EP4484016A1 - Adaptateur, dispositif de distribution de fluide l'utilisant et procédé d'assemblage - Google Patents

Adaptateur, dispositif de distribution de fluide l'utilisant et procédé d'assemblage Download PDF

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Publication number
EP4484016A1
EP4484016A1 EP23182559.7A EP23182559A EP4484016A1 EP 4484016 A1 EP4484016 A1 EP 4484016A1 EP 23182559 A EP23182559 A EP 23182559A EP 4484016 A1 EP4484016 A1 EP 4484016A1
Authority
EP
European Patent Office
Prior art keywords
adapter
sleeve
fluid dispensing
dispensing device
projection
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.)
Pending
Application number
EP23182559.7A
Other languages
German (de)
English (en)
Inventor
Sebastian Rother
Milena Angelika Marszalek
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.)
Aero Pump GmbH
Original Assignee
Aero Pump GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aero Pump GmbH filed Critical Aero Pump GmbH
Priority to EP23182559.7A priority Critical patent/EP4484016A1/fr
Priority to US18/757,901 priority patent/US20250001442A1/en
Publication of EP4484016A1 publication Critical patent/EP4484016A1/fr
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0064—Lift valves
    • B05B11/0067—Lift valves having a valve seat located downstream the valve element
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/105—Sealing arrangements around pump actuating stem
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D2200/00—Details not otherwise provided for in A45D
    • A45D2200/05—Details of containers
    • A45D2200/054—Means for supplying liquid to the outlet of the container
    • A45D2200/056—Reciprocating pumps, i.e. with variable volume chamber wherein pressure and vacuum are alternately generated
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D2200/00—Details not otherwise provided for in A45D
    • A45D2200/05—Details of containers
    • A45D2200/054—Means for supplying liquid to the outlet of the container
    • A45D2200/057—Spray nozzles; Generating atomised liquid

Definitions

  • the invention relates to an adapter for use in a fluid dispensing device, such as a hand-operated pump, in particular a spray or drip pump, for dispensing liquids, as well as a fluid dispensing device with such an adapter and a method for assembling the fluid dispensing device.
  • a fluid dispensing device such as a hand-operated pump, in particular a spray or drip pump
  • Such pump systems are often manufactured using a modular system in which individual parts are inserted into one another and connected with form locks or press fits. As a rule, two large subassemblies are assembled, the upper and lower parts, which are then married, i.e. assembled together, in a final assembly step.
  • Fluid dispensing devices which have an upper part and a lower part which are connected to one another during assembly.
  • the upper part has a head with a sleeve and the lower part is provided with a sleeve, also known as a cone.
  • These two sleeves which together form a fluid channel, are inserted into one another during assembly of the fluid dispensing device.
  • a press fit and/or a positive connection then holds the two sleeves together during operation of the fluid dispensing device.
  • fluid dispensing devices can dispense non-preserved products. These are protected from the contaminated atmosphere by various safety barriers throughout the system. It is important that such pumps are used correctly at all times and not dismantled so that protection is guaranteed at all times and the protective barriers cannot be circumvented.
  • the press fits of the assembled parts are therefore selected so that it is difficult for a user to separate the upper part from the lower part.
  • known fluid dispensing devices it is sometimes possible to separate the lower part from the upper part and then put them back together again. However, as soon as these two parts of the pump are separated from each other, protection against contamination is no longer guaranteed. In addition, after reconnecting them, it cannot be determined that the two parts were previously separated and that the product to be dispensed may be contaminated. Manipulation of the pump in this way can therefore lead to contamination without it being possible to trace how this occurred.
  • the object of the invention is therefore to prevent manipulation of fluid dispensing devices by dismantling the upper part from the lower part as far as possible and to make further use of the fluid dispensing device more difficult in the event of such manipulation.
  • dismantling should either be made impossible or dismantling should be recognizable afterwards so that the manipulation can be clearly proven.
  • the present invention is based on the idea that an adapter is provided which is suitable for securely connecting the upper part and the lower part of a fluid dispensing device.
  • an adapter for connecting a sleeve of an upper part and a sleeve of a lower part of a fluid dispensing device can, according to the invention, have an annular base body with a longitudinal axis.
  • An inner surface of the adapter encloses a through-opening for receiving a sleeve, for example the lower part, and is provided with an inner locking structure.
  • the adapter is also provided with a provided with an external locking structure on the outer surface that can be inserted into an opening of a sleeve, for example the upper part.
  • At least one of the locking structures in one embodiment also both locking structures, is designed such that when the adapter is connected to the respective sleeve, the resistance to a relative movement of the adapter to the sleeve in a direction along the longitudinal axis is greater than in a direction opposite to this direction.
  • at least one of the locking structures is designed such that the resistance to a relative movement of the adapter to the sleeve in a disassembly direction along the longitudinal axis is greater than in an assembly direction opposite to this disassembly direction.
  • the adapter it is easier to connect the adapter to the respective sleeve, ie to put the adapter on a sleeve, for example the sleeve of the lower part, or to insert the adapter into a sleeve, for example the sleeve of the upper part, than to separate the adapter from the respective sleeve, ie to pull the adapter off or out of a sleeve.
  • the internal locking structure is designed in such a way that in an assembled state, i.e. when the sleeve of the lower part is accommodated in the adapter, the resistance to displacement of the adapter on the sleeve of the lower part in a first (dismantling) direction along the longitudinal axis is greater than in a second (assembly) direction opposite to the first direction, pulling the adapter off the sleeve is made more difficult due to the comparatively high disassembly force required for this.
  • the adapter can thus be connected comparatively firmly to the sleeve of the lower part, a corresponding design of the interface to the upper part can ensure that this fails in the event of an attempt at manipulation before the connection between the adapter and the lower part is released.
  • the adapter can easily slide on the sleeve of the lower part due to the comparatively lower resistance if an attempt is made to connect the upper and lower parts together again. to connect.
  • This changed position of the adapter on the sleeve of the lower part compared to the original assembly position during the attempt to reassemble can make reassembly impossible and/or make further use of the pump impossible.
  • An adapter according to the invention can therefore be used to both provide protection against manipulation and provide evidence that a system has been manipulated.
  • the inner locking structure can have at least one projection with an insertion bevel that projects radially inwards from the inner surface.
  • the insertion bevel is preferably designed in such a way that it reduces the inner diameter of the adapter in the first direction in sections and forms an undercut with an inner diameter that is enlarged in sections.
  • the insertion bevel is preferably arranged in such a way that the adapter can be pushed onto the sleeve of the lower part with a (assembly) force that is less than the force required for disassembly.
  • the inner locking structure can wedge itself into the sleeve of the lower part in the disassembly direction, whereas assembly is still easy in the assembly direction thanks to the insertion bevel.
  • the inner lock preferably digs deep into the so-called cone, i.e. the sleeve of the lower part, which makes the connection so strong that it can no longer be separated even with pliers.
  • Both the inner locking structure and the outer locking structure can be formed by a single, e.g. circumferential, projection or several, e.g. wedge-shaped, projections. If several projections are provided, these can be arranged offset from each other in the circumferential direction and/or in the direction of the longitudinal axis.
  • the resistance to relative movements of the adapter to a sleeve can also be defined by further design measures, for example by different surface roughnesses and/or by further projections, for example in the form of a or more ribs extending parallel to the longitudinal axis, or in the form of one or more beads extending in the circumferential direction.
  • the inner surface has a first region with a first inner diameter and a second region with an inner diameter that is smaller than the first region, material from the sleeve of the lower part can be displaced or peeled off into the first region when attempting to detach the adapter from the lower part, thereby increasing the resistance to disassembly.
  • the two regions are preferably separated from one another by the at least one projection of the inner locking structure.
  • the outer surface of the adapter can be provided with an external locking structure which is designed such that, when the adapter is accommodated in the sleeve of the upper part, the resistance to displacement of the adapter in the sleeve of the upper part in the first (assembly) direction along the longitudinal axis is smaller than in the second (dismantling) direction opposite the first direction.
  • the external locking structure can have at least one projection projecting radially outward from the outer surface with an insertion bevel which increases the outer diameter of the adapter in the second direction in sections and forms an undercut with an outer diameter which is reduced in sections.
  • a particularly strong connection between the adapter and the sleeves of the pump can be achieved if the adapter is made of a material with a Shore D hardness (according to DIN EN ISO 868) of over 75, in particular between 80 and 90, for example a metal or a plastic.
  • a preferred material for the adapter is, for example, polyoxymethylene (POM), which can have a Shore D hardness (according to DIN EN ISO 868) of 83.
  • a fluid dispensing device with an upper part which has at least one sleeve with an inner sleeve diameter and a lower part which can be connected to the upper part and which has at least one sleeve with an outer sleeve diameter
  • the sleeve of the upper part can be connected to the sleeve of the lower part by means of an adapter of the type mentioned above, wherein the adapter is connected to the sleeve of the upper part and the sleeve of the lower part in a form-fitting manner and/or by means of a press fit.
  • the sleeve of the lower part can consist of a material with a Shore D hardness (according to DIN EN ISO 868) of less than 75, in particular between 45 and 70.
  • Suitable materials for the sleeve of the lower part include polypropylene (PP), 65 to less than 75, and polyethylene (PE), e.g. with a Shore D hardness (according to DIN EN ISO 868) of approximately 45 (for PE-LD) or 64 (for PE-HD).
  • the adapter and upper part can be connected in a defined and secure manner.
  • the force required for assembly can be adjusted so that after manipulation the adapter moves on the sleeve of the lower part instead of the adapter being pushed further into the sleeve of the upper part.
  • the sleeve of the upper part, the sleeve of the lower part and the adapter are designed and coordinated with one another in such a way that the assembly force F1 required to insert the adapter into the sleeve of the upper part is greater than the assembly force F2 required to insert the adapter onto the sleeve of the lower part, and that the disassembly force F3 required to pull the adapter out of the sleeve of the upper part is smaller than the disassembly force F4 required to pull the adapter off the sleeve of the lower part.
  • this allows both a Achieve protection against manipulation as well as provide evidence that a system has been manipulated.
  • a method for assembling a fluid dispensing device of the above-mentioned type comprises the following steps: providing an upper part which has at least one sleeve with an inner sleeve diameter, a lower part which has at least one sleeve with an outer sleeve diameter, and an adapter; then inserting the adapter into the sleeve of the upper part; then inserting the sleeve of the lower part into the adapter.
  • This assembly sequence ensures that the adapter is not displaced during initial assembly into a position which, according to the invention, would indicate tampering or prevent complete assembly or use of the pump.
  • the terms upper part and lower part of the fluid dispensing device are not to be understood as limiting.
  • the upper part can have a fluid outlet in the form of a nozzle or the like and the lower part can be connected to or have a fluid container.
  • the lower part can also have a fluid outlet in the form of a nozzle or the like and the upper part can be connected to or have a fluid container.
  • the fluid dispensing device is described here in part using the example of a hand-operated spray pump. However, the fluid dispensing device is not limited to such a pump. Rather, the adapter can also be used in other fluid dispensing devices.
  • the adapter 1 shown has a substantially cylindrical base body which encloses a central through-opening 2 along a longitudinal axis L.
  • the adapter 1 consists of a comparatively hard plastic, for example POM with a Shore D hardness (according to DIN EN ISO 868) of approximately 83.
  • the inner surface of the adapter 1, which surrounds the through-opening 2, is provided in the embodiment shown with a radially inwardly projecting projection 3, which forms an inner locking structure for fastening the adapter 1 to a component (not shown).
  • the projection 3 has a Figure 1D lower insertion bevel and forms on its in Figure 1D
  • the adapter 1 has an undercut on the upper side. This allows the adapter 1 to be mounted on a Figures 1A to 1D
  • the sleeve-shaped component (not shown) can be moved from top to bottom with less resistance than in the opposite direction.
  • Figure 1D The area of the adapter 1 located above the projection 3 has a larger inner diameter than the area located below the projection 3.
  • the outer surface of the adapter 1 is provided with a radially outwardly projecting projection 4 which forms an external locking structure for fastening the adapter 1 in a component not shown.
  • the projection 4 has a Figure 1D upper insertion bevel and forms on its in Figure 1D
  • the adapter 1 has an undercut on the lower side. This allows the adapter 1 to be inserted into a Figures 1A to 1D A sleeve-shaped component (not shown) can be moved from bottom to top with less resistance than in the opposite direction.
  • additional inner and outer locking structures are provided, which are provided as ribs 5, which are provided parallel to the longitudinal axis L on the outer surface of the adapter 1 and distributed regularly around the circumference, or as radially inwardly projecting circumferential beads 6 are formed on the inner surface.
  • the ribs 5 can also serve as a support structure/stabilization for the large diameter offset and/or the beads 6 can serve for sealing. It is also possible to select the surface roughness of the inner surface and/or the outer surface so that a high clamping force can be achieved between the adapter 1 and the component(s) that can be connected to it.
  • FIG. 3A to 3D A further embodiment of an adapter 7 according to the invention is shown in the Figures 3A to 3D
  • the embodiment according to the Figures 3A to 3D The basic structure corresponds to that in the Figures 1A to 1D illustrated first embodiment with a base body which surrounds a through opening and has an inner projection 8 as an inner locking structure.
  • An outer locking structure is formed by a plurality of wedge-shaped projections 9 which are arranged evenly distributed around the circumference on the outer surface of the adapter 7.
  • a fluid dispensing device 10 is shown in two different states.
  • the fluid dispensing device 10 has, for example, an adapter 1 of the type described above and a Figures 2C and 2D shown lower part 11 and a for reasons of clarity only in the Figures 2A and 2B shown upper part 12.
  • the lower part 11 can be connected to a container, not shown, in which a fluid that can be dispensed by means of the fluid dispensing device 10 is contained.
  • the lower part 11 has, among other things, a sleeve 13, which can also be referred to as the cone of a pump.
  • the upper part 12 is also provided with a sleeve 14, which can be part of the head of a pump.
  • the sleeves 13 and 14 can be made of a softer plastic than the adapter 1, for example PP or PE.
  • the adapter 1 connects the sleeve 13 with the sleeve 14 and thus the lower part 11 with the upper part 12 of the fluid dispensing device 10.
  • the adapter 1 is first inserted into the sleeve 14 of the upper part 12 until the outer projection 4 engages behind a retaining groove 15 in the sleeve 14.
  • the outer surface of the adapter 1 can be pressed into the sleeve 14.
  • the adapter 1 accommodated in the sleeve 14 is then plugged onto the sleeve 13 of the lower part 11, whereby the projection 3 of the adapter 1 digs into the sleeve 13.
  • the adapter 1 is matched to the sleeves 13 and 14 in such a way that a force F1 for mounting the adapter 1 in the sleeve 14 is greater than a force F2 for mounting the adapter 1 on the sleeve 13.
  • the adapter 1 and the sleeves 13 and 14 are matched to one another in such a way that a force F3 for dismantling the adapter 1 from the sleeve 14 is smaller than a force F4 for dismantling the adapter 1 from the sleeve 13. This can be done, for example, by dimensioning the projections 3 and 4, by choosing suitable diameters for the base body of the adapter 1 and/or by choosing suitable surface roughnesses.
  • the relative movement between the upper part 12 and the lower part 11 can be as in Figure 2B shown limited if the in Figure 2B upper end of the sleeve 13 abuts against a projection in the sleeve 14 or against a component inserted therein.
  • the fluid dispensing device 10 can have a further locking connection 16 between a component of the upper part 12 and a component of the lower part 11.
  • this mainly serves to protect the internal components of the fluid dispensing device 10 against the ingress of dirt and the like.
  • One aim of the invention is to make the disassembly of a fluid dispensing device 10 more difficult.
  • the adapter 1 or 7 is specially designed and constructed. It contains two very strong undercuts, which are formed by the inner and outer locking structure of the projections 3, 4. These wedge into their respective counterpart, i.e. the sleeves 13, 14 in the disassembly direction. In the assembly direction, they have an insertion bevel to enable assembly to continue to be easy.
  • the inner locking of the projection 3 digs deep into the so-called cone, ie the sleeve 13.
  • the connection is so strong that it cannot be separated even with pliers. This is also due to the materials
  • the adapter 1 is made of a hard plastic (e.g. POM) while the cone (sleeve 13) is made of a softer plastic.
  • the retaining groove 15 is formed on the inner diameter, behind which the external locking of the projection 4 engages, thus enabling a high holding strength.
  • the head is made of a harder material than the cone, for example, and the locking does not dig into the head to the same extent as in the cone. This makes disassembly significantly more difficult, but not impossible. This serves to protect against manipulation or to prove that a system has been manipulated.
  • the adapter 1 is inserted into the upper part 12 (head) in the first step.
  • the lower part 11 is mounted to the upper part 12 including the adapter 1.
  • the disassembly force F3 from adapter 1 to upper part 12 is smaller than the disassembly force F4 from adapter 1 to lower part 11, this means that during disassembly the adapter 1 is always pulled out of the upper part 12 and remains stuck on the lower part 11.
  • the disassembly force F4 is preferably so large that it is not possible to pull the adapter off even with pliers without damaging the entire lower part. If, in addition, the assembly force F1 from adapter 1 to upper part 12 is greater than the assembly force F2 from adapter 1 to lower part 11, this means that when trying to put the pump back together, the adapter 1 slides down on the cone of the lower part 11. This means that it is no longer possible to put the adapter 1 into the head of the upper part 12. The lower part 11 can therefore no longer be connected to the upper part 12. Once dismantled, it is therefore no longer possible to reassemble the lower part 11 and upper part 12.

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  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
EP23182559.7A 2023-06-30 2023-06-30 Adaptateur, dispositif de distribution de fluide l'utilisant et procédé d'assemblage Pending EP4484016A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP23182559.7A EP4484016A1 (fr) 2023-06-30 2023-06-30 Adaptateur, dispositif de distribution de fluide l'utilisant et procédé d'assemblage
US18/757,901 US20250001442A1 (en) 2023-06-30 2024-06-28 Adapter, fluid dispensing device having said adapter, and assembly method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP23182559.7A EP4484016A1 (fr) 2023-06-30 2023-06-30 Adaptateur, dispositif de distribution de fluide l'utilisant et procédé d'assemblage

Publications (1)

Publication Number Publication Date
EP4484016A1 true EP4484016A1 (fr) 2025-01-01

Family

ID=87060585

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23182559.7A Pending EP4484016A1 (fr) 2023-06-30 2023-06-30 Adaptateur, dispositif de distribution de fluide l'utilisant et procédé d'assemblage

Country Status (2)

Country Link
US (1) US20250001442A1 (fr)
EP (1) EP4484016A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5038818A (fr) * 1973-08-13 1975-04-10
GB2032015A (en) * 1978-09-12 1980-04-30 Pidou Bv Gaskets
DE29714565U1 (de) * 1997-08-14 1997-11-13 Keuco Gmbh & Co Kg, 58675 Hemer Lotionsspender
WO2005057075A1 (fr) * 2003-12-04 2005-06-23 Eaton Corporation Ensemble cartouche a montage rapide avec bouchon
WO2010089599A2 (fr) * 2009-02-05 2010-08-12 Leafgreen Limited Distributeur de fluide de type pompe manuelle
DE202009014575U1 (de) * 2009-10-28 2011-03-10 Haas, Thomas Reduzierstück
WO2013079590A2 (fr) * 2011-11-29 2013-06-06 Eaton Industrial IP GmbH & Co. KG Structure de raccordement sertie pour tubes sous pression
DE102015104646B3 (de) 2015-03-26 2016-06-30 Aero Pump Gmbh Abgabevorrichtung für ein Fluid
DE102013218802B4 (de) 2013-09-19 2018-06-28 Aero Pump Gmbh Abgabevorrichtung für Fluide aus einem Fluidbehälter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10281074B2 (en) * 2016-01-14 2019-05-07 Nordson Corporation Adapters for connecting a separated-outlet fluid cartridge to a single-inlet mixer, and related methods
FR3078872A1 (fr) * 2018-03-16 2019-09-20 Qualipac Conteneur pour produit fluide
US20210220575A1 (en) * 2018-05-30 2021-07-22 Softhale Nv Inhalation device with a pumping unit

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5038818A (fr) * 1973-08-13 1975-04-10
GB2032015A (en) * 1978-09-12 1980-04-30 Pidou Bv Gaskets
DE29714565U1 (de) * 1997-08-14 1997-11-13 Keuco Gmbh & Co Kg, 58675 Hemer Lotionsspender
WO2005057075A1 (fr) * 2003-12-04 2005-06-23 Eaton Corporation Ensemble cartouche a montage rapide avec bouchon
WO2010089599A2 (fr) * 2009-02-05 2010-08-12 Leafgreen Limited Distributeur de fluide de type pompe manuelle
DE202009014575U1 (de) * 2009-10-28 2011-03-10 Haas, Thomas Reduzierstück
WO2013079590A2 (fr) * 2011-11-29 2013-06-06 Eaton Industrial IP GmbH & Co. KG Structure de raccordement sertie pour tubes sous pression
DE102013218802B4 (de) 2013-09-19 2018-06-28 Aero Pump Gmbh Abgabevorrichtung für Fluide aus einem Fluidbehälter
DE102015104646B3 (de) 2015-03-26 2016-06-30 Aero Pump Gmbh Abgabevorrichtung für ein Fluid

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