Liquid dispenser with two liquid reservoirs

Description

FIELD OF APPLICATION AND STATE OF THE ART

[0001] The invention primarily relates to a liquid dispenser for dispensing a particularly pharmaceutical or cosmetic liquid produced by blending two or more starting liquids. In this case, a generic liquid dispenser is provided with a separate liquid reservoir for each starting liquid. Depending on the starting liquid, separate storage of the starting liquids until dispensing may be necessary, since direct storage of the already blended liquid in a common liquid reservoir would impair their quality.

[0002] During discharge, in a generic liquid storage device, the starting liquids are conveyed to a discharge opening by a common pumping device or by separate pumping devices and mixed together along the way.

[0003] Manufacturing a liquid dispenser with more than one liquid reservoir complicates filling the reservoirs. In practice, it is problematic to fill a reservoir component with two liquid reservoirs and then mount the pumping devices and / or the discharge head to it. TASK AND SOLUTION

[0004] The object of the invention is to propose a liquid dispenser of the generic type that allows for an advantageous filling method. Furthermore, the object is to propose a suitable filling method.

[0005] According to the invention, a liquid dispenser is proposed for dispensing a cosmetic or pharmaceutical liquid which is produced by mixing two starting liquids.

[0006] This liquid dispenser typically has, as already described, at least two liquid reservoirs for holding the two starting liquids. The liquid reservoirs define a main extension direction of the liquid dispenser. Particularly preferably, the walls of the liquid reservoirs are cylindrical, at least in sections, with respect to the main extension direction.

[0007] The liquid reservoirs are preferably formed at least primarily by one or each of a main reservoir body, which isolates the liquid reservoirs from the environment. At least one partition wall is provided between the liquid reservoirs to prevent the source liquids in the liquid reservoirs from mixing with each other. In a design in which two separate main reservoir bodies each predominantly define a liquid reservoir, at least two partition walls are provided between the liquid reservoirs.

[0008] A liquid dispenser according to the invention has at least one discharge opening through which the mixed liquid is discharged. Designs are also conceivable in which separate discharge openings are provided, and the mixing of the liquids only occurs downstream of the discharge openings during application.

[0009] Furthermore, a liquid dispenser according to the invention has at least one pumping device, by means of which liquid is conveyed from the liquid reservoirs to the discharge opening. Preferably, a separate pumping device is provided for each liquid reservoir, but particularly preferably, these at least two pumping devices are mechanically coupled so that they are always actuated simultaneously, at least in phases. Preferably, the two outlet sides of the preferably at least two pumping devices are connected to a common mixing channel in which the outlet liquids are combined.

[0010] The liquid dispenser preferably has an actuating pushbutton that can be moved relative to the liquid reservoirs, either separately from the discharge opening or together with the discharge opening. The at least one pumping device is coupled to the actuating pushbutton in such a way that the movement of the actuating pushbutton activates the pumping device.

[0011] To remove the liquid from the liquid reservoirs, a suction opening is provided at each upper end, which is provided on the side of the at least one pumping device and the at least one discharge opening, through which liquid can be sucked to the pumping device. A suction pipe is provided at each of these at least two suction openings, which extends to the opposite lower end of the liquid reservoirs.

[0012] The liquid dispenser is used with the lower end of the liquid reservoir facing downward and the upper end facing upward. The source liquids are drawn from the liquid reservoirs by the pumping devices. The suction tubes, which extend freely from the suction openings into the liquid reservoirs and are thus surrounded by liquid, ensure that the liquid is drawn from the lower end of the liquid reservoirs.

[0013] In a liquid reservoir according to the invention, the filling of the liquid reservoirs takes place in an inverted position with the lower end of the liquid reservoirs facing upwards. For this purpose, a filling opening is provided at the lower end of each liquid reservoir in a base region.

[0014] This method of filling has been found to offer significant advantages. For example, a dispenser according to the invention can be fully assembled, except for a storage base component or plug, before filling.

[0015] The filling opening can be formed in that the common main storage body is still open at its lower end during filling, so that the liquid can be introduced through these open lower ends of the at least two liquid storages and the open ends are then closed by means of a common or separate plug or by means of a storage base component.

[0016] The liquid reservoirs have a storage base in the base region, wherein the storage bases of both liquid reservoirs are preferably formed by a common storage base component, which is preferably connected to the main storage body in a liquid-tight manner. In particular, the storage base component(s) can be tightly connected to the main storage body by gluing or welding. A simple press connection may also be sufficient, wherein the main storage body preferably ends in a round opening into which the correspondingly round external storage base components are pressed.

[0017] In a design with one or more storage base components, the filling openings are preferably formed as openings in this preferably common storage base component.

[0018] The reservoir base may preferably serve the purpose of holding the respective suction pipe in a position that prevents a corresponding filling needle from colliding with the suction pipes when filling the liquid reservoirs with the starting liquids.

[0019] For this purpose, it is considered particularly advantageous if the storage bases each have a holding geometry by means of which a lower end of the respective suction pipe is kept away from the respective filling opening. For this purpose, the storage base extends so far towards the upper end of the liquid storage that it projects into the area of the respective suction pipe and mechanically holds this away from the filling opening. In particular, the filling opening which breaks through the storage base can have a holding wall surrounding the respective filling opening. The suction pipe is arranged at the level of the holding wall, offset from the filling opening transversely to the main extension direction and is therefore arranged outside the holding wall. Due to the holding wall, it cannot reach the area of the filling opening.

[0020] The storage bases are each provided with inclined guide surfaces, at least in sections. These allow the intake pipes to be pushed away from the respective filling opening during assembly of the liquid dispenser, particularly during the attachment of the correspondingly designed storage base component.

[0021] As an alternative to the storage bases with inclined guide surfaces, or in addition, it is provided that blocking sections are provided in the base region of the liquid storage. These blocking sections are arranged within the respective liquid storage in alignment with the respective filling openings and are thus located between the filling openings and the intake openings. A substantially straight or slightly curved intake pipe cannot thus protrude into the filling opening, but is held away from it by the blocking section. An upper side of the blocking sections is preferably provided with an inclined plane or with an upwardly tapered shape in order to push the intake pipe to the side during assembly.

[0022] In order to facilitate the manufacture of the individual plastic parts, the blocking sections can be formed by inserts that are separate from the storage base component and that are attached to the storage base component, in particular in the filling openings, by means of a clamping or snap-in connection.

[0023] Another possible design for fixing the position of the intake pipe or positioning it away from the filling opening provides for the intake pipe to be secured by means of a holding means spaced from the intake opening, particularly in the area of a casing wall of the liquid reservoir. The holding means can be provided, for example, on the inside of the casing wall.

[0024] The blocking sections and the described design of the reservoir base, as well as the retaining means on the casing wall, effectively keep the intake pipe away from the filling opening. In particular, this allows the intake opening, to which the intake pipe is attached, and the filling opening to be arranged in alignment with respect to the main extension direction. This is particularly advantageous for slim, elongated liquid dispensers.

[0025] However, if the shape of the fluid reservoir allows it, it may also be advantageous to arrange the intake openings offset from the filling openings relative to the main direction of extension. In the case of a straight intake pipe extending downwards from the intake opening, this can prevent or facilitate the intake pipe from reaching the area of the filling opening, thereby complicating the filling process.

[0026] After filling, the filling openings are closed, preferably by means of plugs pressed into the filling openings. The filling openings are preferably round, thus facilitating tight sealing. The at least two plugs are preferably formed by a common plug component.

[0027] It may be provided to keep the filling openings closed by means of a temporary plug in a state prior to filling. Such a temporary plug can keep the interior of the liquid reservoir sterile during handling. The temporary plugs can be pressed into the respective liquid reservoir from the outside to enable subsequent filling.

[0028] Preferably, the temporary plugs are formed as a single piece and, in particular, are preferably connected to a surrounding wall of the respective filling opening by means of a film hinge. Alternatively, the filling openings can be sealed before filling by a thin membrane, possibly integral with the surrounding wall, which is pierced before or during insertion of the filling nozzle.

[0029] In preferred designs of the dispenser with two liquid reservoirs, these are arranged next to each other at least in an upper area, i.e. in such a way that, with respect to the cross-section, neither of the two liquid reservoirs completely surrounds the other.

[0030] However, it can be provided that at least in a base region of the liquid reservoir, the second liquid reservoir surrounds the first liquid reservoir, i.e., is provided circumferentially on all sides of the inner first liquid reservoir. The dividing wall between the liquid reservoirs is then designed in the base region as an annular dividing wall that surrounds a first filling opening of the first liquid reservoir and is surrounded by a second filling opening of the second liquid reservoir. This concentric arrangement of the filling openings allows the liquid reservoirs to be filled regardless of their rotational position.

[0031] The described concentric arrangement of the liquid reservoirs is preferably limited to the bottom region, with the liquid reservoirs being arranged side by side in the described manner in an upper region. A transition wall structure is provided in a transition region, which transitions the non-annular partition wall in the upper region into the annular partition wall in the bottom region.

[0032] To ensure that the intake pipe is positioned in the base area in a way that is unobstructive for the filling process, a lower section of the intake pipe can also be permanently connected to a storage tank base component. In this case, the intake pipe, or a section of it, is already attached to the storage tank base component before installation, or is an integral part of it.

[0033] During assembly, the intake pipe is connected to the intake opening or a portion of the intake pipe located there. Guide surfaces, for example, with an inner or outer funnel structure, are preferably provided on the bottom of the intake pipe for guided attachment of the intake pipe to the intake opening. The guide surfaces are preferably provided on a plurality of individual ribs in the form of insertion slopes.

[0034] The design of the liquid reservoirs described so far is intended particularly for dispensers with two liquid reservoirs. However, it can also be used for dispensers with three or more liquid reservoirs and preferably the same number of pumping devices. The aforementioned aspects of the invention regarding the design of the liquid dispensers also extend to dispensers with only one liquid reservoir.

[0035] In addition to the described dispenser, the invention also encompasses a method for producing and, in particular, filling a liquid dispenser. The liquid dispenser has, as described above, at least two liquid reservoirs, each of which has a filling opening provided in the base region of the liquid reservoir. Preferably, the liquid reservoirs are designed in the manner described above with a configuration in which the intake pipe does not protrude into the area of the filling opening.

[0036] The liquid reservoirs are filled by orienting the liquid dispenser so that the filling openings point upwards, and accordingly, a discharge opening and / or actuating button point downwards. A filling head with two or more filling nozzles is provided, which simultaneously or sequentially retract into the dispenser's filling openings and dispense the respective starting liquid. This fills the liquid reservoirs. The liquid reservoirs are then sealed with a plug or a closed reservoir base component.

[0037] Preferably, a storage base component, in which the at least one filling opening is provided, has already been attached to a main storage body during assembly and before filling the dispenser, wherein in the course of this attachment at least one suction pipe of the liquid storage was pushed away from the storage base component and away from the at least one filling opening.

[0038] If the filling opening is designed with a concentric arrangement, filling is preferably carried out by means of a filling head having an inner filling nozzle and an outer filling nozzle, with the inner filling nozzle being arranged within the outer filling nozzle. Preferably, the inner filling nozzle is separated from a liquid-conducting region of the outer filling nozzle by a two-shell partition. An outer shell of the partition is arranged outside the annular partition of the liquid reservoir during filling, and an inner shell of the partition is arranged within this partition during filling.

[0039] In addition to the design of the storage base, a special design of the filler necks used can also ensure that a suction pipe does not interfere with the filling process. For this purpose, the liquid is discharged through at least one lateral outlet opening provided on the side of the filler neck. Preferably, the shape of the filler neck with a displacement geometry on its distal end face ensures that the suction pipe slides along the end face when entering the filler neck, particularly preferably away from the lateral outlet opening.

[0040] When filled, the liquid reservoirs contain starting liquids that, when mixed, form a cosmetic or pharmaceutical liquid. In particular, this can be a formulation containing nitric oxide (NO).

[0041] Further advantages and aspects of the invention emerge from the claims and from the following description of preferred embodiments of the invention, which are explained below with reference to the figures. Fig. 1 shows a first embodiment of a liquid dispenser according to the invention in an overall view. Fig. 2A-2C show the liquid dispenser of the Fig. 1 during filling. Fig. 3 shows a liquid dispenser according to a second example not according to the claims. Fig. 4A bis 4C show a third example, which does not meet the requirements, in an overall view as well as the filling process. Fig. 5A bis 5D show the assembly and filling of a liquid dispenser according to a fourth embodiment of the invention. Fig. 6A bis 6D show a liquid dispenser according to an example not according to the claims. Fig. 7A bis 7D show a liquid dispenser according to a sixth example which does not correspond to the claims. Fig. 8A bis 8D show the filling process of a dispenser with two liquid reservoirs and a specially designed filling head. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0042] The Fig. 1 shows a liquid dispenser 10 designed to dispense a liquid produced by mixing two starting liquids during dispensing. The liquid dispenser 10 is aligned along a main extension direction 2 and has a discharge opening 22 at its upper end through which liquid can be dispensed. This liquid is fed to the discharge opening 22 through a discharge channel 18. The discharge channel 18 is fed by two pumping devices 30.

[0043] To actuate the pumping devices 30, the liquid dispenser has an actuating pushbutton 12, which acts on the piston components 34 of both pumping devices 30 and thus actuates them simultaneously. This forces liquid from the pumping chambers of the pumping devices toward the discharge opening 22.

[0044] The pumping devices 30 are designed to convey liquid from two elongated liquid reservoirs 40. They are each attached to an intermediate wall closing off the liquid reservoir 40 at the top by means of an upper pump housing part 32B. The pumping devices 30 extend with a lower pump housing component 32A into the liquid reservoirs 40. At the lower end of the pumping devices 30, suction openings 38 are provided, wherein a suction pipe 42 is attached to each of these suction openings 38, which extends into a bottom region of the liquid reservoirs 40. These suction pipes 42 serve the purpose of sucking liquid from the lower end of the liquid reservoirs, so that the dispenser 10 in the Fig. 1 shown orientation and liquid can be dispensed.

[0045] The liquid reservoirs 40 are primarily defined by a main reservoir body 14, which predominantly forms both an outer wall 43 and a partition wall 41. A reservoir base 50 is provided at the lower end of the liquid dispenser 10 to close the main reservoir body 14. In this case, this reservoir base is formed by a separately manufactured reservoir base component 16, which is connected to the main reservoir body 14, for example, by means of a welded joint, a press connection, or an adhesive connection.

[0046] The storage base 50 has two filling openings 60 which, in the state of Fig. 1 are already closed by a plug component 70. Furthermore, the storage base 50 has a holding geometry 58, in particular formed by holding walls 58A, which extend upwards so far that the suction pipes 42 can thereby be kept away from the filling openings 60. In Fig. 1 It is clearly visible that the intake pipes 42 are pushed away from the filling openings 60 by the retaining walls 58A. Inclined guide surfaces 56 on the storage tank base 50 ensure that the intake pipes 42 are pushed away from the filling openings 60 during assembly.

[0047] This design of the storage base, which is able to ensure the position of the lower ends of the suction pipes 42, serves the purpose of facilitating the filling of the liquid dispenser 10.

[0048] The filling process is in the Fig. 2A bis 2C As can be seen from Fig. 2A The filling process in a liquid dispenser 10 according to the invention takes place in a position in which the discharge opening 22 points downwards and the bottom-side filling openings 60 point upwards. Fig. 2A shows the liquid dispenser 10 in this orientation with the filler nozzles 210 already retracted, which are part of a common filling head 200. The filler nozzles 210 protrude through the filling openings 60 into the liquid reservoirs 40, whereby the positional fixation of the suction pipes 42 by means of the retaining walls 58A ensures that they do not interfere with the filling process.

[0049] Fig. 2B shows the filled state of the liquid reservoirs 40. Once this is reached, the filling head 200 is retracted, and plug components 70 are pressed into the filling openings 60. Preferably, the filling openings 60 are circular, so that a reliable seal can be achieved by pressing in the plug components 70. It is considered advantageous if the liquid reservoirs can be closed after filling using simple assembly techniques, in particular without gluing or welding components. This reduces the effort required at the filling point to close the liquid reservoirs 40.

[0050] In the state of Fig. 2C the liquid dispenser 10 is completed and filled and is therefore ready for sale.

[0051] The Fig. 3 shows another design of a liquid dispenser 10. As with the other designs of the liquid dispenser 10 described below, the discharge mechanism with the two pump devices 30 and the discharge channel 18, which leads to the discharge opening 22, is unchanged. In the design of the Fig. 3 is different from the design of the Fig. 1 and 2 It is not intended that the reservoir base 50 mechanically keeps the intake pipes 42 away from the filling openings 60. Instead, it is intended that the filling openings 60 are arranged offset from the intake openings 38 of the pumping devices 30 with respect to the main extension direction 2. If intake pipes of sufficient inherent stability are used, this also ensures that the filling nozzles 210 do not collide with the intake pipes 42 when filling the liquid reservoirs 40.

[0052] The design of the Fig. 4A bis 4C is again that of the Fig. 1 bis 2C quite similar. A special feature here is that the filling openings 60 are closed with temporary plugs 51 before filling the liquid reservoirs 40. These are shown in the example of the Fig. 4A bis 4C , which does not correspond to the claims, is connected to the storage base component 16 by means of a film hinge.

[0053] The plugs 51 ensure that the interior of the liquid reservoirs 40 is isolated from the environment during handling of the still empty liquid dispensers 10 and can thus be kept sterile.

[0054] Only when in the Fig. 4B As illustrated, when the filling head 200 with the filling nozzle 210 moves into the filling openings 60 during filling, the temporary plugs 51 are pushed out of the filling openings 60 and the filling process then begins.

[0055] In the Fig. 4C As illustrated, after filling is complete, other plug components 70 are inserted into the filling openings. Although two separate plug components 70 are used in the figure, it is also possible that, according to the Fig. 1 a common plug component 70 closes both filling openings 60.

[0056] The Fig. 5A bis 5D show another design of a dispenser 10. Here, the storage base 50 is provided with blocking sections 52 in the area of the filling openings 60, which cover the filling openings 60 and have a tapered shape on their upper side. In the present case, the blocking sections 52 are provided as separate inserts 54, which are inserted, in particular, in a clamping manner into the filling openings 60 of the storage base component 16. Alternatively, however, a one-piece design would also be possible.

[0057] Fig. 5A illustrates the assembly process. The storage base component 16 with the already inserted inserts 54 is brought from below to the main storage body 14 with the already installed pumping devices 30. The suction pipes 42 come into contact with the blocking sections 52 and are displaced to the side by them, so that the arrangement of the suction pipes 42 finally corresponds to the Fig. 5B results.

[0058] Alternatively, it can also be provided that the storage base component 16 is already fastened to the main storage body 14 before the pumping devices 30 are mounted, for example by pressing, welding or gluing, and that when the pumping devices 30 are inserted with the suction pipes 42 already attached thereto, the blocking sections 52 press the suction pipes to the side accordingly.

[0059] The Fig. 5C und 5D illustrate the filling process. As in Fig. 5C As shown, two filling nozzles of a filling head 200 again move into the filling openings 60, whereby the inserts 54 arranged here do not hinder the insertion of the filling nozzles and the introduction of the respective liquids.

[0060] Alternatively, it can also be provided that the filling nozzles press the inserts 54 into the liquid reservoirs 40 and thus separate them from the reservoir base component 16.

[0061] When designing the Fig. 6A bis 6D The liquid dispenser 10 has the special feature that the liquid reservoirs 40 are arranged next to one another in an upper region, so that they each rest against an outer wall 43 of the main reservoir body 14. In a lower region, in which the filling openings 60A, 60B are also provided, the configuration is different. Here, the liquid reservoir 40A surrounds the liquid reservoir 40B. The partition wall 41A, which centrally divides the cross-section of the main reservoir body 14 into two regions in the upper part, merges into an annular partition wall 41B in the lower region of the liquid dispenser 10. As can be seen from Fig. 6A and in particular from Fig. 6B As can be seen, this results in concentric filling openings 60A and 60B.

[0062] The Fig. 6C shows the filling process in such a configuration. A filling head 200 is used, which has an inner filling nozzle 210A and an outer filling nozzle 210B. An intermediate wall 212 between the respective liquid-conducting areas has an inner shell 212A and an outer shell 212B, wherein the inner shell 212A is arranged within the partition wall 41B and the outer shell 212B is arranged outside the partition wall 41B during filling.

[0063] A significant advantage resulting from this is that the rotational position of the liquid dispenser 10 is irrelevant during filling. A complex alignment process is therefore eliminated.

[0064] As in Fig. 6D As illustrated, the liquid reservoirs 40A, 40B are closed after filling by means of a common plug component 70, which has a shape adapted to the arrangement of the filling openings 60A, 60B.

[0065] When designing the Fig. 7A bis 7D A significantly modified concept is provided that does not meet the requirements. Here, the storage base component 16 is provided with the intake pipes 42 before being attached to the main storage body 14. As can be seen from Fig. 7A und 7B As can be seen, these intake pipes are fixed and preferably integrally formed part of the storage base component 16. At their lower end, they have lateral outlets 45. To achieve stability and simplify assembly, they are each provided with four circumferentially distributed individual ribs 46, on which funnel-shaped guide surfaces 47 are provided.

[0066] How Fig. 7C shows, the suction pipes 42 are not yet mounted at the time of filling the liquid reservoirs 40. First, the liquid reservoirs 40 are filled in the Fig. 7C filled with liquid in the manner illustrated. Only then is the storage base component 16 with the intake pipes 42 connected to the main storage body 14, for example by means of a press connection, an adhesive connection, or a welded connection.

[0067] The Fig. 8A bis 8D illustrate another possibility of advantageous filling of the liquid reservoir 40. In this variant, as in Fig. 8A As is clear, no guarantee was initially given that the intake pipes 42 would be kept away from the filling openings 60.

[0068] However, special filling nozzles 210 are used here. These two filling nozzles 210 are provided at their distal end with a displacement geometry 216, in this case with a Fig. 8Cdownwardly tapered tip. When these filler nozzles 210 are inserted into the filler openings 60, they simultaneously push the intake pipes 42 to the side. The liquid reservoirs 40 are then filled via outlet openings 214 provided on the sides of the filler nozzles 210. Once filling is complete, the filler openings are closed in the manner already described using a common plug component 70.

Claims

1. Liquid dispenser (10) for dispensing a cosmetic or pharmaceutical liquid which is produced by mixing at least two starting liquids, with the following features: a. the liquid dispenser (10) has at least two liquid reservoirs (40) for holding the starting liquids, wherein the liquid reservoirs (40) extend in a main direction of extent (2) of the liquid dispenser (10) and are separated from each other by a partition wall (41), and b. the liquid dispenser (10) has at least one discharge opening (22) and at least one pump device (30) by means of which liquid can be delivered from the liquid reservoirs (40) to the discharge opening (22), and c. a respective intake opening (38) for removing the liquid by means of the at least one pump device (30) is provided at a top end of the liquid reservoirs (40), and d. a respective intake tube (42) extends from the intake opening (38) to a bottom end of the respective liquid reservoir (40), and e. a respective filling opening (60) is provided in a base region at the bottom end of the liquid reservoirs (40), characterized by one of the following features: f. the liquid reservoirs have a reservoir base (50) in the base region, which is perforated by a filling opening (60) in each case, wherein the reservoir bases (50) are each provided with oblique guide surfaces (56) at least in some places, by virtue of which intake tubes (42) are pushed away from the respective filling opening (60) during the installation of the liquid dispenser (10), or g. barrier sections (52), which are arranged inside the respective liquid reservoir (40) so that they are flush with the respective filling openings (60) and which block the respective intake tube (42) from entering the filling openings (60) during the installation of the liquid dispenser (10), are provided in the base region of the liquid reservoirs (40).

2. Liquid dispenser (10) according to Claim 1 with the following further feature: a. the reservoir bases (50) of the two liquid reservoirs (40) are formed by a common one-piece reservoir base component (16), and / or b. the reservoir bases (50) are formed by at least one reservoir base component (16) which is formed by a component separate from a main reservoir body (14), wherein the main reservoir body (14) preferably has two circular openings into which the at least one reservoir base component (16) is inserted, and / or c. the reservoir base component (16) is connected to the main reservoir body (14) by being adhesively bonded or welded or by means of a press-fit connection.

3. Liquid dispenser (10) according to Claim 1 or 2 with the following further feature: a. the reservoir bases (50) each have at least one holding geometry (58) by means of which a bottom end of the respective intake tube (42) is kept away from the respective filling opening (60).

4. Liquid dispenser (10) according to Claim 3 with the following further feature: a. the holding geometries (58) each have a supporting wall (58A) surrounding the respective filling opening (60).

5. Liquid dispenser (10) according to one of the preceding claims, wherein the liquid dispenser has the feature g from Claim 1, with at least one of the following additional features: a. the barrier sections (52) are formed by inserts (54) which are separate from a reservoir base component (16) and are fastened to the reservoir base component (16), in particular in the filling openings (60) and in particular by means of a clamped or latched connection, and / or b. the barrier sections (52) have, on their upward facing side, a shape which deviates from the plane shape, in particular an upward tapering shape, and / or c. the barrier sections (52) have, on their upward facing side, a shape in the manner of a plane which is oblique relative to the main direction of extent (2).

6. Liquid dispenser (10) according to one of the preceding claims with the following further feature: a. the filling openings (60) are each temporarily closed by means of a stopper (51) in a state before the filling, preferably with at least one of the following additional features: b. the stoppers (51) can be pushed into the respective liquid reservoir (40) from outside, and / or c. the stoppers (51) are designed as a single piece with the at least one reservoir base component (16) and in particular are attached to a surrounding wall of the respective filling opening (60) preferably by means of a film hinge.

7. Liquid dispenser (10) according to one of the preceding claims with at least one of the following further features: a. the intake openings (38) are arranged so that they are offset relative to the filling openings (60) with respect to the main direction of extent (2), and b. the intake tubes (42) are designed so that they are essentially straight, such that they are offset relative to the filling openings, corresponding to the intake opening (38).

8. Liquid dispenser (10) according to one of the preceding claims with the following further features: a. at least in a base region, situated opposite the at least one pump device (30), of the liquid reservoir, the second liquid reservoir (40) surrounds the first liquid reservoir (40), and b. the partition wall (41) is formed in the base region as an annular partition wall (41B) which surrounds a first filling opening (60A) of the first liquid reservoir (40) and which is surrounded by a second filling opening (60B) of the second liquid reservoir (40).

9. Liquid dispenser (10) according to Claim 8 with the following further features: a. at least in an upper region of the liquid reservoirs (40), the liquid reservoirs (40) are arranged next to each other such that the two liquid reservoirs in each case adjoin a common outer wall (43) and a non-annular partition wall (41A) originating from the outer wall (43), and b. a transfer wall structure, which transfers the non-annular partition wall (41A) into the annular partition wall (41B), is provided between the base region and the upper region.

10. Liquid dispenser (10) according to one of the preceding claims with the following further features: a. at least one lower subsection (44) of the intake tube (42) is firmly connected to a reservoir base component (16), preferably with at least one of the following additional features: b. the lower subsection (44) of the intake tube (42) is integrally connected to the reservoir base component (16).

11. Liquid dispenser (10) according to Claim 10 with the following further feature: a. guide surfaces (47) for the guided placement of the lower subsection (44) onto the intake opening (38) are provided on the lower subsection (44) of the intake tube, preferably with at least one of the following further features: b. the guide surfaces (47) are provided on a plurality of individual ribs (46) in the form of lead-in slopes, and / or c. the guide surfaces form a funnel structure.

12. Liquid dispenser (10) according to one of the preceding claims with at least one of the following further features: a. the liquid dispenser (10) has a push actuator (12) which can be displaced relative to the liquid reservoirs (40), wherein the at least one pump device (30) is designed to deliver liquid from the liquid reservoirs (40) to the discharge opening (22) by virtue of this displacement of the push actuator (12) relative to the liquid reservoirs (40), and / or b. the liquid dispenser (10) has two pump devices (30) which are preferably mechanically connected to each other for the purpose of simultaneous or at least at times overlapping activation, wherein in particular two piston components (34) of the pump devices (30) are coupled to each other and / or c. the liquid dispenser (10) has a main reservoir body (14) which, in a single piece, forms at least partially an outer wall (43) of both liquid reservoirs (40) and at least partially the partition wall (41) separating the liquid reservoirs (40), and / or d. in a filled state, the filling openings (60) are closed by means of at least one stopper component (70), preferably by means of a common stopper component (70) for closing both filling openings (60), and / or e. the liquid dispenser (10) comprises two pump devices (30) which are each associated with one of the two liquid reservoirs (40), wherein the respective intake opening (38) to which the respective intake tube (42) is attached is preferably provided on an intake nozzle of the pump devices (30), and / or f. at least one intake tube (42) is additionally supported by means of a supporting means spaced apart from the intake opening (38), in particular in the region of an outer wall of the respective liquid reservoir.

13. Method for producing and filling a liquid dispenser (10) with two liquid reservoirs (40) with the following features: a. the liquid dispenser (10) has two filling openings (60) which are each provided in a base region of the liquid reservoirs (40), and b. the liquid reservoirs (40) are filled with an orientation of the liquid dispenser (10) in which the filling openings (60) face upwards, and c. the filling is effected by means of at least one filling head (200) which has at least two filling nozzles (210) which enter the filling openings (60) simultaneously or one after the other and dispense liquid there and hence fill the liquid reservoirs (40), characterized by the following additional feature: d. the filling is effected after at least one reservoir base component (16), in which the at least one filling opening (60) is provided, has been attached to a main reservoir body (14), wherein at least one intake tube (42) of the liquid reservoir (40) has been pushed away from the at least one filling opening (60) by means of the reservoir base component (16) in the course of the attachment.

14. Method according to Claim 13 with at least one of the following additional features: a. the second liquid reservoir (40B) surrounds the first liquid reservoir (40A) at least in a base region of the liquid reservoirs (40A, 40B), wherein for this purpose a partition wall (41) is designed at least in some places as an annular partition wall (41B) which surrounds a first filling opening (60A) of the first liquid reservoir (40A) and which is surrounded by a second filling opening (60B) of the second liquid reservoir (40B), and b. the filling is effected by means of a filling head which has an inner filling nozzle (210A) and an outer filling nozzle (210B), wherein the inner filling nozzle (210A) is arranged inside the outer filling nozzle (210B), preferably with the following additional feature: c. the inner filling nozzle (210A) is separated from a liquid-guidance region of the outer filling nozzle (210B) by a double-shell intermediate wall (212), wherein an outer shell (212B) of the intermediate wall (212) is arranged outside the annular partition wall (41B) during the filling and wherein an inner shell (212A) of the intermediate wall (212) is arranged inside the annular partition wall (41) during the filling.

15. Method according to either of Claims 13 or 14 with at least one of the following additional features: a. during the filling the liquid is dispensed through an outlet opening (214) provided in the side of the filling nozzle (210), and / or b. the filling nozzle (210) has a displacement geometry (216) at its far end face on which the intake tube (42) slides when it enters the filling opening (60).