EP0464122B1 - Sprühkopf für sprühbehälter - Google Patents

Sprühkopf für sprühbehälter Download PDF

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Publication number
EP0464122B1
EP0464122B1 EP19900905695 EP90905695A EP0464122B1 EP 0464122 B1 EP0464122 B1 EP 0464122B1 EP 19900905695 EP19900905695 EP 19900905695 EP 90905695 A EP90905695 A EP 90905695A EP 0464122 B1 EP0464122 B1 EP 0464122B1
Authority
EP
European Patent Office
Prior art keywords
spray
aperture
liquid
passage
bore
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.)
Expired - Lifetime
Application number
EP19900905695
Other languages
English (en)
French (fr)
Other versions
EP0464122A1 (de
Inventor
Edgar Ivo Maria Van Der Heijden
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.)
Airspray International BV
Original Assignee
Airspray International BV
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 Airspray International BV filed Critical Airspray International BV
Priority to AT90905695T priority Critical patent/ATE84003T1/de
Publication of EP0464122A1 publication Critical patent/EP0464122A1/de
Application granted granted Critical
Publication of EP0464122B1 publication Critical patent/EP0464122B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65D83/16—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 characterised by the actuating means
    • B65D83/20—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 characterised by the actuating means operated by manual action, e.g. button-type actuator or actuator caps
    • 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
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0425—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid without any source of compressed gas, e.g. the air being sucked by the pressurised liquid
    • 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
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/06—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane
    • B05B7/062—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet
    • B05B7/063—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet one fluid being sucked by the other
    • 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
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/10—Spray pistols; Apparatus for discharge producing a swirling discharge

Definitions

  • the invention relates to a spray head for a spray can, comprising a hollow stem having a bore which is adapted to be brought into communication with the liquid space of the spray can, and which on the other hand, terminates near a spray nozzle having an exit aperture, so as to force liquid driven into said bore by the outward pressure of the spray can through said aperture for being sprayed.
  • the droplets of the sprayed liquid formed in the nozzle will still contain driving agent which immediately evaporate, so that the droplets will be reduced which enhances the formation of a fine mist.
  • a spray head for a spray can comprising a jet pump to be operated by propellant gas from the can, the pressure reduction being used for drawing a foamable liquid upwards from the can, additional passages communicating with the outside being present for drawing ambient air inwards, the propellant and the air being used for forming a foam.
  • This jet pump does not comprise a jet nozzle for forming droplets to be ejected as a mist.
  • This spray head can be constructed in various manners, as defined in the subclaims.
  • a spray head 1 is shown in a simplified manner, which head comprises a stem 2 with a bore 3, which stem is to be mounted on a spray can, and is designed for opening a dispensing valve not shown when being pressed downwards. Then the liquid to be sprayed will be driven into the bore 3 by the gas or vapour pressure acting within the spray can.
  • the bore 3 is continued by a transverse bore 4 of a spray nozzle terminating in a dispensing aperture 6. So far the present head 1 corresponds with the current spray heads.
  • a jet pump 7 is diagrammatically indicated.
  • This pump comprises a jet nozzle 8 through which the liquid driven through the bore 3 flows, said nozzle 8 opening into a wider chamber 9 communicating, via an additional bore 10, with the ambient air.
  • the jet pump 7 diagrammatically shown can be realised in many other ways, e.g. in the form of a venturi tube. Moreover the location thereof in the bore 3 can be varied. It can be favourable to arrange it as closely as possible near the aperture 6, and this in view of manufacturing as well in view of the mixing effect.
  • Fig. 2 a first practical embodiment of the spray head 1 is shown. The parts thereof corresponding with Fig. 1 have been indicated therein with the same reference numerals.
  • the transverse bore 4 terminates into a substantially annular chamber 11 into which a cylindrical cap 12 has been inserted which has a front wall 13 in which the aperture 6 is provided.
  • the wall 13 defines, together with an end face 14 of a central piece 15 of the nozzle portion 5, a chamber 16 communicating with the bore 4 in which sloping baffles 17 can be arranged in order to allow the liquid to be brought in a revolving motion before emerging through the aperture 6.
  • This tube end and the aperture 6 form together the jet pump 7 as well as the spray nozzle 8 of Fig. 1.
  • This embodiment of the nozzle 5 is of the current design with the exception of the additional tube 18 opening into the aperture 6 which adaptation can easily be realised.
  • FIG. 3 shows still another practical embodiment in which, again, parts corresponding with Figs. 1 and 2 have been provided with the same reference numerals.
  • the tube 18 has been omitted, and before the end face 13 of the cap 12 a disc 19 directed parallel thereto is provided which, together with this end face 13, defines a passage 10′ forming the air suction passage.
  • a disc 19 directed parallel thereto is provided which, together with this end face 13, defines a passage 10′ forming the air suction passage.
  • air suction openings 20 are provided, and in the centre of this disc an aperture 6′ has been formed which is situated coaxially with the aperture 6 of the cap and has substantially the same diameter.
  • the passage 10′ can be provided, if required, with guiding baffles for imparting a revolving motion to the air flow sucked in, which motion, as the case may be, can be opposite to that of the revolving motion of the liquid caused by the baffles 17.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Claims (5)

  1. Sprühkopf für Sprühbehälter mit einem Hohlschaft mit einer Bohrung, die in Verbindung gebracht werden kann mit dem Flüssigkeitsraum eines Sprühbehälters, und welche andererseits in eine Sprühdüse mündet, welche eine Austrittsöffnung aufweist, so daß eine Flüssigkeit, die in die Bohrung geführt wird, durch den Innendruck des Sprühbehälters zum Versprühen durch die Öffnung gedrückt wird, dadurch gekennzeichnet, daß die Sprühdüse (8, 16) sich in einen Durchlaß öffnet, welcher als Strahlpumpe (7) wirkt, welche durch den nach außen gedrückten Flüssigkeitsfluß angetrieben wird, wobei ein zusätzlicher Durchlaß (10, 10′) vorgesehen ist, welcher die Saugseite der Strahlpumpe (7) mit der umgebenden Luft verbindet.
  2. Sprühkopf nach Anspruch 1, dadurch gekennzeichnet, daß der als Strahlpumpe (7) arbeitende Durchlaß durch einen zusätzlichen Durchlaß (18) im Kopf (5) gebildet ist, welcher sich getrennt vom Flüssigkeitsdurchlaß (4, 16) in die Austrittsöffnung (6) öffnet, wobei die Öffnung soviel größer als der Außenumfang des zusätzlichen Durchlasses (18) ist, daß der Durchlaß für die aus dem Flüssigkeitsdurchlaß (16) austretende Flüssigkeit frei bleibt.
  3. Sprühkopf nach Anspruch 2, in welchem sich die Bohrung des Schaftes in eine Ringkammer öffnet, welche mit der Austrittsöffnung kommuniziert, dadurch gekennzeichnet, daß der zusätzliche Durchlaß (18) eine Bohrung (10) ist, die sich im wesentlichen koaxial mit der Ringkammer (16) erstreckt, wobei eine Wandung (14), die diese Kammer bestimmt, versehen ist mit einem Vorsprung, der sich in die Öffnung erstreckt und das Ende der Bohrung (10) umgibt.
  4. Sprühkopf nach Anspruch 1, bei welchem die Austrittsöffnung gebildet ist in einer Scheibe, die den Flüssigkeitsdurchlaß schließt, dadurch gekennzeichnet, daß der als Strahlpumpe (7) arbeitende Durchlaß durch eine zweite Scheibe (19) gebildet wird, die in geringem Abstand parallel an der Austrittsseite der ersten Scheibe (13) angeordnet ist, wobei die zweite Scheibe (19) versehen ist mit einer zweiten Öffnung (6′), die koaxial zur ersten Öffnung angeordnet ist und im wesentlichen den gleichen Durchmesser hat, wobei der Zwischenraum (10′) zwischen den beiden Scheiben (13, 19) nahe des Umfangs (10) mit der Umgebung kommuniziert.
  5. Sprühkopf nach Anspruch 4, dadurch gekennzeichnet, daß in dem Zwischenraum (10′) zwischen den beiden Scheiben (13, 19) Leitwände vorgesehen sind, die dem durch den Zwischenraum angesaugten Luftstrom eine Wirbelbewegung verleihen können.
EP19900905695 1989-03-23 1990-03-20 Sprühkopf für sprühbehälter Expired - Lifetime EP0464122B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90905695T ATE84003T1 (de) 1989-03-23 1990-03-20 Spruehkopf fuer spruehbehaelter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8900729 1989-03-23
NL8900729A NL8900729A (nl) 1989-03-23 1989-03-23 Verstuiverkop voor een spuitbus.

Publications (2)

Publication Number Publication Date
EP0464122A1 EP0464122A1 (de) 1992-01-08
EP0464122B1 true EP0464122B1 (de) 1992-12-30

Family

ID=19854351

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900905695 Expired - Lifetime EP0464122B1 (de) 1989-03-23 1990-03-20 Sprühkopf für sprühbehälter

Country Status (5)

Country Link
EP (1) EP0464122B1 (de)
JP (1) JPH04504244A (de)
AU (1) AU5351690A (de)
NL (1) NL8900729A (de)
WO (1) WO1990011237A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4426120A1 (de) * 1994-07-22 1996-01-25 Coster Tecnologie Speciali Spa Sprühkopf für einen Behälter für ein unter Druck stehendes Fluid

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3437272A (en) * 1966-02-02 1969-04-08 Abplanalp Robert H Valve actuator for pressurized dispensers
CH450310A (de) * 1966-07-16 1968-01-15 Werner & Mertz Gmbh Sprühkopf für Aerosol-Behälter
CH453240A (de) * 1967-03-17 1968-06-14 Luethi Fritz Auf eine Sprühdose aufsteckbare Betätigungsvorrichtung
DE1775543C3 (de) * 1968-08-24 1974-01-10 Deutsche Praezisions-Ventil Gmbh, 6234 Hattersheim Wirbelsprüheinrichtung zur Abgabe eines Produktes
FR2388732A1 (fr) * 1977-04-26 1978-11-24 Oreal Dispositif de distribution associe a un recipient pressurise par un gaz non liquefie

Also Published As

Publication number Publication date
JPH04504244A (ja) 1992-07-30
WO1990011237A1 (en) 1990-10-04
NL8900729A (nl) 1990-10-16
AU5351690A (en) 1990-10-22
EP0464122A1 (de) 1992-01-08

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