EP1747815A1 - Adapting a dispenser to produce foam - Google Patents

Adapting a dispenser to produce foam Download PDF

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Publication number
EP1747815A1
EP1747815A1 EP06291209A EP06291209A EP1747815A1 EP 1747815 A1 EP1747815 A1 EP 1747815A1 EP 06291209 A EP06291209 A EP 06291209A EP 06291209 A EP06291209 A EP 06291209A EP 1747815 A1 EP1747815 A1 EP 1747815A1
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EP
European Patent Office
Prior art keywords
duct
conduit
expulsion
pumping
tube
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
EP06291209A
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German (de)
French (fr)
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EP1747815B1 (en
EP1747815B8 (en
Inventor
Francis Poizot
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Individual
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Individual
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Publication of EP1747815B1 publication Critical patent/EP1747815B1/en
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Publication of EP1747815B8 publication Critical patent/EP1747815B8/en
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K5/00—Holders or dispensers for soap, toothpaste, or the like
    • A47K5/14—Foam or lather making devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/0018—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam
    • B05B7/0025—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam with a compressed gas supply
    • B05B7/0031—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam with a compressed gas supply with disturbing means promoting mixing, e.g. balls, crowns
    • B05B7/0037—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam with a compressed gas supply with disturbing means promoting mixing, e.g. balls, crowns including sieves, porous members or the like
    • 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
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
    • 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
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1087—Combination of liquid and air pumps
    • 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
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1098—Air being permanently entrapped or sucked into the liquid pump chamber

Definitions

  • the invention relates to the field of devices for producing foam by pumps operating on the basis of foaming liquid. It relates more particularly to a device that adapts to non-specific pumps for the production of foam and allows them to produce foam from a foaming liquid.
  • Foam is used for many applications, for example as a styling foam, as a detergent or as a body care.
  • the foam has several advantages over a gel of the same nature.
  • An example is that the foam has a higher penetrating power to the gel and rinses more easily.
  • the foam is a ready-to-use product unlike a gel that needs to be mixed with water, for example, in a container or on the skin.
  • Another advantage is that there is no loss when applying the foam that is compact, unlike a gel that is less obvious to apply, for example, on the skin. The use of foam is therefore more economical.
  • the object of the present invention is to propose a device that adapts to pumps for liquid product, enabling them to produce foam.
  • a diameter matching member is connected between the pump inlet and the first end of the supply conduit.
  • the supply duct is made by an elbow tube having a right plunging portion and then a bend and a right emergent portion, the elbow being below the level of the foaming liquid and the suction hole being made in the elbow.
  • the supply duct is made of three tubular fitted parts, being an elbow, a dip tube and an emergent tube, the U-bend having two connection ends and a suction hole, the dip tube being connected to the pumping input and at a first end of the elbow, the emerging tube being connected to the second end of the elbow and emerging in the air.
  • a rigid member connects the reservoir to a portion of the emerging tube in the air within the reservoir.
  • a rigid member connects a portion of the dip tube to a portion of the emerging tube in the air within the reservoir.
  • the emerging tube opens into the air outside the tank via a valve through the wall of the tank.
  • the ratio between the diameter of the hole and the mean diameter of the supply duct has a determined value.
  • At least one additional refining gate is placed in the expulsion conduit, so as to obstruct the expulsion conduit.
  • an expansion grid is placed at the outlet of the expulsion duct, so as to obstruct the expulsion duct.
  • the part of the enlargement grid obstructing the duct is composed of three horizontal blades.
  • the part of the enlargement grid, obstructing the conduit is composed of two blades forming a cross.
  • the pump comprises an inlet (301) and a pumping outlet (302).
  • the pumping device comprises a chamber (3) for pumping.
  • the pumping chamber (3) is cylindrical in shape and narrows at its lower end by a cone.
  • the pump inlet (301) is at the end of the cone.
  • the inlet (301) comprises a ball valve (3001) which controls the opening towards the lower part of the chamber (3) for pumping.
  • the chamber (3) is closed at its upper end by a double piston (3004, 3003, 3005, 3006, 3009).
  • the double piston (3004, 3003, 3005, 3006, 3009) is so named because it comprises a central portion (3003) in sliding pivot connection, over a predetermined length with a peripheral portion (3004).
  • the outer edges of the peripheral portion (3004) of the double piston (3004, 3003, 3005, 3006, 3009) have a "V" profile and are pressed against the wall of the chamber (3), thereby providing double guiding piston (3004, 3003, 3005, 3006, 3009) and forming a tight connection.
  • the central portion (3003) has an upper flange (3005) and a lower flange (3006) being translational stops in translation of the peripheral portion (3004).
  • the connection between the central portion (3003) and the peripheral portion (3004) is sealed.
  • the central portion (3003) is tubular and hollow and includes one or more ports (302) that form the pump outlet.
  • the interior of the central part (3003) communicates with the interior of the chamber (3) pumping by this or these orifices (302), when the portion (3004) peripheral does not abut on the flange (3006) low.
  • a return spring (3007) is placed in the pumping chamber (3) and bears against abutments (3008) of the pumping chamber (3) at its lower part. The upper part of the spring bears on a pin (3009) formed on the portion (3003) of the central double piston (3004, 3003, 3005, 3006, 3009).
  • FIG. 1 A non-limiting example of the structure of the adaptation device is shown in Figure 1.
  • the means (3000) for pumping an example of which has been described above, is symbolized by a frame (3000). Only the pump outlet (302) and the pump inlet (301) are shown.
  • a supply duct (1) is connected to the pump on the pump inlet (301).
  • This duct (1) has a plunging portion (104), a bent portion (102) and an emergent portion (101).
  • the plunging portion (104) drops below the level (11) of the foaming liquid (10). It is extended by an elbow (102) in which a suction hole (103) is made.
  • the suction hole (103) forms the inlet of the foaming liquid.
  • the suction hole is made at a position corresponding to the bottom of the tank (8a, 8b) so that the foaming liquid (10) can, as long as possible, be sucked by this hole (103).
  • the hole (103) is formed on the side of the bend (102) so as not to be in contact with any impurities or agglomerations in the bottom of the tank (8a, 8b).
  • the elbow (102) is extended by an emergent portion (101) that rises above the level (11) of foaming liquid (10) and emerges into the air (12) within the reservoir (8a, 8b).
  • a rigid holding piece (105) is attached to the pumping device (3000) and to the upper part of an emergent portion (101) of the supply conduit (1). This device (105) for holding is intended to keep the end of the duct (1) of supply in the air, in the case where the duct (1) is made of a flexible material.
  • the emergent tube emerges in the air outside the tank (8a, 8b), via a valve (1020) passing through the wall of the upper part of the tank (8a).
  • a valve (1020) passing through the wall of the upper part of the tank (8a).
  • the tube (102) is held by a fitting in or on the valve (1020).
  • the valve (1020) creates an air inlet in the pipe (102), while preventing a flow of fluid exiting the pipe (102).
  • the embodiment is more complicated because it requires making a hole in the upper part of the tank (8a).
  • the valve is placed in the hole in a sealed manner, which represents an additional constraint.
  • the flapper increases the cost of the device.
  • This embodiment is given by way of non-limiting example and has an operation equivalent to that of a pipe emerging in the air (12) inside the tank (8a, 8b).
  • a pipe emerging in the air (12) inside the tank (8a, 8b) is given by way of non-limiting example and has an operation equivalent to that of a pipe emerging in the air (12) inside the tank (8a, 8b).
  • the supply duct (1) is composed of three parts: a U-shaped bend (103), a first plunger tube (104) and a second (101) tube emerging.
  • the elbow is connected to the two tubes (101, 104) and has a suction hole (103) formed, in a non-limiting manner at a 45 degree angle.
  • the plunger tube (104) is further connected to the pump inlet (301).
  • the emerging tube (101) opens into the air (12).
  • the suction hole is not present and is replaced by a small amount of diffusion device.
  • this diffusion device comprises a valve located above a hole of determined size and shape.
  • the duct is made in three parts, the diffusion device being in the tubular elbow (103).
  • a non-specific foam pump can be easily modified according to the invention to become a foam pump.
  • the liquid (10) is sucked into the pumping chamber (3) through the pump inlet (301) which is connected to a dip tube whose end comes below the level (11) of the foaming liquid (10).
  • this dip tube is disengaged from the pumping inlet (301) and replaced, for example, by an elbow feed pipe (1) according to the invention.
  • the disengagement and the interlocking of the conduit (1) supply according to the invention are manually, without difficulty, in the portable pumps.
  • the dip tube, present in the original pump, is no longer present because it has been replaced by the conduit (1) supply according to the invention.
  • the conduit (1) supply according to the invention, is set up, by means, directly on the inlet (301) pumping.
  • the structure of the adaptation device also comprises, in a nonlimiting manner, one or more grids (2, 201, 6), as represented in FIGS. 1 and 4.
  • the outlet (302) pumping out into an expulsion conduit (4) which ends with a head (5) projection.
  • the filtering grid (2) is placed in the expulsion duct (4).
  • the mesh size of the grid (2) will be detailed later.
  • a round grid, of the same diameter as a conduit (4) for circular expulsion is positioned across the conduit (4) expulsion perpendicular to the direction of flow.
  • the expulsion duct (4) is thus obstructed, that is to say that the filtering grid (2) occupies the entire duct without sealing it hermetically.
  • an oval grating is placed obliquely in a circular expulsion conduit (4).
  • the dimensions of this oval grid correspond to those of the circular duct, so that the grid bears on the entire inner periphery of the duct (4) expulsion.
  • the oval grille obstructs the duct (4) expulsion.
  • an expulsion conduit (4) having an indeterminate and rounded shape is associated with a flexible grid which conforms to the shape of the expulsion conduit (4), obstructing the conduit (4).
  • one or more additional grids (201) for filtering are added in the expulsion conduit (4), across the expulsion conduit (4).
  • additional grids (201) are placed after the first filtering grid (2), according to the direction of flow of the fluid in the expulsion conduit (4).
  • several additional grids (201) for filtering are added in the expulsion conduit (4).
  • a space remains between each grid.
  • a spacer (202) is placed between two grids (201, 2).
  • two grids are placed one above the other, joined, and are equivalent to a finer grid.
  • an enlargement grid (6) is added to the projection head (5). This last grid (6) is intended, but not limited to regulating the flow, widen the jet or change the structure of the jet.
  • the various grids (2, 201, 6) are held in the pump, in a nonlimiting manner by clamping or gluing.
  • the filtering grid (2) has one or more degrees of freedom with respect to the pipe (4) for expulsion of the pump and obstructs the conduit (4) for expulsion, whatever its position.
  • the pumping device expels the fluid through a pump outlet (302) connected to an expulsion conduit.
  • the expulsion duct is disassembled and a filtering grid (2) is fitted into the duct so as to obstruct it.
  • Another embodiment is to fix the grid in the duct by gluing.
  • the projection head (5) is located approximately 4 cm from the pumping outlet (302) and the pipe is composed of three parts, as shown in FIG. 4. It is therefore possible to insert several filter grids with a space between each grid. In a nonlimiting manner, the grids are held tight in the duct or fixed by gluing. In another embodiment, two grids are held apart from each other by a spacer (202). In an industrial process, the filter grids (2, 201) are inserted into the expulsion duct (4) before or during the assembly of the pump.
  • the pumps comprise a pump drawing liquid through a dip tube and expelling the liquid through a conduit (4) for expulsion ending in a head (5) projection.
  • the user actuates the pump manually by pressing on the head (7) of the pump.
  • the liquid, such as soap, is pumped in half time.
  • the first phase shown in Figure 2, is a phase of expulsion of the contents of a chamber (3) pumping.
  • the first phase takes place when pressing on the head (7) of the pump.
  • the second phase shown in Figure 3 is the filling of the chamber (3) pumping. This phase takes place when the piston returns to the initial position.
  • a spring compressed during the first phase exerts a force in the second phase, allowing the reassembly of the double piston (3004, 3003, 3005, 3006, 3009).
  • a double arrow symbolizes the movement of the double piston (3004, 3003, 3005, 3006, 3009) relative to the chamber (3) and a single arrow symbolizes the displacement of the fluid.
  • the chamber (3) has two openings for fluid circulation: a pump inlet (301) and a pump outlet (302).
  • the openings (301, 302) are associated with an opening and closing system allowing the fluid to pass only in one direction.
  • valves control the opening of the inlet (301) and the outlet (302) pumping.
  • a system (3001) using a ball prevents, in the first phase, the fluid out of the chamber (3) pumping but let the liquid enter, in the second phase.
  • the ball is held between lateral stops (3008), an upper stop and the opening of the chamber (3).
  • the upper stop is made in this example by a bearing surface of the spring.
  • the double piston (3004, 3003, 3005, 3006, 3009) has a similar role for the pump outlet (302). It opens the pumping outlet (302) during the expulsion phase, shown in FIG. 2, and it blocks the pumping outlet (302) during the suction phase, shown in FIG. or the closing of the pumping outlet are related to the movements of the piston.
  • the movable part (3004) of the double piston is pushed upwards, on the one hand because of the frictional forces of the chamber (3) on the moving part (3004) and secondly because of the pressure exerted by the fluid.
  • the moving part thus moves upwards with respect to the piston (3004, 3003, 3005, 3006, 3009) and opens the central passage (302).
  • the movable portion (3004) is then resting on the flange (3005) of the upper double piston (3004, 3003, 3005, 3006, 3009) and therefore exerts pressure on the liquid contained in the chamber.
  • the liquid is then expelled through the central passage (302).
  • the double piston rises under the action of the spring (3007), but its movable portion (3004) is retained by the friction forces exerted by the chamber (3) on the moving part.
  • This moving part (3004) then descends, with respect to the double piston (3004, 3003, 3005, 3006, 3009) and comes to bear on the flange (3006) low, thus blocking the opening (302) central.
  • the rise of the double piston (3004, 3003, 3005, 3006, 3009) then creates a suction in the chamber (3).
  • a pumping device as shown in Figures 2 and 3 is associated with a structure according to the invention, shown in Figure 1, without limitation.
  • the foaming liquid is first drawn through the suction hole (103) together with the air (12) from the portion of the pipe above the level (11) of the liquid (10).
  • the emulsion begins as soon as the foaming liquid (10) is sucked by this hole (103).
  • the conduit (1) supply therefore contains only air before the bend in which is formed the hole (103) suction.
  • the supply duct (1) contains a mixture of air and foaming liquid. This mixture is then stirred in the pumping chamber (3).
  • a coarse emulsion is then in the chamber.
  • the fluid is then filtered and emulsified more firmly by a filtering grid (2) at the outlet of the pumping chamber (3), in order to obtain foam after the grid (2).
  • the foam is then expelled by the projection head and the enlargement grid.
  • the foam production process is also based on one or more grids (201, 6). These are on the one hand additional grids (201) filtering for tamping the foam and secondly gates (6) for regulation or enlargement. These optional grids are added if the structure of the pump allows it.
  • the grid or grids (201) added to compact the foam make it possible to have a more dense foam.
  • These grids (201) for additional filtering are placed, according to a nonlimiting example, one after the other, in the conduit (4) of expulsion with a space between each of the grids. Each of these grids cup the foam, which becomes more and more dense.
  • the mesh of the grids (201) additional is increasingly thin.
  • a removable grid (6) widening or regulating the flow adapts, without limitation, on the head (5) projection. It makes it possible to modify the structure of the foam or, respectively, to regulate the flow of foam.
  • nonlimiting examples are: a plastic ring having equidistant parallel blades or a ring having two cross blades, in order to separate the foam jet.
  • the adaptation device according to the invention is composed of several elements that fit on non-specific pumps for the production of foam.
  • the elements added to a pump have dimensions within a functional range.
  • the variation of the dimensions makes it possible to obtain different structures of the foam or different flow rates.
  • the dimensions also depend on the foaming liquid, depending on whether it is more or less foaming or more or less diluted.
  • the diameter of the suction hole of the foaming liquid in the feed duct (1) depends on the viscosity of the foaming liquid (1). The more viscous the liquid, the larger the diameter of the hole. For the same liquid, different diameters of the hole are possible.
  • the maximum size is the size limit for which, when the pump is at rest, it there is no rise of the foaming liquid in the conduit (1) supply. Beyond this maximum size, when the pump is at rest, the liquid rises in the supply duct (1), arriving in a nonlimiting manner up to the level (11) of the liquid (10) foaming in the reservoir ( 8a, 8b).
  • the minimum size is the size below which the foaming liquid is not sucked during pumping.
  • the size of the diameter of the suction hole (103) partly determines the nature of the foam. The larger the diameter, the greater the proportion of foaming product in the foam will be important.
  • the diameter of the supply duct (1) also has an influence in the production of the foam. The smaller the average diameter, the more sucked air will be braked. The air flow sucked by pumping the pump, will be slower.
  • the velocity of the air (12) at the suction hole (103) influences the amount of liquid sucked. Without limitation and remaining within operating ranges, the greater the average diameter of the duct (1) supply, the greater the proportion of air (12) contained in the foam, and the more the foam will be light . Conversely, the feed conduit (1) has a maximum average diameter.
  • the air does not pass quickly enough to the hole (103) to create a phenomenon of suction of the liquid (10) foaming through the hole (103) suction.
  • the ratio between the size of the hole (103) and the diameter of the pipe must be judiciously adapted.
  • the inner diameter of the feed duct may vary from 3 mm to 15 mm and the diameter of the suction hole may vary from 1 mm to 5 mm. These examples of diameters are functional but depend on the product used.
  • the filter grid also has a role in the nature of the foam. Its dimensions affect the fineness of the foam and therefore its density. The more the grid (2) of filtering will have a fine mesh, the more the foam will be dense. On the other hand, in a nonlimiting manner, the mesh size of the grid is a function of the dimensions of the other elements and also of the dilution of the foaming liquid (10). In another exemplary embodiment, additional filtering grids (201) are added in the expulsion conduit (4). Of In a nonlimiting manner, the mesh sizes of the filtering grids (2, 201) are chosen from the first filtering grid (2) to the last additional filtering grid (201), the last additional grid being the closest to the head (5) projection.
  • a grid (6) movable widening is placed at the head (5) projection.
  • This grid (6) mobile allows the device to operate in two modes, with or without the grid (6).
  • the enlargement grid (6) allows either to widen the foam jet or to regulate the foam jet.
  • the foaming liquid becomes foam when it is mixed with water and is stirred.
  • the device according to the invention allows the production of foam without additional water supply.
  • the foaming liquid (10) contained in the reservoir (8a, 8b) therefore contains a product having foaming properties diluted with water.
  • the dilution of the foaming liquid is carried out according to a mixture comprising 20% to 80% water.
  • An example of an active agent is, for example, a styling element in a styling mousse.
  • the foaming liquid (10) is composed of an active agent, applied to the hair, a foaming agent and water.
  • the dilution is carried out according to the dimensions of the other elements of the device according to the invention.

Abstract

The device has a supply conduit (1) that is open at its ends in which one end is connected to an inlet (301) of a pumping chamber. A part of the conduit circulates below the level of a foaming liquid (10). The conduit is connected at the ends by keeping absolute separation between the interior and exterior of the conduit, except for a suction hole (103). The hole is provided in the conduit below the liquid level (11). The size of the hole is such that the liquid does not circulate via the hole, except during circulation of air in the conduit, at a speed greater than a preset speed.

Description

L'invention concerne le domaine des dispositifs de production de mousse par des pompes fonctionnant à base de liquide moussant. Elle concerne plus particulièrement un dispositif s'adaptant sur des pompes non spécifiques à la production de mousse et leur permettant de produire de la mousse à partir d'un liquide moussant.The invention relates to the field of devices for producing foam by pumps operating on the basis of foaming liquid. It relates more particularly to a device that adapts to non-specific pumps for the production of foam and allows them to produce foam from a foaming liquid.

La mousse est utilisée pour de nombreuses applications, par exemple comme mousse coiffante, comme détergeant ou comme soin pour le corps. La mousse possède plusieurs avantages par rapport à un gel de même nature. Un exemple est que la mousse a un pouvoir pénétrant supérieur au gel et se rince plus facilement. De plus la mousse est un produit prêt à l'emploi contrairement à un gel qui nécessite d'être mélangé avec de l'eau, par exemple, dans un récipient ou sur la peau. Un autre avantage est qu'il n'y a pas de perte lors de l'application la mousse qui est compacte, contrairement à un gel qui est moins évident à appliquer, par exemple, sur la peau. L'utilisation de la mousse est donc plus économique.Foam is used for many applications, for example as a styling foam, as a detergent or as a body care. The foam has several advantages over a gel of the same nature. An example is that the foam has a higher penetrating power to the gel and rinses more easily. In addition, the foam is a ready-to-use product unlike a gel that needs to be mixed with water, for example, in a container or on the skin. Another advantage is that there is no loss when applying the foam that is compact, unlike a gel that is less obvious to apply, for example, on the skin. The use of foam is therefore more economical.

Il existe des appareils portables et actionnés à la main produisant de la mousse. Des dispositifs fonctionnant avec un réservoir d'air sous pression et un réservoir de liquide moussant, sont des exemples connus de dispositifs. Ces appareils ont toutefois l'inconvénient de ne pas être rechargeables. Il existe d'autres appareils rechargeables pour produire de la mousse. Le brevet W02004078359 déposé par la société AIRSPRAY décrit notamment un appareil rechargeable disposant d'une pompe spéciale pour la production de mousse. Ce type d'appareil comporte néanmoins une pompe complexe qui nécessite de nombreux éléments et un assemblage complexe, en comparaison des pompes courantes pour produit liquide. Sa complexité implique donc que l'appareil est plus coûteux qu'une pompe classique rechargeable.There are portable and hand-operated devices producing foam. Devices operating with a pressurized air reservoir and a foaming liquid reservoir are known examples of devices. These devices have the disadvantage of not being rechargeable. There are other rechargeable devices to produce foam. The patent W02004078359 filed by the company AIRSPRAY describes including a rechargeable device with a special pump for the production of foam. This type of device, however, has a complex pump that requires many elements and a complex assembly, in comparison with the current pumps for liquid product. Its complexity therefore implies that the device is more expensive than a conventional rechargeable pump.

La présente invention a pour but de proposer un dispositif s'adaptant sur les pompes pour produit liquide, leur permettant de produire de la mousse.The object of the present invention is to propose a device that adapts to pumps for liquid product, enabling them to produce foam.

Cet objectif est atteint par un dispositif d'adaptation à la production de mousse, la pompe comportant au moins :

  • un réservoir contenant du liquide moussant et de l'air,
  • un moyen de pompage aspirant d'une part un fluide par une entrée de pompage et d'autre part expulsant ce fluide par une sortie de pompage,
  • un conduit d'expulsion connecté à la sortie de pompage, caractérisé en ce qu'il comprend :
  • un conduit d'alimentation ouvert à ses deux extrémités, dont la première extrémité est connectée à l'entrée de la chambre de pompage, dont la deuxième extrémité débouche dans l'air contenu dans le réservoir ou à l'extérieur du réservoir, une partie du conduit d'alimentation circulant en dessous du niveau de liquide moussant et le conduit d'alimentation relie ses deux extrémités en maintenant une séparation absolue entre l'intérieur et l'extérieur du conduit à l'exception d'au moins une autre ouverture qui est un trou d'aspiration réalisé dans le conduit d'alimentation en dessous du niveau du liquide, la taille du trou d'aspiration étant telle que le liquide ne circule pas par le trou sauf lors d'une circulation de l'air dans le conduit d'alimentation, à une vitesse supérieure à une vitesse déterminée.
  • une grille de filtrage obstruant le conduit d'expulsion.
This objective is achieved by a device for adaptation to the production of foam, the pump comprising at least:
  • a tank containing foaming liquid and air,
  • a pumping means sucking on the one hand a fluid by a pumping inlet and on the other hand expelling this fluid by a pumping outlet,
  • an expulsion duct connected to the pumping outlet, characterized in that it comprises:
  • a feed duct open at both ends, the first end of which is connected to the inlet of the pumping chamber, the second end of which opens into the air contained in the reservoir or outside the reservoir, a part the supply duct flowing below the level of foaming liquid and the supply duct connects its two ends while maintaining an absolute separation between the inside and the outside of the duct except for at least one other opening which is a suction hole made in the supply duct below the level of the liquid, the size of the suction hole being such that the liquid does not flow through the hole except during a circulation of air in the feed duct, at a speed greater than a determined speed.
  • a filtering grid obstructing the expulsion duct.

Selon une autre particularité, un élément d'adaptation du diamètre est connecté entre l'entrée de pompage et la première extrémité du conduit d'alimentation.In another feature, a diameter matching member is connected between the pump inlet and the first end of the supply conduit.

Selon une autre particularité, le conduit d'alimentation est réalisé par un tube coudé comportant une partie plongeante droite puis un coude puis une partie émergeante droite, le coude étant sous le niveau du liquide moussant et le trou d'aspiration étant réalisé dans le coude.According to another feature, the supply duct is made by an elbow tube having a right plunging portion and then a bend and a right emergent portion, the elbow being below the level of the foaming liquid and the suction hole being made in the elbow. .

Selon une autre particularité, le conduit d'alimentation est réalisé, en trois parties tubulaires emmanchées, étant un coude, un tube plongeur et un tube émergeant, le coude en U comportant deux extrémités de connexion et un trou d'aspiration, le tube plongeur étant connecté à l'entrée de pompage et à une première extrémité du coude, le tube émergeant étant connecté à la deuxième extrémité du coude et émergeant dans l'air.According to another feature, the supply duct is made of three tubular fitted parts, being an elbow, a dip tube and an emergent tube, the U-bend having two connection ends and a suction hole, the dip tube being connected to the pumping input and at a first end of the elbow, the emerging tube being connected to the second end of the elbow and emerging in the air.

Selon une autre particularité, un élément rigide relie le réservoir à une partie du tube émergeant se trouvant dans l'air à l'intérieur du réservoir.In another feature, a rigid member connects the reservoir to a portion of the emerging tube in the air within the reservoir.

Selon une autre particularité, un élément rigide relie une partie du tube plongeur à une partie du tube émergeant se trouvant dans l'air à l'intérieur du réservoir.In another feature, a rigid member connects a portion of the dip tube to a portion of the emerging tube in the air within the reservoir.

Selon une autre particularité, le tube émergeant débouche dans l'air à l'extérieur du réservoir par l'intermédiaire d'un clapet traversant la paroi du réservoir.According to another feature, the emerging tube opens into the air outside the tank via a valve through the wall of the tank.

Selon une autre particularité, le rapport entre le diamètre du trou et le diamètre moyen du conduit d'alimentation a une valeur déterminée.According to another feature, the ratio between the diameter of the hole and the mean diameter of the supply duct has a determined value.

Selon une autre particularité, au moins une grille supplémentaire d'affinage est placée dans le conduit d'expulsion, de façon à obstruer le conduit d'expulsion.According to another feature, at least one additional refining gate is placed in the expulsion conduit, so as to obstruct the expulsion conduit.

Selon une autre particularité, une grille d'élargissement est placée à la sortie du conduit d'expulsion, de façon à obstruer le conduit d'expulsion.According to another feature, an expansion grid is placed at the outlet of the expulsion duct, so as to obstruct the expulsion duct.

Selon une autre particularité, la partie de la grille d'élargissement, obstruant le conduit est composée de trois lames horizontales.According to another feature, the part of the enlargement grid obstructing the duct is composed of three horizontal blades.

Selon une autre particularité, la partie de la grille d'élargissement, obstruant le conduit est composée de deux lames formant une croix.According to another feature, the part of the enlargement grid, obstructing the conduit is composed of two blades forming a cross.

D'autres particularités et avantages de la présente invention apparaîtront plus clairement à la lecture de la description ci-après, faite en référence aux dessins annexés, dans lesquels :

  • la figure 1 représente l'ensemble du dispositif d'adaptation ;
  • la figure 2 représente la configuration d'une pompe en phase d'expulsion ;
  • la figure 3 représente la configuration d'une pompe en phase d'aspiration ;
  • la figure 4 représente un conduit d'expulsion dans lequel ont été insérés des grilles de filtrage ;
  • la figure 5 représente un coude (102) tubulaire en U dans le cas d'un conduit (1) d'alimentation en trois parties (101, 102, 104).
Other features and advantages of the present invention will appear more clearly on reading the description below, made with reference to the accompanying drawings, in which:
  • Figure 1 shows the assembly of the adaptation device;
  • FIG. 2 represents the configuration of a pump in the expulsion phase;
  • Figure 3 shows the configuration of a pump in the suction phase;
  • FIG. 4 represents an expulsion duct into which filter grids have been inserted;
  • Figure 5 shows a U-shaped tubular bend (102) in the case of a three-part feed conduit (101, 102, 104).

L'invention va être décrite en référence aux figures 1 à 5. La structure va maintenant être décrite ; le procédé de production de la mousse fonctionnant grâce à cette structure sera décrit par la suite. Un exemple de dispositif de pompage non spécifique à la production de mousse, est donné aux figures 2 et 3. La pompe comprend une entrée (301) et une sortie (302) de pompage. De manière non limitative, le dispositif de pompage, selon un exemple de réalisation particulière comprend une chambre (3) de pompage. La chambre (3) de pompage est de forme cylindrique et se rétrécit à son extrémité inférieure par un cône. L'entrée (301) de pompage se trouve à l'extrémité du cône. L'entrée (301) comporte un clapet (3001) à bille qui contrôle l'ouverture vers la partie inférieure de la chambre (3) de pompage. La chambre (3) est fermée à son extrémité supérieure par un double piston (3004, 3003, 3005, 3006, 3009). Le double piston (3004, 3003, 3005, 3006, 3009) est nommé ainsi car il comprend une partie (3003) centrale en liaison pivot glissant, sur une longueur déterminée avec une partie (3004) périphérique. Les bords extérieurs de la partie (3004) périphérique du double piston (3004, 3003, 3005, 3006, 3009) ont un profil en « V » et sont plaqués contre la paroi de la chambre (3), réalisant ainsi un guidage du double piston (3004, 3003, 3005, 3006, 3009) et formant une liaison étanche. La partie (3003) centrale comporte une collerette (3005) supérieure et une collerette (3006) inférieure étant des butées d'arrêt en translation de la partie (3004) périphérique. La liaison entre la partie (3003) centrale et la partie (3004) périphérique est étanche. L'étanchéité est renforcée lorsque la partie (3004) périphérique se trouve en butée sur une collerette (3005, 3006), la partie périphérique étant alors compressée et déformée. La partie (3003) centrale est tubulaire et creuse et comprend un ou plusieurs orifices (302) qui forment la sortie de pompage. L'intérieur de la partie (3003) centrale communique avec l'intérieur de la chambre (3) de pompage par ce ou ces orifices (302), lorsque la partie (3004) périphérique n'est pas en butée sur la collerette (3006) basse. Un ressort (3007) de rappel est placé dans la chambre (3) de pompage et est en appui sur des butées (3008) de la chambre (3) de pompage, au niveau de sa partie inférieure. La partie supérieure du ressort vient en appui sur un téton (3009) formé sur la partie (3003) centrale du double piston (3004, 3003, 3005, 3006, 3009).The invention will be described with reference to Figures 1 to 5. The structure will now be described; the method of producing the foam operating with this structure will be described later. An example of a non-specific pumping device for producing foam is given in FIGS. 2 and 3. The pump comprises an inlet (301) and a pumping outlet (302). In a nonlimiting manner, the pumping device, according to a particular embodiment, comprises a chamber (3) for pumping. The pumping chamber (3) is cylindrical in shape and narrows at its lower end by a cone. The pump inlet (301) is at the end of the cone. The inlet (301) comprises a ball valve (3001) which controls the opening towards the lower part of the chamber (3) for pumping. The chamber (3) is closed at its upper end by a double piston (3004, 3003, 3005, 3006, 3009). The double piston (3004, 3003, 3005, 3006, 3009) is so named because it comprises a central portion (3003) in sliding pivot connection, over a predetermined length with a peripheral portion (3004). The outer edges of the peripheral portion (3004) of the double piston (3004, 3003, 3005, 3006, 3009) have a "V" profile and are pressed against the wall of the chamber (3), thereby providing double guiding piston (3004, 3003, 3005, 3006, 3009) and forming a tight connection. The central portion (3003) has an upper flange (3005) and a lower flange (3006) being translational stops in translation of the peripheral portion (3004). The connection between the central portion (3003) and the peripheral portion (3004) is sealed. Sealing is enhanced when the peripheral portion (3004) abuts a flange (3005, 3006), the peripheral portion then being compressed and deformed. The central portion (3003) is tubular and hollow and includes one or more ports (302) that form the pump outlet. The interior of the central part (3003) communicates with the interior of the chamber (3) pumping by this or these orifices (302), when the portion (3004) peripheral does not abut on the flange (3006) low. A return spring (3007) is placed in the pumping chamber (3) and bears against abutments (3008) of the pumping chamber (3) at its lower part. The upper part of the spring bears on a pin (3009) formed on the portion (3003) of the central double piston (3004, 3003, 3005, 3006, 3009).

Un exemple non limitatif de la structure du dispositif d'adaptation est représenté à la figure 1. Le moyen (3000) de pompage, dont un exemple a été décrit précédemment, est symbolisé par un cadre (3000). Seules la sortie (302) de pompage et l'entrée (301) de pompage sont représentées. Un conduit (1) d'alimentation est branché à la pompe, sur l'entrée (301) de pompage. Ce conduit (1) comporte une partie (104) plongeante, une partie (102) coudée et une partie (101) émergeante. La partie (104) plongeante descend en dessous du niveau (11) du liquide (10) moussant. Elle est prolongée par un coude (102) dans lequel est réalisé un trou (103) d'aspiration. Le trou (103) d'aspiration forme l'entrée du liquide moussant. Le trou d'aspiration est réalisé à une position correspondant au bas du réservoir (8a, 8b) afin que le liquide (10) moussant puisse, le plus longtemps possible, être aspiré par ce trou (103). De plus, le trou (103) est réalisé sur le côté du coude (102) afin de ne pas être en contact avec d'éventuelles impuretés ou agglomérations se trouvant dans le bas du réservoir (8a, 8b). Le coude (102) est prolongé par une partie (101) émergeante qui remonte au dessus du niveau (11) de liquide (10) moussant et émerge dans l'air (12) à l'intérieur du réservoir (8a, 8b). Une pièce (105) rigide de maintien est fixée au dispositif (3000) de pompage et à la partie haute d'une partie (101) émergeante du conduit (1) d'alimentation. Ce dispositif (105) de maintien a pour but de garder l'extrémité du conduit (1) d'alimentation dans l'air, dans le cas où ce conduit (1) est réalisé dans un matériau souple.A non-limiting example of the structure of the adaptation device is shown in Figure 1. The means (3000) for pumping, an example of which has been described above, is symbolized by a frame (3000). Only the pump outlet (302) and the pump inlet (301) are shown. A supply duct (1) is connected to the pump on the pump inlet (301). This duct (1) has a plunging portion (104), a bent portion (102) and an emergent portion (101). The plunging portion (104) drops below the level (11) of the foaming liquid (10). It is extended by an elbow (102) in which a suction hole (103) is made. The suction hole (103) forms the inlet of the foaming liquid. The suction hole is made at a position corresponding to the bottom of the tank (8a, 8b) so that the foaming liquid (10) can, as long as possible, be sucked by this hole (103). In addition, the hole (103) is formed on the side of the bend (102) so as not to be in contact with any impurities or agglomerations in the bottom of the tank (8a, 8b). The elbow (102) is extended by an emergent portion (101) that rises above the level (11) of foaming liquid (10) and emerges into the air (12) within the reservoir (8a, 8b). A rigid holding piece (105) is attached to the pumping device (3000) and to the upper part of an emergent portion (101) of the supply conduit (1). This device (105) for holding is intended to keep the end of the duct (1) of supply in the air, in the case where the duct (1) is made of a flexible material.

Dans un autre mode de réalisation, le tube émergeant émerge dans l'air à l'extérieur du réservoir (8a, 8b), par l'intermédiaire d'un clapet (1020) traversant la paroi de la partie supérieure du réservoir (8a). Un exemple de ce type de réalisation est donné à la figure 6. Dans ce mode de réalisation, le tube (102) est maintenu par un emmanchement dans ou sur le clapet (1020). Le clapet (1020) permet de créer une entrée d'air dans le tuyau (102), tout en empêchant une circulation du fluide sortant du tuyau (102). La réalisation est plus compliquée car elle nécessite de réaliser un trou dans la partie supérieure du réservoir (8a). Le clapet est placé dans le trou de manière étanche, ce qui représente une contrainte supplémentaire. D'autre part l'ajout d'une pièce supplémentaire (le clapet), augmente le coût du dispositif. Ce mode de réalisation est donné à titre d'exemple non limitatif et a un fonctionnement équivalent à celui d'un tuyau émergeant dans l'air (12) à l'intérieur du réservoir (8a, 8b). Toutefois dans la suite du brevet, on fera référence à un tube émergeant dans l'air à l'intérieur du réservoir (8a, 8b) afin de simplifier la description.In another embodiment, the emergent tube emerges in the air outside the tank (8a, 8b), via a valve (1020) passing through the wall of the upper part of the tank (8a). . An example of this type of embodiment is given in Figure 6. In this embodiment, the tube (102) is held by a fitting in or on the valve (1020). The valve (1020) creates an air inlet in the pipe (102), while preventing a flow of fluid exiting the pipe (102). The embodiment is more complicated because it requires making a hole in the upper part of the tank (8a). The valve is placed in the hole in a sealed manner, which represents an additional constraint. On the other hand the addition of an additional piece (the flapper), increases the cost of the device. This embodiment is given by way of non-limiting example and has an operation equivalent to that of a pipe emerging in the air (12) inside the tank (8a, 8b). However, in the following patent, reference will be made to a tube emerging in the air inside the tank (8a, 8b) to simplify the description.

Dans un autre mode de réalisation, comme représenté à la figure 5, le conduit (1) d'alimentation est composé de trois parties : un coude (103) en U, un premier tube (104) plongeur et un deuxième (101) tube émergeant. Le coude est connecté aux deux tubes (101, 104) et comporte un trou (103) d'aspiration réalisé, de manière non limitative selon un angle de 45 degrés. Le tube (104) plongeur est connecté d'autre part à l'entrée (301) de pompage. Le tube (101) émergeant débouche dans l'air (12). Selon un autre mode de réalisation, le trou d'aspiration n'est pas présent et est remplacé par un dispositif de diffusion en petite quantité. De manière non limitative ce dispositif de diffusion comporte un clapet se trouvant au dessus d'un trou de taille et de forme déterminées. Pour ce mode de réalisation comprenant un dispositif de diffusion, le conduit est réalisé en trois parties, le dispositif de diffusion se trouvant dans le coude (103) tubulaire.In another embodiment, as shown in FIG. 5, the supply duct (1) is composed of three parts: a U-shaped bend (103), a first plunger tube (104) and a second (101) tube emerging. The elbow is connected to the two tubes (101, 104) and has a suction hole (103) formed, in a non-limiting manner at a 45 degree angle. The plunger tube (104) is further connected to the pump inlet (301). The emerging tube (101) opens into the air (12). According to another embodiment, the suction hole is not present and is replaced by a small amount of diffusion device. In a nonlimiting manner, this diffusion device comprises a valve located above a hole of determined size and shape. For this embodiment comprising a diffusion device, the duct is made in three parts, the diffusion device being in the tubular elbow (103).

Dans un exemple d'utilisation, une pompe non spécifique à la production de mousse, peut être facilement modifiée selon l'invention pour devenir une pompe à mousse. Le liquide (10) est aspiré dans la chambre (3) de pompage par l'entrée (301) de pompage qui est reliée à un tube plongeur dont l'extrémité arrive en dessous du niveau (11) du liquide (10) moussant. Afin de mettre en place le dispositif selon l'invention, ce tube plongeur est déboîté de l'entrée (301) de pompage et remplacé, par exemple, par un conduit (1) d'alimentation coudé selon l'invention. Le déboîtement et l'emboîtement du conduit (1) d'alimentation selon l'invention, se font manuellement, sans difficulté, dans les pompes portables. Le tube plongeur, présent dans la pompe originale, n'est plus présent car il a été remplacé par le conduit (1) d'alimentation selon l'invention. Dans un processus industriel, le conduit (1) d'alimentation, selon l'invention, est mis en place, par des moyens, directement sur l'entrée (301) de pompage.In an example of use, a non-specific foam pump can be easily modified according to the invention to become a foam pump. The liquid (10) is sucked into the pumping chamber (3) through the pump inlet (301) which is connected to a dip tube whose end comes below the level (11) of the foaming liquid (10). In order to set up the device according to the invention, this dip tube is disengaged from the pumping inlet (301) and replaced, for example, by an elbow feed pipe (1) according to the invention. The disengagement and the interlocking of the conduit (1) supply according to the invention are manually, without difficulty, in the portable pumps. The dip tube, present in the original pump, is no longer present because it has been replaced by the conduit (1) supply according to the invention. In an industrial process, the conduit (1) supply, according to the invention, is set up, by means, directly on the inlet (301) pumping.

La structure du dispositif d'adaptation comprend également, de manière non limitative, une ou plusieurs grilles (2, 201, 6), comme représenté aux figures 1 et 4. Dans la structure des pompes non spécifiques à la production de mousse, la sortie (302) de pompage débouche dans un conduit (4) d'expulsion qui se termine par une tête (5) de projection. La grille (2) de filtrage est placée dans le conduit (4) d'expulsion. La taille du maillage de la grille (2) sera détaillée par la suite. Dans un exemple de réalisation, une grille ronde, de même diamètre qu'un conduit (4) d'expulsion circulaire, est positionnée en travers du conduit (4) d'expulsion, perpendiculaire à la direction du flux. Le conduit (4) d'expulsion est ainsi obstrué, c'est-à-dire que la grille (2) de filtrage occupe tout le conduit sans le boucher hermétiquement. Dans un autre exemple de réalisation une grille ovale est placée obliquement dans un conduit (4) d'expulsion circulaire. Les dimensions de cette grille ovale correspondent à celles du conduit circulaire, de sorte que la grille vienne en appui sur tout le pourtour intérieur du conduit (4) d'expulsion. De même que dans l'exemple précédent, la grille ovale vient obstruer le conduit (4) d'expulsion. Dans un autre exemple de réalisation un conduit (4) d'expulsion ayant une forme indéterminée et arrondie est associé à une grille souple qui épouse la forme du conduit (4) d'expulsion, venant obstruer le conduit (4). De manière non limitative une ou plusieurs grilles (201) de filtrage supplémentaires sont ajoutées dans le conduit (4) d'expulsion, en travers du conduit (4) d'expulsion. Ces grilles (201) supplémentaires sont placées après la première grille (2) de filtrage, selon le sens de circulation du fluide dans le conduit (4) d'expulsion. Dans un exemple de réalisation, plusieurs grilles (201) de filtrage supplémentaires sont ajoutées dans le conduit (4) d'expulsion. Un espace demeure entre chaque grille. Dans un mode de réalisation une entretoise (202) est placée entre deux grilles (201, 2). Dans un autre mode de réalisation, deux grilles sont placées l'une au dessus de l'autre, jointivement, et sont équivalentes à une grille plus fine. Dans un exemple de réalisation, une grille (6) d'élargissement est ajoutée sur la tête (5) de projection. Cette dernière grille (6) a pour but, de manière non limitative, de réguler le débit, d'élargir le jet ou de modifier la structure du jet. Les différentes grilles (2, 201, 6) sont maintenues dans la pompe, de manière non limitative par serrage ou par collage. Selon une variante de réalisation, la grille (2) de filtrage a un ou plusieurs degrés de liberté par rapport au conduit (4) d'expulsion de la pompe et obstrue le conduit (4) d'expulsion, quelque soit sa position.The structure of the adaptation device also comprises, in a nonlimiting manner, one or more grids (2, 201, 6), as represented in FIGS. 1 and 4. In the structure of the pumps that are not specific to the production of foam, the outlet (302) pumping out into an expulsion conduit (4) which ends with a head (5) projection. The filtering grid (2) is placed in the expulsion duct (4). The mesh size of the grid (2) will be detailed later. In an exemplary embodiment, a round grid, of the same diameter as a conduit (4) for circular expulsion, is positioned across the conduit (4) expulsion perpendicular to the direction of flow. The expulsion duct (4) is thus obstructed, that is to say that the filtering grid (2) occupies the entire duct without sealing it hermetically. In another embodiment, an oval grating is placed obliquely in a circular expulsion conduit (4). The dimensions of this oval grid correspond to those of the circular duct, so that the grid bears on the entire inner periphery of the duct (4) expulsion. As in the previous example, the oval grille obstructs the duct (4) expulsion. In another embodiment, an expulsion conduit (4) having an indeterminate and rounded shape is associated with a flexible grid which conforms to the shape of the expulsion conduit (4), obstructing the conduit (4). Without limitation, one or more additional grids (201) for filtering are added in the expulsion conduit (4), across the expulsion conduit (4). These additional grids (201) are placed after the first filtering grid (2), according to the direction of flow of the fluid in the expulsion conduit (4). In one embodiment, several additional grids (201) for filtering are added in the expulsion conduit (4). A space remains between each grid. In one embodiment a spacer (202) is placed between two grids (201, 2). In another embodiment, two grids are placed one above the other, joined, and are equivalent to a finer grid. In an exemplary embodiment, an enlargement grid (6) is added to the projection head (5). This last grid (6) is intended, but not limited to regulating the flow, widen the jet or change the structure of the jet. The various grids (2, 201, 6) are held in the pump, in a nonlimiting manner by clamping or gluing. According to an alternative embodiment, the filtering grid (2) has one or more degrees of freedom with respect to the pipe (4) for expulsion of the pump and obstructs the conduit (4) for expulsion, whatever its position.

Le dispositif de pompage expulse le fluide par une sortie (302) de pompage connectée à un conduit d'expulsion. Dans un exemple de réalisation, le conduit d'expulsion est démonté et une grille (2) de filtrage est emmanchée dans le conduit de façon à l'obstruer. Un autre mode de réalisation est de fixer la grille dans le conduit par collage. Dans un autre exemple de réalisation, la tête (5) de projection est située à environ 4 cm de la sortie (302) de pompage et le conduit est composé de trois pièces, comme représenté à la figure 4. II est donc possible d'insérer plusieurs grilles de filtrage avec un espace entre chaque grille. De manière non limitative, les grilles sont tenues serrées dans le conduit ou fixées par un collage. Dans un autre mode de réalisation, deux grilles sont maintenues éloignées l'une de l'autre par une entretoise (202). Dans un processus industriel, les grilles (2, 201) de filtrage sont insérées dans le conduit (4) d'expulsion avant ou pendant le montage de la pompe.The pumping device expels the fluid through a pump outlet (302) connected to an expulsion conduit. In an exemplary embodiment, the expulsion duct is disassembled and a filtering grid (2) is fitted into the duct so as to obstruct it. Another embodiment is to fix the grid in the duct by gluing. In another exemplary embodiment, the projection head (5) is located approximately 4 cm from the pumping outlet (302) and the pipe is composed of three parts, as shown in FIG. 4. It is therefore possible to insert several filter grids with a space between each grid. In a nonlimiting manner, the grids are held tight in the duct or fixed by gluing. In another embodiment, two grids are held apart from each other by a spacer (202). In an industrial process, the filter grids (2, 201) are inserted into the expulsion duct (4) before or during the assembly of the pump.

Le procédé de pompage va maintenant être décrit. Les pompes comportent une pompe puisant du liquide par un tube plongeur et expulsant le liquide par un conduit (4) d'expulsion se terminant par une tête (5) de projection. L'utilisateur actionne la pompe manuellement par une pression sur la tête (7) de la pompe. Le liquide, tel que du savon, est pompé en deux temps. La première phase, représentée à la figure 2, est une phase d'expulsion du contenu d'une chambre (3) de pompage. La première phase a lieu lors de l'appui sur la tête (7) de la pompe. La deuxième phase, représentée à la figure 3, est le remplissage de la chambre (3) de pompage. Cette phase a lieu lors du retour du piston à la position initiale. Un ressort compressé lors de la première phase, exerce une force dans la deuxième phase, permettant la remonté du double piston (3004, 3003, 3005, 3006, 3009). Sur les figures 2 et 3, une double flèche symbolise le mouvement du double piston (3004, 3003, 3005, 3006, 3009) par rapport à la chambre (3) et une flèche simple symbolise le déplacement du fluide.The pumping method will now be described. The pumps comprise a pump drawing liquid through a dip tube and expelling the liquid through a conduit (4) for expulsion ending in a head (5) projection. The user actuates the pump manually by pressing on the head (7) of the pump. The liquid, such as soap, is pumped in half time. The first phase, shown in Figure 2, is a phase of expulsion of the contents of a chamber (3) pumping. The first phase takes place when pressing on the head (7) of the pump. The second phase, shown in Figure 3, is the filling of the chamber (3) pumping. This phase takes place when the piston returns to the initial position. A spring compressed during the first phase, exerts a force in the second phase, allowing the reassembly of the double piston (3004, 3003, 3005, 3006, 3009). In Figures 2 and 3, a double arrow symbolizes the movement of the double piston (3004, 3003, 3005, 3006, 3009) relative to the chamber (3) and a single arrow symbolizes the displacement of the fluid.

La chambre (3) possède deux ouvertures pour la circulation du fluide : une entrée (301) de pompage et une sortie (302) de pompage. Les ouvertures (301, 302) sont associées à un système d'ouverture et de fermeture ne laissant passer le fluide que dans un sens. Dans un exemple de réalisation, des clapets contrôlent l'ouverture de l'entrée (301) et de la sortie (302) de pompage. Dans l'exemple de pompage, représenté aux figures 2 et 3, un système (3001) utilisant une bille empêche, dans la première phase, le fluide de sortir de la chambre (3) de pompage mais laisse le liquide entrer, dans la deuxième phase. La bille est maintenue entre des butées (3008) latérales, une butée supérieure et l'ouverture de la chambre (3). La butée supérieure est réalisée, dans cet exemple par une surface d'appui du ressort. A la figure 2, lorsque le liquide contenu dans la chambre (3), exerce une pression sur la bille, celle-ci se plaque contre le logement conique et bouche l'entrée (301) de pompage. A l'inverse, à la figure 3, la bille se soulève et laisse passer le fluide lorsqu'une aspiration dans la chambre (3) a lieu.The chamber (3) has two openings for fluid circulation: a pump inlet (301) and a pump outlet (302). The openings (301, 302) are associated with an opening and closing system allowing the fluid to pass only in one direction. In an exemplary embodiment, valves control the opening of the inlet (301) and the outlet (302) pumping. In the example of pumping, shown in Figures 2 and 3, a system (3001) using a ball prevents, in the first phase, the fluid out of the chamber (3) pumping but let the liquid enter, in the second phase. The ball is held between lateral stops (3008), an upper stop and the opening of the chamber (3). The upper stop is made in this example by a bearing surface of the spring. In FIG. 2, when the liquid contained in the chamber (3) exerts a pressure on the ball, it is pressed against the conical housing and closes the pumping inlet (301). Conversely, in FIG. 3, the ball lifts up and lets the fluid pass when suction in the chamber (3) takes place.

Le double piston (3004, 3003, 3005, 3006, 3009) a un rôle similaire pour la sortie (302) de pompage. Il ouvre la sortie (302) de pompage lors de la phase d'expulsion, représentée à la figure 2, et il bouche la sortie (302) de pompage lors de la phase d'aspiration, représentée à la figure 3. L'ouverture ou la fermeture de la sortie de pompage sont liées aux mouvements du piston. Lors d'un appui sur le double piston (3004, 3003, 3005, 3006, 3009), la partie (3004) mobile du double piston est poussée vers le haut, d'une part à cause des forces de frottement de la chambre (3) sur la partie (3004) mobile et d'autre part à cause de la pression exercée par le fluide. La partie mobile se déplace donc vers le haut, par rapport au piston (3004, 3003, 3005, 3006, 3009) et ouvre le passage (302) central. La partie (3004) mobile, se trouve alors en appui sur la collerette (3005) haute du double piston (3004, 3003, 3005, 3006, 3009) et exerce donc une pression sur le liquide contenu dans la chambre. Le liquide est alors chassé par le passage (302) central. Dans la phase d'aspiration, représentée à la figure 3, le double piston remonte sous l'action du ressort (3007), mais sa partie (3004) mobile est retenue par les forces de frottement exercées par la chambre (3) sur la partie mobile. Cette partie (3004) mobile descend alors, par rapport au double piston (3004, 3003, 3005, 3006, 3009) et vient en appui sur la collerette (3006) basse, bouchant ainsi l'ouverture (302) centrale. La remontée du double piston (3004, 3003, 3005, 3006, 3009) crée alors une aspiration dans la chambre (3).The double piston (3004, 3003, 3005, 3006, 3009) has a similar role for the pump outlet (302). It opens the pumping outlet (302) during the expulsion phase, shown in FIG. 2, and it blocks the pumping outlet (302) during the suction phase, shown in FIG. or the closing of the pumping outlet are related to the movements of the piston. When pressing on the double piston (3004, 3003, 3005, 3006, 3009), the movable part (3004) of the double piston is pushed upwards, on the one hand because of the frictional forces of the chamber (3) on the moving part (3004) and secondly because of the pressure exerted by the fluid. The moving part thus moves upwards with respect to the piston (3004, 3003, 3005, 3006, 3009) and opens the central passage (302). The movable portion (3004) is then resting on the flange (3005) of the upper double piston (3004, 3003, 3005, 3006, 3009) and therefore exerts pressure on the liquid contained in the chamber. The liquid is then expelled through the central passage (302). In the suction phase, shown in Figure 3, the double piston rises under the action of the spring (3007), but its movable portion (3004) is retained by the friction forces exerted by the chamber (3) on the moving part. This moving part (3004) then descends, with respect to the double piston (3004, 3003, 3005, 3006, 3009) and comes to bear on the flange (3006) low, thus blocking the opening (302) central. The rise of the double piston (3004, 3003, 3005, 3006, 3009) then creates a suction in the chamber (3).

Le procédé de production de la mousse selon l'invention va maintenant être décrit. Un dispositif de pompage, comme représenté aux figures 2 et 3 est associé à une structure selon l'invention, représentée à la figure 1, de manière non limitative. Le liquide moussant est tout d'abord aspiré par le trou (103) d'aspiration en même temps que l'air (12) provenant de la partie du tuyau située au dessus du niveau (11) du liquide (10). L'émulsion commence dès que le liquide (10) moussant est aspiré par ce trou (103). Le conduit (1) d'alimentation contient donc uniquement de l'air avant le coude dans lequel est réalisé le trou (103) d'aspiration. Dans le coude et après le coude, le conduit (1) d'alimentation contient un mélange d'air et de liquide moussant. Ce mélange est ensuite brassé dans la chambre (3) de pompage. Une émulsion grossière se trouve alors dans la chambre. Le fluide est ensuite filtré et émulsionné plus fermement par une grille (2) de filtrage en sortie de la chambre (3) de pompage, afin d'obtenir de la mousse après la grille (2). La mousse est ensuite expulsée par la tête de projection et la grille d'élargissement.The method of producing the foam according to the invention will now be described. A pumping device, as shown in Figures 2 and 3 is associated with a structure according to the invention, shown in Figure 1, without limitation. The foaming liquid is first drawn through the suction hole (103) together with the air (12) from the portion of the pipe above the level (11) of the liquid (10). The emulsion begins as soon as the foaming liquid (10) is sucked by this hole (103). The conduit (1) supply therefore contains only air before the bend in which is formed the hole (103) suction. In the elbow and after the elbow, the supply duct (1) contains a mixture of air and foaming liquid. This mixture is then stirred in the pumping chamber (3). A coarse emulsion is then in the chamber. The fluid is then filtered and emulsified more firmly by a filtering grid (2) at the outlet of the pumping chamber (3), in order to obtain foam after the grid (2). The foam is then expelled by the projection head and the enlargement grid.

Dans un exemple de réalisation, le procédé de production de mousse s'appuie également sur une ou plusieurs grilles (201, 6). Ce sont d'une part des grilles (201) supplémentaires de filtrage permettant de tasser la mousse et d'autre part des grilles (6) de régulation ou d'élargissement. Ces grilles optionnelles sont ajoutées si la structure de la pompe le permet. La ou les grilles (201) ajoutées pour tasser la mousse permettent d'avoir une mousse plus dense. Ces grilles (201) de filtrage supplémentaires sont placées, selon un exemple non limitatif, les unes à la suite des autres, dans le conduit (4) d'expulsion avec un espace entre chacune des grilles. Chacune de ces grilles tasse la mousse, qui devient de plus en plus dense. Dans un exemple de réalisation, le maillage des grilles (201) supplémentaires est de plus en plus fin. Une grille (6) amovible d'élargissement ou de régulation du débit s'adapte, de manière non limitative, sur la tête (5) de projection. Elle permet de modifier la structure de la mousse ou respectivement de réguler le débit de mousse. Dans l'exemple d'une grille (6) d'élargissement, des exemples non limitatifs sont : un anneau en plastique comportant des lames parallèles équidistantes ou un anneau comportant deux lames en croix, afin de séparer le jet de mousse. Ainsi, on aura par exemple, un jet multiple.In an exemplary embodiment, the foam production process is also based on one or more grids (201, 6). These are on the one hand additional grids (201) filtering for tamping the foam and secondly gates (6) for regulation or enlargement. These optional grids are added if the structure of the pump allows it. The grid or grids (201) added to compact the foam make it possible to have a more dense foam. These grids (201) for additional filtering are placed, according to a nonlimiting example, one after the other, in the conduit (4) of expulsion with a space between each of the grids. Each of these grids cup the foam, which becomes more and more dense. In an exemplary embodiment, the mesh of the grids (201) additional is increasingly thin. A removable grid (6) widening or regulating the flow adapts, without limitation, on the head (5) projection. It makes it possible to modify the structure of the foam or, respectively, to regulate the flow of foam. In the example of an enlargement grid (6), nonlimiting examples are: a plastic ring having equidistant parallel blades or a ring having two cross blades, in order to separate the foam jet. Thus, for example, there will be a multiple jet.

Les dimensions vont maintenant être décrites. Le dispositif d'adaptation selon l'invention est composé de plusieurs éléments qui s'adaptent sur des pompes non spécifiques à la production de mousse. Les éléments ajoutés à une pompe, ont des dimensions comprises dans une plage fonctionnelle. La variation des dimensions permet d'obtenir différentes structures de la mousse ou des débits différents. Les dimensions dépendent également du liquide moussant, selon qu'il est plus ou moins moussant ou plus ou moins dilué.The dimensions will now be described. The adaptation device according to the invention is composed of several elements that fit on non-specific pumps for the production of foam. The elements added to a pump, have dimensions within a functional range. The variation of the dimensions makes it possible to obtain different structures of the foam or different flow rates. The dimensions also depend on the foaming liquid, depending on whether it is more or less foaming or more or less diluted.

De manière non limitative, le diamètre du trou d'aspiration du liquide moussant dans le conduit (1) d'alimentation dépend de la viscosité du liquide (1) moussant. Plus le liquide est visqueux, plus le diamètre du trou a une taille importante. Pour un même liquide, différents diamètres du trou, sont possibles. On aura une taille minimum et une taille maximum. La taille maximum est la taille limite pour laquelle, lorsque la pompe est au repos, il n'y a pas de remontée du liquide moussant dans le conduit (1) d'alimentation. Au-delà de cette taille maximum, lorsque la pompe est au repos, le liquide remonte dans le conduit (1) d'alimentation, arrivant de manière non limitative jusqu'au niveau (11) du liquide (10) moussant dans le réservoir (8a, 8b). La taille minimum, est la taille en dessous de laquelle, le liquide moussant n'est pas aspiré, lors d'un pompage. La taille du diamètre du trou (103) d'aspiration détermine en partie la nature de la mousse. Plus le diamètre sera important, plus la proportion de produit moussant dans la mousse sera importante. Le diamètre du conduit (1) d'alimentation a également une influence dans la production de la mousse. Plus le diamètre moyen est étroit, plus l'air aspiré sera freiné. Le flux d'air aspiré par un pompage de la pompe, sera donc plus lent. La vitesse de l'air (12) au niveau du trou (103) d'aspiration influe sur la quantité de liquide aspiré. De manière non limitative et en restant dans des plages de fonctionnement, plus le diamètre moyen du conduit (1) d'alimentation est important, plus la proportion d'air (12) contenu dans la mousse, est importante et plus la mousse sera légère. A l'inverse le conduit (1) d'alimentation a un diamètre moyen maximum. Au delà de ce diamètre maximum, l'air ne passe plus assez vite devant le trou (103) pour créer un phénomène d'aspiration du liquide (10) moussant par le trou (103) d'aspiration. Ainsi il convient d'adapter judicieusement le rapport entre la taille du trou (103) et le diamètre du tuyau. A titre d'exemples non limitatifs, le diamètre intérieur du conduit d'alimentation peut varier de 3mm à 15mm et le diamètre du trou d'aspiration peut varier de 1 mm à 5mm. Ces exemples de diamètres sont fonctionnels mais dépendent du produit utilisé.Without limitation, the diameter of the suction hole of the foaming liquid in the feed duct (1) depends on the viscosity of the foaming liquid (1). The more viscous the liquid, the larger the diameter of the hole. For the same liquid, different diameters of the hole are possible. We will have a minimum size and a maximum size. The maximum size is the size limit for which, when the pump is at rest, it there is no rise of the foaming liquid in the conduit (1) supply. Beyond this maximum size, when the pump is at rest, the liquid rises in the supply duct (1), arriving in a nonlimiting manner up to the level (11) of the liquid (10) foaming in the reservoir ( 8a, 8b). The minimum size is the size below which the foaming liquid is not sucked during pumping. The size of the diameter of the suction hole (103) partly determines the nature of the foam. The larger the diameter, the greater the proportion of foaming product in the foam will be important. The diameter of the supply duct (1) also has an influence in the production of the foam. The smaller the average diameter, the more sucked air will be braked. The air flow sucked by pumping the pump, will be slower. The velocity of the air (12) at the suction hole (103) influences the amount of liquid sucked. Without limitation and remaining within operating ranges, the greater the average diameter of the duct (1) supply, the greater the proportion of air (12) contained in the foam, and the more the foam will be light . Conversely, the feed conduit (1) has a maximum average diameter. Beyond this maximum diameter, the air does not pass quickly enough to the hole (103) to create a phenomenon of suction of the liquid (10) foaming through the hole (103) suction. Thus the ratio between the size of the hole (103) and the diameter of the pipe must be judiciously adapted. As non-limiting examples, the inner diameter of the feed duct may vary from 3 mm to 15 mm and the diameter of the suction hole may vary from 1 mm to 5 mm. These examples of diameters are functional but depend on the product used.

La grille de filtrage a également un rôle dans la nature de la mousse. Ses dimensions influent sur la finesse de la mousse et donc sur sa densité. Plus la grille (2) de filtrage aura un maillage fin, plus la mousse sera dense. D'autre part, de manière non limitative, la taille du maillage de la grille est fonction des dimensions des autres éléments et aussi de la dilution du liquide (10) moussant. Dans un autre exemple de réalisation, des grilles (201) de filtrage supplémentaires sont ajoutées dans le conduit (4) d'expulsion. De manière non limitative, les tailles de maillage des grilles (2, 201) de filtrage sont choisies décroissante de la première grille (2) de filtrage à la dernière grille (201) de filtrage supplémentaire, la dernière grille supplémentaire étant la plus proche de la tête (5) de projection. De manière non limitative, une grille (6) d'élargissement mobile est placée au niveau de la tête (5) de projection. Cette grille (6) mobile permet donc au dispositif de fonctionner selon deux modes, avec ou sans la grille (6). La grille (6) d'élargissement permet soit d'élargir le jet de mousse, soit de réguler le jet de mousse.The filter grid also has a role in the nature of the foam. Its dimensions affect the fineness of the foam and therefore its density. The more the grid (2) of filtering will have a fine mesh, the more the foam will be dense. On the other hand, in a nonlimiting manner, the mesh size of the grid is a function of the dimensions of the other elements and also of the dilution of the foaming liquid (10). In another exemplary embodiment, additional filtering grids (201) are added in the expulsion conduit (4). Of In a nonlimiting manner, the mesh sizes of the filtering grids (2, 201) are chosen from the first filtering grid (2) to the last additional filtering grid (201), the last additional grid being the closest to the head (5) projection. In a nonlimiting manner, a grid (6) movable widening is placed at the head (5) projection. This grid (6) mobile allows the device to operate in two modes, with or without the grid (6). The enlargement grid (6) allows either to widen the foam jet or to regulate the foam jet.

De manière connue, le liquide moussant se transforme en mousse lorsqu'il est mélangé avec de l'eau et subit une agitation. Le dispositif selon l'invention permet la production de mousse sans apport supplémentaire d'eau. Le liquide (10) moussant contenu dans le réservoir (8a, 8b) contient donc un produit ayant des propriétés moussantes dilué avec de l'eau. De manière non limitative la dilution du liquide moussant est réalisée selon un mélange comportant 20% à 80% d'eau. Plus le liquide (1) moussant est concentré et plus on aura une mousse grasse, composée d'une proportion importante d'agent actif. Un exemple d'agent actif est, par exemple, un élément coiffant dans une mousse coiffante. Dans cet exemple, le liquide (10) moussant est composé d'un agent actif, appliqué sur les cheveux, d'un agent moussant et d'eau. De manière non limitative, la dilution est réalisée en fonction des dimensions des autres éléments du dispositif selon l'invention.In known manner, the foaming liquid becomes foam when it is mixed with water and is stirred. The device according to the invention allows the production of foam without additional water supply. The foaming liquid (10) contained in the reservoir (8a, 8b) therefore contains a product having foaming properties diluted with water. In a nonlimiting manner, the dilution of the foaming liquid is carried out according to a mixture comprising 20% to 80% water. The more the foaming liquid (1) is concentrated and the more one will have a fatty foam, composed of a large proportion of active agent. An example of an active agent is, for example, a styling element in a styling mousse. In this example, the foaming liquid (10) is composed of an active agent, applied to the hair, a foaming agent and water. In a nonlimiting manner, the dilution is carried out according to the dimensions of the other elements of the device according to the invention.

Il doit être évident pour les personnes versées dans l'art que la présente invention permet des modes de réalisation sous de nombreuses autres formes spécifiques sans l'éloigner du domaine d'application de l'invention comme revendiqué. Par conséquent, les présents modes de réalisation doivent être considérés à titre d'illustration, mais peuvent être modifiés dans le domaine défini par la portée des revendications jointes, et l'invention ne doit pas être limitée aux détails donnés ci-dessus.It should be obvious to those skilled in the art that the present invention allows embodiments in many other specific forms without departing from the scope of the invention as claimed. Therefore, the present embodiments should be considered by way of illustration, but may be modified within the scope defined by the scope of the appended claims, and the invention should not be limited to the details given above.

Claims (12)

Dispositif d'adaptation à la production de mousse, la pompe comportant au moins : - un réservoir (8a, 8b) contenant du liquide (10) moussant et de l'air (12), - un moyen (3000) de pompage aspirant d'une part un fluide par une entrée (301) de pompage et d'autre part expulsant ce fluide par une sortie (302) de pompage, - un conduit (4) d'expulsion connecté à la sortie (302) de pompage, caractérisé en ce qu'il comprend : - un conduit (1) d'alimentation ouvert à ses deux extrémités, dont la première extrémité est connectée à l'entrée (301) de la chambre (3) de pompage, dont la deuxième extrémité débouche dans l'air (12) contenu dans le réservoir (8a, 8b) ou à l'extérieur du réservoir (8a, 8b), une partie du conduit (1) d'alimentation circulant en dessous du niveau (11) de liquide (10) moussant et le conduit (1) d'alimentation relie ses deux extrémités en maintenant une séparation absolue entre l'intérieur et l'extérieur du conduit (1) à l'exception d'au moins une autre ouverture qui est un trou (103) d'aspiration réalisé dans le conduit (1) d'alimentation en dessous du niveau (11) du liquide (10), la taille du trou (103) d'aspiration étant telle que le liquide (10) ne circule pas par le trou (103) sauf lors d'une circulation de l'air (12) dans le conduit (1) d'alimentation, à une vitesse supérieure à une vitesse déterminée. - une grille (2) de filtrage obstruant le conduit (4) d'expulsion. Adaptation device for the production of foam, the pump comprising at least: a reservoir (8a, 8b) containing foaming liquid (10) and air (12), a pumping means (3000) sucking on the one hand a fluid through a pumping inlet (301) and on the other hand expelling this fluid through an outlet (302) for pumping, an expulsion conduit (4) connected to the pumping outlet (302), characterized in that it comprises: a feed duct (1) open at both ends, the first end of which is connected to the inlet (301) of the pumping chamber (3), the second end of which opens into the air (12) contained therein in the reservoir (8a, 8b) or outside the reservoir (8a, 8b), a portion of the supply duct (1) flowing below the level (11) of foaming liquid (10) and the duct (1) ) connects its two ends maintaining an absolute separation between the inside and outside of the conduit (1) except for at least one other opening which is a suction hole (103) made in the conduit (1) feeding below the level (11) of the liquid (10), the size of the suction hole (103) being such that the liquid (10) does not flow through the hole (103) except when a circulation of air (12) in the supply duct (1) at a speed greater than a determined speed. - A filtering grid (2) obstructing the expulsion conduit (4). Dispositif d'adaptation selon la revendication 1, caractérisé en ce qu'un élément d'adaptation du diamètre est connecté entre l'entrée (301) de pompage et la première extrémité du conduit (1) d'alimentation.Adapter device according to claim 1, characterized in that a diameter matching element is connected between the pump inlet (301) and the first end of the supply conduit (1). Dispositif d'adaptation selon les revendications 1 et 2, caractérisé en ce que le conduit (1) d'alimentation est réalisé par un tube coudé comportant une partie (104) plongeante droite puis un coude (102) puis une partie (101) émergeante droite, le coude (102) étant sous le niveau (11) du liquide (10) moussant et le trou (103) d'aspiration étant réalisé dans le coude (102).Adaptation device according to claims 1 and 2, characterized in that the supply duct (1) is formed by an elbow tube having a right plunging portion (104) and then an elbow (102) and an emergent portion (101). right, the elbow (102) being below the level (11) of the foaming liquid (10) and the suction hole (103) being formed in the elbow (102). Dispositif d'adaptation selon les revendications 1 et 2, caractérisé en ce que le conduit (1) d'alimentation est réalisé, en trois parties tubulaires emmanchées étant un coude (102), un tube (104) plongeur et un tube (101) émergeant, le coude (102) en U comportant deux extrémités de connexion et un trou (103) d'aspiration, le tube (104) plongeur étant connecté à l'entrée (301) de pompage et à une première extrémité du coude (102), le tube (101) émergeant étant connecté à la deuxième extrémité du coude (102) et émergeant dans l'air (12).Adaptation device according to claims 1 and 2, characterized in that the supply duct (1) is made of three tubular fitted parts being an elbow (102), a plunger tube (104) and a tube (101) emerging, the U-shaped bend (102) having two connecting ends and a suction hole (103), the plunger tube (104) being connected to the pumping inlet (301) and a first end of the bend (102). ), the emerging tube (101) being connected to the second end of the elbow (102) and emerging in the air (12). Dispositif d'adaptation selon une des revendications 1 à 4, caractérisé en ce qu'un élément rigide relie le réservoir (8a, 8b) à une partie du tube (104) émergeant se trouvant dans l'air à l'intérieur du réservoir (8a, 8b).Adaptation device according to one of Claims 1 to 4, characterized in that a rigid element connects the reservoir (8a, 8b) to a part of the emerging tube (104) in the air inside the reservoir ( 8a, 8b). Dispositif d'adaptation selon une des revendications 1 à 4, caractérisé en ce qu'un élément rigide relie une partie du tube (104) plongeur à une partie du tube (104) émergeant se trouvant dans l'air à l'intérieur du réservoir (8a, 8b).Adapter device according to one of claims 1 to 4, characterized in that a rigid element connects a portion of the plunger tube (104) to a portion of the emerging tube (104) in the air inside the reservoir (8a, 8b). Dispositif d'adaptation selon une des revendications 1 à 4, caractérisé en ce que le tube émergeant débouche dans l'air à l'extérieur du réservoir par l'intermédiaire d'un clapet traversant la paroi du réservoir (8a).Adaptation device according to one of claims 1 to 4, characterized in that the emergent tube opens into the air outside the tank via a valve through the wall of the tank (8a). Dispositif d'adaptation selon une des revendications 1 à 7, caractérisé en ce que le rapport entre le diamètre du trou et le diamètre moyen du conduit d'alimentation a une valeur déterminée.Adaptation device according to one of Claims 1 to 7, characterized in that the ratio of the diameter of the hole to the average diameter of the supply duct has a predetermined value. Dispositif d'adaptation selon une des revendications 1 à 8, caractérisé en ce qu'au moins une grille (201) supplémentaire d'affinage est placée dans le conduit (4) d'expulsion, de façon à obstruer le conduit (4) d'expulsion.Adaptation device according to one of claims 1 to 8, characterized in that at least one additional refining grid (201) is placed in the expulsion duct (4) so as to obstruct the duct (4) of 'expulsion. Dispositif d'adaptation selon une des revendications 1 à 9, caractérisé en ce qu'une grille (6) d'élargissement est placée à la sortie du conduit (4) d'expulsion, de façon à obstruer le conduit (4) d'expulsion.Adaptation device according to one of claims 1 to 9, characterized in that an expansion grid (6) is placed at the outlet of the expulsion duct (4) so as to obstruct the duct (4) of expulsion. Dispositif d'adaptation selon la revendication 10, caractérisé en ce que la partie de la grille (6) d'élargissement, obstruant le conduit (4) est composée de trois lames horizontales.Adaptation device according to claim 10, characterized in that the portion of the enlargement grid (6) obstructing the duct (4) is composed of three horizontal blades. Dispositif d'adaptation selon la revendication 10, caractérisé en ce que la partie de la grille (6) d'élargissement, obstruant le conduit (4) est composée de deux lames formant une croix.Adaptation device according to claim 10, characterized in that the portion of the expansion grid (6) obstructing the duct (4) is composed of two blades forming a cross.
EP06291209A 2005-07-26 2006-07-26 Adapting a dispenser to produce foam Not-in-force EP1747815B8 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0507949A FR2889263B1 (en) 2005-07-26 2005-07-26 DEVICE FOR ADAPTING THE PRODUCTION OF FOAM

Publications (3)

Publication Number Publication Date
EP1747815A1 true EP1747815A1 (en) 2007-01-31
EP1747815B1 EP1747815B1 (en) 2009-02-18
EP1747815B8 EP1747815B8 (en) 2009-04-22

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ID=36147050

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Application Number Title Priority Date Filing Date
EP06291209A Not-in-force EP1747815B8 (en) 2005-07-26 2006-07-26 Adapting a dispenser to produce foam

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US (2) US8590811B2 (en)
EP (1) EP1747815B8 (en)
AT (1) ATE422967T1 (en)
DE (1) DE602006005196D1 (en)
FR (1) FR2889263B1 (en)

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WO2020017174A1 (en) * 2018-07-18 2020-01-23 花王株式会社 Foam discharger
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Also Published As

Publication number Publication date
US9265385B2 (en) 2016-02-23
FR2889263A1 (en) 2007-02-02
US20070040048A1 (en) 2007-02-22
EP1747815B1 (en) 2009-02-18
ATE422967T1 (en) 2009-03-15
US20140069959A1 (en) 2014-03-13
EP1747815B8 (en) 2009-04-22
FR2889263B1 (en) 2007-10-26
DE602006005196D1 (en) 2009-04-02
US8590811B2 (en) 2013-11-26

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