WO1991000229A1 - Ameliorations apportees a des distributeurs - Google Patents

Ameliorations apportees a des distributeurs Download PDF

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Publication number
WO1991000229A1
WO1991000229A1 PCT/GB1990/000794 GB9000794W WO9100229A1 WO 1991000229 A1 WO1991000229 A1 WO 1991000229A1 GB 9000794 W GB9000794 W GB 9000794W WO 9100229 A1 WO9100229 A1 WO 9100229A1
Authority
WO
WIPO (PCT)
Prior art keywords
cross
valve
sectional area
actuator
dispensing
Prior art date
Application number
PCT/GB1990/000794
Other languages
English (en)
Inventor
Hazel Pool
Arthur Richard Speed
Original Assignee
Reckitt & Colman Products Limited
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10658940&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1991000229(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Reckitt & Colman Products Limited filed Critical Reckitt & Colman Products Limited
Priority to AT90907355T priority Critical patent/ATE93477T1/de
Priority to BR909007412A priority patent/BR9007412A/pt
Priority to CA002060662A priority patent/CA2060662C/fr
Publication of WO1991000229A1 publication Critical patent/WO1991000229A1/fr
Priority to NO91915026A priority patent/NO915026L/no
Priority to FI916034A priority patent/FI91737C/fi
Priority to HK98107222A priority patent/HK1008002A1/xx

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
    • B65D83/44—Valves specially adapted therefor; Regulating devices
    • B65D83/48—Lift valves, e.g. operated by push action

Definitions

  • This invention relates to dispensers and, more specifically, to the dispensing of flowable materials from gas-pressurized containers.
  • valve When the container is to be used erect the valve is conveniently located in the upper regions of the container and a dip tube within the container extends from the valve to the lower regions of the container so that, whilst the container is erect, the dip tube inlet is below the material/gas interface until substantially the whole of the material content of the container has been dispensed.
  • valve is opened by depressing an actuator and the valve port opens to a chamber within the actuator from which the material is dispensed through a discharge outlet in the actuator.
  • Such a material dispensing arrangement is, hereinafter, referred to as "a dispensing arrangement of the type defined".
  • the material flowing through the dip tube passes through a first restriction, defined by the valve port, and then through a second restriction defined by the actuator discharge outlet.
  • Other restrictions may be imposed by the valve housing, the tail-piece and the dip-tube.
  • the valve may include more than one valve port and/or the actuator may have more than one discharge outlet.
  • cross-sectional area of the valve port shall mean the cross-sectional area of the valve port in a single valve port arrangement and the sum of the cross-sectional areas of all the valve ports in a multi- port valve port arrangement and the term "cross-sectional area o the actuator outlet” shall mean the cross-sectional area of the actuator outlet in a single actuator outlet arrangement and the sum of the cross-sectional areas of all the actuator outlets in a multi-outlet arrangement.
  • liquefied gases When such liquefied gases are used in a dispensing arrangement of the type defined vaporization of the liquefied gas establishes the gas space at a pressure sufficient to propel the material contents out of the container and, as material content is discharged and the volume of the gas space increases, the liquefied gas vaporizes within the container, thus to maintain a substantially uniform material-propelling gas pressure in the head space until substantially all the material content has been discharged.
  • the liquefied gases in being readily usable with a wide range of products, in allowing containers to be charged with material contents often in excess of 70% of the container volume and in allowing the use of relatively cheap low pressure container in a wide variety of materials, have substantially dominated the dispensing industry for the past forty years.
  • non-liquefied gases have now been recognised as harmful to the environment or having other undesirable features and the dispensing arrangement industry has been forced to seek alternative systems, essentially using compressed gases virtually all of which remain in their gaseous phase for all operating parameters of the dispensing arrangement and which gases are, hereinafter, referred to as "non-liquefied gases".
  • Gases obey the gas laws, at stable temperature the pressure reduces proportional with increase in volume and for non-liquefied gases the initial gas content must be sufficient to maintain a pressure adequate to propel an acceptable volume of the material content of the dispensing arrangement up the dip tube and through the valve arrangement.
  • the gas pressure depends upon the volume of the material content in the dispensing arrangement the dispensing arrangement with its valve and actuator arrangement must be designed to safely withstand the initial high gas pressure as will exist when the dispensing arrangement is charged with its prescribed material content.
  • a dispensing arrangement can be designed to meet the above propellant requirements with the initial gas pressure little more than 100 p.s.i. (0.703 kg/cm 2 ).
  • the liquefied gases used with certain material contents, solvents for material contents or additives offer a further advantage in that the said liquefied gases can be dispersed through the material content in the dispensing arrangement.
  • outlet the entrained liquefied gas vaporizes, breaking up the disch-arging material into discrete particles and blowing the particles apart to form a relatively constant spray pattern.
  • This advantage is particularly useful when the material content is a liquid, whereupon vaporization of the liquefied gas leaving the actuator outlet breaks the liquid material content into fine droplets, particularly advantageous for many applications such as hair sprays, air fresheners and liquid insecticides. Additional breakup can be achieved by bleeding propellant gas into the liquid stre.am from the vapour phase.
  • the reasons for this are, as will be apparent from the foregoing description, that the pressure of the non-liquefied gas propellant will be continuously reducing as material content is discharged from the dispensing arrangement and without liquefied gas in the material being dispensed there can be no "blowing apart" of the material being dispensed.
  • the reduction in pressure within the dispensing arrangement, with use, also reduces the flow rate of the material being dispensed.
  • the present invention seeks to provide a dispensing arrangement of the type defined capable of affording substantially constant discharge characteristics for a material being dispensed for the greater part of the life of the dispensing arrangement.
  • a dispensing arrangement of the type defined for use with non- liquefied gases characterized in that the cross-sectional area of the valve port is greater than the cross-sectional area of the actuator outlet.
  • the cross-sectional area of the valve port is greater than twice the cross-sectional area of the actuator outlet, more preferably the cross-sectional area of the valve port is greater than five times the cross-sectional area of the said actuator outlet and most preferably the said cross- sectional area of the valve port is greater than ten times the cross-section ⁇ l area of the actuator outlet.
  • the actuator outlet has a cross-sectional n area of from 0.02 mmr to 0.126 mm and, more preferably, from 0.04 mm 2 to 0.071 mm 2 .
  • the actuator has a single outlet having a diameter of 0.25 mm.
  • the cross-sectional area of the valve port is 0.25 mm.
  • 9 9 9 is from 0.196 mm -6 to 1.57 ⁇ r more preferably from 0.2 m ⁇ r' to
  • valve has more than one port and in a more preferred embodiment the said valve has four ports.
  • valve ports are preferably of the same diameter and most preferably the diameters of the valve ports are in the region of 0.5 mm.
  • the invention also envisages dispensing arrangements, of the type defined, having the actuator outlet/valve port relationship according to the invention, charged with a non- liquefied gas.
  • Fig. 1 shows a vertical cross-section through a valve system for a dispensing arrangement in accordance with the present invention
  • Fig. 2 shows a view of the valve port arrangement, on an enlarged scale with respect to Fig 1, with the valve port open,
  • Fig. 3 shows, graphically, how the ' discharge rates through a fixed valve port differ with different actuator outlets for a liquid material having a viscosity of 510 c.p.s.
  • Fig. 4 shows, graphically, the results of an experiment, identical to that illustrated in Fig. 3 but using air as the non- liquefied gas, and
  • Fig. 5 shows, graphically, the results of an experiment identical to that shown in Fig. 4, for a liquid material having a viscosity of 20 c.p.s. (mPa s)
  • a dispensing arrangement generally comprises a the valve system, supported by a conventional cup 11 intended to close the opening in a container C, generally comprising a body 12, rigidly crimped into the cup 11 within the container C, with an actuator/valve assembly supported by the body 12 and axially displaceable relative thereto.
  • the body 12 is a body of revolution defining a large bore 13 with a small through bore 14, axially aligned with and opening to the bore 13.
  • a dip-tube T is attached to the outer cylindrical surface of the wall defining the bore 14 and extends into the container C to open in the lower regions of the said container C.
  • the body 12 includes an annular flange 15 at that radial end to which the bore 14 opens and an annular, flexible, resilient gasket 16 has its radially outermost parts clamped between the flange 15 and the cup 11.
  • a coil compression spring 18 acts on the block 17b and continuously urges the block 17b against the gasket 16.
  • the valve stem 17 has an actuator button 19 secured thereon.
  • the valve stem is a friction fit in the bore of the gasket 16 and includes a valve port, defined by a radial opening" 17c in the wall of the valve stem 17 opening to the bore 17a.
  • valve port 17 is so located from the block 17b that said valve port 17b is closed by the gasket 16 when the gasket is unflexed (as shown in Fig 1) and is open to the bore 13 when the actuator button 19 is depressed, thereby forcing the valve stem 17 into the body 12 and flexing the gasket 16 inwardly of the container as shown in Fig 2.
  • valve stem 17 At its end entered into the actuator button 19 the bore 17a_ of valve stem 17 opens to a chamber 20, which may include a conventional swirl block 21, and an exit passage 19a from the chamber 20 is closed by an insert plate 22 in the actuator which has an aperture 22a_ therethrough defining the actuator discharge outlet.
  • a chamber 20 which may include a conventional swirl block 21, and an exit passage 19a from the chamber 20 is closed by an insert plate 22 in the actuator which has an aperture 22a_ therethrough defining the actuator discharge outlet.
  • the valve arrangement described thus far is of a conventional design, with the actuator button 19 released the spring 18 urges the valve block 17b and stem 17 upwardly to the position shown in Fig. 1 where the gasket 16 is sealing the valve port 17c.
  • the block 17b When the actuator button 19 is depressed the block 17b is displaced downwardly away from the gasket 16, the gasket 16 deflects into the bore 13 exposing the valve port 17c and, under the action of the propellant pressure gas in container C, container contents are driven up the dip tube T into the bore 13 and therefrom through the valve port 17c, up the blind bore 17ja to the chamber 20 and therefrom along the passage 19a_ and through the actuator outlet 22a to discharge.
  • the cross-sectional area of the valve port 17c would be similar to the cross sectional area of the actuator outlet 22a_ but, for a material dispensing arrangement of the type defined in accordance with the present invention, this relationship is disregarded and the actuator outlet has a very much smaller cross-sectional area than the valve port.
  • the actuator outlet 22a may conveniently have a diameter of 0.25 mm, giving a cross-sectional area of 0.049087 mm 2 (0.049 mm 2 ), and the valve port, conveniently four ports 17c on a common plane at right angles to the axis of the stem 17, may have each port 0.5 mm in diameter, giving a cross-sectional area of 0.7854 mm 2 (0.79 mm 2 ).
  • each container was charged to 55% of its volume with a furniture polish having a viscosity of 510 c.p.s.(mPa s) and the remaining volume in each container was charged with o nitrogen to a pressure of 100 p.s.i. (7.03 kg/c ⁇ r"). All six dispensing arrangements had a valve port arrangement comprising four 0.5 ran diameter ports, giving a cross-sectional area of
  • the dispensing arrangements differed only in the cross-sectional areas of their respective actuator outlets and
  • Table II shows the different actuator outlet sizes for the six dispensing arrangements.
  • Fig. 3 illustrates, graphically, the mean values obtained for the different actuator outlets under trial, the discharge in grams being plotted vertically and the number of 10 second sprays being 0 plotted horizontally.
  • Fig. 3 clearly shows that as the cross-sectional area of the actuator outlet was reduced the rate of distribution became more uniform and, contrary to what one would expect with a continuously falling propellant gas pressure, the dispensing 15 arrangements E and F illustrated substantially uniform rates of discharge for more than 90% of the material contents.
  • the containers varied only in the cross-sectional area of their respective valve ports as shown in Table III;
  • each dispensing arrangement to be tested was supported above a horizontal target plane with its axis inclined at an angle of 40 degrees c to the horizontal (the actuator being uppermost) and with the centre of the dispensing arrangement 200 mm above the target plane.
  • the container was then discharged for 4 seconds and the area of the target plane covered by the dispensed material was measured and noted.
  • ⁇ dispensing arrangements was a furniture polish having a viscosity of
  • each container was charged to 55% of its volume with a laundry spray material having a viscosity of in the region of 20 c.p.s.(mPa s)and the remaining volume in each container was charged with air to a pressure of 100 p.s.i. (7.03 kg/cm 2 ).
  • valve port arrangement comprising four 0.5 mm diameter ports, giving a cross- sectional area of 0.79 mm 2 .
  • the dispensing arrangements differed only in the cross- sectional areas of their respective actuator outlets and Table V shows the different actuator outlet sizes for the six dispensing arrangements.
  • Each dispensing arrangement was discharged in a series of 10 second sprays and the material discharged in each spray was measured and noted.

Landscapes

  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Vending Machines For Individual Products (AREA)
  • Telephone Function (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Coating Apparatus (AREA)
  • Physical Deposition Of Substances That Are Components Of Semiconductor Devices (AREA)
  • Paper (AREA)
  • Discharge Of Articles From Conveyors (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Disintegrating Or Milling (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Materials For Medical Uses (AREA)
  • Sealing Material Composition (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

Les agencements distributeurs, qui comprennent un récipient pressurisé par gas destiné à contenir un matériau à distribuer par un clapet dont l'actionnement ouvre un passage de décharge à travers le clapet et à travers un autre clapet et un actuateur de clapet jusqu'à une sortie de décharge de l'actuateur, sont bien connus. La présente invention propose un agencement distributeur pressurisé par gas non liquéfié, qui peut être utilisé avec des pressions de gaz initiales relativement faibles et qui est capable de déchargé un pourcentage relativement élevé du contenu du distributeur avec une structure de vaporisation acceptable. On obtient ces avantages en concevant l'agencement distributeur proposé avec une superficie de section transversale pour l'orifice (17c) du clapet plusieurs fois supérieure à la superficie de section transversale de la sortie (22a) de l'actuateur. Dans un mode de réalisation mentionné, la sortie de l'actuateur présente une superficie de section transversale dans cette région de 0,0049 mm2, alors que la superficie de section transversale totale des orifices du clapet, qui sont au nombre de quatre, est environ seize fois supérieure.
PCT/GB1990/000794 1989-06-23 1990-05-21 Ameliorations apportees a des distributeurs WO1991000229A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AT90907355T ATE93477T1 (de) 1989-06-23 1990-05-21 Spender.
BR909007412A BR9007412A (pt) 1989-06-23 1990-05-21 Dispositivo de distribuicao
CA002060662A CA2060662C (fr) 1989-06-23 1990-05-21 Distributeurs
NO91915026A NO915026L (no) 1989-06-23 1991-12-19 Dispenser
FI916034A FI91737C (fi) 1989-06-23 1991-12-20 Parannuksia annostelijoissa tai niihin liittyen
HK98107222A HK1008002A1 (en) 1989-06-23 1998-06-27 Improvements in or relating to dispensers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8914442A GB2233395B (en) 1989-06-23 1989-06-23 Improvements in or relating to dispensers
GB8914442.2 1989-06-23

Publications (1)

Publication Number Publication Date
WO1991000229A1 true WO1991000229A1 (fr) 1991-01-10

Family

ID=10658940

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1990/000794 WO1991000229A1 (fr) 1989-06-23 1990-05-21 Ameliorations apportees a des distributeurs

Country Status (19)

Country Link
EP (1) EP0479796B1 (fr)
JP (1) JPH04505903A (fr)
AT (1) ATE93477T1 (fr)
AU (1) AU633581B2 (fr)
BR (1) BR9007412A (fr)
CA (1) CA2060662C (fr)
DE (1) DE69002949C5 (fr)
DK (1) DK0479796T3 (fr)
ES (1) ES2044589T3 (fr)
FI (1) FI91737C (fr)
GB (1) GB2233395B (fr)
GR (1) GR1002546B (fr)
HK (2) HK1008003A1 (fr)
IE (1) IE64132B1 (fr)
NO (1) NO915026L (fr)
NZ (1) NZ233906A (fr)
PT (1) PT94445B (fr)
WO (1) WO1991000229A1 (fr)
ZA (1) ZA904437B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0764593A1 (fr) * 1995-09-21 1997-03-26 L'oreal Valve pour pulvérisateur

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2020223C (fr) * 1989-07-19 1996-02-27 Shinya Kobayashi Bouchon pour aerosols
PT1357057E (pt) 2002-04-22 2006-12-29 Sara Lee De Nv Recipiente para uma substância a ser pulverizada, tampa para um tal recipiente, e método de fabrico de um tal recipiente
US7621468B2 (en) 2007-10-01 2009-11-24 The Procter & Gamble Company System for pressurized delivery of fluids

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1492188A (fr) * 1965-06-21 1967-08-18 Perfectionnements aux vannes distributrices
EP0008109A1 (fr) * 1978-08-08 1980-02-20 Joseph George Spitzer Récipient pour aérosol et système de valve destinés à des fluides propulseurs liquéfiés inflammables et procédé pour émettre un brouillard d'une très faible inflammabilité
US4216884A (en) * 1977-09-17 1980-08-12 Coster Tecnologie Speciali S.P.A. Aerosol dispensing valves

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6233115A (ja) * 1985-08-05 1987-02-13 Kao Corp 人体塗布用噴霧組成物

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1492188A (fr) * 1965-06-21 1967-08-18 Perfectionnements aux vannes distributrices
US4216884A (en) * 1977-09-17 1980-08-12 Coster Tecnologie Speciali S.P.A. Aerosol dispensing valves
EP0008109A1 (fr) * 1978-08-08 1980-02-20 Joseph George Spitzer Récipient pour aérosol et système de valve destinés à des fluides propulseurs liquéfiés inflammables et procédé pour émettre un brouillard d'une très faible inflammabilité

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Vol. 214, No. 11, (C-434), 10 July 1987; & JP-A-62033115 (Kao Corp.) 13 February 1987 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0764593A1 (fr) * 1995-09-21 1997-03-26 L'oreal Valve pour pulvérisateur
FR2739086A1 (fr) * 1995-09-21 1997-03-28 Oreal Valve pour pulverisateur et pulverisateur ainsi equipe

Also Published As

Publication number Publication date
FI91737C (fi) 1994-08-10
GB2233395A (en) 1991-01-09
HK1008002A1 (en) 1999-04-30
EP0479796A1 (fr) 1992-04-15
EP0479796B1 (fr) 1993-08-25
NO915026D0 (no) 1991-12-19
PT94445B (pt) 1997-05-28
DK0479796T3 (da) 1993-10-18
DE69002949T2 (de) 1993-12-23
NO915026L (no) 1991-12-19
NZ233906A (en) 1992-04-28
FI916034A0 (fi) 1991-12-20
AU5660490A (en) 1991-01-17
ZA904437B (en) 1991-03-27
DE69002949C5 (de) 2006-05-18
ATE93477T1 (de) 1993-09-15
JPH04505903A (ja) 1992-10-15
ES2044589T3 (es) 1994-01-01
PT94445A (pt) 1992-03-31
GB8914442D0 (en) 1989-08-09
IE64132B1 (en) 1995-07-12
GB2233395B (en) 1994-01-12
BR9007412A (pt) 1992-04-28
GR1002546B (el) 1997-01-28
IE902249L (en) 1990-12-23
IE902249A1 (en) 1991-01-16
GR900100454A (el) 1991-11-15
HK1008003A1 (en) 1999-04-30
FI91737B (fi) 1994-04-29
AU633581B2 (en) 1993-02-04
DE69002949D1 (de) 1993-09-30
CA2060662C (fr) 2000-02-01

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