EP0217744B1 - Dispositif de pulvérisation pour une réserve compressible - Google Patents

Dispositif de pulvérisation pour une réserve compressible Download PDF

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Publication number
EP0217744B1
EP0217744B1 EP86810380A EP86810380A EP0217744B1 EP 0217744 B1 EP0217744 B1 EP 0217744B1 EP 86810380 A EP86810380 A EP 86810380A EP 86810380 A EP86810380 A EP 86810380A EP 0217744 B1 EP0217744 B1 EP 0217744B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
liquid
spray device
component
liquid 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.)
Expired
Application number
EP86810380A
Other languages
German (de)
English (en)
Other versions
EP0217744A1 (fr
Inventor
George Edgar Callahan
Harald Koch
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT86810380T priority Critical patent/ATE47334T1/de
Publication of EP0217744A1 publication Critical patent/EP0217744A1/fr
Application granted granted Critical
Publication of EP0217744B1 publication Critical patent/EP0217744B1/fr
Expired 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
    • B05B11/0005—Components or details
    • B05B11/0027—Means for neutralising the actuation of the sprayer ; Means for preventing access to the sprayer actuation means
    • B05B11/0029—Valves not actuated by pressure
    • 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
    • B05B11/04—Deformable containers producing the flow, e.g. squeeze bottles
    • B05B11/042—Deformable containers producing the flow, e.g. squeeze bottles the spray being effected by a gas or vapour flow in the nozzle, spray head, outlet or dip tube
    • B05B11/043—Deformable containers producing the flow, e.g. squeeze bottles the spray being effected by a gas or vapour flow in the nozzle, spray head, outlet or dip tube designed for spraying a 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
    • B05B7/10—Spray pistols; Apparatus for discharge producing a swirling discharge
    • 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
    • B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
    • B05B7/1209—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means for each liquid or other fluent material being manual and interdependent
    • 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
    • B05B11/0005—Components or details
    • B05B11/0027—Means for neutralising the actuation of the sprayer ; Means for preventing access to the sprayer actuation means
    • B05B11/0032—Manually actuated means located downstream the discharge nozzle for closing or covering it, e.g. shutters

Definitions

  • the invention relates to a spray device according to the preamble of claim 1.
  • a spray device according to the preamble of claim 1.
  • Such a device is known from DE-B 1 059 363.
  • Spray devices for placing on a compressible container have been known and used for a long time. today they are often attached to disposable plastic containers and thrown away together with the container after the contents of the container have been used up.
  • the best fine atomizers in themselves would be the double-piston aerosol pumps with a spring-loaded valve, which only releases the liquid when the excess pressure exceeds about 5 bar. With larger delivery quantities of more than 0.2 ml per stroke, the aerosol is noticeably coarser, because the pressure required would otherwise make manual operation more difficult.
  • Piston pumps are relatively expensive because they have to be manufactured from several moving parts.
  • the atomizers, in which the pressure is applied by compressing the container, can therefore be significantly simpler in construction.
  • DE-B 1 059 363 shows an atomizer head for plastic bottles, in which a tube extension serving as a liquid nozzle projects into a mixing chamber. The air enters the mixing chamber through bores and the liquid / air mixture leaves the mixing chamber through a spray nozzle arranged coaxially with the pipe socket.
  • nozzles are only released when the internal pressure has reached a certain value.
  • mixing also takes place in the case of turbulent flow.
  • US Pat. No. 3,392,886 discloses a spray device with a nozzle head arranged transversely to the container axis, in which the liquid emerges in the same plane as the air, which is accelerated via longitudinal slots on the outside of the liquid nozzle.
  • the purpose of the invention is to create a spray device without moving parts, which, with the low and irregular overpressures of the compressible plastic bottle, has the performance characteristics of the pump atomizers mentioned above. With the smaller delivery quantities, it should work drop-free and generate an aerosol that is not inferior in fineness, uniformity and quantity to that of the complicated and expensive double-piston pumps. On the other hand, it should enable dispensing quantities of up to 1 ml per stroke, but - as is the case with single-piston pumps - with less fine atomization.
  • the spray device should be easy to manufacture in the form of a reclosable bottle cap. This object is achieved by a spray device which has the features in the characterizing part of claim 1.
  • This arrangement allows the separate flow paths of both media to be optimally designed, so that a substantial part of the kinetic energy contained in the faster air flow is transferred to the liquid.
  • the application range of the device is improved in that the annular chamber is provided with a tangential inlet channel.
  • the inlet channels are advantageously arranged so that the same direction of rotation of the liquid or air flow is achieved. This increases the radial velocity component of the mixture, which leads to an expansion of the beam angle.
  • the aerosol is distributed more evenly over a larger area.
  • annular chamber and the mixture nozzle are assigned to an air-guiding component and the swirl chamber and the liquid nozzle are assigned to a fluid-guiding component, and if these components fi coaxially one behind the other in a holding part are adjustable.
  • These components can be inexpensively manufactured, for example, from plastic material and assembled in the simplest way.
  • the performance characteristics of the spraying device can be adapted to the respective intended use.
  • the distance between the components arranged coaxially in the pot-shaped holding part can be changed by spacing elements, different performance characteristics of the spray device can be achieved with the same components.
  • the components arranged in the holding part are rotationally symmetrical and are rotatably mounted about their axis in such a way that, together with the side wall of the pot-shaped holding part, they form a shut-off device for interrupting the inlet channels.
  • the container can be closed by simply rotating the component group.
  • One of the components is advantageously provided with a turning handle.
  • the holding part is advantageously formed in one piece with a closure device for the container mouth, the spray axis extending approximately transversely to the axis of the container for practical reasons.
  • FIG. I shows a spraying device which consists of three components which can be produced, for example, from plastic material using the injection molding process.
  • the liquid-carrying component 23 with the liquid nozzle and the air-carrying component 29 with the mixture nozzle 4 are essentially designed as rotationally symmetrical components and fixed in the holding part 12, which is approximately cup-shaped.
  • the holding part 12 is provided with the closure device 19, which can be designed, for example, as a screw cap with a screw thread 25. This screw cap can be screwed onto a standard plastic bottle.
  • the riser pipe 2 is plugged onto a connecting piece 27 which opens into the swirl chamber 9 of the liquid-carrying component 23 via an inlet channel 10.
  • the inlet channel 10 leads tangentially into the swirl chamber 9, as can be seen in particular from FIG. 2.
  • the inlet opening 24 of the inlet channel 10 is visible in FIG.
  • the liquid nozzle I has an approximately conical inner wall section 5.
  • the liquid is supplied to the liquid nozzle I via the riser pipe 2, the nozzle 27, the inlet channel 10 and the swirl chamber 9.
  • the outer wall 6 of the liquid nozzle I is also conical, which has an influence on the flow parameter of the air, as will be shown below.
  • the mixing nozzle 4 also has a conical inner wall section 5 '.
  • the liquid-carrying component 23 directly adjoins the air-carrying component 29 and, together with the outer wall 6 of the liquid nozzle, forms an annular chamber 3 which surrounds the liquid nozzle I.
  • An inlet channel II leads into the annular chamber 3 and is connected via an air opening 30 to the air space of the container lying above the liquid. As FIG. 3 shows, in the exemplary embodiment shown the inlet channel 11 is guided radially into the annular chamber 3, the inlet opening 28 being still visible in FIG.
  • the liquid-carrying component 23 and the air-carrying component 29 are arranged on a common axis 20, which is also the spray axis.
  • the opening 7 of the liquid nozzle is, however, arranged in the spray direction in front of the opening 8 for the mixture nozzle.
  • the liquid nozzle protrudes into the mixture nozzle 4 in such a way that a conical annular gap 34 is formed which leads from the annular chamber 3 into the mixture nozzle 4.
  • the liquid-carrying component 23 and the air-carrying component 29 can be fastened in the cup-shaped holding part 12, for example, by latching or by welding.
  • a hinged lid 31 with a film hinge 32 can be pivotally attached to the closure device 19.
  • a plug 22 is arranged on the hinged cover 31, which in the folded-up position penetrates into the opening 8 of the mixture nozzle and closes it.
  • a cap can also be used instead of the stopper.
  • Figure 4 shows an alternative embodiment in which the inlet channel 10 is divided into two separate channels 10 'and 10 ", which likewise lead tangentially to diametrically opposite inlet openings 24 and 24' on the swirl chamber 9.
  • Figure 5 shows an inlet channel II for the Air that also leads tangentially into the annular chamber 3 instead of radially.
  • the liquid nozzle I and the mixture nozzle 4 are designed and arranged similarly to the exemplary embodiment according to FIG. I.
  • the liquid-carrying component 23 consists of two components, namely the chamber part 14 and the nozzle part 35 like formed by the chamber part 14.
  • the holding part 12 is provided with an opening 18.
  • a rotary handle 17 protrudes through the opening 18 and is firmly connected to the chamber part 14. All components in the holding part are rotationally symmetrical and connected to one another to form a package. The whole package is rotatably mounted in the holding part.
  • the cross section of the inlet channels can also only be reduced, so that a smaller amount of liquid flows out.
  • the holding part I2 is made of an elastic plastic material, the package consisting of the chamber part, liquid nozzle and mixing nozzle can be bumped into the cup-shaped holding part against a holder shoulder 33.
  • a spacer element 15 is also visible in FIG. 6, which is arranged between the liquid-carrying component 23 and the air-carrying component 29 in order to enlarge the axial distance.
  • Such spacer elements above all facilitate the standardization of the components, so that, for example, the same components 23, 29 can be used for different atomization characteristics.
  • FIG. 1 and FIG. 6 which are shown approximately on the same scale 10: 1.
  • the liquid flow is significantly influenced by the configuration of the inlet channel 10, the inlet opening 24, the swirl chamber 9 and the inner wall part 5 of the liquid nozzle I.
  • the air flow is influenced by the configuration of the inlet duct 11 of the inlet opening 28, the annular chamber 3 and the annular gap 34, and the individual diameter ratios to one another. It is therefore necessary to compare FIGS. I and 6 with regard to these parts.
  • Figure I shows a spray device for the drop-free delivery of a relatively small amount of liquid in the form of a fine aerosol.
  • a plastic bottle with a volume of approx. 200 ml and a dispensing quantity of 0.1 to 0.15 ml per stroke would be common. This amount would have to be dispensed within about 0.25 seconds if the flow rate was sufficient for fine atomization.
  • an average excess pressure of 0.2 to 0.3 bar would be required during this time. The flow cross-sections of both media are therefore comparatively small.
  • the diameter of the swirl chamber 9 is relatively large in relation to the diameter of the opening 7 on the liquid nozzle i. This causes a steep pressure gradient between the inlet opening 24 and the opening 7, which accelerates the liquid flow on this route. At the same time, the amount of liquid or the yield per pressure surge is reduced by the relatively high counterpressure at the inlet opening 24.
  • the diameter of the annular chamber 3 is larger than the diameter of the opening 8 at the mixture nozzle 4.
  • the air flow in the annular chamber 3 is slowed down and the air pressure is increased, so that the hollow conical annular gap 34 is flowed about symmetrically.
  • the cone angle of the outer wall section 6 on the liquid nozzle 1 is equal to or smaller than that of the inner wall section 5 'on the mixture nozzle 4, so that the cross-sectional area of the annular gap 34 is continuously reduced in the exit direction. As a result, the air flow in the annular gap 34 is accelerated.
  • FIG. 6 shows a spray device for coarse atomization of approximately 1.2 ml of liquid per stroke.
  • bottle volumes of up to 500 ml are common.
  • the flow cross-sections are larger, the flow velocities lower and the average overpressure is only approx. 0.1 bar.
  • the diameter of the swirl chamber 9 in relation to the diameter at the opening 7 is reduced in comparison to FIG. I, since a high counterpressure at the inlet opening 24 would reduce the amount of liquid.
  • the statements made with reference to FIG. 1 also apply to the remaining dimensions in this exemplary embodiment.
  • the spraying device in the plane of the opening 7 at the liquid nozzle the two media meet at their own maximum speed. Because of the upstream vortex chamber 9, the liquid emerges from the opening 7 as a hollow-conical jet, which promotes the mixing of the media. Both media experience individually and then together a speed increase with a corresponding pressure drop until the opening 8 at the mixing nozzle 4 is reached. The further the opening 7 is set back in the exit direction, the greater the overpressure at the opening 7 of the liquid nozzle I. In this way If the flow paths are otherwise unchanged, the performance characteristics of the spray device can be changed by changing the nozzle position. It has already been pointed out that this is done particularly advantageously by spacer elements for manufacturing reasons. Of course, it is also possible, for example, to provide the components in the holding part 12 with a suitable thread, so that the distance between the two nozzles can be adjusted continuously by screwing them in to different depths.

Landscapes

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

Claims (14)

1. Dispositif de pulvérisation destiné à être monté sur un récipient compressible comportant une buse (1) de projection du liquide devant être pulvérisé, et un tube ascendant (2), qui pénètre à l'intérieur du récipient et aboutit à la buse (1) de projection de liquide, ainsi qu'une chambre annulaire (3) disposée autour de la buse de projection de liquide et reliée au volume d'air du récipient, situé au-dessus du liquide, et dans lequel la chambre annulaire (3) débouche dans une buse (4) de projection du mélange li- quide/air, disposée coaxialement par rapport à la buse (1) de projection de liquide, l'ouverture (7) de la buse de projection de liquide étant située dans un plan, qui est en retrait dans la direction de la sortie aboutissant à l'ouverture (8) de la buse (4) de projection du mélange, caractérisé en ce qu'en amont de la buse (1) de projection du liquide se trouve disposée une chambre à tourbillons (9), qui est reliée par l'intermédiaire d'un canal tangentiel d'admission (10) au tube ascendant (2), en ce que la buse (1) de projection du liquide et la buse (4) de projection du mélange possèdent un élément de paroi intérieur (5, 5') de forme approximativement conique, la chambre à tourbillons (9) et la chambre annulaire (3) possédant une forme rétrécie se raccordant directement à l'élément de paroi conique (5 ou 5'), qui lui est associé, en ce que la buse (1) de projection du liquide possède une paroi extérieure approximativement conique (6) et pénètre dans la buse (4) de projection du mélange de telle sorte que la chambre annulaire (3) débouche sous la forme d'un cône creux dans la buse de projection du mélange.
2. Dispositif de pulvérisation selon la revendication 1, caractérisé en ce que la chambre annulaire (3) comporte un canal tangentiel d'admission (11).
3. Dispositif de pulvérisation selon la revendication 1 ou 2, caractérisé en ce que la chambre annulaire (3) et la buse (4) de projection du mélange sont associées à un composant (29) guidant l'air.
4. Dispositif de pulvérisation selon la revendication 1 ou 2, caractérisé en ce que la chambre à tourbillons (9) et la buse (1) de projection du liquide sont associées à un composant (23) guidant le liquide.
5. Dispositif de pulvérisation selon les revendications 3 et 4, caractérisé en ce que le composant (23) guidant le liquide et le composant (29) guidant l'air peuvent être fixés l'un derrière l'autre, selon une disposition coaxiale, dans un élément de retenue (12).
6. Dispositif de pulvérisation selon la revendication 5, caractérisé en ce que le composant (23) guidant le liquide et/ou le composant (29) guidant l'air est formé d'au moins deux pièces constitutives.
7. Dispositif de pulvérisation selon l'une des revendications 5 ou 6, caractérisé en ce que le composant (23) guidant le liquide et/ou le composant (29) guidant l'air sont montés de manière à être interchangeables dans l'élément de retenue (12).
8. Dispositif de pulvérisation selon l'une des revendications 5 à 7, caractérisé en ce que la distance entre les composants (1, 4, 14) montés coaxiaux dans l'élément de retenue (12) peut être déterminée par des entretoises (15).
9. Dispositif de pulvérisation selon l'une des revendications 5 à 7, caractérisé en ce que la distance entre les composants (1, 4, 14) montés coaxiaux dans l'élément de retenue (12) peut être réglée d'une manière progressive à l'aide de filetages ménagés sur les composants.
10. Dispositif de pulvérisation selon l'une des revendications 5 à 9, caractérisé en ce que les composants (1, 4, 14) disposés dans l'élément de retenue (12) possèdent une forme cylindrique et sont montés de manière à pouvoir tourner en commun autour de leur axe, de telle façon à former, en association avec la paroi latérale (16) de l'élément de retenue, un organe d'arrêt servant à étrangler ou interrompre les canaux d'admission (10, 11).
11. Dispositif de pulvérisation selon la revendication 10, caractérisé en ce que l'un des composants disposés dans l'élément de retenue comporte une poignée tournante (17) servant à actionner l'organe d'arrêt.
12. Dispositif de pulvérisation selon l'une des revendications 5 à 11, caractérisé en ce que l'élément de retenue (12) est relié à un dispositif d'obturation (19) pour l'embouchure du récipient.
13. Dispositif de pulvérisation selon la revendication 12, caractérisé en ce que l'axe (20) de l'élément de retenue s'étend approximativement transversalement à l'axe (21) du récipient (19).
14. Dispositif de pulvérisation selon la revendication 12 ou 13, caractérisé en ce que l'ouverture (8) de la buse (4) de projection du mélange peut être fermée par un bouchon (22) fixé de manière à pouvoir basculer, ou au moyen d'un capuchon.
EP86810380A 1985-09-02 1986-08-25 Dispositif de pulvérisation pour une réserve compressible Expired EP0217744B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86810380T ATE47334T1 (de) 1985-09-02 1986-08-25 Spruehvorrichtung zum aufsetzen auf einen zusammenpressbaren behaelter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH376585 1985-09-02
CH3765/85 1985-09-02

Publications (2)

Publication Number Publication Date
EP0217744A1 EP0217744A1 (fr) 1987-04-08
EP0217744B1 true EP0217744B1 (fr) 1989-10-18

Family

ID=4263010

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86810380A Expired EP0217744B1 (fr) 1985-09-02 1986-08-25 Dispositif de pulvérisation pour une réserve compressible

Country Status (4)

Country Link
US (1) US5115981A (fr)
EP (1) EP0217744B1 (fr)
AT (1) ATE47334T1 (fr)
DE (2) DE8621135U1 (fr)

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Publication number Priority date Publication date Assignee Title
US4711378A (en) * 1986-03-24 1987-12-08 S. C. Johnson & Son, Inc. Spray cap assembly comprising a base unit and push/pull closure means
DE3710788A1 (de) * 1987-03-31 1988-11-10 Wolfgang Fuhrig Handdruckzerstaeuber
DE3722470A1 (de) * 1987-07-08 1989-01-19 Pfeiffer Erich Gmbh & Co Kg Handbetaetigbare austragvorrichtung fuer medien
SG45171A1 (en) * 1990-03-21 1998-01-16 Boehringer Ingelheim Int Atomising devices and methods
DE69117193T2 (de) * 1990-12-04 1996-06-27 Dmw (Technology) Ltd., Suffolk Düsenvorrichtung zum verhindern des rückflusses
IL100224A (en) * 1990-12-04 1994-10-21 Dmw Tech Ltd Spray nozzle
CH680582A5 (fr) * 1991-04-23 1992-09-30 Supermatic Kunststoff Ag
US5350116A (en) * 1993-03-01 1994-09-27 Bespak Plc Dispensing apparatus
DE4417486A1 (de) * 1994-05-19 1995-11-23 Pfeiffer Erich Gmbh & Co Kg Austragvorrichtung für Medien
US5954047A (en) * 1997-10-17 1999-09-21 Systemic Pulmonary Development, Ltd. Methods and apparatus for delivering aerosolized medication
IL133226A (en) * 1999-11-30 2004-08-31 Mamtirim Dan Vortex liquid-atomizer
ITRM20030055A1 (it) * 2003-02-10 2004-08-11 Emsar Spa Testa erogatrice a nebulizzazione per flacone deformabile elasticamente per schiacciamento.
AU2004281833B2 (en) * 2003-10-17 2010-07-01 Covidien Lp Surgical stapling device
GB0413164D0 (en) * 2004-06-12 2004-07-14 Ten Cate Plasticum Uk Ltd Dispensing apparatus
EP2107304A1 (fr) * 2008-04-01 2009-10-07 Siemens Aktiengesellschaft Buse de pulvérisation tourbillonnant destinée à la pulvérisation de carburant liquide et son procédé de fabrication, porte-glicleur pour un brûleur doté de la buse de pulvérisation rotative
US8517009B2 (en) 2008-07-13 2013-08-27 Map Pharmaceuticals, Inc. Methods and apparatus for delivering aerosolized medication
US9573147B1 (en) * 2016-04-15 2017-02-21 Kaer Biotherapeutics Corporation Aerosolizing nozzle and method of operating such aerosolizing nozzle
CN105788677A (zh) * 2016-05-06 2016-07-20 上海核工程研究设计院 一种用于核电站乏燃料池喷淋冷却的喷嘴

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GB187015A (en) * 1921-07-12 1922-10-12 Robert Findlay Hislop Improved liquid fuel burner
CH249364A (de) * 1946-03-28 1947-06-30 Ehrenzweig Max Vorrichtung zum Zerstäuben von Flüssigkeiten.
US2574865A (en) * 1947-06-17 1951-11-13 Edwards Miles Lowell Spray nozzle
US3392886A (en) * 1967-01-16 1968-07-16 Albert Valve for liquid containers
US3583602A (en) * 1969-04-03 1971-06-08 Lincoln J Gruber Dripless fluid spray apparatus
US4186882A (en) * 1977-12-08 1980-02-05 Harry Szczepanski Atomizing liquid dispenser
FR2411637A1 (fr) * 1977-12-15 1979-07-13 Aerosol Inventions Dev Tete de pulverisation pour recipient a parois souples
US4356941A (en) * 1980-05-19 1982-11-02 Republic Tool & Manufacturing Corporation Squeeze-type dispenser for powdered materials

Also Published As

Publication number Publication date
DE3666364D1 (en) 1989-11-23
EP0217744A1 (fr) 1987-04-08
ATE47334T1 (de) 1989-11-15
DE8621135U1 (de) 1987-01-29
US5115981A (en) 1992-05-26

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