EP2814368B1 - Pompe à deux fluides - Google Patents

Pompe à deux fluides Download PDF

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Publication number
EP2814368B1
EP2814368B1 EP13708270.7A EP13708270A EP2814368B1 EP 2814368 B1 EP2814368 B1 EP 2814368B1 EP 13708270 A EP13708270 A EP 13708270A EP 2814368 B1 EP2814368 B1 EP 2814368B1
Authority
EP
European Patent Office
Prior art keywords
fluid
chamber
pump
diaphragm
actuator
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.)
Not-in-force
Application number
EP13708270.7A
Other languages
German (de)
English (en)
Other versions
EP2814368A2 (fr
Inventor
John J. Mcnulty
Nick E. Ciavarella
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Go-Jo Industries Inc
Original Assignee
Go-Jo Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Go-Jo Industries Inc filed Critical Go-Jo Industries Inc
Publication of EP2814368A2 publication Critical patent/EP2814368A2/fr
Application granted granted Critical
Publication of EP2814368B1 publication Critical patent/EP2814368B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • A47K5/06—Dispensers for soap
    • A47K5/12—Dispensers for soap for liquid or pasty soap
    • A47K5/1202—Dispensers for soap for liquid or pasty soap dispensing dosed volume
    • 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
    • A47K5/06—Dispensers for soap
    • A47K5/12—Dispensers for soap for liquid or pasty soap
    • A47K5/1211—Dispensers for soap for liquid or pasty soap using pressure on soap, e.g. with piston
    • A47K5/1215—Dispensers for soap for liquid or pasty soap using pressure on soap, e.g. with piston applied by a peristaltic action
    • 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
    • A47K5/16—Foam or lather making devices with mechanical drive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
    • B05B9/0413—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material with reciprocating pumps, e.g. membrane pump, piston pump, bellow pump
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/32—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging two or more different materials which must be maintained separate prior to use in admixture
    • B65D81/3261—Flexible containers having several compartments
    • 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
    • B05B11/1081—Arrangements for pumping several liquids or other fluent materials from several containers, e.g. for mixing them at the moment of pumping
    • B05B11/1084—Arrangements for pumping several liquids or other fluent materials from several containers, e.g. for mixing them at the moment of pumping each liquid or other fluent material being pumped by a separate pump

Definitions

  • the present invention relates generally to dispenser systems and a pumping system for dispensing two fluids in the form of a foam.
  • Fluid dispenser systems such as fluid soap and sanitizer dispensers, provide a user with a predetermined amount of fluid upon actuation of the dispenser.
  • Foam is generally made by injecting air into the fluid to create a foamy mixture of liquid and air bubbles.
  • US 5 881 919 A discloses a pump having the features of the preamble of claim 1.
  • GB 2 293 157 A discloses a method of creating a foam having the features of the preamble of claim 11.
  • the pump of the invention comprises a housing and a diaphragm located within the housing, the diaphragm separating the housing into a first chamber and a second chamber a first one-way inlet valve for allowing a first fluid into the first chamber and a first one-way outlet valve for allowing the first fluid out of the first chamber, a second one-way inlet valve for allowing a second fluid into the second chamber, a second one-way outlet valve for allowing the second fluid out of the second chamber an actuator connected to the diaphragm, wherein movement of the actuator in a first direction causes the volume of the first chamber to contract and causes the first fluid to be expelled from the first chamber while causing the volume of the second chamber to expand and draw in the second fluid through the second one-way inlet valve, and movement of the actuator in the second direction causes the volume of the first chamber to expand drawing the first fluid in through the first one-way inlet valve and contracts the volume of the second chamber causing the second fluid to be expelled through
  • Exemplary embodiments of dispensers include a dispenser housing and the aforesaid pump.
  • the method of the invention for creating a foam comprises providing a pump having a first chamber and a second chamber separated by a diaphragm, providing a first fluid comprising an acid and a second fluid comprising a base, moving the diaphragm to a first position causing the first fluid to be pumped to a mixing chamber and the second fluid to be drawn into the second chamber and moving the diaphragm to a second position causing the second fluid to be pumped to the mixing chamber and the first fluid to be drawn into the first chamber, wherein a chemical reaction occurs between the first fluid and the second fluid that causes the formation of gas and the mixture is expelled as a foam.
  • One exemplary refill unit for a two fluid foam dispenser includes a first reservoir and a second reservoir formed between two sheets of material and a first tube extending to the first reservoir and a second tube extending to the second reservoir. The first tube and second tube are at least partially surrounded by the sheets of material.
  • a mixing chamber is included wherein the mixing chamber is in fluid communication with the first and second tubes.
  • An outlet nozzle is located downstream of the mixing chamber. First fluid from the first fluid reservoir and second fluid from the second fluid reservoir are combined in the mixing chamber and form a foam that is dispensed out of the nozzle.
  • FIG. 1 illustrates a schematic view of a pumping system 100.
  • Pumping system 100 includes a pump 101.
  • Pump 101 has a housing 102.
  • Housing 102 is divided by diaphragm 104 into a first chamber 112 and a second chamber 114.
  • Diaphragm 104 may be made with any flexible material, such as, for example, a thin elastomeric material, plastic, rubber, or even a thin piece of metal.
  • An actuator such as, for example, piston 106 is connected to diaphragm 104 and extends through housing 102.
  • a sealing member 108 forms a fluid tight seal between piston 106 and housing 102.
  • the pumping system may be used in a wall-mounted dispenser, a tabletop dispenser or a personal hand held dispenser.
  • First chamber 112 has a one-way inlet valve 120 to allow a first fluid into pump 101 and prevents fluid in first chamber 112 from flowing out of first chamber 112.
  • First chamber 112 also includes a one-way outlet valve 140 to allow fluid to flow out of first chamber 112 through tube 142 and into mixing chamber 144.
  • second chamber 114 includes a one-way inlet valve 130 for allowing fluid into second chamber 114 and a one-way outlet valve 146.
  • One-way outlet valve 146 allows fluid to flow out of second chamber 114 and through tube 148 and into mixing chamber 144.
  • the one-way inlet and outlet valves above may be any type of one-way valve, such as, for example, a mushroom valve, a flapper valve, a plug valve, an umbrella valve, a poppet valve, a duck bill valve, etc.
  • An outlet nozzle 150 is located downstream of the mixing chamber for dispensing foam formed by combining the two fluids.
  • outlet nozzle 150 contains a series of baffles (not shown) to increase the mixing turbulence as the two fluids pass through and are mixed together.
  • the nozzle is narrow and elongated causing the two fluids to mix together.
  • Pump system 100 also includes a first fluid reservoir 124 for holding a first fluid and a second fluid reservoir 134 for holding a second fluid.
  • First fluid reservoir 124 is in fluid communication with first chamber 112 through tube 122 and one-way inlet valve 120.
  • Second fluid reservoir 134 is in fluid communication with second chamber 114 through tube 132 and inlet valve 130.
  • pump 101 connects directly to first and second fluid reservoirs 124, 134.
  • the system is inverted and pump 101 connects directly to first and second fluid reservoirs 124, 134, and tubes 122 and 132 may not be needed because the fluid flows into the first and second chambers 112, 114 due to gravitational forces.
  • first and second reservoirs 124, 134 are collapsible and tubes 122, 132 are not needed as vacuum pressure draws the fluid out of the reservoirs.
  • Figures 2 and 3 illustrate pump 101 in operation.
  • piston 106 is moved inward and diaphragm 104 deflects inward.
  • the volume of first chamber 112 is reduced which causes one-way inlet valve 120 to be in a closed position, and forces fluid within first chamber 112 to be expelled out of one-way outlet valve 140.
  • the volume of second chamber 114 expands creating a vacuum in second chamber 114.
  • the vacuum causes one-way outlet valve 146 to be closed and draws fluid from second fluid reservoir 134 in through one-way inlet valve 130.
  • diaphragm 104 deflects outward (illustrated in Figure 3 ) which causes the volume of first chamber 112 to expand closing one-way outlet valve 140 and drawing fluid from first reservoir 124 in through one-way inlet valve 120.
  • the volume of second chamber 114 is reduced causing one-way inlet valve 130 to be closed and forces fluid out through one-way outlet valve 146.
  • the first fluid flows from the first chamber 112 through tube 142 and into mixing chamber 144.
  • the second fluid flows from the second chamber 114 through tube 148 into mixing chamber 144.
  • a chemical reaction takes place.
  • the chemical reaction causes the fluid to foam, and the foam is expelled out of nozzle 150.
  • the first and second fluids enter the mixing chamber 144 at an intersecting angle with respect to each other so that the fluids collide together. In one embodiment, the angle is between 30 and 180 degrees.
  • the opening into the mixing chamber 144 from tubes 142, 148 restricts the flow of fluid so that the velocity of the first and second fluids is increased as they enter mixing chamber 144.
  • the first fluid includes weak acid and the second fluid includes a weak base.
  • a gas is formed.
  • one or both of the fluids may contain a wax. The gas created by the combination of the two fluids mixes with, and is trapped in, the wax and forms a thick foam.
  • Pump 101 made in accordance with the present invention may be any suitable size.
  • the pump 101 is large enough to move a suitable amount of fluid in a small amount of cycles. Such a pump may be operated at a low frequency.
  • pump 101 is small and is operated at a high frequency moving a small volume of each liquid into the mixing chamber 144 with each stroke. The rapid movement of small volumes of liquid cause a more violent mixing of the two liquids in mixing chamber 144.
  • the frequency that pump 101 cycles is greater than about 30 cycles per second and in another is greater than about 60 cycles per second.
  • Actuator 106 may be moved electrically or mechanically.
  • an electric motor rotates a gear and the rotational motion is converted into a reciprocating linear movement to move the piston 106 back and forth.
  • the electric motor may operate of an alternating current source, such as 120 VAC or a direct current source, such as 6 VDC, and may be battery operated.
  • a manual push bar attached to appropriate gearing converts a linear motion to a rotational motion and to a reciprocating motion to move piston 106 back and forth.
  • the gearing may be such that a relatively short stroke is converted into a large number of reciprocating cycles.
  • FIG. 4 illustrates a dispenser 400 having a pump 401.
  • Pump 401 is similar to pump 101.
  • Pump 401 has a housing 402 that includes a diaphragm 404 separating the housing 402 into a first chamber 412 and a second chamber 414.
  • First chamber 412 includes a first one-way check valve 420 that is in fluid communication with a first fluid reservoir 424.
  • First chamber 412 also includes a first one-way outlet check valve 440.
  • Second chamber 414 includes a second one-way check valve 430 that is in fluid communication with a second fluid reservoir 434.
  • Second chamber 414 also includes a second one-way outlet check valve 446.
  • a mixing chamber 444 is in fluid communication with first chamber 412 via tube 442 and is in fluid communication with second chamber 414 via tube 448.
  • An outlet nozzle 450 extends from mixing chamber 444 through housing 402 so that the foamed liquid may be dispensed.
  • Pump 401 also includes an actuator, such as, for example, piston 406.
  • Piston 406 extends through pump housing 402.
  • a seal 408 is provided between piston 406 and housing 402 to prevent fluid from flowing out of the pump housing 402.
  • Piston 406 is connected to an electric motor 450 and gearing 452 through linkage 454.
  • Electric motor 450 may be an AC motor or a DC motor.
  • electric motor 450 is battery operated and dispenser 400 includes a battery pack (not shown) for operating pump 401. Movement of piston 406 in a first direction pumps a first fluid from first chamber 412 into mixing chamber 444 and draws a second fluid from second fluid reservoir 434 into second chamber 414.
  • Movement of piston 406 in a second direction pumps the second fluid from second chamber 414 into mixing chamber 444 and draws the first fluid from first fluid reservoir 424 into first chamber 412.
  • a chemical reaction occurs causing the mixture of the first fluid and second fluid to form a foam.
  • the foam is dispensed through nozzle 450.
  • An actuator (not shown) is used to actuate the dispenser.
  • the actuator may be a mechanical actuator, but preferably is an electronic actuator and dispenser 402 is a hands free dispenser that detects an object and dispenses foam.
  • a manual operator such as, for example, a pushbar connected to a rack and pinion gear system (not shown), may be used.
  • a pushbar is connected to a rack that moves in a linear, back and forth motion when the pushbar is pushed and released. As the rack moves forward, the rack rotates a gear which translates the motion to a reciprocating back and forth motion to drive the pump 401.
  • a spring is used to return the pushbar back to its rest position and causes the gear to rotate in the opposite direction continuing to reciprocate in a back and forth motion to drive pump 401.
  • FIG. 5 illustrates another embodiment, which is not part of the invention, of a foam dispensing system 500 using two pumps to pump fluid that combines to form a foam.
  • Foam dispensing system 500 includes a dispenser housing 502. Located in and about dispenser housing 502 is an actuator and roller (not shown). In operation, the actuator causes the roller to roll down tubes 520 and 522 to force liquid down through the tubes 520, 522.
  • An example of such an actuator and roller system is shown and described in co-pending U.S. Non-Provisional Application Serial No. 13/605,17, filed on September 6, 2012 , which claims the benefits of and priority to U.S. Provisional Patent Application No. 61/531,935 filed September 7, 2011 .
  • Dispenser 500 includes a refill unit 508 that includes fluid reservoirs 514, 516, fitments 518A, 518B, tubes 520, 522, one-way check valves 530, 532, mixing chamber 524 and outlet 526.
  • refill unit 508 is made from two sheets of material, such as, for example, LDPE, HDPE, Polypro, Vinyl, EVA, PLA or HDPE. The two sheets of material are welded together as illustrated by the shaded areas 512. Fitments 518A and 518B are welded to the two sheets.
  • tubes 520 and 522 Prior to welding, or prior to completing the welding of the two sheets, tubes 520 and 522 are positioned through fitments 518A and 518B and between the two sheets so that when the sheets are welded in the area designated by A, tubes 520 and 522 are surrounded by the sheet material.
  • the sheets are welded to form two chambers 514, 516.
  • Chambers 514, 516 are illustrated as slightly different sizes; however, they may be made equal in size, or proportionate to the desired mix ratio of the two fluids.
  • tubes 520, 522 may be the same size or different sizes depending on the desired mix ratio.
  • Ends 521, 523 of tubes 520, 522 extend up to reservoirs 514, 516. In one embodiment, ends 521, 523 extend up into reservoirs.
  • one-way valves 540 and 542 are also included. They are located in tubes 520, 522 near ends 521, 523, respectively.
  • the one-way check valves described herein may be any type of one-way valve, such as, for example, a mushroom valve, a flapper valve, a plug valve, an umbrella valve, a poppet valve, a duck bill valve, etc.
  • These one-way check valves 540, 542 allow liquid to flow from reservoirs 514, 516 into tubes 520, 522, but not from tubes 520, 522 back up into reservoirs 514, 516.
  • Valves 530, 532 Located at the other end of tubes 520, 522 are valves 530, 532 and mixing chamber 524. Valves 530, 532 have a cracking pressure sufficient to prevent fluids from chambers 514, 616 from unintentional discharge. Valves 530, 532 open under sufficient pressure created by the roller (not shown) or other mechanism that forces fluid down tubes 520, 522. A nozzle 526 is located downstream of mixing chamber 524 and extends through housing 502 to dispense foam. In one embodiment, not shown, the roller in its rest position at the upper end of travel is positioned against tubes 520, 522 with sufficient force to pinch the tubes 520, 522 shut and provide additional insurance against unintentional discharge. In one embodiment, a shipping cap not shown is connected to nozzle 526 to prevent unintentional discharge during shipping.
  • valves 530, 532 cause fluid to accelerate as it passes through the valves 530, 532 to cause the two fluids to violently collide inside the mixing chamber 524.
  • the fluid inlets to mixing chamber 524 are positioned so that the fluid streams converge with each other in mixing chamber 524.
  • first chamber 112 and/or second chamber 114 may be configured with a second one-way inlet valve (not shown) allowing the first chamber 112 and/or second chamber 114 to draw in fluids from two or more sources that are mixed together in the first or second chambers 112, 114 before traveling to the mixing chamber 144.
  • elements described with one embodiment may be readily adapted for use with other embodiments.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reciprocating Pumps (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Multiple-Way Valves (AREA)
  • Accessories For Mixers (AREA)

Claims (14)

  1. Pompe (101 ; 401) comprenant :
    un carter (102 ; 402) ;
    un diaphragme (104 ; 404) placé à l'intérieur du carter (102 ; 402) ;
    le diaphragme (104 ; 404) séparant le carter (102 ; 402) en une première chambre (112 ; 412) et en une seconde chambre (114 ; 414) ;
    une première soupape d'entrée à une voie (120 ; 420) pour permettre à un premier fluide d'entrer dans la première chambre (112 ; 412) ;
    une première soupape de sortie à une voie (140 ; 440) pour permettre au premier fluide de sortir de la première chambre (112 ; 412) ;
    une seconde soupape d'entrée à une voie (130 ; 430) pour permettre à un second fluide d'entrer dans la seconde chambre (114 ; 414) ;
    une seconde soupape de sortie à une voie (146 ; 446) pour permettre au second fluide de sortir de la seconde chambre (114 ; 414) ;
    un actionneur (106 ; 406) relié au diaphragme (104 ; 404) ;
    pompe dans laquelle le mouvement de l'actionneur (106 ; 406), dans une première direction, a pour effet que le volume de la première chambre (112 ; 412) se contracte et a pour effet que le premier fluide est expulsé de la première chambre (112 ; 412), et a pour effet que le volume de la seconde chambre (114 ; 414) se dilate et aspire le second fluide à travers la seconde soupape d'entrée à une voie (130 ; 430) ; et
    le mouvement de l'actionneur (106 ; 406), dans la seconde direction, a pour effet que le volume de la première chambre (112 ; 412) se dilate, le premier fluide, au-delà de la première soupape d'entrée à une voie (120 ; 420), étant aspiré dans la première chambre (112 ; 412), et ledit mouvement contracte la seconde chambre (114 ; 414) ayant pour effet que le volume du second fluide est expulsé à travers la seconde soupape de sortie à une voie (146 ; 446),
    caractérisée en ce que la pompe comprend en outre un premier réservoir (124 ; 424) pour contenir le premier fluide et un second réservoir (134 ; 434) pour contenir le second fluide.
  2. Pompe (101 ; 401) selon la revendication 1, comprenant en outre une chambre de mélange (144 ; 444) pour recevoir le premier fluide et le second fluide.
  3. Pompe (101 ; 401) selon la revendication 2, comprenant en outre une buse de sortie (150 ; 450) pour distribuer le mélange du premier fluide et du second fluide, comme une mousse.
  4. Pompe (101 ; 401) selon la revendication 1, dans laquelle l'actionneur (106 ; 406) traverse une paroi de la pompe.
  5. Pompe (101 ; 401) selon la revendication 1, dans laquelle l'actionneur (106 ; 406) est un piston.
  6. Pompe (101 ; 401) selon la revendication 1, dans laquelle le diaphragme (104 ; 404) est un élément en élastomère.
  7. Pompe (101 ; 401) selon la revendication 1, dans laquelle le diaphragme (104 ; 404) est un élément en caoutchouc.
  8. Distributeur (100 ; 400) comprenant :
    un carter de distributeur et une pompe (101 ; 401) selon l'une quelconque des revendications 1 à 7.
  9. Distributeur (100 ; 400) selon la revendication 8, dans lequel la pompe (101, 401) fait un mouvement de va-et-vient à une cadence supérieure à environ 60 cycles par minute.
  10. Distributeur (100 ; 400) selon la revendication 8, dans lequel l'actionneur (106 ; 406) traverse une paroi d'un carter de la pompe.
  11. Procédé pour produire une mousse, consistant :
    à fournir une pompe (101 ; 401) ;
    à fournir un premier fluide et un second fluide, le premier fluide comprenant un acide et le second fluide comprenant une base dans laquelle une réaction chimique se produit entre le premier fluide et le second fluide, réaction chimique qui a pour effet la formation d'un gaz, et le mélange est expulsé comme une mousse,
    caractérisé en ce que ladite pompe (101 ; 401) a une première chambre (112, 412) et une seconde chambre (114 ; 414) séparées par un diaphragme (104 ; 404), en ce que le mouvement du diaphragme (104 ; 404) jusqu'à une première position a pour effet que le premier fluide est pompé jusqu'à une chambre de mélange (144 ; 444), et que le second fluide est aspiré dans la seconde chambre (114 ; 414) ; et
    en ce que le mouvement du diaphragme (104 ; 404) jusqu'à une seconde position a pour effet que le second fluide est pompé jusqu'à la chambre de mélange (144 ; 444) et que le premier fluide est aspiré dans la première chambre (112 ; 412).
  12. Procédé selon la revendication 11, dans lequel au moins l'un des premier et second fluides contient une cire.
  13. Procédé selon la revendication 11, dans lequel le fonctionnement de la pompe (101 ; 401) passant de la première position à la seconde position et revenant à la première position se produit à une cadence qui est supérieure à environ 60 cycles par seconde.
  14. Procédé selon la revendication 11, comprenant le fonctionnement de la pompe (101 ; 401) à une fréquence suffisante pour agiter les premier et second fluides dans la chambre de mélange (144 ; 444).
EP13708270.7A 2012-02-14 2013-02-13 Pompe à deux fluides Not-in-force EP2814368B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261598443P 2012-02-14 2012-02-14
PCT/US2013/025855 WO2013122993A2 (fr) 2012-02-14 2013-02-13 Pompe à deux fluides

Publications (2)

Publication Number Publication Date
EP2814368A2 EP2814368A2 (fr) 2014-12-24
EP2814368B1 true EP2814368B1 (fr) 2015-12-02

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EP13708270.7A Not-in-force EP2814368B1 (fr) 2012-02-14 2013-02-13 Pompe à deux fluides

Country Status (9)

Country Link
US (1) US20130206794A1 (fr)
EP (1) EP2814368B1 (fr)
CN (1) CN104271019A (fr)
AU (1) AU2013221699A1 (fr)
BR (1) BR112014020122A2 (fr)
CA (1) CA2864530A1 (fr)
MX (1) MX2014009839A (fr)
TW (1) TW201402947A (fr)
WO (1) WO2013122993A2 (fr)

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US11696591B2 (en) 2019-05-30 2023-07-11 Ecolab Usa Inc. Dispensing system for transferring chemical into a strainer basket assembly

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US9586217B2 (en) * 2012-10-04 2017-03-07 Arminak & Associates, Llc Mixing chamber for two fluid constituents
US9648992B2 (en) * 2013-12-19 2017-05-16 Gojo Industries, Inc. Pumps with vents to vent inverted containers and refill units having non-collapsing containers
WO2015127338A1 (fr) 2014-02-24 2015-08-27 Gojo Industries, Inc. Récipients non repliables mis à l'air libre, récipients de re-remplissage rechargeables, distributeurs et unités de re-remplissage
DK3160870T3 (en) * 2014-06-25 2018-06-06 Nestec Sa SUPPLY SYSTEM
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AU2013221699A1 (en) 2014-09-25
US20130206794A1 (en) 2013-08-15
MX2014009839A (es) 2014-09-16
CA2864530A1 (fr) 2013-08-22
EP2814368A2 (fr) 2014-12-24
BR112014020122A2 (pt) 2019-09-24
WO2013122993A2 (fr) 2013-08-22
WO2013122993A4 (fr) 2014-04-24
CN104271019A (zh) 2015-01-07
TW201402947A (zh) 2014-01-16
WO2013122993A3 (fr) 2014-02-27

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