EP3615224B1 - Kopfteil für die ausgabe eines flüssigprodukts - Google Patents

Kopfteil für die ausgabe eines flüssigprodukts Download PDF

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Publication number
EP3615224B1
EP3615224B1 EP18726519.4A EP18726519A EP3615224B1 EP 3615224 B1 EP3615224 B1 EP 3615224B1 EP 18726519 A EP18726519 A EP 18726519A EP 3615224 B1 EP3615224 B1 EP 3615224B1
Authority
EP
European Patent Office
Prior art keywords
filter
spray
dispenser head
suction chamber
nozzle
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.)
Active
Application number
EP18726519.4A
Other languages
English (en)
French (fr)
Other versions
EP3615224A1 (de
Inventor
stéphane Beranger
Frédéric Duquet
Julien SAGLIET
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.)
Aptar France SAS
Original Assignee
Aptar France SAS
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
Priority claimed from FR1753689A external-priority patent/FR3065653B1/fr
Priority claimed from FR1754003A external-priority patent/FR3065890B1/fr
Application filed by Aptar France SAS filed Critical Aptar France SAS
Publication of EP3615224A1 publication Critical patent/EP3615224A1/de
Application granted granted Critical
Publication of EP3615224B1 publication Critical patent/EP3615224B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • 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
    • B05B11/1097—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 with means for sucking back the liquid or other fluent material in the nozzle after a dispensing stroke
    • 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
    • B05B11/1001—Piston pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/40—Filters located upstream of the spraying outlets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/52—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles
    • B05B15/531—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles using backflow

Definitions

  • the present invention relates to a fluid product dispensing head intended to be associated with a dispensing member such as a pump or a valve.
  • the head can be in the form of a pusher and define a bearing surface on which the user can exert a pushing force to actuate the dispensing member.
  • the dispensing head can be integrated into, or mounted on, the dispensing member. This type of fluid product dispenser head is frequently used in the fields of perfumery, cosmetics or even pharmacy.
  • a nozzle comprising a spray wall pierced with several spray holes of substantially or perfectly identical diameter, of the order of 1 to 100 ⁇ m. Such a spray wall would generate a spray whose droplet size is relatively homogeneous.
  • WO2015194962 describes several embodiments of a nozzle comprising a spray wall pierced with several holes spray, as well as one or more filters arranged upstream of the spray wall.
  • the document FR2915470 discloses a push button and dispenser comprising a front wall for forming an aerosol composed of individual fine droplets.
  • the clogging or clogging of the nozzle was due to fine particles in suspension in the fluid or coming from the manufacture, assembly or operation of the distribution member (pump). It was only after several series of tests that the cause of this clogging or clogging of the nozzle was identified: it would seem to come from the drying out or the strong increase in viscosity of the fluid product at the level of the nozzle itself. Thus, solid or pasty residues would form in the nozzle and clog the spray wall and / or the filter (s), which would lead to the deterioration, or even the stopping, of the spraying.
  • the present invention proposes that the head comprises a suction chamber having a variable volume, so that the volume of the suction chamber decreases when pressure is exerted on the bearing surface and increases when the pressure is released on the bearing surface.
  • the suction chamber generates a suction or “sniffing” which makes it possible to remove the fluid product from the spray wall and / or from the filter (s) by making the fluid product rise in the suction chamber. It suffices for this to adapt the variation in volume of the suction chamber to the volume defined by the spray wall alone or from the spray wall to the most upstream filter.
  • the spray holes have a diameter of the order of 1 to 100 ⁇ m, advantageously of the order of 5 to 30 ⁇ m, and preferably of the order of 10 to 20 ⁇ m.
  • the distribution head further comprises at least one filter upstream of the spray wall.
  • the filter may be in the form of a filter plate comprising filter holes which are more numerous than the spray holes, but having a smaller diameter than those of the spray holes.
  • the filter can also be in the form of a filter block forming an array of open cavities.
  • a single nozzle can include both one or more filter plate (s) and one or more filter block (s).
  • the variation in volume of the suction chamber is advantageously greater than the cumulative volume of the spray holes, when there is no filter. Otherwise, an intermediate space is formed between the spray wall and the filter, the variation in volume of the suction chamber then advantageously being greater than the cumulative volume of the spray holes, of the intermediate space and of the filter holes and / or the network of open cavities.
  • the suction chamber may comprise a piston or an elastically deformable wall.
  • the spirit of the invention lies in the fact of emptying the multiple-hole nozzle of the fluid product which it contains after the spraying phase.
  • the suction chamber integrated into the pusher creates a vacuum just after the spraying phase which has the effect of sucking the fluid product contained in the nozzle and storing it in the suction chamber until the next spraying phase.
  • the nozzle is assuredly empty of any fluid product, so that there is no longer any risk of clogging or clogging by drying, formation of solid residues or increase in viscosity.
  • the dispensing head T comprises three essential constituent parts, namely a head body 1 and a nozzle 2 and a piston 3. These parts can be produced by injection molding of plastic material.
  • the head body 1 is preferably made in one piece: it can however be made from several parts assembled together.
  • the head body 1 comprises a substantially cylindrical peripheral skirt 10 which is closed at its upper end by a plate 16.
  • the head body 1 internally defines an inlet well 11 which is open at the bottom and closed at its upper end by the plate 16.
  • the head body 1 also defines a supply duct 13 which connects the inlet well 11 to a mounting housing 12, as can be seen in the figures. figures 1 and 3 .
  • the axial mounting housing 12 is generally cylindrical in configuration, thereby defining an inner wall which is substantially cylindrical.
  • the supply duct 13 opens into the mounting housing 2 in a centered manner.
  • the internal wall of the mounting housing 12 has hooking profiles allowing better maintenance of the nozzle 2.
  • the head body 1 also defines a sliding barrel 14 which extends downwards in a concentric manner. inlet well 11. This sliding barrel is internally cylindrical and has a retaining profile on its outer wall, for example in the form of a small shoulder towards the outside.
  • the head body 1 can be engaged in a covering capsule 4 comprising an upper bearing surface 41 for a finger and a lateral envelope 42 forming a lateral opening 43 for the passage of the nozzle 2.
  • a covering capsule 4 comprising an upper bearing surface 41 for a finger and a lateral envelope 42 forming a lateral opening 43 for the passage of the nozzle 2.
  • the bearing surface is formed by the plate 16 of the head body 1.
  • the nozzle 2 has a substantially conventional overall configuration in the form of a cup which is open at one end and closed at its opposite end by a spray wall D, advantageously in the form of a small plate, at the level of which are formed several holes or spray orifices DO.
  • the nozzle 2 comprises a nozzle body 20 of substantially cylindrical overall shape which preferably has an axial symmetry of revolution. In other words, the nozzle 2 does not need to be angularly oriented before it is presented in front of the entrance to the axial mounting housing 12.
  • the nozzle body 20 forms an external mounting wall 21 which is advantageously provided with hooking reliefs able to cooperate with the hooking profiles of the mounting housing 12.
  • the nozzle 2 can be engaged axially without particular orientation in the axial mounting housing 12.
  • the nozzle body 20 internally forms a chamber delimited by an internal wall 23 forming several steps of decreasing diameters.
  • the nozzle body 20 forms a planar annular land 25 defining a central opening 26.
  • the spray wall D is integral with the nozzle body 20, advantageously at the level of the central opening 26.
  • the spray wall D is fixed to the nozzle body 20 by any means, such as overmolding, bi-injection, one-piece mono-material molding, snap-fitting, crimping, expansion, press-fitting, etc.
  • the spray wall D can be a one-piece mono-material plate, an assembly of several parts or else a multilayer product, for example a laminate. It can be made of metal, plastic, ceramic, glass or a combination thereof. More generally, any material capable of being pierced with small holes or orifices can be used.
  • the thickness of the spray wall D, at the level where the holes DO are formed, is of the order of 1 to 100 ⁇ m.
  • the number of holes DO is of the order of 20 to 500.
  • the diameter of the spray wall D, at the level where the holes DO are formed is of the order of 0.5 to 5 mm.
  • the holes DO are drilled in the spray wall D when it is already integral with the body of the sprayer. nozzle 20.
  • the nozzle body 20 can be used as a device for manipulating the spray wall D for its drilling operation, which can for example be carried out by laser.
  • the spray wall D is a very small part, and therefore difficult to handle.
  • the drilling of the holes DO with the spray wall D pre-assembled on the nozzle body 20 is a method which can be implemented regardless of the size of the holes DO, i.e. regardless of the size of the holes. makes that the distributor head incorporates a suction chamber.
  • the nozzle 2 also comprises two filters F1 and F2 arranged upstream of the spray wall D.
  • the filter F1 is mounted on a step of the internal wall 23 behind the spray wall D by defining between them a first intermediate space E1.
  • the filter F1 is a plate substantially similar to the spray wall D with filter holes FO which are advantageously more numerous than the spray holes DO, but which advantageously have a smaller diameter than those of the spray holes DO. It can also be noted that the diameter of the filter plate F1 is greater than that of the spray wall D. Its thickness can be substantially the same as that of the spray wall D, or even slightly greater.
  • the filter F2 is also mounted on a step of the internal wall 23 upstream of the filter F1 by defining between them a second intermediate space E2.
  • the filter F2 is in the form of a block of porous material, advantageously rigid, such as Porex ®, which forms a network of open cavities, the average pore size of which may be of the order of 7 to 100 microns. .
  • the fluid product delivered by the pump P flows through the inlet well 11, the supply duct 13, passes through the filter F2, fills the second intermediate space E2, passes through the filter F1, fills the first intermediate space E1, and finally passes through the spray wall D to the outlet from which it is sprayed into fine droplets.
  • the figure 3c represents the volume of the fluid in the filter F1, namely VF1, the first intermediate space E1, namely VE1, and the spray wall D, namely VD.
  • the figure 4a shows a second embodiment for a nozzle 2 ', which can be implemented in the distributor head T instead of the nozzle 2.
  • This nozzle 2' comprises a spray wall D 'on which the nozzle body 20' has been overmolded.
  • the spray wall D ' also defines a series of small spray holes DO' of the order of 1 to 100 microns in diameter.
  • the nozzle 2 ′ comprises only a single filter F2 ′ which may be substantially identical to the filter F2, that is to say formed by a part or a block of porous material, advantageously rigid, such as Porex®, which forms a network of open cavities, the average pore size of which may be of the order of 7 to 100 microns.
  • the filter F2 ′ and the spray wall D define between them an intermediate space E1 ′.
  • the figure 4b is similar to figure 5c and shows the volume of the fluid in the intermediate space E1 ', namely VE1', and the spray wall D ', namely VD'.
  • the distributor head T incorporates a suction chamber 30 which is formed by the cooperation of the head body 1 with the piston 3.
  • a spring 33 which may be an elastically deformable ring.
  • the piston 3 is therefore biased away from the inlet well 11 while remaining integral with the sliding barrel 14 by virtue of the retaining profile of the barrel 14 which cooperates with a ring 32 of the piston 3 which is engaged around the barrel 14.
  • the piston 3 is at rest and on the figure 2b , the piston 3 is moved as far as possible towards the inlet well 11 by compressing the spring 33.
  • the piston also comprises a sleeve 35 which is engaged in the sliding barrel 14 by being connected at its lower end to the ring 32 and forming at its free upper end, a piston lip 34 which in leaktight sliding contact with the cylindrical inner wall of the sliding barrel 14.
  • the sleeve 35 also defines a central passage 31.
  • the sleeve 35 also defines a central passage 31.
  • piston 3 and the head body 1 define between them the suction chamber 30, the volume of which varies with the sliding movement of the piston 3.
  • the sleeve 35 is connected to the free end of an actuating rod P2 of a distribution member P, such as a pump or a valve.
  • the actuating rod P2 can be moved back and forth along the Y axis against an internal spring (not shown).
  • the stiffness of the spring 33 of the piston 3 is less than that of the internal spring of the distribution member P.
  • the actuating rod P2 is hollow so as to define a delivery duct in communication with a metering chamber. the distribution member P.
  • the central passage 31 of the piston 3 is located directly downstream of the outlet of the actuating rod P2, so that the fluid product delivered by the distribution member P passes through the suction chamber 30 to reach the entrance shaft 11.
  • the suction chamber 30 When the distributor head T is at rest ( figure 2a ), the suction chamber 30 has a maximum volume. When a user presses on the bearing surface of the head T, the suction chamber 30 will decrease in volume until it reaches a minimum ( figure 2b ). Then, the actuating rod P2 will be pushed in so as to distribute the fluid product through the head T and its nozzle 2 where it will be sprayed. As soon as the user releases his pressure on the bearing surface of the head T, the actuating rod P2 returns to its rest position under the action of the internal spring. The piston 3 will also move to also regain its rest position ( figure 2a ). In doing so, a vacuum is created in the suction chamber, due to its increase in volume.
  • This depression will generate a suction force at the level of the nozzle 2 which will move the fluid that it contains towards the suction chamber 30. It is thus possible to empty the spray holes DO, the filter (s) F1, F2, F2 'and the intermediate space (s) E1, E2, E1'.
  • the variation in volume of the suction chamber 30 can be adapted to the design of the nozzle to remove a sufficient volume of fluid. In nozzle 1, it is for example possible to evacuate the spray holes DO, the first space intermediate E1 and the filter holes FO, but not the second intermediate space E2, nor the filter F2. Thus, one would evacuate only the volume represented on the figure 3c .
  • a flexible dome 3 ' is mounted on the head body 1' in place of the plate 16 of the first embodiment.
  • This flexible dome 3 ′ comprises an anchoring ring 32 ′ which is mounted on a fixing flange 14 ′ of the head body 1 ′.
  • the covering cap 4 ′ forms a re-entrant flap 41 ′ which supports the anchoring ring 32 ′ on the head body 1 ′.
  • the anchoring ring 32 ′ is mounted in a fixed and sealed manner on the head body 1 ′.
  • the flexible dome 3 ' also comprises an elastically deformable actuating wall 34' which forms a bearing surface for a user's finger.
  • the suction chamber 30 ' is then formed between the head body 1' and this elastically deformable actuating wall 34 '. It is supplied with fluid by the inlet well 11 'and the outlet of the chamber is formed by the supply duct 13' which is connected to the nozzle 2.
  • nozzle 2 'of the figures 4a and 4b can be mounted instead of the nozzle 2 in the second embodiment of the suction chamber 30 '.
  • the present invention is thus based on the combination of a suction chamber with a nozzle with multiple micro-holes (20 to 500 holes of 1 to 100 microns), advantageously equipped with one or more filters.

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

Claims (10)

  1. Fluidprodukt-Verteilungskopf (T), der dazu vorgesehen ist, an einem Verteilungsorgan (P) wie etwa einer Pumpe montiert zu werden, und eine Abstützoberfläche (16; 41; 34'), um das Verteilungsorgan (P) zu betätigen, sowie eine Zerstäubungswand (D), die von einem Raster von Zerstäubungslöchern (DO) durchsetzt ist, durch die sich das Fluidprodukt unter Druck bewegt, so dass es in feine Tröpfchen zerstäubt wird, umfasst,
    dadurch gekennzeichnet, dass er außerdem eine Ansaugkammer (30; 30') umfasst, die ein veränderliches Volumen besitzt, derart, dass das Volumen der Ansaugkammer (30; 30') abnimmt, wenn auf die Abstützoberfläche (16; 41; 34') ein Druck ausgeübt wird, und zunimmt, wenn der Druck auf die Abstützoberfläche (16; 41; 34') entlastet wird.
  2. Verteilungskopf nach Anspruch 1, wobei die Zerstäubungslöcher (DO) einen Durchmesser in der Größenordnung von 1 bis 100 µm aufweisen.
  3. Verteilungskopf nach Anspruch 1 oder 2, wobei die Zerstäubungslöcher (DO) einen Durchmesser in der Größenordnung von 5 bis 30 µm und vorzugsweise in der Größenordnung von 10 bis 20 µm aufweisen.
  4. Verteilungskopf nach einem der vorhergehenden Ansprüche, der außerdem wenigstens einen Filter (F1, F2; F2') stromaufseitig der Zerstäubungswand (D) umfasst.
  5. Verteilungskopf nach Anspruch 4, wobei der Filter eine Filterplatte (F1) ist, die Filterlöcher (FO) aufweist, deren Anzahl größer als jene der Zerstäubungslöcher (DO) ist, die jedoch einen Durchmesser haben, der kleiner als jener der Zerstäubungslöcher (DO) ist.
  6. Verteilungskopf nach Anspruch 4 oder 5, wobei der Filter ein Filterblock (F2; F2') ist, der ein Raster offener Hohlräume bildet.
  7. Verteilungskopf nach einem der vorhergehenden Ansprüche, wobei die Änderung des Volumens der Ansaugkammer (30; 30') größer als das in den Zerstäubungslöchern (DO) kumulierte Volumen ist.
  8. Verteilungskopf nach einem der Ansprüche 4 bis 6, wobei ein Zwischenraum (E1; E1') zwischen der Zerstäubungswand (26) und dem Filter (F1; F2') gebildet ist, wobei die Änderung des Volumens der Ansaugkammer (30; 30') größer als das kumulierte Volumen der Zerstäubungslöcher (DO), des Zwischenraums (E1; E1') und der Filterlöcher (FO) und/oder des Rasters offener Hohlräume ist.
  9. Verteilungskopf nach einem der vorhergehenden Ansprüche, wobei die Ansaugkammer (30; 30') einen Kolben (3) und eine nachgiebige Haube (3') umfasst.
  10. Verteilungskopf nach einem der vorhergehenden Ansprüche, der die Form eines Drückers besitzt, der Folgendes umfasst:
    - eine Verbindungsmuffe (35; 15), die dazu vorgesehen ist, mit einem Ausgang eines Verteilungsorgans (P) wie etwa einer Pumpe verbunden zu werden,
    - einen Eingangsschacht (11; 11') in der Verlängerung der Verbindungsmuffe (35; 15),
    - einen axialen Montageaufnahmeraum (12; 12'),
    - eine Versorgungsleitung (13; 13'), die den Eingangsschacht (11; 11') mit dem axialen Montageaufnahmeraum (12; 12') verbindet,
    - ein Mundstück (2; 2'), das mit dem axialen Montageaufnahmeraum (12; 12') in Eingriff ist, wobei die Zerstäubungswand (D) mit dem Mundstück (2; 2') fest verbunden ist,
    wobei die Ansaugkammer (30; 30') zwischen der Verbindungsmuffe (35) und dem Eingangsschacht (11) oder zwischen dem Eingangsschacht (11') und der Versorgungsleitung (13') gebildet ist.
EP18726519.4A 2017-04-27 2018-04-24 Kopfteil für die ausgabe eines flüssigprodukts Active EP3615224B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1753689A FR3065653B1 (fr) 2017-04-27 2017-04-27 Tete de distribution de produit fluide.
FR1754003A FR3065890B1 (fr) 2017-05-05 2017-05-05 Module de distribution de produit fluide.
PCT/FR2018/051019 WO2018197798A1 (fr) 2017-04-27 2018-04-24 Tete de distribution de produit fluide.

Publications (2)

Publication Number Publication Date
EP3615224A1 EP3615224A1 (de) 2020-03-04
EP3615224B1 true EP3615224B1 (de) 2021-06-09

Family

ID=62223052

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18726519.4A Active EP3615224B1 (de) 2017-04-27 2018-04-24 Kopfteil für die ausgabe eines flüssigprodukts

Country Status (6)

Country Link
US (1) US11278925B2 (de)
EP (1) EP3615224B1 (de)
CN (1) CN110603105B (de)
BR (1) BR112019021994B1 (de)
ES (1) ES2879863T3 (de)
WO (1) WO2018197798A1 (de)

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5348189A (en) * 1991-04-10 1994-09-20 Bespak Plc Air purge pump dispenser
US5664703A (en) * 1994-02-28 1997-09-09 The Procter & Gamble Company Pump device with collapsible pump chamber having supply container venting system and integral shipping seal
US5492275A (en) * 1994-05-16 1996-02-20 Par-Way Group Hand pump sprayer with rotating nozzle and system for dispensing viscous liquids
JPH09110064A (ja) * 1995-10-13 1997-04-28 Mandamu:Kk 目づまり及び液ダレ防止機能を有するポンプボタン並びに該ポンプボタンを有する化粧料
FR2779129B1 (fr) * 1998-05-26 2000-08-18 Sofab Diffuseur de produits liquides sous forme d'aerosols
US6536685B2 (en) * 2001-03-16 2003-03-25 Unilever Home And Personal Care Usa, Division Of Conopco, Inc. Foamer
FR2903328B1 (fr) * 2006-07-10 2008-12-05 Rexam Dispensing Systems Sas Buse de pulverisation, dispositif de pulverisation et utilisation de ce dispositif.
FR2915470B1 (fr) 2007-04-24 2011-06-10 Rexam Dispensing Sys Bouton poussoir et distributeur comprenant un tel bouton poussoir.
US7726517B2 (en) 2007-06-27 2010-06-01 The Clorox Company Liquid draw-back system for a dispensing package
GB0800709D0 (en) 2008-01-16 2008-02-20 Dunne Stephen T Double jet impinging nozzle
ITRM20080184A1 (it) * 2008-04-08 2009-10-09 Emsar Spa Testa di erogazione per dispensatori di prodotti liquidi
US8104650B2 (en) * 2008-06-06 2012-01-31 Pibed Ltd. Anti drip device for liquid dispensers
GB2463716A (en) * 2008-09-24 2010-03-31 Robinson Plc A dispensing cap having an expansion chamber to contain residual product
JP5971532B2 (ja) * 2012-02-21 2016-08-17 ノズルネットワーク株式会社 液体霧化装置
US10632265B2 (en) * 2014-06-20 2020-04-28 Medspray B.V. Aerosol or spray device, spray nozzle unit and method of manufacturing the same

Also Published As

Publication number Publication date
US20200114382A1 (en) 2020-04-16
EP3615224A1 (de) 2020-03-04
BR112019021994B1 (pt) 2023-01-31
BR112019021994A2 (pt) 2020-05-05
ES2879863T3 (es) 2021-11-23
CN110603105B (zh) 2022-01-04
WO2018197798A1 (fr) 2018-11-01
US11278925B2 (en) 2022-03-22
CN110603105A (zh) 2019-12-20

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