EP3774580A1 - Mehrkammerkartusche - Google Patents
MehrkammerkartuscheInfo
- Publication number
- EP3774580A1 EP3774580A1 EP19715445.3A EP19715445A EP3774580A1 EP 3774580 A1 EP3774580 A1 EP 3774580A1 EP 19715445 A EP19715445 A EP 19715445A EP 3774580 A1 EP3774580 A1 EP 3774580A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- chamber
- telescopic
- segments
- cylinder segments
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/32—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging two or more different materials which must be maintained separate prior to use in admixture
- B65D81/325—Containers having parallel or coaxial compartments, provided with a piston or a movable bottom for discharging contents
-
- 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
- B05C17/00559—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 the different components being stored in coaxial chambers
Definitions
- the invention relates to a multi-chamber cartridge having the features of the preamble of claim 1.
- the European patent application EP 2 202 177 A1 discloses a two-chamber cartridge for a separate storage and common pressing of two flowable, in particular pasty masses.
- the two compounds are, for example, two components which react with one another, for example a hardener and a binder of a resin.
- the two masses are pressed out of the two-chamber cartridge by a so-called static mixer, which mixes them homogeneously, so that they react with each other and harden.
- the well-known two-chamber cartridge has a cylindrical outer chamber for one of the two masses and a telescopic cylinder for the other mass, which is arranged coaxially in the outer chamber and pushed together during the pressing of the outer chamber and thereby also pressed out.
- the two-chamber cartridge has an outlet at an end, here referred to as the front end, through which the masses are squeezed out of the outer chamber and out of the telescopic cylinder and flow out through a static mixer placed on the outlet.
- the known two-chamber cartridge is pressed with a conventional cartridge press for single-chamber cartridges, which has a receptacle for inserting the two-chamber cartridge and an obliquely, almost transversely to one side protruding handle and a lever. Repeated pulling of the lever to the handle, a punch of the cartridge press is gradually shifted and it moves as a single-chamber cartridge, a piston of the two-chamber cartridge gradually to the front end, so that the outer chamber pressed and the telescopic cylinder is pushed together and also squeezed out.
- electromechanical and pneumatic cartridge presses There are also known electromechanical and pneumatic cartridge presses.
- the object of the invention is to propose a multi-chamber cartridge with the smallest possible residual volume after a complete squeezing.
- the multi-chamber cartridge according to the invention has a tubular outer chamber and a telescopic cylinder, which is arranged in the outer chamber and extends in the longitudinal direction thereof.
- the telescopic cylinder is arranged axially or axially parallel in the outer chamber, but not excluded is, for example, an inclination of the telescopic cylinder in the outer chamber.
- the telescopic cylinder is arranged in the outer chamber so that it is compressed axially when pressing the multi-chamber cartridge with a punch of a cartridge press and thereby pressed.
- segments of the telescopic cylinder are pushed into each other, whereby a volume of the telescopic cylinder is reduced and a content of the telescopic cylinder is displaced from the telescopic cylinder, which is referred to as "squeezing".
- the stamp of the cartridge press presses out the outer chamber.
- the multi-chamber cartridge of the present invention has an outlet at a front end through which contents of the outer chamber and the telescopic cylinder are squeezed.
- the term "front end" refers to the end of the multi-chamber cartridge where the outlet is located.
- a static mixer is placed on the outlet.
- the multi-chamber cartridge has at its front end a tubular telescopic receptacle for the cylinder segments of the telescopic cylinder.
- An inner cross section of the telescopic receptacle is smaller than an inner cross section of the outer chamber and larger than an outer cross section of the telescopic cylinder, in which case in particular an outer cross section of a cross section largest cylinder segment of the telescopic cylinder is meant.
- Meant here are shapes and sizes of the cross sections, which are chosen so that the cylinder segments of the telescopic cylinder can be pushed into the cylinder receptacle at the front end of the multi-chamber cartridge.
- the cylinder segments When the multi-chamber cartridge is pressed out, the cylinder segments are pushed into each other and into the telescopic receptacle of the multi-chamber cartridge.
- This has the advantage that after complete squeezing of the multi-chamber cartridge the telescoping cylinder segments of the telescopic cylinder do not protrude from the front end of the outer chamber in the direction of a front end opposite the rear end into the outer chamber and terminate the extrusion prematurely.
- the outer chamber can in any case be completely squeezed out, at least theoretically.
- a further advantage of the invention is that the multi-chamber cartridge according to the invention can be pressed out with a conventional cartridge press for single-chamber cartridges.
- the multi-chamber cartridge according to the invention does not require a special cartridge press.
- the invention has the advantage that a ratio of the squeezed out of the outer chamber and the telescopic cylinder volumes from the beginning to the end of squeezing or changing only slightly due to changing cross sections of the cylinder segments of the telescopic cylinder, which causes largely constant mixing ratios of the pasty masses ,
- the multi-chamber cartridge according to the invention is in particular a two-chamber cartridge with the outer chamber as the first chamber and the telescopic cylinder as the second or inner chamber.
- a multi-chamber cartridge with more than two chambers for example, has more than one telescopic cylinder in the outer chamber or one or more other chambers in or outside the outer chamber.
- the length of the cylinder segments of the telescopic cylinder preferably corresponds to 0.8 to 3.0 times, in particular 1.5 to 2.5 times, the length of the telescopic receptacle. Insofar as the cylinder segments are longer than the telescopic mount, they stand in the telescoped state in the direction of the rear end of the multi-chamber cartridge from the telescopic receptacle.
- the invention proposes that a piston of the multi-chamber cartridge has a receiving space for the cylinder segments of the telescopic cylinder. A portion of the axial length of the piston is thus used for receiving the cylinder segments.
- the piston may, but need not, be axially longer than it would be without the receiving space. As a result, a residual volume remaining in the outer chamber is reduced.
- An embodiment of the invention provides that circumferences of the cylinder segments of the telescopic cylinder are larger from the front to the rear end of the multi-chamber cartridge.
- the non-axially compressed telescopic cylinder is meant prior to squeezing. So there are outer cylinder segments closer to the rear end and inner cylinder segments closer to the front end of the multi-chamber cartridge.
- the telescopic cylinder is designed so that slide its cylinder segments at the rear end to the front end into one another, that is, it pushes first a rear or in a penultimate cylinder segment, then the two nested cylinder segments on the next cylinder segment
- Another possibility is that cylinder segments of larger circumference slide into each other before cylinder segments of smaller circumference. Both possibilities coincide when the cylinder segments at the rear end of the multi-chamber cartridge have a larger circumference than at the front end.
- an embodiment of the invention provides that breakaway forces, which are necessary for telescoping the cylinder segments of the telescopic cylinder, from the rear end to the front end and / or increase with decreasing circumferences of the cylinder segments.
- the breakaway forces have nothing to do with a break, but are the forces necessary to overcome static friction and initiate a transition to sliding friction.
- the breakaway forces are thus the forces that are necessary to start the nesting of two cylinder segments of the telescopic cylinder. Increasing breakaway forces can be achieved comparatively easily by narrowing fits between the cylinder segments.
- An embodiment of the invention although independently of the previously described embodiment with the increasing breakaway forces between the cylinder segments of the telescopic cylinder can be realized, but in most cases causes the increasing breakaway forces, sees one from the rear end to the front end and / or with decreasing circumferences of the cylinder segments increasing friction between the cylinder segments when telescoping the cylinder segments before.
- a static friction between two cylinder segments which are located closer to the rear end and / or whose circumference are larger, greater than a static friction between two cylinder segments, which are located closer to the front end and / or their circumferences are smaller. Stiction is inherently the cause of the breakaway forces, resulting in the desired increase in breakaway forces between the cylinder segments from the rear end to the front end.
- the increasing from the rear end to the front end and / or decreasing circumferences of the cylinder segments friction when telescoping the cylinder segments between the cylinder segments also means that a sliding friction between two cylinder segments, which are closer to the rear end and / or their circumferences are larger and which are pushed into each other, less than a sliding friction and a static friction between two cylinder segments, which are located closer to the front end and / or their circumferences are smaller and therefore only later be pushed into each other.
- An embodiment of the invention provides predetermined breaking points between the cylinder segments of the telescopic cylinder whose breaking forces increase from the rear end to the front end and / or with decreasing circumferences of the cylinder segments.
- Breakaway points are structurally created joints between the cylinder segments where the cylinder segments separate from each other when a force exerted thereon, the cylinder segments axially compressive force exceeds the breaking force, so that the cylinder segments are then pushed together with a lower force again.
- Predetermined breaking points can be realized for example by notches and / or thin material locations, between the cylinder segments they are executed in particular circumferential or punctiform.
- the separation of the cylinder segments need not be a rupture, but may be, for example, a rupture, and is generally a separation of the cylinder segments at the predetermined breaking point from each other.
- This embodiment of the invention can also be carried out on its own or with one or more of the other explained embodiments of the invention. Also by the breaking points with the from the rear end to the front Ending and / or increasing fracture forces with decreasing circumferences of the cylinder segments, telescoping of the cylinder segments beginning at the rear end and continuing from cylinder segment to cylinder segment to the front end and / or from cylinder segment of larger circumference to cylinder segment of smaller circumference is achieved.
- predetermined breaking points embodiment provides snap connections between the cylinder segments of the telescopic cylinder, which are snapped in telescope cylinder extended and their Ausschnapp methodology from the rear end to the front end and / or increase with decreasing circumferences of the cylinder segments.
- An embodiment of the invention provides a volume element which projects into a rearmost cylinder segment of the telescopic cylinder.
- the volume element can be, for example, a hollow or solid displacement body, which reduces a volume of the rearmost cylinder segment.
- the rearmost cylinder segment is closest to the rear end of the multi-chamber cartridge.
- the volume element reduces the volume of the rearmost to adapt to volumes of other cylinder segments and / or to adapt to a smaller by the large circumference of the rearmost cylinder segment ring cross-sectional area of the outer chamber in an axial section enclosing the rearmost cylinder segment cylinder segment.
- the outlet of the multi-chamber cartridge according to the invention is preferably arranged at a front end of the telescope receptacle remote from the outer chamber, so that the contents of the outer chamber and of the telescopic cylinder flow through the telescope receptacle when the multi-chamber cartridge is pressed out.
- 1-3 shows a multi-chamber cartridge according to the invention in one
- Figures 4 and 5 show two alternative embodiments of an enlarged detail according to arrow IV in Fig. 1;
- the multichamber cartridge 1 according to the invention shown in FIGS. 1 to 3 is provided for extrusion with a commercially available cartridge press, not shown, for single-chamber cartridges.
- the multi-chamber cartridge 1 has a cylindrical outer chamber 2, in which a telescopic cylinder 3 is arranged coaxially with telescoping cylinder segments 4.
- the outer chamber 2 and the telescopic cylinder 3 are used for a separate storage of two flowable masses which are auspressbar together and in a predetermined ratio, determine the diameter of the outer chamber 2 and the telescopic cylinder 3.
- the measures provided for storage masses are particularly pasty, for example, a binder and a curing agent of a synthetic resin.
- the telescopic cylinder 3 can also be understood as an inner chamber or as a second or further chamber of the multi-chamber cartridge 1, which in the exemplary embodiment is a two-chamber cartridge.
- a multi-chamber cartridge with more than two chambers can be realized, for example, by more than one telescopic cylinder, which are arranged parallel to the axis next to each other in the outer chamber and / or one another and in the outer chamber (not shown).
- the multi-chamber cartridge 1 has a piston 5 which is axially displaceable in the outer chamber 2 and with which by moving from a rear end 6 in the direction of a front end 7 of the multi-chamber cartridge 1, a volume of the outer chamber 2 and reduce their content through an outlet. 8 can squeeze out.
- a piston 5 which is axially displaceable in the outer chamber 2 and with which by moving from a rear end 6 in the direction of a front end 7 of the multi-chamber cartridge 1, a volume of the outer chamber 2 and reduce their content through an outlet. 8 can squeeze out.
- a volume of the telescopic cylinder 3 decreases in the same proportion as the volume of the outer chamber 2, so that its content is pressed through the outlet 8 of the multi-chamber cartridge 1, which is also the outlet 8 of the outer chamber 2 and the telescopic cylinder 3.
- the rear end 6 the end is here referred to, at or near which the piston 5 is when the multi-chamber cartridge 1 is not pressed and the telescopic cylinder 3 extended, so not compressed, is.
- the front end 7 the opposite end is referred to, at which the outlet 8 is located.
- the outer chamber 2 merges with an annular step 9 in a cylindrical tubular portion of smaller diameter, which is referred to here as a telescopic receptacle 10 for the cylinder segments 4 of the telescopic cylinder 3.
- the front end of the outer chamber 2 is not the front end 7 of the multi-chamber cartridge 1, but one of the rear end 6 opposite and the outlet 8 facing the end of the outer chamber 2.
- the telescopic receptacle 10 has a smaller diameter and thus a smaller inner cross-section than the outer chamber 2 and a larger diameter than the diameter-largest cylinder segment 4 of the telescopic cylinder 3 and thus a larger inner cross section than a (largest) outer cross section of the telescopic cylinder 3.
- a diameter-smallest cylinder segment 4 of the telescopic cylinder 3 is fixedly arranged in the telescopic receptacle 10, ie at or near the front end 7 of the multi-chamber cartridge 1.
- the telescopic cylinder 3 has an outlet tube 12, which extends its fixed cylinder segment 4 to the outlet 8, so that the content of Telescopic cylinder 3 can be pressed together with the contents of the outer chamber 2 through the outlet 8.
- the multi-chamber cartridge 1 has a connecting piece 13 which leads from the telescopic receptacle 10 to the outlet 8.
- the connecting piece 13 has an external thread 14 for screwing a cap, not shown, for closing the outer chamber 1 and the telescopic cylinder 3 of the multi-chamber cartridge 1 and for unscrewing a static mixer, also not shown after unscrewing the cap.
- the static mixer mixes the contents of the outer chamber 2 and the telescopic cylinder 3 homogeneously when the multi-chamber cartridge 1 is squeezed out and the contents of the outer chamber 2 and the telescopic cylinder 3 flow through the outlet 8 of the multi-chamber cartridge 1 into and through the static mixer.
- the cylinder segments 4 of the telescopic cylinder 3 are longer than the telescopic receptacle 10, in the embodiment, they are about 30% longer. If the cylinder segments 4 are completely pushed into one another, as shown in FIG. 3, they project from the telescopic receptacle 10 into the outer chamber 2, so that the piston 5 can not be displaced up to the annular step 9 at the front end of the outer chamber 2 only up to the distance visible in FIG. There remains a residual volume in the outer chamber 2 and in the telescopic cylinder 3, which can not be completely squeeze. The residual volume is the smaller, the less the cylinder segments 4 of the telescopic cylinder 3, when they are completely pushed into one another, project from the telescopic receptacle 10 into the outer chamber 2.
- Embodiments of the invention are possible in which the cylinder segments 4 do not protrude into the outer chamber 2 when they are completely pushed into each other, so that the outer chamber 2 is completely auspressbar, whereby also a residual content of the contents of the outer chamber 2 in which the cylinder segments 4 in the telescopic receptacle 10 surrounding annular space 11 and in an outlet tube 12 of the telescopic cylinder 3 in the connecting piece 13 enclosing annular space remains.
- the cylinder segments 4 of the telescopic cylinder 3 are designed so that when pressing the multi-chamber cartridge 1 and the associated axial compression of the telescopic cylinder 3, a rearmost, arranged on the piston 5 cylinder segment 4 first to a next cylinder segment 4 and always a rear, the rear end 6 closer cylinder segment 4 on a next, the front end 7 closer cylinder segment 4 pushes. So they push themselves Cylinder segments 4 starting at the rear end 6 one after the other up or into each other.
- the rearmost cylinder segment 4 a largest and the fixed in the telescopic receptacle 10 arranged, foremost cylinder segment 4 has a smallest diameter and circumference.
- breakaway forces between the cylinder segments 4 increase from the rear end 6 to the front end 7 and the smaller diameter and circumference of the cylinder segments 4 are.
- the breakaway force is the force that is necessary to start the nesting of two cylinder segments 4.
- the breakaway force is in itself the force to overcome the static friction between two (not yet) relatively moving cylinder segments 4 and to initiate the telescoping of the two cylinder segments 4 with sliding friction between the two cylinder segments 4, which is lower than the static friction.
- the cylinder segments 4 of the telescopic cylinder 3 are connected to each other with welding points, which are equal or unevenly distributed over a circumference at one of the front end 7 facing edge of the cylinder segments 4 are mounted.
- the welding points form predetermined breaking points 16, which break or, in general terms, are destroyed when a force compressing the telescopic cylinder 3 axially and pushing the cylinder segments 4 into one another during pressing of the multi-chamber cartridge 1 exceeds a breaking force.
- the breaking force is the force that destroys the breaking points 16 forming Welding points between two cylinder segments 4 is necessary.
- the cylinder segments 4 of the telescopic cylinder 3 snap connections 17. This is a circumferential bead on the inside or outside of a cylinder segment 4, which, when the telescopic cylinder 3 is extended, before the multi-chamber cartridge 1 is pressed out, rests on a different cylinder segment 4 in a circumferential groove on the outside or inside.
- the bead in the groove can also be understood as snapped into the groove.
- the escape of the bead from the groove may also be referred to as the snap-out of the bead from the groove and as the snap-fit of the snap-fit connection 17.
- the beads between two closer to the rear end 6 arranged cylinder segments 4 and between cylinder segments 4 of larger diameter and larger circumference are smaller and the grooves less deep than the beads and grooves between two cylinder segments 4, which are arranged closer to the front end 7 and their Diameter and perimeters are larger.
- the Ausschnappkraft the snap connection 17 between two cylinder segments 4, which are arranged closer to the rear end 6 and whose diameter and circumferences are larger smaller than the Ausschnappkraft the snap connection 17 between two cylinder segments 4, which are located closer to the front end 7 and whose diameters and circumferences are smaller.
- the piston 5 has a frustoconical pin which protrudes as a volume element 15 in the rearmost cylinder segment 4 of the telescopic cylinder 3, which is arranged on the piston 5.
- the volume element 15 compensates a volume of the rearmost cylinder segment 4, which is larger than the volumes of the other cylinder segments 4 because of the largest diameter.
- the piston 5a of the multi-chamber cartridge 1a has on its side facing the front end 7 a cylindrical recess as a receiving space 18 for the cylinder segments 4.
- a rear end 6 of the telescopic cylinder 3 is in contact with a bottom 19 of the receiving space 18.
- the telescopic cylinder 3 is sunk with part of its length in the piston 5a.
- the length of the cylinder segments 4 corresponds approximately to 1, 8 times the length of the receiving space 18, or the rearmost cylinder segment 4 is sunk to about 55 percent in the receiving space 18. Accordingly, the telescopic receptacle 10a is shortened compared to the first embodiment.
- the length of the cylinder segments 4 corresponds approximately to 2.2 times the length of the telescopic receptacle 10a, so that approximately 45 percent of the length of the cylinder segments 4 is received in the telescopic receptacle 10a. It is thereby achieved that, in the maximum pressed-out state of the multi-chamber cartridge 1a shown in FIG. 7, the piston 5a is pushed up to the annular step 9. A residual volume in the outer chamber 2 is thus minimized.
- circumferentially distributed webs 20 are arranged as a stop for the cylinder segments 4. Between the webs 20, the contents of the outer chamber 2 can escape. Alternatively, this area can be carried out such that circular cross sections are combined with oval cross sections, so that on the one hand a stop for the cylinder segments 4 and on the other hand a passage for the content of the outer chamber 2 is given (not shown).
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Package Specialized In Special Use (AREA)
- Coating Apparatus (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018108758 | 2018-04-12 | ||
DE102018117146.3A DE102018117146A1 (de) | 2018-04-12 | 2018-07-16 | Mehrkammerkartusche |
PCT/EP2019/058140 WO2019197191A1 (de) | 2018-04-12 | 2019-04-01 | Mehrkammerkartusche |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3774580A1 true EP3774580A1 (de) | 2021-02-17 |
Family
ID=68053069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19715445.3A Withdrawn EP3774580A1 (de) | 2018-04-12 | 2019-04-01 | Mehrkammerkartusche |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3774580A1 (de) |
CN (1) | CN111918826A (de) |
DE (1) | DE102018117146A1 (de) |
WO (1) | WO2019197191A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4052798A1 (de) * | 2021-03-01 | 2022-09-07 | medmix Switzerland AG | Spender, kartuschenanordnung, trägerhülse und verfahren zur bedienung eines spenders |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4457641A (en) * | 1981-04-13 | 1984-07-03 | Smith Donald R | Material dispenser apparatus |
EP0093185A1 (de) * | 1982-05-03 | 1983-11-09 | Voplex Corporation | Dosierspender für zwei Viskose-Komponenten |
US6681957B1 (en) * | 2002-07-17 | 2004-01-27 | Ronald D. Green | Collapsible dispensing system |
TWI346005B (en) | 2008-12-18 | 2011-08-01 | Double fluid container | |
CN101767687A (zh) * | 2009-01-06 | 2010-07-07 | 南美工业有限公司 | 双液型容器 |
-
2018
- 2018-07-16 DE DE102018117146.3A patent/DE102018117146A1/de active Pending
-
2019
- 2019-04-01 EP EP19715445.3A patent/EP3774580A1/de not_active Withdrawn
- 2019-04-01 CN CN201980025332.6A patent/CN111918826A/zh active Pending
- 2019-04-01 WO PCT/EP2019/058140 patent/WO2019197191A1/de active Application Filing
Also Published As
Publication number | Publication date |
---|---|
DE102018117146A1 (de) | 2019-10-17 |
WO2019197191A1 (de) | 2019-10-17 |
CN111918826A (zh) | 2020-11-10 |
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