EP1914003A1 - Device for producing foam - Google Patents

Device for producing foam Download PDF

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Publication number
EP1914003A1
EP1914003A1 EP07291244A EP07291244A EP1914003A1 EP 1914003 A1 EP1914003 A1 EP 1914003A1 EP 07291244 A EP07291244 A EP 07291244A EP 07291244 A EP07291244 A EP 07291244A EP 1914003 A1 EP1914003 A1 EP 1914003A1
Authority
EP
European Patent Office
Prior art keywords
chamber
liquid
air
outlet
piston
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.)
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Application number
EP07291244A
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German (de)
French (fr)
Inventor
Gérard Sannier
Francis Poizot
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Individual
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Individual
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Publication date
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Publication of EP1914003A1 publication Critical patent/EP1914003A1/en
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Classifications

    • 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
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B05B11/028—Pistons separating the content remaining in the container from the atmospheric air to compensate underpressure inside the container
    • 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
    • B05B11/0005—Components or details
    • B05B11/0059—Components or details allowing operation in any orientation, e.g. for discharge in inverted position

Definitions

  • the invention relates to the field of manually operated foam producing devices operating on the basis of foaming and refillable liquid. It relates more particularly to a device that can be used in all positions, standing, lying down or turned over, to produce foam.
  • foam producing devices for producing foam from foaming liquid.
  • the patent application WO 2004/078359 and the patent EP 1 190 775 describe, for example, a type of manual device producing foam from a foaming liquid.
  • this type of foam producing device does not work properly in all positions.
  • This type of device can not produce foam, for example, when the device is returned or that device is tilted horizontally and that its tank is emptied more than half.
  • the present invention aims to remedy one or more of the disadvantages of the prior art by providing a rechargeable foam production device, operated by hand and operating in all positions.
  • the second non-return sealing valve comprises a plastic boss that closes the outlet opening of the liquid, the boss being held by elastic tabs fixed to the mixing chamber, the stirring means comprising a thread or a porous element disposed downstream of the liquid outlet opening and the air outlet opening, with respect to a flow towards the expulsion port.
  • the second non-return sealing valve comprises a ball pushed against a frustoconical wall widening towards the ball and realizing the edges of the outlet of the liquid chamber, the ball being pushed by an elastic element in bearing against at least one bearing abutment of the mixing chamber.
  • the elastic element is made by a spring
  • the stirring means comprising a net or a porous element disposed downstream of the air outlet opening and the liquid outlet opening, by relative to a flow towards the expulsion orifice.
  • the elastic element is formed by a piece of elastic porous foam disposed downstream of the air outlet opening, with respect to a flow towards the expulsion orifice to achieve the stirring of air and foaming liquid.
  • the sealing check valve comprises a deformable portion to ensure a tight closure of the liquid outlet opening.
  • the foaming liquid supply tank of variable capacity, comprises a movable piston sliding sealingly abutting against an inner wall of the tank, the movable piston being arranged vis-à-vis the opening inlet of the liquid chamber.
  • the air chamber comprises two cylindrical walls centered around the same axis and joining by the bottom of the air chamber, a piston, in which are formed the inlet for the air supply and the air outlet opening, closing the air chamber and sliding along the axis of the air chamber, the piston of the air chamber being pushed towards the bottom of the air chamber by the action of the user on a projecting portion of the piston or the piston being remote from the bottom of the chamber by the action of the return spring, the return spring being arranged in the air chamber, resting on the bottom .
  • the liquid chamber is disposed in the center of the air chamber, the liquid chamber comprising a cylinder of the same axis as the air chamber, closed by a piston, in which the opening of liquid outlet, the piston of the liquid chamber being integral with the piston of the air chamber, the inlet opening of the liquid chamber being formed in the bottom of the cylinder of the liquid chamber.
  • the air chamber comprises a plurality of air inlets, disposed at the periphery of the air chamber, and in front of which a diaphragm valve is held by supporting arms, in the chamber of air air.
  • the mixing chamber is adjacent to the liquid chamber, an air duct joining the outlet of the air chamber to the mixing chamber, the expulsion orifice being disposed immediately out of the means. brewing.
  • the foam producing device as shown in FIG. 1, comprises a reservoir (100) containing foaming liquid.
  • the foam production device is portable by hand.
  • the reservoir (100) is made, for example, inside a cylinder (101).
  • the inner wall of the cylinder (101) is of round or oval cross section.
  • a piston (102) of the same cross section is movable in the cylinder (101) and rests on the inner wall of the cylinder (101) sealingly.
  • the reservoir comprises an opening (103), in a nonlimiting manner, vis-à-vis the piston (102), through which the liquid exits the reservoir (100).
  • the liquid outlet through the opening (103) causes a translation of the piston (102) and a decrease in the volume of the reservoir (100).
  • the piston (102) movable partially delimiting the reservoir (100) allows to have an adaptable capacity of the reservoir (100), the capacity being identical to the volume of foaming liquid contained. The more the foaming liquid is sucked through the opening (103), the more the piston (102) approaches the bottom of the cylinder to reduce the capacity of the reservoir (100).
  • the patent US 5,152,434 describes for example a pump not suitable for the production of foam, equipped with a reservoir of this type.
  • the piston (102) comprises on one face opposite the tank, a fastener (104) accessible from the outside of the foam producing device, for gripping the piston (102) during disassembly to fill the tank (100).
  • the tank (100) As the flow of fluid passing through the opening (103) of the tank (100) is made in the direction out of the tank (100), the tank (100), initially completely filled with a determined foaming liquid, contains only this liquid .
  • the tank does not contain, for example, no air.
  • the opening of the reservoir (100) is always fed with foaming liquid until the reservoir (100) has reached its minimum capacity, when the piston (102) advances to an abutment position, for example against the opening (103).
  • the inlet opening of the chamber (2) of liquid coincides with the opening of the reservoir.
  • the liquid chamber (2) is formed inside a cylinder (23) of the liquid chamber and is closed by a piston (24) sliding in the cylinder (23).
  • the piston (24) movable in translation in the cylinder (23) of the liquid chamber, is pressed against the inner wall of the cylinder (23) sealingly.
  • a non-return valve (22) disposed at the inlet (103) of the chamber (2) of liquid prevents a flow of the liquid returning to the reservoir (100).
  • the non-return valve disposed at the the inlet of the liquid chamber is, for example, a ball (22) resting against a frustoconical wall (21) widening towards the ball and forming the edges of the opening (103) of the inlet of the chamber ( 2) liquid.
  • the valve disposed at the outlet of the chamber (2) of liquid comprises elastic means for holding in the closed position, making it possible to close sealing the outlet opening (25) of the chamber (2) of liquid until the pressure in the chamber (2) of liquid is insufficient so that the liquid contained in the chamber (2) of liquid does not push the valve of seal.
  • the sealing valve as represented in FIG. 2, is produced, in a nonlimiting manner, by a ball (412) pushed by a resilient element (413, 415) against a frustoconical wall (411) widening toward the ball (412).
  • the ball (412) is for example made of plastic or glass, the wall (411) being, for example made of plastic.
  • the frustoconical wall (411) has a hardness determined to deform in contact with the ball (412).
  • the element (413, 415) elastic is for example in abutment against a ring (414) fixed support relative to the chamber (4) mixing.
  • the elastic element is made, without limitation, by an elastic porous foam (413) exerting a holding force of the ball (412) against the frustoconical wall.
  • the porous foam (413) also mixes the liquid with the air to produce foam.
  • the elastic element is a spring (415) resting on the support ring (414) and against the ball (412), a net (42) or a porous foam being disposed downstream of the ring (414), relative to the direction (5000) of expulsion, for stirring the foaming liquid with air and producing foam (51).
  • the spring (415) is for example metal or plastic.
  • the sealing valve comprises a boss (416) held in abutment against the outlet (25) of the chamber (2) of liquid, by elastic arms (417). .
  • the boss (416) is elastic to plug the outlet opening (25) of the chamber (2) of liquid by deforming when inserted into the outlet opening (25).
  • a chamber (3) of air is for example made around the chamber (2) of liquid, as shown in Figure 1.
  • the chamber (3) of air is formed by a cylinder (31) in which slides sealing a piston (32).
  • the cylinder (31) of the air chamber (3) is, for example, arranged coaxially and around the cylinder (23) of the liquid chamber.
  • the piston (32) of the air chamber (3) is connected to the piston (24) of the chamber (2) of liquid.
  • a flow of air (3002) is expelled from the air chamber (3) through the outlet (s) (34) of the air chamber to the mixing chamber (4).
  • the piston (32) of the chamber (3) of air being connected to the piston (24) of the chamber (2) of liquid, an overpressure is created at the same time in the chamber (3) of air and in the chamber (2) liquid, when the user exerts pressure for example on the head (61) of expulsion.
  • the expulsion head (61) is for example mounted in abutment on a piece forming the piston of the liquid chamber and the piston of the air chamber.
  • the diameter of the opening of the outlet (34) of the chamber (3) of air is, for example, sized relative to the outlet diameter (25) of the chamber (2) of liquid to achieve a mixture of air and foaming liquid product in a proportion determined.
  • the air chamber (3) is arranged adjacent to the mixing chamber (4), the outlet (34) of the air chamber (3) opening directly into the mixing chamber (4), as shown in Figure 2.
  • the outlet (34) of the air chamber communicates with a duct (35) leading to the mixing chamber (4).
  • the spring (39) disposed in the chamber (3) of air is protected against possible corrosive attacks by the foaming liquid.
  • a depression is then created in the air chamber and a current (3001) of incoming air pushes back the check valve (s) (36) of the air inlet (s) (33) of the air chamber.
  • the air chamber then fills with air from outside the foam producing device.
  • the communication between the air chamber and the mixing chamber is left free.
  • the air inlet (s) (33) of the air chamber (3) have in fact a cross section sufficient to supply the air chamber with a flow of air coming from the outside. Air can also pass through the orifice (5) and the mixing chamber (4) to enter the air chamber through the outlet (s) (34), although in practice this inflow of air is negligible.
  • a suction (3001) of air is created in the chamber (3) of air at the same time as a suction (1000) of foaming liquid in the chamber (2) of liquid, as shown in Figure 5.
  • the expulsion of foaming liquid and air into the mixing chamber (4) allows stirring of the foaming liquid by the mixing element (42), as shown in FIG.
  • the foam produced by the stirring element (413) is directed in an expulsion conduit (6) to an orifice (5) for expulsion of the foam, or as shown in Figure 3, the foam produced by the brewing element (42) exits directly through the orifice (5) expulsion.
  • the sealing valve at the outlet of the chamber (2) of liquid, prevents leakage in case of overturning.
  • this sealing valve makes it possible to keep the foaming liquid safe from the air, certain product requiring to be kept out of the air.
  • the expulsion orifice (5) is arranged against the stirring element (42), as shown in FIG. 3, to avoid storing foam in an expulsion duct (6) or to be able to rinse the mixing chamber (4) after use.
  • foaming liquid When the foam-producing device is activated, foaming liquid will always be present at the inlet (103) of the liquid chamber (2), regardless of the inclination of the foam-producing device.
  • the reservoir of course provides foaming liquid in all positions, as long as the reservoir (100) is not emptied.
  • the sealing valve plugging the outlet opening (25) of the liquid chamber, prevents the defusing of the chamber (2) of liquid in case of reversal.
  • the overpressure in the liquid chamber allows the expulsion (200) of foaming liquid in the chamber (4) of mixing, the elastic element (415) of the sealing valve then bringing the latter into its closed position, even if the user keeps the head of the foam production device in the depressed position.

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  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

The device for producing a rechargeable foam, comprises a reservoir (100) to supply foaming liquid of variable capacity, a liquid chamber (2) communicating with the reservoir by an inlet opening and with a mixing chamber (4) by an outlet opening, a first non-return valve (21, 22) disposed to the inlet opening of the liquid chamber, a second non-return valve (411, 412) disposed to the outlet opening, an air chamber (3) comprising an inlet with a third non-return valve, and a gripping means for a user to compress the air- and liquid chamber to expel the liquid and the air. The device for producing a rechargeable foam, comprises a reservoir (100) to supply foaming liquid of variable capacity, a liquid chamber (2) communicating with the reservoir by an inlet opening and with a mixing chamber (4) by an outlet opening, a first non-return valve (21, 22) disposed to the inlet opening of the liquid chamber, a second non-return valve (411, 412) disposed to the outlet opening, an air chamber (3) comprising an inlet with a third non-return valve, and a gripping means for a user to compress the air- and liquid chamber to expel the liquid and the air by the outlet opening of the liquid and the air. The second non-return valve comprises flexible maintenance unit in a closed position. The mixing chamber comprises a mixing unit to produce the foam expulsed towards an outlet orifice, and a spring return to the air and the liquid chamber in their non-compressed positions to produce air and liquid aspiration. The second valve includes plastic knob maintained by elastic arms, which are fixed to the mixing chamber, a ball pushed against a truncated wall widening towards the ball and producing edges of the outlet of the liquid chamber, and a deformable part to ensure a tight closure of the outlet opening of the liquid. The gripping means comprises a net or a porous element disposed in a downstream of the outlet opening of the air and the liquid with respect to the flow towards an expulsion orifice. The ball is pushed by an elastic support against stop support of the mixing chamber. The elastic element is directed by a part of porous elastic foam disposed downstream of the outlet opening of air with respect to the flow through the expulsion orifice to achieve mixing of air and foaming liquid. The air chamber comprises two cylindrical walls centered around a single axis and joined to a bottom of the air chamber, and a piston closing the chamber and sliding along the axis of the chamber. The piston is pushed towards the bottom of the air chamber by the user on a protruding portion of the piston or piston is moved away from the bottom of the chamber by using the spring. The air chamber includes inlets arranged on the periphery of the chamber, and before which a valve membrane is maintained by the arm support. The mixing chamber is adjacent to the liquid chamber, and a ventilation pipe joining the outlet of the air and the mixing chamber.

Description

L'invention concerne le domaine des dispositifs de production de mousse actionnés manuellement, fonctionnant à base de liquide moussant et rechargeable. Elle concerne plus particulièrement un dispositif utilisable dans toutes les positions, debout, couché ou retourné, pour produire de la mousse.The invention relates to the field of manually operated foam producing devices operating on the basis of foaming and refillable liquid. It relates more particularly to a device that can be used in all positions, standing, lying down or turned over, to produce foam.

Il existe des dispositifs de production de mousse actionnés à la main permettant de produire de la mousse à partir de liquide moussant. La demande de brevet WO 2004/078359 et le brevet EP 1 190 775 décrivent, par exemple, un type de dispositif manuel produisant de la mousse à partir d'un liquide moussant. Cependant ce type de dispositif de production de mousse ne fonctionne pas correctement dans toutes les positions. Ce type de dispositif ne peut pas produire de la mousse, par exemple, lorsque le dispositif est retourné ou que ce dispositif est incliné à l'horizontale et que son réservoir est vidé à plus de la moitié.There are hand-operated foam producing devices for producing foam from foaming liquid. The patent application WO 2004/078359 and the patent EP 1 190 775 describe, for example, a type of manual device producing foam from a foaming liquid. However this type of foam producing device does not work properly in all positions. This type of device can not produce foam, for example, when the device is returned or that device is tilted horizontally and that its tank is emptied more than half.

La présente invention a pour but de remédier à un ou plusieurs des inconvénients de l'art antérieur en proposant un dispositif de production de mousse rechargeable, actionné à la main et fonctionnant dans toutes les positions.The present invention aims to remedy one or more of the disadvantages of the prior art by providing a rechargeable foam production device, operated by hand and operating in all positions.

Cet objectif est atteint par un dispositif de production de mousse comprenant un réservoir d'alimentation en liquide moussant, de capacité variable, caractérisé en ce qu'il comprend :

  • une chambre de liquide communicant avec le réservoir d'alimentation en liquide moussant par une ouverture d'entrée, et avec une chambre de mélange par une ouverture de sortie du liquide,
  • un premier clapet anti-retour disposé à l'ouverture d'entrée de la chambre de liquide,
  • un second clapet anti-retour d'étanchéité, disposé à l'ouverture de sortie du liquide, autorisant un flux sortant de la chambre de liquide et comprenant des moyens élastiques de maintien en position fermée,
  • une chambre d'air comprenant au moins une entrée avec un troisième clapet anti-retour permettant l'alimentation en air provenant de l'extérieur et une ouverture sortie de l'air communicant avec la chambre de mélange,
  • des moyens de préhension pour un utilisateur, pour comprimer la chambre d'air et la chambre de liquide pour chasser du liquide et de l'air, par l'ouverture de sortie du liquide et par l'ouverture de sortie de l'air, dans la chambre de mélange qui comprend des moyens de brassage pour produire de la mousse expulsée vers un orifice de sortie, un ressort de rappel ramenant la chambre d'air et la chambre de liquide dans leur position non compressée pour réaliser une aspiration d'air et de liquide.
This objective is achieved by a foam production device comprising a foaming liquid supply tank, of variable capacity, characterized in that it comprises:
  • a liquid chamber communicating with the foaming liquid supply tank through an inlet opening, and with a mixing chamber through a liquid outlet opening,
  • a first non-return valve disposed at the inlet opening of the liquid chamber,
  • a second non-return valve, disposed at the liquid outlet opening, allowing a flow out of the liquid chamber and comprising elastic means for holding in the closed position,
  • an air chamber comprising at least one inlet with a third nonreturn valve for supplying air from outside and an air outlet opening communicating with the mixing chamber,
  • gripping means for a user, for compressing the air chamber and the liquid chamber to expel liquid and air, through the liquid outlet opening and through the air outlet opening, in the mixing chamber which comprises stirring means for producing expelled foam to an outlet port, a return spring returning the air chamber and the liquid chamber to their uncompressed position to effect air suction and liquid.

Selon une autre particularité, le second clapet anti-retour d'étanchéité comprend un bossage plastique venant boucher l'ouverture de sortie du liquide, le bossage étant maintenu par des pattes élastiques fixées à la chambre de mélange, les moyens de brassage comprenant un filet ou un élément poreux disposé en aval de l'ouverture de sortie du liquide et de l'ouverture de sortie de l'air, par rapport à un écoulement vers l'orifice d'expulsion.According to another feature, the second non-return sealing valve comprises a plastic boss that closes the outlet opening of the liquid, the boss being held by elastic tabs fixed to the mixing chamber, the stirring means comprising a thread or a porous element disposed downstream of the liquid outlet opening and the air outlet opening, with respect to a flow towards the expulsion port.

Selon une autre particularité, le second clapet anti-retour d'étanchéité comprend une bille poussée contre une paroi tronconique s'élargissant vers la bille et réalisant les bords de la sortie de la chambre de liquide, la bille étant poussée par un élément élastique en appui contre au moins une butée d'appui de la chambre de mélange.According to another feature, the second non-return sealing valve comprises a ball pushed against a frustoconical wall widening towards the ball and realizing the edges of the outlet of the liquid chamber, the ball being pushed by an elastic element in bearing against at least one bearing abutment of the mixing chamber.

Selon une autre particularité, l'élément élastique est réalisé par un ressort, les moyens de brassage comprenant un filet ou un élément poreux disposé en aval de l'ouverture de sortie de l'air et de l'ouverture de sortie du liquide, par rapport à un écoulement vers l'orifice d'expulsion.According to another feature, the elastic element is made by a spring, the stirring means comprising a net or a porous element disposed downstream of the air outlet opening and the liquid outlet opening, by relative to a flow towards the expulsion orifice.

Selon une autre particularité, l'élément élastique est réalisé par une pièce de mousse poreuse élastique disposée en aval de l'ouverture de sortie de l'air, par rapport à un écoulement vers l'orifice d'expulsion pour réaliser le brassage d'air et de liquide moussant.According to another feature, the elastic element is formed by a piece of elastic porous foam disposed downstream of the air outlet opening, with respect to a flow towards the expulsion orifice to achieve the stirring of air and foaming liquid.

Selon une autre particularité, le clapet anti-retour d'étanchéité comprend une partie déformable pour assurer une fermeture étanche de l'ouverture de sortie du liquide.According to another feature, the sealing check valve comprises a deformable portion to ensure a tight closure of the liquid outlet opening.

Selon une autre particularité, le réservoir d'alimentation en liquide moussant, de capacité variable, comprend un piston mobile coulissant de façon étanche en appui contre une paroi intérieure du réservoir, le piston mobile étant disposé en vis-à-vis de l'ouverture d'entrée de la chambre de liquide.According to another feature, the foaming liquid supply tank, of variable capacity, comprises a movable piston sliding sealingly abutting against an inner wall of the tank, the movable piston being arranged vis-à-vis the opening inlet of the liquid chamber.

Selon une autre particularité, la chambre d'air comprend deux parois cylindriques centrées autour d'un même axe et se rejoignant par le fond de la chambre d'air, un piston, dans lequel sont réalisées l'entrée permettant l'alimentation en air et l'ouverture de sortie de l'air, fermant la chambre d'air et coulissant selon l'axe de la chambre d'air, le piston de la chambre d'air étant poussé vers le fond de la chambre d'air par l'action de l'utilisateur sur une partie saillante du piston ou le piston étant éloigné du fond de la chambre par l'action du ressort de rappel, le ressort de rappel étant disposé dans la chambre d'air, en appui sur le fond.According to another feature, the air chamber comprises two cylindrical walls centered around the same axis and joining by the bottom of the air chamber, a piston, in which are formed the inlet for the air supply and the air outlet opening, closing the air chamber and sliding along the axis of the air chamber, the piston of the air chamber being pushed towards the bottom of the air chamber by the action of the user on a projecting portion of the piston or the piston being remote from the bottom of the chamber by the action of the return spring, the return spring being arranged in the air chamber, resting on the bottom .

Selon une autre particularité, la chambre de liquide est disposée au centre de la chambre d'air, la chambre de liquide comprenant un cylindre de même axe que la chambre d'air, fermé par un piston, dans lequel est réalisée l'ouverture de sortie du liquide, le piston de la chambre de liquide étant solidaire du piston de la chambre d'air, l'ouverture d'entrée de la chambre de liquide étant réalisée dans le fond du cylindre de la chambre de liquide.According to another feature, the liquid chamber is disposed in the center of the air chamber, the liquid chamber comprising a cylinder of the same axis as the air chamber, closed by a piston, in which the opening of liquid outlet, the piston of the liquid chamber being integral with the piston of the air chamber, the inlet opening of the liquid chamber being formed in the bottom of the cylinder of the liquid chamber.

Selon une autre particularité, la chambre d'air comprend une pluralité d'entrées d'air, disposées en périphérie de la chambre d'air, et devant lesquelles un clapet à membrane est maintenu par des bras de soutien, dans la chambre d'air.According to another feature, the air chamber comprises a plurality of air inlets, disposed at the periphery of the air chamber, and in front of which a diaphragm valve is held by supporting arms, in the chamber of air air.

Selon une autre particularité, la chambre de mélange est adjacente à la chambre de liquide, un conduit d'air joignant la sortie de la chambre d'air à la chambre de mélange, l'orifice d'expulsion étant disposé immédiatement en sortie des moyens de brassage.According to another feature, the mixing chamber is adjacent to the liquid chamber, an air duct joining the outlet of the air chamber to the mixing chamber, the expulsion orifice being disposed immediately out of the means. brewing.

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 une vue de coupe d'un exemple de dispositif de production de mousse selon l'invention;
  • les figures 2 et 3 représentent chacune un détail en coupe d'un dispositif de production de mousse selon l'invention ;
  • la figure 4 représente une vue en perspective d'un clapet d'étanchéité utilisé dans un dispositif de production de mousse selon l'invention ;
  • les figures 5 et 6 représentent une vue en coupe partielle d'un exemple de dispositif de production de mousse selon l'invention en phase de fonctionnement.
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:
  • FIG. 1 represents a sectional view of an example of a device for producing foam according to the invention;
  • Figures 2 and 3 each show a sectional detail of a foam production device according to the invention;
  • FIG. 4 represents a perspective view of a sealing valve used in a foam production device according to the invention;
  • Figures 5 and 6 show a partial sectional view of an example of a foam production device according to the invention in the operating phase.

L'invention va être décrite en référence aux figures précédemment citées. Le dispositif de production de mousse, comme représenté à la figure 1, comprend un réservoir (100) contenant du liquide moussant. De manière non limitative, le dispositif de production de mousse est portable à la main. Le réservoir (100) est réalisé, par exemple, à l'intérieur d'un cylindre (101). De manière non limitative, la paroi intérieure du cylindre (101) est de section transversale ronde ou ovale. Un piston (102) de même section transversale est mobile dans le cylindre (101) et s'appuie sur la paroi intérieure du cylindre (101) de façon étanche. Le réservoir comprend une ouverture (103), de manière non limitative, en vis-à-vis du piston (102), par laquelle le liquide sort du réservoir (100). La sortie de liquide par l'ouverture (103) entraîne une translation du piston (102) et une diminution du volume du réservoir (100). Le piston (102) mobile délimitant en partie le réservoir (100), permet d'avoir une contenance adaptable du réservoir (100), la contenance étant identique au volume de liquide moussant contenu. Plus le liquide moussant est aspiré par l'ouverture (103), plus le piston (102) se rapproche du fond du cylindre pour diminuer la contenance du réservoir (100). Le brevet US 5,152,434 décrit par exemple une pompe non adaptée à la production de mousse, équipée d'un réservoir de ce type. De manière non limitative, le piston (102) comprend sur une face à l'opposé du réservoir, une attache (104) accessible depuis l'extérieur du dispositif de production de mousse, pour saisir le piston (102) lors d'un démontage pour remplir le réservoir (100).The invention will be described with reference to the figures mentioned above. The foam producing device, as shown in FIG. 1, comprises a reservoir (100) containing foaming liquid. Without limitation, the foam production device is portable by hand. The reservoir (100) is made, for example, inside a cylinder (101). Without limitation, the inner wall of the cylinder (101) is of round or oval cross section. A piston (102) of the same cross section is movable in the cylinder (101) and rests on the inner wall of the cylinder (101) sealingly. The reservoir comprises an opening (103), in a nonlimiting manner, vis-à-vis the piston (102), through which the liquid exits the reservoir (100). The liquid outlet through the opening (103) causes a translation of the piston (102) and a decrease in the volume of the reservoir (100). The piston (102) movable partially delimiting the reservoir (100) allows to have an adaptable capacity of the reservoir (100), the capacity being identical to the volume of foaming liquid contained. The more the foaming liquid is sucked through the opening (103), the more the piston (102) approaches the bottom of the cylinder to reduce the capacity of the reservoir (100). The patent US 5,152,434 describes for example a pump not suitable for the production of foam, equipped with a reservoir of this type. Without limitation, the piston (102) comprises on one face opposite the tank, a fastener (104) accessible from the outside of the foam producing device, for gripping the piston (102) during disassembly to fill the tank (100).

Le flux de fluide passant par l'ouverture (103) du réservoir (100) étant réalisé dans le sens sortant du réservoir (100), le réservoir (100), rempli au départ entièrement par un liquide moussant déterminé, ne contient que ce liquide. Le réservoir ne contient, par exemple, pas d'air. De plus l'ouverture du réservoir (100) est toujours alimentée en liquide moussant jusqu'à ce que le réservoir (100) ait atteint sa capacité minimum, quand le piston (102) avance jusqu'à une position de butée, par exemple contre l'ouverture (103).As the flow of fluid passing through the opening (103) of the tank (100) is made in the direction out of the tank (100), the tank (100), initially completely filled with a determined foaming liquid, contains only this liquid . The tank does not contain, for example, no air. In addition, the opening of the reservoir (100) is always fed with foaming liquid until the reservoir (100) has reached its minimum capacity, when the piston (102) advances to an abutment position, for example against the opening (103).

Une chambre (2) de liquide avec une ouverture d'entrée (103) et une ouverture de sortie (25), communique par son ouverture d'entrée (103) avec le réservoir et communique par son ouverture de sortie (25) avec une chambre (4) de mélange. L'ouverture d'entrée de la chambre (2) de liquide coïncide avec l'ouverture du réservoir. La chambre (2) de liquide est réalisée à l'intérieur d'un cylindre (23) de la chambre de liquide et est fermée par un piston (24) coulissant dans le cylindre (23). Le piston (24) mobile en translation dans le cylindre (23) de la chambre de liquide, s'appuie contre la paroi intérieure du cylindre (23) de façon étanche. Un clapet (22) anti-retour disposé à l'entrée (103) de la chambre (2) de liquide empêche une circulation du liquide retournant dans le réservoir (100). Lorsque le piston (24) de la chambre (2) de liquide est tiré selon un mouvement d'éloignement du fond du cylindre (23), une dépression se crée dans la chambre (2) de liquide, créant un flux (1000) d'aspiration de liquide provenant du réservoir (100) et repoussant le clapet (22) anti-retour disposé à l'entrée (103) de la chambre (2), comme représenté à la figure 5. Le clapet anti-retour disposé à l'entrée de la chambre de liquide est, par exemple, une bille (22) en appui contre une paroi (21) tronconique s'élargissant vers la bille et formant les bords de l'ouverture (103) d'entrée de la chambre (2) de liquide.A liquid chamber (2) with an inlet opening (103) and an outlet opening (25) communicates through its inlet opening (103) with the reservoir and communicates through its outlet opening (25) with a mixing chamber (4). The inlet opening of the chamber (2) of liquid coincides with the opening of the reservoir. The liquid chamber (2) is formed inside a cylinder (23) of the liquid chamber and is closed by a piston (24) sliding in the cylinder (23). The piston (24) movable in translation in the cylinder (23) of the liquid chamber, is pressed against the inner wall of the cylinder (23) sealingly. A non-return valve (22) disposed at the inlet (103) of the chamber (2) of liquid prevents a flow of the liquid returning to the reservoir (100). When the piston (24) of the chamber (2) of liquid is pulled in a movement away from the bottom of the cylinder (23), a depression is created in the chamber (2) of liquid, creating a flow (1000) d suction of liquid from the reservoir (100) and pushing the nonreturn valve (22) disposed at the inlet (103) of the chamber (2), as shown in Figure 5. The non-return valve disposed at the the inlet of the liquid chamber is, for example, a ball (22) resting against a frustoconical wall (21) widening towards the ball and forming the edges of the opening (103) of the inlet of the chamber ( 2) liquid.

Lorsque le piston (24) de la chambre (2) de liquide est poussé vers le fond du cylindre (23), une surpression se crée dans la chambre (2) de liquide créant un blocage du clapet (22) anti-retour pour boucher l'ouverture (103) d'entrée de la chambre de liquide. Un flux (2000) de liquide est alors expulsé par l'ouverture de sortie (25) de la chambre (2) de liquide, en repoussant le clapet disposé à la sortie (25) de la chambre (2) de liquide. Le liquide moussant est alors projeté dans la chambre (4) de mélange, comme représenté à la figure 6. Le clapet disposé en sortie de la chambre (2) de liquide comprend des moyens élastiques de maintien en position fermée, permettant de fermer de façon étanche l'ouverture de sortie (25) de la chambre (2) de liquide tant que la pression dans la chambre (2) de liquide est insuffisante pour que le liquide contenu dans la chambre (2) de liquide ne repousse le clapet d'étanchéité.When the piston (24) of the chamber (2) of liquid is pushed towards the bottom of the cylinder (23), an overpressure is created in the chamber (2) of liquid creating a blockage of the valve (22) non-return to close the inlet opening (103) of the liquid chamber. A flow (2000) of liquid is then expelled by the outlet opening (25) of the chamber (2) of liquid, by pushing the valve disposed at the outlet (25) of the chamber (2) of liquid. The foaming liquid is then thrown into the mixing chamber (4), as shown in FIG. 6. The valve disposed at the outlet of the chamber (2) of liquid comprises elastic means for holding in the closed position, making it possible to close sealing the outlet opening (25) of the chamber (2) of liquid until the pressure in the chamber (2) of liquid is insufficient so that the liquid contained in the chamber (2) of liquid does not push the valve of seal.

Le clapet d'étanchéité, comme représenté à la figure 2, est réalisé, de manière non limitative, par une bille (412) poussée par un élément (413, 415) élastique, contre une paroi (411) tronconique s'élargissant vers la bille (412). La bille (412) est par exemple réalisée en plastique ou en verre, la paroi (411) étant, par exemple réalisée en plastique. De manière non limitative, la paroi (411) tronconique a une dureté déterminée pour se déformer au contact de la bille (412).The sealing valve, as represented in FIG. 2, is produced, in a nonlimiting manner, by a ball (412) pushed by a resilient element (413, 415) against a frustoconical wall (411) widening toward the ball (412). The ball (412) is for example made of plastic or glass, the wall (411) being, for example made of plastic. In a nonlimiting manner, the frustoconical wall (411) has a hardness determined to deform in contact with the ball (412).

L'élément (413, 415) élastique est par exemple en appui contre une bague (414) d'appui fixe par rapport à la chambre (4) de mélange. L'élément élastique est réalisé, de manière non limitative, par une mousse (413) poreuse élastique exerçant une force de maintien de la bille (412) contre la paroi tronconique. La mousse (413) poreuse réalise aussi un brassage du liquide avec l'air pour produire de la mousse.The element (413, 415) elastic is for example in abutment against a ring (414) fixed support relative to the chamber (4) mixing. The elastic element is made, without limitation, by an elastic porous foam (413) exerting a holding force of the ball (412) against the frustoconical wall. The porous foam (413) also mixes the liquid with the air to produce foam.

Selon un autre exemple de réalisation, comme représenté à la figure 1, l'élément élastique est un ressort (415) en appui sur la bague (414) d'appui et contre la bille (412), un filet (42) ou une mousse poreuse étant disposé en aval de la bague (414), par rapport au sens (5000) d'expulsion, pour brasser le liquide moussant avec l'air et produire de la mousse (51). Le ressort (415) est par exemple en métal ou en plastique.According to another exemplary embodiment, as represented in FIG. 1, the elastic element is a spring (415) resting on the support ring (414) and against the ball (412), a net (42) or a porous foam being disposed downstream of the ring (414), relative to the direction (5000) of expulsion, for stirring the foaming liquid with air and producing foam (51). The spring (415) is for example metal or plastic.

Selon un autre exemple de réalisation, comme représenté à la figure 3, le clapet d'étanchéité comprend un bossage (416) maintenu en appui contre la sortie (25) de la chambre (2) de liquide, par des bras (417) élastiques. Ce clapet (416, 417) représenté en perspective à la figure 4, est par exemple maintenu par ses bras (417) pincés à leur extrémité, par des moyens de pincement du dispositif de production de mousse. De manière non limitative, le bossage (416) est élastique pour boucher l'ouverture de sortie (25) de la chambre (2) de liquide en se déformant lors de son insertion dans l'ouverture de sortie (25).According to another exemplary embodiment, as represented in FIG. 3, the sealing valve comprises a boss (416) held in abutment against the outlet (25) of the chamber (2) of liquid, by elastic arms (417). . This valve (416, 417) shown in perspective in FIG. for example maintained by its arms (417) pinched at their end, by clamping means of the foam producing device. In a nonlimiting manner, the boss (416) is elastic to plug the outlet opening (25) of the chamber (2) of liquid by deforming when inserted into the outlet opening (25).

Une chambre (3) d'air est par exemple réalisée autour de la chambre (2) de liquide, comme représenté à la figure 1. La chambre (3) d'air est réalisée par un cylindre (31) dans lequel coulisse de façon étanche un piston (32). Le cylindre (31) de la chambre (3) d'air est, par exemple, disposé de façon coaxiale et autour du cylindre (23) de la chambre de liquide. Le piston (32) de la chambre (3) d'air est lié au piston (24) de la chambre (2) de liquide. Lorsque le piston (32) de la chambre (3) d'air est poussé vers le fond du cylindre (31) de la chambre (3) d'air, le volume de la chambre (3) d'air est réduit, l'air étant alors chassé de la chambre d'air. Une ou plusieurs entrées (33) d'air, associées à un clapet anti-retour, par exemple à membrane (36) soutenue par des bras (37), se bouchent alors automatiquement. Un flux d'air (3002) est expulsé de la chambre (3) d'air par la ou les sorties (34) de la chambre d'air vers la chambre (4) de mélange. Le piston (32) de la chambre (3) d'air étant lié au piston (24) de la chambre (2) de liquide, une surpression est créée en même temps dans la chambre (3) d'air et dans la chambre (2) de liquide, lorsque l'utilisateur exerce une pression par exemple sur la tête (61) d'expulsion. La tête (61) d'expulsion est par exemple montée en buté sur une pièce formant le piston de la chambre de liquide et le piston de la chambre d'air. Le diamètre de l'ouverture de la sortie (34) de la chambre (3) d'air est, par exemple, dimensionné par rapport au diamètre de sortie (25) de la chambre (2) de liquide pour réaliser un mélange d'air et de produit liquide moussant selon une proportion déterminée.A chamber (3) of air is for example made around the chamber (2) of liquid, as shown in Figure 1. The chamber (3) of air is formed by a cylinder (31) in which slides sealing a piston (32). The cylinder (31) of the air chamber (3) is, for example, arranged coaxially and around the cylinder (23) of the liquid chamber. The piston (32) of the air chamber (3) is connected to the piston (24) of the chamber (2) of liquid. When the piston (32) of the chamber (3) of air is pushed towards the bottom of the cylinder (31) of the chamber (3) of air, the volume of the chamber (3) of air is reduced, l The air is then expelled from the air chamber. One or more air inlets (33), associated with a non-return valve, for example membrane (36) supported by arms (37), then clog automatically. A flow of air (3002) is expelled from the air chamber (3) through the outlet (s) (34) of the air chamber to the mixing chamber (4). The piston (32) of the chamber (3) of air being connected to the piston (24) of the chamber (2) of liquid, an overpressure is created at the same time in the chamber (3) of air and in the chamber (2) liquid, when the user exerts pressure for example on the head (61) of expulsion. The expulsion head (61) is for example mounted in abutment on a piece forming the piston of the liquid chamber and the piston of the air chamber. The diameter of the opening of the outlet (34) of the chamber (3) of air is, for example, sized relative to the outlet diameter (25) of the chamber (2) of liquid to achieve a mixture of air and foaming liquid product in a proportion determined.

De manière non limitative, la chambre (3) d'air est disposée adjacente à la chambre (4) de mélange, la sortie (34) de la chambre (3) d'air débouchant directement dans la chambre (4) de mélange, comme représenté à la figure 2.Without limitation, the air chamber (3) is arranged adjacent to the mixing chamber (4), the outlet (34) of the air chamber (3) opening directly into the mixing chamber (4), as shown in Figure 2.

Selon un autre exemple de réalisation, la sortie (34) de la chambre d'air communique avec un conduit (35) menant à la chambre (4) de mélange.According to another exemplary embodiment, the outlet (34) of the air chamber communicates with a duct (35) leading to the mixing chamber (4).

Un ressort (39), par exemple, disposé dans la chambre (3) d'air, repousse le piston (32) de la chambre d'air du fond du cylindre de la chambre d'air et repousse le piston de la chambre de liquide du fond du cylindre de la chambre de liquide. De façon avantageuse, le ressort (39) disposé dans la chambre (3) d'air est protégé contre d'éventuelles attaques corrosives par le liquide moussant. Une dépression est alors créée dans la chambre d'air et un courant (3001) d'air entrant repousse le ou les clapets (36) anti-retour de la ou des entrées (33) d'air de la chambre d'air. La chambre d'air se remplit alors en air provenant de l'extérieur du dispositif de production de mousse.A spring (39), for example, arranged in the chamber (3) of air, pushes the piston (32) of the air chamber of the bottom of the cylinder of the air chamber and pushes the piston of the chamber of air liquid from the bottom of the cylinder of the liquid chamber. Advantageously, the spring (39) disposed in the chamber (3) of air is protected against possible corrosive attacks by the foaming liquid. A depression is then created in the air chamber and a current (3001) of incoming air pushes back the check valve (s) (36) of the air inlet (s) (33) of the air chamber. The air chamber then fills with air from outside the foam producing device.

De manière non limitative, la communication entre la chambre d'air et la chambre de mélange est laissée libre. La ou les entrées d'air (33) de la chambre (3) d'air ont en effet une section transversale suffisante pour alimenter la chambre d'air par un flux d'air provenant de l'extérieur. De l'air peut aussi passer par l'orifice (5) et la chambre (4) de mélange pour rentrer dans la chambre d'air par la ou les sorties (34), même si en pratique ce flux d'air entrant est négligeable.In a nonlimiting manner, the communication between the air chamber and the mixing chamber is left free. The air inlet (s) (33) of the air chamber (3) have in fact a cross section sufficient to supply the air chamber with a flow of air coming from the outside. Air can also pass through the orifice (5) and the mixing chamber (4) to enter the air chamber through the outlet (s) (34), although in practice this inflow of air is negligible.

Une aspiration (3001) d'air est créée dans la chambre (3) d'air en même temps qu'une aspiration (1000) de liquide moussant dans la chambre (2) de liquide, comme représenté à la figure 5. L'expulsion de liquide moussant et d'air dans la chambre (4) de mélange permet un brassage du liquide moussant par l'élément (42) de brassage, comme représenté à la figure 6.A suction (3001) of air is created in the chamber (3) of air at the same time as a suction (1000) of foaming liquid in the chamber (2) of liquid, as shown in Figure 5. The expulsion of foaming liquid and air into the mixing chamber (4) allows stirring of the foaming liquid by the mixing element (42), as shown in FIG.

De manière non limitative, comme représenté à la figure 2, la mousse produite par l'élément (413) de brassage est dirigée dans un conduit (6) d'expulsion jusqu'à un orifice (5) d'expulsion de la mousse, ou comme représenté à la figure 3, la mousse produite par l'élément (42) de brassage sort directement par l'orifice (5) d'expulsion.Without limitation, as shown in FIG. 2, the foam produced by the stirring element (413) is directed in an expulsion conduit (6) to an orifice (5) for expulsion of the foam, or as shown in Figure 3, the foam produced by the brewing element (42) exits directly through the orifice (5) expulsion.

Lorsque le dispositif de production de mousse n'est pas activé, le clapet d'étanchéité, à la sortie de la chambre (2) de liquide, empêche toute fuite en cas de retournement. De plus ce clapet d'étanchéité permet de maintenir le liquide moussant à l'abri de l'air, certain produit nécessitant d'être conservés à l'abri de l'air. De préférence pour des produits réagissant rapidement au contact de l'air, l'orifice (5) d'expulsion est disposé contre l'élément (42) de brassage, comme représenté à la figure 3, pour éviter de stocker de la mousse dans un conduit (6) d'expulsion ou pour pouvoir rincer la chambre (4) de mélange après utilisation.When the foam producing device is not activated, the sealing valve, at the outlet of the chamber (2) of liquid, prevents leakage in case of overturning. In addition, this sealing valve makes it possible to keep the foaming liquid safe from the air, certain product requiring to be kept out of the air. Preferably for products that react rapidly in contact with air, the expulsion orifice (5) is arranged against the stirring element (42), as shown in FIG. 3, to avoid storing foam in an expulsion duct (6) or to be able to rinse the mixing chamber (4) after use.

Lorsque le dispositif de production de mousse est activé, du liquide moussant sera toujours présent à l'entrée (103) de la chambre (2) de liquide, quelque soit l'inclinaison du dispositif de production de mousse. Le réservoir fournit bien sûr du liquide moussant, dans toutes les positions, tant que le réservoir (100) n'est pas vidé. De plus le clapet d'étanchéité bouchant l'ouverture de sortie (25) de la chambre de liquide, empêche le désamorçage de la chambre (2) de liquide en cas de retournement. En effet si l'utilisateur exerce une pression pour comprimer la chambre de liquide et la chambre d'air, en position retournée, la surpression dans la chambre de liquide permet l'expulsion (200) de liquide moussant dans la chambre (4) de mélange, l'élément (415) élastique du clapet d'étanchéité ramenant ensuite ce dernier dans sa position fermée, même si l'utilisateur maintien la tête du dispositif de production de mousse en position enfoncée.When the foam-producing device is activated, foaming liquid will always be present at the inlet (103) of the liquid chamber (2), regardless of the inclination of the foam-producing device. The reservoir of course provides foaming liquid in all positions, as long as the reservoir (100) is not emptied. In addition the sealing valve plugging the outlet opening (25) of the liquid chamber, prevents the defusing of the chamber (2) of liquid in case of reversal. Indeed if the user exerts a pressure to compress the liquid chamber and the air chamber, in the inverted position, the overpressure in the liquid chamber allows the expulsion (200) of foaming liquid in the chamber (4) of mixing, the elastic element (415) of the sealing valve then bringing the latter into its closed position, even if the user keeps the head of the foam production device in the depressed position.

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 (11)

Dispositif de production de mousse comprenant : - un réservoir (100) d'alimentation en liquide moussant, - une chambre (2) de liquide communicant avec le réservoir d'alimentation en liquide moussant par une ouverture (103) d'entrée, et avec une chambre (4) de mélange par une ouverture (25) de sortie du liquide, - un premier clapet (21, 22) anti-retour disposé à l'ouverture d'entrée (103) de la chambre (2) de liquide, - un second clapet (411, 412 ; 416) anti-retour, disposé à l'ouverture de sortie (25) du liquide, autorisant un flux sortant de la chambre (2) de liquide, - une chambre (3) d'air comprenant au moins une entrée (33) avec un troisième clapet anti-retour permettant l'alimentation en air provenant de l'extérieur et une ouverture sortie (34) de l'air communicant avec la chambre (4) de mélange, - des moyens (61) de préhension pour un utilisateur, pour comprimer la chambre (3) d'air et la chambre (2) de liquide pour chasser du liquide et de l'air, par l'ouverture (25) de sortie du liquide et par l'ouverture (34) de sortie de l'air, dans la chambre (4) de mélange qui comprend des moyens (42) de brassage pour produire de la mousse (51) expulsée vers un orifice (5) de sortie, un moyen (39) de rappel ramenant la chambre (3) d'air et la chambre (2) de liquide dans leur position non compressée pour réaliser une aspiration d'air et de liquide, caractérisé en ce que le réservoir d'alimentation en liquide moussant est de capacité variable, sa contenance étant identique au volume de liquide moussant contenu dans le réservoir.Foam producing device comprising: a reservoir (100) for supplying a foaming liquid, a chamber (2) of liquid communicating with the foaming liquid supply tank via an inlet opening (103), and with a mixing chamber (4) via an opening (25) for discharging the liquid, a first non-return valve (21, 22) disposed at the inlet opening (103) of the chamber (2) of liquid, a second nonreturn valve (411, 412, 416) disposed at the outlet opening (25) of the liquid, allowing a flow coming out of the chamber (2) of liquid, - an air chamber (3) comprising at least one inlet (33) with a third non-return valve for supplying air from outside and an outlet opening (34) for air communicating with the chamber (4) mixing, - gripping means (61) for a user, for compressing the air chamber (3) and the liquid chamber (2) to expel liquid and air through the outlet aperture (25). liquid and through the air outlet opening (34) in the mixing chamber (4) which comprises stirring means (42) for producing foam (51) expelled to an outlet port (5). a return means (39) for bringing the air chamber (3) and the liquid chamber (2) back into their uncompressed position to provide air and liquid suction, characterized in that the foaming liquid supply tank is of variable capacity, its capacity being identical to the volume of foaming liquid contained in the tank. Dispositif de production de mousse selon la revendication 1, caractérisé en ce que le réservoir d'alimentation en liquide moussant, de capacité variable, comprend un piston (102) mobile coulissant de façon étanche en appui contre une paroi intérieure du réservoir, le piston mobile étant disposé en vis-à-vis de l'ouverture d'entrée (103) de la chambre (2) de liquide.Foam production device according to claim 1, characterized in that the foaming liquid supply tank, of variable capacity, comprises a piston (102) movably sliding sealingly against an inner wall of the tank, the movable piston being arranged vis-à-vis the inlet opening (103) of the chamber (2) of liquid. Dispositif de production de mousse selon la revendication 1 ou 2, caractérisé en ce que le second clapet anti-retour comprend des moyens (415, 413 ; 417) élastiques de maintien en position fermée comprenant un bossage (416) plastique venant boucher l'ouverture de sortie (25) du liquide, le bossage étant maintenu par des bras (417) élastiques fixés à la chambre (4) de mélange, les moyens de brassage comprenant un filet (42) ou un élément poreux disposé en aval de l'ouverture de sortie (25) du liquide et de l'ouverture de sortie (34) de l'air, par rapport à un écoulement vers l'orifice (5) d'expulsion.Foam production device according to claim 1 or 2, characterized in that the second non-return valve comprises means (415, 413; 417) resilient holding in the closed position comprising a boss (416) plastic coming to close the opening outlet (25) of the liquid, the boss being held by elastic arms (417) attached to the mixing chamber (4), the stirring means comprising a thread (42) or a porous element disposed downstream of the opening outlet (25) of the liquid and the outlet opening (34) of the air, with respect to a flow towards the expulsion orifice (5). Dispositif de production de mousse selon la revendication 1 ou 2, caractérisé en ce que le second clapet anti-retour comprend des moyens (415, 413 ; 417) élastiques de maintien en position fermée comprenant une bille (412) poussée contre une paroi (411) tronconique s'élargissant vers la bille et réalisant les bords de la sortie (25) de la chambre (2) de liquide, la bille étant poussée par un élément (415, 413) élastique en appui contre au moins une butée (414) d'appui de la chambre (4) de mélange.Foam production device according to claim 1 or 2, characterized in that the second non-return valve comprises resilient means (415, 413; 417) for holding in the closed position, comprising a ball (412) pushed against a wall (411). ) frustoconical widening towards the ball and realizing the edges of the outlet (25) of the chamber (2) of liquid, the ball being pushed by a member (415, 413) resilient bearing against at least one stop (414) support of the mixing chamber (4). Dispositif de production de mousse selon la revendication 4, caractérisé en ce que l'élément élastique est réalisé par un ressort (415), les moyens de brassage comprenant un filet (42) ou un élément poreux disposé en aval de l'ouverture de sortie (34) de l'air et de l'ouverture de sortie (25) du liquide, par rapport à un écoulement vers l'orifice (5) d'expulsion.Foam production device according to claim 4, characterized in that the elastic element is formed by a spring (415), the stirring means comprising a thread (42) or a porous element disposed downstream of the outlet opening (34) of the air and the outlet opening (25) of the liquid, with respect to a flow towards the expulsion orifice (5). Dispositif de production de mousse selon la revendication 4, caractérisé en ce que l'élément élastique est réalisé par une pièce (413) de mousse poreuse élastique disposée en aval de l'ouverture de sortie (34) de l'air, par rapport à un écoulement vers l'orifice (5) d'expulsion pour réaliser le brassage d'air et de liquide moussant.Foam production device according to claim 4, characterized in that the elastic element is formed by a piece (413) of elastic porous foam disposed downstream of the outlet opening (34) of the air, relative to a flow to the orifice (5) expulsion to achieve the mixing of air and foaming liquid. Dispositif de production de mousse selon une des revendications 1 à 6, caractérisé en ce que le clapet anti-retour comprend une partie déformable pour assurer une fermeture étanche de l'ouverture (25) de sortie du liquide.Foam production device according to one of claims 1 to 6, characterized in that the non-return valve comprises a deformable part for sealing the liquid outlet opening (25). Dispositif de production de mousse selon une des revendications 1 à 7, caractérisé en ce que la chambre (3) d'air comprend deux parois cylindriques centrées autour d'un même axe et se rejoignant par le fond de la chambre d'air, un piston (32), dans lequel sont réalisées l'entrée (33) permettant l'alimentation en air et l'ouverture (34) de sortie de l'air, fermant la chambre (3) d'air et coulissant selon l'axe de la chambre d'air, le piston (32) de la chambre d'air étant poussé vers le fond de la chambre d'air par l'action de l'utilisateur sur une partie (61) saillante du piston ou le piston étant éloigné du fond de la chambre par l'action du moyen (39) de rappel, le moyen (39) de rappel étant un ressort disposé dans la chambre d'air, en appui sur le fond.Foam production device according to one of claims 1 to 7, characterized in that the air chamber (3) comprises two cylindrical walls centered around the same axis and joining at the bottom of the air chamber, a piston (32), in which the inlet (33) for the air supply and the air outlet opening (34) are made, closing the air chamber (3) and sliding along the axis of the air chamber, the piston (32) of the air chamber being pushed towards the bottom of the air chamber by the action of the user on a protruding portion (61) of the piston or the piston being remote from the bottom of the chamber by the action of the means (39) of return, the means (39) of return being a spring disposed in the air chamber, resting on the bottom. Dispositif de production de mousse selon la revendication 8, caractérisé en ce que la chambre (2) de liquide est disposée au centre de la chambre (3) d'air, la chambre (2) de liquide comprenant un cylindre (23) de même axe que la chambre (3) d'air, fermé par un piston (24), dans lequel est réalisée l'ouverture de sortie (25) du liquide, le piston (24) de la chambre (2) de liquide étant solidaire du piston (32) de la chambre d'air, l'ouverture d'entrée (103) de la chambre (2) de liquide étant réalisée dans le fond du cylindre de la chambre de liquide.Foam production device according to claim 8, characterized in that the liquid chamber (2) is arranged in the center of the air chamber (3), the liquid chamber (2) comprising a cylinder (23) likewise axis that the chamber (3) of air, closed by a piston (24), in which is formed the outlet opening (25) of the liquid, the piston (24) of the chamber (2) of liquid being secured to the piston (32) of the air chamber, the inlet opening (103) of the chamber (2) of liquid being formed in the bottom of the cylinder of the liquid chamber. Dispositif de production de mousse selon une des revendications 1 à 9, caractérisé en ce que la chambre (3) d'air comprend une pluralité d'entrées (33) d'air, disposées en périphérie de la chambre d'air, et devant lesquelles un clapet (36) à membrane est maintenue par des bras (37) de soutien, dans la chambre (3) d'air.Foam production device according to one of Claims 1 to 9, characterized in that the air chamber (3) comprises a plurality of air inlets (33) arranged at the periphery of the air chamber and in front of the air chamber. a diaphragm valve (36) is held by supporting arms (37) in the air chamber (3). Dispositif de production de mousse selon une des revendications 1 à 10, caractérisé en ce que la chambre (4) de mélange est adjacente à la chambre (2) de liquide, un conduit (35) d'air joignant la sortie (34) de la chambre (3) d'air à la chambre (4) de mélange, l'orifice (5) d'expulsion étant disposé immédiatement en sortie des moyens (42) de brassage.Foam production device according to one of claims 1 to 10, characterized in that the mixing chamber (4) is adjacent to the liquid chamber (2), an air duct (35) joining the outlet (34) of the air chamber (3) to the mixing chamber (4), the expulsion orifice (5) being placed immediately at the outlet of the stirring means (42).
EP07291244A 2006-10-12 2007-10-11 Device for producing foam Withdrawn EP1914003A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0608929A FR2907035B1 (en) 2006-10-12 2006-10-12 DEVICE FOR PRODUCING REVERSIBLE AND RECHARGEABLE FOAM

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EP1914003A1 true EP1914003A1 (en) 2008-04-23

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WO2013140194A2 (en) * 2012-03-20 2013-09-26 Ortega Beltran Marco Antonio Venturi omega device
CN105000259A (en) * 2015-06-03 2015-10-28 周晓青 Squeezing device
CN107051244A (en) * 2016-12-20 2017-08-18 马力 A kind of cleaning solution sparger
CN110026149A (en) * 2019-04-23 2019-07-19 刘殿坤 A kind of high-efficient reaction unit of discharge for production of resins processing
CN110270539A (en) * 2019-04-30 2019-09-24 宁波恒帅微电机有限公司 The washer of automatic liquid-spraying and air blowing

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Publication number Priority date Publication date Assignee Title
FR2994109B1 (en) 2012-08-06 2014-09-05 Gerard Sannier DEVICE FOR PRODUCING RECHARGEABLE FOAM

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EP1199105A1 (en) * 2001-07-17 2002-04-24 Guala Dispensing S.P.A. Foaming device
EP1266696A1 (en) * 2001-06-13 2002-12-18 Taplast S.p.A. Bellows pump for delivery gas-liquid mixtures
US20030000967A1 (en) * 2000-01-19 2003-01-02 Markus Ehrensperger Mehod and device for the controlled dispensing of cleansing foam

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US4880161A (en) * 1985-01-28 1989-11-14 Earl Wright Company Foam dispensing device
US5462208A (en) * 1994-08-01 1995-10-31 The Procter & Gamble Company Two-phase dispensing systems utilizing bellows pumps
US5788124A (en) * 1995-04-13 1998-08-04 Sofab Device for packaging and dispensing a liquid or semi-liquid substance
US20030000967A1 (en) * 2000-01-19 2003-01-02 Markus Ehrensperger Mehod and device for the controlled dispensing of cleansing foam
EP1266696A1 (en) * 2001-06-13 2002-12-18 Taplast S.p.A. Bellows pump for delivery gas-liquid mixtures
EP1199105A1 (en) * 2001-07-17 2002-04-24 Guala Dispensing S.P.A. Foaming device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013140194A2 (en) * 2012-03-20 2013-09-26 Ortega Beltran Marco Antonio Venturi omega device
WO2013140194A3 (en) * 2012-03-20 2014-05-15 Ortega Beltran Marco Antonio Venturi omega device
CN105000259A (en) * 2015-06-03 2015-10-28 周晓青 Squeezing device
CN107051244A (en) * 2016-12-20 2017-08-18 马力 A kind of cleaning solution sparger
CN110026149A (en) * 2019-04-23 2019-07-19 刘殿坤 A kind of high-efficient reaction unit of discharge for production of resins processing
CN110026149B (en) * 2019-04-23 2021-06-01 黄山市歙县永利化工有限公司 Reaction device for resin production and processing
CN110270539A (en) * 2019-04-30 2019-09-24 宁波恒帅微电机有限公司 The washer of automatic liquid-spraying and air blowing
CN110270539B (en) * 2019-04-30 2024-05-07 宁波恒帅股份有限公司 Automatic spray and blow cleaner

Also Published As

Publication number Publication date
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FR2907035A1 (en) 2008-04-18

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