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WO1990011237A1 - Tete de vaporisation pour une boite de vaporisation - Google Patents

Tete de vaporisation pour une boite de vaporisation Download PDF

Info

Publication number
WO1990011237A1
WO1990011237A1 PCT/NL1990/000035 NL9000035W WO9011237A1 WO 1990011237 A1 WO1990011237 A1 WO 1990011237A1 NL 9000035 W NL9000035 W NL 9000035W WO 9011237 A1 WO9011237 A1 WO 9011237A1
Authority
WO
WIPO (PCT)
Prior art keywords
spray
liquid
aperture
passage
bore
Prior art date
Application number
PCT/NL1990/000035
Other languages
English (en)
Inventor
Edgar Ivo Maria Van Der Heijden
Original Assignee
Airspray International B.V.
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 B.V. filed Critical Airspray International B.V.
Priority to DE9090905695T priority Critical patent/DE69000709D1/de
Priority to AT90905695T priority patent/ATE84003T1/de
Publication of WO1990011237A1 publication Critical patent/WO1990011237A1/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 for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/16—Actuating means
    • B65D83/20—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

  • Spray head for a spray can for a spray can.
  • 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
  • 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.
  • This spray head can be constructed in various manners, as defined in the subclaims.
  • Fig. 1 a diagrammatical representation of a spray head for elucidating the principle of the invention
  • FIG. 2 and 3 cross-sections of practical embodiments of the spray head of the invention.
  • 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.
  • air will be sucked inwards in the known manner through the bore 10 and will be mixed with the liquid, which will be enhanced'by arranging means for forming turbulences in the chamber 9
  • the mist jet emerging from the aperture 6 is mixed with air to such an extent that the liquid droplets formed will not coalesce, and a fine mist is obtained
  • 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.
  • 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)

Abstract

L'invention concerne une tête de vaporisation pour une boîte de vaporisation, comprenant une tige creuse dont l'alésage est adapté pour être mis en communication avec l'espace de liquide de ladite boîte de vaporisation, et aboutit près d'un ajutage de vaporisation présentant un orifice de sortie, de manière à pousser le liquide entraîné dans ledit alésage au moyen de la force extérieure de ladite boîte de vaporisation, par ledit orifice, afin de vaporiser ledit liquide. Selon l'invention, on a prévu dans le chemin d'écoulement (3, 4, 6) du liquide, un passage faisant office de pompe à éjecteur (7) entraîné par l'écoulement de liquide poussé vers l'extérieur, dont le côté d'aspiration (10) communique avec l'air ambiant.
PCT/NL1990/000035 1989-03-23 1990-03-20 Tete de vaporisation pour une boite de vaporisation WO1990011237A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE9090905695T DE69000709D1 (de) 1989-03-23 1990-03-20 Spruehkopf fuer spruehbehaelter.
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 (1)

Publication Number Publication Date
WO1990011237A1 true WO1990011237A1 (fr) 1990-10-04

Family

ID=19854351

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1990/000035 WO1990011237A1 (fr) 1989-03-23 1990-03-20 Tete de vaporisation pour une boite de vaporisation

Country Status (5)

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

Cited By (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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6701214A (fr) * 1966-02-02 1967-08-03
NL6708525A (fr) * 1966-07-16 1968-01-17
NL6803840A (fr) * 1967-03-17 1968-09-18
FR2016334A1 (fr) * 1968-08-24 1970-05-08 Prazisions Vent Deutsche
NL7804166A (nl) * 1977-04-26 1978-10-30 Oreal Vloeistofverstuiver.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6701214A (fr) * 1966-02-02 1967-08-03
NL6708525A (fr) * 1966-07-16 1968-01-17
NL6803840A (fr) * 1967-03-17 1968-09-18
FR2016334A1 (fr) * 1968-08-24 1970-05-08 Prazisions Vent Deutsche
NL7804166A (nl) * 1977-04-26 1978-10-30 Oreal Vloeistofverstuiver.

Cited By (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

Also Published As

Publication number Publication date
AU5351690A (en) 1990-10-22
JPH04504244A (ja) 1992-07-30
EP0464122B1 (fr) 1992-12-30
EP0464122A1 (fr) 1992-01-08
NL8900729A (nl) 1990-10-16

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