EP0581947B1 - Fluid dispensing container - Google Patents

Fluid dispensing container Download PDF

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Publication number
EP0581947B1
EP0581947B1 EP93905400A EP93905400A EP0581947B1 EP 0581947 B1 EP0581947 B1 EP 0581947B1 EP 93905400 A EP93905400 A EP 93905400A EP 93905400 A EP93905400 A EP 93905400A EP 0581947 B1 EP0581947 B1 EP 0581947B1
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EP
European Patent Office
Prior art keywords
dispensing
container
conditioning chamber
fluid
chamber
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.)
Expired - Lifetime
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EP93905400A
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German (de)
French (fr)
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EP0581947A1 (en
Inventor
Daniel Bauer
Dominique Esclar
Gérard Braque
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LOreal SA
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LOreal SA
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D83/00Containers or packages with special means for dispensing contents
    • B65D83/14Containers 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
    • B65D83/32Dip-tubes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D83/00Containers or packages with special means for dispensing contents
    • B65D83/14Containers 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
    • B65D83/44Valves specially adapted therefor; Regulating devices
    • B65D83/52Valves specially adapted therefor; Regulating devices for metering

Definitions

  • the present invention relates to a fluid dispenser container, of simple construction, and making it possible to avoid all of the above drawbacks; thanks to the dispensing container, according to the invention, a precise quantity of fluid can be dispensed during use and the dispensing container cannot be emptied continuously.
  • a dispensing container is schematically illustrated at 1 in FIG. 1;
  • the dispensing container 1 is of the aerosol can type, the interior 18 of the dispensing container 1 containing a dispensing fluid 19 subjected to the internal pressure generated by a propellant fluid, as known per se;
  • the distribution means here is a conventional distribution valve 2 which allows, by action on a pusher carried by the valve 2, a distribution of fluid sprayed through a nozzle 3, the fluid previously passing through a dip tube 17.
  • the tube 17 is in communication at 17 a with a conditioning chamber 4 consisting, according to the example shown in this figure, of a bellows 7 of generally cylindrical shape, the elastic cylindrical part being tightly secured by its ends to two plates 5 a and 5 b ; the plate 5 a is provided with a calibrated orifice 6. This orifice 6 is located in the vicinity of the edge of the plate 5 a , under a fold of the bellows 7.
  • the assembly is such that when the bellows 7 is folded, as illustrated on Figure 2 where the volume of the chamber 4 is minimum, the orifice 6 is obstructed by the bellows 7. Any communication is thus cut between the interior 18 of the container and the chamber 4. Any communication between the interior 18 and the tube 17 is therefore also cut.
  • the emptying will cease even if the user maintains his action on the push-button of the dispensing valve, when the chamber 4 has reached its minimum volume, for example when the folds of the bellows are contiguous: it is this position which is shown in Figure 2.
  • the orifice 6 is then closed and the spraying stop is clear.
  • FIG. 4 and 5 schematically show a second embodiment of a dispenser container of the aerosol can type equipped with another variant of the packaging chamber according to the invention.
  • a deformable elastic membrane 8 cylindrical, whose upper part is open, has its circumferential edge secured to the container 1 by crimping the cylindrical portion of the container and the conical part 1 is, as usually done, and its bottom secured to the end bottom of the tube 17 therethrough and opens at 17a in the space between the inner wall of the container and the diaphragm 8; this space constitutes the conditioning chamber according to the invention, the movable wall of which is subjected to the internal pressure of the container is the membrane 8.
  • the bottom of said membrane comprises means 6 for timing consisting of a calibrated hole.
  • Figures 6 and 7 show variants of the membrane conditioning chamber; the tube 17 is integral with a membrane-holder part shaped to receive an elastic membrane, leaving it with the possibility of movement, the volume generated by the membrane during its movement constituting the conditioning chamber 4 with variable volume according to the invention; according to FIG. 6, the membrane-supporting part 23 is in the form of a diabolo and the membrane 8 is cylindrical and subject to sealing at the two ends of the diabolo.
  • the membrane 8 is shown in phantom in Figure 6 in the position where the internal pressure applies it to the surface of the dolly, position for which spraying has ceased.
  • a calibrated bore 8 a in the part 23 delays the filling of the chamber 4. At the end of the chamber 4 emptying, the orifice 17 a is closed by the membrane 8. Any communication between the distribution valve and the chamber 4 is interrupted. The membrane 8 also obstructs the calibrated bore 8 a .
  • the membrane-holder part 24 has a semi-spherical cavity closed by the membrane 8.
  • tube 17 provided with a wide radial orifice 22 cooperating with an elastic cylindrical sleeve 21 threaded tight on the tube 17; the pressure in the tube 17 raises the sleeve 21 when the container is pressurized by the tube 17 and keeps the container under pressure when the operation is complete.

Abstract

Fluid dispensing container (1) fitted with a dispensing valve (2) carrying an outlet means (3) through which the fluid is dispensed upon the actuation of a push-button carried by the valve; a variable volume conditioning chamber (4) defined by a movable wall (5a^_)subjected to the internal pressure of the container, said chamber communicates, on the one hand with the dispensing valve (2) and , on the other hand, with the inside (18) of the container through delay means embodied as a high charge lost passage. When the conditioning chamber (4) is empty, the communication between the dispensing valve (2) and the inside (18) of the container is interrupted.

Description

L'invention concerne un récipient distributeur de fluide équipé d'un moyen de distribution portant un moyen de sortie au travers duquel le fluide est distribué lors de la mise en oeuvre du moyen de distribution. Dans de nombreuses applications, un tel récipient distributeur est utilisé pour distribuer des fluides nocifs ou inflammables et présente dès lors un certain danger s'il est, accidentellement ou non, utilisé en continu compte tenu de la quantité de fluide contenue dans le récipient, prévue en général pour plusieurs utilisations.The invention relates to a fluid dispenser container equipped with a dispensing means carrying an outlet means through which the fluid is dispensed during the implementation of the dispensing means. In many applications, such a dispensing container is used to distribute harmful or flammable fluids and therefore presents a certain danger if it is, accidentally or not, used continuously taking into account the quantity of fluid contained in the container, provided usually for multiple uses.

On a déjà proposé dans le brevet GB-A- 2 050 303 d'équiper un récipient distributeur du type bidon aérosol d'une chambre de dosage de façon à limiter la quantité de fluide distribué lors d'une utilisation : on comprendra aisément qu'une telle disposition ne suffit pas pour pallier l'inconvénient ci-dessus car de nombreuses utilisations successives sont possibles.It has already been proposed in patent GB-A-2,050,303 to equip a dispensing container of the aerosol can type with a metering chamber so as to limit the quantity of fluid dispensed during use: it will be readily understood that such an arrangement is not sufficient to overcome the above drawback because many successive uses are possible.

On a également proposé dans le brevet US-A- 3 519 171, pour éviter la vidange complète, donc dangereuse, d'un bidon aérosol, de doter ledit bidon d'un dispositif à bille qui, au bout d'un certain temps de distribution, obture le passage du fluide à distribuer vers le moyen de distribution et est maintenue dans cette position par action de la pression du fluide à distribuer due au gaz propulseur, tant que cette action n'est pas équilibrée par la pression d'un espace, séparé de l'intérieur du bidon par une membrane perméable au gaz propulseur, la structure de cette membrane définissant un temps à la fin duquel la bille libérera le passage du fluide à distribuer vers le moyen de distribution. La disposition selon ce brevet US-A- 3 519 171, si elle évite effectivement la vidange complète du bidon, rend imprécis, voir aléatoire, un dosage de la quantité de fluide à distribuer ; on remarquera, en outre, qu'elle est d'une réalisation compliquée.It has also been proposed in patent US-A-3,519,171, to avoid the complete emptying, therefore dangerous, of an aerosol can, to provide said can with a ball device which, after a certain time distribution, closes the passage of the fluid to be distributed towards the distribution means and is maintained in this position by action of the pressure of the fluid to be distributed due to the propellant gas, as long as this action is not balanced by the pressure of a space , separated from the inside of the container by a membrane permeable to propellant gas, the structure of this membrane defining a time at the end of which the ball will free the passage of the fluid to be dispensed towards the dispensing means. The arrangement according to this patent US-A-3,519,171, if it effectively avoids the complete emptying of the container, makes imprecise, even random, a dosage of the quantity of fluid to be dispensed; it will be noted, moreover, that it is a complicated achievement.

US-A-3 377 004 montre un récipient distributeur comprenant une valve de décharge et un soufflet, placé dans le récipient relié à la valve ; l'ensemble permit de délivrer une quantité dosée de produit. Afin d'obtenir une coupure nette de la distribution en fin de dose il est suggerè d'utilizer des moyens additionnels.US-A-3,377,004 shows a dispensing container comprising a discharge valve and a bellows, placed in the container connected to the valve; the whole allowed to deliver a metered quantity of product. In order to obtain a clear cut in the distribution at the end of the dose, it is suggested to use additional means.

FR-A-2 370 213 concerne un dispositif de distribution de fluide selon la première partie de la revendication 1 comportant un tube plongeant dans le fluide à distribuer. Dans le tube plongeur est logé un obstacle délimitant une section de passage restreinte. Sous la pression du produit à distibuer, l'écrasement du tube plongeur assure l'obturation de celui-ci après éjection de la dose de produit. Ce système ne permet pas d'assurer l'éjection d'une quantité précise de fluide et ne permet pas une temporisation importante de la distribution.FR-A-2 370 213 relates to a fluid distribution device according to the first part of claim 1 comprising a tube immersed in the fluid to be distributed. In the dip tube is housed an obstacle delimiting a restricted passage section. Under the pressure of the product to be dispensed, the crushing of the dip tube ensures the obturation of the latter after ejection of the dose of product. This system does not allow the ejection of a precise quantity of fluid and does not allow a significant delay in dispensing.

US-A-2 778 543 décrit un dispositif aérosol dont le débit est contrôlé par un orifice de section réduite. Mais le débit se maintient aussi longtemps que l'utilisateur appuie sur le bouton-poussoir.US-A-2,778,543 describes an aerosol device the flow rate of which is controlled by an orifice of reduced section. But the flow is maintained as long as the user presses the push button.

La présente invention a pour objet un récipient distributeur de fluide, de construction simple, et permettant d'éviter tous les inconvénients ci-dessus ; grâce au récipient distributeur, selon l'invention, une quantité précise de fluide peut être distribuée lors d'une utilisation et le récipient distributeur ne peut pas être vidé en continu.The present invention relates to a fluid dispenser container, of simple construction, and making it possible to avoid all of the above drawbacks; thanks to the dispensing container, according to the invention, a precise quantity of fluid can be dispensed during use and the dispensing container cannot be emptied continuously.

Selon l'invention, un récipient distributeur de fluide équipé d'un moyen de distribution portant un moyen de sortie au travers duquel le fluide est distribué lors de la mise en oeuvre du moyen de distribution, ledit récipient comportant intérieurement une chambre de conditionnement communiquant avec l'intérieur du récipient par des moyens de temporisation réalisés sous forme d'un passage à forte perte de charge pour temporiser l'alimentation de ladite chambre de conditionnement en fluide à distribuer, la chambre de conditionnement étant à volume variable et définie par des parois, dont l'une au moins est une paroi mobile soumise à la pression interne du récipient, ladite chambre de conditionnement étant alimentée en fluide à distribuer au travers du passage à forte perte de charge et communiquant également avec le moyen de distribution, caractérisé par le fait que le moyen de temporisation est constitué par un orifice calibré dont le diamètre règle la temporisation, la paroi mobile de la chambre venant obstruer l'orifice calibré lorsque ladite paroi mobile est dans la position où le volume de la chambre de conditionnement est minimum.According to the invention, a fluid distributor container equipped with a distribution means carrying an outlet means through which the fluid is distributed during the implementation of the distribution means, said container internally comprising a conditioning chamber communicating with the interior of the container by means of timing produced in the form of a passage with high pressure drop for delaying the supply of said conditioning chamber with fluid to be dispensed, the conditioning chamber being of variable volume and defined by walls , at least one of which is a movable wall subjected to the internal pressure of the container, said conditioning chamber being supplied with fluid to be distributed through the passage with high pressure drop and also communicating with the distribution means, characterized by fact that the timing means is constituted by a calibrated orifice whose diameter regulates the timing ization, the movable wall of the chamber obstructing the calibrated orifice when said movable wall is in the position where the volume of the conditioning chamber is minimum.

On obtient ainsi une coupure franche de la distribution.This gives a clear cut in the distribution.

Avantageusement, la paroi mobile de la chambre de conditionnement comprend un soufflet élastique. En fin de vidange de la chambre de conditionnement, le soufflet élastique vient obstruer un orifice calibré constituant le moyen de temporisation.Advantageously, the movable wall of the conditioning chamber comprises an elastic bellows. At the end of the emptying of the conditioning chamber, the elastic bellows obstructs a calibrated orifice constituting the delay means.

En variante, la paroi mobile de la chambre de conditionnement peut comprendre une membrane souple. En fin de vidange de la chambre de conditionnement, la membrane vient en appui contre la surface interne du récipient, ce qui obstrue un orifice calibré prévu dans la membrane et constituant le moyen de temporisation.Alternatively, the movable wall of the packaging chamber may include a flexible membrane. At the end of the emptying of the conditioning chamber, the membrane comes to bear against the internal surface of the container, which obstructs a calibrated orifice provided in the membrane and constituting the delay means.

Avantageusement, en fin de vidange de la chambre de conditionnement, la paroi mobile, en particulier la membrane peut également venir obstruer l'orifice du tube plongeur.Advantageously, at the end of the emptying of the conditioning chamber, the movable wall, in particular the membrane, can also obstruct the orifice of the dip tube.

De préférence, l'orifice calibré est prévu dans la paroi mobile.Preferably, the calibrated orifice is provided in the movable wall.

Le récipient distributeur peut être un bidon aérosol contenant le fluide à distribuer et un fluide propulseur sous pression, le moyen de distribution étant une valve de distribution.The dispensing container may be an aerosol can containing the fluid to be dispensed and a propellant fluid under pressure, the dispensing means being a dispensing valve.

De façon avantageuse, le bidon aérosol comprend un tube plongeur relié à une extrémité à la valve de distribution, la chambre de conditionnement étant reliée à l'autre extrémité du tube plongeur, en sorte que la communication de la chambre de conditionnement avec la valve de distribution s'effectue au travers du tube plongeur.Advantageously, the aerosol can comprises a dip tube connected at one end to the dispensing valve, the conditioning chamber being connected to the other end of the dip tube, so that the communication of the conditioning chamber with the valve distribution takes place through the dip tube.

Le récipient distributeur peut être équipé d'une pompe manoeuvrée manuellement et la chambre de conditionnement est disposée entre le volume intérieur du récipient et l'entrée de la pompe.The dispensing container can be equipped with a manually operated pump and the conditioning chamber is arranged between the interior volume of the container and the inlet of the pump.

L'invention sera décrite plus en détail, ci-après, à titre purement illustratif et non limitatif, à propos de modes de réalisation particuliers représentés sur les dessins annexés.The invention will be described in more detail below, purely by way of non-limiting illustration, with regard to particular embodiments shown in the accompanying drawings.

Sur ces dessins :

  • les figures 1 et 2 montrent schématiquement un premier exemple de réalisation d'un récipient distributeur du type bidon aérosol équipé d'une chambre de conditionnement, selon l'invention, dans les deux positions extrêmes des parois mobiles de la chambre de conditionnement ;
  • la figure 3 montre une variante de montage de la chambre de conditionnement du type de celle décrite à la figure 1 ;
  • les figures 4 et 5 montrent schématiquement un deuxième exemple de réalisation d'un récipient distributeur du type bidon aérosol équipé d'une autre variante de chambre de conditionnement, selon l'invention, dans les deux positions extrêmes de ses parois mobiles ;
  • les figures 6 et 7 montrent deux autres variantes de chambre de conditionnement du type de celle de la figure 5 ;
  • la figure 8, enfin, représente un exemple de moyen de remplissage rapide d'un récipient distributeur du type bidon aérosol équipé d'une chambre de conditionnement selon l'invention.
In these drawings:
  • Figures 1 and 2 schematically show a first embodiment of a dispenser container of the aerosol can type equipped with a conditioning chamber, according to the invention, in the two extreme positions of the movable walls of the conditioning chamber;
  • Figure 3 shows an alternative mounting of the conditioning chamber of the type described in Figure 1;
  • Figures 4 and 5 schematically show a second embodiment of a dispenser container of the aerosol can type equipped with another variant of conditioning chamber, according to the invention, in the two extreme positions of its movable walls;
  • Figures 6 and 7 show two other variants of conditioning chamber of the type of that of Figure 5;
  • FIG. 8, finally, represents an example of a rapid filling means of a dispensing container of the aerosol can type equipped with a packaging chamber according to the invention.

Un récipient distributeur est schématiquement illustré en 1 sur la figure 1 ; le récipient distributeur 1 est du type bidon aérosol, l'intérieur 18 du récipient distributeur 1 contenant un fluide à distribuer 19 soumis à la pression interne engendrée par un fluide propulseur, comme connu en soi ; le moyen de distribution est ici une valve de distribution classique 2 qui permet, par action sur un poussoir porté par la valve 2, une distribution de fluide pulvérisé au travers d'une buse 3, le fluide traversant préalablement un tube plongeur 17. Le tube 17 est en communication en 17a avec une chambre de conditionnement 4 constituée, selon l'exemple représenté sur cette figure, d'un soufflet 7 de forme générale cylindrique, la partie cylindrique élastique étant solidarisée de façon étanche par ses extrémités à deux plateaux 5a et 5b ; le plateau 5a est muni d'un orifice calibré 6. Cet orifice 6 est situé au voisinage du bord du plateau 5a, sous un pli du soufflet 7. L'ensemble est tel que lorsque le soufflet 7 est replié, comme illustré sur la figure 2 où le volume de la chambre 4 est minimum, l'orifice 6 est obstrué par le soufflet 7. Toute communication est ainsi coupée entre l'intérieur 18 du récipient et la chambre 4. Toute communication entre l'intérieur 18 et le tube 17 est donc également coupée.A dispensing container is schematically illustrated at 1 in FIG. 1; the dispensing container 1 is of the aerosol can type, the interior 18 of the dispensing container 1 containing a dispensing fluid 19 subjected to the internal pressure generated by a propellant fluid, as known per se; the distribution means here is a conventional distribution valve 2 which allows, by action on a pusher carried by the valve 2, a distribution of fluid sprayed through a nozzle 3, the fluid previously passing through a dip tube 17. The tube 17 is in communication at 17 a with a conditioning chamber 4 consisting, according to the example shown in this figure, of a bellows 7 of generally cylindrical shape, the elastic cylindrical part being tightly secured by its ends to two plates 5 a and 5 b ; the plate 5 a is provided with a calibrated orifice 6. This orifice 6 is located in the vicinity of the edge of the plate 5 a , under a fold of the bellows 7. The assembly is such that when the bellows 7 is folded, as illustrated on Figure 2 where the volume of the chamber 4 is minimum, the orifice 6 is obstructed by the bellows 7. Any communication is thus cut between the interior 18 of the container and the chamber 4. Any communication between the interior 18 and the tube 17 is therefore also cut.

Dans la position représentée à la figure 1, le soufflet 7 est détendu et rempli du fluide à distribuer, la pression interne du récipient régnant dans tout l'intérieur du récipient, y compris dans la chambre 4 de conditionnement. L'orifice 6 est ouvert.In the position shown in Figure 1, the bellows 7 is expanded and filled with the fluid to be dispensed, the internal pressure of the container prevailing throughout the interior of the container, including in the chamber 4 of packaging. Port 6 is open.

Le fonctionnement en utilisation d'un tel récipient distributeur est le suivant :
   En actionnant le poussoir porté par la valve de distribution, pour l'ouverture du clapet que comporte ladite valve, comme connu en soi, et donc non représenté, l'utilisateur provoque la mise en communication avec l'atmosphère du tube plongeur 17 et donc de la chambre de conditionnement 4 ; le fluide est pulvérisé à travers la buse 3 ; la chambre de conditionnement 4 diminue de volume sous l'action de la pression interne du récipient : on notera que, pendant le temps que durera la vidange de la chambre 4, la pulvérisation se fera sous pression constante, à savoir la pression interne du récipient. Comme on le comprendra aisément, la vidange cessera même si l'utilisateur maintient son action sur le poussoir de la valve de distribution, lorsque la chambre 4 aura atteint son volume minimal, par exemple lorsque les plis du soufflet seront jointifs : c'est cette position qui est représentée à la figure 2. L'orifice 6 est alors fermé et l'arrêt de la pulvérisation est net.
The operation in use of such a dispensing container is as follows:
By actuating the pusher carried by the dispensing valve, for opening the valve that comprises said valve, as known per se, and therefore not shown, the user causes the plunger tube 17 to communicate with the atmosphere and therefore conditioning chamber 4; the fluid is sprayed through the nozzle 3; the conditioning chamber 4 decreases in volume under the action of the internal pressure of the container: it will be noted that, during the time that the emptying of the chamber 4 will last, the spraying will be done under constant pressure, namely the internal pressure of the container . As will be readily understood, the emptying will cease even if the user maintains his action on the push-button of the dispensing valve, when the chamber 4 has reached its minimum volume, for example when the folds of the bellows are contiguous: it is this position which is shown in Figure 2. The orifice 6 is then closed and the spraying stop is clear.

Pour pouvoir à nouveau utiliser le récipient distributeur, l'utilisateur devra attendre le remplissage, même partiel, de la chambre 4 qui s'effectuera à travers l'orifice calibré 6 qui constitue donc un moyen de temporisation, laquelle temporisation dépend du calibre de l'orifice 6. Le volume de la chambre 4 est choisi de sorte qu'il définit la quantité maximale autorisée de fluide à distribuer. Il est à noter que, dans la position détendue du soufflet, l'orifice 6 est voisin du fond du récipient, de façon à ce que le maximum du fluide contenu dans le récipient puisse être pris en compte par la chambre 4 lors de son remplissage.To be able to use the dispensing container again, the user will have to wait for the filling, even partial, of the chamber 4 which will be effected through the calibrated orifice 6 which therefore constitutes a means of timing, which timing depends on the size of the orifice 6. The volume of chamber 4 is chosen so that it defines the maximum authorized quantity of fluid to be dispensed. It should be noted that, in the relaxed position of the bellows, the orifice 6 is close to the bottom of the container, so that the maximum of the fluid contained in the container can be taken into account by the chamber 4 during its filling. .

Pour donner un ordre de grandeur des capacités relatives de la chambre et du récipient, dans le cas où, par exemple, le fluide à distribuer est de la laque pour cheveux, la chambre de conditionnement a une capacité de 20 à 30 cm³, correspondant à 2 ou 3 laquages et l'orifice calibré 6 est tel qu'il est nécessaire d'attendre 15 minutes pour que la chambre 4 passe de la position de la figure 2 à celle de la figure 1. Ainsi, grâce à l'invention, les risques associés à une grande concentration du fluide dans le local où s'effectue la distribution du fluide 19 sont très limités.To give an order of magnitude of the relative capacities of the chamber and the container, in the case where, for example, the fluid to be dispensed is hair spray, the conditioning chamber has a capacity of 20 to 30 cm³, corresponding to 2 or 3 lacquers and the calibrated orifice 6 is such that it is necessary to wait 15 minutes for that the chamber 4 passes from the position of FIG. 2 to that of FIG. 1. Thus, thanks to the invention, the risks associated with a high concentration of the fluid in the room where the fluid 19 is dispensed are very limits.

Sur la figure 3, la chambre de conditionnement 4 est définie également à l'intérieur d'un soufflet 7, mais selon cette variante, le tube 17 est solidaire du plateau 5a muni de moyens de temporisation constitués par un canal calibré 20, tandis que la partie supérieure 5c du soufflet 7 est montée à coulissement étanche sur le tube plongeur 17 qui communique avec la chambre de conditionnement 4 grâce à un orifice diamétral 17a prévu à cet effet dans la paroi du tube plongeur.In FIG. 3, the conditioning chamber 4 is also defined inside a bellows 7, but according to this variant, the tube 17 is integral with the plate 5 a provided with timing means constituted by a calibrated channel 20, while that the upper part 5 c of the bellows 7 is sealingly slidably mounted on the plunger tube 17 which communicates with the conditioning chamber 4 through a diametrical hole 17 provided for this purpose in the wall of the dip tube.

Le canal 20 est disposé au voisinage du bord du plateau 5a, sous les plis du soufflet 7. Lorsque le volume de la chambre 4 est minimum, le soufflet 7 replié obstrue le canal 20 comme dans le cas de la figure 2.The channel 20 is arranged in the vicinity of the edge of the plate 5 a , under the folds of the bellows 7. When the volume of the chamber 4 is minimum, the folded bellows 7 obstructs the channel 20 as in the case of FIG. 2.

Les figures 4 et 5 montrent schématiquement un deuxième exemple de réalisation d'un récipient distributeur du type bidon aérosol équipé d'une autre variante de chambre de conditionnement selon l'invention. Une membrane élastique déformable 8 cylindrique, dont la partie supérieure est ouverte, a son bord circonférentiel solidarisé au récipient 1 par sertissage de la partie cylindrique du récipient et de sa partie conique 1a, comme réalisé habituellement, et son fond solidarisé à l'extrémité inférieure du tube 17 qui le traverse et débouche en 17a dans l'espace compris entre la paroi interne du récipient et la membrane 8 ; cet espace constitue la chambre de conditionnement selon l'invention, dont la paroi mobile soumise à la pression interne du récipient est la membrane 8. Le fond de ladite membrane comporte des moyens 6 de temporisation constitués d'un trou calibré. Le bidon aérosol de la figure 4 fonctionne de la même façon que celui décrit à propos de la figure 1. Dans le cas de la figure 4, la pulvérisation du fluide 19 cesse lorsque sous l'action de la pression interne, la membrane 8 vient en appui contre la surface interne du bidon comme illustré à la figure 5, de sorte que l'orifice calibré 6 est obstrué.Figures 4 and 5 schematically show a second embodiment of a dispenser container of the aerosol can type equipped with another variant of the packaging chamber according to the invention. A deformable elastic membrane 8 cylindrical, whose upper part is open, has its circumferential edge secured to the container 1 by crimping the cylindrical portion of the container and the conical part 1 is, as usually done, and its bottom secured to the end bottom of the tube 17 therethrough and opens at 17a in the space between the inner wall of the container and the diaphragm 8; this space constitutes the conditioning chamber according to the invention, the movable wall of which is subjected to the internal pressure of the container is the membrane 8. The bottom of said membrane comprises means 6 for timing consisting of a calibrated hole. The aerosol can of FIG. 4 works in the same way as that described in connection with FIG. 1. In the case of FIG. 4, the spraying of the fluid 19 ceases when under the action of the internal pressure, the membrane 8 comes pressing against the internal surface of the container as illustrated in Figure 5, so that the calibrated orifice 6 is obstructed.

Les figures 6 et 7 montrent des variantes de chambre de conditionnement à membrane ; le tube 17 est solidaire d'une pièce porte-membrane conformée pour recevoir une membrane élastique en lui laissant une possibilité de débattement, le volume engendré par la membrane lors de son débattement constituant la chambre de conditionnement 4 à volume variable selon l'invention ; selon la figure 6, la pièce porte-membrane 23 est en forme de diabolo et la membrane 8 est cylindrique et assujettie de façon étanche aux deux extrémités du diabolo. La membrane 8 est représentée en traits mixtes sur la figure 6 dans la position où la pression interne l'applique sur la surface du diabolo, position pour laquelle la pulvérisation a cessé. Un perçage calibré 8a dans la pièce 23 assure la temporisation du remplissage de la chambre 4. En fin de vidange de la chambre 4, l'orifice 17a est fermé par la membrane 8. Toute communication entre la valve de distribution et la chambre 4 est interrompue. La membrane 8 obstrue également le perçage calibré 8a.Figures 6 and 7 show variants of the membrane conditioning chamber; the tube 17 is integral with a membrane-holder part shaped to receive an elastic membrane, leaving it with the possibility of movement, the volume generated by the membrane during its movement constituting the conditioning chamber 4 with variable volume according to the invention; according to FIG. 6, the membrane-supporting part 23 is in the form of a diabolo and the membrane 8 is cylindrical and subject to sealing at the two ends of the diabolo. The membrane 8 is shown in phantom in Figure 6 in the position where the internal pressure applies it to the surface of the dolly, position for which spraying has ceased. A calibrated bore 8 a in the part 23 delays the filling of the chamber 4. At the end of the chamber 4 emptying, the orifice 17 a is closed by the membrane 8. Any communication between the distribution valve and the chamber 4 is interrupted. The membrane 8 also obstructs the calibrated bore 8 a .

Selon la variante de la figure 7, la pièce porte-membrane 24 présente une cavité semi-sphérique fermée par la membrane 8.According to the variant of FIG. 7, the membrane-holder part 24 has a semi-spherical cavity closed by the membrane 8.

On voit que quelles que soient les formes décrites de chambre de conditionnement selon l'invention, il est impossible de vider complètement en continu le récipient distributeur. En pratique, la durée normale d'une vaporisation est courte : elle ne dépasse pas, en général, 10 secondes pour un insectiside, 15 secondes pour une laque pour cheveux, 5 secondes pour un déodorant, etc.... Un récipient distributeur est en général prévu pour 20 à 50 utilisations, il peut être vidé en 2 à 25 minutes suivant les cas ; grâce à l'invention, et dans le cas d'une temporisation de 15 minutes, il faudra des heures pour vidanger complètement le récipient, qui est donc à considérer comme un récipient distributeur de sécurité.It can be seen that whatever the described forms of packaging chamber according to the invention, it is impossible to completely empty the dispensing container continuously. In practice, the normal duration of a spray is short: it does not generally exceed 10 seconds for an insectiside, 15 seconds for a hair spray, 5 seconds for a deodorant, etc. A dispensing container is generally intended for 20 to 50 uses, it can be emptied in 2 to 25 minutes depending on the case; thanks to the invention, and in the case of a time delay of 15 minutes, it will take hours to completely empty the container, which is therefore to be considered as a safety dispensing container.

Les exemples décrits et représentés montrent l'application de l'invention à des bidons aérosols comportant un fluide propulseur et un tube plongeur ; il va de soi que l'invention s'applique également non seulement aux bidons aérosols sans tube plongeur mais également aux récipients distributeurs sans fluide propulseur, qui sont alors équipés d'une pompe manoeuvrée manuellement, la chambre de conditionnement étant disposée entre le volume intérieur du récipient et l'entrée de la pompe. L'invention peut s'appliquer également aux récipients distributeurs de fluides gazeux comprimés, tels que des gaz chimiques comme par exemple le chlore, l'hydrogène, qui sont munis de divers moyens de distribution (robinet...).The examples described and shown show the application of the invention to aerosol cans comprising a propellant fluid and a dip tube; it goes without saying that the invention also applies not only to aerosol cans without dip tube but also to dispensing containers without propellant, which are then equipped with a manually operated pump, the conditioning chamber being disposed between the interior volume container and pump inlet. The invention can also be applied to containers for dispensing compressed gaseous fluids, such as chemical gases such as, for example, chlorine, hydrogen, which are provided with various distribution means (tap, etc.).

Il est à noter qu'il est avantageux de faire en sorte que les moyens de communication de la chambre de conditionnement avec le fluide à distribuer, pour le remplissage de ladite chambre, soient disposés, à l'instant du remplissage, le plus près possible de la paroi inférieure du récipient.It should be noted that it is advantageous to ensure that the means of communication of the conditioning chamber with the fluid to be dispensed, for filling said chamber, are arranged, at the time of filling, as close as possible to the bottom wall of the container.

Dans le cas où l'invention est appliquée à un bidon aérosol, dont la mise sous pression est réalisée par l'intermédiaire de la valve de distribution, comme la chambre de conditionnement est disposée entre l'intérieur du récipient et le tube plongeur, les moyens de temporisation rendent longue cette opération de mise sous pression ; pour éviter cet inconvénient, il est utile de prévoir un large passage dans la valve en communication directe avec l'intérieur du récipient et de doter ce large passage d'un clapet anti-retour qui autorise la mise sous pression et est maintenu fermé par la pression interne du récipient ; par exemple, si le bidon aérosol est pourvu d'un tube plongeur, il est pratique d'équiper celui-ci d'un passage doté d'un clapet : sur la figure 8 est montré un exemple de tube 17 muni d'un large orifice radial 22 coopérant avec un manchon cylindrique 21 élastique enfilé serré sur le tube 17 ; la pression dans le tube 17 soulève le manchon 21 lors de la mise sous pression du récipient par le tube 17 et conserve le récipient sous pression lorsque l'opération est terminée.In the case where the invention is applied to an aerosol can, the pressurization of which is carried out by means of the dispensing valve, as the conditioning chamber is arranged between the interior of the container and the dip tube, the delay means make this pressurizing operation long; to avoid this drawback, it is useful to provide a large passage in the valve in direct communication with the interior of the container and to provide this large passage with a non-return valve which allows pressurization and is kept closed by the internal pressure of the container; for example, if the aerosol can is provided with a dip tube, it is practical to equip it with a passage provided with a valve: in FIG. 8 is shown an example of tube 17 provided with a wide radial orifice 22 cooperating with an elastic cylindrical sleeve 21 threaded tight on the tube 17; the pressure in the tube 17 raises the sleeve 21 when the container is pressurized by the tube 17 and keeps the container under pressure when the operation is complete.

Claims (7)

  1. Fluid dispensing container (1) equipped with a dispensing means (2) carrying an outlet means (3) through which the fluid is dispensed when the dispensing means is operated, the said container comprising on the inside a conditioning chamber (4) communicating with the inside (18) of the container through retarding means (6, 8a, 11a, 12a, 13, 20) made in the form of a passage with high head loss for retarding the supplying of the said conditioning chamber (4) with fluid to be dispensed, the conditioning chamber having a variable volume defined by walls, at least one of which is a mobile wall (5, 7, 8, 11, 12) subjected to the internal pressure of the container, the said conditioning chamber (4) being supplied with fluid to be dispensed through the passage with high head loss and also communicating with the dispensing means (2), characterized in that, the retarding means consists of a calibrated orifice (6, 8a, 20) whose diameter regulates the retardation, the mobile wall (5, 7, 8, 11, 12) of the chamber blocking off the calibrated orifice when the said mobile wall is in the position in which the volume of the conditioning chamber (4) is a minimum.
  2. Dispensing container according to Claim 1, characterized in that the mobile wall of the conditioning chamber comprises an elastic bellows (7).
  3. Dispensing container according to Claim 1, characterized in that the mobile wall of the conditioning chamber (4) comprises a flexible membrane (8).
  4. Dispensing container according to Claim 3, characterized in that the mobile wall (8) also comes to block the orifice (17a) of an immersed tube (17).
  5. Dispensing container according to one of Claims 1 to 4, characterized in that the dispensing container (1) is an aerosol canister containing the fluid (19) to be dispensed and a pressurized propellent fluid, the dispensing means (2) being a dispensing valve.
  6. Dispensing container according to Claim 5, characterized in that the aerosol canister comprises an immersed tube (17) connected at one end to the dispensing valve (2), the conditioning chamber (4) being connected to the other end of the immersed tube (17), so that the communication of the conditioning chamber (4) with the dispensing valve (2) occurs through the immersed tube (17).
  7. Dispensing container according to one of Claims 1 to 6, characterized in that the dispensing container (1) is equipped with a pump operated manually and the conditioning chamber (4) is arranged between the internal volume of the container and the entry of the pump.
EP93905400A 1992-02-24 1993-02-18 Fluid dispensing container Expired - Lifetime EP0581947B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9202087 1992-02-24
FR9202087A FR2687643B1 (en) 1992-02-24 1992-02-24 FLUID DISPENSER CONTAINER.
PCT/FR1993/000159 WO1993016941A1 (en) 1992-02-24 1993-02-18 Fluid dispensing container

Publications (2)

Publication Number Publication Date
EP0581947A1 EP0581947A1 (en) 1994-02-09
EP0581947B1 true EP0581947B1 (en) 1996-03-27

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EP93905400A Expired - Lifetime EP0581947B1 (en) 1992-02-24 1993-02-18 Fluid dispensing container

Country Status (8)

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US (2) US5429280A (en)
EP (1) EP0581947B1 (en)
JP (1) JPH06507140A (en)
CA (1) CA2108453A1 (en)
DE (1) DE69301974T2 (en)
ES (1) ES2085769T3 (en)
FR (1) FR2687643B1 (en)
WO (1) WO1993016941A1 (en)

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JP2003517348A (en) * 1999-08-03 2003-05-27 フアーマシア・アー・ベー Liquid discharge container
US6273304B1 (en) * 1999-11-10 2001-08-14 Toyo Aerosol Industry Co., Ltd. Subdividing apparatus for aerosol container
IL134219A0 (en) * 2000-01-25 2001-04-30 Gotit Ltd Spray dispenser
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EP3378569A1 (en) 2017-03-21 2018-09-26 The Procter & Gamble Company Dispensing device
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EP3489171A1 (en) 2017-11-23 2019-05-29 The Procter & Gamble Company Piston with flexible closure for aerosol container
EP3513880B1 (en) 2018-01-23 2021-08-25 The Procter & Gamble Company Dispensing device suitable for a foamable product
US11267644B2 (en) 2018-11-08 2022-03-08 The Procter And Gamble Company Aerosol foam dispenser and methods for delivering a textured foam product
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Also Published As

Publication number Publication date
US5520310A (en) 1996-05-28
US5429280A (en) 1995-07-04
ES2085769T3 (en) 1996-06-01
DE69301974D1 (en) 1996-05-02
FR2687643A1 (en) 1993-08-27
FR2687643B1 (en) 1995-04-28
JPH06507140A (en) 1994-08-11
DE69301974T2 (en) 1996-11-28
CA2108453A1 (en) 1993-08-25
WO1993016941A1 (en) 1993-09-02
EP0581947A1 (en) 1994-02-09

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