

    Chaque conduit 11 a, 11b comprend une partie axiale, encore appelée conduit axial, 12, une partie radiale, encore appelée conduit radial, 36a, 36b, et une partie 35a, 35b en communication respectivement avec chaque buse 30a, 30b.Each conduit 11a, 11b comprises a part axial, also called axial duct, 12, a part radial, also called radial duct, 36a, 36b, and a part 35a, 35b in communication respectively with each nozzle 30a, 30b.

    Le bouton-poussoir comporte, en outre, deux piliers 32a, 32b, de section circulaire, logés dans des manchons 35a, 35b et définissent avec ces derniers une chambre annulaire 34a, 34b respectivement alimentée par la partie 35a, 35b du conduit 11a, 11b. Cette partie 35a, 35b rectiligne du conduit est reliée au conduit radial rectiligne 36a, 36b communiquant avec le conduit axial 12. Les piliers comportent des axes de symétrie A-A, B-B perpendiculaires à l'axe X. Chaque pilier 32a, 32b présente une face avant 44a, 44b. Chaque partie 35a, 35b de chaque conduit 11a, 11b débouche dans la chambre annulaire 34a, 34b des buses 30a, 30b et est parallèle à l'axe A-A, B-B de la buse 30a, 30b.The push button also has two pillars 32a, 32b, of circular section, housed in sleeves 35a, 35b and define therewith an annular chamber 34a, 34b respectively supplied by the part 35a, 35b of the conduit 11a, 11b. This rectilinear part 35a, 35b of the conduit is connected to the rectilinear radial duct 36a, 36b communicating with the axial duct 12. The pillars have axes of symmetry A-A, B-B perpendicular to the X axis. Each pillar 32a, 32b has a front face 44a, 44b. Each part 35a, 35b of each conduit 11a, 11b opens out in the annular chamber 34a, 34b of the nozzles 30a, 30b and is parallel to the axis A-A, B-B of the nozzle 30a, 30b.

    Les buses 30a, 30b comportent respectivement une jupe périphérique 38a, 38b qui vient s'insérer dans la chambre annulaire 34a, 34b contre la paroi 40a, 40b interne des manchons 35a, 35b. Chaque buse comporte, en outre, une face arrière 42a, 42b, parallèle à la face avant 44a, 44b des piliers 32a, 32b qui vient s'appliquer contre elle.
    Pour la pulvérisation du produit à travers les buses 28a, 28b, celles-ci comportent respectivement un orifice 46a, 46b selon les axes A-A et B-B.    The nozzles 30a, 30b respectively comprise a peripheral skirt 38a, 38b which is inserted into the annular chamber 34a, 34b against the internal wall 40a, 40b of the sleeves 35a, 35b. Each nozzle further comprises a rear face 42a, 42b, parallel to the front face 44a, 44b of the pillars 32a, 32b which comes to bear against it.
    For spraying the product through the nozzles 28a, 28b, these respectively have an orifice 46a, 46b along the axes AA and BB.

    Les axes A-A, B-B des buses 28a, 28b sont situés dans un même plan perpendiculaire à l'axe X. Sur la figure 2, les axes A-A et B-B forment, entre eux, un angle de 60°.The axes A-A, B-B of the nozzles 28a, 28b are located in the same plane perpendicular to the X axis. On the Figure 2, the axes A-A and B-B form, between them, a 60 ° angle.

    Comme visible sur la figure 2, l'axe A-A, B-B la buse 30a, 30b est séparé de l'axe X du conduit central 12 d'une distance d qui est au moins égale à la longueur L du pilier 32a, 32b additionnée de la largeur I du conduit radial 36a, 36b (d ≥ L + I).As visible in Figure 2, the axis A-A, B-B the nozzle 30a, 30b is separated from the X axis of the central duct 12 a distance d which is at least equal to the length L pillar 32a, 32b plus the width I of the duct radial 36a, 36b (d ≥ L + I).

    Par ailleurs, le bouton-poussoir 8 est lié à une bague de fixation 48 par une charnière film 50. La bague de fixation 48 comporte un plateau 51, une jupe externe 52 dont l'extrémité inférieure 52a est en contact avec la paroi du réservoir 6 et une jupe interne 54 qui est encliquetée sur le bord annulaire 22 de la coupelle 20 du réservoir 6. Des reliefs 56 liés à la jupe interne 54 et en contact avec le bord annulaire 22 de la coupelle 20 assurent la bonne stabilité de la bague de fixation 48 sur le réservoir 6.Furthermore, the push button 8 is linked to a fixing ring 48 by a film hinge 50. The fixing ring 48 comprises a plate 51, a skirt external 52 whose lower end 52a is in contact with the wall of the tank 6 and an internal skirt 54 which is snapped onto the annular edge 22 of the cup 20 of the reservoir 6. Reliefs 56 linked to the internal skirt 54 and in contact with the annular edge 22 of the cup 20 ensure good stability of the fixing ring 48 on the tank 6.

    Le bouton-poussoir comporte une jupe 58 sensiblement cylindrique selon l'axe X munie d'une languette de commande 60 du distributeur qui s'étend dans un plan sensiblement transversal à l'axe X.The push button comprises a skirt 58 substantially cylindrical along the X axis provided with a tongue distributor control 60 which extends in one plane substantially transverse to the X axis.

    Lorsqu'une poussée est appliquée sur la languette 60 du bouton-poussoir 8, le produit contenu dans le réservoir 6 est pulvérisé à l'extérieur via le conduit 12, les conduits radiaux 36a, 36b et les orifices 46a, 46b des buses 30a, 30b, sous l'action du gaz propulseur.When a push is applied to the tongue 60 of push button 8, the product contained in the tank 6 is sprayed outside via line 12, the radial conduits 36a, 36b and the orifices 46a, 46b nozzles 30a, 30b, under the action of the propellant gas.

    Comme le montre la figure 3, les deux sprays sa, sb sortant des deux buses se rencontrent en un point de convergence P puis forment un spray unique divergent S. La collision des particules des sprays sa, sb provoque une diminution de leur énergie cinétique générant un spray S d'une force d'impact plus faible que celle des sprays sa et sb ; ainsi, le spray S est doux. Le spray S a une section transversale légèrement ovale et présente une densité de produit quasi-homogène. Son apparence est identique à celle des sprays monobuse de l'art antérieur. Le débit du spray S est légèrement supérieur à celui d'un spray obtenu avec une seule buse, ce qui permet de conserver un bon maintien de la coiffure lorsque le distributeur est utilisé pour l'application de laque capillaire.As shown in FIG. 3, the two sprays s a , s b leaving the two nozzles meet at a point of convergence P then form a single divergent spray S. The collision of the particles of the sprays s a , s b causes a decrease in their kinetic energy generating a spray S with a lower impact force than that of the sprays s a and s b ; thus, spray S is soft. Spray S has a slightly oval cross-section and has an almost homogeneous product density. Its appearance is identical to that of the single-nozzle sprays of the prior art. The flow rate of the spray S is slightly higher than that of a spray obtained with a single nozzle, which makes it possible to maintain good retention of the hairstyle when the dispenser is used for the application of hair spray.

    Sur la figure 4, les éléments identiques ou jouant des rôles analogues à des éléments déjà décrits sont désignés par les mêmes références numériques. Leur description ne sera pas reprise ou sera effectuée succinctement.In FIG. 4, the identical or playing elements roles analogous to elements already described are designated by the same reference numerals. Their description will not be repeated or will be made succinctly.

    Cette figure 4 montre un distributeur qui se distingue de celui de la figure 2 par le fait que les conduits radiaux 36a, 36b comportent deux éléments 62a, 64a, 62b, 64b liés entre eux par un moyen de liaison 66a, 66b. Le premier élément 62a, 62b est défini dans la même pièce que celle du conduit central 12. Le second élément 64a, 64b porte la buse 30a, 30b. Le moyen de liaison 66a, 66b comporte un jonc d'étanchéité 68a, 68b porté par le deuxième élément 64a, 64b et une rigole 70a, 70b située à l'intérieur du premier élément 62a, 62b, le jonc 68a, 68b étant claqué dans la rigole 70a, 70b. Cet agencement facilite le démoulage des pièces du bouton-poussoir.This figure 4 shows a distributor that stands out of that of FIG. 2 by the fact that the conduits radials 36a, 36b have two elements 62a, 64a, 62b, 64b linked together by a connecting means 66a, 66b. The first element 62a, 62b is defined in the same room as that of the central duct 12. The second element 64a, 64b carries the nozzle 30a, 30b. Way to connection 66a, 66b includes a sealing ring 68a, 68b carried by the second element 64a, 64b and a channel 70a, 70b located inside the first element 62a, 62b, the rod 68a, 68b being slammed into the channel 70a, 70b. This arrangement facilitates the release of the parts of the push button.

    En se reportant aux figures 5 à 7, on peut voir une autre variante de réalisation du distributeur selon l'invention. Comme précédemment, les éléments différents de ceux de la figure 1 porteront des références additionnées de 100.
    Les différences portent essentiellement sur la forme des conduits.    Referring to Figures 5 to 7, we can see another alternative embodiment of the dispenser according to the invention. As before, elements other than those in FIG. 1 will bear references added to 100.
    The differences relate essentially to the shape of the conduits.

    Ainsi, la figure 5 montre, avant maintien des buses, un bouton-poussoir dont les conduits 111a, 111b sont alignés selon un axe Y orthogonal à l'axe X et parallèles aux parties 135a, 135b du conduit. Les extrémités 37a, 37b de ces conduits radiaux, sont sensiblement parallèles respectivement à l'axe A-A, B-B de la buse 30a, 30b. Un tel agencement permet de réaliser le bouton-poussoir par moulage d'une seule pièce, et notamment des conduits radiaux, des manchons et des piliers.Thus, FIG. 5 shows, before the nozzles are maintained, a push button whose conduits 111a, 111b are aligned along a Y axis orthogonal to the X axis and parallel to parts 135a, 135b of the conduit. The ends 37a, 37b of these radial conduits, are substantially parallel respectively to the axis A-A, B-B of the nozzle 30a, 30b. Such an arrangement makes it possible to produce the push button by molding in one piece, and in particular radial ducts, sleeves and pillars.

    Le plateau 51 de la bague de fixation 48 comporte, dans ce mode de réalisation, des mâts 74a, 74b et des potences d'accrochage 76a, 76b dont la hauteur s'étend dans une direction sensiblement parallèle à l'axe X. Ces mâts et potences constituent un moyen d'accrochage des buses de façon à les orienter dans une configuration permettant d'obtenir le résultat recherché pour le produit pulvérisé.The plate 51 of the fixing ring 48 comprises, in this embodiment, masts 74a, 74b and hooking brackets 76a, 76b whose height extends in a direction substantially parallel to the X axis. These masts and gallows constitute a means for hanging the nozzles so as to orient them in a configuration to obtain the result sought for the sprayed product.

    Comme illustré à la figure 6, le conduit 111a, 111b est défini dans une pièce souple et est déformé en plaçant chaque buse 30a, 30b dans l'espace situé entre le mât 74a, 74b et la potence d'accrochage 76a, 76b. Le conduit 11 1a, 111b présente une partie radiale 136a, 136b qui débouche dans le conduit axial 12. Bien que non représenté sur les figures, il est préférable que la paroi de chaque conduit 111a, 111b n'ait pas une épaisseur constante sur une même section, de façon à permettre une bonne déformation du conduit.As illustrated in FIG. 6, the conduit 111a, 111b is defined in a flexible piece and is deformed by placing each nozzle 30a, 30b in the space between the mast 74a, 74b and the hanging bracket 76a, 76b. The conduit 11 1a, 111b has a radial portion 136a, 136b which opens into the axial duct 12. Although not shown in the figures, it is preferable that the wall of each duct 111a, 111b does not have a thickness constant on the same section, so as to allow good deformation of the duct.

    La figure 7 montre la façon dont est maintenue la buse 30a par le mât 74a et la potence d'accrochage 76a. Cette dernière présente une avancée 78a perpendiculaire à l'axe de la potence et permet de mai ntenir en position la buse 30a. La pièce définissant les conduits radiaux se trouve, à chacune de ses extrémités, bloquée entre le mat et la potence.Figure 7 shows how the nozzle 30a by mast 74a and the hanging bracket 76a. The latter has a perpendicular projection 78a to the axis of the gallows and may help to keep position the nozzle 30a. The part defining the conduits radials is, at each of its ends, blocked between the mast and the gallows.

    Claims (15)

    1. Head for dispensing a liquid cosmetic product in the form of an aerosol, including a push-button (8) which has an axis (X), at least two ducts (11a, 11b, 111a, 111b) in the push-button and at least two nozzles (30a, 30b) provided in the push-button, at least part (36a, 36b, 136a, 136b) of each duct being radial, another part of the duct communicating with the nozzle and being orientated parallel to an axis (A-A, B-B) of the nozzle so that the sprays (sa, sb) leaving the nozzles strike each other, the head including pillars (32a, 32b) having a front face (44a, 44b) against which a rear face (42a, 42b) of the nozzles, which is parallel to the front face (44a, 44b) presses, each nozzle being a piece attached to the push-button and being of the type that includes swirl passages, the spray (S) obtained after collision of the sprays (sa, sb) being a single, homogeneous spray.
    2. Dispensing head according to Claim 1, characterized in that each duct comprises at least one axial part (12).
    3. Dispensing head according to Claim 1 or 2, characterized in that the product dispensed is a single product.
    4. Dispensing head according to any one of the preceding claims, characterized in that the axis (A-A, B-B) of each nozzle is orientated substantially transversely with respect to the longitudinal axis (X) of the push-button, the axes of the nozzles being situated in one and the same plane.
    5. Dispensing head according to any one of the preceding claims, characterized in that the axes of the nozzles form an angle ranging from 20° to 120° with each other.
    6. Dispensing head according to any one of the preceding claims, characterized in that the axis of each nozzle is separated from the axis of the axial part of the duct by a distance (d) at least equal to the length (L) of the pillar of the nozzle, plus the width (1) of the radial part of the duct.
    7. Dispensing head according to any one of the preceding claims, characterized in that the radial part of each duct is situated in a plane transverse to the longitudinal axis of the push-button.
    8. Dispensing head according to any one of the preceding claims, characterized in that the radial part of the duct connects the axial part to the other part of the duct communicating with the nozzle.
    9. Dispensing head according to any one of the preceding claims, characterized in that the duct further comprises a curved part.
    10. Dispensing head according to any one of the preceding claims, characterized in that the radial part of each duct comprises a first element (62a, 62b) defined in the same piece as that of the axial part of the duct and a second element (64a, 64b) carrying one of the nozzles and defined in another piece, the two elements being joined together by a linking means (66a, 66b).
    11. Dispensing head according to any one of the preceding claims, characterized in that each nozzle is held by a post (74a, 74b) and a fastening bracket (76a, 76b) which are fixed to the push-button.
    12. Dispensing head according to any one of the preceding claims, characterized in that the radial part of each duct is perpendicular to the other part of the duct communicating with the nozzle.
    13. Dispensing head according to any one of the preceding claims, characterized in that it includes two nozzles.
    14. Dispensing head according to any one of the preceding claims, characterized in that the nozzles are identical.
    15. Dispenser including:
      a pressurized container containing a liquid cosmetic product to be dispensed in the form of an aerosol,
      a valve for dispensing this product, this valve being equipped with a hollow valve-control stem including an inlet and an outlet,
      a dispensing head equipped with a push-button, with two ducts, and with two nozzles, characterized in that the dispensing head is in accordance with any one of Claims 1 to 14.
    EP96401541A 1995-07-24 1996-07-11 Dispensing head for dispensing a liquid in the form of an aerosol and dispenser provided with such a head Expired - Lifetime EP0755878B2 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR9508952A FR2737198B1 (en) 1995-07-24 1995-07-24 DISPENSING HEAD OF A LIQUID PRODUCT IN THE FORM OF AN AEROSOL AND DISPENSER PROVIDED WITH SUCH A HEAD
    FR9508952 1995-07-24

    Publications (3)

    Publication Number Publication Date
    EP0755878A1 EP0755878A1 (en) 1997-01-29
    EP0755878B1 EP0755878B1 (en) 1997-11-12
    EP0755878B2 true EP0755878B2 (en) 2004-09-01

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    EP96401541A Expired - Lifetime EP0755878B2 (en) 1995-07-24 1996-07-11 Dispensing head for dispensing a liquid in the form of an aerosol and dispenser provided with such a head

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    US (2) US5785250A (en)
    EP (1) EP0755878B2 (en)
    JP (1) JP2888797B2 (en)
    DE (1) DE69600099T3 (en)
    ES (1) ES2111411T5 (en)
    FR (1) FR2737198B1 (en)

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    Also Published As

    Publication number Publication date
    JP2888797B2 (en) 1999-05-10
    JPH0929138A (en) 1997-02-04
    ES2111411T5 (en) 2005-05-01
    ES2111411T3 (en) 1998-03-01
    EP0755878B1 (en) 1997-11-12
    DE69600099T2 (en) 1998-03-05
    EP0755878A1 (en) 1997-01-29
    FR2737198B1 (en) 1997-09-26
    US5785250A (en) 1998-07-28
    DE69600099T3 (en) 2005-04-21
    FR2737198A1 (en) 1997-01-31
    USRE38023E1 (en) 2003-03-11
    DE69600099D1 (en) 1997-12-18

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