WO2001040077A1 - Dispositif de formation de mousses dote d'un element de regulation de flux - Google Patents

Dispositif de formation de mousses dote d'un element de regulation de flux Download PDF

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Publication number
WO2001040077A1
WO2001040077A1 PCT/EP2000/012071 EP0012071W WO0140077A1 WO 2001040077 A1 WO2001040077 A1 WO 2001040077A1 EP 0012071 W EP0012071 W EP 0012071W WO 0140077 A1 WO0140077 A1 WO 0140077A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
suction pipe
foam
passage
regulation element
Prior art date
Application number
PCT/EP2000/012071
Other languages
English (en)
Inventor
Stefano Santagiuliana
Original Assignee
Taplast S.P.A.
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 Taplast S.P.A. filed Critical Taplast S.P.A.
Priority to AU23614/01A priority Critical patent/AU2361401A/en
Publication of WO2001040077A1 publication Critical patent/WO2001040077A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/32—Dip-tubes

Definitions

  • the present invention relates to a device for formation and delivery of foam and more particularly a flow regulation element for the liquid fed to mixing means of liquid and air in said device.
  • foams are just a suitable mixture of liquid and air and are implemented with several means, for instance with pumps having at least one chamber for mixing liquid and air, and foam forming means such as filtering elements arranged at the outlet of the mixing chamber on the delivery duct or for example devices generating foam without using pumps but only with a manual deformation of the container for the liquid.
  • foams are more and more used for instance in the field of cleaning furniture and domestic appliances such as ovens, tiles or hobs, or for personal care such as shampoos and shaving soap, hair or skin care foams, medical foams and the like.
  • the device for formation and delivery of foam either a pump or other device, requires a very accurate design of the various foam generating members.
  • Some known devices provide for a pre-metering of air and liquid that is then mixed in two separate chambers, the one for air and the other for liquid, and then a subsequent joining in a mixing chamber of air and liquid in predetermined proportions that are clearly function also of the cross sections of the ducts for air and liquid inflow to the mixing chambers, of inflow velocity of both fluids, of inertia of the valve bodies and also of the physical features of the filtering elements making the foam with micro-holes of suitable size.
  • the feeding ducts of both fluids must be properly sized so that a predetermined ratio between air and liquid is respected. From the foregoing it is clear that the achievement of a foam with acceptable features does not depend only upon the design of the device for formation and delivery of foam, but also on other factors such as for instance the particular physical structure of the filtering element for foam formation, and clearly also on the type of liquid that must be transformed into foam. More particularly the liquid that must be transformed should have peculiar characteristics of density and viscosity that play a very important role for the flow rate of liquid inside the liquid inflow ducts to the mixing chamber and also for the ability to mix the liquid with air. Indeed a pump that succeeds to generate a perfect foam of one product, does not warrant to be able to carry out the same acceptable effect with another type of product.
  • the invention aims to create a device for formation and delivery of liquids in the form of foams that can be used with liquids of different density and viscosity characteristics, so as to withstand abroad range of variations of these characteristics of the liquid.
  • another object is to modify in the same device and in a broad range, the liquid flow rate so as to change the ratio between mixed air and liquid without affecting the constructional features of the pump, even using identical pumps in which only the flow rate is varied while the pump design remains the same.
  • a device for the formation and delivery of foam made by mixing a liquid contained in a bottle on the neck of which said device is arranged and comprising: at least a suction pipe of said liquid connected to said device; means for mixing said air and said liquid; foam formation means associated with foam delivery means, said device according to the wording of the main claim being characterized by having at least an element regulating the fluid flow associated with said at least one suction pipe, said regulation element being provided with at least a hole adapted to cause passage of said liquid from said container to said device, said at least one regulation element generating a resistance to passage of said liquid in said suction pipe.
  • the regulation element is an insert provided with a hole which is inserted into said suction pipe.
  • said regulation element consists of an occlusion of the suction pipe, at least one gauged hole being made in said occlusion.
  • a resistance to liquid passage is inserted, that can be measured thus changing the flow rate of the liquid as well as the ratio relative to air entering the mixing chamber.
  • the regulation element associated with the suction pipe can be inserted on the suction pipe before assembling said device or even before coupling the device to the container filled with liquid.
  • foam delivery devices substantially identical and than differentiate said devices with the insert to be applied according to the liquid that should be filled in the container.
  • FIG. 1 is a sectional view of a container provided with a pump for making and delivering foam, whose suction pipe is provided with the device of the invention shown on an enlarged scale in Fig. 1a;
  • Fig. 2 shows another type of device for formation and delivery of foam, where Fig.2a shows the regulation element inserted in the suction pipe.
  • container 1 is filled with a liquid 2 and on its neck the device 3 that in this example is a diaphragm pump with a chamber 4 for forming the air liquid mixture.
  • the device 3 that in this example is a diaphragm pump with a chamber 4 for forming the air liquid mixture.
  • the tablet transforming the air liquid mixture into foam, the liquid reaching through the suction pipe 6 the mixing chamber 4 together with air.
  • a little tube 7 is inserted, for example made with the same plastic material of which the suction pipe is made, said tube having a central hole 8.
  • Said tube 7 has a length L. Hole 8 and length L of the hole make a resistance to fluid passage and in this way cause a deceleration of the fluid flow rate to the mixing chamber 4.
  • Fig.2 shows another device for formation and delivery of foam that in this case is obtained through deformation of the container 10 filled with liquid 11 instead of a pump.
  • the mixing chamber of air and liquid is indicated with reference numeral 12 and the filtering element carrying out transformation of mixture into foam is indicated with numeral 13.
  • insert 15 is arranged, in this case at the upper end of the pipe but with fully similar effect as said insert is provided with a hole 16 having a length H also causing a deceleration of liquid inflow and therefore a different mixing ratio between air and liquid.
  • a hole 16 having a length H also causing a deceleration of liquid inflow and therefore a different mixing ratio between air and liquid.
  • nothing prevents that insert may be provided with more than one hole.
  • the insert may also be integral with said pipe, in other words be an occlusion of the pipe that can then be drilled with any suitable means, for instance by using laser beams to carry out gauged holes with any desired diameter.
  • Another component that may play a role in respect of the mixing ratio between air and liquid is the roughness of surface 17 of duct 16. Also this surface roughness may play a non negligible role in slowing down liquid inflow in the mixing chamber.

Abstract

L'invention concerne un dispositif de formation et de distribution de mousse produite par mélange d'air et d'un liquide (2) contenu dans une bouteille sur le col de laquelle ledit dispositif (3) est placé, ledit dispositif comprenant au moins un tube d'aspiration (6) pour ledit liquide (2) relié audit dispositif (3), un dispositif de mélange d'air et du liquide, un dispositif de formation de mousse relié au dispositif de distribution de mousse. Ledit dispositif présente au moins un élément de régulation pour le passage du fluide relié à un des tubes d'aspiration, ledit élément de régulation (7) étant doté d'au moins un trou (8) destiné au passage du liquide du récipient (1) audit dispositif (3), un des éléments (7) occasionnant une résistance au passage du liquide vers le tube d'aspiration.
PCT/EP2000/012071 1999-12-02 2000-12-01 Dispositif de formation de mousses dote d'un element de regulation de flux WO2001040077A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU23614/01A AU2361401A (en) 1999-12-02 2000-12-01 Foams producing device with flow regulation element

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1999VI000247 IT1307525B1 (it) 1999-12-02 1999-12-02 Dispositivo per la formazione ed erogazione di schiume con elemento diregolazione del flusso del liquido diretto ai mezzi di miscelazione
ITVI99A000247 1999-12-02

Publications (1)

Publication Number Publication Date
WO2001040077A1 true WO2001040077A1 (fr) 2001-06-07

Family

ID=11427222

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/012071 WO2001040077A1 (fr) 1999-12-02 2000-12-01 Dispositif de formation de mousses dote d'un element de regulation de flux

Country Status (3)

Country Link
AU (1) AU2361401A (fr)
IT (1) IT1307525B1 (fr)
WO (1) WO2001040077A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6612468B2 (en) 2000-09-15 2003-09-02 Rieke Corporation Dispenser pumps
US7802701B2 (en) 2005-01-14 2010-09-28 Rieke Corporation Up-lock seal for dispenser pump

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1280428A (fr) * 1961-02-17 1961-12-29 Cooper Pulvérisateur
US4148419A (en) * 1976-02-17 1979-04-10 Metal Box Limited Aerosol valve assembly having gas diffuser for charging
US4154378A (en) * 1976-11-04 1979-05-15 L'oreal Metering valve for pressurized container
US5125546A (en) * 1988-11-22 1992-06-30 Dmw (Technology) Limited Flow discharge valve
FR2672038A1 (fr) * 1991-01-25 1992-07-31 Oreal Dispositif distributeur de mousse a partir d'un recipient pressurise.
FR2749568A1 (fr) * 1996-06-10 1997-12-12 Oreal Distributeur de produit liquide a polymere filmogene sous forme de fines gouttelettes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1280428A (fr) * 1961-02-17 1961-12-29 Cooper Pulvérisateur
US4148419A (en) * 1976-02-17 1979-04-10 Metal Box Limited Aerosol valve assembly having gas diffuser for charging
US4154378A (en) * 1976-11-04 1979-05-15 L'oreal Metering valve for pressurized container
US5125546A (en) * 1988-11-22 1992-06-30 Dmw (Technology) Limited Flow discharge valve
FR2672038A1 (fr) * 1991-01-25 1992-07-31 Oreal Dispositif distributeur de mousse a partir d'un recipient pressurise.
FR2749568A1 (fr) * 1996-06-10 1997-12-12 Oreal Distributeur de produit liquide a polymere filmogene sous forme de fines gouttelettes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6612468B2 (en) 2000-09-15 2003-09-02 Rieke Corporation Dispenser pumps
US7802701B2 (en) 2005-01-14 2010-09-28 Rieke Corporation Up-lock seal for dispenser pump

Also Published As

Publication number Publication date
AU2361401A (en) 2001-06-12
IT1307525B1 (it) 2001-11-06
ITVI990247A1 (it) 2001-06-02

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