Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
  • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
  • B01F35/50—Mixing receptacles
  • B01F35/52—Receptacles with two or more compartments
  • B01F35/522—Receptacles with two or more compartments comprising compartments keeping the materials to be mixed separated until the mixing is initiated
• • 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
  • B05C17/00506—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container
  • B05C17/00513—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container of the thread type
• • 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
• • 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
  • 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
  • B01F33/50112—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 of the syringe or cartridge type
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
  • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
  • B01F35/56—General build-up of the mixers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
  • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
  • B01F35/71—Feed mechanisms
  • B01F35/711—Feed mechanisms for feeding a mixture of components, i.e. solids in liquid, solids in a gas stream
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
  • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
  • B01F35/71—Feed mechanisms
  • B01F35/714—Feed mechanisms for feeding predetermined amounts
• • 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
  • 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
  • B05C17/00576—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 characterised by the construction of a piston as pressure exerting means, or of the co-operating container
  • B05C17/00579—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 characterised by the construction of a piston as pressure exerting means, or of the co-operating container comprising means for allowing entrapped air to escape to the atmosphere
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
  • F17D1/00—Pipe-line systems
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T137/00—Fluid handling
  • Y10T137/9029—With coupling

Definitions

• the invention relates to a cartridge system with two containers, each having an outlet port and a joint opening provided with a positioning opening for a mixer, and with a static mixer with inlet nozzle and a positioning element. Furthermore, the invention relates to a static mixer, which is particularly suitable for use in such a cartridge system.
• Cartridge systems of the type mentioned in the introduction are known from WO 201 1/041917 and from EP 0 723 807 B1.
• Such known cartridge systems usually have a bayonet connection for the connection between the static mixer and the containers of the cartridge.
• An important aspect in connection between mixer and cartridge is often that the mixer should be placed in a certain position on the cartridge, so that the inlet and outlet ports meet, with a placement of the mixer is to be avoided in the wrong orientation. It is therefore known to provide so-called coding elements, which prevent a firm connection between the mixer and the cartridge, unless the mixer is placed in the correct orientation on the cartridge.
• the known cartridge systems can not reliably ensure that any contact between the inlet and outlet ports in the wrong orientation of the mixer relative to the cartridge is avoided.
• a mixer which can be attached by means of an adapter to a cartridge.
• the adapter is provided for alignment relative to the cartridge with a pin-like projection which can engage in a corresponding opening on the cartridge housing.
• the object of the present invention is to provide a cartridge system and a static mixer therefor, in which cross-contamination can not occur.
• Another aspect of the present invention is to improve the flow behavior within the mixer and in a simple and reliable connection between the mixer and cartridge. This object is achieved with a cartridge system with the features of claim 1.
• the connection between the two containers (cartridge) and the mixer is preferably carried out via a threaded connection, wherein the connection region of the container has a surrounding the outlet nozzle ring with an internal thread, while the mixer is provided with an external thread, for example, on the outside of the mixer housing is provided.
• the length of the inlet stub, the outlet stub and the positioning element and the position of the positioning opening are matched to one another such that when the mixer is placed on the container, the positioning element engages in the positioning opening before the internal thread and the external thread intermesh.
• the internal thread and the external thread engage one another before the inlet stub and the outlet stub can touch.
• the positioning element which may be designed, for example, as a web or a tongue protrudes in a preferred embodiment in the direction of the cartridge beyond the inlet nozzle of the mixer.
• the positioning member first engages a slot or the like opening on the cartridge before the threads of the female threaded collar of the cartridge and the external thread of the mixer can engage each other.
• the inlet ports of the mixer can not touch the outlet of the cartridge until the threads of the cartridge and the mixer interlock, it is ensured that the first orientation of the mixer relative to the cartridge determined by the engagement of the positioning element in the corresponding positioning is before the other components can contact each other.
• the positioning element can facilitate both the approach of the mixer to the cartridge as well as ensure a clear alignment and assignment of the mixer to the cartridge. This has the advantage that a simple and intuitive merging of mixer and cartridge with a greater degree of freedom compared to known bayonet connections is possible.
• the positioning element according to the invention differs from a coding element known from EP 0 723 807 B1, inter alia, in that the mixer is guided in the cartridge and brought into the desired orientation, even before the actual connection of the mixer to the cartridge begins , Furthermore, the positioning element ensures from the beginning of the connection process to the correct orientation of the inlets and outlets to each other, without that they could come into contact with each other in a different orientation.
• the threaded connection also ensures a particularly secure and firm locking of the mixer to the cartridge, whereby this lock is easy to actively release.
• the positioning tongue is funnel-shaped in the opening slidably guided when the outlet nozzle with the inlet nozzle are sealingly pushed together.
• the positioning tongue is in contact with the opening and aligns both the inlet and outlet ports to one another and the threads to one another. This is particularly relevant in a frequently occurring in practice mixer change to a cartridge inserted in a dispensing device, since the inlet and outlet are hidden here for a user in the rule, so it is important that the nozzle and thread by itself align.
• the cartridge system according to the invention is suitable both for components which are to be mixed with one another in a mixing ratio of 1: 1 and for mixing ratios which are different from 1: 1.
• the inner diameters of the outlet channels of the cartridge are preferably chosen to be the same size for both components, whereby a volume of the outlet channels corresponding to the desired metering ratios can be adjusted by, for example, cylindrical cores in the interior of the outlet channels.
• a cross-sectional taper can be provided in at least one of the two inlet ports of the mixer be.
• This (internal) cross-sectional taper can be designed as an insert or as a conical channel, for example, so that for 1: 1 different mixing ratios, the right amount of components enters the mixer.
• a static mixer according to the invention has for this purpose a mixing chamber which extends parallel to a longitudinal axis of the mixer and in which a mixing element is provided, and a coupling section which is suitable for connecting the mixer to the cartridge.
• the coupling portion may have two in each case via channels with the mixing chamber in flow connection standing inlets and a positioning element.
• the coupling portion additionally has an external thread, so that the coupling portion can be formed by different components of the mixer, in particular by the housing and an insert.
• the two inlets are formed as spaced-apart nozzle, between which a partition wall is provided.
• the positioning element preferably protrudes in the direction of the longitudinal axis via the two inlets of the mixer.
• the positioning element protrudes beyond a possibly provided partition and beyond the housing of the mixer, so that the positioning element must first be inserted into the corresponding opening of the cartridge before other components of the mixer come into contact with the cartridge.
• a reservoir for mixing ratios other than 1: 1, is associated with a reservoir, which is disposed between the first inlet and the mixing space, and a reservoir Cross-sectional area which is greater than the cross-sectional area of the channel portion between the first inlet and the reservoir chamber.
• the cross-sectional area of the inlet channel of the mixer is smaller than the cross-sectional area of the reservoir chamber, so that a tendency-prone component can be absorbed in the reservoir chamber, whereby this component delays or only a subsequent portion of this component passes into the actual mixing chamber.
• the flow conditions within the static mixer have been found to be particularly favorable when the cross-sectional area of the channel portion located between the first inlet and the reservoir chamber is between about 80% and about 150% of the cross-sectional area of an opening or channel portion into the mixing space empties.
• This extensive omission of cross-sectional tapers downstream of the reservoir chamber it is also possible to apply more viscous components with comparatively low discharge forces.
• the channel section located between the first inlet and the reservoir chamber faces in the axial direction an opening or a (further) channel section which opens into the mixing chamber.
• the elimination of deflections or their minimization in the channel located between the inlet and the mixing chamber minimizes the flow resistance.
• the channel section located between the first inlet and the reservoir chamber may be arranged offset in the axial direction to an opening or a (further) channel section which opens into the mixing chamber.
• the channel connecting the second inlet to the mixing space connects, as directly as possible passes into the mixing chamber, said channel can be passed to the reservoir chamber or passed therethrough.
• the cross-sectional area of this second channel is smaller than that of the channel portion between the first inlet and the reservoir chamber.
• the partition wall provided between the sockets of the inlets extends beyond these sockets in the direction of the cartridge. Even if components are dispensed with components prior to the start of the first mixing operation at the outlet ports of the cartridges, they can not pollute or contaminate the inlet ports of the mixer because of the partition wall. The same applies if an already used mixer removed and a new mixer is placed on the cartridge. Regardless of the positioning element also contributes to the partition that the mixer can not be placed in any position on the cartridge.
• the mixer consists of exactly two components, namely a housing and an insert, which is axially secured and rotatably received relative to the housing in this.
• the housing forms the, in particular, cylindrical mixing space and has an area widening in relation to the mixing space, which area forms the coupling section.
• This widened region of the housing can be provided with the external thread, via which the mixer can be firmly connected to the cartridge. Due to the rotatability of the insert relative to the housing, a locking of the mixer to the cartridge can take place by screwing on, even if the insert of the mixer is previously aligned relative to the cartridge by means of the positioning element.
• This also allows that while unscrewing the Mixer on the cartridge, the inlet ports of the mixer and the outlet of the cartridge interlock.
• the inlet ports of the mixer are preferably inserted into the outlet of the cartridge.
• the seal between the two components of the mixer can be axial and / or radial.
• the axial seal with two sealing regions of the housing or of the insert lying successively in the longitudinal direction of the mixer has the advantage that the sealing effect when tightening the threaded connection to the cartridge is improved.
• the use of the mixer can thus initially be freely rotatable in the housing and the sealing function only (fully) occurs after the assembly of the mixer to the cartridge.
• the radial seal has the advantage that for this purpose e.g. a radial groove and a circumferential radial web can be used, which can be provided for freely rotatable connection of the two components of the mixer.
• the unscrewing of the mixer therefore requires a relative rotational movement between the use of the mixer and the housing of the mixer, such a relative movement in the cured state of the components is difficult, when the mixer element, for example a mixing helix, is formed integrally with the insert.
• the mixer has the mixing element, the two inlets and the positioning element as a one-piece component, wherein the mixer element can be separated via a predetermined breaking point of the two inlets and the positioning element.
• FIG. 1 shows a longitudinal section through a cartridge system after a first
• FIG. 2 is a perspective view of the cartridge system of FIG. 1,
• FIG. 3 is a perspective view of a detail of the cartridge system of Fig. 1,
• FIG. 4 in perspective view of the components of an inventive
• FIG. 5 in a partially sectioned view of a mixer according to the invention for the cartridge system of FIG. 1 according to a second embodiment
• FIG. 6 is a perspective view of the components of the mixer of FIG. 5,
• 7 is a longitudinal section of a detail of the cartridge system
• 8 is a sectional view of the cartridge system
• FIG. 10 is a perspective view of the closure element of FIG. 9,
• FIG. 12 is a perspective view of the rotary closure of FIG. 1 1,
• FIG. 13 is a perspective view of the dispensing piston of FIG. 1 1,
• Fig. 14 is a perspective view of the components of another
• Fig. 15 in a sectional view of the open dispensing piston of Fig. 14, and
• FIG. 16 is a sectional view of the closed dispensing piston of FIG. 14th
• 17 is a perspective view of a cartridge system for a
• the cartridge system shown in FIGS. 1 to 3 consists essentially of a mixer 1 and a double cartridge, which is formed by two containers 2a, 2b, which are integrally connected to each other.
• a dispensing piston 3 a and 3 b is respectively provided for discharging the components received in the containers.
• the dispensing piston can be moved via a device, not shown, within the container become.
• the containers are each provided with an outlet nozzle 4a, 4b.
• the component received in the higher container (2a in Fig. 1) can flow more quickly into the mixer 1, because corresponding channel 4a is shorter.
• the outlet 4 a, 4 b are surrounded by a provided on the end-side end wall of the double cartridge ring 5, which is on his
• outlet nozzles 4a, 4b protrude beyond the ring 5.
• the outlet ports 4a, 4b are spaced apart, so that between them a recognizable in Fig. 1 gap or free space remains.
• a flange or the like On the side facing away from the ring 5 of the cartridge, a flange or the like. Be provided to secure the cartridge in a suitable dispensing device.
• the upper end wall shown in FIGS. 1 and 2 extends partly beyond the two cylindrical containers 2 a, 2 b, so that the ring 5 is closed by a bottom, which of the two Outlet nozzle 4a, 4b is broken and also has a positioning opening 7, which is in the embodiment shown in Fig. 3, for example. Trapezoidal. Alternatively, the cross section may also be rectangular or triangular.
• the mixer 1 is a so-called static mixer, ie it has no actively driven mixer element.
• the mixer 1 is constructed in each case from two components, namely a mixer housing 8 and an insert 9, which in the housing 8 in axial Direction fixed, but is held rotatable. This can be done for example by means of a circumferential groove in the housing 8, in which a bead-like projection of the insert 9 engages, as indicated in Fig. 5.
• the housing 8 of the mixer 1 consists of an elongated cylindrical tube, which can taper at its outlet end 10. This elongated cylindrical portion of the housing 8 forms the actual mixing chamber in its interior.
• the outlet end 10 opposite end of the housing 8 is widened with respect to this cylindrical portion and formed as a coupling portion, which serves for attachment of the mixer 1 to the cartridge (container 2a, 2b).
• the coupling portion is provided with an external thread 1 1, which is formed according to the embodiment of FIGS. 2 to 4 by a plurality of threaded portions, while in the embodiment of FIGS. 5 and 6, an overlapping thread is provided.
• a profiled area may be provided adjacent to the thread 1 1, which facilitates the operation of the mixer 1, in particular the screwing of the mixer 1 in the ring of the cartridge.
• the insert 9 has a plate 12, on which a mixer element 13, for example a mixing helix, as well as inlet ports 14a, 14b are formed.
• the size of the inlet pipe 14a, 14b is sized so that they can be inserted into the outlet 4 a and 4 b of the cartridge.
• the inlet ports 14a, 14b are spaced from each other, wherein in addition between the inlet port, a partition wall 15 is provided which protrudes from the plate 12 further than the inlet ports 14a, 14b.
• the partition wall 15 can thus engage in the gap or clearance between the outlet stubs 4a, 4b and thus prevents, for example, components from the outlet stub 4a from reaching the inlet stub 14b or vice versa.
• a positioning element 16 which is elongated with respect to this is formed, which has an approximately triangular or, for example, trapezoidal cross-section and thus can be inserted with a precise fit into the positioning opening 7 of the cartridge.
• the positioning element 16 not only projects beyond the dividing wall 15 and the inlet ports 14a, 14b, but also protrudes beyond the housing 8 of the mixer 1 in the direction of the cartridge. This has the effect that, when the mixer 1 is placed on the cartridge, the positioning element 16 first enters the space delimiting the ring 5 without the remaining components of the mixer 1 touching the cartridge or its outlet nozzle.
• the mixer 1 can be fitted far enough on the cartridge that the thread 1 1 of the mixer engages in the thread 6 of the cartridge.
• the outlet ports 4a, 4b and the inlet ports 14a, 14b then come into engagement with each other.
• the positioning element 16 occurs with its free end through the opening 7, so that the exact alignment of the mixer can also be controlled from the outside.
• the free end of the positioning element 16 may be colored or marked in another way.
• the positioning element 16 can be beveled or tapered at its free end, as shown.
• elements may be provided in the bottom of the ring 6, ribs or the like, which guide the positioning element 16 in the direction of the positioning opening 7.
• the positioning member 16 are formed on the mixer 1 and the corresponding opening 7 on the cartridge.
• the advantages of the invention also occur when the Positioning element on the cartridge and the opening are formed on the mixer.
• a further partition wall 17 may be provided which is aligned in the illustrated embodiment perpendicular to the first partition wall 15, so that the partition wall 17, the inflowing through the inlet ports 14a, 14b components each into two streams divides.
• the mixer element 13 is connected in a preferred embodiment via a predetermined breaking point with the partition wall 17. This is particularly important in used mixers, in the mixing chamber of the 2-component material is cured and remain as usual as closure until the next application on the cartridge.
• a cylindrical channel 18 extends in the direction of the mixing chamber.
• the partition 17 may partially extend into the channel 18 and / or the channel portion 19a.
• the inlet nozzle 14b for the larger volume component from the container 2b the volume downstream of the plate 12 widens to a reservoir chamber having a larger cross-sectional area than the corresponding inlet port 14b.
• the inlet nozzle 14b forms a first channel section 19a and the reservoir chamber 19b an enlarged channel section. Downstream of the reservoir chamber 19b can an opening 19c or another channel section may be provided which opens into the mixing space.
• the size of the reservoir chamber 19b can be varied variably by the position of a wall 20, which extends perpendicular to the partition 17 in the illustrated embodiment. As far as the entering through the inlet port 14b component tends to advance, a leading portion of this component can first be collected in the reservoir chamber 19b before the further inflowing component passes together with the other component in the mixing chamber. As can be seen from FIG. 5, the component entering through the inlet connection 14b can enter the mixing chamber without further deflection from the reservoir chamber 19b. This minimizes flow resistance.
• the static mixer 1 shown in Figs. 4 to 6 has some advantages over known static mixers. Thus, first by the threaded connection 6, 1 1 with the cartridge a secure and secure locking possible.
• the two-part design of the mixer 1 also brings cost advantages.
• the free rotation of the insert 9 in the mixer housing 8 allows a simple and cost-effective installation, in which, unlike in known mixers, it is not necessary to ensure that the components are aligned with one another.
• the partition wall 15 and the outlet 5 a, 4 b protruding from the ring 5 also largely prevent soiling or cross contamination.
• a mixer for the mixing ratio 1: 1 of the components can not be placed on a cartridge for a mixing ratio of, for example, 1:10, and vice versa.
• a cross-sectional taper is further formed in the inlet connection 14a, taking into account the mixing ratio of the components which is different from 1: 1 for the same outside diameter of the two inlet connections.
• a cone seal in the mixer between the inside of the housing 8 and the outside of the insert 9 is provided.
• a latching connection is provided with a circumferential groove 21 in the housing and a circumferential ridge 22 in the insert.
• the seal has corresponding conical sealing surfaces 23, 24, which are formed in FIG. 7 above the groove or the web on the inside of the housing 8 and the outside of the insert 9.
• Fig. 8 is another sectional view of the cartridge system showing the case that a user attempts to set the mixer incorrectly (tilted) on the cartridge.
• An important feature of the cartridge system according to the invention is the avoidance of unwanted carry-over of catalyst component and base component and could lead to the respective other paste component and their contamination. This could be due to accidental, unwanted insertion of the positioning tab first in one, then in the other channel or by touching the inlet and outlet channels of the cartridge and mixer in the unfavorable tilted placement in the wrong position, or analogous to the tilted replacement of a sealing plug.
• the positioning tongue on the mixer (or on a closure plug) is designed so that it can not be inserted into the outlet channels.
• the dividing wall is dimensioned such that it allows only small tilt angles between the outlet channels of the cartridge. If necessary, contours can be attached to the outlet channels of the cartridge, which further limit the play for the partition used with regard to unfavorable tilt angles.
• a closure plug may have an additional sleeve-shaped collar (at the point where the thread is located at the mixer) and thus also avoids unfavorable tilt angles.
• the invention also relates to a one-piece closure element shown in FIGS. 9 and 10, which can be placed on the double-cartridge container 2a, 2b instead of the mixer 1.
• a one-piece closure element shown in FIGS. 9 and 10
• the plugs are each connected via a web 22, which acts as a torsion spring, to a sleeve which can be inserted into the collar of the outlet end of the double cartridge.
• An extended edge of the sleeve which is provided with a knurling, rests on the front side of the collar when the closure element is sealingly placed on the double cartridge.
• the closure element can be secured in the collar (ring 5) by means of latching hooks 23, which engage behind the thread segments of the internal thread 6 and thus lock the closure element on the double cartridge.
• latching hooks 23 engage behind the thread segments of the internal thread 6 and thus lock the closure element on the double cartridge.
• the sleeve can be twisted slightly with the knurling, wherein the web 22 twists, since the plug 21 initially stuck in the outlet 4 a and 4 b.
• This twisting of the web 22 acting as a torsion element makes it possible for the latching hooks to be disengaged from the thread segments of the internal thread 6, so that the closure element can be removed from the double cartridge.
• the closure plug similar to the mixer, has a positioning tab 16 which may be configured to be visible to the user after passing through a corresponding opening in the cartridge. This has the advantage of visual visual inspection as to whether the closure plug and / or the positioning tab is properly inserted.
• the torsion element of the sealing plug can have a radial S-shape in order to secure a corresponding rotational path even with small sealing plug diameters.
• the sealing plug shown in Fig. 10 is also equipped with a partition wall 17, which is similar to the mixer between the plug 21.
• the partition wall 17 is provided with constrictions in the vicinity of the plugs 21, whereby the placement of the closure is facilitated without tilting.
• a dispensing piston is shown with Dehver gleich, which can be used in a cartridge system according to the invention for dispensing the components from the containers.
• the piston is hereby provided with a vent, which allows air from the respective Tank leaks when it is filled with the component and the delivery piston is used. Since some substances tend to react with the remaining after filling the cartridge and the insertion of the piston in the cartridge residual air, it is anxious to let the residual air escape as completely as possible from the container. Any remaining in the container residual air between the piston and the substance located in the cartridge is also considered to be disadvantageous because the residual air forms a compressible pad that complicates the accuracy of the dosage when applying the substance from the cartridge.
• the piston 100 shown in FIGS. 1 to 13 has a main body 101, which has a side wall provided with sealing means and an end wall, in which a vent opening 102 is provided.
• This vent opening 102 extends through the entire base body, so that an air exchange between the side of the end wall (located in the conveying direction) and the back of the piston 100 is possible.
• a closure element 103 is rotatably mounted in the ventilation opening 102, wherein a ventilation channel can be opened or closed by a relative rotation of the closure element 103 in the ventilation opening 102. In other words, it is possible to establish or prevent the flow connection between the downstream side of the piston 100 and the rear side of the piston with a rotation of the closure element 103.
• a circumferential projection 104 is formed on the inner surface of the vent opening 102, which engages in a corresponding groove 105 in the closure element 103 in order to lock them together.
• Both the projection 104 and the groove 105 are each provided with openings, which can be brought into coverage to release a vent channel, or be brought out of coverage can to close the vent channel.
• the opening extends through the groove 105 perpendicular thereto, which may be formed slightly deeper than the opening, so that the projection 104 can securely close the openings.
• FIGS. 14 to 16 An alternative embodiment of a dispensing piston with a dew closure is shown in FIGS. 14 to 16, which in turn consists of a main body 101 and a closure element 103. In addition, a sealing ring 107 is provided. In the embodiment of FIGS.
• FIGS. 15 and 16 show how the vent opening 102 opens (FIG. 15) or closes (FIG. 16) depending on the rotational position of the closure element 103 in the base body 101.
• FIG. 1 A cartridge for a mixing ratio of components of 1: 1 is shown in FIG.
• the two containers 2a, 2b have the same dimensions. LIST OF REFERENCE NUMBERS

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• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Dispersion Chemistry (AREA)
• General Engineering & Computer Science (AREA)
• Mixers Of The Rotary Stirring Type (AREA)
• Package Specialized In Special Use (AREA)
• Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
• Accessories For Mixers (AREA)

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• 2012
  • 2012-08-10 WO PCT/EP2012/065689 patent/WO2013026717A1/de not_active Ceased
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  • 2012-08-10 ES ES12744011T patent/ES2714273T3/es active Active
  • 2012-08-10 BR BR112014004109-1A patent/BR112014004109B1/pt active IP Right Grant
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• 2017
  • 2017-02-23 US US15/440,664 patent/US9782737B2/en active Active

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