Drinking device

Abstract

A drinking device for the retronasal intake of a flavoring substance comprises a reservoir (12) for drinking liquid, a headpiece attachable to the reservoir comprising a mouthpiece (16) with a mouth end (28), wherein an flavoring container (20) is integrated into the mouthpiece (16); the flavoring container (20) is permeable to air; and the mouthpiece further comprises a transport channel (18) for drinking liquid extending from the reservoir (12) to a mouth end (28) of the drinking device (10); as well as an air channel (22) for transporting flavored air extending from the flavoring container (20) to the mouth end (28); wherein the air channel (22) for transporting flavored air extends separately from the transport channel (18) for drinking liquid to the mouth end (28).

Description

Field of invention

[0001] The invention relates to a drinking device for the retronasal absorption of an aroma substance. State of the art

[0002] There is a growing need for beverages that, on the one hand, have a pleasant taste, but on the other hand, avoid health risks that can arise from ingesting flavorings or stabilizing agents dissolved in the beverage. Furthermore, an increased calorie intake should be avoided.

[0003] Therefore, water with a subtle fruit flavor has become popular in recent years. However, this flavored water also contains undesirable additives, such as stabilizers and a certain amount of sugar, which is why these flavored drinks also have a calorie count that is unacceptable to many consumers.

[0004] A first step toward solving the problem is to add the flavoring to a beverage immediately before consumption. US 2008 / 028353 A1, US 2015 / 030726 A1, and US 8,662,2904 are examples of dosing systems in which a flavoring substance, originally intended to be added separately, is added to and dissolved in the beverage immediately before or even during consumption. While this measure can avoid problems such as stabilizing the beverage over an extended period, the issue of unwanted ingestion of additives remains.

[0005] Since the olfactory sensory impression constitutes a significant part of the gustatory perception when consuming food and beverages, existing systems attempt to influence the smell perceived while drinking. For this purpose, US 5,635,229 proposes an aroma element that can be attached to a drinking vessel near the drinking opening, so that the aroma element is in close proximity to the user's nose, who breathes through their nose while drinking and thus inhales the scent.

[0006] The drinking vessel according to US 8,662,339 B2 also works on this principle, whereby an aroma is inhaled through the nose while drinking. Description of the invention

[0007] The invention is based on the objective of proposing a drinking device that provides the user with an improved taste experience.

[0008] This problem is solved by a drinking device with the feature of claim 1. Preferred embodiments follow from the remaining claims and the following description.

[0009] The drinking device according to the invention for retronasal intake of an aroma substance comprises a reservoir for drinking liquid, at least one aroma container through which air can flow, a transport channel for drinking liquid extending from the reservoir to a mouth end of the drinking device, and an air channel for transporting aromatized air, which extends from at least one of the at least one aroma container either to the transport channel for drinking liquid or to the mouth end.

[0010] The essential feature of the drinking device according to the invention is that the flavoring substance is absorbed retronasally. When drinking, the flavoring substance enters the user's mouth along with the drinking liquid and then rises retronasally via the pharynx to the olfactory mucosa (regio olfactoria), where it is detected by the receptors located there and perceived by the user. The device according to the invention is equally suitable for cold or warm drinking liquids.

[0011] This method takes advantage of the close connection between the senses of smell and taste. The user therefore gets the impression of tasting the aroma, even though they are actually only smelling it retronasally.

[0012] A person's sense of taste is significantly influenced by the retronasal sense of smell. The receptors on the tongue can only distinguish between sweet, sour, bitter, salty, and umami, whereas the more nuanced sense of taste arises when the gaseous phase of foods and liquids rises in the back of the throat via the retronasal route and reaches the olfactory mucosa. The sensors located there trigger neurological stimuli that create a taste sensation in the brain. Thus, a person who is exposed to an aroma in the back of their throat while drinking perceives the beverage as flavored, because the retronasal olfactory process creates the sensory impression in the brain that the beverage is the source of the aroma, even though the user is consuming a pure, unflavored liquid such as water.When smelling through the nose, the so-called orthonasal intake of an aroma substance, this impression does not arise to the same extent, because the sensory impression is linked to the breathing rate and the user thus gets the correct impression that he is only smelling the aroma substance, but not tasting it as with retronasal intake.

[0013] The preferably refillable storage container can hold pure water or carbonated water, while the flavoring substance is transferred to the air in the transport channel and added to the drinking liquid immediately before ingestion by the user, or transported separately into the user's throat.

[0014] Alternatively, the drinking liquid can also have its own inherent flavor. The existing inherent flavor of the drinking liquid is either enhanced by the flavoring substance from the flavoring container or supplemented by one or more additional flavor components. If, for example, the reservoir contains apple juice, apple flavoring can be added to enhance the taste experience, or orange flavoring, for example, can be added to create a flavor blend. In this way, alcoholic beverages, such as beer, can also be flavored with additional flavoring substances, allowing for the consideration of a user's specific preferences by using a suitable flavoring container in the drinking device according to the invention.Furthermore, the drinking device disclosed here can also use flavors not typically found in food products, such as sandalwood (familiar from room fragrances), spring meadow, or unicorn. The flavoring used can be artificial or natural. It is possible to use flavorings isolated or concentrated from an artificial or natural source, as well as natural substances such as fresh or processed products made from, for example, lemon peels, dandelion leaves, licorice, or other aromatic materials.

[0015] According to the invention, multiple aroma containers can also be provided. This can include a spare aroma container that can be used as soon as the one currently in use is exhausted. Alternatively or additionally, it is also possible to use several aroma containers simultaneously in order to produce any desired aroma mixtures from different base aromas.

[0016] According to the invention, the transport channel for drinking liquid runs towards the mouth end, while the air channel either opens into the transport channel for drinking liquid in the immediate vicinity of the mouth end, or runs separately to the transport channel for drinking liquid towards the mouth end.

[0017] The advantage of this solution, in which the air channel opens into the liquid transport channel in close proximity to the mouthpiece, is that misuse is impossible. The flavoring is automatically ingested along with the liquid. However, the disadvantage of this solution is that air bubbles are present in the liquid. Consequently, drinking is accompanied by increased noise, similar to drinking from a straw through which both liquid and air are drawn in. Furthermore, the user no longer has the desired impression of drinking pure liquid like water. Finally, another disadvantage is that the contact between the liquid and the flavored air lasts for an extended period, during which the flavoring is transferred from the air into the surrounding liquid.The drinking liquid is therefore perceived as "contaminated" by the user, regardless of the safety of the flavoring substance. Therefore, solutions where the air channel runs separately from the transport channel for the drinking liquid to the mouthpiece are preferred.

[0018] According to a preferred embodiment of the invention, the mouthpiece is designed such that the transport channel for drinking liquid and the air channel for transporting flavored air extend separately from each other and substantially the same distance longitudinally. "Longitudinal direction" here refers to the longitudinal extent of both the transport channel for drinking liquid and the air channel for transporting flavored air at the mouthpiece. In other words, when drinking, the transport channel for drinking liquid and the air channel extend substantially the same distance into the user's oral cavity.

[0019] In this technical solution, the flavored air and the drinking liquid are drawn separately from the drinking device. The flavored air does not first need to escape from the surrounding drinking liquid in the form of bubbles, but can rise retronasally through the pharynx to the olfactory mucosa immediately after entering the oral cavity. A further advantage of separately supplying the flavored air and the drinking liquid to the oral cavity is that even less mass transfer can occur between the air and the drinking liquid. This is due to two reasons. First, the flavored air is not contained in the drinking liquid in the form of small bubbles, thus significantly reducing the total surface area available for mass transfer between the liquid and gaseous phases.The second reason is that the user swallows significantly less, and indeed a negligible, amount of flavored air along with the drinking liquid, since the flavored air is already present as a separate phase and no prior separation is required. Finally, this technical solution also has the advantage that the user perceives themselves as consuming a clear drinking liquid, not one that is even slightly infused with gas. The user experiences the sensation of consuming pure liquid, such as water.

[0020] One variant of the solution according to the invention consists in the mouth end being designed in such a way that, when using the drinking device, the transport channel for drinking liquid and the air channel for transporting flavored air extend to different distances into the user's mouth.

[0021] Naturally, two different possibilities are conceivable. Firstly, the air channel for transporting flavored air can extend further into the user's mouth than the channel for the drinking liquid, or secondly, the channel for the drinking liquid can extend further into the user's mouth. Both solutions share the common feature that the flavored air and the drinking liquid are drawn separately from the device. Furthermore, both variants aim to minimize the exchange of substances between the flavored air and the drinking liquid. However, this advantage can be achieved equally well if the channel for the drinking liquid and the air channel for transporting flavored air extend the same distance into the user's mouth, but both are designed to protrude into the user's mouth during normal use.However, an extension too far into the oral cavity is perceived as unpleasant by the user.

[0022] The technical challenge of all the solutions described above lies in coordinating the geometries of the transport channel for drinking liquid and the air channel so that, depending on the drinking position, as well as with special drinking liquids and also the viscosity of the drinking liquid, the flavored air and the drinking liquid are drawn in in the desired ratio to each other.

[0023] According to a preferred embodiment of the invention, the drinking device further comprises a throttling device and / or sealing device for the transport channel for drinking liquid and / or the air channel for transporting flavored air, wherein the sealing device is preferably provided in a mouthpiece encompassing the mouth end and the mouthpiece is movable from a sealing position to a non-sealing position.

[0024] A throttling device can be provided as an alternative to, but preferably in addition to, a sealing device. A throttling device makes it possible to adjust the ratio between drinking liquid and flavored air, thereby allowing, for example, the degree of flavoring or the flow rate of drinking liquid to be controlled. A simple embodiment of a throttling device, which can nevertheless be actuated until a complete seal is achieved, is a pinch device by means of which a flexible section of the transport channel or air duct can be reduced or completely clamped off with respect to its internal cross-section.

[0025] A preferred alternative embodiment of the sealing device is the provision of a pull-tab, preferably located at the mouthpiece, which is pulled out by the user to open the flow. After drinking, the pull-tab is pushed back towards the mouthpiece to close the air channel and the transport channel.

[0026] Another preferred alternative of the drinking device according to the invention comprises a rotary stopper that is opened or closed by the user by turning it. The use of rotary stoppers is well known in chemical engineering, as a rotary stopper represents a simple but very tightly sealing component. Furthermore, a rotary stopper can also be continuously adjusted, so that it combines the functionalities of a throttling device and a shut-off device.

[0027] Another preferred alternative of the device according to the invention comprises a sliding valve, which, according to a preferred embodiment, is provided in a lid of the drinking device and can simultaneously include the mouthpiece. The advantage of such a sliding valve is that it is immediately apparent whether the valve is in the open or closed state.

[0028] A preferred alternative embodiment of the device is the provision of a rotating lid, which is either placed on top or screwed on, thereby sealing the drinking device. A rotating lid is well suited to sealing the drinking device tightly even when increased pressure builds up inside the reservoir, as can occur when the drinking liquid is a carbonated beverage. Such a lid can seal the transport channel for the drinking liquid, the air channel for flavored air, and, likewise, an additional air channel for supplying air into the reservoir for pressure equalization. A further advantage of a rotating lid is that it protects the mouthpiece from contamination, and it is a familiar element to every user, whose suitability for tightly sealing the drinking device is readily relied upon.

[0029] A preferred alternative embodiment of the device is the provision of a sports valve, such as those known from drinking bottles used, for example, while cycling. Accordingly, the function of a sports valve is known, so that the user intuitively pulls the valve to drink and pushes it back into its original position after drinking.

[0030] A particularly preferred embodiment, however, is one in which the mouthpiece of the drinking device simultaneously serves as a shut-off device, enabling the tight sealing of all transport channels leading towards the mouthpiece. According to a preferred embodiment of the invention, the mouthpiece is designed to move from the sealing position to the non-sealing position via a translational movement. The mouthpiece can be designed such that both the transport channel for drinking liquid and the air channel, as well as the air line for the inflow of air into the interior of the reservoir, can be sealed and opened. Consequently, the user only needs to move the mouthpiece into an operating position, thereby activating the sealing device without the user noticing.In this way, the number of components can be kept low, which, among other things, enables a more hygienic design and also cost savings in the production and assembly of the drinking system.

[0031] According to a preferred embodiment of the invention, the at least one aroma container is removable and can be inserted into the drinking device according to the invention by means of a simple sequence of movements. In a preferred embodiment, a bayonet fitting can be used. A bayonet fitting has the advantage that the correct orientation of the aroma container in the drinking device is ensured after insertion. In another preferred embodiment, a spring element can additionally be provided that allows the aroma container to be ejected from its receptacle as soon as it has not been inserted correctly. Furthermore, different locking positions allow for pre-selection between various aroma intensity settings.

[0032] Preferably, one of the at least one aroma container comprises a sealing device, wherein the aroma container is movable from a sealing position to a non-sealing position. An aroma container with a substantially circular cross-section can be used in the same way as the rotary plug described above by rotating the aroma container about its axis of symmetry to align the transport channel for drinking liquid with the channel through the aroma container. The advantage of this solution is that no additional component is required.

[0033] Alternatively, it is equally possible to move the aroma container from a sealed to a non-sealing position by shifting it axially. For example, an aroma container with any prismatic or ring-shaped geometry could be pushed axially to move it into a non-sealing position. The aroma container can then lock into this position, meaning it remains there automatically, or drinking with aroma infusion can be restricted to when the aroma container is held down. This would also allow a user to choose between drinking liquid with and without flavored air.

[0034] According to a preferred embodiment of the invention, at least one of the at least one aroma container can comprise several chambers containing aroma substances of varying odor intensity and / or different odor qualities. According to a further alternative of the drinking device according to the invention, several aroma containers can be provided. In other words, one or more aroma containers can be provided, and this aroma container, or any number of the multiple aroma containers, can additionally comprise several chambers. In this way, any desired variations can be realized. When a single aroma container is provided, it can contain different aromas, so that a different aroma is supplied depending on the insertion direction or on an orientation of the aroma container that can be changed by the user even during drinking.Furthermore, when using a single aroma container, both the type and intensity of the aroma can be varied. For example, an aroma container could contain two, three, or more different intensities of the same flavoring agent, or a single aroma container could contain two different aromas, each available in two different strengths, resulting in the aroma container having four separate chambers.

[0035] By providing multiple aroma containers, any aroma mixtures can be created by varying different aroma types, aroma strengths, or by adding one and the same aroma type, which can be individually compiled by a user.

[0036] According to a preferred embodiment of the invention, one of the at least one aroma container is located in a mouthpiece of the drinking device, the mouthpiece preferably being replaceable. This solution has the advantage of improving the hygiene of the drinking device, since the mouthpiece with the aroma container is exchanged, and thus a new mouthpiece is attached to the drinking device after the aroma container is exhausted. However, with this solution, it is important to ensure a tight seal between the mouthpiece and the reservoir for the drinking liquid.

[0037] Integrating the aroma container either into the mouthpiece or attaching it to the lid of the reservoir offers the advantage that the user can immediately identify the flavor. For example, the mouthpiece could be colored to match the chosen aroma, such as yellow for lemon or green for green apple.

[0038] In a preferred embodiment of the invention, the reservoir for drinking liquid is provided with a lid. When the lid is removed, the user has access to both a filling opening for drinking liquid and an opening for one or more flavor containers. After replacing the lid, the user can then switch between different flavors by rotating the lid. The advantage of this solution is that no separate locking mechanism for the flavor container is required in the drinking device according to the invention, because the flavor container is automatically secured in place after the lid is replaced. This solution also simplifies the sealing of the flavor container.

[0039] In one preferred design, the aroma container features an indicator tab that protrudes from the drinking vessel after the lid is placed on, informing the user about the selected aroma. The tab can be easily grasped to remove the aroma container.

[0040] According to an alternative, preferred embodiment of the invention, the aroma container is designed as a ring located near the mouth end of the drinking device. The ring may contain a single chamber. Alternatively, the ring-shaped aroma container may contain multiple chambers with different flavors, preferably distinguished for the user by an additional marking and / or color. In this way, the user can intuitively change the aroma by operating the aroma ring, even while drinking. Thus, the use of a ring-shaped aroma container offers many user-friendly options.

[0041] According to a preferred embodiment of the invention, the drinking device further comprises a pull valve as a pressure equalization valve, which closes an air supply line leading into the interior of the reservoir for drinking liquid. If a vacuum builds up in the reservoir due to drinking, i.e., the dispensing of drinking liquid, the valve opens and allows air to enter the reservoir. As soon as the pressure equalization has been achieved, the pressure valve closes automatically again due to its own internal tension, so that no drinking liquid can escape. This variant is particularly advantageous in cases where the shut-off device only closes the transport channel for drinking liquid and the air channel for transporting flavored air, but not the air channel for pressure equalization.One exemplary variant of this type is the provision of a mouthpiece that can be pivoted from a sealing position to an operating position, while the air line for pressure equalization is located at another point in the container.

[0042] According to a further preferred embodiment of the invention, the drinking device further comprises a head part which includes the mouth end and is movably arranged relative to the reservoir, wherein the head part is movable from a position sealing the transport channel for drinking liquid and / or the air channel to a non-sealing position.

[0043] In the simplest case, the head of the drinking device can be rotatably attached to the reservoir for drinking liquid. The geometry of the head relative to the reservoir can be designed so that when the head is rotated into the drinking position, it tilts. This allows for an ergonomically comfortable drinking posture for the user and also clearly indicates that the drinking device is ready for use and that improper handling could result in leakage. In this way, a drinking device can be designed with a futuristic aesthetic that underscores its claim to be a new and innovative drinking device.

[0044] The drinking device according to the invention can be designed in a variety of ways. It can be a portable drinking bottle, either single-walled or double-walled as a thermos flask. In Alternatively, an open drinking vessel, similar to a cup, can be used, although it is important to maintain the correct drinking posture so that both the liquid and the dosed aroma are directed into the throat. In this technical solution, the aroma container could be a ring surrounding the liquid reservoir, from which the aroma is either dosed into the liquid transport channel or delivered to the user via a separate air channel running along the rim of the drinking cup.

[0045] Alternatively, the drinking cup can also be closed at the top and used as a so-called shot glass. This variant can be used to modify the flavor of liquids such as spirits, liqueurs, or caffeinated or caffeine-free drinks with specific flavorings, to intensify an existing flavor, or to mask potentially unwanted sensory perceptions.

[0046] Another alternative design involves integrating the functional features of the drinking device according to the invention into a straw that includes the mouthpiece and whose end opposite the mouthpiece is located in the reservoir for the drinking liquid. In this case, the straw simultaneously serves as the transport channel for the drinking device, running from the reservoir to the mouthpiece. The aroma container can be designed as a ring surrounding the straw and be located above the level of the drinking liquid, so that when the straw is used, air is drawn into the aroma container and either guided to the mouthpiece via an air channel running parallel to the transport channel for the drinking liquid, or it flows into the transport channel for the drinking liquid, thus dosing the added aroma into the drinking liquid in the form of air bubbles.

[0047] All of the above-mentioned ideas and variations have in common that the flavoring substance is introduced into the mouth and throat of the user via the mouthpiece, and the taste sensation occurs through retronasal absorption of the flavoring substance. Apart from a small, unavoidable amount of absorption of the flavoring substance into the drinking liquid itself, or the incomplete separation of air bubbles containing the flavoring substance from the drinking liquid, the user ingests only pure drinking liquid.

[0048] A preferred embodiment of the invention for optimizing or simplifying the drinking device provides that the head of the drinking device is divisible, disassemblable, or hinged. The head can consist of one, two, or more parts that must be assembled for use of the device. For example, the head can be divided in a substantially axially symmetrical manner, so that in the disassembled position the channels of the drinking device are completely or partially exposed. This offers several advantages. First, it facilitates cleaning of the drinking device, as the sometimes narrow channels of the device can be easily reached by cleaning fluid, and the cleaning fluid is not retained by any capillary forces that may occur.Furthermore, a split design for the drinking device's head allows the aroma reservoir to be integrated into the interior of the head. In previous systems, the aroma reservoir could only be attached externally, meaning it remained visible during use. Existing systems also required a separate mounting mechanism for the aroma reservoir, which is eliminated by the split design.

[0049] The "head" refers to the part of the drinking device where the essential technology and / or the aroma reservoir of the drinking device is located. It is expediently located on the head of the drinking device, but can also be located elsewhere on the device or be integrated into it.

[0050] Using a primarily elastic material, such as silicone or other elastomers, to manufacture the split or non-split headpiece or parts thereof of the drinking device can, for example, simplify the sealing of the system. Furthermore, a split headpiece allows for an increased number of connection options between the headpiece and the drinking device's liquid reservoir.

[0051] Another preferred embodiment of the invention consists in the channels having a special shape. For example, the channel for the liquid may be widened or narrowed at one, two, or more points, meaning the diameter of the channels is larger or smaller than at other points. A narrowing or widening can be located, for instance, in or on the mouthpiece of the drinking device. This alters the user's mouthfeel when drinking from the device. The drinking sensation poses a problem in previous solutions because consumers are not accustomed to drinking liquid along with air bubbles. By widening or narrowing at one or more points in the liquid-carrying channel, the pressure conditions change, thus altering the size and / or shape of the air bubbles in the liquid. This improves the user's drinking experience.

[0052] Another preferred embodiment of the invention involves modifying the geometry of the liquid channel at the point where the air channel of the drinking device enters. This can offer several advantages. For example, by narrowing the liquid channel at the air channel inlet, the Venturi effect can be utilized. Due to the narrowing at the inlet, the dynamic pressure (stagnation pressure) is at its maximum and the static pressure at its minimum. The velocity of the liquid increases proportionally to the cross-sectional area as it flows through the constricted section, since the volume of liquid remains constant. Simultaneously, the pressure in the air channel, which is preferably located at the narrowest point, decreases. This creates a pressure differential that increases the absorption of the flavored air into the liquid of the drinking device.This means, for example, that the user has to suck less hard on the drinking device, which improves the drinking experience or results in design advantages.

[0053] Another preferred modification of the channel geometry in the drinking device involves different surface finishes on the channel interior or obstacles that alter the flow conditions within the liquid-carrying channels. Among other things, this can lead to cavitation. Through cavitation or mechanical fragmentation of the air bubbles, a change in bubble size and / or geometry can be achieved. This also improves the drinking experience for the user. Changing the bubble size can also be achieved, for example, by using a sieve-like geometry or a membrane.

[0054] The air channel of the drinking device can also have a special shape. Previous solutions use a channel of a uniform shape throughout. This requires the air channel to have small diameters, which causes problems during the manufacturing of the drinking device's head. Furthermore, a narrow channel makes cleaning the drinking device more difficult. The solution according to the invention therefore provides, for example, that the air channel is essentially only tapered at a short point. This simplifies production and facilitates cleaning.

[0055] Another preferred embodiment of the drinking device according to the invention provides that the aroma unit of the drinking device according to the invention must be activated before use. The aroma can initially be encapsulated microscopically or macroscopically. Activation can be effected, for example, by a change in temperature or a mechanical process. A preferred embodiment provides an air-permeable filter in which a substantially round aroma unit is placed, the interior of which essentially contains a fluid comprising a flavoring substance. The shell of the aroma unit preferably consists of a material such as gelatin or agarose, so that in the inactive state a dense shell keeps the fluid containing the flavoring substance in a non-volatile state. Upon activation, for example by rupturing the shell under pressure, the fluid is released into the surrounding filter.Such solutions are proposed, for example, in US Patent 20040261807 A1 for use in cigarettes. According to the invention, this technology is to be used in a preferred embodiment of the drinking device according to the invention. This offers several advantages. For example, it allows the flavoring substances to be protected from oxidative processes, and in general, packaging material can be saved and plastic seals avoided.

[0056] Another preferred embodiment of the drinking device according to the invention provides that the air channel comprises a specially shaped chamber. This solves the problem that fluctuations in pressure and flow conditions in the transport channel for drinking liquid, which occur at the end of the drinking process at the drinking device, lead to drinking liquid entering the air channel and / or the aroma container. This entry of liquid can, for example, lead to undesirable dilution of the fragrance-releasing substance in the aroma container or cause hygienic problems. The interruption of the air channel by a chamber can be implemented by providing a recess in the head of the drinking device at the contact point between the removable transport channel for drinking liquid and the air channel.In a preferred embodiment, the air duct coming from the aroma reservoir opens into the chamber at a substantially upper position. On the substantially opposite side, the air duct continues at a substantially lower position within the chamber. The chamber prevents the drinking liquid from flowing back into the aroma reservoir. The substantially opposite position of the air duct continuation ensures optimal use of the chamber. The different heights of the air duct's inlet and outlet openings within the chamber allow, among other things, for drinking liquid to flow back into the drinking device. Positioning the chamber at the contact point between the head and the drinking liquid transport channel facilitates cleaning after disassembly of the two components.

[0057] All preferred embodiments and combinations of the technical features described above and below have in common that the average airflow through the air channel during normal drinking from the drinking device according to the invention is expediently between approximately 250 and 550 ml / min. This airflow is achieved, for example, by using an air channel with a diameter of approximately 0.5 to 2.5 mm or with a non-circular cross-section and a cross-sectional area of ​​the air channel between 0.2 mm² and 4.9 mm². The airflow can also be adjusted in other ways, such as by a substantially short narrowing of the air channel, a valve (which can also be designed as a check valve to prevent liquid from entering the air channel and / or the flavor container), or by using a membrane.A substantially permeable membrane can, for example, be installed at the point where the air channel enters the liquid transport channel. This not only regulates the airflow to a suitable level but also controls the size of the air bubbles entering the liquid stream, resulting in a more pleasant drinking experience. A further advantage of using a membrane at this point is that the previously described fluctuations in pressure and flow conditions at the end of the drinking process do not cause liquid to enter the air channel and / or the flavor container, or reduce its quantity, at any given moment.

[0058] Another problem with the drinking device according to the invention lies in sealing the entire device for transport. It is important to note that not only the drinking opening and a pressure equalization channel must be sealed, but also the air channel of the drinking device to prevent drinking liquid from entering the flavor container. Ideally, the user of the drinking device would be able to close all three openings in a single operation. Therefore, a further preferred embodiment provides for the drinking device to be sealed with a lid that simultaneously closes all three openings. This can preferably be achieved by inserting a pin / prong into at least one of the three openings (each) and sealing the remaining openings using conventional systems.For example, a dome / pin can be inserted into the transport channel for drinking liquid to such an extent that it also seals the opening of the air channel into the transport channel for drinking liquid, thus preventing drinking liquid from entering the air channel and / or the aroma container. Another preferred embodiment, which solves the problem of sealing the aroma reservoir described at the beginning of this section, provides that the aroma reservoir is, for example, essentially ring-shaped and that the flow connection between the aroma container (which can be removed, for example) and the air channel is broken by a movement, such as turning the aroma container upside down. For this purpose, the air outlet opening on the aroma container must be, for example, arranged off-center, so that an aroma container placed upside down closes the aroma container-side end of the air channel.

[0059] The invention is described below by way of example only, with reference to the attached schematic figures, in which Fig. 1 schematically shows a first possibility of the mouthpiece technology of a drinking device according to the invention for the retronasal intake of an aroma substance; Fig. 2 shows an alternative mouthpiece technology of a drinking device according to the invention for the retronasal intake of an aroma substance; Fig. 3a and Fig. 3b show the use of a pivotable mouthpiece in the drinking device according to the invention; Fig. 4a and Fig. 4 show a cross-sectional view showing a pressure equalization valve in the open and closed states; Fig. 5 schematically shows a slide valve; Fig. 6 shows a sectional view through the drinking device according to the invention with a rotating lid that tightly seals the drinking device; Fig. 7 schematically shows a drinking device according to the invention with a seal designed as a pull-tap; Fig. 8 schematically shows the use of a rotary stopper by a user; Fig.Figure 9 schematically shows the function of an integrated valve with separate transport channels for drinking liquid and air channels for transporting flavored air; Figure 10 schematically shows the function of an integrated valve with a series-running transport channel for drinking liquid and air channels for transporting flavored air; Figures 11a and 11b schematically illustrate the sealing of the transport channel for drinking liquid and the air channel for transporting flavored air by means of the position of the flavor container; Figures 12a, 12b, 12c and 12d schematically show top views of the reservoir of the drinking device according to the invention, onto which a head part can be placed and in which different arrangements for the filling opening for drinking liquid and the receiving of one or more flavor containers are shown; Figure 13 schematically shows a possibility for marking the flavor containers used; FigureFigures 14a and 14b show a detailed view and an exploded view of an aroma mixer integrated into the drinking device; Figure 15 schematically shows the use of an aroma container for the individual composition of a total aroma consisting of individual aromas; Figure 16 schematically shows an aroma container suitable for insertion into a correspondingly shaped bayonet fitting; Figure 17 schematically shows the insertion of the Fig. 16Figure 18a explains the arrangement of the aroma container in a drinking device according to the invention; Figures 18a and 18 show a single aroma mouthpiece and an aroma mouthpiece on a drinking device according to the invention; Figure 19 shows a schematic sectional view of an aroma mouthpiece attachable to a drinking device; Figures 20a and 20b show the arrangement of an aroma container on the head part of a drinking device according to the invention and the use of the head part; Figure 21 shows a schematic sectional view through a drinking device according to the invention using an aroma ring; Figure 22 shows a schematic top view of a drinking device according to the invention with an aroma ring divided into individual segments; Figures 23a, 23b and 23c show an embodiment of a drinking device according to the invention designed as an open drinking vessel, wherein Fig. 23a a schematic exterior view; Fig. 23bschematically the use of the drinking device according to Fig. 23a shows and Fig. 23c the section marked A in Fig. 23bFig. 24a schematically shows a drinking device according to the invention combined with a conventional drinking bottle as a bottle attachment; Fig. 24b schematically shows the bottle attachment in an enlarged view; Fig. 25a and Fig. 25 show a drinking device according to the invention using a straw, as well as a cross-sectional view through the straw to illustrate the operating principle; Fig. 26a and Fig. 26 show a mouthpiece for a drinking device according to the invention, which enables the bottle to be inverted; Fig. 27a and Fig. 27b schematically show changes according to the invention to the geometry of the liquid channel in the head part; Fig. 28a and Fig. 28b schematically and by way of example show a change according to the invention to the geometry of the liquid channel; Fig. 29 schematically shows a preferred embodiment of the air channel; Fig. 30a and Fig.Fig. 30 shows a preferred embodiment, which schematically and by way of example includes a divisible head section; Fig. 31 shows a preferred embodiment of the divisible head section with an internal aroma reservoir; Figs. 32a, 32b and 32c show various preferred embodiments of the head section of the drinking device, which have modified geometries at the point where the aroma channel enters the liquid channel; and Figs. 33a and 33b schematically show a preferred embodiment of the head section of the drinking device, which includes a device that prevents liquid from entering the air channel. Description of preferred embodiments

[0060] In the following embodiments, the same components are designated with the same reference numbers.

[0061] In Fig. 1A drinking device 10 is schematically depicted, which in the following exemplary embodiment consists of a reservoir 12 filled with pure drinking liquid and a head section 14. Pure drinking liquid is always understood here to mean drinking liquid that does not contain any aroma added by the drinking system according to the invention. The head section 14 has a mouthpiece 16, which in the present case is integrated into the head section, but, as will be explained later with reference to different embodiments, can also be provided separately. An aroma container 20 is located in the head section 14, which is in a flow connection to the ambient air in a manner not shown, and from which an air channel 22 leads for the transport of aromatized air. Furthermore, a transport channel 18 for drinking liquid is provided, which in the present exemplary embodiment extends into the pure liquid present in the reservoir 12, similar to a straw.

[0062] In the embodiment according to Fig. 1 The transport channel 18 for drinking liquid and the air channel 22 for transporting flavored air are connected in series, i.e., the air channel 22 opens into the transport channel for drinking liquid, in which, consequently, in section 18a, both the pure liquid sucked in by the user via the mouthpiece 16 and air bubbles with flavored air are located.

[0063] When using the drinking device 10 according to the invention, both the pure liquid and the aromatized air are ingested orally. In the oral cavity, the liquid and gas phases separate, and the gaseous aromatized air travels via the retronasal pathway 24 in the direction of arrow A to the olfactory mucosa 26, where the aroma is detected by the receptors located in the olfactory mucosa. Through the neuronal processing of the sensory stimuli, the user perceives that the pure liquid being drunk (direction of arrow B) has the flavor added by the aroma.

[0064] At the in Fig. 1In the presented solution, it is important that the flavored air enters the transport channel 18 for drinking liquid as directly as possible at the mouthpiece 16, so that contact between the flavored air and the pure liquid is as brief as possible during drinking. This minimizes unwanted transfer of flavoring substances between the air and the pure liquid, although absorption of the flavoring into the liquid cannot be completely ruled out. The shorter the contact time between the air and the liquid, and also the smaller the total interface between air and liquid, the lower the unwanted transfer of substances.

[0065] To minimize unwanted substance transfer, the arrangement according to Fig. 2as proven advantageous. Here, the transport channel 18 for drinking liquid and the air channel 22 for transporting flavored air are arranged parallel to each other, i.e., no mixing takes place before the mouthpiece 28. The remaining components and the operating principle correspond completely to that described in Fig. 1 schematically illustrated embodiment.

[0066] At the in Fig. 2 The illustrated embodiment further shows that, during intended use, the mouth end extends a short distance into the user's mouth. In according to the representation Fig. 2However, the extension was exaggerated for clarity. The advantage of the mouthpiece 28 extending into the oral cavity is that it minimizes the mixing between the flavored air and the pure liquid. Likewise, it is of course also possible that the mouthpiece 28 is located in the area of ​​the user's lips during intended use.

[0067] In the Fig. 2In the illustrated embodiment, the air channel 22 for transporting flavored air and the transport channel 18 for drinking liquid extend equally far into the user's oral cavity; that is, the transport channel 18 and the air channel 22 both terminate at the same point at the mouth end 28. However, this is not necessarily the case when the transport channel 18 and the air channel 22 are arranged in parallel, and one of the two channels may extend less far into the user's oral cavity than the other. Accordingly, two variants are conceivable.

[0068] In the first variant, the air channel 22 extends further into the oral cavity than the transport channel 18 for the drinking liquid. In this variant (not shown), the user has the sensation of taking the drinking liquid directly onto their lips via the bottle's mouthpiece. However, the flavored air is introduced a short distance into the oral cavity and is therefore only in contact with the pure liquid for a very brief period, so that any transfer of substances between the flavored air and the pure liquid can be virtually eliminated. Furthermore, the geometry and length of the individual channels may also be determined by technical factors to ensure the most even possible intake of pure liquid and flavored air during the drinking process.

[0069] Alternatively, in the same way, only the transport channel 18 for drinking liquid can extend further into the user's mouth, while the air channel 22 for transporting flavored air ends in the area of ​​the user's lips when the user drinks from the drinking device according to the invention. This measure also serves to keep the contact time between the flavored air and the drinking liquid as short as possible and has the advantage that the flavor can already develop in the user's throat.

[0070] In order to use the drinking device according to the invention effectively, it must be ensured that, firstly, the aroma does not escape undesirably during storage of the drinking device, and secondly, that a drinking device already filled with pure liquid cannot leak. Furthermore, the drinking device must have an air channel between the interior of the liquid reservoir and the outside atmosphere. This air channel serves to equalize pressure and introduces a corresponding volume of air into the drinking device, corresponding to the volume of liquid dispensed. This air channel should also be equipped with a suitable shut-off device to prevent any undesired leakage of liquid.

[0071] In the Figs. 3a and 3bAn embodiment is shown in which the mouthpiece is pivotably mounted on the drinking device 10 about a pivot axis 30 and is positioned in the direction of arrow C between the Fig. 3a depicted drinking position and the one in Fig. 3b The mouthpiece is movable back and forth in the sealed position shown. For this purpose, it is equipped with an extension 18b of the transport channel 18 for drinking liquid and an extension 22b of the air channel 22 for transporting flavored air, which is only in the position shown. Fig. 3a In the depicted drinking position, channels 18 and 22 are aligned, allowing the user to draw in drinking liquid and flavored air through mouthpiece 16. In the closed position, as shown in Fig. 3b As shown, a form-fit connection takes place between the drinking device 10 and the mouthpiece 16, creating a high-quality aesthetic impression.

[0072] In contrast to the one in Fig. 3bIn the schematically illustrated embodiment, it is also possible to modify the mouthpiece 16 and the receiving geometry provided for the mouthpiece in the closed state so that, in the sealing state, the extensions 22b and 18b of the transport channels 22, 18 are not open to the outside, so that no unwanted substances can enter the mouthpiece 16 from the outside during the phases in which the drinking device is not used.

[0073] The Figures 4a and 4b The figures schematically show a possible embodiment for a pressure equalization valve for the air channels 32 for the inflow of air for the purpose of pressure equalization. A check valve is used in this process.

[0074] Such a check valve can consist of an elastic component 34 which is fixed on the one hand in a wall 36 of the drinking device according to the invention and on the other hand is provided with an elastic sealing plate 38 which, in the case of negative pressure, as in Fig. 4a As shown, under the influence of the increased external pressure, it deforms in such a way that air can flow into the interior of the storage container through the air channel 32 in the direction of arrow D. Is, as in Fig. 4b As shown, once the pressure equalization has been achieved, the sealing plate 38 lies tightly against the wall 36 from the inside of the container and seals the air channel 32, so that, as shown in Fig. 4b As shown, no outside air can flow into the interior of the storage container 12 in direction E, and at the same time no liquid can flow out through the air channel 32. Should the pressure inside the storage container be higher than the pressure of the outside atmosphere for any reason, the same situation arises as in Fig. 4b This is shown in the image and prevents the unwanted escape of liquid or air from the interior of the container.

[0075] At the in Fig. 5The embodiment shown is a variant of the one described in the Figs. 3a and 3b the illustrated solution using a rotatable mouthpiece. In the embodiment according to Fig. 5 The mouthpiece 16 is movable in the direction of arrow F and back, and is positioned as shown in Fig. 5 As shown, in the drinking position, the mouthpiece 16 protrudes a short distance from the head section 14 of the drinking device 10. To enable movement of the mouthpiece 16, which is designed as a slider, it can be provided on its upper side with a suitable grip aid in the form of ribbing (not shown). The embodiment according to Fig. 5This is a very elegant solution, as after drinking the mouthpiece 16 is moved in the opposite direction to arrow F until the mouth end 28 is flush with the surface of the headpiece 14, which also immediately indicates to the user whether the drinking device is open or closed. Technically, the solution can be described as follows: Fig. 5 This is achieved by having the transport channels 18 and 20 extend axially in the direction of the drinking device towards the mouthpiece and only in the Fig. 5 The mouthpiece 16, in its extended position as shown, aligns with the extensions of the transport channels 18 and 22 arranged in the mouthpiece. This could be achieved, for example, by using an eccentric, so that opening and closing is enabled by a rotary movement.

[0076] In the Fig. 6A further embodiment of the invention is shown using a rotating lid 40, which is screwed onto the storage container 12 and thereby tightly seals the mouth end 28 with the transport channel 18 for drinking liquid and the air channel 22 for transporting flavored air to the outside. Furthermore, the rotating lid 40 can also extend over the body of the storage container 12 to such an extent that, when the lid is screwed on, a Fig. 6 The inlet opening to the air channel for pressure equalization, not shown, is also sealed. The advantage of a lid is that it protects the mouthpiece 28 from contamination and, due to the pressure resistance of a screw connection, is also suitable for securely sealing the drinking device 42 filled with a carbonated liquid.

[0077] The in Fig. 7The illustrated variant of a closing device has a pull-tab 44 located in the head 14. When the user pulls the pull-tab out in the direction of arrow G, the drinking opening 10 is activated. To seal the bottle tightly, the pull-tab 44 is pushed back towards the head 14 in the opposite direction to arrow G. The position of the mouthpiece, designed as a pull-tab 44, indicates to the user that they do not need to tilt the bottle to drink. A coding / marking system, for example using different colors, could also clearly indicate to the user that the pull-tab is in the extended position and therefore the drinking opening is not tightly sealed.

[0078] In Fig. 8A further solution using a rotary plug is shown schematically. The rotary plug 46 can be used both as a sealing device and as a throttling device to throttle the volume flow of drinking liquid through the transport channel 18 and the volume flow of flavored air through the air channel 22. The schematic in Fig. 8 The illustrated rotary plug 46 is rotatably arranged in the head of the drinking device and can be moved by the user in the direction of rotation H by operating the handwheel 50. Part of the rotary plug 46 is a shaft 52 rotatably guided in the housing, in which through-openings 48a and 48b are located, which are in the Fig. 8In the depicted orientation, the openings 48a and 48b do not align with the transport channel 18 for drinking liquid and the transport channel 20 for flavored air. However, if the shaft 52 is rotated approximately 90° in the direction of arrow H by actuating the rotary plug 46, openings 48a and 48b align with channels 22 and 18, thus opening the flow connections. Alternatively, the rotary plug can be used to reposition openings 48a and 48b so that only a portion of their cross-sectional area is available for air and liquid flow. In this way, the rotary plug can also be used for throttling.

[0079] By alternatively using a rotary stopper 46 with X-shaped channels, the ratio of drinking liquid to flavored air can be varied. For this purpose, the openings 48b in the rotary stopper and the X-shaped channels for transporting drinking liquid each have the same flow cross-section, while the X-shaped channels for transporting flavored air have different flow cross-sections. This is shown schematically in the detailed views in Fig. 8As shown, opening 48a and the subsequent channel have a larger flow cross-section than opening 48c and the subsequent channel. Consequently, by selecting the rotational position of the rotary plug, a user can, on the one hand, close the transport channel 18 and the air channel 22, and on the other hand, with transport channel 18 open for the drinking liquid, adjust the flow cross-sections for the air channel 22 and thus reduce the amount of flavored air.

[0080] The advantage of the rotary plug is therefore that the flow rate can be adjusted continuously and the operation of the locking device is intuitive for every user.

[0081] According to another embodiment, not shown, a sports valve can be provided in which, similar to the embodiment according to Fig. 7The mouthpiece is moved axially between the closed and open positions. Actuating the mouthpiece can simultaneously open and close not only the transport channel 18 for drinking liquid and the air channel 22 for transporting flavored air, but also the air channel 32 for pressure equalization. As with sports valves known in the art and commercially available, the mouthpiece is pulled out when the drinking device is to be put into the drinking position and pushed back towards the reservoir when the drinking device is to be sealed. Unlike known drinking vessels with sports valves, however, it is not necessary to invert the drinking device while drinking, as the drinking liquid and the flavored air are drawn in by the user.

[0082] The use of an integrated valve is in the Figs. 9 and 10 depicted. In the Fig. 9The integrated valve is shown with a separate air channel 22 for transporting flavored air and a transport channel 18 for drinking liquid, while in Fig. 10 Transport channels 18 and 20 are connected in series, as shown schematically in the Fig. 1 was depicted.

[0083] If one turns to the Fig. 9 It becomes clear that the mouthpiece 16 of the drinking device can be pulled out and pushed back in relative to the head part 14 in the direction of arrow J. In the Fig. 9In the extended state shown, the transport channel 18 and the air channel 22 are open, allowing drinking from the drinking device. Simultaneously, the air channel 32 is also open for pressure equalization. If the mouthpiece 16 is now moved towards the headpiece 14 until it rests firmly against the headpiece 14, the opening of the air channel 32 is tightly closed by the projection 54 on the mouthpiece 16. Furthermore, the displacement of the mouthpiece 16 relative to the headpiece interrupts the airflow connection from the headpiece to the mouthpiece at the point where the air channel 22 enters the mouthpiece 16, thus closing the air channel 22. Additionally, the movement in the direction of arrow K also closes the transport channel 18 for drinking liquid, so that, with the aid of the Fig. 9The integrated valve shown allows the transport channel 18 for drinking liquid, the air channel 22 for transporting flavored air, and the air channel 32 for pressure equalization to be opened and closed simultaneously. The components in the Figs. 9 and 10 The depicted shape of the mouthpiece in the area of ​​the mouth end is only schematic and can of course have any shape that is ergonomic for the user.

[0084] The mouthpiece 16 can be locked in the closed position by means of positive locking elements in the form of, for example, locking nipples 15a, 17a and corresponding recesses 15b and 17b, which are located in Fig. 10 are shown.

[0085] The design according Fig. 10 differs from the one after Fig. 9The only difference is that in the mouthpiece 16, the air channel 22 for transporting flavored air does not extend to the mouth end 28, but instead opens into the transport channel 18 for drinking liquid in the mouthpiece area. Otherwise, however, the embodiment differs according to Fig. 10 not from the one after Fig. 9 , so that with regard to the operating principle of the sealing device, the explanations according to Fig. 9 can be referred.

[0086] The embodiment according to Figs. 11a and 11b The sealing device is integrated into the aroma container 20. The aroma container is pressed against the pressure of a spring 56 with the aid of a finger in the direction of arrow L in order to extend the continuation 18b of the transport channel 18 for drinking liquid provided in the aroma container 20 into the Fig. 11bto bring the illustrated flush connection with sections 18a and 18c of the transport channel for drinking liquid. It is conceivable that the liquid connection through the transport channel 18 exists only as long as a user actually presses their finger on the aroma container 20 from the outside. However, it is also possible, similar to the locking mechanism of a ballpoint pen, to provide a detent position, so that, as in Fig. 11b As indicated by the double arrow L, pressing it again returns the aroma container to the Fig. 11a returns to the depicted starting position.

[0087] According to an alternative embodiment, not shown, it is also possible to use, instead of the one described in the Figs. 11a and 11b The illustrated translational movement L allows the aroma container to be rotatably positioned so that it is comparable to the one shown in the Fig. 8The solution shown uses a rotary plug to allow the aroma container to be rotated between a locked position and at least one drinking position. Different rotation angles could connect different openings of the aroma container, each with a different cross-sectional size, to the air channel 22. This would allow control of the amount of aromatized air and thus the flavor intensity. Possible positions would be "off," "medium," and "strong," requiring an aroma container with two differently sized holes. In the third position, the air channel 22 would be closed, allowing the liquid to be consumed without air or added aroma. An additional advantage of this solution is that the aroma container also serves as the seal, thus requiring fewer components.

[0088] According to another embodiment, not shown, a shut-off device can also be designed using a pinch mechanism. For this purpose, a section of the channel to be sealed, for example, the transport channel for drinking liquid, must be provided with a flexible hose that is pinched, for example, by a wheel arranged to rotate and slide in a groove, thereby throttling or interrupting the flow. This technical solution meets hygienic requirements because there is no direct contact between the shut-off wheel and the substance conveyed in the transport channel. Therefore, this solution is also used, for example, in the medical field to adjust the transport volume of infusion fluids. If the actuating wheel is largely recessed in the head of the drinking device, this technical solution allows for a low-profile design.

[0089] In the embodiments shown above, for the sake of simplicity, only a single aroma container was provided, which was arranged in the head part of the container.

[0090] All embodiments have in common that the drinking device can be designed such that, for example, the base of the drinking device contains a further receiving geometry for at least one additional flavor container, which can be exchanged for the existing flavor container as soon as the flavor container in use is exhausted or the consumer wishes to change the flavor. In the Figs. 12a, 12b, 12c and 12d Each embodiment is shown schematically in a top view of the storage container 12, which is rotatably connected to a centrally arranged rotary joint 58 via a [missing information] in the Figs. 12a to 12dThe head section, not shown, can be connected. A top view shows that each of the storage containers 12 has a filling opening 60 for drinking liquid. In the embodiments according to the Figs. 12b and 12c In each case only a single aroma container 20 is provided, whereas in the embodiments according to Figs. 12a and 12d Three aroma containers (20) are used in each case, although a different number of aroma containers is also possible.

[0091] The corresponding recordings 66 for the aroma containers 20 are included in Fig. 13 evident. As also in Fig. 13As can be seen, the aroma containers 20 can be provided with a marking tab 62 which, after the aroma containers 20 have been inserted flush into the corresponding receptacle 66 in the storage container 12, allows them to be removed. Furthermore, the marking tabs 62 can be arranged so that they extend beyond the storage container 12 and thus inform the user about the aroma used.

[0092] When using multiple aroma containers, rotating the one in Figs. 12a to 12d as well as Fig. 13The user can select between the different flavors by adjusting the head section (not shown) relative to the body of the reservoir 12. For this purpose, the head section is equipped with corresponding markings or a locking mechanism (not shown) that allows the user to establish the airflow connection of the air channel 22 from one of the several flavor reservoirs to the mouthpiece of the drinking device. In this way, the flavor can be changed even while drinking. Likewise, by deliberately positioning the head section in a way that prevents a continuous connection between any of the air channels 22, the user can also consume only the liquid.

[0093] During the Figs. 14a and 14b The illustrated embodiment may differ from the embodiment according to the Figs. 12a to 12d as well as Fig. 13A mixture of individual flavors is produced. For this purpose, a mixing device 64 is arranged between the storage container 12 and the head part 14 with mouthpiece 16, which in the exemplary embodiment according to Fig. 14a The device comprises three different receptacles for aroma containers 20, each inserted into the mixing unit 64, which is designed as an intermediate plate. In this way, a mixed aroma can be produced from various aroma substances, which is drawn off via the mixing ring 68 and supplied to the mouthpiece via the adjoining air channel 22 in the head section 14.

[0094] The in the Figs. 14a and 14b The technical solution presented offers the advantage that a user can create their own flavor combinations.

[0095] In the Fig. 15An alternative design is shown in which the aroma container 20 is divided into individual segments 20a, 20b, and 20c and is closed at the top by means of a lid 70. A user can freely combine the individual aromas, which are placed in the individual segments 20a, 20b, and 20c, and from which a mixture is produced.

[0096] Where the above description refers to different aromas, this term also includes individual aromas that contain the same flavor but have a different intensity of flavor.

[0097] The embodiment according to Fig. 16Figure 1 outlines a mounting option for an aroma container 20, which is provided with a spring 56 on its lower side. The circumferential wall of the essentially circular cylindrical aroma container 20 has, in addition to the aroma hole 72 shown here, a guide 74, which is a groove with two sections arranged at an angle to each other. The first section 74a runs parallel to the axis of rotation of the circular cylindrical aroma container, whereas the second section 74b adjoins the first section 74a and extends circumferentially to an end surface 74c. A possible associated storage container 12 is shown in Figure 1. Fig. 17 depicted and shows similarities to the one in Fig. 12c The geometry shown features a filling opening 60 shaped essentially in the form of a semicircular segment and a receptacle 66 for the [unclear text]. Fig. 16The aroma container shown has a projection 76 on the circumferential wall of the receiving chamber 66, which is arranged and designed to move within the guide 74 when inserted. The storage container according to Fig. 17 However, it could also be designed in such a way that no bayonet connection is required between the receiving chamber 66 and the aroma container 20, since by attaching a Fig. 17 The aroma container is fixed to the depicted head section.

[0098] When the aroma container is inserted, it is initially positioned at the correct angle relative to the projection 76 in the axial direction L, whereby the projection 76 passes through the first section 74a of the guide 74 and is then moved by a rotation in the direction of arrow M relative to the receiving chamber 66, so that the projection 76 runs within the guide 74 in the second section 74b and up to the stop surface 74c. As soon as the projection 76 abuts the stop surface 74c, the aroma hole 72 is in flow communication with the air duct.

[0099] In the embodiment according to Fig. 18a, 18b as well as Fig. 19 A separate mouthpiece 16 is shown, into which, as is best done in Fig. 19As shown, an aroma container 20 can be directly inserted. In this solution, the aroma container does not need to be replaceable, since instead of replacing the aroma container, the mouthpiece itself is replaced. Replacing the mouthpiece together with the aroma container improves hygiene and also reduces the number of individual parts, as well as simplifying the use of the drinking device according to the invention. Regarding the attachment of the mouthpiece to the head of the drinking device, any solution can be used, as long as the necessary seal exists between the mouthpiece and the head of the drinking device.

[0100] The schematic embodiment according to Figs. 20a and 20bFigure 1 shows a drinking device according to the invention, depicted as if the housing were transparent. The drinking device 10 again consists of a reservoir 12 and a head 14. By means of a rotatable connection 58, which in this example is shown as a threaded bolt with a lock nut, the head 14 can be rotated relative to the reservoir in the direction of arrow P. The aroma container 20 is inserted in the head 14, and the air channel 22 for transporting aromatized air opens into the transport channel 18b for drinking liquid. However, this is completely irrelevant for understanding this embodiment, since the air channel 22 could be routed parallel to the transport channel 18b to the mouthpiece 28 in the same way.

[0101] When the head section 14 is rotated relative to the storage container 12, as shown in Fig. 20bAs shown, sections 18a and 18b of the transport channel for drinking liquid, as well as the air channel 32 located in the head section, are brought into flow connection with air channel section 32b, so that in the Fig. 20b In the configuration shown, the drinking device is in an operational state. Since the separating plane 78 between the reservoir 12 and the head section 14 is not perpendicular to the cylindrical outer wall of the reservoir 12, but rather arranged at an angle to it, the following changes, as shown in Fig. 20b compared to Fig. 20a The figure shows the position of the headpiece 14 between the sealed storage position and the drinking position. This allows the user not only to be shown whether the drinking device is in the drinking position, but also to be positioned in the most ergonomic way possible for drinking.

[0102] During the Figs. 21 and 22In the illustrated embodiments of the drinking device according to the invention, an aroma container 20 is used, which is designed as an aroma ring and is placed on the head part 14 in the immediate vicinity of the mouthpiece 28. In the exemplary embodiment according to Fig. 21 and Fig. 22 At the mouth end 28 there is only a single opening, namely the transport channel 18 for drinking liquid, since, as in Fig. 21 It is evident that the air channel 22 opens into it shortly before the mouthpiece. Similarly, when using an aroma ring, it is also possible to run the transport channel 18 for drinking liquid and the air channel 22 for transporting aromatized air parallel to the mouthpiece 28.

[0103] The ring-shaped aroma container 20 is divided into various segments 20a, 20b, 20c, and 20d, which can contain different aroma strengths or flavors. The marking 78 on the top part 14 of the container indicates to the user which aroma chamber is in use. If the marking 78 is not aligned with the respective marking 80 on the individual chambers, the following may occur in the embodiment according to Figs. 21 and 22 However, the connection between the aroma container and the transport channel 18 could also be blocked, preventing the user from consuming flavored drinking liquid via the system according to the invention. The aroma container could simply be frictionally engaged in a corresponding recess in the head section 14, thus enabling particularly easy and convenient handling for the user.

[0104] In contrast to the one in the Figs. 21 and 22In the illustrated embodiment, it is of course also possible to provide an undivided aroma ring and consequently offer the consumer only a single flavor. Regardless of the number of chambers, the ease of exchange and handling by the user is advantageous. In the case of several different flavor types, the user can change the flavor while drinking, but can also move the ring to a position where no flavor is dispensed and the air channel 22 for transporting flavored air is closed, preventing air bubbles from entering the water and thus creating different mouthfeel sensations for the user.

[0105] During the Fig. 23a , 23b and 23cIn the illustrated embodiment, the drinking device 10 is an open-topped drinking cup. In this embodiment, the aroma container 20 is depicted as a ring that surrounds the storage container 12 on its outer circumference and is either, as shown in Fig. 23c as shown, is connected via a short air channel 22 for transporting flavored air to the transport channel 18 for drinking liquid, or, as shown in Fig. 23c (Not shown) has an air channel that runs parallel to the transport channel for drinking liquid and extends to the mouthpiece 28. When using the drinking cup, as shown in Fig. 23b The drinking liquid is shown from the mouth end 28 (see Fig. 23a ) sucked in, whereby, as in Fig. 1As depicted, the drinking liquid mixed with air bubbles of flavored air is drawn in. Here again, a parallel routing of the transport channel 18 for the drinking liquid and the air channel 22 for the flavored air is conceivable.

[0106] One variant of the in Fig. 23a The open drinking vessel shown could be a shot glass, which works on the same principle as the open drinking vessel and can also be used, for example, for spirits that are to be given additional flavor aromas.

[0107] In the Figs. 24a and 24bA further embodiment of the invention is shown. The special feature of this embodiment is that the head 14 can be screwed onto any bottle serving as a storage container 12. An aroma container is permanently installed in the head 14, which transports the aromatized air via an air channel 22 (not shown) either parallel to the transport channel 18 for drinking liquid to the mouthpiece 28, or, as shown in the schematic diagram in Fig. 1 shortly before the mouth end 28 opens into the transport channel 18. In the embodiment according to Figs. 24a and 24bA conventional bottle containing pure drinking liquid can be used, which can be reconfigured as desired by exchanging the head 14 with the associated suction tube 80. This embodiment is particularly advantageous in regions where the tap water is not potable due to insufficient quality, allowing consumers to purchase pure water as a drinking liquid, which can then be modified to any desired flavor via the bottle attachment.

[0108] Another embodiment of the invention is shown schematically in the Figs. 25a and 25bAs shown, in this embodiment, the drinking device 10 according to the invention consists of the reservoir 12, designed as an open glass, and a drinking straw 82 to be arranged in the reservoir. The straw incorporates the components and functionality of the intake hose 80, the transport channel 18 for drinking liquid, and, due to the aroma container 20 arranged in a ring around the straw, also the air channel 22 for transporting aromatized air. Similar to the preceding embodiment using a bottle attachment, the drinking straw 82 can be combined with any reservoir 12, the aroma container 20 preferably being permanently attached to the straw and not interchangeable.

[0109] In the Figs. 26a and 26bFinally, an embodiment is shown in which the illustrated head part 12 of the drinking device 10 (not shown) can be turned upside down during drinking, as consumers are familiar with, for example, drinking devices using a sports valve. The special feature of the embodiment according to Figs. 26a and 26b The advantage lies in the fact that neither a suction tube 80 nor a drinking straw 82 is required. Without these elements, the drinking system according to the invention is easier to handle hygienically. Furthermore, this embodiment reduces the number of individual components, thereby simplifying manufacturing and shortening the assembly time of the system. Moreover, consumers of conventional systems are accustomed to tilting their drinking bottles. Due to the in Figs. 26a and 26bIn the system shown, unlike the previously described embodiments, no liquid is unintentionally spilled from the reservoir 12 under normal handling conditions. The system shown in Figs. 26a and 26b The illustrated head section 14 can be connected to a reservoir 12 via the illustrated thread 84 or another fastening option, ensuring that the connection prevents liquid leakage. A check valve 85, such as those found in [reference to product], can be fitted to equalize pressure between the inner and outer areas of the drinking device 10. Figs. 4a and 4b is shown.

[0110] In the Fig. 26aIn the illustrated embodiment, the aroma reservoir is shown as a wide ring 83, the operating principle of which corresponds to the aroma reservoir 20. The aroma reservoir is fluidically connected via the air channel 22. A sliding mouthpiece, not shown here, must be inserted into the opening 86. This mouthpiece corresponds to a conventional mouthpiece of a sports water bottle and must be made of a substantially flexible material. By sliding it in the direction of K, the mouthpiece (not shown) opens and closes the drinking device 10.

[0111] In the Fig. 27a and Fig. 27b Figure 1 shows a preferred embodiment of the drinking device according to the invention with a modification of the liquid channel 18 at the mouthpiece 16 in the head part 14 of the drinking device. This modification enables, through the Fig. 27a shown tapering 19 or the one in Fig. 27bThe extension 23 of the channel at the mouthpiece 16 shown changes the pressure conditions in the liquid-air mixture. This alters the shape and size of the air bubbles and results in a more pleasant drinking sensation.

[0112] Another preferred embodiment of the improvement of the drinking device 10 is in the Fig. 28a and Fig. 28b The preferred embodiment of the improvement according to the invention provides that the liquid channel 18 in the reservoir 12 of the drinking device 10 is tapered ( Fig. 28a - Item 21) or extended( Fig. 28b- (item 25). This allows for a constant or variable suction pressure at different fill levels of the reservoir 12. The required suction pressure is essentially determined by the hydrostatic pressure of the liquid and the frictional loss of the fluid at the wall of the liquid channel 18. According to Pascal's law, the hydrostatic pressure is directly proportional to the fill level in the reservoir 12 and noticeably influences the suction pressure required by the drinker. By changing the geometry of the liquid channel 18, this negative change can be partially or completely compensated for, thus improving the drinking experience. Furthermore, the pressure differences can be reduced by using a reservoir that is essentially wide and therefore shallow (not shown here).

[0113] Another one, in Fig. 29The preferred embodiment of the drinking device 10 shown provides that the air channel 22 in the head section 14 is tapered only at one point 27 and otherwise has a wider cross-section. This has the advantage that, despite the required small cross-section, in particular diameter, of the air channel 14, manufacturability and cleaning are facilitated. For example, in the Fig. 29 In the exemplary embodiment shown, liquid that enters the air channel 22 from the liquid channel 18 can easily flow back into the liquid channel 18, resulting in hygienic advantages.

[0114] Another preferred embodiment is in Fig. 30a and Fig. 30bschematically represented. An example solution is shown here in which the head section 14 can be divided essentially axially symmetrically into two parts 14a and 14b. Both parts 14a and 14b each contain on their inner surfaces a portion of the air channel 22 and the liquid channel 18, which, when the two halves 14a and 14b are joined along the direction of arrow C, form the channels required for the drinking device. A fastening device 29, which is located in the Fig. 30a and Fig. 30b The preferred embodiment, exemplified as a ring, can be reversibly held together by a displacement in the direction of arrow D onto the two parts 14a and 14b. Fig. 30b The divisible head section 14 is shown in the drinking position. The recess 66 for the aroma reservoir 20 (not shown) is also cylindrical. A seal can be achieved by manufacturing the head section 14 from a substantially flexible material.

[0115] Another preferred embodiment of the divisible head section 14 is in Fig. 31 The recess 66 for the aroma reservoir 20 is also possible in the head section. Integrating it into the interior of the head section offers the advantage that the aroma reservoir 20 is not visible from the outside when the head section is closed. This allows the aroma reservoir to be less complex in design and slows down the evaporation of the aroma substance from the aroma reservoir during storage. The aroma reservoir is inserted by joining the two parts 14a and 14b along the direction of arrow E. The two parts of the head section 14 are held together by a mechanism not shown here.

[0116] Another embodiment for optimizing a drinking device according to the invention is exemplified in the Figs. 32a, 32b and 32c shown. A preferred embodiment is shown in Fig. 32aThe head section 14 of a drinking device is shown, which contains a liquid channel 18 and an air channel 22. In Fig. 32a The diagram shows a fluid channel with a uniform shape along its entire length.

[0117] However, in Fig. 32bA preferred embodiment of a head section 14 of a drinking device is shown, in which the liquid channel 18 has a smaller diameter at the junction of the liquid channel 18 with the air channel 22 than at other points. This alters the flow conditions of the liquid in the liquid channel 18 when the drinking device is used. Due to the narrowing, the dynamic pressure (stagnation pressure) is at its maximum and the static pressure of the liquid is at its minimum at the inlet point. The velocity of the liquid increases proportionally to the cross-sectional area as it flows through the constricted section, since the volume of liquid remains constant. Simultaneously, the pressure in the air channel 22, which is located at the narrowest point, decreases. This creates a pressure difference that increases the absorption of the flavored air into the liquid in the drinking device.This means, for example, that the user needs to suck less hard on the drinking device, thus improving the drinking experience. This effect, known as the Venturi effect, significantly improves the drinking device.

[0118] Another preferred design is in Fig. 32c The design is shown by way of example and provides that a liquid channel 18 and an air channel 22 are arranged in the head section 14 of the drinking device, wherein at the connection point of the two channels at least one of the two channels is enlarged compared to the cross-section of the other areas of the respective channels. This also enables a modified drinking sensation for the user of the drinking device.

[0119] Another preferred embodiment of the headboard 14 is in Figs. 33a and 33bThe embodiment shown is an example and provides that the air duct 22 is interrupted by a chamber 87, which is essentially designed as a recess in the outer wall of the liquid duct 18. The interruption of the air duct by the chamber 87 is designed such that a recess is provided in the head section 14 of the drinking device at the contact point between the removable riser pipe 18 for the drinking liquid (liquid duct) and the air duct 22. In the embodiment shown, the air duct 22 opens from the aroma reservoir 20 into the chamber 87 at a top position. On the opposite side, the air duct continues as duct 22b through the transport duct 18 at a bottom position of the chamber 87. This chamber design prevents the drinking liquid from flowing back into the aroma reservoir 20. The opposite position of the continuation of the air duct 22 ensures optimal use of the chamber 87.The different height positions of the inlet and outlet openings of the air duct 22 into and out of chamber 87 allow, among other things, drinking liquid to flow back into the transport duct 18 for drinking liquid. The arrangement of chamber 87 at the contact point between the head section 14, which can be made of a substantially elastic material, for example, and the transport duct 18 for drinking liquid facilitates cleaning after disassembly of the components. Furthermore, in . Fig. 33a and Fig. 33b The air supply line 32 through the head section 14 into the reservoir 12 (not shown) for drinking liquid is shown. Fig. 33b shows the embodiment of the head part 14 of the drinking device according to Fig. 33a in cross-section, which clarifies the positions of chamber 87 and the entry point of air duct 22 as well as the exit point from chamber 87 into the continuation of air duct 22b.

[0120] All these formulations share the common feature that the aroma is ingested solely orally, thus preventing an orthonasal olfactory sensation. Due to the oral ingestion, the taste perception for the user arises exclusively from retronasal perception of the aroma substance and, if any, is absorbed by the consumer via the enteral route only in negligible amounts. Complex aromas and aroma mixtures can also be produced that do not require long-term stabilization in the drinking liquid and are not swallowed by the user. Other embodiments

[0121] 1. Drinking device for retronasal ingestion of a flavoring substance, comprising: a reservoir (12) for drinking liquid; at least one air-permeable flavoring reservoir (20); and a transport channel (18) for drinking liquid extending from the reservoir (12) to a mouth end (28) of the drinking device (10); and an air channel (22) for transporting flavored air, extending from at least one of the at least one flavoring reservoir (20) to the transport channel (18) for drinking liquid or to the mouth end (28). 2. Drinking device according to embodiment 1, characterized in that the mouth end (28) is designed such that the transport channel (18) for drinking liquid and the air channel (22) for transporting flavored air extend separately from each other and substantially the same distance in the longitudinal direction at the mouth end (28). 3.Drinking device according to embodiment 1, characterized in that the mouthpiece (28) is designed such that, when the drinking device (10) is used, the transport channel (18) for drinking liquid and the air channel (22) for transporting flavored air extend to different distances into the user's mouth. 4. Drinking device according to one of the preceding embodiments, further comprising a throttling device and / or sealing device, preferably in a mouthpiece (16) comprising the mouthpiece (28), wherein the mouthpiece (16) is preferably movable from a sealing position to a non-sealing position. 5. Drinking device according to one of the preceding embodiments, characterized in that the head (14) is divisible. 6.Drinking device according to embodiment 4 or 5, characterized in that one of the at least one, preferably removable, aroma container (20) comprises the sealing device, wherein the aroma container (20) is movable from a sealing position to a non-sealing position. 7. Drinking device according to one of the preceding embodiments, characterized in that at least one of the at least one aroma container (20) comprises several chambers (20a, 20b, ...) containing aroma substances of different odor intensity and / or different aromas. 8. Drinking device according to one of the preceding embodiments, characterized in that one of the at least one aroma container (20) is located in a mouthpiece (16) of the drinking device (10), wherein the mouthpiece (16) is preferably interchangeable. 9.Drinking device according to one of the preceding embodiments, further comprising a pressure equalization valve (34, 38) that closes an air supply line (32) leading into the interior of the reservoir (12) for drinking liquid. 10. Drinking device according to one of the preceding embodiments, further comprising a head part (14) of the drinking device (10) which includes the mouth end (28) and is movably arranged relative to the reservoir (12), wherein the head part (14) is movable from a position sealing the transport channel (18) for drinking liquid and / or the air channel (22) for transporting flavored air to a non-sealing position. 11.Drinking device according to one of the preceding embodiments, characterized in that the at least one aroma container (20) comprises a filter substance and a user-activated aroma unit, which contains a fluid with an aromatizing substance, wherein the fluid can be released into the filter substance upon activation of the aroma unit. 12. Drinking device according to one of the preceding embodiments, characterized in that the air channel (22) comprises a chamber (87), preferably annular, which is preferably arranged between a removable head part (14) of the drinking device (10) and the transport channel (18) for drinking liquid. 13. Drinking device according to one of the preceding embodiments, characterized in that the air channel (22) has a minimum cross-sectional area between 0.2 mm² and 4.9 mm². 14.Drinking device according to one of the embodiments a 1-12, further comprising a permeable membrane in the air channel (22), preferably at the opening of the air channel into the transport channel (18) for drinking liquid.

Claims

1. Drinking device for retronasal ingestion of a flavoring substance, comprising: - a reservoir (12) for drinking liquid; and - a headpiece (14) attachable to the reservoir, comprising a mouthpiece (16) with a mouth end (28), wherein - an flavoring container (20) is integrated into the mouthpiece (16) or the headpiece (14); - the flavoring container (20) is permeable to air; and the mouthpiece (16) or the headpiece (14) further comprises: - a transport channel (18) for drinking liquid extending from the reservoir (12) to a mouth end (28) of the drinking device (10); as well as - an air channel (22) for transporting flavored air, which runs from the flavor container (20) to the transport channel (18) or - an air channel (22) for transporting flavored air, which runs from the flavor container (20) to the mouth end (28), wherein the air channel (22) for transporting flavored air runs separately from the transport channel (18) for drinking liquid to the mouth end (28).

2. Drinking device according to claim 1, characterized by the fact that the reservoir (12) for drinking liquid is designed to be refillable.

3. Drinking device according to claim 1 or 2, characterized by the fact that the mouthpiece is replaceable.

4. Drinking device according to one of the preceding claims, further comprising a lid which can be attached or screwed on in such a way that the lid seals the drinking device.

5. Drinking device according to one of the preceding claims, characterized by the fact that The transport channel for drinking liquid and the air channel for transporting flavored air run the same distance longitudinally at the mouth end.

6. Drinking device according to one of the preceding claims, characterized by the fact that the head section (14) can be rotatably attached to the reservoir (12) for drinking liquid.

7. Drinking device according to one of the preceding claims, characterized by the fact thatThe aroma container is designed as a ring, preferably located near the mouth end of the drinking device.

8. Drinking device according to one of the preceding claims, characterized by the fact that the transport channel (18) is designed as a straw.

9. Drinking device according to one of the preceding claims, characterized by the fact that the head section (14) is divisible, disassemblable or hinged, wherein the head section preferably consists of one, two or more parts which can be joined together for use of the drinking device.

10. Headpiece (14) for a drinking device for retronasal ingestion of an aroma substance, wherein the headpiece (14) is attachable to a reservoir (12) for drinking liquid of the drinking device, comprising: - a mouthpiece (16) with a mouth end (28), wherein - an aroma reservoir (20) is integrated into the mouthpiece (16), the aroma reservoir (20) being permeable to air; and the mouthpiece (16) further comprising: - a transport channel (18) for drinking liquid extending from the reservoir (12) to a mouth end (28) of the drinking device (10); and - an air channel (22) for transporting aromatized air extending from the aroma reservoir (20) to the mouth end (28), the air channel (22) for transporting aromatized air extending separately from the transport channel (18) for drinking liquid to the mouth end (28).

11. Head section (14) for a drinking device for retronasal absorption of an aroma substance according to claim 10, characterized by the fact thatThe headpiece can be screwed onto a drinking device.

12. Head section (14) for a drinking device for retronasal absorption of an aroma substance according to claim 10 or 11, characterized by the fact that the transport channel (18) is designed as a straw.

13. Drinking device with a head part (14) according to one of claims 10 to 12.

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