EP0584428A1 - Mixer for double dispensing cartridges - Google Patents

Mixer for double dispensing cartridges Download PDF

Info

Publication number
EP0584428A1
EP0584428A1 EP92810645A EP92810645A EP0584428A1 EP 0584428 A1 EP0584428 A1 EP 0584428A1 EP 92810645 A EP92810645 A EP 92810645A EP 92810645 A EP92810645 A EP 92810645A EP 0584428 A1 EP0584428 A1 EP 0584428A1
Authority
EP
European Patent Office
Prior art keywords
component
mixer
coil
cartridge
chamber
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.)
Granted
Application number
EP92810645A
Other languages
German (de)
French (fr)
Other versions
EP0584428B1 (en
Inventor
Wilhelm A. Keller
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 EP92810645A priority Critical patent/EP0584428B1/en
Priority to DE59205705T priority patent/DE59205705D1/en
Priority to US08/110,707 priority patent/US5487606A/en
Priority to JP20970093A priority patent/JP3219341B2/en
Publication of EP0584428A1 publication Critical patent/EP0584428A1/en
Application granted granted Critical
Publication of EP0584428B1 publication Critical patent/EP0584428B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00553—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with means allowing the stock of material to consist of at least two different components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4314—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles
    • B01F25/43141—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles composed of consecutive sections of helical formed elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00553—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with means allowing the stock of material to consist of at least two different components
    • B05C17/00556—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with means allowing the stock of material to consist of at least two different components with means for adjusting the proportions of the components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/2305—Mixers of the two-component package type, i.e. where at least two components are separately stored, and are mixed in the moment of application
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/501—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use
    • B01F33/5011—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00503—Details of the outlet element
    • B05C17/00516—Shape or geometry of the outlet orifice or the outlet element

Definitions

  • the present invention relates to a mixer for double discharge cartridges according to the preamble of claim 1.
  • Such mixers are previously known, for example from EP-B-121 342, and have the task of intimately affecting the two components which are discharged from the discharge cartridges mix so that they can be prepared in this way.
  • the two storage cylinders of the discharge cartridge have approximately the same volume and also have approximately the same discharge openings, mixing the two components no longer poses any major problems from the start.
  • the storage cylinders have significantly different volumes - which is synonymous with different cross-sections, since the storage cylinders have the same length due to manufacturing and operating reasons - and have outlet openings, for example in a ratio of 10: 1, there is a risk that the component will be made of the thicker one Storage cylinder at the beginning of the discharge, the mixer coil group of the mixer, due to different influences, such as different elasticity of the two cartridge cylinders, fills up and thus the second component is suppressed with a smaller volume.
  • the second component is generally the hardener and a component mixture with too little hardener cannot be used, it is customary to stabilize the partial streams in the desired proportioning, first to squeeze a certain amount uselessly before the actual application of the mixture begins can be. Apart from the loss of component mass, these discharged substances cannot harden and lead to problems in disposal.
  • the inlet part of the mixer is designed such that it is divided into a large inlet chamber for the component with the larger discharge volume and into a smaller inlet chamber for the component with the smaller discharge volume, and the component is stowed in the larger inlet chamber and then into the smaller inlet chamber is directed to take the second component with the smaller volume.
  • the first coil belongs to the input part, in which the first component is stowed and then fed to the second component, and in the second embodiment for a larger mixing coil group, this already takes place in the input chambers in front of the first coil.
  • FIGS. 1 and 2 show in two perspective views the input part 2 and the upper part of the mixing coil group 1, and FIG. 3 shows the input of the mixer housing 3.
  • one component reaches one half of the first coil and the other component in the latter the other half, the mixer coil group being constructed in such a way that the two components mix well along the mixer up to the discharge end.
  • the mixing ratio of the partial flows stabilizes at a certain value.
  • component A in the present example mass A, which enters through the larger opening, leads the mixer before component B with the smaller volume can mix with it, it is suggested that component A be added first jam and then combine them with component B from the beginning. In the first exemplary embodiment according to FIGS. 1-3 and 4, this is done in that component A is stowed in the input part and in one half of the first helix, then reaches the other half in order to take component B there.
  • the input part 2 to the first coil 10, which belongs to the input part, and to the mixing coil group 1 has a large one Input opening 4 for component A and a small input opening 5 for component B, these two openings, respectively. Chambers separated by a wall 6.
  • the larger input chamber 4 has a bottom 7, in which an outlet opening 8 is arranged.
  • this outlet opening 8 is laterally offset from the wall 9 of the first coil 10 arranged in the center of the base, so that the component A, which flows through this outlet opening 8, is completely on one side 10 A of the coil 10 reached.
  • the spiral wall 9 runs perpendicular to the partition 6 between the two inlet openings, respectively. Entrance chambers.
  • component A would flow along helical group 1 to the discharge opening in order to be occasionally mixed with component B.
  • a spiral base 11 is installed at the end of the first spiral half 10 A, which seals this half, but a minimal hair gap is provided to allow the air to escape.
  • Component A therefore builds up there when filling up and fills up this half of the coil. So that this component can continue to flow, a passage opening 12 with height x is arranged on the coil half 10 B for the component B in the coil wall 9, which can be clearly seen in FIG.
  • component B passes directly through the coil half 10 B into the subsequent coils 1, since this half is not closed at the bottom.
  • the two components are already in the second half of the coil 10 B brought together and mixed together in the subsequent coils 1, this being particularly important in the start-up phase, ie before the entire mixer is filled up.
  • the design of the subsequent coils of coil group 1 is the same as that of previously known mixers and is therefore not described further.
  • the spiral wall 9 can also run parallel to the partition wall 6 and two such openings 13 can be provided instead of one through opening. As a result, component B is flowed around by the two partial streams of component A.
  • the small entrance opening 5 In principle, the small entrance opening 5, respectively. the small entrance chamber with the necessary dimensions can be sprayed directly, but this places great demands on the injection molds, especially with small helices and small entrance openings, especially with a volume ratio of 10: 1. It is therefore expedient to provide a relatively larger volume for the small inlet opening and chamber at the inlet part, which can be sprayed more easily, and to provide a nose 14 on the mixer housing 3 which extends into this smaller inlet opening and thus determines its cross section. In terms of production technology, this makes it possible to produce the same mixer coil group with the same input part for a certain number of different inlet openings and to change the dimensions of the nose 14 on the mixer housing. As shown in Figure 2, the small entrance chamber does not have parallel longitudinal walls, but tapered walls 15, which facilitates the insertion of the nose 14. Neither the side walls nor the nose walls have to be conical to one another, both or a part alone can have parallel walls.
  • the nose 14 not only has the task of determining the cross section of the smaller inlet opening, but also a second task of positioning the mixer coil group exactly with respect to the mixer housing when assembling the mixer, since when the mixer is placed on the discharge cartridge, the two outlet openings of the cartridge must exactly match the inlet openings of the mixer.
  • the bottom 7 and the cover flange 16 with the two inlet openings 4 and 5 are seated on the corresponding shoulders 17 and 18 in the mixer housing.
  • the cover flange 16 then also forms the sealing surface for the cartridge outlet.
  • the second exemplary embodiment according to FIGS. 5 and 6 is particularly suitable for larger mixer diameters.
  • component A only jams in the two halves of the larger entrance chamber, so that the entire coil group can be used to mix the two components.
  • the input part in this second exemplary embodiment is formed only from the input chambers, without a first coil.
  • FIG. 5 shows the input part 20 and the upper part of the subsequent mixing coil group 19 and in FIG. 6 the input of the mixer housing 21.
  • the storage space ratio of the input chambers is greater than the respective mixing ratio.
  • the part of the larger input chamber, which is on the side with the small input chamber B, has a cover flange 39. The separation of the partial streams from the outlet of the cartridge by a web 40 is carried out analogously to the previously known embodiment according to EP-B-232 733.
  • the larger input chamber 22 for component A is divided here by a partition 23 for reasons of stability, but this does not have to be continuous.
  • the smaller input chamber 24 for component B here only consists of a chamber.
  • the volume of the small entrance chamber respectively. the area of the small inlet opening, determined by the dimensioning of the nose 25 on the mixer housing 21.
  • the side walls 26 of the smaller entrance chamber are arranged parallel to one another.
  • the floor 27 for both partial halves of the larger entrance chamber has no opening downwards, i.e. to the first helix 28.
  • Component A passes through a throttle opening 29 in wall 30 between the two input chambers into smaller input chamber 24 in order to unite with component B there and take it with it.
  • the throttle opening 29 has a similar function to the through opening 12 in the first exemplary embodiment and, when the mixer is being filled, causes component A to backflow and to combine with the second component B at the beginning of the mixer.
  • the bottom 27 rests on a corresponding shoulder 31 in the mixer housing.
  • the flange 32 has two rounded sides 33 and two straight sides 34 and 35, one side, in the example according to FIG. 3 or 6 the side 35, having a recess 36.
  • a corresponding tongue is provided on one of the two holding parts, so that the mixer can only be pressed into the holder in a certain position and locked with a quarter turn.
  • two shoulders 37 on the mixing tube side of the mixer serve, which abut the holder.
  • the flange has a different thickness in order to produce a pressure in the holder against the end face of the cartridge outlet nozzle.
  • a safety cam 38 is arranged at its opening, which in the correct position of the mixer fits into a recess in a circumferential shoulder on the cartridge.
  • the tongue on the holding part of the cartridge, the recess on the flange of the mixer housing, the recess on the shoulder of the cartridge and the safety cam are in a certain geometric relationship to one another or to the two input chambers.

Abstract

The mixer for double dispensing cartridges with two supply cylinders whose volume ratio is different from 1:1 has a mixer housing (3) which can be attached to the cartridge and a mixer-helix assembly (1) arranged therein. The two discharge openings of the cartridge are connected to a feed part (2) disposed upstream of the mixer-helix assembly (1), which feed part is subdivided into a larger feed chamber (4, 10 A) for the first component (A) with the greater dispensing volume and a smaller feed chamber (5, 10 B) for the second component (B) with the smaller dispensing volume and has first means (11) for accumulating the first component (A) and second means (12) for guiding said first component into the feed chamber (5) of the second component and carrying the latter along with it. Such a mixer makes possible intimate thorough mixing of the components without the necessity of first having to dispense a specific volume uselessly to set the correct mixing ratio. <IMAGE>

Description

Die vorliegende Erfindung bezieht sich auf einen Mischer für Doppelaustragkartuschen gemäss dem Oberbegriff von Patentanspruch 1. Solche Mischer sind vorbekannt, beispielsweise aus der EP-B-121 342, und haben die Aufgabe, die beiden Komponenten, die aus den Austragkartuschen ausgetragen werden, innig zu mischen, um sie derart aufbereitet auftragen zu können.The present invention relates to a mixer for double discharge cartridges according to the preamble of claim 1. Such mixers are previously known, for example from EP-B-121 342, and have the task of intimately affecting the two components which are discharged from the discharge cartridges mix so that they can be prepared in this way.

Falls die beiden Vorratszylinder der Austragkartusche ungefähr das gleiche Volumen aufweisen und auch ungefähr die gleichen Austragöffnungen besitzen, stellt das Vermischen der beiden Komponenten von Anfang an keine grossen Probleme mehr. Falls jedoch die Vorratszylinder wesentlich verschiedene Volumina - was gleichbedeutend mit verschiedenen Querschnitten ist, da die Vorratszylinder herstellungs- und betriebsbedingt die gleiche Länge besitzen - und Austrittöffnungen aufweisen, beispielsweise in einem Verhältnis von 10:1, besteht die Gefahr, dass die Komponente aus dem dickeren Vorratszylinder beim Beginn des Austragens die Mischwendelgruppe des Mischers, bedingt durch verschiedene Einflüsse, wie unterschiedliche Elastizität der beiden Kartuschenzylinder, auffüllt und somit die zweite Komponente mit geringerem Volumen unterdrückt wird. Da es sich im allgemeinen bei der zweiten Komponente um den Härter handelt und eine Komponentenmischung mit zuwenig Härter nicht brauchbar ist, ist es zur Stabilisierung der Teilströme in der gewünschten Proportionierung üblich, zuerst eine gewisse Menge nutzlos auszupressen, bevor mit dem eigentlichen Auftragen der Mischung begonnen werden kann. Abgesehen vom Verlust an Komponentenmasse können diese ausgetragenen Substanzen nicht aushärten und zu Problemen bei der Entsorgung führen.If the two storage cylinders of the discharge cartridge have approximately the same volume and also have approximately the same discharge openings, mixing the two components no longer poses any major problems from the start. However, if the storage cylinders have significantly different volumes - which is synonymous with different cross-sections, since the storage cylinders have the same length due to manufacturing and operating reasons - and have outlet openings, for example in a ratio of 10: 1, there is a risk that the component will be made of the thicker one Storage cylinder at the beginning of the discharge, the mixer coil group of the mixer, due to different influences, such as different elasticity of the two cartridge cylinders, fills up and thus the second component is suppressed with a smaller volume. Since the second component is generally the hardener and a component mixture with too little hardener cannot be used, it is customary to stabilize the partial streams in the desired proportioning, first to squeeze a certain amount uselessly before the actual application of the mixture begins can be. Apart from the loss of component mass, these discharged substances cannot harden and lead to problems in disposal.

Es ist davon ausgehend Aufgabe der vorliegenden Erfindung einen Mischer anzugeben der sicherstellt, dass die zweite Komponente mit geringerem Volumen nicht unterdrückt wird, damit die unbrauchbar ausgetragene Masse nicht erst entsteht oder ganz wesentlich reduziert wird. Ein Mischer, der diese Aufgabe löst, ist in den Patentansprüchen definiert.Based on this, it is the object of the present invention to provide a mixer which ensures that the second component with a smaller volume is not suppressed, so that the uselessly discharged mass does not first arise or is significantly reduced. A mixer that solves this problem is defined in the claims.

Demgemäss wird das Eingangsteil des Mischers derart gestaltet, dass es in eine grosse Eingangskammer für die Komponente mit dem grösseren Austragvolumen und in eine kleinere Eingangskammer für die Komponente mit dem kleineren Austragvolumen unterteilt wird und die Komponente in der grösseren Eingangskammer gestaut und anschliessend in die kleinere Eingangskammer geleitet wird, um die zweite Komponente mit dem kleineren Volumen mitzunehmen.Accordingly, the inlet part of the mixer is designed such that it is divided into a large inlet chamber for the component with the larger discharge volume and into a smaller inlet chamber for the component with the smaller discharge volume, and the component is stowed in the larger inlet chamber and then into the smaller inlet chamber is directed to take the second component with the smaller volume.

Dadurch wird gewährleistet, dass beide Komponentenströme von Anfang an vorhanden sind und sich in der nachfolgenden Wendelgruppe miteinander vermischen können. In einem ersten Ausführungsbeispiel für eine Mischwendelgruppe mit kleinerem Durchmesser gehört die erste Wendel zum Eingangsteil, in dem die erste Komponente gestaut und anschliessend der zweiten Komponente zugeführt wird und im zweiten Ausführungsbeispiel für eine grössere Mischwendelgruppe geschieht dies bereits in den Eingangskammern vor der ersten Wendel.This ensures that both component flows are present from the start and can mix with each other in the subsequent coil group. In a first embodiment for a mixing coil group with a smaller diameter, the first coil belongs to the input part, in which the first component is stowed and then fed to the second component, and in the second embodiment for a larger mixing coil group, this already takes place in the input chambers in front of the first coil.

Die Erfindung wird im folgenden anhand einer Zeichnung von Ausführungsbeispielen näher erläutert:

  • Die Figuren 1 - 3 zeigen in perspektivischer Sicht ein erstes Ausführungsbeispiel der Erfindung,
  • Fig. 4 zeigt eine Ausführungsvariante zum ersten Ausführungsbeispiel, und
  • die Figuren 5 und 6 zeigen ein zweites Ausführungsbeispiel der Erfindung.
The invention is explained in more detail below with reference to a drawing of exemplary embodiments:
  • Figures 1-3 show a perspective view of a first embodiment of the invention,
  • Fig. 4 shows an embodiment variant of the first embodiment, and
  • Figures 5 and 6 show a second embodiment of the invention.

Die Figuren 1 und 2 zeigen in zwei perspektivischen Ansichten den Eingangsteil 2 und den oberen Teil der Mischwendelgruppe 1, und Figur 3 zeigt den Eingang des Mischergehäuses 3. Bei vorbekannten Mischern gelangt eine Komponente in die eine Hälfte der ersten Wendel und die andere Komponente in deren anderen Hälfte, wobei die Mischwendelgruppe derart konstruiert ist, dass sich die beiden Komponenten längs des Mischers bis zum Austragende gut vermischen. Wie eingangs erwähnt, kommt es bei vorbekannten Mischern mit unterschiedlichen Volumenverhältnissen, resp. Querschnittverhältnissen der Vorratszylinder dazu, dass die Masse mit dem grösseren Volumen die Masse mit dem kleineren Volumen, insbesondere beim Auffüllen des Mischrohres, unterdrückt, sodass kein vorgeschriebenes Mischverhältnis entstehen kann. Nach einer gewissen Zeit, d.h. wenn der Mischer vollständig gefüllt worden ist und eine bestimmte Menge ausgetragen wurde, stabilisiert sich das Mischverhältnis der Teilströme auf einen bestimmten Wert.FIGS. 1 and 2 show in two perspective views the input part 2 and the upper part of the mixing coil group 1, and FIG. 3 shows the input of the mixer housing 3. In the case of previously known mixers, one component reaches one half of the first coil and the other component in the latter the other half, the mixer coil group being constructed in such a way that the two components mix well along the mixer up to the discharge end. As mentioned at the beginning, there are known mixers with different volume ratios, respectively. Cross-sectional ratios of the supply cylinders so that the mass with the larger volume suppresses the mass with the smaller volume, especially when filling the mixing tube, so that no prescribed mixing ratio can occur. After a certain time, i.e. when the mixer has been completely filled and a certain amount has been discharged, the mixing ratio of the partial flows stabilizes at a certain value.

Um zu vermeiden, dass die Komponente mit der grösseren Masse, in vorliegendem Beispiel Masse A, die durch die grössere Oeffnung eintritt, im Mischer voreilt, bevor die Komponente B mit dem kleineren Volumen sich damit vermischen kann, wird vorgeschlagen, die Komponente A zunächst zu stauen und sie dann von Anfang an mit der Komponente B zu vereinen. Im ersten Ausführungsbeispiel gemäss den Figuren 1-3 und 4 geschieht dies dadurch, dass die Komponente A im Eingangsteil sowie in einer Hälfte der ersten Wendel gestaut wird, dann in deren anderen Hälfte gelangt, um dort die Komponente B mitzunehmen.In order to avoid that the component with the larger mass, in the present example mass A, which enters through the larger opening, leads the mixer before component B with the smaller volume can mix with it, it is suggested that component A be added first jam and then combine them with component B from the beginning. In the first exemplary embodiment according to FIGS. 1-3 and 4, this is done in that component A is stowed in the input part and in one half of the first helix, then reaches the other half in order to take component B there.

Das Eingangsteil 2 zur ersten Wendel 10, die zum Eingangsteil gehört, und zur Mischwendelgruppe 1 weist eine grosse Eingangsöffnung 4 für die Komponente A und eine kleine Eingangsöffnung 5 für die Komponente B auf, wobei diese beiden Oeffnungen, resp. Kammern, durch eine Wand 6 getrennt sind. Die grössere Eingangskammer 4 weist einen Boden 7 auf, in dem eine Auslassöffnung 8 angeordnet ist. Diese Auslassöffnung 8 ist, wie aus Figur 1 hervorgeht, seitlich versetzt zur in der Mitte des Bodens angeordneten Wand 9 der ersten Wendel 10 angeordnet, so dass die Komponente A, die durch diese Auslassöffnung 8 strömt, vollständig auf eine Seite 10 A der Wendel 10 gelangt. Wie aus Figur 1 ferner hervorgeht, verläuft die Wendelwand 9 senkrecht zur Trennwand 6 zwischen den beiden Eingangsöffnungen, resp. Eingangskammern.The input part 2 to the first coil 10, which belongs to the input part, and to the mixing coil group 1 has a large one Input opening 4 for component A and a small input opening 5 for component B, these two openings, respectively. Chambers separated by a wall 6. The larger input chamber 4 has a bottom 7, in which an outlet opening 8 is arranged. As can be seen in FIG. 1, this outlet opening 8 is laterally offset from the wall 9 of the first coil 10 arranged in the center of the base, so that the component A, which flows through this outlet opening 8, is completely on one side 10 A of the coil 10 reached. As can also be seen from FIG. 1, the spiral wall 9 runs perpendicular to the partition 6 between the two inlet openings, respectively. Entrance chambers.

Ohne weitere Massnahmen würde die Komponente A der Wendelgruppe 1 entlang zur Austragöffnung strömen, um gelegentlich mit der Komponente B vermischt zu werden. Um ein solches Durchströmen der Komponente A zu verhindern, ist am Ende der ersten Wendelhälfte 10 A ein Wendelboden 11 eingebaut, der diese Hälfte abdichtet, wobei jedoch ein minimaler Haarspalt zum Entweichen der Luft vorgesehen ist. Die Komponente A staut sich daher beim Auffüllen dort auf und füllt diese Wendelhälfte auf. Damit diese Komponente weiterfliessen kann, ist auf der Wendelhälfte 10 B für die Komponente B in der Wendelwand 9 eine Durchgangsöffnung 12 mit Höhe x angeordnet, die in Figur 2 deutlich zu erkennen ist.Without further measures, component A would flow along helical group 1 to the discharge opening in order to be occasionally mixed with component B. In order to prevent such a flow through the component A, a spiral base 11 is installed at the end of the first spiral half 10 A, which seals this half, but a minimal hair gap is provided to allow the air to escape. Component A therefore builds up there when filling up and fills up this half of the coil. So that this component can continue to flow, a passage opening 12 with height x is arranged on the coil half 10 B for the component B in the coil wall 9, which can be clearly seen in FIG.

Von der kleinen Eingangsöffnung 5, bzw. kleinen Eingangskammer, gelangt die Komponente B direkt durch die Wendelhälfte 10 B in die nachfolgenden Wendeln 1, da diese Hälfte unten nicht abgeschlossen ist. Durch diese Massnahme, d.h. durch das Stauen der Komponente A in der einen Hälfte der ersten Wendel und Hinüberleiten in die andere Hälfte, werden die beiden Komponenten bereits in der zweiten Wendelhälfte 10 B zusammengeführt und in den nachfolgenden Wendeln 1 miteinander vermischt, wobei dies insbesondere bei der Startphase wichtig ist, d.h. bevor der ganze Mischer aufgefüllt ist. Die Ausgestaltung der nachfolgenden Wendeln der Wendelgruppe 1 ist die gleiche wie bei vorbekannten Mischern und wird daher nicht weiter beschrieben.From the small entry opening 5 or small entry chamber, component B passes directly through the coil half 10 B into the subsequent coils 1, since this half is not closed at the bottom. As a result of this measure, ie by stowing component A in one half of the first coil and passing it over to the other half, the two components are already in the second half of the coil 10 B brought together and mixed together in the subsequent coils 1, this being particularly important in the start-up phase, ie before the entire mixer is filled up. The design of the subsequent coils of coil group 1 is the same as that of previously known mixers and is therefore not described further.

Wie in einer Ausführungsvariante gemäss Fig. 4 angedeutet ist, kann die Wendelwand 9 auch parallel zur Trennwand 6 verlaufen und statt einer Durchgangsöffnung zwei solche Oeffnungen 13 vorgesehen werden. Dadurch wird die Komponente B von den beiden Teilströmen der Komponente A umflossen.As indicated in an embodiment variant according to FIG. 4, the spiral wall 9 can also run parallel to the partition wall 6 and two such openings 13 can be provided instead of one through opening. As a result, component B is flowed around by the two partial streams of component A.

Im Prinzip könnte die kleine Eingangsöffnung 5, resp. die kleine Eingangskammer mit den notwendigen Dimensionen direkt gespritzt werden, doch stellt dies, insbesondere bei kleinen Wendeln und kleinen Eingangsöffnungen, insbesondere bei einem Volumenverhältnis von 10:1, grosse Anforderungen an die Spritzwerkzeuge. Es ist deshalb zweckmässig, für die kleine Eingangsöffnung und -kammer am Eingangsteil ein relativ grösseres Volumen vorzusehen, das leichter gespritzt werden kann, und dafür am Mischergehäuse 3 eine Nase 14 vorzusehen, die in diese kleinere Eingangsöffnung reicht und damit deren Querschnitt bestimmt. Herstellungstechnisch wird dadurch möglich, für eine gewisse Anzahl verschiedener Eingangsöffnungen die gleiche Mischwendelgruppe mit gleichem Eingangsteil herzustellen und am Mischergehäuse die Dimensionen der Nase 14 zu ändern. Wie in Figur 2 dargestellt, besitzt die kleine Eingangskammer nicht parallele Längswände, sondern konisch zulaufende Wände 15, wodurch das Einführen der Nase 14 erleichtert wird. Weder die Seitenwände noch die Nasenwände müssen konisch zueinander verlaufen, beide oder ein Teil allein können parallele Wände aufweisen.In principle, the small entrance opening 5, respectively. the small entrance chamber with the necessary dimensions can be sprayed directly, but this places great demands on the injection molds, especially with small helices and small entrance openings, especially with a volume ratio of 10: 1. It is therefore expedient to provide a relatively larger volume for the small inlet opening and chamber at the inlet part, which can be sprayed more easily, and to provide a nose 14 on the mixer housing 3 which extends into this smaller inlet opening and thus determines its cross section. In terms of production technology, this makes it possible to produce the same mixer coil group with the same input part for a certain number of different inlet openings and to change the dimensions of the nose 14 on the mixer housing. As shown in Figure 2, the small entrance chamber does not have parallel longitudinal walls, but tapered walls 15, which facilitates the insertion of the nose 14. Neither the side walls nor the nose walls have to be conical to one another, both or a part alone can have parallel walls.

Die Nase 14 hat nicht nur die eine Aufgabe, den Querschnitt der kleineren Eingangsöffnung zu bestimmen, sondern auch eine zweite Aufgabe, beim Zusammensetzen des Mischers die Mischwendelgruppe genau bezüglich des Mischergehäuses zu positionieren, da beim Aufsetzen des Mischers auf die Austragkartusche die beiden Auslassöffnungen der Kartusche genau mit den Eingangsöffnungen des Mischers übereinstimmen müssen. Wie aus den Figuren 1 bzw. 2 und 3 hervorgeht, sitzt der Boden 7 und der Deckflansch 16 mit den beiden Eingangsöffnungen 4 und 5 auf den entsprechenden Absätzen 17 und 18 im Mischergehäuse. Der Deckflansch 16 bildet dann auch die Dichtfläche für den Kartuschenauslass.The nose 14 not only has the task of determining the cross section of the smaller inlet opening, but also a second task of positioning the mixer coil group exactly with respect to the mixer housing when assembling the mixer, since when the mixer is placed on the discharge cartridge, the two outlet openings of the cartridge must exactly match the inlet openings of the mixer. As can be seen from FIGS. 1 and 2 and 3, the bottom 7 and the cover flange 16 with the two inlet openings 4 and 5 are seated on the corresponding shoulders 17 and 18 in the mixer housing. The cover flange 16 then also forms the sealing surface for the cartridge outlet.

Das zweite Ausführungsbeispiel gemäss den Figuren 5 und 6 eignet sich besonders für grössere Mischerdurchmesser. Dort staut sich die Komponente A nur in den beiden Hälften der grösseren Eingangskammer, so dass die ganze Wendelgruppe zum Durchmischen der beiden Komponenten verwendet werden kann. Das heisst auch, dass das Eingangsteil in diesem zweiten Ausführungsbeispiel nur aus den Eingangskammern gebildet wird, ohne erste Wendel. In Figur 5 ist der Eingangsteil 20 und der obere Teil der anschliessenden Mischwendelgruppe 19 und in Figur 6 der Eingang des Mischergehäuses 21 dargestellt. Bei diesem Ausführungsbeispiel ist das Stauraumverhältnis der Eingangskammern grösser als das jeweilige Mischverhältnis. Der Teil der grösseren Eingangskammer, der auf der Seite mit der kleinen Eingangskammer B liegt, weist einen Deckflansch 39 auf. Die Trennung der Teilströme gegenüber dem Austritt der Kartusche durch einen Steg 40 erfolgt analog der vorbekannten Ausführung gemäss EP-B-232 733.The second exemplary embodiment according to FIGS. 5 and 6 is particularly suitable for larger mixer diameters. There, component A only jams in the two halves of the larger entrance chamber, so that the entire coil group can be used to mix the two components. This also means that the input part in this second exemplary embodiment is formed only from the input chambers, without a first coil. FIG. 5 shows the input part 20 and the upper part of the subsequent mixing coil group 19 and in FIG. 6 the input of the mixer housing 21. In this embodiment, the storage space ratio of the input chambers is greater than the respective mixing ratio. The part of the larger input chamber, which is on the side with the small input chamber B, has a cover flange 39. The separation of the partial streams from the outlet of the cartridge by a web 40 is carried out analogously to the previously known embodiment according to EP-B-232 733.

Die grössere Eingangskammer 22 für die Komponente A ist hier aus Stabilitätsgründen durch eine Trennwand 23 unterteilt, die jedoch nicht durchgehend sein muss. Die kleinere Eingangskammer 24 für die Komponente B besteht hier nur aus einer Kammer. Wie beim ersten Ausführungsbeispiel wird das Volumen der kleinen Eingangskammer, resp. die Fläche der kleinen Eingangsöffnung, durch die Dimensionierung der Nase 25 am Mischergehäuse 21 mitbestimmt. In diesem Ausführungsbeispiel sind die Seitenwände 26 der kleineren Eingangskammer parallel zueinander angeordnet.The larger input chamber 22 for component A is divided here by a partition 23 for reasons of stability, but this does not have to be continuous. The smaller input chamber 24 for component B here only consists of a chamber. As in the first embodiment, the volume of the small entrance chamber, respectively. the area of the small inlet opening, determined by the dimensioning of the nose 25 on the mixer housing 21. In this exemplary embodiment, the side walls 26 of the smaller entrance chamber are arranged parallel to one another.

Der Boden 27 für beide Teilhälften der grösseren Eingangskammer besitzt keine Oeffnung nach unten, d.h. zur ersten Wendel 28, hin. Die Komponente A gelangt über je eine Drosselöffnung 29 in der Wand 30 zwischen den beiden Eingangskammern in die kleinere Eingangskammer 24, um sich bereits dort mit der Komponente B zu vereinigen und diese mitzunehmen. Zwischen der kleinen Eingangskammer 24 und der ersten Wendel 28 besteht eine direkter Durchgang, derart, dass die beiden Komponenten in die erste Wendel einfliessen können. Die Drosselöffnung 29 hat eine ähnliche Funktion wie die Durchgangsöffnung 12 im ersten Ausführungsbeispiel und bewirkt beim Auffüllen des Mischers einen Rückstau der Komponente A und ein Vereinigen mit der zweiten Komponente B bereits am Anfang des Mischers. In diesem Ausführungsbeispiel liegt der Boden 27 auf einem entsprechenden Absatz 31 im Mischergehäuse auf.The floor 27 for both partial halves of the larger entrance chamber has no opening downwards, i.e. to the first helix 28. Component A passes through a throttle opening 29 in wall 30 between the two input chambers into smaller input chamber 24 in order to unite with component B there and take it with it. There is a direct passage between the small inlet chamber 24 and the first coil 28, such that the two components can flow into the first coil. The throttle opening 29 has a similar function to the through opening 12 in the first exemplary embodiment and, when the mixer is being filled, causes component A to backflow and to combine with the second component B at the beginning of the mixer. In this embodiment, the bottom 27 rests on a corresponding shoulder 31 in the mixer housing.

Es ist auch möglich, beide Ausführungen miteinander zu kombinieren, z. B. das Eingangsteil 20 des zweiten Beispiels auf die erste Wendel 10 des ersten Beispiels anzuordnen.It is also possible to combine both versions, e.g. B. to arrange the input part 20 of the second example on the first coil 10 of the first example.

Damit die Austragöffnungen der Doppelkartusche mit den Eingangsöffnungen des Mischers übereinstimmen ist es notwendig Massnahmen vorzusehen, den Mischer in der richtigen Position auf der Kartusche aufzusetzen, insbesondere dann, wenn das Volumen- und Oeffnungsverhältnis beider Vorratszylinder verschieden von 1:1 ist. Im allgemeinen ist in solchen Fällen am Mischer ein Flansch vorgesehen, der in eine entsprechende Halterung am Kartuschenaustragende gehalten ist.So that the discharge openings of the double cartridge match the inlet openings of the mixer, it is necessary to take measures to place the mixer in the correct position on the cartridge, especially if the volume and opening ratio of both storage cylinders is different from 1: 1. Generally in such cases a flange is provided on the mixer, which is held in a corresponding holder on the cartridge discharge end.

Eine Massnahme wäre beispielsweise, den Flansch exzentrisch zur Mittellinie auszubilden, so dass er nur in einer bestimmten Stellung in eine entsprechende Halterung passt. Eine weitere, einfachere Massnahme ist in den Figuren 3 oder 6 vorgeschlagen. Der Flansch 32 weist zwei gerundete Seiten 33 und zwei gerade Seiten 34 und 35 auf, wobei die eine Seite, in Beispiel gemäss Figur 3 oder 6 die Seite 35, eine Ausnehmung 36 aufweist. An der an sich bekannten Halterung an der Kartusche für einen Mischer mit Flansch ist an einem der beiden Halteteile eine entsprechende Zunge vorgesehen, so dass der Mischer nur in einer bestimmten Stellung in die Halterung eingedrückt und mit einer Viertelsdrehung verriegelt werden kann. Zu diesem Zwecke dienen zwei Schultern 37 an der Mischrohrseite des Mischers, die an die Halterung anliegen. Ausserdem weist der Flansch eine unterschiedliche Dicke auf, um in der Halterung ein Anpressen an die Stirnseite des Kartuschenaustrittstutzen zu erzeugen.One measure would be, for example, to design the flange eccentrically to the center line so that it only fits into a corresponding holder in a certain position. Another, simpler measure is proposed in FIGS. 3 or 6. The flange 32 has two rounded sides 33 and two straight sides 34 and 35, one side, in the example according to FIG. 3 or 6 the side 35, having a recess 36. On the holder known per se on the cartridge for a mixer with a flange, a corresponding tongue is provided on one of the two holding parts, so that the mixer can only be pressed into the holder in a certain position and locked with a quarter turn. For this purpose, two shoulders 37 on the mixing tube side of the mixer serve, which abut the holder. In addition, the flange has a different thickness in order to produce a pressure in the holder against the end face of the cartridge outlet nozzle.

Um praktisch auszuschliessen, dass der Mischer falsch auf die Kartusche aufgesetzt werden kann, ist an dessen Oeffnung ein Sicherheitsnocken 38 angeordnet, der in der richtigen Stellung des Mischers in eine Aussparung eines umlaufenden Absatzes an der Kartusche passt. Dabei stehen selbstverständlich die Zunge am Halteteil der Kartusche, die Ausnehmung am Flansch des Mischergehäuses, die Aussparung am Absatz der Kartusche und der Sicherheitsnocken in einer bestimmten geometrischen Beziehung zueinander, bzw. zu den beiden Eingangskammern.In order to practically exclude that the mixer can be placed incorrectly on the cartridge, a safety cam 38 is arranged at its opening, which in the correct position of the mixer fits into a recess in a circumferential shoulder on the cartridge. Of course, the tongue on the holding part of the cartridge, the recess on the flange of the mixer housing, the recess on the shoulder of the cartridge and the safety cam are in a certain geometric relationship to one another or to the two input chambers.

Claims (9)

Mischer für Doppelaustragkartuschen mit mindestens zwei Vorratszylindern, deren Volumenverhältnis von 1:1 verschieden ist, mit einem Mischergehäuse, der an der Kartusche befestigbar ist und einer darin angeordneten Mischwendelgruppe, wobei die beiden Austragöffnungen der Kartusche mit dem Eingangsteil der Mischwendelgruppe in Verbindung stehen, dadurch gekennzeichnet, dass das Eingangsteil (2, 20) vor der Mischwendelgruppe (1, 19) in eine grössere Eingangskammer (4, 10 A; 22) für die erste Komponente (A) mit dem grösseren Austragvolumen und eine kleinere Eingangskammer (5, 10 B; 24) für die zweite Komponente (B) mit dem kleineren Austragvolumen unterteilt ist und erste Mittel (11, 27) aufweist, um die erste Komponente (A) zu stauen und zweite Mittel (12, 13; 29), um diese erste Komponente (A) in die Eingangskammer (5, 10 B; 24) der zweiten Komponente (B) zu leiten und diese mitzuführen.Mixer for double discharge cartridges with at least two storage cylinders, the volume ratio of which is different from 1: 1, with a mixer housing that can be attached to the cartridge and a mixing coil group arranged therein, the two discharge openings of the cartridge being connected to the input part of the mixing coil group that the input part (2, 20) upstream of the mixing coil group (1, 19) into a larger input chamber (4, 10 A; 22) for the first component (A) with the larger discharge volume and a smaller input chamber (5, 10 B; 24) for the second component (B) with the smaller discharge volume and has first means (11, 27) for stowing the first component (A) and second means (12, 13; 29) for this first component ( A) in the input chamber (5, 10 B; 24) of the second component (B) and carry them. Mischer nach Anspruch 1, dadurch gekennzeichnet, dass der Boden (7) der grösseren Eingangskammer (4) eine Auslassöffnung (8) zur einen Hälfte (10 A) der ersten, zur Eingangskammer gehörenden Wendel (10) hin aufweist und diese Wendelhälfte durch einen Boden (11) abgeschlossen ist, und dass die Wand (9) zwischen den beiden Wendelhälften (10 A, 10 B) beim Boden (7) der Eingangskammer mindestens eine Durchgangsöffnung (12; 13) aufweist derart, dass beim Austragen die grössere Komponente (A) zuerst die eine Hälfte (10 A) der ersten Wendel auffüllt und über die Durchgangsöffnung(en) (12, 13) in die andere Hälfte (10 B) der ersten Wendel gelangt, sich dort mit der zweiten Komponente (B) vereinigt und diese mitnimmt.Mixer according to claim 1, characterized in that the base (7) of the larger input chamber (4) has an outlet opening (8) to one half (10 A) of the first coil (10) belonging to the input chamber and this coil half through a base (11) is complete, and that the wall (9) between the two coil halves (10 A, 10 B) at the bottom (7) of the input chamber has at least one through opening (12; 13) such that the larger component (A ) first fills one half (10 A) of the first coil and passes through the through opening (s) (12, 13) into the other half (10 B) of the first coil, merges there with the second component (B) and this takes along. Mischer nach Anspruch 2, dadurch gekennzeichnet, dass die Wand (9) zwischen den beiden Wendelhälften (10 A, 10 B) der ersten Wendel (10) entweder senkrecht zur Trennwand (6) zwischen beiden Eingangskammern (4, 5) angeordnet ist und eine Durchgangsöffnung (12) aufweist, oder parallel zur Trennwand (6) angeordnet ist und zwei Durchgangsöffnungen (13) aufweist.Mixer according to claim 2, characterized in that the wall (9) between the two coil halves (10 A, 10 B) the first coil (10) is either arranged perpendicular to the partition (6) between the two input chambers (4, 5) and has a through opening (12), or is arranged parallel to the partition (6) and has two through openings (13). Mischer nach Anspruch 1, dadurch gekennzeichnet, dass die von einem Boden (27) zur ersten Wendel (28) hin ganz abgeschlossene grössere Eingangskammer (22) in der Wand (30) zur kleineren Eingangskammer (24) eine Drosselöffnung (29) aufweist derart, dass beim Austragen die grössere Komponente (A) zuerst die grössere Eingangskammer (22) auffüllt und anschliessend über die Drosselöffnung (29) in die kleinere Eingangskammer (24) gelangt, sich dort mit der zweiten Komponente (B) vereinigt und diese mitnimmt.Mixer according to claim 1, characterized in that the larger inlet chamber (22) completely closed off from a base (27) towards the first helix (28) in the wall (30) towards the smaller inlet chamber (24) has a throttle opening (29) such that that when the larger component (A) is discharged, it fills up the larger input chamber (22) and then passes through the throttle opening (29) into the smaller input chamber (24), merges there with the second component (B) and takes it with it. Mischer nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Eingangskammern (4, 5; 22, 24) mindestens teilweise durch einen Deckflansch (16, 39) mit Eingangsöffnungen abgeschlossen sind.Mixer according to one of claims 1 to 4, characterized in that the inlet chambers (4, 5; 22, 24) are at least partially closed off by a cover flange (16, 39) with inlet openings. Mischer nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das Mischergehäuse (3, 21) eine Nase (14, 25) aufweist, die in die kleinere Eingangskammer (5, 24) hineinragt und deren Eingangsöffnung und/oder Volumen mitbestimmt.Mixer according to one of claims 1 to 5, characterized in that the mixer housing (3, 21) has a nose (14, 25) which projects into the smaller inlet chamber (5, 24) and also determines its inlet opening and / or volume. Mischer nach Anspruch 6, dadurch gekennzeichnet, dass die Seitenwände (15, 26) der kleineren Eingangskammer (5, 24) und/oder die Seitenwände der Nasen (14, 25) parallel oder konisch zueinander verlaufen.Mixer according to claim 6, characterized in that the side walls (15, 26) of the smaller inlet chamber (5, 24) and / or the side walls of the lugs (14, 25) run parallel or conically to one another. Mischer nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das Mischergehäuse (3, 21) einen Verbindungsflansch (32) zum Anflanschen an eine Halterung der Austragkartusche aufweist, mit einer Seite (35), die zwecks gerichtetem Anbringen eine Ausnehmung (36) aufweist, der eine entsprechende Zunge in der Flansch-Halterung an der Kartusche entspricht.Mixer according to one of claims 1 to 7, characterized in that the mixer housing (3, 21) has a connecting flange (32) for flanging to a holder of the discharge cartridge, with one side (35) for the purpose Directional attachment has a recess (36) which corresponds to a corresponding tongue in the flange holder on the cartridge. Mischer nach Anspruch 8, dadurch gekennzeichnet, dass der Verbindungsflansch an der rohrseitigen Oberfläche zusätzlich zu der Ausnehmung (36) einen Sicherheitsnocken (38), der in eine Aussparung eines Absatzes am Kartuschenauslass greift, aufweist, um den Flansch nur in einer einzigen Stellung in die Halterung an der Kartusche schieben zu können.Mixer according to claim 8, characterized in that the connecting flange on the pipe-side surface has, in addition to the recess (36), a safety cam (38) which engages in a recess in a shoulder at the cartridge outlet, in order to move the flange only in one position To be able to push the holder on the cartridge.
EP92810645A 1992-08-24 1992-08-24 Mixer for double dispensing cartridges Expired - Lifetime EP0584428B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP92810645A EP0584428B1 (en) 1992-08-24 1992-08-24 Mixer for double dispensing cartridges
DE59205705T DE59205705D1 (en) 1992-08-24 1992-08-24 Mixer for double discharge cartridges
US08/110,707 US5487606A (en) 1992-08-24 1993-08-23 Mixer for double cartridge dispenser
JP20970093A JP3219341B2 (en) 1992-08-24 1993-08-24 Mixer for mixing cartridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92810645A EP0584428B1 (en) 1992-08-24 1992-08-24 Mixer for double dispensing cartridges

Publications (2)

Publication Number Publication Date
EP0584428A1 true EP0584428A1 (en) 1994-03-02
EP0584428B1 EP0584428B1 (en) 1996-03-13

Family

ID=8211970

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92810645A Expired - Lifetime EP0584428B1 (en) 1992-08-24 1992-08-24 Mixer for double dispensing cartridges

Country Status (4)

Country Link
US (1) US5487606A (en)
EP (1) EP0584428B1 (en)
JP (1) JP3219341B2 (en)
DE (1) DE59205705D1 (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0664153A1 (en) * 1994-01-19 1995-07-26 Wilhelm A. Keller Mixer
EP0723807A3 (en) * 1995-01-16 1997-02-05 Wilhelm A Keller Mixer and multiple component dispensing device assembly and method for the aligned connection of the mixer to the multiple component dispensing device
EP0993863A3 (en) * 1998-10-16 2002-09-04 3M Espe Ag Mixer for multi-component pastes
DE10112904A1 (en) * 2001-03-15 2002-10-02 3M Espe Ag Dynamic mixer
DE10164385C1 (en) * 2001-12-28 2003-03-06 Kettenbach Gmbh & Co Kg Device for mixing two paste-like substances for dental work includes first channel extending through coupling section and having first and second parts with adjoining deflection section inbetween to ensure constant mixing ratio at outlet
WO2003041605A1 (en) 2001-11-16 2003-05-22 3M Espe Ag Device for storing, mixing and dispensing a free-flowing material
US7320541B2 (en) 2003-08-14 2008-01-22 3M Espe Ag Mixer element for a mixer for multi-component pastes, and mixer using the same
EP2058048A1 (en) * 2007-11-09 2009-05-13 GC Corporation Mixing elements for a static mixer
EP2599540A1 (en) 2011-11-29 2013-06-05 Sulzer Mixpac AG Mixing element for a static mixer
GB2500650A (en) * 2012-03-28 2013-10-02 Spinnaker Int Ltd Fluid Mixer in a Secure Container
WO2019020768A1 (en) 2017-07-28 2019-01-31 Kettenbach Gmbh & Co. Kg Mixer having compensation duct and/or holding chamber
DE102017117199A1 (en) 2017-07-28 2019-01-31 3lmed GmbH Mixer with compensation channel and / or stowage chamber
US10786790B2 (en) 2015-10-30 2020-09-29 Sulzer Mixpac Ag Multicomponent static mixer for mixing components
US11020716B2 (en) 2015-08-28 2021-06-01 Sulzer Mixpac Ag Static mixer, method of assembling a static mixer and dispensing apparatus

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0885651B1 (en) * 1997-06-18 2002-11-06 Wilhelm A. Keller Mixer
EP1083005A3 (en) * 1999-08-11 2004-12-15 Tah Industries, Inc. A static mixer nozzle and attachment accessory configuration
DE19947331C2 (en) 1999-10-01 2002-02-28 3M Espe Ag Dynamic mixer
US6394314B1 (en) * 1999-10-12 2002-05-28 Discus Dental Impressions, Inc. Double-barreled syringe with detachable locking mixing tip
DE10019893C2 (en) * 2000-04-20 2003-05-28 3M Espe Ag Device in the form of a dynamic mixer or a cartridge front and their use
US6739519B2 (en) * 2002-07-31 2004-05-25 Hewlett-Packard Development Company, Lp. Plurality of barrier layers
ITMO20020321A1 (en) * 2002-11-06 2004-05-07 Sidam Di Azzolini Graziano E C S A S GROUP FOR THE MIXING OF INSERIBLE FLUIDS ALONG LINES
CA2461269A1 (en) * 2004-03-16 2005-09-16 Plastiques Gyf Ltee Bladeless mixer
EP1588779A1 (en) * 2004-04-19 2005-10-26 3M Espe AG Dynamic mixer
EP1640060A1 (en) 2004-09-22 2006-03-29 3M Espe Ag Mixer for multi-component pastes, kit, and method of mixing paste components
US8322909B2 (en) 2004-09-22 2012-12-04 3M Deutschland Gmbh Mixer for multi-component pastes, kit, and method of mixing paste components
JP2007044064A (en) * 2005-08-05 2007-02-22 Gc Corp Nozzle for extruding dental composition
US7771110B2 (en) * 2007-09-08 2010-08-10 Pac-dent International Inc. Twisted static paste mixer with a dynamic premixing chamber
WO2011134059A1 (en) 2010-04-28 2011-11-03 Integra Adhesives Inc. Apparatus for mixing and dispensing multiple flowable components
WO2012116873A1 (en) 2011-03-03 2012-09-07 Sulzer Mixpac Ag Static mixer for a multicomponent dispensing appliance
IN2014CN02197A (en) 2011-08-24 2015-05-29 Kettenbach Gmbh & Co Kg
DE102012003390B4 (en) 2011-08-24 2018-04-26 Kettenbach Gmbh & Co. Kg Cartridge system and static mixer for this
US8919609B2 (en) * 2012-01-10 2014-12-30 Pac-Dent International, Inc. Dental mixing device having an auto-aligning tip mixing tip
US8960501B2 (en) * 2012-10-23 2015-02-24 Nordson Corporation Dispensing assembly and method for dispensing a mixed fluid
US10245565B2 (en) 2015-08-07 2019-04-02 Nordson Corporation Double wall flow shifter baffles and associated static mixer and methods of mixing
US10363526B2 (en) 2015-08-07 2019-07-30 Nordson Corporation Entry mixing elements and related static mixers and methods of mixing
CN108543434B (en) * 2018-06-20 2023-09-26 南京工业职业技术学院 Mixing device for spiral cutting fluid multicomponent on-line mixing mechanism
EP3733271B1 (en) * 2019-04-30 2023-04-05 Ritter GmbH Mixer with rest reservoirs
EP4000749A1 (en) 2020-11-11 2022-05-25 medmix Switzerland AG An improved static mixing tip
CN116438016A (en) 2020-11-11 2023-07-14 迈德米斯瑞士股份公司 Improved static mixing tip

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3570719A (en) * 1968-07-02 1971-03-16 Louis Schiff Reagent mixing and dispensing apparatus
FR2558209A1 (en) * 1984-01-13 1985-07-19 Hilti Ag METHOD OF LAYING A FIXING ELEMENT
EP0472448A2 (en) * 1990-08-23 1992-02-26 Bostik Limited Process and device for combining two pasty materials

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2816518A (en) * 1956-01-10 1957-12-17 Daggett Chocolate Company Ice cream blending apparatus
US4846373A (en) * 1982-09-07 1989-07-11 Penn Laurence R Apparatus for proportioning or for proportioning and mixing plural different fluid compositions
US4538920A (en) * 1983-03-03 1985-09-03 Minnesota Mining And Manufacturing Company Static mixing device
DE3760707D1 (en) * 1986-02-10 1989-11-16 Wilhelm A Keller Two-component application device
ES2016312B3 (en) * 1986-09-14 1990-11-01 Wilhelm A Keller DOUBLE DISTRIBUTION CARTRIDGE FOR MASSES OF TWO COMPONENTS.
US4767026A (en) * 1987-01-16 1988-08-30 Keller Wilhelm A Dispensing and mixing apparatus
US5033650A (en) * 1987-03-09 1991-07-23 Laurence Colin Multiple barrel dispensing device
US4995540A (en) * 1987-12-07 1991-02-26 Laurence Colin Unit dosage dispenser for dental impression materials
US4771919A (en) * 1987-10-28 1988-09-20 Illinois Tool Works Inc. Dispensing device for multiple components
US4869400A (en) * 1988-02-29 1989-09-26 Richard Jacobs Composition dispensing system
DE8900469U1 (en) * 1989-01-17 1990-05-23 Espe Stiftung & Co Produktions- Und Vertriebs Kg, 8031 Seefeld, De
US5249709A (en) * 1989-10-16 1993-10-05 Plas-Pak Industries, Inc. Cartridge system for dispensing predetermined ratios of semi-liquid materials

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3570719A (en) * 1968-07-02 1971-03-16 Louis Schiff Reagent mixing and dispensing apparatus
FR2558209A1 (en) * 1984-01-13 1985-07-19 Hilti Ag METHOD OF LAYING A FIXING ELEMENT
EP0472448A2 (en) * 1990-08-23 1992-02-26 Bostik Limited Process and device for combining two pasty materials

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5498078A (en) * 1994-01-19 1996-03-12 Keller; Wilhelm A. Mixer for double dispensing cartridges or dispensing appliances
EP0664153A1 (en) * 1994-01-19 1995-07-26 Wilhelm A. Keller Mixer
EP0723807A3 (en) * 1995-01-16 1997-02-05 Wilhelm A Keller Mixer and multiple component dispensing device assembly and method for the aligned connection of the mixer to the multiple component dispensing device
EP0993863A3 (en) * 1998-10-16 2002-09-04 3M Espe Ag Mixer for multi-component pastes
EP1402940A2 (en) * 1998-10-16 2004-03-31 3M Espe AG Mixer for multi-component pastes
EP1402940A3 (en) * 1998-10-16 2004-04-28 3M Espe AG Mixer for multi-component pastes
DE10112904B4 (en) * 2001-03-15 2004-07-22 3M Espe Ag Dynamic mixer and method for mixing at least two paste components
DE10112904A1 (en) * 2001-03-15 2002-10-02 3M Espe Ag Dynamic mixer
DE10112904C5 (en) * 2001-03-15 2010-04-22 3M Espe Ag Dynamic mixer and method for mixing at least two paste components
US7674033B2 (en) 2001-03-15 2010-03-09 3M Espe Ag Dynamic mixer
US7287898B2 (en) 2001-03-15 2007-10-30 3M Espe Ag Dynamic mixer
US7806297B2 (en) 2001-11-16 2010-10-05 3M Innovative Properties Company Device for storing, mixing and dispensing a free-flowing material
DE10156075B4 (en) * 2001-11-16 2004-04-15 3M Espe Ag Device and method for storing, mixing and dispensing a flowable mass
DE10156075A1 (en) * 2001-11-16 2003-06-05 3M Espe Ag Device for storing, mixing and dispensing a flowable mass
WO2003041605A1 (en) 2001-11-16 2003-05-22 3M Espe Ag Device for storing, mixing and dispensing a free-flowing material
DE10164385C1 (en) * 2001-12-28 2003-03-06 Kettenbach Gmbh & Co Kg Device for mixing two paste-like substances for dental work includes first channel extending through coupling section and having first and second parts with adjoining deflection section inbetween to ensure constant mixing ratio at outlet
US6837612B2 (en) 2001-12-28 2005-01-04 Kettenbach Gmbh & Co. Kg Device for mixing two paste-like compounds, in particular for mixing a dental-molding compound with a catalyzing compound
US7320541B2 (en) 2003-08-14 2008-01-22 3M Espe Ag Mixer element for a mixer for multi-component pastes, and mixer using the same
EP2058048A1 (en) * 2007-11-09 2009-05-13 GC Corporation Mixing elements for a static mixer
EP2599540A1 (en) 2011-11-29 2013-06-05 Sulzer Mixpac AG Mixing element for a static mixer
US10293311B2 (en) 2011-11-29 2019-05-21 Sulzer Mixpac Ag Mixing element for a static mixer
GB2500650A (en) * 2012-03-28 2013-10-02 Spinnaker Int Ltd Fluid Mixer in a Secure Container
US11020716B2 (en) 2015-08-28 2021-06-01 Sulzer Mixpac Ag Static mixer, method of assembling a static mixer and dispensing apparatus
US10786790B2 (en) 2015-10-30 2020-09-29 Sulzer Mixpac Ag Multicomponent static mixer for mixing components
WO2019020768A1 (en) 2017-07-28 2019-01-31 Kettenbach Gmbh & Co. Kg Mixer having compensation duct and/or holding chamber
DE102017117199A1 (en) 2017-07-28 2019-01-31 3lmed GmbH Mixer with compensation channel and / or stowage chamber
US11717794B2 (en) 2017-07-28 2023-08-08 3lmed GmbH Mixer

Also Published As

Publication number Publication date
EP0584428B1 (en) 1996-03-13
JP3219341B2 (en) 2001-10-15
JPH07785A (en) 1995-01-06
US5487606A (en) 1996-01-30
DE59205705D1 (en) 1996-04-18

Similar Documents

Publication Publication Date Title
EP0584428B1 (en) Mixer for double dispensing cartridges
EP0664153B1 (en) Mixer
EP1426099B1 (en) Static mixer and method
DE602005001823T2 (en) Two-piece liquid cartridge for storing and dispensing liquids in unequal proportions
EP0294672A1 (en) Double cartridge for a two-component compound
EP0993863A2 (en) Mixer for multi-component pastes
DE3420290C1 (en) Static mixing part
WO2003055582A1 (en) Device for mixing two pasty materials, in particular for mixing a dental impression material with a catalyst material
DE3838530A1 (en) Packaging for two-component compounds
DE3337895C2 (en)
DE102004009424A1 (en) Two or more chamber tube
EP0519967B1 (en) Applicator head for media
DE3420324A1 (en) Dispensing device for a plurality of flowable material components
DE10347938A1 (en) Head part for a multi-compartment hose bag
DE3733239A1 (en) LIQUID VALVE AND FUEL DOSING DEVICE
EP1002568B1 (en) Device for mixing multi-component masses, especially for dental use
DE3420323A1 (en) Dispensing device for a plurality of flowable material components
DE2829216A1 (en) Composite heating medium distributor - has branch pipe fittings with additional passage in some separate from central one
CH679377A5 (en)
DE102012003390B4 (en) Cartridge system and static mixer for this
EP3199248A1 (en) Bundle and separating element
WO2019020764A1 (en) Mixer
EP0896833B1 (en) Device for homogenizing flowable materials
DE102017117198A1 (en) mixer
EP3971106B1 (en) Two component cartridge

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

RBV Designated contracting states (corrected)

Designated state(s): CH DE FR GB IT LI

17P Request for examination filed

Effective date: 19940901

17Q First examination report despatched

Effective date: 19950111

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO MILANO S.P.A.

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI

REF Corresponds to:

Ref document number: 59205705

Country of ref document: DE

Date of ref document: 19960418

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19960606

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: MIXPAC SYSTEMS AG; GRUNDSTRASSE 12; 6343 ROTKREUZ (CH)

Free format text: FORMER OWNER: WILHELM A. KELLER

Ref country code: CH

Ref legal event code: NV

Representative=s name: AMMANN PATENTANWAELTE AG BERN

Ref country code: CH

Ref legal event code: EP

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20110824

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20110823

Year of fee payment: 20

Ref country code: GB

Payment date: 20110819

Year of fee payment: 20

Ref country code: FR

Payment date: 20110901

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20110824

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59205705

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59205705

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20120823

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20120825

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20120823