EP0519967B1 - Tete d'applicateur pour substances - Google Patents

Tete d'applicateur pour substances Download PDF

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Publication number
EP0519967B1
EP0519967B1 EP91905785A EP91905785A EP0519967B1 EP 0519967 B1 EP0519967 B1 EP 0519967B1 EP 91905785 A EP91905785 A EP 91905785A EP 91905785 A EP91905785 A EP 91905785A EP 0519967 B1 EP0519967 B1 EP 0519967B1
Authority
EP
European Patent Office
Prior art keywords
chamber
medium
discharge head
calming
combining means
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
EP91905785A
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German (de)
English (en)
Other versions
EP0519967A1 (fr
Inventor
Karl-Heinz Fuchs
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 Radolfzell GmbH
Original Assignee
Erich Pfeiffer GmbH
Ing Erich Pfeiffer GmbH
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 Erich Pfeiffer GmbH, Ing Erich Pfeiffer GmbH filed Critical Erich Pfeiffer GmbH
Publication of EP0519967A1 publication Critical patent/EP0519967A1/fr
Application granted granted Critical
Publication of EP0519967B1 publication Critical patent/EP0519967B1/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
    • B05B7/0018—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 with devices for making foam
    • B05B7/0025—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 with devices for making foam with a compressed gas supply
    • B05B7/0031—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 with devices for making foam with a compressed gas supply with disturbing means promoting mixing, e.g. balls, crowns
    • 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
    • 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
    • B05B11/06—Gas or vapour producing the flow, e.g. from a compressible bulb or air pump
    • 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
    • B05B7/0441—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 with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber
    • B05B7/045—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 with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber the gas and liquid flows being parallel just upstream the mixing chamber

Definitions

  • the invention relates to a discharge head for media, which in particular should have means for precisely controlled flow influencing of at least one medium, in order to be able to convey this medium by hand-operated pumping within narrow tolerances of flow speed and / or volume per unit of time.
  • the discharge head should have means for bringing together at least two separately supplied or stored media, which can be different components of the same and / or different state of matter and interact chemically or physically with one another at the latest in the region of the discharge from an outlet opening, for example by mixing.
  • the media in particular a gaseous and a liquid medium, should preferably cooperate in such a way that foam with precisely determinable properties, e.g. a very stable, finely structured foam is created.
  • a manually operable discharge device can be provided, with which air and liquid are brought together and then pressed through a porous, permeable body.
  • the discharge device can e.g. be suitable for numerous applications, especially for easy-to-foam, flowable media.
  • a foaming gun has become known, in which compressed air from an annular nozzle surrounding a liquid nozzle enters a mixing chamber. It sucks in liquid from a container and mixes with it in the mixing chamber before it exits the mouth through foam screens.
  • the invention is further based on the object of providing a discharge head of the type mentioned, with which media which are relatively difficult to mix or foam can be brought together in such a way that a very precise structure of the mixing, preferably a particularly homogeneous mixing, is achieved can.
  • At least one medium before, in particular immediately before the flow stabilization, e.g. subject to that the flow rate is suddenly reduced.
  • at least one medium can also be combined in a plurality of separate flow jets with at least one further medium, the medium expediently being exposed to the flow calming immediately before the combination as an undivided volume flow and then divided into the individual flow jets.
  • the media are only brought together immediately adjacent to or on at least one permeable sheet, such as a sieve, which is like a sponge can be wetted or soaked with the liquid medium at least on the inlet side such that its through openings are spanned with the liquid medium in the manner of liquid films.
  • a permeable sheet such as a sieve, which is like a sponge can be wetted or soaked with the liquid medium at least on the inlet side such that its through openings are spanned with the liquid medium in the manner of liquid films.
  • These openings can have a width of the order of about a hundredth of a millimeter or less, for example half a hundredth of a millimeter.
  • the sieves can be stamped parts from a flat sieve material made of plastic or the like. and be assembled into a multi-layer sieve pack.
  • Adjacent sieve bodies can lie flat against one another and / or a small gap distance approximately in the order of their thickness of e.g. have significantly less than one millimeter from one another, which enables cross flows and, if appropriate, transverse expansions of the foam that forms between the input side and the output side within the entire screen arrangement along the screen surface.
  • their sieve openings are offset from one another in such a way that opening separations of one sieve cross openings of the other sieve.
  • all of the entry openings associated with the merging for at least two media lie in a common surface or plane which is approximately perpendicular to the direction of flow and to which the sieve body adjoins at a constant distance or in a flat manner; the side of the sieve body facing away from it forms the outlet, so that flow paths which are several times longer and approximately rectified in parallel or in alignment are formed before and after the sieve body.
  • the gaseous medium is expediently supplied through at least one ring of relatively small openings, which surrounds a single or a plurality of substantially larger openings for supplying the liquid medium and is very close to the outer circumference of the central opening field formed thereby.
  • the chamber for merging which may have the screen body, is expediently wider.
  • the merging or the screen body advantageously is followed by a buffer for the liquid medium which is separate from the feed for the further medium and which has one or more relatively narrow supply openings in the region of its end remote from the screen body, so that a larger quantity is always present on the screen body of liquid medium as a template, from which the sieve body can suck up by capillary action and from which the medium does not automatically flow back through the supply openings.
  • the flow stabilization can follow one another in several stages, for example in axially one behind the other, coaxial and / or annular or widened chambers.
  • the annular chambers provided for the gaseous medium are connected to one another via continuously straight, parallel longitudinal channels, the width of which may be slightly larger and the number of which may be smaller than that of connecting channels which feed this medium directly to the merging or the sieve body.
  • the respective channel or the respective chamber expediently has a substantially constant cross section over the entire length.
  • the design according to the invention can ensure that the air enters the sieve chamber evenly distributed at relatively low pressure and low speed. Furthermore, the pressure and speed remain essentially constant even when the air is delivered by a pump, such as a thrust piston pump. This enables a very fine-grained and homogeneous foam to be produced.
  • the fine sieve body forms a sufficiently effective closure for the supply of liquid when not in use, since it is designed with regard to the flow properties or viscosity of the liquid medium so that this medium does not flow through the sieve body by weight alone. This provides effective leak protection.
  • the discharge head 1 is particularly suitable for use on a discharge device according to DE-OS 37 22 469, to which reference is made for further details and effects. It has a cap-shaped base body to be plugged onto the piston shaft of a fluid pump of the discharge device with a discharge nozzle 3 projecting approximately radially therefrom and forms a pressure handle with its cap end wall for pump actuation.
  • the discharge nozzle 3, together with the base body 2, receives a foaming device 4 for separate feeding, intermediate storage, flow calming and subsequent merging with the formation of foam from a liquid medium and air.
  • the discharge medium obtained emerges as a foam strand through an outlet opening 5 provided at the free end of the discharge nozzle 3.
  • the base body 2 is connected to the one Provide inside of its cap front wall freely protruding, socket-shaped plug-in connection 6.
  • a plug connection 7 which lies within the cap jacket and projects in the same direction, for an air pump 8 (not shown in detail), the cylinder of which is formed by the cap jacket and the one on the housing of the liquid Pump fixedly arranged, penetrated by the piston skirt sealed annular piston.
  • the connection 6 has an angled feed duct 9 leading to the rear end of the discharge nozzle 3.
  • a supply duct 11 of the air connection 7, which surrounds the connection 6 in a ring, likewise leads within the base body 2 into this rear end. Between the supply ducts 9, 11 and the outlet opening 5, only straight-line or parallel or symmetrical flow paths with changing inner widths are provided.
  • the discharge nozzle 3 is inserted as a self-contained assembly with its rear end in a corresponding flange area of the one-piece base body 2, at the connection 7 of which an outlet valve unit of the air pump 8 directly attached to the associated pump chamber can be fastened.
  • the outlet nozzle 3 or the foaming device 4 consists of three nested sleeve parts, namely two inner sleeve parts 12, 13 and an outer sleeve 14 forming the outlet opening 5.
  • the sleeve part 12 is used with a core 15 protruding beyond the rear end of the outer sleeve 14 and inside receiving fastening end 16, which has two sections 17, 18 which are offset in diameter from one another, for plug-in or snap connection to the flange part of the base body 2.
  • a subsequent, slightly expanded section 19 lies within one through the rear end of the outer sleeve 14 formed receiving sleeve 21, the constant inner circumference of which connects to an end channel via an annular shoulder.
  • the section 19 merges over an approximately flat annular shoulder into an end section 20 with a substantially reduced outside diameter, onto which the longer sleeve part 13 is attached.
  • the sleeve part 12 and the sleeve part 13 can form an assembly module with a constant outer diameter in the region of the section 19 and the sleeve part 13 and can be inserted with tension into the receiving sleeve 21.
  • the air supply duct 11 adjoins the rear end of a chamber 24 which lies in front of the annular gap for the supply ducts 22 and surrounds it in an annular manner and which is bounded on its front end face by the rear end of the section 18 and on the inner circumference by the section 17. From the front end face of the chamber 24 there is a ring of connecting channels 25 which are arranged uniformly about the central axis 10 and extend as far as the front annular shoulder of the section 19 and lie completely in the bore within the jacket of the sleeve part 12.
  • annular chamber 26 which is correspondingly delimited on the one hand by the sections 19, 20 and on the other hand by the sleeve part 13, can be larger than the chamber 24 and also has approximately square cross sections.
  • the front end wall of the chamber 26 is adjoined by a multiplicity of connecting channels 27, which are narrower and substantially shorter than the connecting channels 25 and arranged in a ring around the chamber 23.
  • the connecting channels 27 are formed by longitudinal grooves on the inner circumference of the sleeve part 13 and delimited by the outer circumference of the end section 20 and, like the connecting channels 25, each have a constant width over their length. They extend to the bottom end wall 29 of a chamber provided as a junction 28 for the media; this end wall 29 is formed by the front end face of the sleeve part 12 and an inner ring surface lying in its plane of an enlarged inner portion of the sleeve part 13.
  • the described channel arrangement forms a flow stabilization 30 for the supplied air which is located immediately before the junction 28 and which, like the liquid, is essentially only guided or enters and exits axially.
  • the liquid is foamed with the air in such a way that the foam from the outlet 31 opposite on the face side enters an approximately constantly wide, elongated end channel 33, whose front end forms the outlet opening 5 and in which the foam can still stabilize completely.
  • the slightly further end channel 33 compared to the chamber 23 is narrower than the chamber 32.
  • the chamber 32 is essentially completely filled with a sieve unit 37, the fine-meshed or microporous sieves 38 of which are perpendicular to the direction of flow and to the central axis 10 in a uniform, slight manner Distances are one behind the other and engage with their peripheral edges 39 tightly in the inner circumference 36 of the chamber 32.
  • the inlet openings 34, 35 for liquid and air, which are located in a common plane and are formed by the ends of the chamber 23 and the connecting channels 27, are located at a radial distance within the inner circumference 36 immediately adjacent to the end face of the first sieve 38 and at substantially equal distances therefrom.
  • sieves 38 and the chamber 32 cause a further throttling and calming of the air flow, which penetrates the pores of the sieve with entrainment of the liquid, so that the foaming can begin or take place between adjacent sieves 38 and the foam that is formed also due to the volume increase occurring through the others Sieve 38 is pressed. The foam is then compressed slightly in the area of the narrower outlet 31.
  • the length of the chamber 32 can be less than its width, four sieves 38 being arranged one behind the other in the case shown.
  • the chamber 32 can be supplied with further liquid from the chamber 23 at any time.
  • the air outlet of the air pump 8 can be valve-free or via a valve not preloaded in the manner of a pressure relief valve with a freely movable valve body, so that the flow rate and the pressure of the conveyed air can be controlled essentially solely by the manually actuated actuating pressure.
  • the air outlet of the pump can also be provided with a pressure relief valve. The same applies to an outlet valve of the liquid pump, which serves to refill the chamber 23 simultaneously with the air delivery.
  • the chamber 23 also serves to calm the flow, so that both the air and the liquid are supplied to the junction 28 only at low pressure and low flow velocity.
  • the chambers 24a, 26a, 32a and the channels 25a, 27a are formed by two sleeve parts 12, 40 which engage with one another over the majority of their length.
  • the connection channels 25a can be delimited on one long side by the outer circumference of the inner sleeve part 40 and on all other long sides by a groove in the inner circumference of the outer sleeve part 12a, as described with reference to the channels 27.
  • the bottom of this groove forms the associated, radially outer boundary of the chamber 26a, the side flanks of which, like the chamber 24a, are formed by two opposing annular shoulders on the one hand of the sleeve part 40 and on the other hand of the sleeve part 12a.
  • the front end section 20a of the sleeve part 40 is reduced in outer diameter compared to the section adjoining the rear annular shoulder of the chamber 26a and is provided over the circumference with longitudinal webs 44 which engage in corresponding longitudinal grooves on the inner circumference of the inner channel by insertion.
  • the longitudinal grooves 45 can end or be longer at the front end 29a of the sleeve part 40 or at the front ends of the webs 44 and thus approximately at the rear end of the chamber 32a, or can go as far as the outlet 31a.
  • the rear fastening end 16a of the sleeve part 40 but also the rear end 18a of the sleeve part 12a are each fixed in corresponding bores in the base body 2a by engagement or pressing. Only the rear fastening end 18a of the sleeve part 12a is axially secured with respect to the base body 2a by a snap connection, while the inner sleeve part 40 is secured against forward movements by the stop of its front end on the sleeve part 12a.
  • the chamber 23a has a rear channel section 42 and a narrower, front channel section 43 which runs smoothly through to the inlet opening 34a.
  • the feed channels 22a form channel sections 41 in the area of the core 15a, which are delimited in a closed cross-section over the circumference.
  • the bore receiving the core 15a extends with a constant inner width beyond the front end of the core 15a by an amount that is smaller than its width. Then this bore passes into the slightly widened section 42, which connects to the rear end of the channel section 43 via an annular, conical shoulder and is longer in relation to its inner width.
  • the longer channel section 43 is narrower than the bore receiving the core 15a.
  • the bottom surfaces of the grooves forming the channel sections 41 go continuously up to the conical annular shoulder, but the groove depth is correspondingly smaller due to the expansion of the channel section 42 in its area.
  • the liquid can leave the inlet opening 34a as an enveloping stream which has been formed on the inner circumference of the channel section 43.
  • the air also leaves the inlet openings 35a in a corresponding envelope stream formed from individual longitudinal streams.
  • the front end 13a of the sleeve part 12a is reduced in outer width and lies essentially without contact in a front bore section 47 of the outer sleeve 14a, which merges into the rear end of the end channel 33a via an inner annular shoulder.
  • the bore section 47 merges via an annular shoulder into a slightly enlarged bore section 46, in which the further section of the sleeve part 12a engages tightly and with limited stops.
  • the end channel 33 or 33a is used for the finished development and stabilization of the foam and is therefore smooth-walled and free from edges or abrupt changes in its width. 5, the end channel 33a is widened at an acute angle from the rear end to the outlet opening 5a, and its length is greater than its central width. This allows the foam on the way through the end channel 33a to expand slightly radially and to assume an even finer structure. In the region of the outlet opening 5a, the front edge of the end channel 33a is convexly rounded in cross section, so that here too the foam is not released abruptly from its circumference.
  • the feed channel 11a of the connection 7a is formed by a tubular connection piece, onto which a valve housing of an outlet valve of the air pump can be snapped and thereby fastened.
  • this valve or the associated valve seat is located directly adjacent to the chamber 24a, into which the supply channel 11a opens radially.
  • the sleeve parts 12a, 40 and the outer sleeve 14a can be assembled in pairs or all to pre-assembled modules.
  • the sleeve part 40 can also be preassembled in front of the sleeve part 12a and the outer sleeve 14a on the base body 2a, after which the sleeve part 12a and the outer sleeve 14a can be assembled one after the other or as an assembly. This results in simple assembly.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)
  • Magnetic Heads (AREA)
  • Coating Apparatus (AREA)
  • Closures For Containers (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Photographic Developing Apparatuses (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)

Claims (13)

  1. Tête distributrice de produits, comprenant un point de réunion (28, 28a) pour au moins deux produits séparés qui doivent être mélangés entre eux ou qui forment une mousse, une ouverture de sortie (5, 5a) et, pour l'un au moins des produits, une stabilisation de l'écoulement (30, 30a) montée en amont de l'un au moins des points de réunion (28, 28a), la réunion des produits n'ayant lieu qu'au voisinage immédiat d'un corps perméable à surface importante (38) ou sur celui-ci.
  2. Tête distributrice selon la revendication 1, caractérisée par le fait qu'au moins un trajet d'écoulement destiné à l'amenée d'un produit est élargi au moins une fois et rétréci à nouveau au moins une fois, le trajet d'écoulement étant divisé de préférence, dans une zone rétrécie au moins, en plusieurs canaux individuels qui sont raccordés à au moins une zone commune élargie, laquelle est située en particulier à distance du point de réunion (28).
  3. Tête distributrice selon la revendication 1 ou 2, caractérisée par le fait qu'il est prévu, pour une stabilisation de l'écoulement au moins (30), au moins une chambre de stabilisation (24, 26, 32) qui présente une section transversale de passage élargie par rapport à un canal raccordé au moins ou, respectivement, à une ouverture d'entrée associée, qui est de préférence annulaire et/ou à laquelle au moins une ouverture d'entrée des produits, d'une part, et au moins une ouverture de sortie des produits, d'autre part, se raccordent sur des parois de la chambre qui sont situées approximativement l'une en face de l'autre.
  4. Tête distributrice selon l'une des revendications précédentes, caractérisée par le fait que la section transversale de sortie d'au moins une chambre de stabilisation (24, 26, 32) est plus grande que sa section transversale d'entrée et/ou plus petite que sa section transversale efficace, par le fait qu'en particulier la chambre de stabilisation présente un plus grand nombre d'ouvertures de sortie que d'ouvertures d'entrée, la largeur de ces dernières étant approximativement égale à celle de canaux associés, et par le fait que, de préférence, au moins une chambre de stabilisation (26) est raccordée au point de réunion (28) par l'intermédiaire d'au moins une ouverture de sortie, et en particulier par l'intermédiaire d'au moins un canal de liaison (27) qui est rectiligne, pour l'essentiel, et/ou qui présente une section transversale constante, les ouvertures d'entrée (35) dans le point de réunion (28) pouvant être disposées de façon à former une couronne au moins.
  5. Tête distributrice selon l'une des revendications précédentes, caractérisée par le fait qu'au moins un trajet d'écoulement destiné à amener un produit présente au moins deux chambres élargies (24, 26) qui sont situées l'une derrière l'autre, qui présentent à peu près les mêmes dimensions, en particulier, et parmi lesquelles une chambre arrière est réalisée sous la forme d'une chambre de répartition (24) destinée à des canaux (11, 25) d'amenée et de raccordement à une chambre de stabilisation avant (26), celle-ci présentant en particulier une distance au point de réunion (28) qui est inférieure à la distance entre les chambres (24, 26), et par le fait qu'il est prévu de préférence, entre au moins une chambre de stabilisation (24, 26) et le point de réunion (28), au moins un canal de liaison allongé, comme une couronne de canaux de liaison (27) qui, en particulier, sont à chaque fois rectilignes pour l'essentiel et/ou présentent une section transversale constante.
  6. Tète distributrice selon l'une des revendications précédentes, caractérisée par le fait qu'au moins une chambre de stabilisation (23) destinée à un produit au moins est allongée à la manière d'un perçage et/ou est raccordée à un canal d'amenée au moins (22), lequel est situé entre une surface latérale et un noyau (15), par le fait qu'en particulier la section transversale de passage de la chambre est plusieurs fois plus grande que la section transversale de passage de l'ensemble des canaux d'amenée, et par le fait que, de préférence, au moins une chambre (26) destinée à l'amenée d'un produit est disposée latéralement au voisinage immédiat d'au moins une chambre (23) destinée à l'amenée d'un autre produit, et en particulier d'une manière annulaire autour de cette chambre (23), les directions d'écoulement des deux produits pouvant être situées à peu près parallèlement, à la manière d'un guidage coaxial, en amont du point de réunion (28) et, en particulier, du moins à partir d'une chambre de répartition au moins.
  7. Tête distributrice selon l'une des revendications précédentes, caractérisée par le fait qu'il est prévu, pour un produit au moins, une amenée dont le volume est en particulier limité par la course d'une pompe à la manière d'un cycle de refoulement et/ou par le fait que la pression d'amenée d'au moins un produit peut être commandée manuellement ou, respectivement, sans soupape pour l'essentiel, cependant qu'il est prévu de préférence, pour un produit au moins, une pompe comprenant une chambre de pompage, et, en particulier, deux pompes à piston de poussée qui peuvent être actionnées en commun et qui sont disposées l'une derrière l'autre en présentant le même axe pour l'essentiel.
  8. Tête distributrice selon l'une des revendications précédentes, caractérisée par le fait que le point de réunion (28) est réalisé en vue d'un mélange intime des produits, et en particulier en vue de la formation de mousse à partir d'un produit liquide et d'un produit gazeux, et qu'il comporte de préférence une chambre de réaction (32) dont la paroi frontale (29) située du côté de l'entrée présente au moins une couronne de petites ouvertures d'entrée (35) qui sont destinées à un produit, ainsi qu'au moins une ouverture d'entrée (34) qui est située à l'intérieur de cette couronne et qui est destinée à un autre produit au moins.
  9. Tête distributrice selon l'une des revendications précédentes, caractérisée par le fait qu'à une chambre (32) qui forme le point de réunion (28) se raccorde, pour l'essentiel sur toute sa largeur et directement par une extrémité, une chambre de stabilisation (23) qui est prévue en particulier pour un produit liquide, et/ou que s'y raccorde, par l'intermédiaire d'une pluralité de canaux de liaison (27), une chambre de stabilisation (26) qui est prévue en particulier pour un produit gazeux, et par le fait que, de préférence, la largeur de passage de l'ouverture d'entrée de liquide (34) est de préférence plusieurs fois plus grande que l'ensemble de la section de passage de toutes les ouvertures d'entrée de gaz (35).
  10. Tête distributrice selon l'une des revendications précédentes, caractérisée par le fait qu'une chambre (32) perméable aux produits et destinée à un produit au moins est divisée plusieurs fois, en étant en particulier réalisée, pour l'essentiel complètement, sous la forme d'une structure à pores fins ou, respectivement, qu'elle comporte au moins un ou plusieurs tamis à surface plane (38), cependant que, de préférence, au moins une ouverture d'entrée des produits (34, 35) de la chambre (32) se raccorde directement aux pores de la structure, en évitant pour l'essentiel les espaces vides, ou, respectivement, que le point de réunion (28) des produits est prévu pour l'essentiel exclusivement à l'intérieur de la structure à pores fins.
  11. Tête distributrice selon l'une des revendications précédentes, caractérisée par le fait qu'une chambre (32) destinée aux produits réunis se raccorde dans la direction de l'écoulement à un canal (33) de sortie ou d'extrémité, respectivement, dont la largeur est au plus à peu près la même que la sienne, et qu'elle présente en particulier dans la direction du passage une étendue qui est plus faible que sa largeur, cependant que, de préférence, une couronne d'ouvertures d'entrée des produits (35) est plus proche de son pourtour intérieur (36) que de son axe central (10) et/ou qu'une ouverture centrale (34) d'entrée des produits est étroitement entourée par cette couronne.
  12. Tête distributrice selon l'une des revendications précédentes, caractérisée par le fait que le point de réunion (28) et/ou la chambre de stabilisation de l'écoulement (30) présente des parties de manchon enfoncées axialement les unes dans les autres, et en particulier une première partie de manchon (12) qui entoure des canaux de raccordement (25) analogues à des perçages ménagés dans la paroi latérale du manchon, ainsi qu'une chambre de stabilisation (23) située à l'intérieur de ceux-ci, et sur la partie terminale antérieure réduite (20) de laquelle est posée en particulier une deuxième partie de manchon (13), celle-ci délimitant le point de réunion (28), du moins sur son pourtour extérieur, des canaux de liaison (27) en commun avec cette partie terminale (20) et/ou une chambre de stabilisation annulaire (26), du moins sur son pourtour extérieur, cependant que, de préférence, la deuxième partie de manchon (13) est complètement entourée par un manchon extérieur (14) formant une tubulure de sortie (3) qui comporte l'ouverture de sortie (5) et qui fait saillie au-delà du point de réunion (28) et/ou que la première partie de manchon (12) est entourée par ce manchon extérieur à l'exception d'une extrémité de raccordement et de fixation (16) qui délimite une chambre annulaire arrière (24), au moins sur son pourtour extérieur, et qui reçoit un noyau (15) dans un perçage du manchon.
  13. Tête distributrice selon la revendication 12, caractérisée par le fait qu'une partie de manchon intérieure (40) et une partie de manchon extérieure (12a) délimitent au moins une chambre de stabilisation (26a) et/ou des canaux de liaison (27a) entre leurs surfaces latérales tournées l'une vers l'autre, en particulier au moyen de rainures longitudinales et de canaux de raccordement (25a), par le fait qu'une extrémité avant (29a) de la partie de manchon intérieure (40) délimite de préférence une chambre (32a) à son extrémité arrière, et par le fait qu'en particulier une chambre (23a) située à l'intérieur de la partie de manchon intérieure (40) comporte au moins deux parties longitudinales (42, 43) qui se raccordent entre elles dans la direction longitudinale et dont les sections transversales de passage sont différentes, cependant que, de préférence, une partie longitudinale plus large (42) est pourvue de rainures longitudinales et qu'elle se raccorde dans la direction de l'écoulement à une partie longitudinale plus étroite à parois lisses (43) qui s'étend jusqu'à l'extrémité avant (29a) de la partie de manchon intérieure (40).
EP91905785A 1990-03-14 1991-03-12 Tete d'applicateur pour substances Expired - Lifetime EP0519967B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4008069 1990-03-14
DE4008069A DE4008069A1 (de) 1990-03-14 1990-03-14 Austragkopf fuer medien
PCT/EP1991/000456 WO1991013687A1 (fr) 1990-03-14 1991-03-12 Tete d'applicateur pour substances

Publications (2)

Publication Number Publication Date
EP0519967A1 EP0519967A1 (fr) 1992-12-30
EP0519967B1 true EP0519967B1 (fr) 1994-11-02

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EP91905785A Expired - Lifetime EP0519967B1 (fr) 1990-03-14 1991-03-12 Tete d'applicateur pour substances

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US (1) US5520337A (fr)
EP (1) EP0519967B1 (fr)
JP (1) JP3329809B2 (fr)
AT (1) ATE113506T1 (fr)
AU (1) AU7464891A (fr)
DE (2) DE4008069A1 (fr)
ES (1) ES2063501T3 (fr)
WO (1) WO1991013687A1 (fr)
ZA (1) ZA911829B (fr)

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DE102004003266A1 (de) * 2004-01-21 2005-08-25 Seaquist Perfect Dispensing Gmbh Vorrichtung und Sprühknopf zur Zerstäubung einer kosmetischen Flüssigkeit
US8544698B2 (en) * 2007-03-26 2013-10-01 Gojo Industries, Inc. Foam soap dispenser with stationary dispensing tube
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US11643946B2 (en) 2013-10-02 2023-05-09 Aerocore Technologies Llc Cleaning method for jet engine
ITRM20130562A1 (it) * 2013-10-11 2015-04-12 Manuele Casale Dispositivo di erogazione di una sostanza in forma di aerosol
US10308405B2 (en) * 2014-11-26 2019-06-04 Des-Case Corporation Oil dispensing lid
DE102016108447A1 (de) * 2016-05-06 2017-11-09 S O L O Kleinmotoren Gesellschaft Mit Beschränkter Haftung Verschäumungseinheit zum Erzeugen von Schaum aus einem Gemisch aus Gas und Flüssigkeit sowie Sprühgerät zum Erzeugen und Verteilen von Schaum
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Also Published As

Publication number Publication date
WO1991013687A1 (fr) 1991-09-19
DE59103430D1 (de) 1994-12-08
JPH05505141A (ja) 1993-08-05
ES2063501T3 (es) 1995-01-01
US5520337A (en) 1996-05-28
ZA911829B (en) 1991-12-24
EP0519967A1 (fr) 1992-12-30
DE4008069A1 (de) 1991-09-19
JP3329809B2 (ja) 2002-09-30
ATE113506T1 (de) 1994-11-15
AU7464891A (en) 1991-10-10

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