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)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (2)

Family

ID=27839288

Family Applications (1)

Country Status (8)

Cited By (3)

Families Citing this family (5)

Citations (7)

Family Cites Families (3)

• 2002
  • 2002-03-26 FR FR0203923A patent/FR2837800B1/fr not_active Expired - Fee Related
• 2003
  • 2003-03-24 DE DE60308914T patent/DE60308914T2/de not_active Expired - Fee Related
  • 2003-03-24 CN CN 03806817 patent/CN1642828A/zh active Pending
  • 2003-03-24 EP EP03738187A patent/EP1497201B1/fr not_active Expired - Lifetime
  • 2003-03-24 JP JP2003578245A patent/JP2005527434A/ja not_active Withdrawn
  • 2003-03-24 BR BR0308044-7A patent/BR0308044A/pt not_active IP Right Cessation
  • 2003-03-24 WO PCT/FR2003/000927 patent/WO2003080470A2/fr active IP Right Grant
  • 2003-03-24 ES ES03738187T patent/ES2253687T3/es not_active Expired - Lifetime

Patent Citations (7)

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