Adapter for a straw

Abstract

The present disclosure relates to an adapter (1) for a drinking straw (80), comprising: a hollow element (10) having a mouth end (11) for being received in the mouth of a user, a distal end (12) opposite to the mouth end (11), an inner surface (13), and a stop portion (20); and an aroma channel (16) for being connected with an aroma source (50); wherein the adapter (1) is configured such that, when the hollow element (10) is mounted on the drinking straw (80) by inserting at least a part of the straw (80) into the hollow element (10): the stop portion (20) abuts a proximal end (81) of the straw (80); a contacting portion of the inner surface (13) contacts a part of the outer surface of the straw (80); and when the user additionally sucks on the mouth end (11): a drinking fluid, preferably a liquid such as water, can be provided to the user via the straw (80) to mouth of the user; and an aroma fluid, preferably a gas such as air comprising an aroma substance, can be provided to the mouth of the user via the aroma channel (16).

Description

[0001] ADAPTER FOR A STRAW

[0002] Technical field

[0003] The present invention relates to an adapter for a drinking straw, an adapter set including the adapter and an aroma container, a system comprising the adapter set and a drinking straw.

[0004] Technical background

[0005] Providing drinking fluids with a pleasant taste, e.g., byway of providing aroma to the user when consuming a drinking fluid is known. A bottle is typically equipped with an aroma pod. Aroma pods are devices designed to enhance the sensory experience of drinking fluids by infusing them with delightful scents. These pods typically consist of a compact container filled with aromatic substances, often in the form of oils or fragrance compounds. The design of aroma pods allows for integration with drinking bottles, enabling users to customize the aroma of their beverages according to their preferences.

[0006] Aroma pods allow for a controlled release of aromatic compounds into the fluid contained within the bottle. This release is typically facilitated by various methods such as diffusion, evaporation, or mechanical activation. Overall, provision of aroma pods to bottles for drinking provides sensory enjoyment, that enable users with improved ways to personalize and elevate their drinking experience by infusing their beverages with delightful aromas.

[0007] Known solutions of providing drinking liquids with flavor substances are described for instance in WO 202 / 2111808 Al and EP 3 944792 Al. WO 202 / 2111808 Al discloses a drinking device for the retro-nasal olfaction of an aroma substance. EP 3 944792 Al discloses a drinking device consisting of a drinking straw with an inner flow channel and a flavor container connected to the drinking straw for adding a substance to a stream of air flowing out of the flavor container. The drinking device can be mounted on a drinking straw. The drinking device has a conical surface for the straw to slide in. Both known solutions make use of an aroma substance entering the user’s mouth together with the drinking liquid. Subsequently, the aroma substance rises retronasally via the pharynx to the olfactory mucosa, where it is detected by the receptors located there and perceived by the user. The users therefore get the impression that they are tasting the aroma, although they only smell it retro-nasally.

[0008] The above-mentioned devices have some drawbacks: the devices are quite large and cumbersome to deal with. Further, mounting of the drinking device to the straw may be difficult and may not always lead to optimum results. There is thus a need for improvement. Against this background, an object of the present invention is to address one or more or all of the above-mentioned disadvantages.

[0009] Particularly, it is an object of the present invention to provide an adapter that can be mounted on a drinking straw. The adapter should provide for aroma fluid to be delivered to the user. The adapter should be compact and small in size. The adapter should allow for improved mounting on the straw. It is a general objective to provide an improved adapter that allows for aroma fluid to be provided to the user with any conventional straw. It is a general objective to provide an adapter that can be easily manufactured and is cost-effective.

[0010] Summary of the invention

[0011] The above-mentioned objects and other objects, which become apparent from the following description, are solved by the subject-matter of the independent claims. Preferred embodiments are subject of the dependent claims.

[0012] First aspect of the adapter

[0013] A 1stembodiment of the invention is directed to an adapter for a drinking straw, comprising: a hollow element having a mouth end for being received in the mouth of a user, a distal end opposite to the mouth end, an inner surface, and a stop portion; and an aroma channel for being connected with an aroma source; wherein the adapter is configured such that, when the hollow element is mounted on the drinking straw by inserting at least a part of the straw into the hollow element: the stop portion abuts a proximal end of the straw; a contacting portion of the inner surface contacts a part of the outer surface of the straw; and when the user additionally sucks on the mouth end: a drinking fluid, preferably a liquid such as water, can be provided to the user via the straw to mouth of the user; and an aroma fluid, preferably a gas such as air comprising an aroma substance, can be provided to the mouth of the user via the aroma channel.

[0014] In this manner, an improved adapter for a drinking straw is provided. The adapter has the advantage that it can be flexibly and conveniently mounted on a straw. The adapter facilitates that a drinking fluid and an aroma fluid may be provided substantially at the same time to the user, thereby increasing user experience. The stop portion facilitates a predefined end upon which the straw can be inserted. The contacting portion of the inner surface simplifies mounting and provides for a substantially stable connection when mounted. The aroma channel facilitates that said aroma fluid can be provided to the user. A particular advantage may be that the combination of the aroma channel and the straw abutting the stop portion allows for a compact and small-sized adapter. This may be beneficial compared to prior art solutions, which either do not provide for such adapters at all or do not have these advances. The adapter may be mounted on any suitable straw. The straw may not require any particular preparation in order to be inserted into the adapter, which makes usage of the adapter user friendly.

[0015] The drinking fluid and the aroma fluid may be delivered to the mouth of the user, upon sucking. They maybe provided substantially separately. However, both fluids may mix in proximity to the mouth end of the adapter. Mixing may not mean that the fluids undergo any chemical interaction, although this may not be precluded. Mixing may primarily refer to physical mixing, e.g., that both fluids are combined and / or blended together and / or that they adopt a similar velocity. Mixing can occur in various physical states. Mixing may be governed by principles such as diffusion, convection, and turbulence. Mixing may not mean that both fluids are inseparable. Rather, it should be understood that both fluids may be separated such that the aroma fluid can be perceived retro-nasally whilst the drinking fluid can be guided to the stomach of the user or the like.

[0016] The hollow element maybe for instance a tubular element. Nonetheless, other shapes of the hollow element are not precluded and encompassed according to the present disclosure. The stop portion abuts a proximal end of the straw, which may mean that the stop portion provides for a substantially instantaneous stopping of the straw when they contact one another. A minor deformation of the straw may not be precluded as understood by the skilled person. The stop portion may be implemented as a peripheral edge as an example and as described elsewhere herein in greater detail. Other implementations are certainly possible and encompassed according to the present disclosure.

[0017] The aroma channel maybe useful for guiding and / or diffusing aromatic compounds to enhance sensory experience. It may form part of an aroma fluid path, thereby contributing to a scent to be provided to the user, enhancing the experience. The aroma channel may be implemented in various ways, including but not limited to a groove, a slit, a cut, a vent and / or a more complex path that helps to evenly distribute the aroma within a space or the like.

[0018] The aroma source may comprise an aroma container as described elsewhere herein. The aroma source may be mountable on the adapter and may be in fluid communication with the aroma channel.

[0019] The straw can be any kind of straw, including but not limited to a straw of a bottle and / or cup manufactured from Stanley, and / or generally a plastic straw, paper straw, metal straw, glass straw, bamboo straw, silicone straw, reusable water bottle straw, sippy cup straw, sports bottle straw, tumbler straw, boba straw, stainless steel tumbler straw, collapsible straw, reusable smoothie straw, cocktail straw, crazy straw, edible straw, straw with cleaning brushes, telescopic straw, and glass water bottle straw. A crazy straw may be a fun and / or whimsical straw with one or more twists and / or one or more bends for amusement. An edible straw may be an environmentally friendly straw made from edible materials like pasta or sugar.

[0020] The adapter is not particularly limited to straws but may be used for other applications as well, as understood by the skilled person. The adapter may be used with any kind of drinking devices known. It is appreciated that the drinking fluid may not need to contain a flavor. Nonetheless, it is also possible to combine the aroma fluid with a drinking fluid that contains flavor.

[0021] The adapter may be a hand-held adapter. This has the advantage of providing a portable, versatile, and cost-effective solution for providing aroma fluid to a drinking fluid with different interfaces, e.g., straws. This may offer convenience, flexibility, and ease of mounting.

[0022] It may be appreciated that the aroma fluid may not be released into the surrounding air in order to have an ortho-nasal effect on the user. Rather, it may be consumed substantially orally by the user when drinking. Thereby, the aroma fluid may be perceived retro-nasally. This may have the advantage to provide a sensory impression of a taste perception. It is noted that as the olfactory sensory impression makes up a significant part of the gustatory perception when consuming food and drink, the adapter as described in here has the particular advantage to convert any drinking device with a straw into a joyful experience in a flexible and unprecedented manner.

[0023] According to a 2ndembodiment, the aroma channel is arranged between the stop portion and the distal end of the hollow element.

[0024] This may have the advantage to maximize the exposure of the aroma to the user right before the mouth end. Further, it helps to manage the aroma fluid flow inside the hollow element and provides for a space-saving design. That is, because the available space could be optimally used for mounting the straw and the aroma source, thereby providing a substantially stable mounting in particular of the adapter on the straw whilst delivering an aroma fluid.

[0025] According to a 3rdembodiment, the contacting portion of the inner surface has a length (di) of at least 0.5 cm, preferably at least 1.0 cm, more preferably at least 2.0 cm, more preferably at least 2.5 cm, more preferably at least 3.0 cm, more preferably at least 3.5 cm, most preferably at least 4.0 cm along a longitudinal axis LA defined by the hollow element. Preferably, the contacting portion of the inner surface is located between the stop portion and the distal end. This has the advantage that the contacting portion of the inner surface has a sufficient length so as to improve mounting on the straw. Typically, in the solutions known from the prior art, the space is not optimally used, which can be overcome by way of the adapter as proposed in here.

[0026] According to a 4thembodiment, the adapter is configured such that when the hollow element is mounted on the drinking straw, the contacting portion is coupled to the part of the outer surface of the straw in a substantially form-fitting manner and preferably substantially sealing manner.

[0027] This has the advantage of improving the user experience, as the form-fitting and / or sealing manner reduces pressure losses upon sucking. Hence, this may result in a lower amount of negative pressure to be provided such that aroma fluid and / or drinking fluid can be provided by demanding less efforts by the user.

[0028] Mounting portion for aroma source

[0029] According to a 5thembodiment, the hollow element comprises a mounting portion on the outer surface of the hollow element for mounting the aroma source.

[0030] The mounting portion may have any suitable shape for allowing mounting of the aroma source. The mounting portion may provide structural stability and mechanical robustness to the aroma source. This may provide for a substantially firm attachment when mounted.

[0031] According to a 6thembodiment, the mounting portion is arranged between the stop portion and the distal end of the hollow element.

[0032] The advantage of this embodiment may be multifaceted including but not limited to a compact design with which space is optimally used. It may enable the adapter to utilize the available space more efficiently, which may be important as the adapter may be a hand-held and / or portable adapter where space is at a premium. This arrangement could also contribute to a more streamlined internal structure, which might improve the overall aesthetics and / or ergonomics of the adapter. Further, stability and support maybe improved, i.e., the mounting portion can provide a stable and / or predi cable area for the aroma source to be placed on the adapter. This may reduce the stress and potential deflection caused by impacts.

[0033] The mounting portion may alternatively be arranged in proximity to the distal end of the hollow element or even at the distal end of the hollow element. This bears the potential to have a larger outer surface of the hollow element allowing for improved interaction by the user.

[0034] According to a 7thembodiment, the mounting portion comprises a rim for supporting the aroma source. The rim is preferably a peripheral rim.

[0035] The rim further contributes to the advantages set out in the preceding embodiments. In case the aroma source, in particular the aroma container is substantially cylindrical, the peripheral rim has the advantage of supporting the aroma source on a greater area, leading to an improved fit.

[0036] According to an 8thembodiment, the mounting portion comprises a mounting element configured to engage with a counterpart element of the aroma source, when the aroma source is mounted, the counterpart element preferably shaped complementary to the mounting element, the mounting element being preferably configured to substantially prevent rotation of the aroma source when mounted.

[0037] Any kind of mounting element and / or counterpart element known may be used in order to engage with the aroma source. For instance, the mounting element may comprise a protrusion or the like, wherein the counterpart element may comprise a corresponding recess or aperture so as to provide for a form-fitting mounting.

[0038] The aroma source maybe mounted on the adapter in a movable manner (e.g., removable or releasable). This has the advantage to easily replace the aroma source in case a different taste is desired and / or in case the aroma source is substantially depleted. Nonetheless, it is not precluded that mounting of the aroma source on the adapter may be stationary (e.g., permanent or fixed). According to a 9thembodiment, the aroma channel is arranged substantially opposite to the side of the hollow element on which the mounting element is arranged.

[0039] Optionally, a downstream end of the aroma channel is arranged on the same side of the hollow element where an upstream end of the aroma channel is arranged; or a downstream end of the aroma channel is arranged substantially opposite to the side of the hollow element where an upstream end of the aroma channel is arranged.

[0040] Being arranged substantially opposite may mean, in case of a cylindrical design, that the aroma channel and the mounting element may be offset from one another by an angular section of about 170° to 190°, preferably about 1750to 185°, most preferably about 180°.

[0041] Fluid paths

[0042] According to a 10thembodiment, the adapter is configured such that, when the hollow element is mounted on the drinking straw: a drinking fluid path for providing the drinking fluid is formed between the distal end opposite the proximal end of the straw and the mouth end of the hollow element, and an aroma fluid path for providing the aroma fluid is formed between an upstream end of the aroma channel and the drinking fluid path. Alternatively, or additionally, the aroma fluid path is formed between an upstream end of the aroma channel and the mouth end of the hollow element.

[0043] This is beneficial, as two fluid paths maybe provided in which two separate fluids can be guided. The aroma fluid path may be formed between an upstream end of the aroma channel and the drinking fluid path.

[0044] The fluids may mix in proximity to the mouth end. The aroma fluid path may be confined at least partially by the inner surface of the hollow element and the outer surface of the straw, when mounted. This provides an advanced aroma fluid path, which is formed in a flexible, predefined manner, and / or reproducible manner. It may be additionally or alternatively possible that the aroma fluid path is separate from the drinking fluid path up to the mouth end of the hollow element. In the latter example, both fluids may exit the adapter substantially separated from one another.

[0045] Internal channel, recess

[0046] According to an 11thembodiment, the hollow element has an internal channel within the wall of the hollow element, forming part of the aroma fluid path.

[0047] The internal channel may be useful in order to provide for the aroma fluid path being separate from the drinking fluid path up to the mouth end of the hollow element, as described in the iothembodiment.

[0048] This has the advantage that the internal channel may allow for substantially concealed routing of the aroma fluid. This may not compromise the appearance of the wall’s outer surface, i.e., the outer surface of the hollow element. Thereby, the user may easily grab said outer surface without impairment and / or without disturbance. It is understood that this advantage applies also to the recess as described elsewhere herein. Additionally, routing fluids through an internal channel can offer protection against damage and / or it can enhance insulation.

[0049] The wall of the hollow element may be defined by the inner surface and the outer surface of the hollow element.

[0050] According to a 12thembodiment, the inner surface, preferably the contacting portion of the inner surface, comprises a recess forming part of the aroma fluid path.

[0051] The recess can create a more extended surface area along which the aroma fluid can travel, which can help in dispersing the scent more effectively. This design of the recess may optimize the exposure and mixing of the aroma fluid when leaving the recess. The recess may have the advantage to provide a designated route for the aroma fluid to follow. This may be precisely engineered to control the timing and intensity of aroma release, in particular upon sucking by a user. Without wishing to be bound by theory, it is believed that the recess might promote turbulence in the aroma fluid path, improving the delivery that contribute to the aroma.

[0052] In addition, the inner surface comprising the recess rather than another surface, such as the outer surface, has the advantage to provide for protection of the aroma fluid path. Further, the design may thereby be less disturbing for user to interact with, culminating in a more advanced experience and appreciation by the user.

[0053] The recess may refer to an indented area or indented space that is set back or carved into the inner surface, preferably the contacting portion of the inner surface. The recess may provide for various different functionalities as described elsewhere herein in greater detail. The space formed by the recess may be empty in one example, e.g., there maybe no parts, components, elements, or the like arranged within the space formed by the recess. As understood by the skilled person, being empty may encompass that aroma fluid may be arranged in said space formed by the recess. However, it is not precluded that the space formed by the recess may comprise one or more parts, components, elements, or the like (for instance the space formed by the recess may comprise at least one protrusion as described elsewhere herein). The recess is to be understood as a macroscopic recess, i.e., a recess that could be easily recognized without the need of elaborate investigations. It is noted that the recess may not be a through hole. For instance, the recess may not form a space that runs fully through the wall of the hollow element and / or through the adapter.

[0054] It is noted that the shape of the recess referred to herein may vary depending on the desired design of the aroma fluid path and / or its intended use case.

[0055] Shape and dimension of recess

[0056] According to a 13thembodiment, the recess has a depth of at least 0.5 mm, preferably at least 1.0 mm, more preferably at least 1.5 mm, most preferably at least 2.0 mm, and / or of at most 4 mm, preferably at most 3 mm, more preferably at most 2.5 mm, most preferably at most 2 mm. With the depth of the recess as specified in this embodiment, an optimal balance can be struck between two different and conflicting requirements. On the one side, a sufficient amount of aroma fluid should be able to be guided through the recess, providing enhanced aroma to be delivered. For this, a greater depth would be beneficial. On the other side, it should be ensured that the integrity and / or mechanical robustness of the adapter is not substantially impaired. For this, a smaller depth would be beneficial. In addition, manufacturing may be simplified by virtue of a smaller depth.

[0057] The depth of the recess as specified in this embodiment may in some examples also be applicable to the depth of any other recess described elsewhere herein. The depth may be measured substantially perpendicular to the inner surface, preferably to the contact portion of the inner surface.

[0058] According to a 14thembodiment, the recess has an elongated shape, preferably along the longitudinal axis LA of the hollow element.

[0059] This may improve and simplify the provision of the aroma fluid flow path. In addition, manufacturing expenses maybe reduced. The elongated shape may reduce friction of the aroma fluid on the recess’ surface(s), thereby reducing efforts made by the user (e.g., sucking efforts).

[0060] The elongated shape means that there maybe a dimension along one axis of the recess, which may be larger than one and preferably than both dimensions along the remaining axes, the remaining axes being substantially perpendicular to said one axis. It is understood that when dimensions are described herein, manufacturing tolerances usually have to be taken into consideration. Thus, the dimensions described herein may vary slightly. The term elongated as used to describe a shape may additionally or alternatively mean that said shape is slender or the like.

[0061] According to a 15thembodiment, the recess has a length along the longitudinal axis LA of the hollow element of at least 2 mm, preferably at least 4 mm, more preferably at least 10 mm, most preferably at least 20 mm, and / or of at most 60 mm, preferably at most 40 mm, more preferably at most 30 mm, even more preferably at most 20 mm, most preferably at most 15 mm. A smaller length of the recess may contribute to a more minimalistic construction of the adapter. This may improve mechanical robustness of the adapter, which is appreciated by the user. Therefore, an upper limit to the length should be provided. Nevertheless, the length of the recess should have at least a minimum value such that the aroma fluid can be guided over at least a certain distance, whilst the contacting portion may be provided to a sufficient length such that mounting is improved. Thus, without wishing to be bound by theory, it is believed that an optimal balance between these conflicting requirements can be struck according to the values as specified in here.

[0062] Plurality of recesses, protrusion

[0063] According to a 16thembodiment, the recess is a first recess, and the hollow element comprises a plurality of recesses on the inner surface, preferably on the contacting portion of the inner surface, the recesses forming part of the aroma fluid path.

[0064] The plurality of recesses can be advantageous for the aroma fluid path, as it provides more space for the aroma to interact with. This may lead to a more effective release and perception of the aroma, once received retro-nasally, which may be beneficial as sensory experience is important.

[0065] The presence of multiple recesses can further contribute to the provision of turbulence and / or a more intricate flow path as the aroma fluid moves through the aroma fluid path of the hollow element. This may lead to better extraction of aromatic compounds from the fluid, thereby intensifying the aroma experience. This turbulence may also ensure that the aroma is well-mixed with ambient air, leading to a more uniform distribution of scent.

[0066] The features and / or advantages mentioned in the context of the (first) recess may also apply to any one of the recesses of the plurality of recesses.

[0067] According to a 17thembodiment, the aroma channel is in fluid communication with a second recess of the inner surface. According to an 18thembodiment, the second recess is in fluid communication with a third recess of the inner surface, and preferably with a fourth recess of the inner surface.

[0068] The advantages mentioned in the context of the 16thembodiment also apply to the embodiments 17 and 18.

[0069] According to a 19thembodiment, the aroma fluid path runs from the upstream end of the aroma channel via a downstream end of the aroma channel to the second recess, then to the third recess, then preferably to the fourth recess, then to the first recess.

[0070] It is noted that the terms first, second, third, fourth or the like, e.g., when used in the expression “first recess” does not limit the term “recess” itself. In particular, this does not mean that a “first recess” may necessarily be different than a “recess” and / or that a “first recess” is more limiting than a “recess”. The term “first” is merely used to name the recess and / or any other part described herein appropriately. In particular, the same features and advantages described with reference to the “first recess” may be equally applicable to any other recess described in here.

[0071] According to a 20thembodiment, at least one recess comprises a protrusion overlapping at least partially with the aroma channel along a projection along the longitudinal axis LA of the hollow element.

[0072] The protrusion may extend towards the straw when the adapter is mounted on the straw. The protrusion may abut the straw, when mounted. This may provide improved stability to the straw. Further, the protrusion prevent that a portion of the drinking fluid may run into the aroma source. For instance, it may not be completely ruled out that a portion of the drinking fluid may accidentally run into the aroma fluid path, e.g., by entering the recess at the stop portion of the hollow element. In such a situation, the protrusion may prevent that the portion of the drinking fluid runs into the aroma source, e.g., via the aroma channel.

[0073] The recess may comprise more than one protrusion. The protrusion may be arranged in a plane parallel to the longitudinal axis and said plane may pass through a downstream end of the aroma channel. This may further help to prevent a portion of drinking fluid from running into the aroma source.

[0074] The expression “protrusion” maybe something that extends from a surface or object. For instance, it may extend from the valley of the recess towards the hollow space formed by the hollow element. The term protrusion may be used to describe any part of an object or structure that extends beyond the surrounding surface or boundary. In one example, the protrusion maybe a three-dimensional extension or projection that extends from a surface or object. The protrusion maybe provided in various sizes. The size, shape, or the like of the protrusion may vary depending on the indented purpose.

[0075] The protrusion may exemplarily have the shape of one of a rib, a ridge, a lamella, or a fin, or the like.

[0076] According to a 21stembodiment, at least one recess defines a cavity dimensioned to allow for pressure compensation with respect to the drinking fluid, wherein the protrusion is preferably arranged centrally within the cavity, and configured to provide a substantially sealing contact with the straw when mounted.

[0077] The sealing contact of the protrusion with the straw when mounted has the advantage of increasing stability of the adapter when mounted.

[0078] The cavity may be large enough so as to accommodate aroma fluid in a manner that the velocity of the aroma fluid may be decreased. In turn, a static pressure may increase leading to the possibility of providing a pressure compensation, which enhances user experience. The cavity may therefore have the advantage to provide for pressure compensation with respect to a drinking container comprising drinking fluid into which the distal end of the straw may reach as follows: if a user sucks for a longer time and / or with a high intensity, a pressure in the drinking container may be reduced compared to the pressure within the cavity. Fluid may thereby be allowed to flow into the drinking container so as to compensate for the reduced pressure, i.e., to increase the pressure again. Recess, circumferential edge, and inner surface

[0079] According to a 22ndembodiment, the stop portion extends substantially perpendicularly from the inner surface to the inside of the hollow element, preferably by at least i.o mm, preferably at least 1.5 mm, more preferably at least 2.0 mm, most preferably at least 3.0 mm, and / or preferably by at most 5 mm, preferably at most 4.5 mm, more preferably at most 4.0 mm, most preferably at most 3 mm.

[0080] With the extension of the stop portion as specified in this embodiment, an optimal balance can be struck between two different and conflicting requirements. On the one hand, a surface large enough to ensure proper abutting of the straw to the stop portion should be provided so as to increase the stability of the adapter, in particular when mounted. For this, a greater extension would be beneficial. On the other hand, it should be ensured that the drinking fluid path is not substantially impaired and / or blocked. For this, a smaller extension would be beneficial.

[0081] The stop portion may be a substantially circumferential stop portion. In this case, the extension of the stop portion may be substantially radially, towards the longitudinal axis LA of the hollow element.

[0082] The stop portion may in some examples be referred to as a shoulder, a collar or the like.

[0083] According to a 23rdembodiment, the recess is provided at least partially on the stop portion.

[0084] This may be understood in such a manner that the recess’s dimensions extend at least partially along the stop portion. As described elsewhere herein, the recess may extend further than the stop portion, e.g., in a longitudinal and / or radial direction.

[0085] This embodiment may have the advantage that the aroma fluid can be provided even if the straw abuts the stop portion. The inventors thereby paved the way to provide for an aroma fluid path, which may substantially not be blocked and / or impaired if the adapter is mounted a straw. Without wishing to be bound by theory, it is believed that entering of the aroma fluid at the stop portion of the hollow element or even downstream the stop portion has the advantage that no adverse mixing with the drinking fluid may occur. The latter could be the case if the aroma fluid is mixed with the drinking fluid at an upstream part of the drinking fluid path.

[0086] According to a 24thembodiment, the stop portion is provided in proximity to the mouth end, wherein a distance d2between the stop portion and the mouth end is preferably at most 6 cm, more preferably at most 5 cm, even preferably at most 4 cm, further more preferably at most 3 cm, further more preferably at most 2 cm, even more preferably at most 1.5 cm, most preferably at most 1 cm.

[0087] It is appreciated that the distance d2can be rather small, leading to a compact design. This has the additional advantage that the extension of the straw by virtue of the adapter mounted on the straw is not too large. This may alleviate the effort required by a user to suck and to consume drinking fluid.

[0088] However, in some examples, it may be beneficial when the distance d2is not too small, e.g., if it is at least 5 cm, preferably at least 6 cm. This may have the advantage to increase the extension of the straw by virtue of the adapter mounted on the straw.

[0089] According to a 25thembodiment, the stop portion comprises a peripheral edge configured to abut the proximal end of the straw when mounted, to provide at least partially a sealing fit.

[0090] This further contributes to the advantages set out in the preceding embodiments in relation to the stop portion. The peripheral edge has the advantage of providing a substantially flat surface for abutting, which may allow a precise insertion by way of a predefined stopping. The peripheral edge may substantially prevent inserting the straw further upstream, such that incorrect usage can be prevented.

[0091] The abutment with a sealing fit can add to the structural integrity of the connection between the straw and the stop portion. This can be important in scenarios where the straw is subjected to various impacts (e.g., bending, twisting, or pulling forces), which typically prevail during usage of the adapter in conjunction with the straw. This may therefore help to maintain the straw’s position and prevent detachment and / or damage.

[0092] According to a 26thembodiment, the recess intersects the peripheral edge and defines a substantially L-shaped path for the aroma fluid.

[0093] The L-shape may be understood in such a manner that the aroma fluid can substantially flow around the proximal end of the straw when mounted. For instance, the recess maybe formed such that the aroma fluid follows a substantially straight line and then enters a hollow space formed by the hollow element substantially radially. This may visually aid to understand the L-shaped path for the aroma fluid.

[0094] The L-shaped path can direct the flow of aroma fluid towards a specific area, e.g., said hollow space, which could enhance the user experience by focusing the aroma where it is desired the most and / or by managing the scent's dispersal for practical purposes.

[0095] The angular path formed by the L-shaped path may create additional turbulence or cause the aroma fluid to mix more thoroughly as it changes direction. This may improve the distribution of aromatic compounds, leading to a more intense and pleasant olfactory experience. The recess may not be limited to defining an L-shaped path, as understood by the skilled person, however, the L-shaped path may be advantageous.

[0096] According to a 27thembodiment, the contacting portion and preferably the inner surface is / are shaped substantially cylindrically.

[0097] A cylindrical shape can provide a consistent and effective seal around its entire circumference. This attribute may be beneficial as the integrity of the seal may affect the functionality of the adapter. Moreover, cylindrical shapes are typically easier to manufacture with high precision and may often be more straightforward to integrate into assembly lines. This maybe the case because they are symmetrical and may not require complex tooling or machining. This can result in a more cost-effective production process. According to a 28thembodiment, the hollow element has an average wall thickness from the inner surface to the outer surface in proximity of the stop portion and upstream of the stop portion of at least 3 mm, preferably at least 4 mm, most preferably at least 5 mm, and / or of at most 10 mm, preferably at most 8 mm, most preferably at most 5 mm, wherein the hollow element preferably has an average wall thickness from the inner surface to the outer surface in proximity of the stop portion and downstream of the stop portion of at least 5 mm, preferably at least 6 mm, most preferably at least 8 mm, and / or of at most 12 mm, preferably at most 10 mm, most preferably at most 8 mm.

[0098] Thereby, the wall thickness may be smaller upstream the stop portion compared to downstream the stop portion. This allows improved abutting of the straw.

[0099] Structure to counteract relative movement

[0100] According to a 29thembodiment, the inner surface, preferably the contacting portion of the inner surface, comprises a structure dimensioned to counteract relative movement between the hollow element and the drinking straw, when mounted.

[0101] The structure’s dimension can provide a snug fit that grips the drinking straw, minimizing the risk of it becoming dislodged during use. This can be important when the adapter is handled frequently or moved around, as it may typically be the case during ordinary use of the adapter. Further, by counteracting relative movement, such a structure can help maintain a good seal between the hollow element and the straw, reducing the likelihood of leaks of the aroma fluid at their interface. This may prevent spillage and waste of the aroma fluid. Further, it may maintain the hygiene in some instances, by eliminating areas where residue could accumulate due to micromovements that create gaps.

[0102] Limiting relative movement may also reduce stress at the junction between the two parts. Over time, wear and tear from repeated motion may degrade the materials and the fit, leading to potential failure. The structure may minimize this relative movement and may therefore extend the useful life of the components and may maintain a consistent level of performance.

[0103] According to a 30thembodiment, the structure is arranged in proximity of the distal end of the hollow element.

[0104] This further contributes to the advantages set out in embodiment 29.

[0105] According to a 31stembodiment, the structure comprises at least one longitudinal ridge, preferably arranged substantially parallel to a longitudinal axis LA of the hollow element, wherein the structure preferably comprises a plurality of longitudinal ridges, preferably arranged substantially equidistantly along the periphery of the inner surface.

[0106] This further contributes to the advantages set out in the preceding embodiments 29 and 30.

[0107] Second aspect of the adapter

[0108] A 32ndembodiment of the invention is directed to an adapter for a drinking straw, comprising: a hollow element having a mouth end for being received in the mouth of a user, a distal end opposite to the mouth end, an inner surface, and a stop portion; wherein the adapter is configured such that, when the hollow element is mounted on the drinking straw by inserting at least a part of the straw into the hollow element: the stop portion abuts a proximal end of the straw; and a contacting portion of the inner surface contacts a part of the outer surface of the straw; wherein the hollow element comprises one or more recesses on the inner surface, preferably on the contacting portion of the inner surface, wherein the recesses are configured to facilitate inserting the at least a part of the straw.

[0109] In this manner, the adapter provides an easier insertion of the straw, which is appreciated by the user. It may be the case that friction between the inner surface, in particular the contacting portion of the inner surface and the straw may be reduced by way of the one or more recesses. This may improve the user experience during initial setup or any situation where the consumer has to mount and / or dismount the adapter on the straw.

[0110] In order to facilitate inserting the straw, it is conceivable that the recesses may be dimensioned so as to reduce a force required to insert the straw as described further below.

[0111] According to a 33rdembodiment, the one or more recesses are configured to reduce a force of insertion by a factor of at least 1.1, preferably at least 1.2, more preferably at least 1.3, more preferably at least 1.4, most preferably at least 1.5 compared to a force of insertion without the one or more recesses.

[0112] This allows for a relatively easy and efficient assembly. Further, potential wear and impact on component longevity can be improved since a lower insertion force can minimize wear and damage to the components being assembled. This may be important in situations where components are made of materials susceptible to damage from higher insertion forces. Exemplary materials may be plastics, paper, or the like that can deform or scratch. Such materials may often be employed in straws, which makes reduction of the force of insertion particularly advantageous.

[0113] The skilled person is readily aware to determine the force necessary for inserting the straw by conventional measurement means. Further, also a comparison to a scenario without the recesses can be easily performed by the skilled person.

[0114] According to a 34thembodiment, the one or more recesses cover at least 1%, preferably at least 2%, more preferably at least 3%, more preferably at least 5%, more preferably at least 8%, more preferably at least 10%, more preferably at least 12%, more preferably at least 15%, more preferably at least 20% of the inner surface, preferably of the contacting portion of the inner surface. Optionally, the one or more recesses cover at most 60%, preferably at most 50%, more preferably at most 40%, more preferably at most 35%, more preferably at most 30%, more preferably at most 25%, more preferably at most 20% of the inner surface, preferably of the contacting portion of the inner surface. This further contributes to the advantages set out in the preceding embodiment.

[0115] With the values of covering as specified in this embodiment, an optimal balance can be struck between two different and conflicting requirements. On the one side, a force of insertion should be reduced, for which a larger covering is desired, as this bears the potential to mitigate surface friction. On the other side, it should be ensured that the integrity and / or mechanical robustness of the adapter is not substantially impaired. For this, a smaller covering would be beneficial. In addition, when the recess(es) is / are used as part of the aroma fluid path described elsewhere herein, it may be desired that the recess are smaller, e.g., that a smaller covering is provided, as this may allow a more controlled and / or predictable flow of the aroma fluid.

[0116] As the straw may not make contact with the overall inner surface of the adapter (e.g., due to deformation or the like), the covering of the one or more recesses is preferably defined based on the contacting portion. The skilled person is readily able to determine the covering of the contacting portion by way of the recesses.

[0117] According to a 35thembodiment, the adapter comprises an aroma channel for being connected with an aroma source, wherein the one or more recesses preferably form part of an aroma fluid path.

[0118] According to a 36thembodiment, the adapter of embodiments 32 to 35 is an adapter according to any one of embodiment 1 to 31.

[0119] Hence, the same features and advantages set out in the embodiments 1 to 31 can be applied and are applicable to the embodiments 32 to 35 and vice versa.

[0120] According to a 37thembodiment, sucking of a user on the mouth end means providing a pressure lower than ambient pressure on the mouth end.

[0121] Thereby, merely a negative pressure at the mouth end of the adapter may need to be provided in order to ensure that the aroma fluid and / or the drinking fluid to be delivered. Plural of ways in order to ascertain whether this pressure is provided or not are known to the skilled person, e.g., manometers, pressure transducers, vacuum gauges, flow meters, simulation and modeling (e.g., by means of CFD simulations). In one example, it may even be conceivable that the aroma fluid may be delivered to the user if the pressure at the mouth end was the same or even higher than ambient pressure. This may prevail if the aroma source was pressurized, as understood by the skilled person.

[0122] Adapter set

[0123] A 38thembodiment of the invention is directed to an adapter set for a drinking straw, comprising: an adapter according to any one of the preceding embodiments; and an aroma source, in particular an aroma container, preferably mounted on the mounting portion of the hollow element.

[0124] The adapter set for a drinking straw may include all aspects and / or embodiments and / or examples and / or advantages described elsewhere herein, as it comprises the adapter.

[0125] According to a 39thembodiment, the aroma source is arranged at least partially between the stop portion and the distal end of the hollow element.

[0126] According to a 40thembodiment, the aroma source comprises a fluid inlet for ambient fluid, and a fluid outlet for a mixture of ambient fluid with an aroma substance, wherein the fluid outlet is preferably in fluid communication with the aroma channel.

[0127] According to a 41stembodiment, the fluid inlet is arranged substantially opposite to the fluid outlet.

[0128] For instance, in case of a cylindrically shaped aroma source, the inlet and outlet may be offset from one another by an angular section of about 170° to 190°, preferably about 1750to 185°, most preferably about 180°. According to a 42ndembodiment, the aroma source comprises an aroma chamber comprising a carrier substance for an aroma substance.

[0129] System

[0130] A 43rdembodiment of the invention is directed to a system comprising: an adapter set according to any one of embodiments 36 to 40; and a drinking straw; wherein the hollow element may be mounted on the drinking straw by inserting the straw into the hollow element.

[0131] According to a 44thembodiment, the adapter is an adapter according to embodiment 25, and the peripheral edge abuts the straw, to provide at least partially a sealing fit.

[0132] According to a 45thembodiment, the adapter is a mouthpiece. The mouthpiece may have the advantage to provide for comfort and ease of use. Moreover, the mouthpiece may provide for an improved compatibility.

[0133] Better usability: Mouthpieces are often made of materials that optimize grip, comfort, and safety for prolonged use.

[0134] The term “substantially” as used in the present disclosure means that manufacturing tolerances are included. Thus, slight variations of dimensions, shapes, or the like deviating from their intended dimensions, shapes, or the like are encompassed. Thereby, the present disclosure is not limited to the precise dimensions, shapes, or the like mentioned in here.

[0135] Brief description of the figures

[0136] In the following, preferred embodiments are described, by way of example only. Reference is made to the following accompanying figures:

[0137] Fig. 1 illustrates an adapter for a drinking straw and a drinking straw according to a first embodiment of the invention;

[0138] Fig. 2 illustrates the embodiment of Fig. 1 with an aroma source mounted; Fig. 3 illustrates Fig. 2 in a cross-sectional view without the straw;

[0139] Fig. 4 illustrates the embodiment of Fig. 1 in two different cross-sectional views (A: without straw; B: with straw);

[0140] Fig. 5 illustrates an adapter for a drinking straw according to a second embodiment of the invention in a cross-sectional view;

[0141] Fig. 6 illustrates an adapter for a drinking straw according to a third embodiment in two different cross-sectional views (A: without straw; B: with straw and aroma source);

[0142] Fig. 7 illustrates an adapter for a drinking straw according to a fourth embodiment with an aroma source mounted; and

[0143] Fig. 8 illustrates an adapter for a drinking straw and a drinking straw according to a fifth embodiment with an aroma source mounted.

[0144] Detailed description of preferred embodiments

[0145] Definitions

[0146] The term “aroma substance” or equivalents as used in the present disclosure may include materials that maybe carried with the help of another fluid, such as air. For instance, the aroma substance may be carried as particles. Additionally, or alternatively, the aroma substance may volatilize. Thereby, a volatilized component in the form of an aerosol may be provided. The volatilized component may mix with another fluid, such as air.

[0147] The aroma substance may include any material, in particular materials that contribute to scents like chocolate orange, bubble gum, blue raspberry, kola, watermelon, orangeade, apple, pineapple. Further, the aroma substance may include materials that contribute to scents of fruit extracts, vanilla, coffee aroma compounds, tea essence, herbal infusions, spices, hops, malt extracts, wine aroma compounds, and carbonation aroma. The aroma substance may be provided in any desired form including but not limited to a solid, a liquid, a gel or a wax or any other suitable form. Said aroma substance may also be a combination or a blend of materials.

[0148] The terms “one end”, “the other end”, “outer side”, “upper”, “above”, “inner side”, “under”, “below”, “horizontal”, “coaxial”, “central”, “end” “part”, “length”, “outer end” etc., which indicate the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings.

[0149] The terms “upper”, “above”, “below”, “under” and the like as used in the present invention to indicate a relative position in space are used for the purpose of facilitating explanation to describe an adapter, device, part, component and / or feature shown in the drawings relative to the relationship of another adapter, device, part, component and / or feature.

[0150] The term of the relative position in space maybe intended to include different orientations of the adapter, device, part, component and / or feature other than those shown in the figures. For example, if the adapter, device, part, component and / or feature in the figure is turned over, the adapter, device, part, component and / or feature described as being “below” or “under” other adapters, devices, parts, components and / or features will be “above” the other adapter, device, part, component and / or feature. Therefore, the exemplaiy term “below” can encompass both the above and below orientations.

[0151] Embodiments shown in the figures

[0152] In the following, the invention is described with reference to the accompanying figures in more detail. However, the present invention can also be used in other embodiments not explicitly disclosed hereafter. As detailed below, the embodiments are compatible with each other, and individual features of one embodiment may also be applied to another embodiment.

[0153] Throughout the figures and description, the same reference numerals refer to the same elements, unless stated otherwise. The figures may not be drawn to scale, and the relative size, proportions, and depiction of elements in the figures may be exaggerated for the purpose of clarity, illustration, and convenience. The figures do not limit the scope of the claims but merely support the understanding of the invention.

[0154] Figs. 1 to 4 show an adapter 1 for a drinking straw 8o according to a first embodiment. Fig. 1 additionally shows the drinking straw 8o inserted into the adapter 1. Fig. 2 additionally shows the aroma source 50 mounted on the adapter 1. Fig. 3 shows the configuration when the straw 80 is removed from the adapter 1. Fig. 4 shows two different cross-sectional views.

[0155] The adapter 1 comprises a hollow element 10 having a mouth end 11 for being received in the mouth of a user, a distal end 12 opposite to the mouth end 11, an inner surface 13, and a stop portion 20. The adapter 1 also comprises an aroma channel 16 for being connected with an aroma source 50. The adapter 1 is configured such that, when the hollow element 10 is mounted on the drinking straw 80 by inserting at least a part of the straw 80 into the hollow element 10: the stop portion 20 abuts a proximal end 81 of the straw 80; a contacting portion of the inner surface 13 contacts a part of the outer surface of the straw 80; and when the user additionally sucks on the mouth end 11: a drinking fluid, preferably a liquid such as water, can be provided to the user via the straw 80 to mouth of the user (the user is not shown, but he or she would receive the adapter in the upper part of Fig. 1); and an aroma fluid, preferably a gas such as air comprising an aroma substance, can be provided to the mouth of the user via the aroma channel 16.

[0156] The adapter 1 enables the addition of the aroma fluid to the drinking fluid without premixing the aroma fluid with the drinking fluid in a drinking container. This alleviates the need of additives dissolved in the drinking container. This can reduce calorie intake from sugary additives. Further, by delivering the aroma fluid in the fluid flow received in the mouth of the user, the user's olfactory senses are engaged retronasally, enhancing the perception of taste without the aroma fluid actually having to be ingested with the drinking fluid. The adapter 1 can be used with various straws 80 and / or drinking bottles, drinking containers, drinking vessels or the like, due to its adaptable design features. Among these are inter alia the provision of the aroma fluid path 2 and / or the sealing between the contacting portion and the straw 80. The latter maybe particularly advantageous, since the adapter i in combination with the straw 8o may provide for a substantially sealed aroma fluid path 2. The adapter i may fit straws 8o with different diameters. The adapter i also provides for a space-saving design, improved hygiene, compatibility with standard drinking straws. The user may easily activate or deactivate the aroma fluid addition. For deactivation, the user may simply use the adapter i without the aroma source 50. This may allow users to control over when they want to experience the flavored aroma and when they prefer their beverage unflavored. Thereby, the adapter 1 may provide for dual functionality.

[0157] Moreover, the adapter 1 may in some or all examples of the present disclosure be a mouthpiece.

[0158] As shown in Figs. 3 and 4, the aroma channel 16 is arranged between the stop portion 20 and the distal end 12 of the hollow element 10.

[0159] As shown in Fig. 4, the contacting portion of the inner surface 13 has a length that is indicated as di, the values of which are specified elsewhere herein. Preferably, the contacting portion of the inner surface 13 is located between the stop portion 20 and the distal end 12 of the hollow element 10.

[0160] The adapter 1 is configured such that when the hollow element 10 is mounted on the drinking straw 80, the contacting portion is coupled to the part of the outer surface of the straw 80 (i.e., the part that is inserted) in a substantially form-fitting manner and preferably substantially sealing manner.

[0161] The hollow element 10 comprises a mounting portion 40 on its outer surface 14 for mounting the aroma source 50. The mounting portion 40 maybe arranged between the stop portion 20 and the distal end 12 of the hollow element 10. By placing the mounting portion 40 in this location, it allows the distal end 12 of the hollow element 10 to be positioned relative to other components without impairments. Hence, insertion of the straw 80 may be improved. As described elsewhere herein, the mounting portion 40 may alternatively be arranged in proximity to the distal end 12 of the hollow element 10 or even at the distal end 12 of the hollow element 10. The mounting portion 40 comprises a rim 41 for supporting the aroma source 50 when mounted on the adapter 1. As best seen in Fig. 1, the rim 41 may be a peripheral rim 41.

[0162] The mounting portion 40 comprises a mounting element 45 configured to engage with a counterpart element 55 of the aroma source 50, when the aroma source 50 is mounted on the adapter 1. The counterpart element 55 can be shaped complementary to the mounting element 45. The mounting element 45 allows to substantially prevent rotation of the aroma source 50 when mounted on the adapter 1. This improves fixing the aroma source 50 and the adapter 1 in a releasable manner.

[0163] The mounting element 45 may comprise a mounting nose as best seen in Fig. 1, wherein the counterpart element 55 may comprise a notch, a groove or the like, as best seen in Fig. 2. However, the mounting element 45 and / or the counterpart element 55 may not be limited to the aforementioned examples. They may include one or more or all of the following non-exhaustive list: fasteners (such as screws, bolts, nuts, rivets, clamps, staples), adhesives and glues (e.g., a double-sided tape comprising adhesive), mechanical connections (latches and catches, hooks and loops, zip ties), magnetic attachments, snap-fit connections (interlocking components that snap together). As understood by the skilled person, the way in which the mounting element 45 and the counterpart element 55 engage may depend on the materials involved and / or the specific intended purpose of the aroma source 50.

[0164] As best seen in view B of Fig. 4, the aroma channel 16 is arranged substantially opposite to the side of the hollow element 10 on which the mounting element 45 is arranged.

[0165] The aroma channel 16 has an upstream end 16’ and a downstream end 16”, as best seen in view B of Fig. 4. In this embodiment, the downstream end 16” of the aroma channel 16 is arranged on the same side of the hollow element 10 where the upstream end 16’ of the aroma channel 16 is arranged.

[0166] The adapter 1 is configured such that, when the hollow element 10 is mounted on the drinking straw 80: a drinking fluid path 3 (as best seen in Fig. 4) for providing the drinking fluid is formed between the distal end 82 (which may reach into a drinking container comprising drinking fluid) opposite the proximal end 81 of the straw 8o and the mouth end 11 of the hollow element 10, and an aroma fluid path 2 for providing the aroma fluid is formed between an upstream end 16’ of the aroma channel 16 and the drinking fluid path 3. As best seen in view B of Fig. 4, both fluids 2, 3 come into contact and / or mix in proximity of the mouth end 11 of the straw 80. In particular, the aroma fluid may flow through the recess 15, thereby flowing around the proximal end 81 of the straw 80 in order to join the drinking fluid path 3.

[0167] It is noted that the aroma fluid path 2 may comprise more or less paths than the ones mentioned. As described elsewhere herein in greater detail, ambient air may enter the aroma source 50. Thereby, said entering of ambient air may also be considered forming part of the aroma fluid path 2.

[0168] Alternatively, or additionally, the aroma fluid path 2 is formed between an upstream end 16’ of the aroma channel 16 and the mouth end 11 of the hollow element 10 (not shown in the figures), i.e., without coming into contact and / or mix with the drinking fluid path upstream the mouth end 11 of the hollow element 10. For this purpose, the hollow element 10 may have an internal channel (not shown in the figures) within the wall of the hollow element 10, the internal channel forming part of the aroma fluid path 2. The wall of the hollow element 10 maybe formed by the inner surface 13 and the outer surface 14 of the hollow element 10.

[0169] The inner surface 13, preferably the contacting portion of the inner surface 13, comprises a recess 15 forming part of the aroma fluid path 2. The recess 15 as part of the aroma fluid path 2 generally serves to manage the flow of the aroma fluid within the adapter 1. As described elsewhere herein, the contacting portion of the inner surface 13 may interact directly with the straw 80.

[0170] The recess 15 may have the advantage of being shaped and / or positioned in such a way so as to prevent and / or minimize the aroma fluid from stagnating in the adapter 1. Thereby, it may contribute to a cleaner system with less maintenance and / or a more consistent adapter 1. It may potentially reduce the chances of clogging or buildup of residue. The recess 15 may be shaped to provide for a lower friction to the aroma fluid resulting in less effort for the user to suck on the mouth end n of the hollow element io.

[0171] The recess 15 may promote turbulence in the aroma fluid path 2, improving the extraction and release of aroma fluid. Without wishing to be bound by theory, it may be the case that this may be akin to how aeration in wine can improve its bouquet.

[0172] The depth of the recess 15 may be best seen in view B of Fig. 4. That is, the depth may be measured substantially perpendicular to the inner surface 13, preferably to the contact portion of the inner surface 13. As best seen in Fig. 3, the recess 15 has an elongated shape, preferably along the longitudinal axis LA of the hollow element 10. The length of the recess 15 mentioned elsewhere herein may be measured along the longitudinal axis LA of the hollow element 10 as seen inter alia in Fig. 3.

[0173] As best seen in Fig. 3, the recess 15 is a first recess 15, and the hollow element 10 comprises a plurality of recesses 15, 15’, 15”, 15”’ on the inner surface 13, preferably on the contacting portion of the inner surface 13. The recesses 15, 15’, 15”, 15”’ form part of the aroma fluid path 2. With recesses 15, 15’, 15”, 15”’ distributed over the contacting portion of the inner surface 13, the aroma fluid path 2 may be broken up into smaller streams. This may facilitate a more controlled release of the aroma, preventing overwhelming bursts and instead providing a steady, consistent flow that can be more pleasant and less overpowering to the senses.

[0174] The aroma channel 16 may be in fluid communication with a second recess 15’ of the inner surface 13 as best seen in Fig. 4. In particular, the downstream end 16” of the aroma channel 16 may open into the second recess 15’. The second recess 15’ is in fluid communication with a third recess 15”, and preferably with a fourth recess 15”’ of the inner surface 13. The aroma fluid path 2 runs from the upstream end 16’ of the aroma channel 16 via a downstream end 16” of the aroma channel 16 to the second recess 15’, then to the third recess 15”, then preferably to the fourth recess 15”’, then to the first recess 15.

[0175] As best seen in Figs. 3 and 4, two recesses 15’, 15”’ (in this embodiment the second and the third recess 15’, 15”’) comprise a protrusion 18’, 18”, overlapping at least partially with the aroma channel 16 in a plane along the longitudinal axis LA of the hollow element io. The protrusion 18’, 18” may be arranged in a plane parallel to the longitudinal axis LA and said plane may pass through the downstream end 16” of the aroma channel 16. As best seen in Figs. 3 and 4, two recesses 15’, 15”’ define a cavity dimensioned to allow for pressure compensation with respect to the drinking fluid. Each protrusion 18’, 18” is preferably arranged centrally within the cavity, and configured to provide a substantially sealing contact with the straw 80 when mounted.

[0176] It is noted that the adapter 1 may comprise more or less recesses 15, 15’, 15”, 15”’ as duly described elsewhere herein. Hence, the exact number of the recess(es) 15, 15’, 15”, 15”’ is not to be limited to this particular example, which merely serves to support an understanding of the present invention.

[0177] As inter alia seen in Fig. 3, the stop portion 20 extends substantially perpendicularly from the inner surface 13 to the inside of the hollow element 10. The amount of extension is described elsewhere herein. This may provide for an improved abutting of the straw 80. Moreover, the recess 15 is provided at least partially on the stop portion 20. As seen in Fig. 3, a portion of the recess 15 runs longitudinally along the stop portion 20. Moreover, the stop portion 20 is provided in proximity to the mouth end 11, as derivable by the distance d2in Fig. 4, the values of distance d2are described elsewhere herein. The stop portion 20 comprises a peripheral edge 21 configured to abut the proximal end 81 of the straw 80 when mounted, to provide at least partially a sealing fit.

[0178] The recess 15 intersects the peripheral edge 21 and defines a substantially L-shaped path for the aroma fluid 2 (as best seen in view B of Fig. 4). The L-shaped path can segment the flow of the aroma fluid from other fluids within the adapter 1, such as the drinking fluid. This separation can help maintain the integrity of the aroma, prevent interference with the drinking fluid by localizing the area through which the aroma fluid flows.

[0179] As can be seen in the figures, the contacting portion of the inner surface 13 and preferably the inner surface 13 is / are shaped substantially cylindrically. Moreover, the hollow element io has an average wall thickness from the inner surface 13 to the outer surface 14 in proximity of the stop portion 20 and upstream of the stop portion 20, the average wall thickness being specified elsewhere herein. Further, it has an average wall thickness in proximity of the stop portion 20 and downstream of the stop portion 20 as also specified elsewhere herein. Fig. 4 shows that the latter thickness is greater than the former thickness. This may allow for the extension of the stop portion 20 to the inside of the hollow element 10.

[0180] The aroma source 50 comprises a fluid inlet 53 for ambient fluid, and a fluid outlet 54 for a mixture of ambient fluid with an aroma substance, wherein the fluid outlet 54 is preferably in fluid communication with the aroma channel 16. The fluid inlet 53 is arranged substantially opposite to the fluid outlet 54. As best seen in Fig. 3, the aroma source 50 comprises an aroma chamber 51 comprising a carrier substance for an aroma substance.

[0181] The aroma source 50 may comprise an aroma container. The aroma source 50 maybe implemented in various ways. For instance, it may comprise porous materials or membranes. These maybe arranged within the aroma container to gradually release the aroma compounds. These materials may be engineered to regulate the rate of diffusion. This may ensure a consistent and / or long-lasting aromatic experience without overwhelming the user. Additionally, or alternatively, the aroma source 50 may incorporate microencapsulation and / or encapsulation within semipermeable membranes. This may offer precise control over the release kinetics of aroma compounds. This may allow for tailored scent profiles and prolonged aroma persistence.

[0182] The carrier substance may not completely fill the aroma chamber 51. For instance, the carrier substance may not extend completely around the cylindrical aroma chamber 51, although this is not precluded. Preferably, the carrier substance may form an angular section, for instance of about 180°. An air-filled headspace may be formed within the aroma chamber 51, in which the carrier substance may be arranged. In said headspace, the aroma substance comprising different chemical compounds can mix and homogenize with ambient air. As best seen in Fig. 3 and view A of Fig. 4, the inner surface 13, preferably the contacting portion of the inner surface 13, comprises a structure 25 dimensioned to counteract relative movement between the hollow element 10 and the drinking straw 80, when mounted. The structure 25 may be arranged anywhere along the longitudinal axis LA. In these embodiments, it is arranged in proximity of the distal end 12 of the hollow element 10. The structure 25 comprises at least one longitudinal ridge, preferably arranged substantially parallel to a longitudinal axis LA. The structure 25 may comprise a plurality of longitudinal ridges, which maybe arranged substantially equidistantly along the periphery of the inner surface 13. The ridges may be spaced apart from one another by substantially a same angular section. Alternatively, the angle by which the ridges are spaced apart may alter between neighboring pairs of ridges.

[0183] Figs. 1 to 4 also show the adapter 1 of the second aspect of the present invention. The adapter 1 is for a drinking straw 80 and comprises: a hollow element 10 having a mouth end 11 for being received in the mouth of a user, a distal end 12 opposite to the mouth end 11, an inner surface 13, and a stop portion 20. The adapter 1 is configured such that, when the hollow element 10 is mounted on the drinking straw 80 by inserting at least a part of the straw 80 into the hollow element 10: the stop portion 20 abuts a proximal end 81 of the straw 80; and a contacting portion of the inner surface 13 contacts a part of the outer surface of the straw 80. The hollow element 10 comprises one or more recesses 15, 15’, 15”, 15”’ on the inner surface 13, preferably on the contacting portion of the inner surface 13. The recesses 15, 15’, 15”, 15”’ are configured to facilitate inserting the at least a part of the straw 80.

[0184] Figs. 5 to 8 show a second, third, fourth, and fifth embodiment, respectively. The features shown in these figures are applicable to all other embodiments described elsewhere herein. For brevity, not all features of Figs. 5 to 8 are shown and / or described and merely differences are described. Features not described in detail or not described at all shall be considered to be the same as in one or more of the remaining embodiments.

[0185] Fig. 5 shows an adapter 1 for a drinking straw 80 (not shown) according to a second embodiment in a cross-sectional view. In this embodiment, the aroma fluid path 2 is composed of merely a first recess 15 and a second recess 15’. The second recess 15’ forms a cavity. Said cavity maybe dimensioned to allow for pressure compensation with respect to the drinking fluid. Hence, the aroma fluid path 2 is composed of the aroma channel 16, the second recess 15’ and the first recess 15.

[0186] Moreover, in this embodiment, the adapter 1 merely comprise one protrusion 18’, preferably arranged centrally within the cavity of the second recess 15’, and configured to provide a substantially sealing contact with the straw 80 (not shown) when mounted.

[0187] Fig. 6 shows an adapter 1 for a drinking straw 80 according to a third embodiment. The aroma channel 16 comprises a connection part 16”’, which runs on the periphery of the inner surface 13, substantially from one side to the opposite side. The connection part 16”’ connects the upstream end 16’ with the downstream end 16” of the aroma channel 16. The downstream end 16” of the aroma channel 16 is arranged substantially opposite to the side of the hollow element 10 where the upstream end 16’ of the aroma channel 16 is arranged.

[0188] Fig. 7 shows an adapter 1 for a drinking straw 80 according to a fourth embodiment. The aroma fluid path 2 is composed of merely one (first) recess 15. No cavity as described with respect to previous embodiments is provided.

[0189] Fig. 8 shows an adapter 1 for a drinking straw 80 according to a fifth embodiment with an aroma source 50 mounted. The stop portion 20 is provided further away from the mouth end 11 compared to the preceding embodiments. The distance d2between the stop portion 20 and the mouth end 11 is therefore larger compared to the preceding embodiments. It may be beneficial when the distance d2is larger compared to the preceding embodiments, as this allows to increase the extension of the straw 80 by virtue of the adapter 1 mounted on the straw 80. It could be conceivable that this plays a role when the straw 80 itself is rather short. However, plural of different use cases are applicable.

[0190] Further, having the stop portion 20 set back from the mouth end 11 can make the adapter 1 more comfortable to use. It may also act as a safety feature, as it could help preventing the straw 80 from accidentally going all the way through the adapter 1 into a mouth of the user. This may otherwise lead to a distraction and the adapter i could thereby potentially not function properly.

[0191] It may also help that the straw 8o is not exposed to the user and / or that the user does not make contact with the straw 8o with its tongue, whether intended or not intended. This can make the straw 8o more hygienic.

[0192] The hollow element 10 comprises two or three recesses 15, 15’, 15” on the inner surface 13, preferably on the contacting portion of the inner surface 13. The first recesses 15 extends further to the mouth end 11 from the peripheral edge 21 compared to the previous embodiments. This may allow for a better flow development when the aroma fluid is mixed with the drinking fluid. In particular, this may allow the aroma fluid to better flow around the proximal end 81 of the straw 80. The second recess 15’ may be in fluid communication with the third recess 15”, which may be in fluid communication with the first recess 15.

[0193] It will be apparent to those skilled in the art that numerous modifications and variations of the described examples and embodiments are possible in light of the above teaching. The disclosed examples and embodiments are presented for purposes of illustration only. Other embodiments may include some or all of the features disclosed herein. Therefore, it is the intent to cover all such modifications and alternate embodiments as may come within the true scope of this invention.

[0194] List of reference signs

[0195] 1 adapter

[0196] 2 drinking fluid flow

[0197] 3 aroma fluid flow

[0198] 10 hollow element

[0199] 11 mouth end

[0200] 12 distal end

[0201] 13 inner surface

[0202] 14 outer surface

[0203] 15 (first) recess 15’ second recess

[0204] 15” third recess

[0205] 15”’ fourth recess

[0206] 16 aroma channel

[0207] 16’ upstream end of the aroma channel

[0208] 16” downstream end of the aroma channel

[0209] 16”’ connection part of the aroma channel

[0210] 18 protrusion

[0211] 20 stop portion

[0212] 21 peripheral edge

[0213] 25 structure

[0214] 40 mounting portion

[0215] 41 rim

[0216] 45 mounting element

[0217] 50 aroma source

[0218] 51 aroma chamber

[0219] 53 fluid inlet

[0220] 54 fluid outlet

[0221] 55 counterpart element of the aroma source

[0222] 80 drinking straw

[0223] 81 proximal end

[0224] 82 distal end

[0225] LA longitudinal axis of the hollow element di length of the contacting portion d2distance between the stop portion to the mouth end

Claims

Claims1. An adapter (1) for a drinking straw (8o), comprising: a hollow element (io) having a mouth end (n) for being received in the mouth of a user, a distal end (12) opposite to the mouth end (11), an inner surface (13), and a stop portion (20); and an aroma channel (16) for being connected with an aroma source (50); wherein the adapter (1) is configured such that, when the hollow element (10) is mounted on the drinking straw (80) by inserting at least a part of the straw (80) into the hollow element (10): the stop portion (20) abuts a proximal end (81) of the straw (80); a contacting portion of the inner surface (13) contacts a part of the outer surface of the straw (80); and when the user additionally sucks on the mouth end (11): a drinking fluid, preferably a liquid such as water, can be provided to the user via the straw (80) to mouth of the user; and an aroma fluid, preferably a gas such as air comprising an aroma substance, can be provided to the mouth of the user via the aroma channel (16).

2. The adapter according to the preceding claim, wherein the aroma channel is arranged between the stop portion (20) and the distal end (12) of the hollow element (10).

3. The adapter according to any one of the preceding claims, wherein the contacting portion of the inner surface (13) has a length (di) of at least 0.5 cm, preferably at least 1.0 cm, more preferably at least 2.0 cm, more preferably at least 2.5 cm, more preferably at least 3.0 cm, more preferably at least 3.5 cm, most preferably at least 4.0 cm along a longitudinal axis (LA) defined by the hollow element (10), wherein the contacting portion of the inner surface (13) is preferably located between the stop portion (20) and the distal end (12).4- The adapter according to any one of the preceding claims, configured such that when the hollow element (io) is mounted on the drinking straw (8o), the contacting portion is coupled to the part of the outer surface of the straw (8o) in a substantially form-fitting manner and preferably substantially sealing manner.

5. The adapter according to any one of the preceding claims, wherein the hollow element (io) comprises a mounting portion (40) on the outer surface (14) of the hollow element (10) for mounting the aroma source (50).

6. The adapter according to the preceding claim, wherein the mounting portion (40) is arranged between the stop portion (20) and the distal end (12) of the hollow element (10).

7. The adapter according to claim 5 or 6, wherein the mounting portion (40) comprises a rim (41), preferably a peripheral rim (41), for supporting the aroma source (50).

8. The adapter according to any one of claims 5 to 7, wherein the mounting portion (40) comprises a mounting element (45) configured to engage with a counterpart element (55) of the aroma source (50), when the aroma source (50) is mounted, the counterpart element (55) preferably shaped complementary to the mounting element (45), the mounting element (45) being preferably configured to substantially prevent rotation of the aroma source (50) when mounted.

9. The adapter according to the preceding claim, wherein the aroma channel (16) is arranged substantially opposite to the side of the hollow element (10) on which the mounting element (45) is arranged, optionally wherein a downstream end (16”) of the aroma channel is arranged on the same side of the hollow element (10) where an upstream endwherein a downstream end (16”) of the aroma channel is arranged substantially opposite to the side of the hollow element (io) where an upstream end (16’) of the aroma channel (16) is arranged.

10. The adapter according to any one of the preceding claims, wherein the adapter (i) is configured such that, when the hollow element (io) is mounted on the drinking straw (8o): a drinking fluid path (3) for providing the drinking fluid is formed between the distal end (82) opposite the proximal end (81) of the straw (80) and the mouth end (11) of the hollow element (10), and an aroma fluid path (2) for providing the aroma fluid is formed between an upstream end (16’) of the aroma channel (16) and the drinking fluid path or the mouth end (11) of the hollow element (10).

11. The adapter according to the preceding claim, wherein the hollow element (10) has an internal channel within the wall of the hollow element (10), the internal channel forming part of the aroma fluid path (2).

12. The adapter according to claim 10 or 11, wherein the inner surface (13), preferably the contacting portion of the inner surface (13), comprises a recess (15) forming part of the aroma fluid path (2).

13. The adapter according to the preceding claim, wherein the recess (15) has a depth of at least 0.5 mm, preferably at least 1.0 mm, more preferably at least1.5 mm, most preferably at least 2.0 mm, and / or of at most 4 mm, preferably at most 3 mm, more preferably at most2.5 mm, most preferably at most 2 mm.

14. The adapter according to claims 12 or 13, wherein the recess (15) has an elongated shape, preferably along the longitudinal axis (LA) of the hollow element (10).

15. The adapter according to the preceding claim, wherein the recess (15) has a length along the longitudinal axis (LA) of the hollow element (10) of at least2 mm, preferably at least 4 mm, more preferably at least 10 mm, most preferably at least 20 mm, and / or of at most 40 mm, preferably at most 30 mm, more preferably at most 20 mm, most preferably at most 15 mm.

16. The adapter according to any one of claims 12 to 15, wherein the recess (15) is a first recess (15), and the hollow element (10) comprises a plurality of recesses (15, 15’, 15”, 15”’) on the inner surface (13), preferably on the contacting portion of the inner surface (13), the recesses (15, 15’, 15”, 15”’) forming part of the aroma fluid path (2).

17. The adapter according to the preceding claim, wherein the aroma channel (16) is in fluid communication with a second recess (15’) of the inner surface (13).

18. The adapter according to the preceding claim, wherein the second recess (15’) is in fluid communication with a third recess (15”) of the inner surface (13), and preferably with a fourth recess (15”’) of the inner surface (13).

19. The adapter according to the preceding claim, wherein the aroma fluid path (2) runs from the upstream end (16’) of the aroma channel (16) via a downstream end (16”) of the aroma channel (16) to the second recess (15’), then to the third recess (15”), then preferably to the fourth recess (15”’), then to the first recess (15)-20. The adapter according to any one of claims 16 to 19, wherein at least one recess (15) comprises a protrusion (18’, 18”’) overlapping at least partially with the aroma channel (16) along a projection along the longitudinal axis (LA) of the hollow element (10).

21. The adapter according to any one of claims 16 to 20, wherein at least one recess (15, 15’, 15”, 15”’) defines a cavity dimensioned to allow for pressure compensation with respect to the drinking fluid,wherein the protrusion (18’, 18”’) is preferably arranged centrally within the cavity, and configured to provide a substantially sealing contact with the straw (8o) when mounted.

22. The adapter according to any one of the preceding claims, wherein the stop portion (20) extends substantially perpendicularly from the inner surface (13) to the inside of the hollow element (10), preferably by at least 1.0 mm, preferably at least 1.5 mm, more preferably at least 2.0 mm, most preferably at least3.0 mm, and / or preferably by at most 5 mm, preferably at most 4.5 mm, more preferably at most 4.0 mm, most preferably at most 3 mm.

23. The adapter according to any one of the preceding claims if dependent on claim 12, wherein the recess (15) is provided at least partially on the stop portion (20).

24. The adapter according to claim 22 or 23, wherein the stop portion (20) is provided in proximity to the mouth end (11), wherein a distance (d2) between the stop portion (20) and the mouth end (11) is preferably at most 3 cm, more preferably at most 2 cm, even more preferably at most 1.5 cm, most preferably at most 1 cm.

25. The adapter according to any one of claims 22 to 24, wherein the stop portion (20) comprises a peripheral edge (21) configured to abut the proximal end (81) of the straw (80) when mounted, to provide at least partially a sealing fit.

26. The adapter according to the preceding claim when dependent on claim 12, wherein the recess (15) intersects the peripheral edge (21) and defines a substantially L-shaped path for the aroma fluid.

27. The adapter according to any one of the preceding claims, wherein the contacting portion and preferably the inner surface (13) is / are shaped substantially cylindrically.

28. The adapter according to any one of the preceding claims, wherein the hollow element (io) has an average wall thickness from the inner surface (13) to the outer surface (14) in proximity of the stop portion (20) and upstream of the stop portion (20) of at least 3 mm, preferably at least 4 mm, most preferably at least 5 mm, and / or of at most 10 mm, preferably at most 8 mm, most preferably at most5 mm, wherein the hollow element (10) preferably has an average wall thickness from the inner surface (13) to the outer surface (14) in proximity of the stop portion (20) and downstream of the stop portion (20) of at least 5 mm, preferably at least 6 mm, most preferably at least 8 mm, and / or of at most 12 mm, preferably at most 10 mm, most preferably at most 8 mm.

29. The adapter according to any one of the preceding claims, wherein the inner surface (13), preferably the contacting portion of the inner surface (12), comprises a structure (25) dimensioned to counteract relative movement between the hollow element (10) and the drinking straw (80), when mounted.

30. The adapter according to the preceding claim, wherein the structure (25) is arranged in proximity of the distal end (12) of the hollow element (10).

31. The adapter according to claim 29 or 30, wherein the structure (25) comprises at least one longitudinal ridge (25), preferably arranged substantially parallel to a longitudinal axis (LA) of the hollow element, wherein the structure (25) preferably comprises a plurality of longitudinal ridges (25), preferably arranged substantially equidistantly along the periphery of the inner surface (13).

32. An adapter (1) for a drinking straw (80), comprising: a hollow element (10) having a mouth end (11) for being received in the mouth of a user, a distal end (12) opposite to the mouth end (11), an inner surface (13), and a stop portion (20);wherein the adapter (i) is configured such that, when the hollow element (io) is mounted on the drinking straw (8o) by inserting at least a part of the straw (8o) into the hollow element (io): the stop portion (20) abuts a proximal end (81) of the straw (80); and a contacting portion of the inner surface (13) contacts a part of the outer surface of the straw (80); wherein the hollow element (10) comprises one or more recesses (15, 15’, 15”? 15”’) on the inner surface (13), preferably on the contacting portion of the inner surface (13), wherein the recesses (15, 15’, 15”, 15”’) are configured to facilitate inserting the at least a part of the straw (80).

33. The adapter according to the preceding claim, wherein the one or more recesses (15, 15’, 15”, 15”’) are configured to reduce a force of insertion by a factor of at least 1.1, preferably at least 1.2, more preferably at least 1.3, more preferably at least 1.4, most preferably at least 1.5 compared to a force of insertion without the one or more recesses (15, 15’, 15”, 15”’).

34. The adapter according to claim 32 or 33, wherein the one or more recesses (15, 15’, 15”, 15”’) cover at least 1%, preferably at least 2%, more preferably at least 3%, more preferably at least 5%, more preferably at least 8%, more preferably at least 10%, more preferably at least 12%, of the inner surface (13), preferably of the contacting portion of the inner surface (13), and / or wherein the one or more recesses (15, 15’, 15”, 15”’) cover at most 60%, preferably at most 50%, more preferably at most 40%, more preferably at most 35%, more preferably at most 30%, more preferably at most 25%, more preferably at most 20%, of the inner surface (13), preferably of the contacting portion of the inner surface (13).

35. The adapter according to any one of claims 32 to 34, wherein the adapter (1) comprises an aroma channel (16) for being connected with an aroma source (50), wherein the one or more recesses (15, 15’, 15”, 15”’) preferably form part of an aroma fluid path (2).

36. The adapter according to any one of claims 32 to 35, wherein the adapter (1) is an adapter (1) according to any one of claims 1 to 31.

37. The adapter according to any one of the preceding claims, wherein sucking of a user on the mouth end (11) means providing a pressure lower than ambient pressure on the mouth end (11).

38. An adapter set for a drinking straw (80), comprising: an adapter (1) according to any one of the preceding claims; and an aroma source (50), in particular an aroma container (50), preferably mounted on the mounting portion (40) of the hollow element (10).

39. The adapter set according to the preceding claim, wherein the aroma source (50) is arranged at least partially between the stop portion (20) and the distal end (12) of the hollow element (10).

40. The adapter set according to claim 38 or 39, wherein the aroma source (50) comprises a fluid inlet (53) for ambient fluid, and a fluid outlet (54) for a mixture of ambient fluid with an aroma substance, wherein the fluid outlet (54) is in fluid communication with the aroma channel (16).

41. The adapter set according to the preceding claim, wherein the fluid inlet (53) is arranged substantially opposite to the fluid outlet (54).

42. The adapter set according to any one of claims 38 to 41, wherein the aroma source (30) comprises an aroma chamber (51) comprising a carrier substance for an aroma substance.

43. A system comprising: an adapter set according to any one of claims 38 to 42; and a drinking straw (80);wherein the hollow element (to) is mounted on the drinking straw (80) by inserting the straw (80) into the hollow element (to).

44. The system according to the preceding claim, wherein the adapter is an adapter according to claim 25, and wherein the peripheral edge (21) abuts the straw(80), to provide at least partially a sealing fit.

45. The adapter according to any one of claims 1 to 37, wherein the adapter is a mouthpiece.

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