The present invention relates to an expander device for keeping an opening in a pouch open. The present invention also relates to a package system, which comprises the expander device, and to a method of using said package system. Technical background

Consumer products, such as food, cosmetics, cleaning supplies or medicine, are often filled and packaged in bags or pouches large enough to provide consumers with multiple servings. Commonly, the consumer opens the packaging along a tearing line or by cutting an opening in the packaging to access the contents of the packaging. If not all the product is used at once, the consumer is confronted with the problem of storing the remaining content for later use. Depending on the product, the consumer may choose to empty the product from the packaging into a storage box. Alternatively, the consumer may decide to leave the product inside the packaging and close the opened packaging with a clip, adhesive tape or rubber band that are often supplied with the packaging.

A known disadvantage of using a storage box is that there is a risk that substances or microorganisms left inside the storage box may contaminate or damage the product and thus, reduce product integrity and safety. This is particularly problematic for products that demand a high level of hygiene and product integrity and safety, such as food products for infants or vulnerable persons. While it is possible to circumvent the problem of initial product contamination by simply leaving the product inside the original packaging, it can be found that this solution is not only inefficient, difficult to use and unsuitable for performing accurate product dosing, but also that the initial level of hygiene inside the packaging cannot be maintained over an extended period of time. For example, depending on the size of the opening in the packaging, it can be difficult to retrieve the product inside the packaging with a dosing device, such as a scoop or cup. This problem may be aggravated each time the product filling level decreases. Thus, the dosing accuracy may be limited, inconsistent and/or deteriorate over time. Also, it is often relatively difficult to fully empty the packaging. Thereby, product utilisation is reduced and product is wasted. Further, before retrieving the product from the opened packaging, the user is often required to straighten up the packaging and to widen the opening by inserting fingers or the handle of a spoon to form a suitable access opening. However, this increases the risk of contaminating the product. Moreover, recycling of rubber bands, clips and adhesive tape can be challenging. Often, they are designed for single-use only so that it is difficult to reuse them. Accordingly, every packaging is commonly shipped including such closing means, which leads to a deterioration of the ecological footprint of each packaging.

Thus, it becomes clear that known multi-serve packaging solutions are insufficient for storing and accessing products in a manner required for ensuring hygiene, safety and integrity of the product while keeping the ecological footprint of each packaging low.

Therefore, it is an object of the present invention to provide a device, a system and a method that allow to overcome known drawbacks of established packaging solutions, respectively. In particular, it is an object of the present invention to provide packaging solutions for safely storing the product inside its packaging after being opened while reducing the ecological impact of the packaging solution and ensuring usability, hygiene, product integrity and product safety, respectively. Summary of the invention

These and other objects, which become apparent upon reading the description, are solved by the subject-matter of the independent claims. The dependent claims refer to preferred embodiments of the invention.

A first aspect of the invention relates to an expander device for keeping a pouch opening of a pouch open. The expander device comprises a ring member, by which a central opening is at least partially surrounded. The ring member comprises at least one flap being convertible between an expanded position and a collapsed position. In the expanded position, the flap extends from the ring member on one side of the central opening to keep clear of the central opening for allowing to bring the ring member into alignment with a circumferential rim section of the pouch opening. In the collapsed position, the flap extends from the ring member at least partially into or through the central opening so that a fitment section of the flap faces laterally outside with respect to the central opening so as to be fitted against an inner side surface of the rim section to keep the pouch opening open.

In other words: an expander device is provided that is suitable for keeping an opening (e.g. an aperture, orifice or perforation) in a pouch open. The expander device comprises a ring member, which defines a central opening therein. For example, the ring member may comprise a (not necessarily circular) body with an opening that may be arranged centrally. The ring member comprises at least one flap that is convertible between two (different) positions (configurations). Preferably, the conversion maybe reversible. For example, the flap maybe a structural element that maybe attached along one of its edges to the ring member, preferably such that the flap may be relatively movable, e.g. pivotable, with respect to the ring member between at least two positions. In the expanded position, the flap extends preferably entirely on (only) one side of the central opening. Preferably, the expander device may be configured such that, in the expanded position, the flap does not block or overhang the central opening and/or it does not to come into contact with any part on the opposite side of the central opening. In the collapsed position, the flap extends from the ring member at least partially into or through the opening in order to engage with or to apply contact pressure to the inner side surface of the rim section for keeping the pouch opening open.

Thus, a device is provided, by which the pouch opening can be expanded so that, for example, the pouch opening (or pouch material defining the pouch opening) is straightened out, spread out, unfolded, and/or increased in its extension (e.g. diameter, width). This is facilitated by the expander device’s capability of being convertible between (at least) the following two positions:

(i) A first position (the expanded position) exists, where the expander device can be aligned and positioned onto the pouch opening. It is advantageous that in this position the flap(s) are on a single side of the central opening as the flaps can be used for (manually) holding the expander device to arrange and align the ring member with the pouch opening. As none of the flaps overhangs or suspends into the central opening in this configuration, the risk that they get caught inside the pouch is reduced. In addition to simplifying the alignment process in this manner, hygiene can be improved as well since the hand of the operator is not at risk of coming into contact with the pouch.

(ii) A second position (the collapsed position) exists, where the pouch opening is securely held in place with respect to the pouch opening. The flap(s) may somehow cooperate with the pouch opening, the ring member or other (external) components (e.g. a storage container) for applying a holding force onto the pouch material. Moreover, the central opening defines an opening with a shape, by which access to the pouch can be improved since the shape of the central opening can be designed independently from the shape of the pouch opening. This allows to tailor the shape of the central opening to a measuring device required for the application and to use the expander device for a plurality of different products. Also, this facilitates to access the entire content of the packaging more easily. Once the packaging is fully emptied, the expander device can be reused and cleaned, thereby improving the environmental footprint of the individual packaging.

Thus, the expander device allows to overcome the drawbacks of known packaging solutions.

Preferably, the flap may be integrally formed with the ring member. For example, the flap may be a constituent part of the ring member. Preferably, the flap may be manufactured by two-component injection molding, so that, for example, the flap may be formed as a unit with the ring member.

This configuration allows to simplify the manufacturing and cleaning of the expander device so that the level of hygiene can be improved.

According to a further preferred embodiment of the invention, the flap may be provided on an edge section of the ring member.

Thereby, handling of the expander device can be improved as it is easier to access and operate the flap. Also, the available installation space can be utilised efficiently.

Preferably, the expander device may be configured such that in operation, it is (preferably only) arrangeable on the pouch such that the one side of the central opening is above (up from) the pouch opening, such that it faces away from the pouch opening, and/or such that it is on the same side with respect to the pouch opening as with respect to the central opening.

Preferably, the flap may be provided on an upper edge section of the ring member. Thereby, it is possible to easily manipulate the flap(s) in operation.

According to a preferred embodiment of the invention, the flap may comprise a fastener for applying and/or maintaining contact pressure against the rim section of the pouch opening. Alternatively or additionally, the flap may comprise a fastener for fixing the flap at least in the collapsed position. Preferably, the fastener may be a locking structure or a magnet. The fastener may be fixable with a fastener counterpart that may be provided at the ring member or at a storage container for receiving the pouch. Preferably, in the collapsed position, the flap(s) may extend (fully) on the side opposite to the one side with respect to the central opening.

Thereby, it is possible to provide the flap with a structure for (at least or only) temporarily fixing or securing the flap in its position with respect to the rim section. Preferably, a holding force is generated or increased through the provision of fasteners. Also, the pouch opening can be releasably, conveniently and safely secured so that it is possible to use the entire space available in the pouch opening.

According to a further preferred embodiment of the invention, the flap may have a length in an extension direction being equal to or larger than a height or thickness of the ring member. Alternatively or additionally, the flap may have a length in an extension direction being equal to or larger than a height of the central opening.

This configuration facilitates that the flap has a sufficient length for ensuring contact between the inner side surface and the flap.

According to a preferred embodiment of the invention, the expander device and/or the ring member may comprise a plurality of flaps. Preferably, the flaps may be (evenly) distributed about the (inner and/or outer) perimeter (circumference) of the ring member. Herein, the expression “circumference” and “perimeter” may be used interchangeably and generally may be understood, for example, as any (circumferential and/or continuous) external boundary of the ring member or outer edge around it. For example, the outer perimeter of a square- or rectangular-shaped ring member may be defined by its four external side edges.

Thereby, the capabilities of the expander device to keep the pouch opening open can be improved as the flaps are engageable with different portions of the pouch opening. Moreover, the expander device can be centred with respect to the pouch opening. Also, holding forces can be balanced with such configuration as well as the pouch opening can be expanded equally on each side along the circumference of the pouch opening.

According to a preferred embodiment of the invention, the at least one of the at least one or plurality of flaps may comprise a levelling section provided at a distal edge of the flap with respect to the ring member, wherein, in the collapsed state, the levelling section bulges towards the central opening or is laterally offset from the fitment section towards the central opening.

Thereby, a section can be provided which allows for a dosing device, like a spoon or a scoop, to easily slide along so as to easily remove excess powder, e.g., from a bowl preferably having a defined volume, thus allowing for a highly accurate dosing. As the levelling section is provided at the flaps, it can be integrally provided and does not require an additional element. Also, as the flaps are in the collapsed state during use, the levelling section is securely placed inside the pouch and above the product received therein, so that excess powder easily falls back into the pouch.

According to a further preferred embodiment of the invention, the levelling section may comprise a straight edge section.

This allows for an accurate levelling of a product carried in a dosing device, when sliding along the levelling section.

According to a further preferred embodiment of the invention, the ring member may comprise a circumferential attachment section, which may at least partially surround the central opening. Preferably, the circumferential attachment section may be suitable (and/or configured) to fit the expander device at the rim section of the pouch opening or at a container opening of a storage container that is suitable for receiving a or said pouch. Preferably, the attachment section may face laterally outside and/or inside with respect to the central opening.

With this preferable configuration, a dedicated structure can be provided, which may at least partially (preferably fully) extend along the central opening. Accordingly, the attachment section may form an external (to the inside or the outside) (lateral) boundary of the ring member. Preferably, the attachment section may be configured for being engaged with the pouch or the storage container. Thus, the expander device can be fixed onto the pouch or container in a defined manner so that the risk of the expander device loosening therefrom during a dosing process can be reduced. For example, the attachment section may function as a shoulder portion for receiving or counteracting forces generated by the flap(s) engaging with the pouch material. According to a preferred embodiment of the invention, the attachment section may comprise a connection section protruding laterally away from and/or towards the central opening.

Thereby, a form fit connection of the expander device to the pouch or the storage container - preferably in connection with a corresponding counterpart on the pouch or the storage container - can be provided, thus resulting in an effective connection of the expander device.

According to a preferred embodiment of the invention, an outer circumferential surface of the ring member may form the attachment section. Therein, preferably the outer circumferential surface may taper with increased distance from the one side. Alternatively or additionally, an inner circumferential surface of the ring member may form the attachment section. Therein, preferably the inner circumferential surface may taper with decreased distance from the one side.

Thereby, bringing the expander device into alignment with the pouch opening is supported as the inner side surface of the rim section is guided along the attachment section. Thereby, the usability of the expander device is improved. Also, the expander device is secured more reliably in the respective opening due its wedge-shaped profile, by which frictional holding forces and contact pressure can be increased. In addition, dosing processes can be simplified as the shape of the attachment section also supports guidance of the dosing devices.

According to a further preferred embodiment of the invention, the expander device (preferably at least its ring member) may have a round, circular, oval, square, rectangular, or polygonal shape. Preferably, the ring member may be circumferentially closed. Preferably, the ring member may extend substantially within a plane. The expander device (or at least or only the ring member) and/or the flap(s) maybe made of metal, plastic material or bioplastics, and/or a fiber-based material, such as paper, cardboard or pulp. Preferably, recyclable and/or biodegradable materials maybe used. Alternatively or additionally, an antibacterial material may be used. More preferred, the expander device may be made from a combination of such materials, such as a combination of polyethylene (PE) and fibre (molded) based materials, or PE and silicon, or PE and a thermoplastic. However, these are only examples and do not represent a complete enumeration. Thereby, manufacturing the expander device can be simplified. Also, the expander device can be used in a multitude of different applications. According to a preferred embodiment of the invention, the expander device (preferably the ring member) may comprise gripping sections for receiving fingers of a user for gripping. For example, the gripping sections may be preferably provided by dents in the ring member that project towards or away from the central opening. Thereby, handling of the expander device can be simplified and its ergonomics can be improved as the hand span width required for gripping the expander device with one hand can be reduced.

According to a further preferred embodiment of the invention, the fitment section may at least partially comprise an inhibiting feature. For example, the inhibiting feature may be a structured surface, which, for example, may comprise a rib and/or dot structure. Alternatively or additionally, the inhibiting feature may be an outer inhibiting layer, such as a coating, a laminate or a sticker. The inhibiting feature (preferably the inhibiting layer) may be made of an anti-skid material like rubber. Alternatively or additionally, if present, the attachment section may preferably at least partially comprise such an inhibiting feature.

Thereby, it is possible to increase the friction between the respective surfaces so that the expander device is held more firmly in the desired position. For example, with this configuration the risk that the expander device loosens from the pouch during travel or accelerated motion is reduced.

According to a preferred embodiment of the invention, the ring member may comprise a circumferential device rim section that may protrude laterally away from and/or towards the central opening. Preferably, the circumferential device rim section may

(preferably additionally) extend parallel to the plane. Preferably, the flap(s) may extend from the device rim section. The device rim section may be suitable (and preferably configured) for supporting the expander device on the rim section of the pouch opening. The device rim section may be suitable (and preferably configured) for supporting the expander device on a container rim section of a container opening of a storage container for receiving the pouch with (e.g. including) the expander device. Preferably, the device rim section may be an upper device rim section, which preferably may be provided on an upper part of the expander device.

Thereby, it is possible to provide the expander device, for example, with a flange facing towards and/or away from the central opening. This facilitates, for example, exact positioning of the expander device on the pouch and/ or the storage container. Moreover, hygiene and product integrity can be improved as product cannot fall between container wall and the pouch when being retrieved from the pouch. According to a preferred embodiment of the invention, the ring member comprises a circumferential first rim section, wherein the flap(s) extend(s) from the first rim section, and an integral second rim section being provided opposite to the first rim section with respect to the central opening for fitting the expander device at the rim section of the pouch opening or at a container opening of a storage container for receiving the pouch.

Thereby, the height of the ring member may be increased, which allows easier access to the pouch opening and interaction with the flaps. Moreover, the flaps may thus be provided in a more extended way, thus facilitating their functionality. According to a further preferred embodiment of the invention, the ring member, at least in the second rim section, has an inverted V-shape or U-shape in circumferential cross- section, comprising an inner wall section facing (or even at least partially delimiting) the central opening and an outer wall section facing laterally outside the expander device, wherein the inner wall section and the outer wall section define a receiving space therebetween for receiving and preferably sandwiching the rim section of the pouch opening or a rim section circumferentially surrounding the container opening of the storage container in the fitted state of the expander device.

Thereby, a secure connection of the expander device to the pouch or the storage container can be facilitated. When the rim section of the pouch or the storage container is even sandwiched between the inner and outer wall sections, a tight sealing of the connection from both sides (i.e. outer and inner side) can be effectively provided.

According to a further preferred embodiment of the invention, one of the inner wall section and the outer wall section may comprise the attachment section or connection section, if present, preferably facing towards the receiving space. lO

Thereby, the functionality of the attachment section or the connection section can be effectively provided by and at the ring member or its second rim section. If facing towards the receiving space, this functionality can be easily applied while reducing the risk of defective connection.

According to a further preferred embodiment of the invention, one of the inner wall section and the outer wall section may comprise the device rim section, if present, preferably facing towards the receiving space.

Thereby, the functionality of the device rim section can be effectively provided by and at the ring member or its second rim section. If facing towards the receiving space, this functionality can be easily applied while reducing the risk of defective connection.

In a preferred embodiment, one of the inner wall section and the outer wall section may comprise the attachment section or connection section, and the other one of the inner wall section and the outer wall section may comprise the device rim section, each preferably facing towards the receiving space.

Thereby, the functionality of these two sections can be effectively provided by and at the ring member or its second rim section.

According to a further preferred embodiment of the invention, the expander device may further comprise a lid for closing the central opening at least in the collapsed position. Therein, the lid may be separately provided or integrally formed with the expander device or the ring member. Preferably, the lid may be provided on the one side with respect to the central opening.

Thereby, it is possible to increase the functionality of the expander device as it is not only possible to keep the pouch opening open but also to provide means for closing the pouch after completion of a dosing process, for example. Thus, a pouch being provided with such expander device can be stored advantageously and the product can be kept fresh and hygienic. Moreover, no extra storage box for placing the opened pouch inside may be needed. Thus, the ecological footprint of the packaging solution can be improved. The separately provided lid can be made of any material desired for the desired purpose. For instance, it can be made of metal, like metal sheet (e.g. like a storage container), or it can be made of plastic.

The integrally formed lid may be integrally formed with the expander device or the ring member through a hinge. Hence, the lid can be opened and closed several times in a defined manner. The hinge may be integrally formed, thus reducing the number of parts and simplifying the production.

According to a preferred embodiment, the expander device may comprise (at least one or multiple) support elements for receiving a dosing device at or within the ring member. For example, the dosing device may be a spoon or scoop. Thereby, it is possible to place and store a dosing device at or preferably even within the expander device.

At least one of the support elements may protrude laterally inward from the ring member (into the central opening). Preferably, the support elements may be arranged opposite to each other (e.g. with respect to the central opening) and/ or facing each other. The support elements may be arranged equally distanced from each other along the perimeter (circumference) of the ring member. The support elements may project into the central opening. Preferably, the support elements maybe arranged at one of the two opposite ends of the ring member. Preferably, the support elements may (at least) partially cover the central opening. Preferably, the support elements may have a (hollow) semicircle or arc shape. Preferably, the support elements may be integral with the ring member. However, it is also conceivable that the support elements may be removable or detachable. Preferably, the support elements may extend within the same plane as the ring member.

Alternatively or additionally, the support elements may comprise surface features for securing (attaching/holding) the dosing device to the ring member. For example, the surface features may be fasteners, protruding structures, clips, latches or spring locks, and/ or a surface for increasing friction or adhesive forces between the ring member and a dosing device.

A further aspect of the present invention relates to a package system. The package system comprises a pouch carrying a food product. The package system also comprises the above-described expander device. The flap(s) are configured to be inserted into a pouch opening of the pouch when being converted from the expanded position to the collapsed position to keep the pouch opening open by fitment of the fitment section against an inner side surface of a circumferential rim section of the pouch opening.

Thereby, all effects that were described for the expander device can also be achieved with the package system. Furthermore, it is possible to provide a package system with an expander device that is easy to clean and reusable so that packaging material can be reduced. In particular, the provision of separate elements for dispensing product from the pouch, such as a spout, can be avoided. Moreover, it is unnecessary to provide each pouch with a separate closing means. Instead, the expander device only needs to be provided once for the consumer and can be reused subsequently.

According to a preferred embodiment of the invention, the package system may further comprise a storage container having a container opening for receiving the pouch and the expander device.

By providing a storage container, pouches that do not possess sufficient rigidity to stand upright on its own can be used in the package system. Such configuration may also be advantageous once filling levels of the product become low. Also, the package system can be used for traveling or in applications with frequent movement.

Preferably, the expander device (or at least its ring member) may be configured to press the rim section towards or against a circumferential inner wall section of the storage container. Preferably, the expander device (or at least its ring member) may be configured to press the rim section at the container opening or adjacent to the container opening. Alternatively or additionally, the expander device (or at least its ring member or its second rim section) may be configured to sit on or be fitted onto the storage container or maybe fitted into the container opening.

Thereby, the pouch opening can be kept safely in place inside the storage container. Moreover, with this configuration, it can be ensured that the space inside the storage container is used and no gaps exist between the storage container and the pouch at least near (adjoining) the container opening. Thus, hygiene can be improved.

According to a preferred embodiment, the package system may further comprise a dosing device. Preferably, the dosing device may be configured to be arrangeable within the central opening such that the dosing device is (entirely enclosed) within the ring member. Preferably, the expander device may be arranged inside the pouch opening such that the dosing device may be received by the support elements at a lower end of the ring member (preferably, the lower end being the end facing towards a substance contained inside the pouch when the expander device is inserted in the pouch opening).

For example, the dosing device may be a spoon or scoop. The dosing device may comprise a handle and a bowl preferably having a defined volume with an opening. The handle maybe adjustable in length (e.g. comprising a telescopic slide-out mechanism or by attaching extension elements). Thereby, it is possible to provide a dosing device that is easy to operate and that is adjustable in size (length) to adapt to the size of the central opening, the size of the pouch opening and/or the depth of the pouch.

The handle may comprise structures, such as ribs, for improving the bending stiffness and rigidity of the handle. Thereby, dosing (scooping) of substances can be facilitated that require a certain amount of force to be retrieved. For example, if powdery substances clump together it can be difficult to retrieve the substance without putting some strain on the dosing device. Preferably, the dosing device (e.g. the handle and the bowl) may extend within a single plane. The handle may extend laterally away from the opening of the bowl. Preferably, the bowl may have a similar (or maximum) height to the height of ring member. Thereby, the dosing accuracy can be improved as excess powder can be removed easily from the bowl. Also, it is possible to place the dosing device on a flat side, which simplifies storage and securing the dosing device.

The dosing device may be made from any material, such as plastic (e.g. PE), metal, and/or a fiber-based material, such as paper, cardboard or pulp. Thereby, the ecological impact of providing a package system with a dosing device can be reduced as the dosing device may be produced from sustainable, recyclable and/ or compostable materials.

Preferably, the handle and/or the bowl may be provided with locking structures that may be configured to correspond with the aforementioned surface features provided on the support elements. A further aspect of the present invention relates to a method for use of a package system. The method comprises the steps of providing a package system as described above. Preferably, the package system as described above maybe provided such that the flap(s) of the expander device may be in the expanded position. Optionally, the method may comprise the step of opening the pouch in order to provide a pouch opening. The ring member is placed adjacent to or over the pouch opening so that the ring member is in alignment with the circumferential rim section of the pouch opening. The flap(s) are converted from the expanded position to the collapsed position so that the fitment section is fitted against the inner side surface of the rim section to keep the pouch opening open. Optionally, the rim section may be clamped between the fitment section on the one hand and the ring member on the other hand. Alternatively or additionally, preferably the rim section may be clamped between the fitment section on the one hand and the ring member the storage container on the other hand. Optionally, the pouch may be closed with a lid, which is preferably attached to the expander device for closing the central opening. According to a preferred embodiment, the method may further comprise the steps of providing a storage container of the package system and receiving the pouch inside the storage container. Preferably, the dosing device maybe placed (and secured) inside the expander device. Optionally, the storage container may be closed with a container lid.

Thereby, it is possible to derive all aforementioned effects of the package system. The method allows for leaving the product inside its packaging, which commonly offers the properties required for safely storing the product. Further, it allows for a hygienic and safe use of the package system and improves the utilisation of product contained inside the pouch. Filling the product in a separate storage container is not required, thereby reducing the risk of contaminating the product with external substance or bacteria. By providing a reusable expander device that can be easily cleaned, the environmental impact of using package systems can be improved. Optionally, the method may further comprise the step that, when converting the flap(s) from the expanded position to the collapsed position, the rim section may be pressed at least with the flap(s) towards or onto a circumferential inner wall section of the storage container preferably at or adjacent to the container opening. Optionally, the method may further comprise the step of fitting or sitting the expander device with its second rim section and/or attachment section onto the storage container preferably at the container opening. Such configuration allows to use pouches that are (significantly) smaller than the provided storage container as the expander device is suitable for providing sufficient holding forces and guidance for using the pouch with the storage container. Brief description of drawings

Further features, advantages and objects of the invention will become apparent for the skilled person when reading the following detailed description of embodiments of the invention and when taking in conjunction with the figures of the enclosed drawings. In case numerals have been omitted from a figure, for example for reasons of clarity, the corresponding features may still be present in the figure.

Figure 1 shows different views of an embodiment of an expander device according to the invention; namely (A) a perspective top view, (B) a first side (long side) view, (C) a second side (short side) view, (D) a perspective bottom view, and (E) a top view.

Figure 2 shows a perspective top view of the expander device of Figure 1.

Figure 3 shows a perspective top view of a further embodiment of an expander device of the invention in the expanded position.

Figure 4 shows a perspective top view of the expander device of Figure 3 in the collapsed position.

Figure 5 shows a perspective view of an embodiment of a package system of the invention and steps of an embodiment of a method for use of the package system according to the invention.

Figure 6 shows a perspective view of a further embodiment of a package system of the invention.

Figure 7 shows a perspective view of steps of a further embodiment of a method for use of a package system according to the invention with the package system of Figure 6. Figure 8 shows a perspective top view of a further embodiment of an expander device of the invention.

Figure 9 shows a perspective bottom view of the expander device of Figure 8. Figure 10 shows a perspective top view of the expander device of Figure 8 with a dosing device.

Figure 11 shows the arrangement of Figure 10 in a bottom perspective view. Figure 12 shows a perspective top view of a further embodiment of an expander device of the invention in the expanded position.

Figure 13 shows a perspective top view of the expander device of Figure 12 in the collapsed position.

Figure 14 shows a perspective top view of a further embodiment of an expander device of the invention in the collapsed position and with a lid being open.

Figure 15 shows a perspective top view of a further embodiment of an expander device of the invention in the collapsed position.

Figure 16 shows a perspective bottom view of the expander device of Figure 15 in the collapsed position.

Figure 17 shows a bottom view of the expander device of Figure 15 in the collapsed position.

Figure 18 shows a top view of the expander device of Figure 15 in the collapsed position.

Figure 19 shows a cross-sectional view of a part of the expander device of Figure 15 in the collapsed position and with the lid being closed. Figure 20 shows a perspective top view of a further embodiment of an expander device of the invention in the collapsed position.

Figure 21 shows a top view of the expander device of Figure 20 in the collapsed position.

Figure 22 shows a perspective bottom view of the expander device of Figure 20 in the collapsed position.

Figure 23 shows a bottom view of the expander device of Figure 20 in the collapsed position.

Figure 24 shows a top view of a further embodiment of an expander device of the invention in the collapsed position and with a lid being open.

Figure 25 shows a top view of the expander device of Figure 24 with the lid being closed.

Figure 26 shows a perspective top/front view of a further embodiment of an expander device with a lid being closed and being provided on a container.

Figure 27 shows a perspective top/rear view of the expander device of Figure 26. Figure 28 shows a perspective top/rear view of the expander device of Figure 24 being provided on a container. Detailed description

The Figures show different views and aspects of different embodiments of the invention.

A first aspect of the present invention relates to an expander device too for keeping a pouch opening 410 of a pouch 400 open. Figures 1 to 28 show exemplarily different embodiments and aspects of the expander device too. Preferably, the expander device too maybe provided as a single piece. Preferably, the expander device too maybe made by (two component) injection molding. i8

An example for the pouch 400 is exemplarily illustrated in Figures 5 to 7. The pouch 400 may carry food products, for example. Preferably, it may carry granular or powdery food products, such as milk powder or coffee beans. However, it is also conceivable that the pouch 400 may carry different food or non-food products. The pouch 400 may be provided, for example, as stand-up packaging, sachet, or bag, such as a gusseted bag. Preferably, the pouch 400 may be made of a paper, cardboard, metallic, metallized and/or plastic material. Preferably, the pouch 400 may be made of a material that comprises at least sufficient rigidity to stand upright on its own. Preferably, the pouch 400 may be made of a stretchable material. The pouch 400 may be circumferentially sealed by heat sealing and/ or may comprise tearing lines for opening the pouch 400 along one of its edges to provide an opening therein. Preferably, the pouch 400 may comprise a volume between 200 ml and 10 litres. More preferred, the pouch 400 may comprise a volume between 200 ml and 3.5 litres. However, this is not a complete enumeration and other configurations of the pouch 400 are conceivable.

The pouch 400 may comprise an opening, such as the pouch opening 410, preferably on an upper end or an upper side portion of the pouch 400. Preferably, the pouch opening 410 may comprise a circumferential rim section 411. The circumferential rim section 411 may define the pouch opening 410. The pouch opening 410 may be formed by an inner side surface 412. The inner side surface 412 may comprise the rim section 411. This is exemplarily illustrated in Figures 5 to 7. The pouch opening 410 may have any shape or form. Preferably, the pouch opening 410 may be round or rectangular.

The expander device too may have a preferred operational orientation with respect to the pouch. Therein, for example, the expander device too may be preferably configured such that in operation, it is arrangeable on the pouch 400 such that one of its two opposite ends faces upwards (away) from the pouch opening 410 (thus, being an upper end thereof) while the respective other end faces to the pouch opening 410 (thus, being a lower end thereof). Figures 2 to 4, 5, 7, 8, 10, 12 to 16, 19, 20, 22 and 26 to 28 show such an operational orientation exemplarily. However, these Figures are only examples and other orientations in operation are conceivable.

The expander device too comprises a ring member 120, by which a central opening 110 is at least partially surrounded. This is exemplarily illustrated in Figures 1 to 28. Preferably, the central opening no may completely penetrate the ring member 120. For example, the central opening no may form a passage between two opposite ends (e.g. the upper end and the lower end) or sides of the expander device 100 and/or the ring member 120. Preferably, the central opening no may extend from one side 111 of the central opening no to its other side 112. For example, the central opening no maybe a through-hole. This is exemplarily illustrated in Figures 1 to 24. Preferably, the central opening no maybe constant or varying in its lateral extension(s) along the two opposite ends of the expander device 100 and/or the ring member 120. For example, the central opening no may have a constant diameter. Preferably, the central opening no may have dimensions, such as width or diameter, that are sufficient for accessing the inside of the pouch 400 with a dosing device, such as a spoon or cup. For example, the central opening no may have a diameter within the range of 1 cm to 30 cm. Preferably, the central opening no may be large enough for placing the expander device too over the pouch 400.

The central opening no may have any shape and form. In Figures 1 to 5 and 20 to 28 the layout of the central opening no is exemplarily illustrated as being rectangular with rounded corners. In Figures 6 to 19, the central opening no is exemplarily shown with a circular outline. However, these are only examples and the central opening no may be provided with a different layout or form. For example, the central opening no maybe oval. Preferably, the central opening no maybe centred with respect to the ring member 120. The expander device too maybe symmetrical, preferably mirror symmetrical, when seen along a direction normal to the central opening no.

In Figures 1 to 28, the ring member 120 is exemplarily illustrated with a closed profile, by which the central opening no is completely surrounded. However, it is also conceivable that the ring member 120 may be provided with an open profile so that the central opening no is only partially surrounded by the ring member 120. Generally, the ring member 120 (and/or the expander device too) may have a round, circular or oval shape, such as exemplarily illustrated in Figures 6 to 19. Alternatively, the ring member 120 (and/or the expander device too) may have a square, rectangular or polygonal shape, such as exemplarily illustrated in Figures 1 to 5 and 20 to 28. The shape of the ring member 120 may be the same or different from the shape of the central opening no. Preferably, the ring member 120 may extend substantially within a plane such as exemplarily illustrated in Figures 1 to 28. Preferably, the ring member 120 may be placeable from above onto the pouch 400 or into the pouch opening 410. Preferably, the ring member 120 may have a lateral extension (i.e. length and/or width, for example) in one extension direction (within the plane) of 3 cm to 30 cm. Preferably, the expander device 100 and/or the ring member 120 maybe designed such that it can be handled by an operator with one or two hands. This is exemplarily illustrated in Figures 5 and 7. For example, a maximum diameter or width of the expander device 100 may be delimited by an average human hand span width.

Preferably, the expander device 100 or the ring member 120 may be made of metal, plastic material or bioplastics. For example, polypropylene (PP), polyethylene (PE), polyphenylene ether (PPE) or resin may be used. Preferably, sustainable, recyclable and/or biodegradable materials maybe used. For example, it is conceivable that the ring member 120 may be made from fibre-based materials, such as pulp. Preferably, a combination of PE and thermoplastic, or of PE and silicon, or of plastic and metal, or of plastic (such as PE) and fiber-based (molded) materials, or any other combination of the aforementioned materials may be used.

Preferably, the ring member 120 may comprise a circumferential attachment section 160 for fitting the expander device too at the rim section 411 of the pouch opening 410. Alternatively or additionally, as illustrated in Figures 5, 7, 19 and 26 to 28, the circumferential attachment section 160 maybe provided for fitting the expander device too at a container opening 510 of a storage container 500, in which preferably the pouch 400 may be received.

The storage container 500 is exemplarily illustrated in Figures 5 to 7, 19 and 26 to 28. The storage container 500 may have any shape or form. The storage container 500 may be suitable for receiving the pouch 400 and the expander device too. Preferably, the storage container 500 may have a volume between 200 ml and 10I. The storage container 500 maybe made of a glass, metal, plastic and/or paper material. Preferably, the storage container 500 may have an opening, such as the container opening 510, on one (an upper) end. The container opening 510 may comprise a container rim section 511. Preferably, the container opening 510 may be defined (on the inside) by the container rim section 511. A circumferential inner wall of the storage container 500 may define the inside of the storage container 500. A circumferential inner wall section 512 may be adjacent to the container opening 510. This is exemplarily illustrated in Figure 6 and 19. The attachment section 160 may at least partially surround the central opening no and may face laterally outside and/or inside with respect to the central opening no. This is exemplarily illustrated in Figures l to 28. For example, an outer circumferential surface 161 of the ring member 120 may form the attachment section 160. As exemplarily illustrated in Figures 1 to 4 and 8 to 13, the outer circumferential surface 161 faces laterally outside with respect to the central opening no. Alternatively or additionally, the attachment section 160 may be formed by an inner circumferential surface 162 of the ring member 120, which, as exemplarily illustrated in Figures 1 to 4, 8 to 13 and 19, faces laterally inside with respect to the central opening no. Preferably, the outer circumferential surface 161 and/or the inner circumferential surface 162 may taper with increased distance from the one side 111. Alternatively or additionally, the outer circumferential surface 161 and/ or the inner circumferential surface 162 may taper with decreased distance from the one side 111. The two side views in (middle of) Figure 1 (i.e. Figures lB and lC) highlight such configurations exemplarily. The attachment section 160 may (at least partially) comprise an inhibiting feature, like a rib or dot structure, a coating, a laminate or a sticker. The inhibiting feature may be made of an anti-skid material, like rubber.

As illustrated in Figure 19, the attachment section 160 may comprise a connection section 163 protruding laterally away from and/ or - as illustrated - towards the central opening 110. The attachment section 160 may thus operate as a snap-on feature to allow for an effective form-fit connection of the expander device too with the container 500.

The ring member 120 may comprise a circumferential device rim section 180 for supporting the expander device too on the rim section 411 of the pouch opening 410. Alternatively or additionally, as exemplarily illustrated in Figures 7 and 19, the device rim section 180 may provide support for the expander device too on the container rim section 511 of the container opening 510 of the storage container 500 for receiving the pouch 400 with the expander device too. Therein, the device rim section 180 may function, for example, as a collar, by which relative movement of the expander device too with respect to the storage container 500 and/or the pouch 400 may be restricted in at least one, preferably at least two directions. The device rim section 180 may protrude laterally away from (as illustrated) and/or towards the central opening 110. The device rim section 180 maybe provided on the ring member 120 as a flange or lip. Figures 1, 2, 6 to 11, 12 and 13, for instance, illustrate the device rim section 180 protruding laterally towards the central opening 110 (inwards). Figures 10, 11 and 19, for instance, also illustrate the device rim section 180 protruding laterally away from the central opening no (outwards). In comparison, the expander device too illustrated in Figures 3 to 5 does not comprise the device rim section 180. The device rim section 180 may extend at least partially around the circumference of the ring member 120. Preferably, the device rim section 180 may be parallel to the plane (i.e. including an identical plane), in which the ring member 120 extends.

As exemplarily illustrated in Fig. 12 to 19, the expander device too may comprise a lid 140 for closing the central opening 110. The lid 140 may be provided separately or, as illustrated in Fig. 12 to 19 and 24 to 28, it may be integrally formed with the expander device too or the ring member 120. Preferably, the central opening 110 may be closed by the lid on the one side 111. For example, the lid 140 may be connected to the expander device too via a hinge 141, as illustrated in Fig. 12 to 18, 24, 25, 27 and 28. The hinge 141 may be a separate element or, as illustrated, preferably integral. The hinge 141 may be of any type, like a normal hinge (e.g., as illustrated in Fig. 27) or a flip top hinge (e.g., as illustrated in Fig. 28). As desired, the expander device too may comprise one or a plurality of hinges 141. As also illustrated in Fig. 12 to 15, 18 and 24, the lid 140 may comprise an inner lid surface 142 facing towards and covering the central opening 110 when the lid 140 is closed. The inner lid surface 142 may be provided with an information feature 145, e.g. showing instructions for use. The information feature 145 can be a painting, a sticker or even be integral with the lid, e.g. an engraving. In the closed condition, an outer surface 144 of the lid 140 faces outwards and away from the central opening 110. The lid 140 may further comprise a connection section 143 here extending circumferentially about the inner lid surface 142 to allow the lid 140 being releasably fixed to the ring member 120 thus securely covering the central opening 110 in the closed condition. Therefore, the lid 140 may snap with its connection section or ring 143 onto the ring member 120. As illustrated in Fig. 14, 15 and 24, the connection section 143 may further comprise a locking section 146 - here being part of an opening flap 147 - which can be releasably fixed with - here snapped onto - a corresponding connection section 122 of the ring member 120. Similar connection sections 122 are also shown in Fig. 20 for an embodiment with a separately provided lid.

Moreover, the expander device too (and/or the ring member 120) may comprise gripping sections for receiving fingers of a user for gripping. These are not illustrated in the Figures. The gripping sections may preferably be provided by dents in the ring member 120 that project towards or away from the central opening 110. The ring member 120 comprises at least one flap 150. Preferably, the ring member 120 may comprise a plurality of flaps 150, which may be distributed evenly about an outside edge of the ring member 120, such as the circumference of the ring member 120. This is exemplarily illustrated in all Figures, where the expander device too comprises three (Figures 14 to 19) or four (Figures 1 to 13 and 20 to 24) flaps 150. However, this is only an example and not to be understood as delimiting because any number of the flaps 150 can be provided.

As illustrated in Figures 12 to 19 and 24, in case of the expander device too having a plurality of flaps 150 as well as a hinged lid 140, the flaps 150 are preferably symmetrically arranged with respect to the hinge 141 to allow easy handling likewise for right-hander and left-hander consumers.

For simplicity, it is only referred to “the flap 150” in the following. However, the corresponding description is equally applicable for the plurality of flaps 150.

Preferably, the flap 150 may be made of a material that may be the same as the ring member 120 and/or as the inhibiting feature or different therefrom.

Preferably, the flap 150 may have a free end that faces towards the central opening 110 and, opposite thereto, a connecting end for connecting the flap 150 to the ring member 120.

The flap 150 may be provided on an upper edge section 121 of the ring member 120. This is exemplarily illustrated in Figures 1 to 11. In Figures 5 and 7, the expander device too is exemplarily shown in relation to the pouch 500 and the container 500. Therein in a preferred operational orientation, the upper edge section 121 may be provided on an upper part of the ring member 120. Preferably, the upper edge section 121 may extend circumferentially along the ring member 120. Alternatively or additionally, the flap 150 may preferably extend from the device rim section 180. Preferably, the flap 150 may be integrally formed with the ring member 120. Preferably, the flaps 150 may be arranged symmetrically with respect to the central opening 110. This is exemplarily illustrated in Figures 1 to 24. The flap 150 may have a length in an extension direction that may be equal to or larger than a height H120 or thickness T of the ring member 120. Preferably, the height H120 of the ring member 120 may be between 1 cm to 10 cm, preferably between 1 cm to 5 cm. Alternatively or additionally, the flap 150 may have a length in an extension direction that may be equal to or larger than or a height H110 of the central opening 110. The respective dimensions are exemplarily indicated in Figure 1. For example, the thickness T of the ring member 120 may be defined as the extension between the outer circumferential surface 161 and the inner circumferential surface 162. Alternatively, the thickness T may be understood as the flange width of the device rim section 180. Preferably, the extension of the flap 150 between the free end and the connecting end may be larger than the height H110 of the central opening 110 and smaller than the diameter or width of the central opening 110. Preferably, the ring member 120 may have a lateral extension (e.g. diameter, length and/or width) in one extension direction (within a plane) of 3 cm to 90 cm, more preferred of 3 cm to 35 cm.

The flap 150 is convertible between (at least or only) two positions, namely an expanded position and a collapsed position. The two different positions are exemplarily illustrated in Figures 3 and 4, in Figures 5 and 7, and in Figures 12 and 13. As exemplarily shown in Figures 1, 2, 6 to 13, the flap 150 may be freely (and/or reversibly) movable (e.g. rotatable or pivotable) between the respective two positions.

As exemplarily illustrated in Figures 3 and 12, in the expanded position, the flap 150 extends from the ring member 120 on the one side 111 of the central opening 110 such that the central opening 110 is kept clear. In this configuration, the ring member 120 can be brought into alignment with the circumferential rim section 411 of the pouch opening 410 as exemplarily illustrated in Figures 5 and 7.

As exemplarily illustrated in Figures 4 and 13 to 24, in the collapsed position, the flap 150 extends from the ring member 120 at least partially into or through the central opening 110 so that a fitment section 151 of the flap 150 faces laterally outside with respect to the central opening 110. In this configuration, the flap 150 can be fitted with the fitment section 151 against the inner side surface 412 of the rim section 411 to keep the pouch opening 410 open. This is exemplarily illustrated in Figures 5 and 7. In this configuration, it is possible to access the pouch 400 via the central opening 110 in an access direction AD that is exemplarily indicated by an arrow in Figure 7. Preferably, the above-described lid 140 of the expander device 100 may be provided to close the central opening 110 in the collapsed position.

As mentioned before, the Figures show only examples for the respective two positions of the flap 150. However, the flap 150 can be arranged to take different positions that may still fall within the specifics of the configurations of a “collapsed position” or an “expanded position” as defined above. Thus, if, for instance, the pouch material cannot be compressed or expanded by the flap 150 in the manner illustrated in Figures 5, 7 and 19, the flap 150 may take a position different from the illustrated position, which, however, could still be compliant with the definition of the collapsed position.

As described above, the flap 150 comprises the fitment section 151. The fitment section 151 may be provided on a side surface of the flap 150. This is exemplarily illustrated in Figures 1 to 24. Preferably, at least parts of the fitment section 151 may comprise an inhibiting feature. The inhibiting feature maybe a structured surface (e.g. comprising a rib and/or dot structure), and/or an outer inhibiting layer (e.g. a coating, a laminate or a sticker made of a rubber material).

Preferably, the flap 150 may comprise at least one fastener 157 for applying contact pressure against the rim section 411 of the pouch opening 410 and/ or for fixing the flap 150 at least in the collapsed position. For example, the fastener 157 may be a locking structure or a magnet. The fastener 157 may preferably be fixable with a fastener counterpart 158 that may be provided at the ring member 120 and/ or at the storage container 500. For instance, the fastener counterpart 158 maybe a magnetic wall section or a corresponding locking structure. In Figure 1, for example, the fastener 157 and the fastener counterpart 158 are exemplarily indicated by broken lines.

The flap 150 may be connected to ring member 120 via a connecting section 152. Preferably, the connecting section 152 may be provided on the connecting end. The connecting section 152 maybe a separate element from the flap 150 or it maybe integral therewith. The connecting section 152 may be made from the same material or a different material than the flap 150. For example, the connecting section 152 may be provided by a flexible, preferably bendable, material, such as plastic, a plastic tape or a fabric. Alternatively, the connecting section 152 may be provided as a reduction in the material of the flap 150. The connecting section 152 may function as a hinge to provide the flap 150 pivotable with respect to the ring member 120. The flap 150 maybe (freely) pivotable relative to the ring member 120 (preferably the upper edge section 121) or the central opening 110 by an angle of +/-100 degree, more preferred in a range between 90 degree and 100 degree in either direction (with respect to the central opening 110). For example, Figures 2 and 8 to 11 illustrate exemplarily the flap 150 being pivoted by an angle of o degree. In comparison, Figures 3 and 4 as well as Figures 12 to 24 illustrate the flap 150 being pivoted by an angle between +/-90 and +/-100 degrees. Moreover, by providing the flap 150 on the device rim section 180, it may be possible to increase the pivot angle of the flap 150 accordingly as can be seen from a comparison of the embodiments of the expander device 100 illustrated in Figures 2 and 3.

As illustrated in Fig. 12 to 24, the connection section 152 may extend in an arcuate manner; here in Fig. 12 to 18 along the round shape of the expander device too or its ring member 120. Due to this rounded shape of the connection section 152, the flap 150 is forced into either the (vertically) upward direction - i.e. the expanded position as shown in Fig. 12 - or the (vertically) downward direction - i.e. the collapsed position as shown in Fig. 13 to 24. This comes about since the flap 150, when being moved or pivoted out of either the expanded or collapsed position, is deformed and thus tends to relax into its less deformed condition, which is the expanded and collapsed position, respectively. This allows the flap 150 be securely kept in the expanded position (see Fig. 12) if desired during the positioning of the expander device too. Once positioned, the flap 150 can be pushed downwards or towards the central opening 110 or pouch 400. Therefore, the flap 150 is deformed upon being flexed downwards until it reaches a deformation position from which it tends to relax into the collapsed position as shown in Fig. 13 to 24. As the flap 150 is then securely kept in the collapsed position, no additional fastener 157 and fastener counterpart 158 are needed.

The flap 150 may also be provided with an information feature 156, e.g. showing instructions for use of the flap 150. The information feature 156 can be a painting, a sticker or even be integral with the flap 150, e.g. an engraving.

For example, in case the filling level of the product inside the pouch 400 would initially not allow for the flap 150 being brought into the collapsed position, it may become necessary to either empty the pouch 400 sufficiently before using the expander device too or to distribute the product within the pouch 400 such that the flap 150 can be brought into the collapsed position. The pouch 400 may be provided with a headspace sufficient for bringing the flap 150 into the collapsed position. As illustrated in the embodiment of Fig. 14 to 28, and as can be best seen in Fig. 19, the ring member 120 may comprise a circumferential first rim section 171 from which the flap(s) 150 extend (e.g. comprising the upper end), and an integral second rim section 172 being provided opposite to the first rim section 171 with respect to the central opening 110 (e.g. comprising the lower end) for fitting the expander device too at the rim section 411 of the pouch opening 410 or -as illustrated in Fig. 19 - at the container opening 510 of the storage container 500 for receiving the pouch 400. The ring member 120, at least in the second rim section 172, may have an inverted V- shape or U-shape in circumferential cross-section, as also illustrated in Fig. 19. This ring member 120 or second rim section 172 comprises an inner wall section 173 facing the central opening 110 and an outer wall section 174 facing laterally outside the expander device too. The inner wall section 173 and the outer wall section 174 thus define a receiving space 175 therebetween for receiving and preferably sandwiching the rim section 411 of the pouch opening 410 or - as illustrated in Fig. 19 - the container rim section 511 circumferentially surrounding the container opening 510 of the storage container 500 in the fitted state of the expander device too. As further illustrated in Fig. 19, one of the inner wall section 173 or the outer wall section

174 - here the outer wall section 174 - may comprise the attachment section 160 or connection section 163, preferably facing towards the receiving space- This allows for a form-fit connection with a corresponding structure 513 of the pouch 400 or the container 500; here a crimped section of the container rim section 511.

As also illustrated in Fig. 19, one of the inner wall section 173 or the outer wall section 174 - here the inner wall section 173 - comprises the device rim section 180, preferably facing towards the receiving space. If both the attachment section 160 and the device rim section are provided at the second rim section 172, one of which is preferably provided on the inner wall section 173 and the other one of which is preferably provided on the outer wall section 174, as illustrated in Fig. 19 as well. Preferably, the expander device too may comprise at least one support element 131, 132 for receiving a dosing device (such as the below described dosing device 300) within (and/or inside) the ring member 120. Preferably, two or more support elements 131, 132 may be provided. The support elements 131, 132 may have any configuration (shape, size, and/or their respective arrangement within the ring member 120) that is suitable for blocking a dosing device 300 from falling through the central opening 110. The support elements 131, 132 may be configured such that a dosing device 300 is storable inside the ring member 120. For example, the support elements 131, 132 may be a platform or a ledge protruding laterally inward from the inner surface 113 of the ring member 120, respectively. This is exemplarily illustrated in Figures 8 to 11 and 20 to 24. By providing the support elements 131, 132 in this manner, a dosing device 300 can be stored securely within the expander device too. Thereby, the risk of contaminating the interior of the pouch 400 can be reduced since the operator can place a dosing device 300 immediately after its usage inside the expander device too and thus, any contact with external surfaces or substances can be avoided. At least one of the support elements 131, 132 may protrude laterally inward from the ring member 120 (into the central opening 110). Thereby, the support elements 131, 132 may (at least) partially cover the central opening 110. Preferably, the support elements 131, 132 may be arranged opposite to each other with respect to (the center of) the central opening 110. Preferably, the support elements 131, 132 may be arranged at one of the two opposite ends between which the ring member 120 extends (longitudinally). The support element 131, 132 may at least partially extend between the two opposite ends of the ring member 120. The support elements 131, 132 maybe provided integral with the ring member 120. Preferably, the support elements 131, 132 may extend within the same plane (mentioned above) as the ring member 120. This is exemplarily shown in Figures 9 to 11. However, the support elements 131, 132 can be arranged also at any other position between the two opposite ends of the ring member 120. For example, the support elements 131, 132 may be arranged halfway between the two opposite ends of the ring member 120. The support elements 131, 132 may have the same shape and size, or they may be configured to be different from each other. For example, the support elements 131, 132 may have a (hollow) semicircle, arc or bow shape. This is exemplarily shown in Figures 8 to 11. Therein, a first support element 131 is exemplarily shown with a semicircle shape. In this illustrated example, a second support element 132 has the shape of a segment of a semicircle. However, these are only examples and other shapes are conceivable. Preferably, the support elements 131, 132 may be arranged and/or distributed along an inner edge of the ring member 120 (perimeter of the central opening no) such that each of the support elements 131, 132 is arranged between two flaps 150. This is exemplarily illustrated in Figures 8 to 11.

Preferably, the ring member 120 may comprise a support rim section 133 that may protrude laterally away towards the central opening no. The support rim section 133 may extend along the perimeter of the ring member 120. This is exemplarily illustrated in Figures 8 to 11. The support rim section 133 may be provided to provide additional structural support for the support elements 131, 132.

Further, the support elements 131, 132 may comprise surface features for securing (attaching/holding) a dosing device to (inside) the ring member 120. For example, the surface features may be fasteners, protruding structures, clips, latches or spring locks, and/or a surface layer for increasing friction and/or adhesive forces between the ring member 120 and a dosing device. Thereby, it can be achieved that a dosing device is not only kept by the support elements 131, 132 from falling through the central opening 110 but also secured (fixed) in a defined position within the expander device too.

In case of the dosing device too having the lid 140, the support elements 131, 132 may also be provided on or at the lid 140 for receiving the dosing device 300 preferably such that the dosing device 300 can be stored securely within the expander device too in the closed condition of the lid 140, as exemplarily illustrated in Fig. 14, 15, 18 and 24. This is preferably obtained by the dosing device 300 here being supported on the inner lid surface 142 so that, when closing the lid 140, the dosing device 300 is move along and at least partially or completely positioned inside the ring member 120 in the central opening 110 when the lid 140 is closed onto the ring member 120. Therefore, the support elements 131, 132 are preferably provided on or at the inner lid surface 142.

As illustrated in Fig. 14 to 24, at least one of the at least one or the plurality of flaps 150 (here all flaps 150) comprises a levelling section 154, which is provided at a distal edge (i.e. the free end) of the flap 150 with respect to the ring member 120. In the collapsed state, the levelling section 154 bulges towards the central opening 110 or is laterally offset from the fitment section 151 towards the central opening 110, so that the levelling section 154 allows for the dosing device 300 to slide along and thus levelling the product carried therewith. In a preferred embodiment as shown, the levelling section 154 comprises a straight edge section 155 for a most accurate levelling function. A further aspect of the invention relates to a package system 200. Figures 5 to 7 show different embodiments of the package system 200.

The package system 200 comprises at least one pouch 400 containing a food product. The pouch 400 may be the same, similar or different from the pouch 400 described before. The package system 200 further comprises the expander device 100 as described above. Therein, the flap 150 is configured to be inserted into the pouch opening 410 when being converted from the expanded position to the collapsed position to keep the pouch opening 410 open by fitment of the fitment section 151 against the inner side surface 412 of the rim section 411 of the pouch opening 410.

Preferably, the package system 200 may further comprise a storage container 500 with a container opening 510, which may be suitable for receiving the pouch 400 and the expander device 100. This is exemplarily illustrated in Figures 5 to 7. The storage container 500 may be the same, similar or different from the storage container 500 described above. The package system 200 may also comprise a container lid 550 for closing the storage container 500. The container lid 550 may be a snap on lid, for example. Alternatively or additionally, the container lid 550 may be connected to the container 500 via a hinge. Preferably, the container lid 550 may be a twist-off lid. As mentioned, the lid 140 may also come along with the expander device 100 and is preferably integrally formed therewith, e.g. via the hinge 141.

As exemplarily shown in Figures 5 and 7, the expander device 100 may be configured to press the rim section 411 of the pouch 400 against the circumferential inner wall section 512 of the storage container 500, which maybe preferably at or adjacent to the container opening 510. For example, the inner wall section 512 may be at a distance of up to 5 cm from the container opening 510, more preferred within 0,2 cm to 5 cm from the container opening 511. The expander device 100, preferably at least its ring member 120 or the second rim section 172, may be configured to sit on or be fitted onto the storage container 500. For example, the expander device 100 may be fitted into or onto the container opening 510. This is exemplarily illustrated in Figures 5, 7, 19 and 26 to 28. The package system 200 may further comprise the mentioned dosing device 300 for measuring and dispensing a suitable amount of product contained inside the pouch 400. For example, the dosing device 300 maybe a scoop, spoon or measuring cup. Figures 5 to 7 and 10 to 13 as well as Fig. 24 show the dosing device 300 exemplarily.

The dosing device 300 may comprise a handle 310 for being gripped and a bowl 320 for retrieving a defined amount of product from the pouch 400.

Preferably, the bowl 320 may have a defined volume that maybe open towards one side in a filling direction. The bowl 320 may comprise a defined surface structure. For example, slits penetrating a portion of the bowl 320 or ribs protruding therefrom may be provided as such surface structure. For example, the ribs may be used to indicate a defined filling level. Preferably, the bowl 320 may have a similar height as the ring member 120 so that the dosing device 300 can fit inside (within) the expander device too. Thereby, the dosing device 300 can be stored inside the expander device too.

The handle 310 may extend along a longitudinal direction. Preferably, the filling direction of the bowl 320 may be perpendicular to the longitudinal direction of the handle 310. Preferably, the handle 310 may comprise structures, such as ribs, for improving the bending stiffness and/or rigidity of the dosing device 300 in order to reduce the risk of the dosing device 300 breaking during scooping. The handle 310 may be adjustable in length. For example, the handle 310 may comprise a telescopic mechanism. Preferably, the handle 310 may be extendable in size through a spring mechanism (biased towards maximum length) or by attaching extension elements. Such configurations may be advantageous if the package system 200 is used with pouches 400 of different sizes. Preferably, the handle 310 may be attached to the bowl 320. The handle 310 may be integral with the bowl 320. The handle 310 may extend laterally away from the bowl 320 with respect to its opening. Preferably, the dosing device 300 (preferably the handle 310 and the bowl 320) may extend within a single plane.

The dosing device 300 may be made from any (food safe) material, such as plastic (e.g. PE), metal, and/or a fiber-based material, such as cardboard or pulp. The dosing device 300 may extend longitudinally with a length that corresponds with the diameter of the central opening 110. Preferably, the dosing device 300 may have a length that is smaller than the central opening 110 (at the lower end, for example).

It is also conceivable that, for example, the handle 310 and/or the bowl 320 may be provided with locking structures that may be configured to correspond with the surface features provided on the support elements 131, 132. The dosing device 300 may have a length that is larger than the distance (gap) between the two opposite support elements 131, 132. This is exemplarily illustrated in Figures 10 and 11.

Preferably, the expander device 100 may be arranged inside the pouch opening 410 such that - in the connected state of the pouch 400 and the expander device 100 - the support elements 131, 132 are at the lower end of the expander device 100. Figures 8 and 10 illustrate this orientation of the expander device 100 exemplarily. Thereby, it can be achieved that the dosing device 300 can be stored within the expander device 100 while not contacting any part of the substance contained inside the pouch 400. The same advantage applies if the dosing device 300 is supported at or in the lid 140 such that it is positioned inside the ring member 120 in the closed condition of the lid 140. In the open condition, as illustrated in Fig. 12 to 15, 18 and 24, the dosing device 300 is then even further distanced from the substance contained inside the pouch 400 and even more easy to grasp for a user. Accordingly, the risk of a user touching the substance when retrieving the dosing device 300 from the pouch 400 can be reduced.

Preferably, the dosing device 300 and the expander device 100 maybe configured such that the dosing device 300 may be placeable onto the support elements 131, 132 such that the opening of the volume of the bowl 320 faces towards the lower end of the expander device too (and thus, towards the substance contained inside the pouch 400). Thereby, substances from a previous dosing process can fall back into the pouch 400 so that an accumulation and waste of substance can be reduced. The dosing device 300 may be placed and/or stored inside the expander device too in the collapsed position and/or in the expanded position.

Moreover, the package system 200 may also comprise an opening device 600 for opening the pouch 400. For example, the opening device 600 maybe scissors.

A further aspect of the present invention relates to a method for use of the package system 200. Figures 5 and 7 show exemplarily various steps of different embodiments of a method for use of the package system 200.

The method comprises the step of providing the package system 200 as described above. Preferably, the package system 200 may be provided such that the flap 150 of the expander device too is already in the expanded position. Alternatively, the expander device ioo may be provided in a different configuration and the flap 150 may be converted by the hand 700 of an operator into the expanded position. This is exemplarily illustrated in Figures 5 and 7. Preferably, the pouch 400 is opened by hand 700, e.g. by the operator, with an opening device 600, such as a tearing line provided on the pouch 400 or scissors, to provide the pouch opening 410. This is exemplarily illustrated in Figures 5 and 7.

The ring member 120 is placed adjacent to or over the pouch opening 410 so that the ring member 120 is in alignment with the circumferential rim section 411 of the pouch opening 410. This is exemplarily illustrated. Preferably, the ring member 120 may be brought in proximity to the pouch opening 410 such that the flap 150 may reach inside the pouch 400 in the collapsed position. The flap 150 is converted from the expanded position to the collapsed position so that the fitment section 151 is fitted against the inner side surface 412 of the rim section 411 to keep the pouch opening 410 open. This is exemplarily illustrated in Figures 5 and 7. Thereby, for example, the pouch 400 may be converted from a folded configuration that is less accessible to an unfolded configuration that allows easy access to the product inside the pouch 400. This is exemplarily indicated by gussets blocking the available space in the pouch opening 410 in Figures 5 and 7. Therefore, optionally, the rim section 411 may be clamped between the fitment section 151 on the one hand and the ring member 120 on the other hand. The pouch 400 may be closed with a lid 140, which may be preferably attached to the expander device too for closing the central opening 110.

Preferably, the dosing device 300 maybe placed and stored on the support elements 131, 132 inside the expander device too preferably in its collapsed position. The dosing device 300 may be placed inside the expander device too with the opening of the bowl 320 facing towards the inside of the pouch 400. Preferably, the dosing device 300 may be fastened to the support elements 131, 132 inside the ring member 120 by interlocking structures provided on the support elements 131, 132 and the dosing device 300. Alternatively, the dosing device 300 may also be supported by the lid 140 of the expander device too, if present, preferably in a manner such that the dosing device 300 is positioned inside the ring member 120 in the closed condition of the lid 140. Furthermore, the storage container 500 of the package system 200 may be provided. The pouch 400 may be placed inside the storage container 500. This is exemplarily illustrated in Figures 5 and 7. The rim section 411 may be clamped between the fitment section 151 on the one hand and the storage container 500 and/or the inner wall section 173 (see, e.g., Fig. 19) on the other hand. Alternatively or additionally, when converting the flap 150 from the expanded position to the collapsed position, the rim section 411 maybe pressed at least with the flap 150 towards or onto the circumferential inner wall section 512 of the storage container 500 and/or the inner wall section 173. This is exemplarily illustrated in

Figures 5 and 7 for the former as well as in Fig. 19 for the latter. Preferably, this engagement between the inner wall section 512, 173 and the pouch 400 may be near or close to the container opening 510. This is exemplarily illustrated in Figures 5, 7 and 19. Optionally, the expander device 100 may be fitted or sat with its attachment section 160 and/or its second rim section 172 onto the storage container 500, for example at the container opening 510 as illustrated in Figures 5, 7 and 19. The storage container 500 may be closed with a container lid 550 or the lid 140, as exemplarily illustrated in Figures 26 to 28. The invention is not limited by the embodiments as described hereinabove, as long as being covered by the appended claims. All the features of the embodiments described hereinabove can be combined in any possible way and be provided interchangeably.