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EP0706830B1 - Un dispositif de pulvérisation actionnable manuellement qui utilise l'air comme fluide d'atomisation - Google Patents

Un dispositif de pulvérisation actionnable manuellement qui utilise l'air comme fluide d'atomisation Download PDF

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Publication number
EP0706830B1
EP0706830B1 EP94830434A EP94830434A EP0706830B1 EP 0706830 B1 EP0706830 B1 EP 0706830B1 EP 94830434 A EP94830434 A EP 94830434A EP 94830434 A EP94830434 A EP 94830434A EP 0706830 B1 EP0706830 B1 EP 0706830B1
Authority
EP
European Patent Office
Prior art keywords
liquid
duct
air
spray device
tubular body
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
EP94830434A
Other languages
German (de)
English (en)
Other versions
EP0706830A1 (fr
Inventor
Piero Battegazzore
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.)
Guala Dispensing SRL
Original Assignee
Guala Dispensing SRL
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 Guala Dispensing SRL filed Critical Guala Dispensing SRL
Priority to EP94830434A priority Critical patent/EP0706830B1/fr
Priority to DE69405106T priority patent/DE69405106T2/de
Priority to ES94830434T priority patent/ES2108410T3/es
Publication of EP0706830A1 publication Critical patent/EP0706830A1/fr
Application granted granted Critical
Publication of EP0706830B1 publication Critical patent/EP0706830B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1074—Springs located outside pump chambers
    • 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
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1077—Springs characterised by a particular shape or material
    • 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
    • B05B11/1087—Combination of liquid and air pumps
    • 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 present invention relates to an atomising spray device for liquids which is manually operable and uses air as the atomising fluid, comprising a container for the liquid to be sprayed, a tubular body associated with the liquid container and having a free end, a swirl chamber member with a delivery nozzle and vortex-forming means for causing fluid to swirl mounted in correspondence with the free end of the tubular body, a first duct for carrying liquid from the container, a second duct for conveying air from the outside, both of these ducts being housed, at least along part of their lengths, within the tubular body, as well as respective pump members arranged in the liquid duct and in the air duct, these pump members being manually operable at the same time.
  • a second swirl chamber is arranged around the outwardly-facing end of the delivery nozzle and, being supplied with air through a second duct, forms a swirling jet which collides with that of the liquid thereby greatly diminishing the size of the liquid droplets.
  • the air jet pressurised by a manually-operated pump, is conveyed into the vicinity of the nozzle and impinges on the jet of liquid which is coming out of this nozzle already partially atomised by the vortex-forming members. In this way the droplets of liquid are further broken down, thereby obtaining very fine atomisation.
  • the liquid and the air are pumped by respective pumps which can be operated simultaneously by means of a single control.
  • the object of the present invention is therefore to overcome problems encountered in prior art atomiser spray devices.
  • reference 1 indicates a container for liquid to be delivered which may be of various types such as, insecticide, air freshener or hair spray.
  • the container 1 is connected by means of a coupling 2 to a column 3 which is an integral part of a pumping assembly with two pump members, one for the liquid in the container 1 and one for air.
  • the column 3 is traversed longitudinally by a duct 4 which is connected by a connector 5 to a tube 6 which dips into the liquid in the container 1.
  • a cylindrical body 8 defines a transverse duct 7 which communicates with the duct 4 and which houses a movable piston 9, fitted with seal rings 10, which is securely fixed to a control grip 11 by means of a pin 12 so as to form a first pump member.
  • the grip 11 is movable relative to the column 3, to which it is parallel, and is guided between a face 13 of the container 1 and a face 14 of a shell cover 15 fixed to the column 3 by snap means such as those indicated 16 and 17.
  • a bellows member 18 is also fixed to the grip 11 and is connected to the column 3 by an annular stem 19.
  • the bellows member 18 constitutes the pump member for the air which is pressurised at each movement of the grip 11 and forced into a duct 20 formed in the body of the column 3.
  • the ducts 4 and 20 communicate through respective connectors 21 and 22 with respective further ducts 23 and 24 formed in a tubular body 25 connected to the column 3 by means of a hook 26 and to the shell 15 by means of projections 27.
  • the connectors 5, 21 and 22 have one-way valves, not shown in detail as they are entirely conventional, which are required for the pump members to operate and for the fluids to be conveyed correctly.
  • a cap 29 is fitted to the free end portion 28 of the tubular body 25 by snap engagement means 30, 31.
  • a channel 34 is formed which puts the outlet of the air duct 24 into communication with a mixing chamber 35 where the air flow is mixed with a flow of liquid arriving from the duct 23.
  • the transverse dimensions of the chamber 35 are greater than the diameter of the liquid duct 23.
  • the cap 29 has a tubular seat 36 housing a swirl-chamber insert 37 having a nozzle 38 and vortex-forming means, in themselves known, indicated 39.
  • the insert 37 is arranged adjacent the mixing chamber 35 so that this chamber is upstream of the delivery nozzle 38.
  • the tubular body is indicated 40, the liquid duct 41 and the air duct 42. It can be seen that the air duct 42 is coaxial with the liquid duct 41 which opens into a chamber 43 which communicates around its circumference directly with the outlet of the air duct 42.
  • the chamber 43 is defined at its opposite end from the outlet of the duct 41, by an end face 44 of a cylindrical appendage 45 projecting from a swirl-chamber insert 46.
  • the latter is provided, in conventional manner, with a delivery nozzle 47 and vortex-forming elements 48 and is housed directly inside the free end portion 49 of the tubular body 40.
  • the spray device is operated by repeated pressure on and release of the grip which causes the simultaneous operation of the liquid pump members, that is the piston 9 in the duct 7, and of the air pump members, that is the bellows 18.
  • the liquid thus drawn from the container 1 enters the duct 23, or the duct 41, in the quantity determined by the structure and dimensions of the members 7 and 9 which form the pump.

Landscapes

  • Nozzles (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Claims (6)

  1. Dispositif de pulvérisation par atomisation pouvant être actionné manuellement pour des liquides, qui utilise de l'air en tant que fluide d'atomisation, comportant un récipient (1) pour le liquide devant être pulvérisé, un corps tubulaire (25, 40) associé au récipient à liquide et ayant une extrémité libre (28, 49), un élément (37, 46) à chambre de tourbillonnement pourvu d'une buse (38, 47) d'émission et des moyens (39, 48) formant un tourbillon pour amener un fluide à tourbillonner, montés en correspondance avec l'extrémité libre du corps tubulaire, un premier conduit (23, 41) pour transporter un liquide depuis le récipient, un second conduit (24, 42) pour transporter de l'air depuis l'extérieur, ces deux conduits étant logés, au moins sur une partie de leur longueur, à l'intérieur du corps tubulaire (25, 40), et des éléments de pompe respectifs (7, 9 - 18) disposés dans le conduit de liquide et dans le conduit d'air, les éléments de pompe pouvant être actionnés simultanément à la main, caractérisé en ce que le corps tubulaire (25, 40) comprend une chambre (35, 43) de mélange d'air et de liquide en amont de l'élément (37, 46) à chambre de tourbillonnement et en ce que les conduits de liquide et d'air débouchent librement dans la chambre de mélange, les diamètres des conduits étant dans un rapport prédéterminé entre eux, en corrélation avec le rapport de mélange d'air et de liquide devant être établi dans la chambre (35, 40) de mélange.
  2. Dispositif de pulvérisation par atomisation selon la revendication 1, caractérisé en ce que le rapport du diamètre du conduit (23, 41) de liquide au diamètre du conduit (24, 42) d'air est compris entre 1/2 et 1/3.
  3. Dispositif de pulvérisation par atomisation selon les revendications 1 et 2, caractérisé en ce que les conduits de liquide et d'air s'étendent parallèlement l'un à l'autre et sont espacés transversalement à l'intérieur du corps tubulaire.
  4. Dispositif de pulvérisation par atomisation selon la revendication 3, caractérisé en ce que le conduit (23) de liquide est situé au-dessous du conduit (24) d'air dans la direction de la gravité naturelle.
  5. Dispositif de pulvérisation par atomisation selon les revendications 1 et 2, caractérisé en ce que les conduits pour le liquide (41) et l'air (42) sont coaxiaux, le conduit d'air entourant annulairement le conduit de liquide.
  6. Dispositif de pulvérisation par atomisation selon les revendications 1 à 5, caractérisé en ce que la chambre de mélange (35, 43) est disposée face à la sortie du conduit (23, 41) de liquide dans cette chambre, les dimensions transversales de cette chambre étant supérieures au diamètre du conduit de liquide, un passage (34) de raccordement étant prévu entre la chambre de mélange elle-même et le conduit d'air.
EP94830434A 1994-09-16 1994-09-16 Un dispositif de pulvérisation actionnable manuellement qui utilise l'air comme fluide d'atomisation Expired - Lifetime EP0706830B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP94830434A EP0706830B1 (fr) 1994-09-16 1994-09-16 Un dispositif de pulvérisation actionnable manuellement qui utilise l'air comme fluide d'atomisation
DE69405106T DE69405106T2 (de) 1994-09-16 1994-09-16 Handbetätigte Sprühvorrichtung, welche Luft als Sprühmittel verwendet
ES94830434T ES2108410T3 (es) 1994-09-16 1994-09-16 Dispositivo pulverizador de atomizacion para liquidos, accionable manualmente y que usa aire como fluido de atomizacion.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP94830434A EP0706830B1 (fr) 1994-09-16 1994-09-16 Un dispositif de pulvérisation actionnable manuellement qui utilise l'air comme fluide d'atomisation

Publications (2)

Publication Number Publication Date
EP0706830A1 EP0706830A1 (fr) 1996-04-17
EP0706830B1 true EP0706830B1 (fr) 1997-08-20

Family

ID=8218522

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94830434A Expired - Lifetime EP0706830B1 (fr) 1994-09-16 1994-09-16 Un dispositif de pulvérisation actionnable manuellement qui utilise l'air comme fluide d'atomisation

Country Status (3)

Country Link
EP (1) EP0706830B1 (fr)
DE (1) DE69405106T2 (fr)
ES (1) ES2108410T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10047668A1 (de) * 2000-09-26 2002-04-11 Aromata Internat Duftleuchten Beduftungsgerät
US7967171B2 (en) 2004-10-11 2011-06-28 Meadwestvaco Calmar, Inc. Air foaming pump trigger sprayer
GB0515592D0 (en) 2005-07-28 2005-09-07 Glaxo Group Ltd Nozzle for a nasal inhaler
US9327253B2 (en) 2010-06-15 2016-05-03 Brightwell Dispensers Limited Foam pump

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL132938C (fr) * 1963-05-03
US4122979A (en) * 1976-06-01 1978-10-31 Laauwe Robert H Squeeze bottle containing a liquid product and operative whether upright or inverted
DE4102632A1 (de) * 1991-01-30 1992-08-06 Pfeiffer Erich Gmbh & Co Kg Austragduese fuer medien
CH680582A5 (fr) * 1991-04-23 1992-09-30 Supermatic Kunststoff Ag

Also Published As

Publication number Publication date
DE69405106T2 (de) 1998-01-29
DE69405106D1 (de) 1997-09-25
EP0706830A1 (fr) 1996-04-17
ES2108410T3 (es) 1997-12-16

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