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WO2003039996A1 - Fluid product dispensing device - Google Patents

Fluid product dispensing device Download PDF

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Publication number
WO2003039996A1
WO2003039996A1 PCT/FR2002/003798 FR0203798W WO03039996A1 WO 2003039996 A1 WO2003039996 A1 WO 2003039996A1 FR 0203798 W FR0203798 W FR 0203798W WO 03039996 A1 WO03039996 A1 WO 03039996A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
chamber
dispensing
orifice
rest position
Prior art date
Application number
PCT/FR2002/003798
Other languages
French (fr)
Inventor
Ludovic Petit
Original Assignee
Valois Sas
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Valois Sas filed Critical Valois Sas
Publication of WO2003039996A1 publication Critical patent/WO2003039996A1/en

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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 for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/44—Valves specially adapted for the discharge of contents; Regulating devices
    • B65D83/52—Metering valves; Metering devices
    • B65D83/546—Metering valves; Metering devices the metering occurring at least partially in the actuating means

Definitions

  • the present invention relates to a fluid product distribution device, and more particularly to a fluid product distribution device in which the fluid product is expelled using a propellant, by means of a metering valve.
  • Distributors using a propellant, and in particular a propellant gas, for dispensing the fluid product are well known in the state of the art, they generally include a reservoir in which the fluid product and the propellant are disposed, a valve being mounted on said tank.
  • the valve includes a valve that is actuated, that is to say that is pressed to dispense product.
  • the valve has a metering chamber, so that upon actuation of the valve, only the contents of said metering chamber are expelled through the valve.
  • the metering valve therefore involves a relatively complex structure for defining the metering chamber and obtaining its tightness. Expulsion is carried out when the valve is actuated, and the metering chamber is filled when the valve returns to its rest position.
  • the object of the present invention is to provide a metering valve which operates in a safe and reliable manner, and which minimizes any risk of valve malfunction.
  • the present invention therefore relates to a fluid dispensing device comprising a reservoir containing fluid and a propellant, a metering valve provided with a valve movable between a rest position and an actuating position, said valve being mounted on said reservoir for selectively distributing said fluid product, and a dispensing head assembled on said valve, said dispensing head comprising a dispensing orifice, said dispensing head comprising a connected chamber tightly sealed to said valve, said chamber being isolated from said dispensing orifice in valve actuation position and being connected to said dispensing orifice in rest position of said valve, so that the dose of product is dispensed when the valve returns from its actuating position to its rest position, the dispensing head being produced in two parts, a fixed part, fixed relative to the reservoir, and a mobile part.
  • the fixed part of the dispensing head comprises the dispensing orifice
  • the movable part comprises the chamber, said movable part forming the actuating element of the valve.
  • said valve of the metering valve has an inlet port and an outlet port, said outlet port being connected to said chamber of the dispensing head, said inlet port being connected to said reservoir in the actuation position. of the valve to allow loading of the dose of fluid, and being isolated from said reservoir in the valve rest position.
  • valve inlet orifice is sealed in the valve rest position, the chamber of the dispensing head having an expulsion opening which is sealed in the valve actuation position. and which is connected to said dispensing orifice in the valve rest position, so that the fluid product is expelled out of the chamber through said expulsion opening when the valve returns to its rest position.
  • said expulsion opening comprises a shutter.
  • said shutter is disposed between the fixed part and the movable part of the dispensing head.
  • the shutter comprises a shutter element disposed in a housing of the movable part provided downstream of the expulsion opening of the chamber, said shutter element cooperating with the fixed part of the dispensing head of such so that as soon as the valve, together with the movable part of the dispensing head, is moved out of its rest position, said element shutter is biased towards a shutter position of the chamber discharge opening.
  • the closure element in the valve rest position, cooperates with a recess in the fixed part of the dispensing head, said recess being connected to said dispensing orifice and comprising means for passing fluid, such as grooves, so that the closure element opens the expulsion opening from the chamber, allow the fluid contained in said chamber to be expelled towards the dispensing orifice, via said passage means of fluid of said recess.
  • said closure element is a spherical element, such as a ball.
  • said valve comprises an elastic element, such as a spring, which biases the valve towards its rest position.
  • said inlet port of the valve is connected to said dispensing port of the dispensing head in the valve rest position, so that the fluid product is expelled out of the chamber through said inlet port of the valve when it returns to its rest position.
  • FIG. 1 is a schematic cross-sectional view of a fluid dispenser device, in the rest position
  • Figure 2 is a view similar to that of Figure 1, in the actuating position;
  • FIG. 3 is a view similar to those of Figures 1 and 2, in the product expulsion position; and - Figure 4 is a schematic cross-sectional view of an advantageous embodiment of the present invention, in the rest position.
  • the dispensing device comprises a reservoir 10, which is shown diagrammatically in FIG. 4, and a valve 20 mounted on said reservoir.
  • the valve 20 can be mounted on the reservoir by means of a crimping cap 15, or any other suitable fixing element.
  • the exemplary embodiments shown in the drawings show a dispensing device usable in the inverted position, that is to say with the reservoir 10 disposed above the valve 20, but the present invention is also applicable to the fluid dispenser device operating in an upright position, that is to say with the valve 20 disposed above the tank
  • a dispensing head 30 is mounted on the valve 20, and in particular on the valve 21 of the valve 20, for actuating the latter in order to dispense the product contained in the reservoir 10.
  • the dispensing head 30 comprises a chamber 35 which is tightly connected to the valve 21, said chamber being moreover connected to the dispensing orifice 31 in a position of the valve 21, and isolated from said dispensing orifice 31 in a another position of the valve 21.
  • the valve 21 of the valve 20 is advantageously urged by an elastically element such as a spring 22, which is assembled between the valve 21 and a valve body 25, towards its rest position in which the valve 21 extends as far as possible outside the valve body 25. In this rest position, shown in FIGS. 1 and 4, the valve 21 is not connected with the interior of the tank, so that the contents of the tank are completely isolated from the outside, thus preventing any risk of leakage, even during a relatively long storage time.
  • valve 21 slides inside. of the valve body, against the force of the spring 22, until that it is connected with the interior of the reservoir 10. More specifically, the valve 21 has an inlet orifice 25 which, in the valve rest position, is isolated from the reservoir 10, and which in the actuation position of the valve 21, is connected to said reservoir, thus allowing the product and the propellant to enter the interior of the valve via this inlet orifice 25.
  • the valve further comprises an outlet orifice 26 which is tightly connected to said chamber 35.
  • the valve 21 when the user actuates the device, the valve 21 is pressed inside the valve and the product can enter the chamber 35 by passing through the inlet orifice 25 of the valve.
  • the volume of the dose is therefore defined by the volume of the chamber 35 as well as the volume of the valve 21 defined between the inlet port 25 and the outlet port 26.
  • a modification of the volume of the metering chamber of the valve according to the present invention is therefore very easy to produce, by modifying either the volume of the chamber 35 or the dimension of the valve 21, which can be carried out very simply and inexpensively.
  • the actuating position of the valve 21 therefore corresponds to the position in which the dose is loaded inside the chamber 35.
  • the valve 21 is brought back in the direction from its rest position by the spring 22.
  • the interior of the valve 21 and of the chamber 35 are connected with the dispensing orifice 31, so that the expulsion of the product is performed at this time, that is to say when the valve 21 returns from its actuation position to its rest position.
  • the operation of the valve of the present invention is therefore reversed compared to that of conventional metering valves, in which the expulsion distribution of the product is carried out when the valve is pressed inside the valve.
  • Figures 1 to 3 show an exemplary embodiment, in which the inlet orifice 25 of the valve 21 is connected to the dispensing orifice 31 of the dispensing head 30 in the rest position of the valve. Consequently, the product contained inside the chamber 35 and the valve 21 is expelled towards the dispensing orifice 31 through this inlet orifice 25 of the valve 21.
  • the dispensing head 30 can be produced in a single monobloc piece which incorporates both the chamber 35 and the dispensing orifice 31. This particular embodiment is not covered by the invention.
  • the head 30 may also include a flange 39 which is adapted to define at least partially the expulsion channel leading from the inlet orifice 25 of the valve 21 to the dispensing orifice 31 of the dispensing head 30.
  • This flange 33 is particularly useful in the case of a fixing capsule 15, in order to prevent product from settling and stagnating around the fixing capsule 15, rather than be expelled in the direction of the dispensing orifice 31.
  • FIG. 3, which shows the product dispensing position schematically illustrates by the three dotted lines the expulsion of the fluid by means of the propellant and the function of the guide wall flange 39.
  • valve 20 The structure of the valve 20 is greatly simplified, this latter comprising an approximately cylindrical body 25 containing a spring 22 which cooperates with the valve 21.
  • a valve seal 17 is of course interposed between the valve body 25 and the valve 21 for guarantee the tightness of the valve 20.
  • the valve body 25 no longer incorporates a metering chamber, so that it is no longer necessary to provide another dynamic seal around the valve 21 to define a sealing between the contents of the reservoir 10 and the metering chamber.
  • the sealed connection between the valve 21 and the chamber 35, in particular at the outlet orifice 26 of the valve 21 is a static seal, since the dispensing head 30, at least the part of the head distribution 30 which is assembled on the valve 21, moves together with the latter, these two elements having no relative movement between them. Sealing is therefore simplified. Likewise, the risk of leakage or blockage of the valve 21 is minimized by the use of a single dynamic seal 17.
  • Figure 4 shows an advantageous embodiment of the present invention.
  • the dispensing head 30 is made in two parts, namely a fixed part 32, fixed relative to the reservoir 10, and a mobile part 33.
  • this mobile part 33 incorporates the chamber 35 and forms the actuating part of the dispensing head, while the fixed part 32 incorporates the dispensing orifice 31.
  • the fixed part 32 can be fixed, for example, on the fixing capsule 15, as shown in FIG. 4.
  • the device of FIG. 4 differs mainly from the device of FIGS. 1 to 3, in that the expulsion of the product contained in the chamber 35 is not carried out through the inlet orifice of the valve 21, but through an expulsion opening 36 produced in said chamber 35.
  • the inlet orifice 25 of the valve 21 is therefore not in communication with the dispensing orifice 31 in the valve's rest position, but on the contrary closed by tightly, - for example by the valve seal 17 as shown in FIG. 4.
  • the expulsion opening 36 from the chamber 35 may include a shutter 40 which is adapted to close said expulsion opening 36 in all positions except in p valve rest position.
  • the shutter 40 seals the expulsion opening 36 in a sealed manner so that when the chamber 35 is filled with the product, it is isolated from the dispensing orifice 31 and the metering can be carried out effectively. It is only when the valve 21 returns to its rest position that the shutter 40 can open said expulsion opening 36 and allow the product to be dispensed in the direction of the dispensing orifice 31.
  • the shutter 40 comprises a shutter element 41 which is disposed in a housing 37 produced downstream of the expulsion opening 36 from the chamber 35.
  • This shutter element 41 further cooperates with the fixed part 32 of the dispensing head 30 so that it is biased in the closed position as soon as the valve 21 is moved out of its rest position.
  • the fixed part 32 advantageously comprises a recess 38 allowing the closure element 41 to move away from its closure position in order to allow the expulsion of the product contained in the chamber 35 towards the orifice of distribution 31.
  • this recess 38 of the fixed part comprises means for passing the product, for example made in the form of grooves, allowing the product to pass despite the presence of. the closure element 41.
  • this closure element is produced in a spherical form, for example in the form of a ball, the latter allowing the product to pass when the device is in the rest position as explained above.
  • the presence of the shutter 40 has the particular advantage of substantially isolating the interior of the chamber 35 and of the valve 21, after dispensing the dose of product. It is conceivable to provide that the closure element 41 is urged towards its closure position, for example by elastic means, which would be sufficient to prevent contamination of the interior of the chamber - 35 the environment, but which obviously would not prevent the expulsion of the dose of product when the valve 21 returns to its rest position.

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

Abstract

The invention concerns a fluid product dispensing device comprising a reservoir (10) containing the fluid product and a propellant, a metering valve (20) provided with a plug (21) mobile between an inactive position and an actuating position, said valve (20) being mounted on said reservoir (10) for selectively dispensing the fluid product, and a dispensing head (30) assembled on said valve (20), said dispensing head (30) comprising a dispensing orifice (31), said dispensing head (30) comprising a chamber (35) in sealed connection with said plug (21), said chamber (35) being isolated from said dispensing orifice (31) when the valve (20) is in actuating position, such that the dose of product is dispensed when the plug (21) returns from its actuating position to its inactive position. The invention is characterized in that the dispensing head (30) is made in two parts, a fixed part (32) stationary relative to the reservoir (10), and a mobile part (33).

Description

Dispositif de distribution de produit fluide Fluid product dispensing device
La présente invention concerne un dispositif de distribution de produit fluide, et plus particulièrement un dispositif de distribution de produit fluide dans lequel le produit fluide est expulsé à l'aide d'un propulseur, au moyen d'une valve doseuse.The present invention relates to a fluid product distribution device, and more particularly to a fluid product distribution device in which the fluid product is expelled using a propellant, by means of a metering valve.
Les distributeurs utilisant un propulseur, et notamment un gaz propulseur, pour distribuer le produit fluide sont bien connus dans l'état de la technique, us comportent généralement un réservoir dans lequel sont disposés le produit fluide et le propulseur, une valve étant montée sur ledit réservoir. La valve comporte une soupape que l'on actionne, c'est à dire que l'on enfonce pour distribuer du produit. Dans le cas des valves doseuses, la valve comporte une chambre de dosage, de sorte que lors de l'actionnement de la soupape, seul le contenu de ladite chambre de dosage est expulsé à travers la valve. La valve doseuse implique donc une structure relativement complexe pour définir la chambre de dosage, et obtenir son étanchéité. L'expulsion est réalisée lors de l'actionnement de la soupape, et le remplissage de la chambre de dosage se fait lors du retour de la soupape vers sa position de repos.Distributors using a propellant, and in particular a propellant gas, for dispensing the fluid product are well known in the state of the art, they generally include a reservoir in which the fluid product and the propellant are disposed, a valve being mounted on said tank. The valve includes a valve that is actuated, that is to say that is pressed to dispense product. In the case of metering valves, the valve has a metering chamber, so that upon actuation of the valve, only the contents of said metering chamber are expelled through the valve. The metering valve therefore involves a relatively complex structure for defining the metering chamber and obtaining its tightness. Expulsion is carried out when the valve is actuated, and the metering chamber is filled when the valve returns to its rest position.
Les documents US-3 858 771 et US-3 231 150 divulguent des valves doseuse conformément au préambule de la revendication 1. La présente invention a pour but de réaliser une valve doseuse qui soit plus simple et moins coûteuse à fabriquer et à assembler.Documents US-3,858,771 and US-3,231,150 disclose metering valves in accordance with the preamble of claim 1. The object of the present invention is to provide a metering valve which is simpler and less costly to manufacture and assemble.
En particulier, la présente invention a pour but de réaliser une valve doseuse qui fonctionne de manière sûre et fiable, et qui limite au maximum tout risque de dysfonctionnement de la valve. La présente invention a donc pour objet un dispositif de distribution de produit fluide comportant un réservoir contenant du produit fluide et un propulseur, une valve doseuse pourvue d'une soupape mobile entre une position de repos et une position d'actionnement, ladite valve étant montée sur ledit réservoir pour distribuer sélectivement ledit produit fluide, et une tête de distribution assemblée sur ladite valve, ladite tête de distribution comportant un orifice de distribution, ladite tête de distribution comportant une chambre reliée de manière étanche à ladite soupape, ladite chambre étant isolée dudit orifice de distribution en position d'actionnement de la soupape et étant reliée audit orifice de distribution en position de repos de ladite soupape, de sorte que la dose de produit est distribuée lorsque la soupape revient de sa position d'actionnement vers sa position de repos, la tête de distribution étant réalisée en deux parties, une partie fixe, fixe par rapport au réservoir, et une partie mobile.In particular, the object of the present invention is to provide a metering valve which operates in a safe and reliable manner, and which minimizes any risk of valve malfunction. The present invention therefore relates to a fluid dispensing device comprising a reservoir containing fluid and a propellant, a metering valve provided with a valve movable between a rest position and an actuating position, said valve being mounted on said reservoir for selectively distributing said fluid product, and a dispensing head assembled on said valve, said dispensing head comprising a dispensing orifice, said dispensing head comprising a connected chamber tightly sealed to said valve, said chamber being isolated from said dispensing orifice in valve actuation position and being connected to said dispensing orifice in rest position of said valve, so that the dose of product is dispensed when the valve returns from its actuating position to its rest position, the dispensing head being produced in two parts, a fixed part, fixed relative to the reservoir, and a mobile part.
Avantageusement, la partie fixe de la tête de distribution comporte l'orifice de distribution, et la partie mobile comporte la chambre, ladite partie mobile formant l'élément d'actionnement de la valve. De préférence, ladite soupape de la valve doseuse comporte un orifice d'entrée et un orifice de sortie, ledit orifice de sortie étant relié à ladite chambre de la tête de distribution, ledit orifice d'entrée étant relié audit réservoir en position d'actionnement de la soupape pour permettre le chargement de la dose de produit fluide, et étant isolé dudit réservoir en position de repos de la soupape.Advantageously, the fixed part of the dispensing head comprises the dispensing orifice, and the movable part comprises the chamber, said movable part forming the actuating element of the valve. Preferably, said valve of the metering valve has an inlet port and an outlet port, said outlet port being connected to said chamber of the dispensing head, said inlet port being connected to said reservoir in the actuation position. of the valve to allow loading of the dose of fluid, and being isolated from said reservoir in the valve rest position.
Avantageusement, ledit orifice d'entrée de la soupape est obturé de manière étanche en position de repos de la soupape, la chambre de la tête de distribution comportant une ouverture d'expulsion qui est obturée de manière étanche en position d'actionnement de la soupape et qui est reliée audit orifice de distribution en position de repos de la soupape, de sorte que le produit fluide est expulsé hors de la chambre à travers ladite ouverture d'expulsion lorsque la soupape revient vers sa position de repos.Advantageously, said valve inlet orifice is sealed in the valve rest position, the chamber of the dispensing head having an expulsion opening which is sealed in the valve actuation position. and which is connected to said dispensing orifice in the valve rest position, so that the fluid product is expelled out of the chamber through said expulsion opening when the valve returns to its rest position.
Avantageusement, ladite ouverture d'expulsion comporte un obturateur. Avantageusement, ledit obturateur est disposé entre la partie fixe et la partie mobile de la tête de distribution.Advantageously, said expulsion opening comprises a shutter. Advantageously, said shutter is disposed between the fixed part and the movable part of the dispensing head.
Avantageusement, l'obturateur comporte un élément d'obturation disposé dans un logement de la partie mobile prévu en aval de l'ouverture d'expulsion de la chambre, ledit élément d'obturation coopérant avec la partie fixe de la tête de distribution de telle sorte que dès que la soupape, ensemble avec la partie mobile de la tête de distribution, est déplacée hors de sa position de repos, ledit élément d'obturation est sollicité vers une position d'obturation de l'ouverture d'expulsion de la chambre.Advantageously, the shutter comprises a shutter element disposed in a housing of the movable part provided downstream of the expulsion opening of the chamber, said shutter element cooperating with the fixed part of the dispensing head of such so that as soon as the valve, together with the movable part of the dispensing head, is moved out of its rest position, said element shutter is biased towards a shutter position of the chamber discharge opening.
Avantageusement, en position de repos de la soupape, l'élément d'obturation coopère avec un évidement de la partie fixe de la tête de distribution, ledit évidement étant relié audit orifice de distribution et comportant des moyens de passage de fluide, tels que des rainures, de telle sorte que l'élément d'obturation ouvre l'ouverture d'expulsion de la chambre, permettent au produit fluide contenu dans ladite chambre d'être expulsé en direction de l'orifice de distribution, via lesdits moyens de passage de fluide dudit évidement. _Advantageously, in the valve rest position, the closure element cooperates with a recess in the fixed part of the dispensing head, said recess being connected to said dispensing orifice and comprising means for passing fluid, such as grooves, so that the closure element opens the expulsion opening from the chamber, allow the fluid contained in said chamber to be expelled towards the dispensing orifice, via said passage means of fluid of said recess. _
Avantageusement, ledit élément d'obturation est un élément sphérique, tel qu'une bille.Advantageously, said closure element is a spherical element, such as a ball.
De préférence, ladite valve comporte un élément élastique, tel qu'un ressort, qui sollicite la soupape vers sa position de repos. Avantageusement, ledit orifice d'entrée de la soupape est relié audit orifice de distribution de la tête de distribution en position de repos de la soupape, de sorte que le produit fluide est expulsé hors de la chambre à travers ledit orifice d'entrée de la soupape lorsque celle-ci revient vers sa position de repos. D'autres caractéristiques et avantages de la présente invention apparaîtront plus clairement au cours de la description détaillée suivante de deux modes de réalisation de celle-ci, faite en référence aux dessins joints, donnés à titre d'exemples non hrnitatifs, et sur lesquels :Preferably, said valve comprises an elastic element, such as a spring, which biases the valve towards its rest position. Advantageously, said inlet port of the valve is connected to said dispensing port of the dispensing head in the valve rest position, so that the fluid product is expelled out of the chamber through said inlet port of the valve when it returns to its rest position. Other characteristics and advantages of the present invention will appear more clearly during the following detailed description of two embodiments thereof, made with reference to the accompanying drawings, given by way of non-illustrative examples, and in which:
- la figure 1 est une vue schématique en section transversale d'un dispositif de distribution de produit fluide, en position de repos ;- Figure 1 is a schematic cross-sectional view of a fluid dispenser device, in the rest position;
- la figure 2 est une vue similaire à celle de la figure 1, en position d'actionnement ;- Figure 2 is a view similar to that of Figure 1, in the actuating position;
- la figure 3 est une vue similaire à celles des figures 1 et 2, en position d'expulsion de produit ; et - la figure 4 est une vue schématique en section transversale d'un mode de réalisation avantageux de la présente invention, en position de repos.- Figure 3 is a view similar to those of Figures 1 and 2, in the product expulsion position; and - Figure 4 is a schematic cross-sectional view of an advantageous embodiment of the present invention, in the rest position.
En référence aux figures, le dispositif de distribution comporte un réservoir 10, qui est représenté schématiquement sur la figure 4, et une valve 20 montée sur ledit réservoir. La valve 20 peut être montée sur le réservoir au moyen d'une capsule à sertir 15, ou tout autre élément de fixation approprié. Il est à noter que les exemples de réalisation représentés sur les dessins montrent un dispositif de distribution utilisable en position inversée, c'est à dire avec -le réservoir 10 disposé au-dessus de la valve 20, mais la présente invention est également applicable au dispositif de distribution de produit fluide fonctionnant en position droite, c'est à dire avec la valve 20 disposée au-dessus du réservoirWith reference to the figures, the dispensing device comprises a reservoir 10, which is shown diagrammatically in FIG. 4, and a valve 20 mounted on said reservoir. The valve 20 can be mounted on the reservoir by means of a crimping cap 15, or any other suitable fixing element. It should be noted that the exemplary embodiments shown in the drawings show a dispensing device usable in the inverted position, that is to say with the reservoir 10 disposed above the valve 20, but the present invention is also applicable to the fluid dispenser device operating in an upright position, that is to say with the valve 20 disposed above the tank
10.10.
Une tête de distribution 30 est montée sur la valve 20, et en particulier sur la soupape 21 de la valve 20, pour actionner cette dernière afin de distribuer du produit contenu dans le réservoir 10.A dispensing head 30 is mounted on the valve 20, and in particular on the valve 21 of the valve 20, for actuating the latter in order to dispense the product contained in the reservoir 10.
La tête de distribution 30 comporte une chambre 35 qui est reliée de manière étanche à la soupape 21, ladite chambre étant par ailleurs reliée à l'orifice de distribution 31 dans une position de la soupape 21, et isolée dudit orifice de distribution 31 dans une autre position de la soupape 21. Plus précisément, la soupape 21 de la valve 20 est avantageusement sollicitée par un élément élastiquement tel qu'un ressort 22, qui est assemblé entre la soupape 21 et un corps de valve 25, vers sa position de repos dans laquelle la soupape 21 s'étend de manière maximale hors du corps de valve 25. Dans cette position de repos, représentée sur les figures 1 et 4, la soupape 21 n'est pas reliée avec l'intérieur du réservoir, de sorte que la contenu du réservoir est complètement isolé de l'extérieur, empêchant ainsi tout risque de fuite, même pendant un temps de stockage relativement long. Lorsque l'utilisateur actionne le dispositif, c'est à dire qu'il appuie sur la tête de distribution 30 pour déplacer la soupape 21 hors de sa position de repos, vers une position d'actionnement, la soupape 21 coulisse à l'intérieur du corps de valve, contre la force du ressort 22, jusqu'à ce que elle soit mise en liaison avec l'intérieur du réservoir 10. Plus précisément, la soupape 21 comporte un orifice d'entrée 25 qui, en position de repos de la soupape, est isolé du réservoir 10, et qui en position d'actionnement de la soupape 21, est relié audit réservoir, permettant ainsi au produit et au propulseur de pénétrer à l'intérieur de la soupape par l'intermédiaire de cet orifice d'entrée 25. La soupape comporte en outre un orifice de sortie 26 qui est connecté de manière étanche à ladite chambre 35. Ainsi, lorsque l'utilisateur actionne le dispositif, la soupape 21 est enfoncée à l'intérieur de la valve et le produit peut pénétrer dans la chambre 35 en passant à travers l'orifice d'entrée 25 de la soupape. Le volume de la dose est donc défini par le volume de la chambre 35 ainsi que le volume de la soupape 21 défini entre l'orifice d'entrée 25 et l'orifice de sortie 26. Une modification du volume de la chambre de dosage de la valve selon la présente invention est donc très facile à réaliser, en modifiant soit le volume de la chambre 35, soit la dimension de la soupape 21, ce qui peut être réalisé de manière très simple et peu coûteuse.The dispensing head 30 comprises a chamber 35 which is tightly connected to the valve 21, said chamber being moreover connected to the dispensing orifice 31 in a position of the valve 21, and isolated from said dispensing orifice 31 in a another position of the valve 21. More precisely, the valve 21 of the valve 20 is advantageously urged by an elastically element such as a spring 22, which is assembled between the valve 21 and a valve body 25, towards its rest position in which the valve 21 extends as far as possible outside the valve body 25. In this rest position, shown in FIGS. 1 and 4, the valve 21 is not connected with the interior of the tank, so that the contents of the tank are completely isolated from the outside, thus preventing any risk of leakage, even during a relatively long storage time. When the user actuates the device, that is to say that he presses on the dispensing head 30 to move the valve 21 out of its rest position, towards an actuation position, the valve 21 slides inside. of the valve body, against the force of the spring 22, until that it is connected with the interior of the reservoir 10. More specifically, the valve 21 has an inlet orifice 25 which, in the valve rest position, is isolated from the reservoir 10, and which in the actuation position of the valve 21, is connected to said reservoir, thus allowing the product and the propellant to enter the interior of the valve via this inlet orifice 25. The valve further comprises an outlet orifice 26 which is tightly connected to said chamber 35. Thus, when the user actuates the device, the valve 21 is pressed inside the valve and the product can enter the chamber 35 by passing through the inlet orifice 25 of the valve. The volume of the dose is therefore defined by the volume of the chamber 35 as well as the volume of the valve 21 defined between the inlet port 25 and the outlet port 26. A modification of the volume of the metering chamber of the valve according to the present invention is therefore very easy to produce, by modifying either the volume of the chamber 35 or the dimension of the valve 21, which can be carried out very simply and inexpensively.
La position d'actionnement de la soupape 21 correspond donc à la position dans laquelle la dose est chargée à l'intérieur de la chambre 35. Lorsque l'utilisateur relâche la pression sur la tête de distribution 30, la soupape 21 est ramenée en direction de sa position de repos par le ressort 22. Lorsqu'elle atteint cette position de repos, l'intérieur de la soupape 21 et de la chambre 35 sont reliés avec l'orifice de distribution 31, de sorte que l'expulsion du produit est réalisée à ce moment là, c'est à dire lorsque la soupape 21 revient de sa position d'actionnement vers sa position de repos. Le fonctionnement de la valve de la présente invention est donc inversé par rapport à celles des valves doseuse classiques, dans lesquelles la distribution d'expulsion du produit est réalisée au moment où la soupape est enfoncée à l'intérieur de la valve.The actuating position of the valve 21 therefore corresponds to the position in which the dose is loaded inside the chamber 35. When the user releases the pressure on the dispensing head 30, the valve 21 is brought back in the direction from its rest position by the spring 22. When it reaches this rest position, the interior of the valve 21 and of the chamber 35 are connected with the dispensing orifice 31, so that the expulsion of the product is performed at this time, that is to say when the valve 21 returns from its actuation position to its rest position. The operation of the valve of the present invention is therefore reversed compared to that of conventional metering valves, in which the expulsion distribution of the product is carried out when the valve is pressed inside the valve.
Les figures 1 à 3 montrent un exemple de réalisation, dans lequel l'orifice d'entrée 25 de la soupape 21 est relié à l'orifice de distribution 31 de la tête de distribution 30 en position de repos de la soupape. Par conséquent, le produit contenu à l'intérieur de la chambre 35 et de la soupape 21 est expulsé en direction de l'orifice de distribution 31 à travers cet orifice d'entrée 25 de la soupape 21. La tête de distribution 30 peut être réalisée en une seule pièce monobloc qui incorpore à la fois la chambre 35 et l'orifice de distribution 31. Cette variante de réalisation particulière n'est pas couverte par l'invention. Comme représenté sur les figures 1 à 3, la tête 30 peut également comporter une bride 39 qui est adaptée à définir au moins partiellement le canal d'expulsion menant de l'orifice d'entrée 25 de la soupape 21 à l'orifice de distribution 31 de la tête de distribution 30. Cette bride 33 est notamment utile dans le cas d'une capsule de fixation 15, afin d'éviter que du produit ne se dépose et stagne autour de la capsule de la fixation 15, plutôt que d'être expulsé en direction de l'orifice de distribution 31. La figure 3, qui montre la position-de distribution de produit, illustre schématiquement par les trois traits pointillés l'expulsion du produit fluide au moyen du propulseur et la fonction de paroi de guidage de la bride 39.Figures 1 to 3 show an exemplary embodiment, in which the inlet orifice 25 of the valve 21 is connected to the dispensing orifice 31 of the dispensing head 30 in the rest position of the valve. Consequently, the product contained inside the chamber 35 and the valve 21 is expelled towards the dispensing orifice 31 through this inlet orifice 25 of the valve 21. The dispensing head 30 can be produced in a single monobloc piece which incorporates both the chamber 35 and the dispensing orifice 31. This particular embodiment is not covered by the invention. As shown in Figures 1 to 3, the head 30 may also include a flange 39 which is adapted to define at least partially the expulsion channel leading from the inlet orifice 25 of the valve 21 to the dispensing orifice 31 of the dispensing head 30. This flange 33 is particularly useful in the case of a fixing capsule 15, in order to prevent product from settling and stagnating around the fixing capsule 15, rather than be expelled in the direction of the dispensing orifice 31. FIG. 3, which shows the product dispensing position, schematically illustrates by the three dotted lines the expulsion of the fluid by means of the propellant and the function of the guide wall flange 39.
La structure de la valve 20 est fortement simplifiée, cehe-ci comportant un corps 25 environ cylindrique contenant un ressort 22 qui coopère avec la soupape 21. Un joint de soupape 17 est bien entendu interposé entre le corps de valve 25 et la soupape 21 pour garantir l'étancheite de la valve 20. Par contre, le corps de valve 25 n'incorpore plus de chambre de dosage, de sorte qu'il n'est plus nécessaire de prévoir un autre joint dynamique autour de la soupape 21 pour définir une étanchéité entre le contenu du réservoir 10 et la chambre de dosage. Au contraire, la liaison étanche entre la soupape 21 et la chambre 35, en particulier au niveau de l'orifice de sortie 26 de la soupape 21, est une étanchéité statique, puisque la tête de distribution 30, au moins la partie de la tête de distribution 30 qui est assemblée sur la soupape 21, se déplace ensemble avec cette dernière, ces deux éléments n'ayant pas de mouvement relatif entre eux. La réalisation de l'étancheite est donc simplifiée. De même, le risque de fuite ou de blocage de la soupape 21 est minimisé de par l'utilisation d'un seul joint dynamique 17.The structure of the valve 20 is greatly simplified, this latter comprising an approximately cylindrical body 25 containing a spring 22 which cooperates with the valve 21. A valve seal 17 is of course interposed between the valve body 25 and the valve 21 for guarantee the tightness of the valve 20. On the other hand, the valve body 25 no longer incorporates a metering chamber, so that it is no longer necessary to provide another dynamic seal around the valve 21 to define a sealing between the contents of the reservoir 10 and the metering chamber. On the contrary, the sealed connection between the valve 21 and the chamber 35, in particular at the outlet orifice 26 of the valve 21, is a static seal, since the dispensing head 30, at least the part of the head distribution 30 which is assembled on the valve 21, moves together with the latter, these two elements having no relative movement between them. Sealing is therefore simplified. Likewise, the risk of leakage or blockage of the valve 21 is minimized by the use of a single dynamic seal 17.
La figure 4 représente un mode de réalisation avantageux de la présente invention. Selon l'invention, la tête de distribution 30 est réalisée en deux parties, à savoir une partie fixe 32, fixe par rapport au réservoir 10, et une partie mobile 33. De préférence, cette partie mobile 33 incorpore la chambre 35 et forme la partie d'actionnement de la tête de distribution, alors que la partie fixe 32 incorpore l'orifice de distribution 31. La partie fixe 32 peut être fixée par exemple sur la capsule de fixation 15, comme représenté sur la figure 4.Figure 4 shows an advantageous embodiment of the present invention. According to the invention, the dispensing head 30 is made in two parts, namely a fixed part 32, fixed relative to the reservoir 10, and a mobile part 33. Preferably, this mobile part 33 incorporates the chamber 35 and forms the actuating part of the dispensing head, while the fixed part 32 incorporates the dispensing orifice 31. The fixed part 32 can be fixed, for example, on the fixing capsule 15, as shown in FIG. 4.
Le dispositif de la figure 4 diffère principalement du dispositif des figures 1 à 3, en ce que l'expulsion du produit contenu dans la chambre 35 n'est pas réalisée à travers l'orifice d'entrée de la soupape 21, mais à travers une ouverture d'expulsion 36 réalisée dans ladite chambre 35. L'orifice d'entrée 25 de la soupape 21 n'est donc pas en communication avec l'orifice de distribution 31 en position de repos de la soupape, mais au contraire obturé de manière étanche, - par- exemple par le joint de soupape 17 comme représenté sur la figure 4. Pour éviter que, lorsque la soupape 21 est déplacée vers sa position d'actionnement, qui correspond à la position de chargement de dose, le produit contenu à l'intérieur du réservoir 10 soit directement expulsé en direction de l'orifice de distribution 31, l'ouverture d'expulsion 36 de la chambre 35 peut comporter un obturateur 40 qui est adapté à obturer ladite ouverture d'expulsion 36 dans toutes les positions sauf en position de repos de la valve. Ainsi, dès que l'utilisateur déplace la soupape 21 de sa position de repos vers sa position d'actionnement, l'obturateur 40 obture de manière étanche l'ouverture d'expulsion 36 de sorte qu'au moment où la chambre 35 se remplie avec le produit, elle est isolée de l'orifice de distribution 31 et le dosage peut être réalisé de manière efficace. C'est seulement lorsque la soupape 21 revient vers sa position de repos que l'obturateur 40 peut ouvrir ladite ouverture d'expulsion 36 et permettre la distribution du produit en direction de l'orifice de distribution 31.The device of FIG. 4 differs mainly from the device of FIGS. 1 to 3, in that the expulsion of the product contained in the chamber 35 is not carried out through the inlet orifice of the valve 21, but through an expulsion opening 36 produced in said chamber 35. The inlet orifice 25 of the valve 21 is therefore not in communication with the dispensing orifice 31 in the valve's rest position, but on the contrary closed by tightly, - for example by the valve seal 17 as shown in FIG. 4. To avoid that, when the valve 21 is moved towards its actuation position, which corresponds to the dose loading position, the product contained inside the tank 10 is directly expelled in the direction of the dispensing orifice 31, the expulsion opening 36 from the chamber 35 may include a shutter 40 which is adapted to close said expulsion opening 36 in all positions except in p valve rest position. Thus, as soon as the user moves the valve 21 from its rest position to its actuation position, the shutter 40 seals the expulsion opening 36 in a sealed manner so that when the chamber 35 is filled with the product, it is isolated from the dispensing orifice 31 and the metering can be carried out effectively. It is only when the valve 21 returns to its rest position that the shutter 40 can open said expulsion opening 36 and allow the product to be dispensed in the direction of the dispensing orifice 31.
Selon une variante de réalisation avantageuse, l'obturateur 40 comporte un élément d'obturation 41 qui est disposé dans un logement 37 réalisé en aval de l'ouverture d'expulsion 36 de la chambre 35. Cet élément d'obturation 41 coopère en outre avec la partie fixe 32 de la tête de distribution 30 de telle sorte qu'il est sollicité en position d'obturation dès que la soupape 21 est déplacée hors de sa position de repos. Ceci est notamment réalisé dans l'exemple représenté sur la figure 4 par une paroi de la partie fixe 32 qui pousse l'élément d'obturation 41 contre l'ouverture d'expulsion 36 afin de l'obturer. Au contraire, en position de repos, la partie fixe 32 comporte avantageusement un évidement 38 permettant à l'élément d'obturation 41 de s'écarter de sa position d'obturation afin de permettre l'expulsion du produit contenu dans la chambre 35 en direction de l'orifice de distribution 31. Avantageusement, cet évidement 38 de la partie fixe comporte des moyens de passage de produit, par exemple réalisés sous la forme de rainures, permettant au produit de passer malgré la présence de. lîélément d'obturation 41. De préférence, cet élément d'obturation est réalisé sous une forme sphérique, par exemple sous la forme d'une bille, celle-ci laissant passer le produit lorsque le dispositif est en position de repos comme expliqué précédemment.According to an advantageous alternative embodiment, the shutter 40 comprises a shutter element 41 which is disposed in a housing 37 produced downstream of the expulsion opening 36 from the chamber 35. This shutter element 41 further cooperates with the fixed part 32 of the dispensing head 30 so that it is biased in the closed position as soon as the valve 21 is moved out of its rest position. This is achieved in particular in the example shown in FIG. 4 by a wall of the fixed part 32 which pushes the closure element 41 against the expulsion opening 36 in order to close it. On the contrary, in the position of rest, the fixed part 32 advantageously comprises a recess 38 allowing the closure element 41 to move away from its closure position in order to allow the expulsion of the product contained in the chamber 35 towards the orifice of distribution 31. Advantageously, this recess 38 of the fixed part comprises means for passing the product, for example made in the form of grooves, allowing the product to pass despite the presence of. the closure element 41. Preferably, this closure element is produced in a spherical form, for example in the form of a ball, the latter allowing the product to pass when the device is in the rest position as explained above.
La présence de l'obturateur 40 a notamment pour avantage de sensiblement isoler l'intérieur de la chambre 35 et de la soupape 21, après distribution de la dose de produit. Il est envisageable de prévoir que l'élément d'obturation 41 soit sollicité vers sa position d'obturation, par exemple par des moyens élastiques, qui seraient suffisants pour empêcher une contamination de l'intérieur de la chambre - 35 par l'air de l'environnement, mais qui n'empêcheraient évidemment pas l'expulsion de la dose de produit lorsque la soupape 21 revient vers sa position de repos.The presence of the shutter 40 has the particular advantage of substantially isolating the interior of the chamber 35 and of the valve 21, after dispensing the dose of product. It is conceivable to provide that the closure element 41 is urged towards its closure position, for example by elastic means, which would be sufficient to prevent contamination of the interior of the chamber - 35 the environment, but which obviously would not prevent the expulsion of the dose of product when the valve 21 returns to its rest position.
Bien que l'invention ait été décrite en référence à un mode de réalisation avantageux de celle-ci, il est clair qu'elle n'est pas limitée à ce mode de réalisation, mais au contraire un homme du métier peut y apporter toutes modifications nécessaires sans sortir du cadre de la présente invention tel que défini par les revendications annexées. Although the invention has been described with reference to an advantageous embodiment thereof, it is clear that it is not limited to this embodiment, but on the contrary a person skilled in the art can make any modifications to it. necessary without departing from the scope of the present invention as defined by the appended claims.

Claims

Revendications claims
1.- Dispositif de distribution de produit fluide comportant un réservoir (10) contenant du produit fluide et un propulseur, une valve doseuse (20) pourvue d'une soupape (21) mobile entre une position de repos et une position d'actionnement, ladite valve (20) étant montée sur ledit réservoir (10) pour distribuer sélectivement ledit produit fluide, et une tête de distribution (30) assemblée sur ladite valve (20), ladite tête de distribution (30) comportant un orifice de disttibution (31), ladite tête de distribution (30) comportant une chambre (35) reliée de manière étanche .à ladite soupape (21), ladite chambre (35) étant isolée dudit orifice de distribution (31) en position d'actionnement de la -soupape (21) et étant reliée audit orifice de distribution (31) en position de repos de ladite soupape (21), de sorte que la dose de produit est distribuée lorsque la soupape (21) revient de sa position d'actionnement vers sa position de repos, caractérisé en ce que la tête de disttibution (30) est réalisée en deux parties, une partie fixe (32), fixe par rapport au réservoir (10), et une partie mobile (33).1.- Device for dispensing fluid product comprising a reservoir (10) containing fluid product and a propellant, a metering valve (20) provided with a valve (21) movable between a rest position and an actuation position, said valve (20) being mounted on said reservoir (10) for selectively dispensing said fluid, and a dispensing head (30) assembled on said valve (20), said dispensing head (30) comprising a dispensing orifice (31 ), said dispensing head (30) comprising a chamber (35) sealingly connected to said valve (21), said chamber (35) being isolated from said dispensing orifice (31) in the actuation position of the valve (21) and being connected to said dispensing orifice (31) in the rest position of said valve (21), so that the dose of product is dispensed when the valve (21) returns from its actuation position to its position of rest, characterized in that the head distribution (30) is made in two parts, a fixed part (32), fixed relative to the tank (10), and a movable part (33).
2.- Dispositif selon la revendication 1, dans lequel la partie fixe (32) de la tête de distribution (30) comporte l'orifice de disttibution (31), et la partie mobile (33) comporte la chambre (35), ladite partie mobile (33) formant l'élément d'actionnement de la valve (20).2.- Device according to claim 1, wherein the fixed part (32) of the dispensing head (30) comprises the distribution orifice (31), and the movable part (33) comprises the chamber (35), said movable part (33) forming the actuating element of the valve (20).
3.- Dispositif selon la revendication 1 ou 2, dans lequel ladite soupape (21) de la valve doseuse (20) comporte un orifice d'entrée (25) et un orifice de sortie (26), ledit orifice de sortie (26) étant relié à ladite chambre (35) de la tête de distribution (30), ledit orifice d'entrée (25) étant relié audit réservoir (10) en position d'actionnement de la soupape (21) pour permettre le chargement de la dose de produit fluide, et étant isolé dudit réservoir (10) en position de repos de la soupape (21).3.- Device according to claim 1 or 2, wherein said valve (21) of the metering valve (20) has an inlet (25) and an outlet (26), said outlet (26) being connected to said chamber (35) of the dispensing head (30), said inlet orifice (25) being connected to said reservoir (10) in the actuation position of the valve (21) to allow loading of the dose of fluid, and being isolated from said reservoir (10) in the rest position of the valve (21).
4.- Dispositif selon la revendication 3, dans lequel ledit orifice d'entrée (25) de la soupape (21) est obturé de manière étanche en position de repos de la soupape (21), la chambre (35) de la tête de distribution (30) comportant une ouverture d'expulsion (36) qui est obturée de manière étanche en position d'actionnement de la soupape (21) et qui est reliée audit orifice de disttibution (31) en position de repos de la soupape (21), de sorte que le produit fluide est expulsé hors de la chambre (35) à travers ladite ouverture d'expulsion (36) lorsque la soupape revient vers sa position de repos.4.- Device according to claim 3, wherein said inlet port (25) of the valve (21) is sealed in position valve rest (21), the chamber (35) of the dispensing head (30) having an expulsion opening (36) which is sealed in the actuation position of the valve (21) and which is connected to said dispensing orifice (31) in the rest position of the valve (21), so that the fluid is expelled from the chamber (35) through said expulsion opening (36) when the valve returns to its rest position.
5.- Dispositif selon la revendication 4, dans lequel ladite ouverture d'expulsion (36) comporte un obturateur (40). " 6.- Dispositif selon la revendication 5, dans lequel ledit obturateur5.- Device according to claim 4, wherein said expulsion opening (36) comprises a shutter (40). " 6.- Device according to claim 5, wherein said shutter
(40) est disposé entre la partie fixe (32) et la partie mobile (33) de la tête de disttibution (30).(40) is disposed between the fixed part (32) and the movable part (33) of the distribution head (30).
7.- Dispositif selon la revendication 6, dans lequel l'obturateur (40) comporte un élément d'obturation (41) disposé dans un logement (37) de la partie mobile (33) prévu en aval de l'ouverture d'expulsion (36) de la7.- Device according to claim 6, wherein the shutter (40) comprises a shutter element (41) disposed in a housing (37) of the movable part (33) provided downstream of the expulsion opening (36) of the
- chambre (35), ledit élément d'obturation (41) coopérant avec la partie fixe- chamber (35), said closure element (41) cooperating with the fixed part
(32) de la tête de distribution (30) de telle sorte que dès que la soupape (21), ensemble avec la partie mobile (33) de la tête de disttibution (30), est déplacée hors de sa position de repos, ledit élément d'obturation (41) est sollicité vers une position d'obturation de l'ouverture d'expulsion (36) de la chambre (35).(32) of the dispensing head (30) so that as soon as the valve (21), together with the movable part (33) of the dispensing head (30), is moved out of its rest position, said closure element (41) is urged towards a position for closing the expulsion opening (36) of the chamber (35).
8.- Dispositif selon la revendication 7, dans lequel, en position de repos de la soupape (21), l'élément d'obturation (41) coopère avec un évidement (38) de la partie fixe (32) de la tête de disttibution (30), ledit évidement (38) étant relié audit orifice de disttibution (31) et comportant des moyens de passage de fluide, tels que des rainures, de telle sorte que l'élément d'obturation (41) ouvre l'ouverture d'expulsion (36) de la chambre (35), permettent au produit fluide contenu dans ladite chambre (35) d'être expulsé en direction de l'orifice de distribution (31), via lesdits moyens de passage de fluide dudit évidement (38). 8.- Device according to claim 7, wherein, in the rest position of the valve (21), the closure element (41) cooperates with a recess (38) of the fixed part (32) of the head. distribution (30), said recess (38) being connected to said distribution orifice (31) and comprising fluid passage means, such as grooves, so that the closure element (41) opens the opening expulsion (36) from the chamber (35), allow the fluid contained in said chamber (35) to be expelled towards the dispensing orifice (31), via said fluid passage means of said recess ( 38).
9.- Dispositif selon la revendication 7 ou 8, dans lequel ledit élément d'obturation (41) est un élément sphérique, tel qu'une bille.9.- Device according to claim 7 or 8, wherein said closure element (41) is a spherical element, such as a ball.
10.- Dispositif selon l'une quelconque des revendications précédentes, dans lequel ladite valve (20) comporte un élément élastique (22), tel qu'un ressort, qui sollicite la soupape (21) vers sa position de repos.10.- Device according to any one of the preceding claims, wherein said valve (20) comprises an elastic element (22), such as a spring, which biases the valve (21) towards its rest position.
11.- Dispositif selon l'une quelconque des revendications précédentes, dans lequel ledit orifice d'entrée (25) de la soupape (21) est relié audit orifice de disttibution (31) de la tête de distribution (30) en position de repos de la soupape (21), de sorte que le produit fluide est expulsé hors de la chambre (35) à ttavers ledit orifice d'entrée (25) de la soupape (21) lorsque celle-ci revient vers sa position de repos. 11.- Device according to any one of the preceding claims, in which said inlet orifice (25) of the valve (21) is connected to said distribution orifice (31) of the dispensing head (30) in the rest position. valve (21), so that the fluid is expelled from the chamber (35) at tavav said said inlet port (25) of the valve (21) when the latter returns to its rest position.
PCT/FR2002/003798 2001-11-07 2002-11-06 Fluid product dispensing device WO2003039996A1 (en)

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US3858771A (en) * 1969-04-04 1975-01-07 Lablabo Soc Liquid delivery valve construction
US3870205A (en) * 1973-11-23 1975-03-11 Sequist Valve Company Variable spray rate aerosol
EP0125970A1 (en) * 1983-05-05 1984-11-21 Societe De Promotion, Recherche Et Innovation Technologique Metering valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7735696B2 (en) 2003-04-30 2010-06-15 Consort Medical Plc Metering valve
US7793806B2 (en) 2003-04-30 2010-09-14 Consort Medical Plc Metering valve
US7793805B2 (en) 2003-04-30 2010-09-14 Consort Medical Plc Metering valve

Also Published As

Publication number Publication date
FR2831841A1 (en) 2003-05-09
FR2831841B1 (en) 2004-09-24

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