EP1497201A2 - Fluid product dispenser - Google Patents

Fluid product dispenser

Info

Publication number
EP1497201A2
EP1497201A2 EP03738187A EP03738187A EP1497201A2 EP 1497201 A2 EP1497201 A2 EP 1497201A2 EP 03738187 A EP03738187 A EP 03738187A EP 03738187 A EP03738187 A EP 03738187A EP 1497201 A2 EP1497201 A2 EP 1497201A2
Authority
EP
European Patent Office
Prior art keywords
gas
fluid
partition
reservoir
fluid product
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03738187A
Other languages
German (de)
French (fr)
Other versions
EP1497201B1 (en
Inventor
Firmin Garcia
Alex Milian
Fabienne Uguen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aptar France SAS
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 EP1497201A2 publication Critical patent/EP1497201A2/en
Application granted granted Critical
Publication of EP1497201B1 publication Critical patent/EP1497201B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/06—Gas or vapour producing the flow, e.g. from a compressible bulb or air pump
    • B05B11/062—Gas or vapour producing the flow, e.g. from a compressible bulb or air pump designed for spraying particulate material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/06—Gas or vapour producing the flow, e.g. from a compressible bulb or air pump
    • 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
    • B65D83/0055—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents
    • 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
    • B65D83/06—Containers or packages with special means for dispensing contents for dispensing powdered or granular material

Definitions

  • the present invention relates to a fluid dispenser comprising a drive gas reservoir provided with actuating means capable of putting the gas contained in the reservoir under pressure, a fluid reservoir, and a dispensing orifice intended for the passage of '' a mixture of entrainment gas and fluid.
  • the entrainment gas reservoir thus serves as an air flush to entrain the content of the fluid reservoir in the direction of the dispensing orifice to be dispensed therein in the form of a two-phase gas / liquid or gas / powder mixture.
  • the fluid product is stored in the same tank as that of the entrainment gas.
  • the fluid and the entrainment gas are stored in separate tanks. It is then necessary that the entrainment gas can take with it part or all of the content of the fluid reservoir.
  • the document FR-2 038 476 describes a powdered product dispenser comprising a gas (air) reservoir which is in the form of a bellows on which a cylindrical duct is mounted.
  • the distributor further comprises a nozzle intended to be mounted on the free end of the conduit.
  • This nozzle defines a powder reservoir closed by a partition of porous material permeable to air but impermeable to the powder.
  • the nozzle also forms a dispensing orifice closable by a cap.
  • the partition not only keeps the fluid inside the fluid reservoir, but also disperses the gas flow from the entrainment gas reservoir. We thus obtain a better entrainment of the fluid towards the dispensing orifice.
  • the partition acts as a screen, grate or lattice defining holes in which the fluid product is accumulated so that the flow of pressurized gas passes through the holes and carries with it the fluid product.
  • a grid, screen or mesh structure is suitable for a powdery fluid product, while a porous structure is more suitable for a liquid fluid product.
  • the present invention specifically aims to promote the entrainment of the fluid product by the flow of entrainment gas.
  • the present invention provides a fluid dispenser comprising a drive gas reservoir provided with actuating means capable of putting the gas contained in the reservoir under pressure, a fluid reservoir, and a dispensing orifice. intended for the passage of a mixture consisting of entrainment gas and of fluid product, the fluid product tank being separated from the gas tank by a partition, said partition being permeable to gas and impermeable to fluid product, so that the gas under pressure enters the fluid reservoir through the partition and carries the fluid with it towards the dispensing orifice, characterized in that the fluid is urged towards the dispensing orifice by means of thrust, so there is always fluid at the dispensing orifice during dispensing.
  • the partition of the fluid reservoir is located in a throttling zone formed by the entrainment reservoir.
  • the gas reservoir comprises a body and a neck, the neck defining an opening communicating with the interior of the body by a conduit, the partition of the fluid reservoir is at least partially disposed in said conduit.
  • a nozzle is in leaktight engagement with the neck of the gas tank, said nozzle forming the dispensing orifice.
  • the fluid reservoir is partially formed by said tip.
  • the fluid reservoir includes a body engaged with the end piece, said body forming said partition.
  • the endpiece forms a housing open towards the body of the gas tank and partially closed at the level of the dispensing orifice, the body of the fluid reservoir being engaged in said housing.
  • the fluid product reservoir comprises a first end at which the dispensing orifice is formed and a second end, said second end being impermeable to the fluid product and to gas.
  • the body of the fluid reservoir includes a tubular section forming said partition, said tubular section being engaged in the nozzle, said section defining a first end adjacent to the dispensing orifice and a second end closed by a member shutter which is impermeable to gas.
  • the fluid reservoir includes a wall movable in a direction corresponding to a reduction in volume of said reservoir.
  • the partition is movable relative to, and advantageously towards, the dispensing orifice.
  • the partition is urged elastically in the direction of a reduction in the internal volume of the reservoir of fluid product.
  • the partition forms a part of the movable wall.
  • the partition is mounted on a scraper piston in sliding engagement in a cylinder.
  • the partition is mounted on an elastic prestressed membrane adapted to return to a rest position.
  • the wall is displaceable by the flow of pressurized gas.
  • FIGS. 1 and 2 are cross-sectional views respectively seen from above and in profile through a fluid dispenser according to a first embodiment of the invention
  • FIGS. 3 and 4 are views respectively similar to FIGS. 1 and 2 for a second embodiment of a fluid dispenser according to the invention
  • FIG. 5 is a cutaway perspective view of a dispenser according to a third embodiment of the invention.
  • FIG. 6 is cross-sectional views of a dispenser, respectively according to a fourth, a fifth and a sixth embodiment of the invention.
  • the fluid dispenser comprises a entrainment gas reservoir 10 formed by a container 1 which appears in FIGS. 1 to 4 in the form of a small flask or bottle substantially flat defining two substantially planar opposite faces 12 and 13 connected to each other by a substantially circular peripheral edge 11.
  • the vial 1 further comprises a neck 15 defining an internal conduit 16 which communicates the reservoir 10 with the outside.
  • the neck 15 comprises an annular upper edge 150 as well as a hollow internal wall 151.
  • the reservoir 10 is intended to contain a gas, for example air. We can however imagine other types of gas depending on the fluid that we want to distribute.
  • FIGS. 1 to 4 one or preferably two flat faces 12 and 13 are substantially elastically deformable so that they can be brought closer to one another by pressing with two fingers, for example of so as to reduce the volume of the reservoir 10.
  • the gas contained inside is pressurized, which has the effect of discharging it through the conduit 16 which forms a constriction, creating an acceleration of the gas inside .
  • the two arrows designated P show the direction of the force to be applied to the actuating walls 12 and 13 of the reservoir 10.
  • actuating means for reducing the volume of the reservoir 10 such as for example a piston displaceable inside a cylinder forming the reservoir.
  • the drive gas reservoir is associated with a dispensing tip 2, 2 ′, 2 "which is mounted in the neck 15 of the vial 1. More specifically, the dispensing tip forms a fixing sleeve 24 which is engaged in a sealed manner inside the neck 15. To allow good retention of the end piece, the sleeve 24 forms a projecting profile or fixing cord 241 intended to be housed in the recess 151 formed in the inner wall of the neck 15.
  • the end piece Above its sleeve 24, the end piece forms an abutment flange 23 which projects radially inwards and which comes into abutment contact against the upper end 150 of the neck 15 Above this flange 23, the end piece 2 forms a barrel 22, 22 ', 22 ", 22'" which is partially closed at its free end by a front distribution wall 20 in which a distribution orifice is pierced 21. Several distribution orifices can also be provided ion 21.
  • the dispensing tip internally forms a housing 25, 25 'which extends inside the sleeve 24, the flange 23 and the barrel. This housing 25 is widely open at the level of the socket end of the sleeve 24 and partially closed by the front distribution wall 20 pierced with the orifice 21.
  • the dispenser comprises a fluid product reservoir 3 containing a fluid, liquid or pulverulent product.
  • this fluid product reservoir 3 is formed by a tube 31 engaged in the housing 25, closed at one of its ends by a bottom 32 or a plug 32 ′ and partially closed at its other end by the front distribution wall 20 in which the distribution orifice 21 is drilled.
  • the fluid reservoir consists mainly of the tube 31 closed at its bottom and by the nozzle 2, with its front distribution wall 20.
  • the reservoir 3 here has a tubular shape coming from the tube 31, but one can of course imagine other shapes for the reservoir. It is however advantageous for the reservoir 3 to have a tubular shape, at least to be fitted inside the housing 25.
  • tubular shape for the reservoir 3 makes it possible to create a cylindrical annular 16 inside the neck 15. It is also advantageous for the reservoir 3 to extend inside the neck 15, preferably up to the interior of the reservoir 10, as can be seen in the various figures 1 to 4.
  • the annular 16 forms a annular throttle inside which the gas under pressure from the reservoir 10 is very strongly accelerated.
  • the bottom 32 in Figures 1 and 2, can be formed in one piece with the same material as the tube 31.
  • a plug 32 ' is attached to the end of a tube 31 which can be perfect.
  • the reservoir 3 at its tube 31 and / or its bottom 32 forms a partition permeable to gas from the reservoir 10 and impermeable to the fluid product contained in the reservoir 3.
  • the fluid product, liquid or pulverulent, stored in the inside the tank 3 cannot spread into the tank 10 while the gas contained in the tank 10 can be expelled through the porous or permeable partition of the tank 3 inside the tank 3 so as to entrain the fluid product through the dispensing orifice 21 so as to then be sprayed therein in a two-phase manner.
  • the pressurized gas from the reservoir 10 can enter the reservoir 3 at the tube 31 but also at the bottom 32.
  • the plug reported 32 ' is perfectly impermeable to gas so that the gas from the reservoir 10 is forced to penetrate inside the reservoir 3' through the partition 31 which is arranged mainly and preferably completely inside the neck 15
  • the partition 31 which is arranged mainly and preferably completely inside the neck 15
  • all of the gas under pressure is forced to pass inside the annular 16 where it is strongly accelerated. In this way, the gas penetrates inside the tank 3 with a good pressure or power.
  • FIG. 5 we see a dispenser with a container 1 in the general shape of a deformable pear at its wall 12.
  • This container internally forms a gas tank 10.
  • the container forms a wide neck 15 which defines a large opening.
  • a nozzle 2 'of general design similar to that of the previous embodiments is engaged in the neck 15 with its sleeve 24 and rests on the neck with its flange 23.
  • This nozzle 2' also forms a dispensing orifice 21 at its front wall 20.
  • This wall 20 is connected to the flange 23 by a barrel 22 'partially frustoconical.
  • the end piece 2 forms an internal housing 25'.
  • a partition 31 ' impermeable to the fluid product (liquid or powder) and permeable to gas, is engaged inside the housing, for example at the level of a snap-in recess 220.
  • This partition 31' divides the housing into two compartments, a first forming the fluid reservoir 3 and a second forming part of the gas reservoir 10.
  • This partition 31 'thus forms a body which extends transversely in the housing 25', and which advantageously serves as a support for the fluid product.
  • the endpiece forms an internal housing having a relatively large diameter or cross section.
  • the partition 31 ′ which can advantageously be in the form of a simple porous plate, extends perpendicular to the direction of the flow of gas under pressure.
  • the gas passes more directly through the partition, and thus encounters little loss of load or resistance; the speed of the gas beyond the partition in the tank 3 is thus largely sufficient to entrain the fluid towards the orifice 21, aided in this by the frustoconical shape of the barrel 22 'which directs and concentrates the biphasic flow towards the orifice.
  • FIG. 7 represents a fourth embodiment of the invention.
  • the container forming the reservoir 10 can be of a design similar or identical to those of FIGS. 5 and 6, that is to say in the form of a crushable pear.
  • This reservoir 10 also forms a neck 15 in which is engaged a dispensing nozzle 2 ".
  • This nozzle also forms a sleeve 24 engaged in the neck 15, a radial flange 23 which rests on the upper end of the neck 15, a barrel substantially cylindrical 22 ", a front wall 20 and a dispensing orifice 21.
  • the barrel 22" and the front wall 20 are here produced separately from the remainder of the nozzle 2 "formed by the sleeve 24 and the flange 23. It is possible to however imagine an alternative embodiment in which the end piece 2 "is produced in a single piece, as is the case in the previous embodiments.
  • the barrel 22" and the front wall 20 are therefore here produced in the form of a cup, the bottom of which is pierced at the level of the dispensing orifice 21. This cup is connected to the remainder of the end piece 2 "by fitting the end piece end of the barrel 22" around a fixing socket 220 formed substantially in the extension t of the sleeve 24. The edge of the barrel comes into bearing contact on the radial flange 23.
  • the dispensing end piece 2 also comprises an internal radial flange 26 which projects inwards.
  • This radial flange 26 serves as a support member for a spring 33.
  • This spring 33 is intended for request a follower or scraper piston 32 "which is engaged inside the barrel 22".
  • This scraper piston 32 can be made of a material permeable to entrainment gas and impermeable to the fluid product.
  • the scraper piston 32 ′ may also be impermeable to the driving gas but serve as a support for a partition 31 ", which is permeable to the driving gas and impermeable to the fluid product.
  • the driving gas expelled from the reservoir 10 when it is crushed is therefore forced to pass through the partition 31 "to reach the interior of the fluid product reservoir 3.
  • This fluid product reservoir 3 is thus formed by the ft 22 ', the front wall 20 pierced with its orifice 21 and the scraper piston 32 "which supports the partition 31".
  • the 32 "wiper piston is stressed elastically by the spring 33, the fluid inside the reservoir 3 is thus biased towards the dispensing orifice 21. This ensures that there is always fluid in the dispensing orifice 21, this which is preferable to ensure good quality of the distribution beyond the orifice 21.
  • the piston 32 "with its partition 31” is here moved in the direction of the distribution orifice 21.
  • piston 32 and more generally of a movable wall, is to ensure the presence of fluid product at the level of the dispensing orifice 21. This can of course be achieved by other means.
  • FIG. 8 represents a fifth embodiment which constitutes only a variant of that of FIG. 7.
  • the drive gas tank 10 can be strictly identical, that is to say in the form of a crushable pear.
  • a dispensing nozzle 2 '" has a general configuration substantially identical to that of the nozzle 2" in FIG. 7.
  • the nozzle 2' “comprises a sleeve 24 engaged in the neck 15 of the reservoir, a radial flange 23 resting on the upper end of the neck 15, a barrel 22 '", a front wall 20 pierced with a dispensing orifice 21.
  • the dispensing nozzle 2'" is produced in a single piece.
  • the fluid stored in the reservoir 3 is also biased towards the dispensing orifice 21 so as to ensure a continuous continuous supply.
  • an elastically deformable membrane 32 '" is provided here which constitutes a movable wall element of the fluid reservoir 3. This membrane 32'" is held on its periphery using a ring holding 26 'engaged in the barrel 22'". More specifically, the outer peripheral edge of the membrane 32 '" is wedged by the ring 26' against the front wall 20.
  • the membrane 32 ' can be made of a permeable material entrainment gas and impermeable to the product fluid, but preferably, the membrane 32 "serves as a support for a partition 31" which can advantageously be positioned in its center.
  • the membrane 32 '" is initially prestressed so that it naturally returns to its rest position.
  • the fluid inside the reservoir 3 is thus subjected to a pressure exerted by the membrane 32'".
  • the fluid 3 is thus continuously stressed in the direction of the dispensing orifice 21. It is easy to understand by looking at FIG. 8 that the membrane 32 '"wants to return to a position in which it is substantially pressed against the front wall 20. We can imagine that the membrane 32 '"has a flat or flat configuration in its rest position.
  • the dispenser has a configuration substantially similar to that of Figure 7: the same reference numerals have been adopted.
  • the essential difference with FIG. 7 is that the piston 32 "which supports the permeable partition 31" is not stressed by a spring.
  • the piston can rest on the socket 220.
  • the piston is moved by the flow of pressurized air which pushes the piston and passes through the partition.
  • the internal wall 221 of the barrel 22 "can be formed with notches in the manner of a rack to prevent the piston from turning back.
  • the means for pushing the movable wall of the fluid reservoir are here provided by the expelled air by crushing the tank 10.
  • the permeable partition 31 ", 31 '" is associated with the means making it possible to urge the fluid product inside the reservoir 3 in the direction and at the level of the orifice. distribution 21.
  • the permeable partition is not integral, fixed or constituted by the means making it possible to discharge the fluid product at the orifice 21.
  • the partition moves towards the dispensing orifice 21 so that the entraining gas travels a shorter distance in the fluid reservoir 3 as the dispenser is used.
  • the material used for the gas permeable partition and impermeable to the fluid product may have a porous structure, grid, screen or lattice depending on the fluid product to be dispensed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Nozzles (AREA)

Abstract

The invention relates to a fluid product dispenser. The inventive dispenser consists of: an entraining gas container (10) comprising actuation means (12') which pressurise the gas in the container, a fluid product container (3), and a dispensing orifice (21) which is designed for the passage of a mixture of entraining gas and fluid product. The aforementioned fluid product container (3) is separated from the gas container (10) by means of a partition (31'; 31'') which is permeable to the gas and impermeable to the fluid product, such that the pressurised gas enters the fluid product container (3) through the partition and carries the fluid product therewith towards the dispensing orifice. The invention is characterised in that the fluid product is moved towards the dispensing orifice by push means (32', 32''), such that there is always fluid product at the dispensing orifice during the dispensing of said fluid.

Description

Distributeur de produit fluide Fluid dispenser
La présente invention concerne un distributeur de produit fluide comprenant un réservoir de gaz d'entraînement pourvu de moyens d'actionnement aptes à mettre le gaz contenu dans le réservoir sous pression, un réservoir de produit fluide, et un orifice de distribution destiné au passage d'un mélange constitué de gaz d'entraînement et du produit fluide. Le réservoir de gaz d'entraînement sert ainsi de chasse d'air pour entraîner le contenu du réservoir de produit fluide en direction de l'orifice de distribution pour y être distribué sous la forme d'un mélange biphasique gaz/liquide ou gaz/poudre.The present invention relates to a fluid dispenser comprising a drive gas reservoir provided with actuating means capable of putting the gas contained in the reservoir under pressure, a fluid reservoir, and a dispensing orifice intended for the passage of '' a mixture of entrainment gas and fluid. The entrainment gas reservoir thus serves as an air flush to entrain the content of the fluid reservoir in the direction of the dispensing orifice to be dispensed therein in the form of a two-phase gas / liquid or gas / powder mixture. .
Il existe déjà de nombreux distributeurs de produit fluide de ce type utilisés notamment dans le domaine de la parfumerie, de la cosmétique ou surtout et encore de la pharmacie. Très souvent, le produit fluide est stocké dans le même réservoir que celui du gaz d'entraînement. Dans d'autres cas, le produit fluide et le gaz d'entraînement sont stockés dans des réservoirs séparés. Il faut alors que le gaz d'entraînement puisse emporter avec lui une partie ou la totalité du contenu du réservoir de produit fluide.There are already many distributors of this type of fluid used in particular in the field of perfumery, cosmetics or especially and still pharmacy. Very often, the fluid product is stored in the same tank as that of the entrainment gas. In other cases, the fluid and the entrainment gas are stored in separate tanks. It is then necessary that the entrainment gas can take with it part or all of the content of the fluid reservoir.
Dans l'art antérieur, le document FR-2 038 476 décrit un distributeur de produit pulvérulent comprenant un réservoir de gaz (air) qui se présente sous la forme d'un soufflet sur lequel est monté un conduit cylindrique. Le distributeur comprend d'autre part un embout destiné à être monté sur l'extrémité libre du conduit. Cet embout définit un réservoir de poudre obturé par une cloison de matière poreuse perméable à l'air mais imperméable à la poudre. L'embout forme également un orifice de distribution obturable par un capuchon. En actionnant le soufflet, de l'air est comprimé et chasse à travers la cloison de manière pénétrer dans le réservoir de poudre et créer ainsi une turbulence dans le réservoir pour refouler un mélange de poudre et d'air à travers l'orifice de distribution.In the prior art, the document FR-2 038 476 describes a powdered product dispenser comprising a gas (air) reservoir which is in the form of a bellows on which a cylindrical duct is mounted. The distributor further comprises a nozzle intended to be mounted on the free end of the conduit. This nozzle defines a powder reservoir closed by a partition of porous material permeable to air but impermeable to the powder. The nozzle also forms a dispensing orifice closable by a cap. By actuating the bellows, air is compressed and expels through the partition so as to penetrate into the powder reservoir and thus create turbulence in the reservoir to push a mixture of powder and air through the dispensing orifice .
La cloison permet non seulement de maintenir le produit fluide à l'intérieur du réservoir de produit fluide, mais permet également de disperser le flux de gaz provenant du réservoir de gaz d'entraînement. On obtient ainsi un meilleur entraînement du produit fluide vers l'orifice de distribution. La cloison joue un rôle de tamis, de grille ou de treillis définissant des trous dans lesquels le produit fluide est accumulé de sorte que le flux de gaz sous pression passe à travers les trous et entraîne avec lui le produit fluide. Une structure de grille, de tamis ou de treillis est appropriée pour un produit fluide pulvérulent, alors qu'une structure poreuse est plus appropriée pour un produit fluide liquide.The partition not only keeps the fluid inside the fluid reservoir, but also disperses the gas flow from the entrainment gas reservoir. We thus obtain a better entrainment of the fluid towards the dispensing orifice. The partition acts as a screen, grate or lattice defining holes in which the fluid product is accumulated so that the flow of pressurized gas passes through the holes and carries with it the fluid product. A grid, screen or mesh structure is suitable for a powdery fluid product, while a porous structure is more suitable for a liquid fluid product.
La présente invention a précisément pour but de favoriser l'entraînement du produit fluide par le flux de gaz d'entraînement.The present invention specifically aims to promote the entrainment of the fluid product by the flow of entrainment gas.
Pour ce faire, la présente invention propose un distributeur de produit fluide comprenant un réservoir de gaz d'entraînement pourvu de moyens d'actionnement aptes à mettre le gaz contenu dans le réservoir sous pression, un réservoir de produit fluide, et un orifice de distribution destiné au passage d'un mélange constitué de gaz d'entraînement et de produit fluide, le réservoir de produit fluide étant séparé du réservoir de gaz par une cloison, ladite cloison étant perméable au gaz et imperméable au produit fluide, de sorte que le gaz sous pression pénètre dans le réservoir de produit fluide à travers la cloison et entraîne le produit fluide avec lui vers l'orifice de distribution, caractérisé en ce que le produit fluide est sollicité vers l'orifice de distribution par des moyens de poussée, de sorte qu'il y a toujours du produit fluide au niveau de l'orifice de distribution lors de la distribution.To do this, the present invention provides a fluid dispenser comprising a drive gas reservoir provided with actuating means capable of putting the gas contained in the reservoir under pressure, a fluid reservoir, and a dispensing orifice. intended for the passage of a mixture consisting of entrainment gas and of fluid product, the fluid product tank being separated from the gas tank by a partition, said partition being permeable to gas and impermeable to fluid product, so that the gas under pressure enters the fluid reservoir through the partition and carries the fluid with it towards the dispensing orifice, characterized in that the fluid is urged towards the dispensing orifice by means of thrust, so there is always fluid at the dispensing orifice during dispensing.
Dans un mode de réalisation de l'invention, la cloison du réservoir de produit fluide est située dans une zone d'étranglement formée par le réservoir de gaz d'entraînement. Par exemple, le réservoir de gaz comprend un corps et un col, le col définissant une ouverture communiquant avec l'intérieur du corps par un conduit, la cloison du réservoir de produit fluide est au moins partiellement disposée dans ledit conduit. Il s'agit là d'un mode de réalisation très pratique. Selon un autre aspect de l'invention, un embout est en prise étanche avec le col du réservoir de gaz, ledit embout formant l'orifice de distribution. Avantageusement, le réservoir de produit fluide est partiellement formé par ledit embout. Selon une autre forme de réalisation, le réservoir de produit fluide comprend un corps en prise avec l'embout, ledit corps formant ladite cloison.In one embodiment of the invention, the partition of the fluid reservoir is located in a throttling zone formed by the entrainment reservoir. For example, the gas reservoir comprises a body and a neck, the neck defining an opening communicating with the interior of the body by a conduit, the partition of the fluid reservoir is at least partially disposed in said conduit. This is a very practical embodiment. According to another aspect of the invention, a nozzle is in leaktight engagement with the neck of the gas tank, said nozzle forming the dispensing orifice. Advantageously, the fluid reservoir is partially formed by said tip. According to another embodiment, the fluid reservoir includes a body engaged with the end piece, said body forming said partition.
Avantageusement, l'embout forme un logement ouvert vers le corps du réservoir de gaz et partiellement fermé au niveau de l'orifice de distribution, le corps du réservoir de produit fluide étant engagé dans ledit logement.Advantageously, the endpiece forms a housing open towards the body of the gas tank and partially closed at the level of the dispensing orifice, the body of the fluid reservoir being engaged in said housing.
Selon un autre aspect pratique, le réservoir de produit fluide comprend une première extrémité au niveau de laquelle est formé l'orifice de distribution et une seconde extrémité, ladite seconde extrémité étant imperméable au produit fluide et au gaz. Avantageusement, le corps du réservoir de produit fluide comprend une section tubulaire formant ladite cloison, ladite section tubulaire étant en prise dans l'embout, ladite section définissant une première extrémité adjacente à l'orifice de distribution et une seconde extrémité obturée par un organe d'obturation qui est imperméable au gaz.According to another practical aspect, the fluid product reservoir comprises a first end at which the dispensing orifice is formed and a second end, said second end being impermeable to the fluid product and to gas. Advantageously, the body of the fluid reservoir includes a tubular section forming said partition, said tubular section being engaged in the nozzle, said section defining a first end adjacent to the dispensing orifice and a second end closed by a member shutter which is impermeable to gas.
On obtient ainsi une distribution plus sûre et régulière, étant donné que le gaz d'entraînement est contraint de passer à travers l'orifice de distribution, qui est toujours alimenté en produit fluide.This provides a more secure and regular distribution, since the entrainment gas is forced to pass through the distribution orifice, which is always supplied with fluid.
Selon une forme de réalisation, le réservoir de produit fluide comprend une paroi déplaçable dans une direction correspondant à une diminution de volume dudit réservoir. Avantageusement, la cloison est déplaçable par rapport à, et avantageusement vers, l'orifice de distribution. De préférence, la cloison est sollicitée élastiquement dans le sens d'une diminution du volume interne du réservoir- de produit fluide. Avantageusement, la cloison forme une partie de la paroi déplaçable. Dans un mode de réalisation pratique, la cloison est montée sur un piston racleur en prise coulissant dans un cylindre. En variante, la cloison est montée sur une membrane élastique précontrainte adaptée à retourner vers une position de repos.According to one embodiment, the fluid reservoir includes a wall movable in a direction corresponding to a reduction in volume of said reservoir. Advantageously, the partition is movable relative to, and advantageously towards, the dispensing orifice. Preferably, the partition is urged elastically in the direction of a reduction in the internal volume of the reservoir of fluid product. Advantageously, the partition forms a part of the movable wall. In a practical embodiment, the partition is mounted on a scraper piston in sliding engagement in a cylinder. As a variant, the partition is mounted on an elastic prestressed membrane adapted to return to a rest position.
Selon un autre mode de réalisation, la paroi est déplaçable par le flux de gaz sous pression. L'invention sera maintenant plus amplement décrite en référence aux dessins joints donnant à titre d'exemples non limitatifs deux modes de réalisation de l'invention.According to another embodiment, the wall is displaceable by the flow of pressurized gas. The invention will now be described more fully with reference to the accompanying drawings giving by way of nonlimiting examples two embodiments of the invention.
Sur les figures : - les figures 1 et 2 sont des vues en coupe transversale respectivement vues de haut et de profil à travers un distributeur de produit fluide selon un premier mode de réalisation de l'invention,In the figures: FIGS. 1 and 2 are cross-sectional views respectively seen from above and in profile through a fluid dispenser according to a first embodiment of the invention,
- les figures 3 et 4 sont des vues respectivement similaires aux figures 1 et 2 pour un second mode de réalisation d'un distributeur de produit fluide selon l'invention,FIGS. 3 and 4 are views respectively similar to FIGS. 1 and 2 for a second embodiment of a fluid dispenser according to the invention,
- la figure 5 est une vue en perspective découpée d'un distributeur selon un troisième mode de réalisation de l'invention, etFIG. 5 is a cutaway perspective view of a dispenser according to a third embodiment of the invention, and
- les figures 6, 7 et 8 sont des vues en coupe transversale d'un distributeur, respectivement selon un quatrième, un cinquième et un sixième mode de réalisation de l'invention.- Figures 6, 7 and 8 are cross-sectional views of a dispenser, respectively according to a fourth, a fifth and a sixth embodiment of the invention.
Dans les modes de réalisation utilisés pour illustrer la présente invention, le distributeur de produit fluide comprend un réservoir de gaz d'entraînement 10 formé par un récipient 1 qui se présente sur les figures 1 à 4 sous la forme d'une petite fiole ou bouteille sensiblement plate définissant deux faces opposées sensiblement planes 12 et 13 reliées l'une à l'autre par un bord périphérique sensiblement circulaire 11. La fiole 1 comprend en outre un col 15 définissant un conduit interne 16 qui fait communiquer le réservoir 10 avec l'extérieur. Le col 15 comprend un bord supérieur annulaire 150 ainsi qu'une paroi interne évidée 151. Le réservoir 10 est destiné à contenir un gaz, par exemple de l'air. On peut toutefois imaginer d'autres types de gaz en fonction du produit fluide que l'on veut distribuer.In the embodiments used to illustrate the present invention, the fluid dispenser comprises a entrainment gas reservoir 10 formed by a container 1 which appears in FIGS. 1 to 4 in the form of a small flask or bottle substantially flat defining two substantially planar opposite faces 12 and 13 connected to each other by a substantially circular peripheral edge 11. The vial 1 further comprises a neck 15 defining an internal conduit 16 which communicates the reservoir 10 with the outside. The neck 15 comprises an annular upper edge 150 as well as a hollow internal wall 151. The reservoir 10 is intended to contain a gas, for example air. We can however imagine other types of gas depending on the fluid that we want to distribute.
Cette configuration particulière du réservoir 10 à partir d'une fiole 1 n'est pas la seule possible : en effet, d'autres formes peuvent être utilisées pour réaliser le réservoir de gaz d'entraînement 10, comme celle des figures 5 à 8 qui représente un réservoir sous la forme d'une poire écrasable. Sur les figures 1 à 4, une ou de préférence deux faces planes 12 et 13 sont sensiblement déformables élastiquement de sorte que l'on peut les rapprocher l'une de l'autre en appuyant à l'aide de deux doigts, par exemple de manière à réduire le volume du réservoir 10. Ainsi, le gaz contenu à l'intérieur est mis sous pression, ce qui a pour effet de le refouler à travers le conduit 16 qui forme un étranglement, créant une accélération du gaz à l'intérieur. Les deux flèches désignées P montrent la direction de la force à appliquer sur les parois d'actionnement 12 et 13 du réservoir 10. On peut bien entendu imaginer d'autres moyens d'actionnement pour réduire le volume du réservoir 10, comme par exemple un piston déplaçable à l'intérieur d'un cylindre formant le réservoir.This particular configuration of the reservoir 10 from a vial 1 is not the only possible one: in fact, other forms can be used to make the reservoir of drive gas 10, like that of FIGS. 5 to 8 which represents a tank in the form of a crushable pear. In FIGS. 1 to 4, one or preferably two flat faces 12 and 13 are substantially elastically deformable so that they can be brought closer to one another by pressing with two fingers, for example of so as to reduce the volume of the reservoir 10. Thus, the gas contained inside is pressurized, which has the effect of discharging it through the conduit 16 which forms a constriction, creating an acceleration of the gas inside . The two arrows designated P show the direction of the force to be applied to the actuating walls 12 and 13 of the reservoir 10. One can of course imagine other actuating means for reducing the volume of the reservoir 10, such as for example a piston displaceable inside a cylinder forming the reservoir.
Dans tous les modes de réalisation, le réservoir de gaz d'entraînement est associé à un embout de distribution 2, 2', 2" qui est monté dans le col 15 de la fiole 1. Plus précisément, l'embout de distribution forme un manchon de fixation 24 qui est engagé de manière étanche à l'intérieur du col 15. Pour permettre un bon maintien de l'embout, le manchon 24 forme un profil saillant ou cordon de fixation 241 destiné à venir se loger dans l'évidement 151 formé dans la paroi interne du col 15. Au-dessus de son manchon 24, l'embout forme une collerette de butée 23 qui fait saillie radialement vers l'intérieur et qui vient en contact de butée contre l'extrémité supérieure 150 du col 15. Au-dessus de cette collerette 23, l'embout 2 forme un fut 22, 22', 22", 22'" qui est partiellement obturé à son extrémité libre par une paroi frontale de distribution 20 dans laquelle est percé un orifice de distribution 21. On peut également prévoir plusieurs orifices de distribution 21. L'embout de distribution forme intérieurement un logement 25, 25' qui s'étend à l'intérieur du manchon 24, de la collerette 23 et du fût. Ce logement 25 est largement ouvert au niveau de l'extrémité hbre du manchon 24 et partiellement obturé par la paroi frontale de distribution 20 percée de l'orifice 21.In all the embodiments, the drive gas reservoir is associated with a dispensing tip 2, 2 ′, 2 "which is mounted in the neck 15 of the vial 1. More specifically, the dispensing tip forms a fixing sleeve 24 which is engaged in a sealed manner inside the neck 15. To allow good retention of the end piece, the sleeve 24 forms a projecting profile or fixing cord 241 intended to be housed in the recess 151 formed in the inner wall of the neck 15. Above its sleeve 24, the end piece forms an abutment flange 23 which projects radially inwards and which comes into abutment contact against the upper end 150 of the neck 15 Above this flange 23, the end piece 2 forms a barrel 22, 22 ', 22 ", 22'" which is partially closed at its free end by a front distribution wall 20 in which a distribution orifice is pierced 21. Several distribution orifices can also be provided ion 21. The dispensing tip internally forms a housing 25, 25 'which extends inside the sleeve 24, the flange 23 and the barrel. This housing 25 is widely open at the level of the socket end of the sleeve 24 and partially closed by the front distribution wall 20 pierced with the orifice 21.
Le distributeur comprend un réservoir de produit fluide 3 contenant un produit fluide, liquide ou pulvérulent. Sur les figures 1 à 4, ce réservoir de produit fluide 3 est formé par un tube 31 engagé dans le logement 25, obturé à une de ses extrémités par un fond 32 ou un bouchon 32' et partiellement obturé à son autre extrémité par la paroi frontale de distribution 20 dans laquelle est percé l'orifice de distribution 21. On peut ainsi dire que le réservoir de produit fluide est constitué en majeure partie par le tube 31 obturé au niveau de son fond et par l'embout 2, avec sa paroi frontale de distribution 20. Le réservoir 3 a ici une forme tubulaire provenant du tube 31, mais on peut bien entendu imaginer d'autres formes pour le réservoir. Il est cependant avantageux que le réservoir 3 présente une forme tubulaire, au moins pour être emmanché à l'intérieur du logement 25. En outre, la forme tubulaire du réservoir 3 permet de créer un annulaire cylindrique 16 à l'intérieur du col 15. Il est également avantageux que le réservoir 3 s'étende à l'intérieur du col 15, de préférence jusqu'à l'intérieur du réservoir 10, comme on peut le voir sur les différentes figures 1 à 4. L'annulaire 16 forme un étranglement annulaire à l'intérieur duquel le gaz sous pression en provenance du réservoir 10 est très fortement accéléré.The dispenser comprises a fluid product reservoir 3 containing a fluid, liquid or pulverulent product. In FIGS. 1 to 4, this fluid product reservoir 3 is formed by a tube 31 engaged in the housing 25, closed at one of its ends by a bottom 32 or a plug 32 ′ and partially closed at its other end by the front distribution wall 20 in which the distribution orifice 21 is drilled. It can thus be said that the fluid reservoir consists mainly of the tube 31 closed at its bottom and by the nozzle 2, with its front distribution wall 20. The reservoir 3 here has a tubular shape coming from the tube 31, but one can of course imagine other shapes for the reservoir. It is however advantageous for the reservoir 3 to have a tubular shape, at least to be fitted inside the housing 25. In addition, the tubular shape for the reservoir 3 makes it possible to create a cylindrical annular 16 inside the neck 15. It is also advantageous for the reservoir 3 to extend inside the neck 15, preferably up to the interior of the reservoir 10, as can be seen in the various figures 1 to 4. The annular 16 forms a annular throttle inside which the gas under pressure from the reservoir 10 is very strongly accelerated.
Le fond 32, sur les figures 1 et 2, peut être formé en une seule pièce avec le même matériau que le tube 31. Dans la forme de réalisation des figures 3 et 4, un bouchon 32' est rapporté à l'extrémité d'un tube 31 qui peut être parfait.The bottom 32, in Figures 1 and 2, can be formed in one piece with the same material as the tube 31. In the embodiment of Figures 3 and 4, a plug 32 'is attached to the end of a tube 31 which can be perfect.
Le réservoir 3 au niveau de son tube 31 et/ ou de son fond 32 forme une cloison perméable au gaz du réservoir 10 et imperméable au produit fluide contenu dans le réservoir 3. Ainsi, le produit fluide, liquide ou pulvérulent, stocké à l'intérieur du réservoir 3 ne peut pas se répandre dans le réservoir 10 alors que le gaz contenu dans le réservoir 10 peut être chassé à travers la cloison poreuse ou perméable du réservoir 3 à l'intérieur du réservoir 3 pour ainsi entraîner le produit fluide à travers l'orifice de distribution 21 pour y être ensuite pulvérisé de manière biphasique. Dans la forme de réalisation des figures 1 et 2, le gaz sous pression en provenance du réservoir 10 peut pénétrer dans le réservoir 3 au niveau du tube 31 mais également au niveau du fond 32. Dans la variante des figures 3 et 4, le bouchon rapporté 32' est parfaitement imperméable au gaz de sorte que le gaz du réservoir 10 est obligé de pénétrer à l'intérieur du réservoir 3' à travers la cloison 31 qui est disposée en majeure partie et de préférence totalement à l'intérieur du col 15. Ainsi, la totalité du gaz sous pression est forcée de passer à l'intérieur de l'annulaire 16 où il est fortement accéléré. De cette manière, le gaz pénètre à l'intérieur du réservoir 3 avec une bonne pression ou puissance.The reservoir 3 at its tube 31 and / or its bottom 32 forms a partition permeable to gas from the reservoir 10 and impermeable to the fluid product contained in the reservoir 3. Thus, the fluid product, liquid or pulverulent, stored in the inside the tank 3 cannot spread into the tank 10 while the gas contained in the tank 10 can be expelled through the porous or permeable partition of the tank 3 inside the tank 3 so as to entrain the fluid product through the dispensing orifice 21 so as to then be sprayed therein in a two-phase manner. In the embodiment of Figures 1 and 2, the pressurized gas from the reservoir 10 can enter the reservoir 3 at the tube 31 but also at the bottom 32. In the variant of Figures 3 and 4, the plug reported 32 'is perfectly impermeable to gas so that the gas from the reservoir 10 is forced to penetrate inside the reservoir 3' through the partition 31 which is arranged mainly and preferably completely inside the neck 15 Thus, all of the gas under pressure is forced to pass inside the annular 16 where it is strongly accelerated. In this way, the gas penetrates inside the tank 3 with a good pressure or power.
En se référant à la figure 5, on voit un distributeur avec un récipient 1 en forme générale de poire déformable au niveau de sa paroi 12. Ce récipient forme intérieurement un réservoir de gaz 10. Le récipient forme un col large 15 qui définit une grande ouverture. Un embout 2' de conception générale analogue de celle des modes de réalisation précédents est engagé dans le col 15 avec son manchon 24 et repose sur le col avec sa collerette 23. Cet embout 2' forme également un orifice de distribution 21 au niveau de sa paroi avant 20. Cette paroi 20 est reliée à la collerette 23 par un fût 22' partiellement tronconique. L'embout 2' forme un logement interne 25'. Une cloison 31', étanche au produit fluide (liquide ou poudre) et perméable au gaz, est en prise à l'intérieur du logement, par exemple au niveau d'un évidement d'encliquetage 220. Cette cloison 31' divise le logement en deux compartiments, un premier formant le réservoir de produit fluide 3 et un second faisant partie du réservoir de gaz 10. Cette cloison 31' forme ainsi un corps qui s'étend transversalement dans le logement 25', et qui sert avantageusement de support pour le produit fluide.Referring to Figure 5, we see a dispenser with a container 1 in the general shape of a deformable pear at its wall 12. This container internally forms a gas tank 10. The container forms a wide neck 15 which defines a large opening. A nozzle 2 'of general design similar to that of the previous embodiments is engaged in the neck 15 with its sleeve 24 and rests on the neck with its flange 23. This nozzle 2' also forms a dispensing orifice 21 at its front wall 20. This wall 20 is connected to the flange 23 by a barrel 22 'partially frustoconical. The end piece 2 'forms an internal housing 25'. A partition 31 ', impermeable to the fluid product (liquid or powder) and permeable to gas, is engaged inside the housing, for example at the level of a snap-in recess 220. This partition 31' divides the housing into two compartments, a first forming the fluid reservoir 3 and a second forming part of the gas reservoir 10. This partition 31 'thus forms a body which extends transversely in the housing 25', and which advantageously serves as a support for the fluid product.
Dans ce troisième mode de réalisation, l'embout forme un logement interne présentant un diamètre ou une section transversale relativement importante. La cloison 31', qui peut avantageusement se présenter sous la forme d'une simple plaque poreuse, s'étend perpendiculairement à la direction du flux de gaz sous pression. Ainsi, le gaz passe plus directement à travers la cloison, et ne rencontre ainsi que peu de perte de charge ou de résistance ; la vitesse du gaz au-delà de la cloison dans le réservoir 3 est ainsi largement suffisante pour entraîner le produit fluide vers l'orifice 21, aidé en cela par la forme tronconique du fût 22' qui oriente et concentre le flux biphasique vers l'orifice.In this third embodiment, the endpiece forms an internal housing having a relatively large diameter or cross section. The partition 31 ′, which can advantageously be in the form of a simple porous plate, extends perpendicular to the direction of the flow of gas under pressure. Thus, the gas passes more directly through the partition, and thus encounters little loss of load or resistance; the speed of the gas beyond the partition in the tank 3 is thus largely sufficient to entrain the fluid towards the orifice 21, aided in this by the frustoconical shape of the barrel 22 'which directs and concentrates the biphasic flow towards the orifice.
Les modes de réalisation des figures 1 à 5 n'incorporent pas l'esprit de l'invention qui va être expliqué en référence aux figures 6 à 8. Cependant, ces modes de réalisation incorporent des caractéristiques avantageuses qui peuvent être mises en œuvre avec l'invention. On se référera maintenant à la figure 7 qui représente un quatrième mode de réalisation de l'invention. Le récipient formant le réservoir 10 peut être d'une conception analogue ou identique à celles des figures 5 et 6, c'est à dire sous la forme d'une poire écrasable. Ce réservoir 10 forme également un col 15 dans lequel est engagé un embout de distribution 2". Cet embout forme également un manchon 24 engagé dans le col 15, une collerette radiale 23 qui repose sur l'extrémité supérieure du col 15, un fût sensiblement cylindrique 22", une paroi frontale 20 et un orifice de distribution 21. Le fût 22" et la paroi frontale 20 sont ici réalisés de manière séparée du restant de l'embout 2" formé par le manchon 24 et la collerette 23. On peut cependant imaginer une variante de réalisation dans laquelle l'embout 2" est réalisé de manière monobloc, comme c'est le cas dans les modes de réalisation précédents. Le fût 22" et la paroi frontale 20 sont donc ici réalisés sous la forme d'un godet dont le fond est percé au niveau de l'orifice de distribution 21. Ce godet est relié au restant de l'embout 2" par emmanchement du bord d'extrémité hbre du fût 22" autour d'une douille de fixation 220 formée sensiblement dans le prolongement du manchon 24. Le bord du fût vient en contact d'appui sur la collerette radiale 23.The embodiments of Figures 1 to 5 do not incorporate the spirit of the invention which will be explained with reference to Figures 6 to 8. However, these embodiments incorporate advantageous characteristics which can be implemented with the 'invention. Reference will now be made to FIG. 7 which represents a fourth embodiment of the invention. The container forming the reservoir 10 can be of a design similar or identical to those of FIGS. 5 and 6, that is to say in the form of a crushable pear. This reservoir 10 also forms a neck 15 in which is engaged a dispensing nozzle 2 ". This nozzle also forms a sleeve 24 engaged in the neck 15, a radial flange 23 which rests on the upper end of the neck 15, a barrel substantially cylindrical 22 ", a front wall 20 and a dispensing orifice 21. The barrel 22" and the front wall 20 are here produced separately from the remainder of the nozzle 2 "formed by the sleeve 24 and the flange 23. It is possible to however imagine an alternative embodiment in which the end piece 2 "is produced in a single piece, as is the case in the previous embodiments. The barrel 22" and the front wall 20 are therefore here produced in the form of a cup, the bottom of which is pierced at the level of the dispensing orifice 21. This cup is connected to the remainder of the end piece 2 "by fitting the end piece end of the barrel 22" around a fixing socket 220 formed substantially in the extension t of the sleeve 24. The edge of the barrel comes into bearing contact on the radial flange 23.
Dans ce mode de réalisation, l'embout de distribution 2" comprend également une bride radiale interne 26 qui fait saillie vers l'intérieur. Cette bride radiale 26 sert d'organe d'appui pour un ressort 33. Ce ressort 33 est destiné à solliciter un piston-suiveur ou racleur 32" qui est en prise à l'intérieur du fût 22". Ce piston-racleur 32" peut être réalisé en un matériau perméable au gaz d'entraînement et imperméable au produit fluide. Cependant, dans le mode de réalisation représenté sur la figure 7, le piston-racleur 32' peut être également imperméable au gaz d'entraînement mais servir de support pour une cloison 31", qui elle est perméable au gaz d'entraînement et imperméable au produit fluide. Le gaz d'entraînement chassé hors du réservoir 10 lors de son écrasement est donc contraint de passer à travers la cloison 31" pour parvenir à l'intérieur du réservoir de produit fluide 3. Ce réservoir de produit fluide 3 est ainsi formé par le f t 22', la paroi frontale 20 percée de son orifice 21 et du piston-racleur 32" qui supporte la cloison 31". Etant donné que le piston-racleur 32" est sollicité élastiquement par le ressort 33, le produit fluide à l'intérieur du réservoir 3 est ainsi sollicité vers l'orifice de distribution 21. On assure ainsi qu'il y a toujours du produit fluide au niveau de l'orifice de distribution 21, ce qui est préférable pour assurer une bonne qualité de la distribution au-delà de l'orifice 21. Le piston 32" avec sa cloison 31" est ici déplacé en direction de l'orifice de distribution 21. On peut cependant imaginer des variantes de réalisation dans lesquelles le piston agirait dans une direction autre, par exemple transversale, mais en assurant tout de même une alimentation continue de l'orifice de distribution 21 en produit fluide. En effet, le but du piston 32", et plus généralement d'une paroi déplaçable, est d'assurer la présence de produit fluide au niveau de l'orifice de distribution 21. Ceci peut bien entendu être réalisé par d'autres moyens.In this embodiment, the dispensing end piece 2 "also comprises an internal radial flange 26 which projects inwards. This radial flange 26 serves as a support member for a spring 33. This spring 33 is intended for request a follower or scraper piston 32 "which is engaged inside the barrel 22". This scraper piston 32 "can be made of a material permeable to entrainment gas and impermeable to the fluid product. However, in the embodiment shown in FIG. 7, the scraper piston 32 ′ may also be impermeable to the driving gas but serve as a support for a partition 31 ", which is permeable to the driving gas and impermeable to the fluid product. The driving gas expelled from the reservoir 10 when it is crushed is therefore forced to pass through the partition 31 "to reach the interior of the fluid product reservoir 3. This fluid product reservoir 3 is thus formed by the ft 22 ', the front wall 20 pierced with its orifice 21 and the scraper piston 32 "which supports the partition 31". As the 32 "wiper piston is stressed elastically by the spring 33, the fluid inside the reservoir 3 is thus biased towards the dispensing orifice 21. This ensures that there is always fluid in the dispensing orifice 21, this which is preferable to ensure good quality of the distribution beyond the orifice 21. The piston 32 "with its partition 31" is here moved in the direction of the distribution orifice 21. One can however imagine alternative embodiments in which the piston would act in a different direction, for example transverse, but still ensuring a continuous supply of the dispensing orifice 21 with fluid. In fact, the purpose of the piston 32 ", and more generally of a movable wall, is to ensure the presence of fluid product at the level of the dispensing orifice 21. This can of course be achieved by other means.
On se référera enfin à la figure 8 qui représente un cinquième mode de réalisation qui ne constitue qu'une variante de celle de la figure 7. En effet, le réservoir de gaz d'entraînement 10 peut être strictement identique, c'est à dire sous la forme d'une poire écrasable. Un embout de distribution 2'" présente une configuration générale sensiblement identique à celle de l'embout 2" de la figure 7. En effet, l'embout 2'" comprend un manchon 24 engagé dans le col 15 du réservoir, une collerette radiale 23 en appui sur l'extrémité supérieure du col 15, un fût 22'", une paroi frontale 20 percée d'un orifice de distribution 21. Ici, l'embout de distribution 2'" est réalisé de manière monobloc.Finally, reference is made to FIG. 8 which represents a fifth embodiment which constitutes only a variant of that of FIG. 7. In fact, the drive gas tank 10 can be strictly identical, that is to say in the form of a crushable pear. A dispensing nozzle 2 '"has a general configuration substantially identical to that of the nozzle 2" in FIG. 7. In fact, the nozzle 2' "comprises a sleeve 24 engaged in the neck 15 of the reservoir, a radial flange 23 resting on the upper end of the neck 15, a barrel 22 '", a front wall 20 pierced with a dispensing orifice 21. Here, the dispensing nozzle 2'" is produced in a single piece.
Tout comme dans le mode de réalisation de la figure 7, le produit fluide stocké dans le réservoir 3 est également sollicité en direction de l'orifice de distribution 21 de manière à en assurer une alimentation continue permanente. Pour assurer cette alimentation continue permanente, il est ici prévu une membrane élastiquement déformable 32'" qui constitue un élément de paroi déplaçable du réservoir de produit fluide 3. Cette membrane 32'" est maintenue sur son pourtour à l'aide d'une bague de maintien 26' engagée dans le fût 22'". Plus précisément, le bord périphérique externe de la membrane 32'" est coincé par l'anneau 26' contre la paroi frontale 20. La membrane 32' peut être réalisée en un matériau perméable au gaz d'entraînement et imperméable au produit fluide, mais de préférence, la membrane 32" sert de support pour une cloison 31'" qui peut avantageusement être positionné en son centre. La membrane 32'" est initialement précontrainte de sorte qu'elle veut retourner naturellement vers sa position de repos. Le produit fluide à l'intérieur du réservoir 3 est ainsi soumis à une pression exercée par la membrane 32'". Le produit fluide 3 est ainsi continuellement sollicité en direction de l'orifice de distribution 21. On comprend aisément en regardant la figure 8 que la membrane 32'" veut revenir dans une position dans laquelle elle est sensiblement plaquée contre la paroi frontale 20. On peut imaginer que la membrane 32'" présente une configuration plane ou plate dans sa position de repos.As in the embodiment of Figure 7, the fluid stored in the reservoir 3 is also biased towards the dispensing orifice 21 so as to ensure a continuous continuous supply. To ensure this continuous continuous supply, an elastically deformable membrane 32 '"is provided here which constitutes a movable wall element of the fluid reservoir 3. This membrane 32'" is held on its periphery using a ring holding 26 'engaged in the barrel 22'". More specifically, the outer peripheral edge of the membrane 32 '" is wedged by the ring 26' against the front wall 20. The membrane 32 'can be made of a permeable material entrainment gas and impermeable to the product fluid, but preferably, the membrane 32 "serves as a support for a partition 31" which can advantageously be positioned in its center. The membrane 32 '"is initially prestressed so that it naturally returns to its rest position. The fluid inside the reservoir 3 is thus subjected to a pressure exerted by the membrane 32'". The fluid 3 is thus continuously stressed in the direction of the dispensing orifice 21. It is easy to understand by looking at FIG. 8 that the membrane 32 '"wants to return to a position in which it is substantially pressed against the front wall 20. We can imagine that the membrane 32 '"has a flat or flat configuration in its rest position.
Dans ce sixième mode de réalisation représenté sur la figure 6, le distributeur présente une configuration sensiblement similaire à celle de la figure 7 : les mêmes références numériques ont été adoptées. La différence essentielle avec la figure 7 est que le piston 32" qui supporte la cloison perméable 31" n'est pas sollicité par un ressort. Au départ, lorsque le réservoir 3 est rempli, le piston peut reposer sur la douille 220. Ensuite, à mesure qu'il se vide, le piston est déplacé par le flux d'air sous pression qui pousse le piston et passe à travers la cloison. Avantageusement, la paroi interne 221 du fût 22" peut être formée avec des crans à la manière d'une crémaillère pour empêcher le piston de revenir en arrière. Les moyens de poussée de la paroi déplaçable du réservoir de produit fluide sont ici assurés par l'air chassé en écrasant le réservoir 10.In this sixth embodiment shown in Figure 6, the dispenser has a configuration substantially similar to that of Figure 7: the same reference numerals have been adopted. The essential difference with FIG. 7 is that the piston 32 "which supports the permeable partition 31" is not stressed by a spring. At the start, when the reservoir 3 is filled, the piston can rest on the socket 220. Then, as it empties, the piston is moved by the flow of pressurized air which pushes the piston and passes through the partition. Advantageously, the internal wall 221 of the barrel 22 "can be formed with notches in the manner of a rack to prevent the piston from turning back. The means for pushing the movable wall of the fluid reservoir are here provided by the expelled air by crushing the tank 10.
Dans les trois modes de réalisation des figures 6, 7 et 8, la cloison perméable 31", 31'" est associé aux moyens permettant de solliciter le produit fluide à l'intérieur du réservoir 3 en direction et au niveau de l'orifice de distribution 21. On peut toutefois imaginer des variantes de réalisation dans lesquelles la cloison perméable n'est pas solidaire, fixée ou constituée par les moyens permettant de refouler le produit fluide au niveau de l'orifice 21. Toutefois, il est préférable que la cloison se déplace en direction de l'orifice de distribution 21 de sorte que le gaz d'entraînement parcourt une distance plus courte dans le réservoir de produit fluide 3 au fur et à mesure de l'utilisation du distributeur. Le matériau utilisé pour la cloison perméable au gaz et imperméable au produit fluide peut avoir une strucure poreuse, de grille, de tamis ou de treillis en fonction du produit fluide à distribuer.In the three embodiments of FIGS. 6, 7 and 8, the permeable partition 31 ", 31 '" is associated with the means making it possible to urge the fluid product inside the reservoir 3 in the direction and at the level of the orifice. distribution 21. One can however imagine alternative embodiments in which the permeable partition is not integral, fixed or constituted by the means making it possible to discharge the fluid product at the orifice 21. However, it is preferable that the partition moves towards the dispensing orifice 21 so that the entraining gas travels a shorter distance in the fluid reservoir 3 as the dispenser is used. The material used for the gas permeable partition and impermeable to the fluid product may have a porous structure, grid, screen or lattice depending on the fluid product to be dispensed.
Grâce à l'invention, on dispose d'un distributeur biphasique gaz/liquide ou gaz/poudre de conception très simple, d'un prix de revient très faible et d'une utilisation aisée. Thanks to the invention, there is a two-phase gas / liquid or gas / powder distributor of very simple design, very low cost price and easy to use.

Claims

Revendications claims
1.- Distributeur de produit fluide comprenant :1.- Fluid product distributor comprising:
- un réservoir de gaz d'entraînement (10) pourvu de moyens d'actionnement (12') aptes à mettre le gaz contenu dans le réservoir sous pression, - un réservoir de produit fluide (3), et- a drive gas tank (10) provided with actuating means (12 ') capable of putting the gas contained in the tank under pressure, - a fluid product tank (3), and
- un orifice de distribution (21) destiné au passage d'un mélange constitué de gaz d'entraînement et de produit fluide, le réservoir de produit fluide (3) étant séparé du réservoir de gaz (10) par une cloison (31" ; 31'"), ladite cloison étant perméable au gaz et imperméable au produit fluide, de sorte que le gaz sous pression pénètre dans le réservoir de produit fluide (3) à travers la cloison et entraîne le produit fluide avec lui vers l'orifice de distribution, caractérisé en ce que le produit fluide est sollicité vers l'orifice de distribution par des moyens de poussée (32", 32'"), de sorte qu'il y a toujours du produit fluide au niveau de l'orifice de distribution lors de la distribution.- a dispensing orifice (21) intended for the passage of a mixture consisting of entrainment gas and of fluid product, the fluid product tank (3) being separated from the gas tank (10) by a partition (31 "; 31 '"), said partition being permeable to gas and impermeable to the fluid product, so that the pressurized gas enters the fluid reservoir (3) through the partition and carries the fluid product with it towards the orifice dispensing, characterized in that the fluid is urged towards the dispensing orifice by pushing means (32 ", 32 '"), so that there is always fluid at the dispensing orifice during distribution.
2.- Distributeur selon la revendication 1, dans lequel le réservoir de produit fluide comprend une paroi déplaçable (32" ; 32'") dans une direction correspondant à une diminution de volume dudit réservoir.2. A dispenser according to claim 1, wherein the fluid reservoir includes a movable wall (32 "; 32 '") in a direction corresponding to a decrease in volume of said reservoir.
• 3.- Distributeur selon la revendication 1 ou 2, dans lequel la cloison (31", 31'") est déplaçable par rapport à, et avantageusement vers, l'orifice de distribution.• 3. A dispenser according to claim 1 or 2, wherein the partition (31 ", 31 '") is movable relative to, and advantageously towards, the dispensing orifice.
4.- Distributeur selon la revendication 2 ou 2, dans lequel la cloison4. A dispenser according to claim 2 or 2, wherein the partition
(31" ; 31'") forme une partie de la paroi déplaçable.(31 "; 31 '") forms part of the movable wall.
5.- Distributeur selon l'une quelconque des revendications 2 à 4, dans lequel la cloison (31", 31'") est sollicitée élastiquement dans le sens d'une diminution du volume interne du réservoir de produit fluide. 5. A dispenser according to any one of claims 2 to 4, wherein the partition (31 ", 31 '") is resiliently biased in the direction of a decrease in the internal volume of the fluid reservoir.
6.- Distributeur selon l'une quelconque des revendications précédentes, dans lequel la cloison (31") est montée sur un piston racleur (32") en prise coulissante dans un cylindre (22"), ledit piston étant sollicité par un ressort (33).6. Dispenser according to any one of the preceding claims, in which the partition (31 ") is mounted on a scraper piston (32") in sliding engagement in a cylinder (22 "), said piston being biased by a spring ( 33).
7 '.- Distributeur selon l'une quelconque des revendications 1 à 5, dans lequel la cloison (31'") est montée sur une membrane élastique précontrainte (32'") adaptée à retourner vers une position de repos.7 ' . A dispenser according to any one of claims 1 to 5, in which the partition (31'") is mounted on a pre-stressed elastic membrane (32 '") adapted to return to a rest position.
8.- Distributeur selon l'une quelconque des revendications 2 à 6, dans lequel la paroi est déplaçable par le flux de gaz sous pression.8. A dispenser according to any one of claims 2 to 6, wherein the wall is movable by the flow of pressurized gas.
9.- Distributeur selon l'une quelconque des revendications précédentes, dans lequel la cloison du réservoir de produit fluide est située dans une zone d'étranglement (16) formée par le réservoir de gaz d'entraînement (1).9. A dispenser according to any one of the preceding claims, wherein the partition of the fluid reservoir is located in a throttling zone (16) formed by the drive gas reservoir (1).
10.- Distributeur selon l'une quelconque des revendications précédentes, dans lequel le réservoir de gaz (10) comprend un col (15), un embout (2" ; 2'") étant en prise étanche avec le col (15) du réservoir de gaz, ledit embout formant l'orifice de distribution (21), le réservoir de produit fluide (3) étant partiellement formé par ledit embout. 10. Dispenser according to any one of the preceding claims, in which the gas tank (10) comprises a neck (15), a nozzle (2 "; 2 '") being in sealed engagement with the neck (15) of the gas tank, said nozzle forming the dispensing orifice (21), the fluid reservoir (3) being partially formed by said nozzle.
EP03738187A 2002-03-26 2003-03-24 Fluid product dispenser Expired - Fee Related EP1497201B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0203923A FR2837800B1 (en) 2002-03-26 2002-03-26 FLUID PRODUCT DISPENSER
FR0203923 2002-03-26
PCT/FR2003/000927 WO2003080470A2 (en) 2002-03-26 2003-03-24 Fluid product dispenser

Publications (2)

Publication Number Publication Date
EP1497201A2 true EP1497201A2 (en) 2005-01-19
EP1497201B1 EP1497201B1 (en) 2005-12-07

Family

ID=27839288

Family Applications (1)

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EP03738187A Expired - Fee Related EP1497201B1 (en) 2002-03-26 2003-03-24 Fluid product dispenser

Country Status (8)

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EP (1) EP1497201B1 (en)
JP (1) JP2005527434A (en)
CN (1) CN1642828A (en)
BR (1) BR0308044A (en)
DE (1) DE60308914T2 (en)
ES (1) ES2253687T3 (en)
FR (1) FR2837800B1 (en)
WO (1) WO2003080470A2 (en)

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JP6208685B2 (en) * 2012-12-03 2017-10-04 アース製薬株式会社 Powder medicine injection device and powder medicine injection method
FR3014084B1 (en) * 2013-12-02 2016-05-27 Sainte Lucie DEVICE FOR CLOSING THE OPENING OF A BOTTLE
SE539148C2 (en) * 2015-01-30 2017-04-18 Ekberg Emballage Ab Multiple dosing device and magazine
CN105032717B (en) 2015-09-18 2017-10-17 京东方科技集团股份有限公司 A kind of sealant coating nozzles and frame enclosing gum coating apparatus
EP3162404B1 (en) 2015-10-29 2018-02-14 W & H Dentalwerk Bürmoos GmbH Dental device for delivering a powdery medium
CN107117395A (en) * 2016-02-24 2017-09-01 何瑞生 Facial mask separating dry space from moist space packaging structure

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CH358898A (en) * 1959-11-20 1961-12-15 Fernand Wutrich Lucien Medical insufflation inhaler
FR2038476A5 (en) * 1969-03-17 1971-01-08 Unicler
CH518744A (en) * 1970-01-30 1972-02-15 Ciba Geigy Ag Device for the application of powdery substances
CH532513A (en) * 1970-12-16 1973-01-15 Ciba Geigy Ag Spray packaging with a powdery substance
DE3742466C2 (en) * 1987-12-15 1993-12-02 Vorwerk Co Interholding Mixing device in spray cans for mixing suspensions containing solids
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Title
See references of WO03080470A3 *

Also Published As

Publication number Publication date
WO2003080470A3 (en) 2004-04-01
EP1497201B1 (en) 2005-12-07
DE60308914D1 (en) 2006-11-16
ES2253687T3 (en) 2006-06-01
WO2003080470A2 (en) 2003-10-02
FR2837800A1 (en) 2003-10-03
BR0308044A (en) 2004-12-21
FR2837800B1 (en) 2005-06-24
DE60308914T2 (en) 2006-12-21
JP2005527434A (en) 2005-09-15
CN1642828A (en) 2005-07-20

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