EP3787986B1 - Beverage container - Google Patents

Description

The present invention relates to a beverage container, in particular a (metallic) beverage can. The beverage container is used to store content, e.g. B. a liquid, wherein the beverage container in the closed state (initial state) is under an overpressure relative to the environment or relative to an atmospheric pressure of approximately 1 bar.

Especially in the case of beverage cans with carbonated contents, the beverage container can be under an internal pressure of up to 6.2 bar before it is opened for the first time.

From the EP 0 227 213 A2 a beverage container is known in which a pressure vessel (widget) is arranged inside the beverage container. In this case, a gas is stored in the pressure container, which emerges from an opening of the container when the beverage container is opened and causes the liquid stored in the beverage container to foam. As a rule, the gas comprises an inert gas, possibly additionally carbon dioxide. The inert gas is z. B. Nitrogen. The pressure container is arranged in a bottom area of the beverage container, so that the gas escaping from the pressure container into the liquid stimulates the largest possible volume of the liquid to foam. For this purpose, the pressure vessel is completely submerged in the liquid. An opening in the container with a diameter of at least 0.2 millimeters is described.

The pressure container reduces the volume provided for the liquid in the beverage container.

There is a constant need to improve such beverage containers and to make foaming of the liquid as uniform and constant as possible.

The EP 0 643 662 A1 discloses a beverage container in which an elongate gas tank is located at the bottom of the beverage container.

The U.S. 5,660,867 A is directed to a gas ejection container which can be placed in a beverage container. The gas ejecting container can be fixedly arranged in the beverage container, and an opening of this container can be arranged near the bottom of the beverage container.

The U.S. 5,203,140A discloses a pot-shaped container which can be closed by a lid with an integral nitrogen container. The nitrogen tank is located centrally on the lid and extends in the axial direction.

The WO 95/00416 A1 is directed to a beverage container with a gas tank floating in the container.

The U.S. 5,584,165 A discloses a gas container that can be fixed to the bottom of the container.

The U.S. 2011/183057 A1 is directed to a gas container that can be placed in a beverage container. The gas container can be arranged in the area of the bottom of the beverage container.

The U.S. 5,683,732 A is directed to a beverage container with a gas tank located at the bottom.

The D8 WO 98/10999 A1 is directed to a beverage container with a gas tank snap-fitted to the bottom.

The GB 2 273 917 A shows an embodiment variant of an elongated gas container that can be arranged in a beverage bottle.

The EP 0 597 606 A1 shows a beverage container with a chamber arranged at the bottom, from which an extension extends along the axial direction towards the lid.

The U.S. 5,552,168 A discloses a beverage container having a tubular gas tank attached to one end of the beverage container.

The object of the invention is therefore to at least partially solve the problems existing with reference to the prior art and in particular to provide a beverage container in which foaming of the liquid that is as uniform and constant as possible or stable foam can be achieved. At the same time, the volume available for the liquid in the beverage container should be used as efficiently as possible.

These objects are achieved with a beverage container according to the features of patent claim 1. Further advantageous configurations of the beverage container are specified in the dependent patent claims. It should be pointed out that the features listed individually in the dependent patent claims can be combined with one another in a technologically meaningful manner and define further refinements of the invention. In addition, the features specified in the patent claims are specified and explained in more detail in the description, with further preferred configurations of the invention being presented.

A (metallic) beverage container according to claim 1 is proposed.

In the initial state, the beverage container is in particular under a first pressure which is greater than a second pressure of an environment (in particular the second pressure is at most 1.1 bar, the second pressure is preferably at least 2.5 bar). As long as the beverage container is in the initial state, the pressure of the volumes (first volume, second volume, third volume) is in particular the same in each case.

In the initial state, the pressure vessel is at least partially filled with a gas (possibly additionally partially with the liquid). When the beverage container is opened and the pressure is equalized with the environment, at least the gas (possibly also the liquid) emerges from the third volume via the at least one opening into the liquid.

The beverage container is in particular a beverage can.

In an upright state of the beverage container, the base is at the bottom and the lid is at the top in relation to the direction of gravity. In particular, the wall area between the base and the lid extends along an axial direction (essentially) parallel to the direction of gravity (when the beverage container is upright). and in a circumferential direction all the way around the base and lid.

The first volume is in particular between 0.1 and 5 liters, preferably at most 3 liters, particularly preferably at most 1.5 liters.

The second volume is in particular between 1% and 10%, preferably between 1% and 5% less than the first volume.

The third volume is in particular between 1% and 5%, preferably between 1% and 3% of the first volume.

In particular, a sum of the second volume and the third volume is at least 1% smaller than the first volume.

The beverage container is usually opened via an opening in the lid that can be actuated. In particular, the opening cannot be closed again or the overpressure prevailing in the initial state cannot be restored by closing the opening again.

Surprisingly, it has been shown that the formation of foam can be significantly improved by the smaller opening. In particular, the gas in the pressure vessel escapes over a longer period of time, so that a more uniform formation of foam can be observed. Furthermore, the formation of bubbles in the liquid can be influenced, so that an overall more homogeneous and also more stable foam can be produced. In particular, it has been found that the third volume can be further reduced as a result of better foam formation. A smaller amount of gas is required in the pressure vessel in order to achieve the previously required foam formation. Accordingly, the second volume can be increased and the third volume reduced, so that more liquid can be stored in the beverage container.

The pressure vessel may have a plurality of openings. In particular, all openings have a diameter of less than 0.2 millimeters, in particular less than 0.18 millimeters, preferably less than 0.15 millimeters, particularly preferably less than 0.12 millimeters, very particularly preferably 0.1 millimeters or less (especially at least 0.05 millimeters). Providing multiple openings can affect the foam formation effectively. In particular, a larger partial volume of the liquid, ie the second volume, can be excited in this way.

In particular, in the case of an upright beverage container, at least two of the plurality of openings are arranged at different heights from one another.

The beverage container extends in particular from the base towards the lid along an axial direction. The axial direction preferably runs parallel to the wall area. In particular, the beverage container is essentially cylindrical and has (apart from structures eg in the lid, eg for opening/closing the first volume) an axis of rotation or axis of symmetry which extends parallel to the axial direction.

The height extends in particular along the axial direction, starting from a lowest point of the first volume in the area of the bottom to a highest point in the area of the cover. The distance between the lowest point and the highest point, measured along the axial direction, is called the maximum height. A value of the height at which z. B. is an opening is referred to as altitude.

In particular, in the case of an upright beverage container, at least two of the plurality of openings are arranged at an identical level of height.

The first volume has a greatest height in particular between the base and the cover along an axial direction, the pressure vessel having a length along the axial direction between a first end and a second end which is at least 50%, in particular at least 75%, preferred is at least 85% of the maximum height.

The length is particularly preferably at least 90% or even at least 95% of the greatest height.

According to another embodiment, the length is 98% or even almost 100% (e.g. at least 99.5%) of the greatest height.

In particular, when the beverage container is upright, the third volume of the pressure container extends into an upper region adjacent to the lid, with the upper region being above a predetermined fill level of the liquid.

As a result of the third volume protruding into the upper area, it is possible for the second volume to be further enlarged in comparison with the first volume.

In particular, the first volume has at least one lowest point when the beverage container is upright. The third volume of the pressure vessel extends into a lower area adjacent to the bottom, so that the at least one opening is located no more than 10 millimeters, in particular no more than 8 millimeters, preferably no more than 6 millimeters, particularly preferably no more than 4 millimeters from the lowest point. In particular, a small distance from the lowest point is required, which is at least predetermined by a wall thickness of the pressure vessel.

The previously known gas-filled pressure vessels in beverage containers were generally arranged centered relative to the floor and relative to the wall area. In doing so, these pressure vessels were pushed to the limit on the (regular) arranged in the first volume into a curved bottom and, if necessary, attached to it by means of an adhesive. The location on the domed floor inevitably results in an opening in the pressure vessel being located at a greater distance from a lowest point of a first volume. So far, however, only a small partial volume of a liquid stored in the beverage container could be stimulated to form foam.

However, the pressure vessel proposed here, which extends along the height, can also be arranged eccentrically to the base or to the first volume due to its smaller extent in a radial direction. In this way, the pressure container can be arranged in particular (directly) adjacent to the wall area and can extend into the core bevels of the beverage container (the deepest edge of the beverage container, which regularly extends around the curved bottom).

As a result of the arrangement of the at least one opening at the small distance from the lowest point, a larger partial volume of the second volume can be excited by the outflow of at least the gas from the pressure vessel.

In particular, the pressure vessel extends into both slanted cores of the beverage container, so that it is fixed in position (ie extending into both slanted cores) via the slanted cores at least in relation to a radial direction.

In particular, the pressure vessel can be elastically deformed at least at one end, preferably at both ends, by the beverage container (in particular exclusively) (preferably by the slanted core or by both slanted cores), so that the pressure vessel in the slanted cores and in the first volume is also opposite a circumferential direction is fixed in position.

At least the first end and the second end of the pressure vessel are (immediately) adjacent to a wall (e.g. the floor, the Lid or the wall area) of the beverage container arranged so that a stop between the end and the wall is formed at least with respect to an axial direction. Furthermore, the pressure vessel is arranged relative to the wall such that a further displacement of the pressure vessel along the axial direction forces at least a displacement of the end of the pressure vessel contacting the wall in the radial direction or in the circumferential direction. In this context, adjacent means in particular that the end is arranged at a maximum distance of 2 millimeters from the wall. Immediately adjacent then means that the end contacts the wall.

The two ends are (immediately) arranged adjacent to a respective wall, so that further movement of the pressure vessel along the axial direction is at least restricted.

In particular, a loosening of the pressure container and the development of noises due to a movement of the pressure container relative to the beverage container can be prevented in this way.

In particular, the pressure vessel has at least partially (preferably completely) a cylindrical shape along the axial direction (between the first end and the second end), the diameter of the cylindrical shape being at most 20 millimeters, preferably at most 15 millimeters, particularly preferably at most 13 millimeters . In particular, the diameter is at least 5 millimeters, preferably at least 10 millimeters.

In particular, the pressure vessel has a wall thickness of at most 0.4 millimeters, preferably at most 0.3 millimeters, particularly preferably at most 0.25 millimeters.

The material used for the pressure vessel includes in particular a plastic, in particular PP (polypropylene). In particular, the pressure vessel is made of a different material than the housing.

In particular, the pressure container is made from a (cylindrical) tube (e.g. in the manner of a straw or a drinking straw), which in the initial state has, in particular, ends that are open on both sides. To produce the pressure vessel, the tube is cut to the required length and the ends of the cut tube are then or simultaneously closed. Finally, the at least one opening is formed.

In particular, the opening is pierced, ie stung, e.g. B. with a needle. To form an opening with a diameter of 0.1 millimeter z. B. a needle with a diameter of 0.14 millimeters can be used. The smaller diameter of the opening results from the partially elastic deformation of the container material during the lancing process.

The piercing of the openings can be carried out in a reproducible manner, in particular even with the required large quantities.

Compared to the known containers produced by injection molding, the openings of which are then formed by stamping processes, smaller openings can be produced reproducibly by means of piercing.

In particular, the pressure vessel with the third volume is arranged directly adjacent to the wall area.

The pressure vessel can only be fixed in one position in the first volume with a non-positive fit. In particular, no adhesive is used to attach the container to the beverage container. A food-grade adhesive, which also represents a cost factor in the manufacture of the beverage container, therefore does not have to be used.

Alternatively, the pressure container can also be connected to a wall (in particular to the wall area) of the beverage container in a materially bonded manner by using an adhesive.

Alternatively, the pressure vessel can be connected to a wall (particularly to the wall area) of the beverage container by using an adhesive, the pressure vessel additionally being e.g. B. by extending into the core bevels of the beverage container, is fixed in position at least in relation to a radial direction or is even non-positively fixed (e.g. as a result of at least elastic deformation or by a holding element) in its position.

The pressure container is preferably fixed in position in the first volume by means of an elastically deformable holding element. The holding element, e.g. B. a film strip is connected to the pressure vessel before the arrangement in the beverage container with the pressure vessel (z. B. via ultrasonic welding, gluing, integral molding o. Ä.). The holding element is introduced into the beverage container in particular in a deformed state, in which case it is preferably elastically deformed automatically there. In particular, the holding element rests against a wall, preferably the wall area, of the beverage container and fixes the pressurized container by means of further prestressing of the holding element. In particular, the prestress causes the non-positive connection of the holding element to the beverage container.

• Bereitstellen des Gehäuses ohne Deckel;
• Bereitstellen des Druckbehälters mit Öffnung, ggf. mit Haltelement;
• Anordnen des Druckbehälters in dem Gehäuse; ggf. über das Halteelement oder z. B. durch Verwendung eines Klebers;
• Füllen des Gehäuses mit der Flüssigkeit (zweites Volumen);
• Füllen des Gehäuses (ausgehend von zweitem Volumen insbesondere bis höchstens zum ersten Volumen) z. B. mit inertem Gas (ggf. zumindest teilweise verflüssigt);
• (gasdichtes) Verschließen des Gehäuses mit dem Deckel und bilden des Getränkebehälters;
• Umdrehen des Getränkebehälters, so dass der Boden nach oben weist (relativ zur Richtung der Schwerkraft) und so dass die mindestens eine Öffnung oberhalb des Füllstandes des ersten Volumens mit der Flüssigkeit angeordnet ist.
• Füllen des Druckbehälters über die Öffnung mit dem inerten Gas, dass durch Erwärmen im geschlossenen Getränkebehälter expandiert.
• Bereitstellen des Getränkebehälters in einem Ausgangszustand.

The filling of the beverage container and the pressure vessel can be carried out in a known manner, e.g. B. be carried out as follows:

• providing the housing without a cover;
• Providing the pressure vessel with an opening, optionally with a holding element;
• placing the pressure vessel in the housing; possibly via the holding element or z. B. by using an adhesive;
• filling the housing with the liquid (second volume);
• Filling the housing (starting from the second volume in particular up to a maximum of the first volume) z. B. with inert gas (possibly at least partially liquefied);
• (Gas-tight) sealing of the housing with the lid and forming the beverage container;
• Inverting the beverage container so that the bottom is facing up (relative to the direction of gravity) and so that the at least one opening is above the level of the first volume with the liquid.
• Filling the pressure vessel via the opening with the inert gas that expands when heated in the closed beverage container.
• Providing the beverage container in an initial state.

In particular, the pressure vessel has at least one opening that has a diameter of less than 0.2 millimeters.

In particular, the pressure container additionally has an elastically deformable holding element that extends outside the third volume and has a shape that enables the holding element to be arranged on a wall of the beverage container provided for the pressure container under pretension.

The statements on the beverage container apply equally to the pressure container and vice versa.

As a precaution, it should be noted that the numerals used here ("first", "second", "third",...) primarily (only) serve to distinguish between several similar objects, sizes or processes, i.e. in particular no dependency and/or sequence of these objects, sizes or processes to each other. Should a dependency and/or order be required be, this is explicitly stated here or it is obvious to the person skilled in the art when studying the embodiment specifically described.

Fig. 1:

einen Getränkebehälter ohne Deckel, einen Druckbehälter und ein Halteelement, jeweils in einer perspektivischen Ansicht;

Fig. 2:

ein Röhrchen zur Herstellung eines Druckbehälters in einer perspektivischen Ansicht;

Fig. 3:

einen Druckbehälter mit einem Halteelement in einer perspektivischen Ansicht;

Fig. 4:

den Getränkebehälter nach Fig. 1 mit einem Druckbehälter nach Fig. 3 während der Montage, in einer perspektivischen Ansicht;

Fig. 5:

den Getränkebehälter nach Fig. 4 mit montiertem Druckbehälter, in einer perspektivischen Ansicht;

Fig. 6:

einen Getränkebehälter mit einem Druckbehälter ohne Halteelement, in einer perspektivischen Ansicht; und

Fig. 7:

einen Getränkebehälter in einem Ausgangszustand in einer Seitenansicht.

The invention and the technical environment are explained in more detail below with reference to the figures. It should be pointed out that the invention should not be limited by the exemplary embodiments shown. In particular, unless explicitly stated otherwise, it is also possible to extract partial aspects of the facts explained in the figures and to combine them with other components and findings from the present description and/or figures. The same reference symbols designate the same objects, so that explanations from other figures can be used as a supplement if necessary. They show schematically:

Figure 1:

a beverage container without a lid, a pressure container and a holding element, each in a perspective view;

Figure 2:

a tube for producing a pressure vessel in a perspective view;

Figure 3:

a pressure vessel with a holding element in a perspective view;

Figure 4:

the beverage container 1 with a pressure vessel 3 during assembly, in a perspective view;

Figure 5:

the beverage container 4 with mounted pressure vessel, in a perspective view;

Figure 6:

a beverage container with a pressure container without a holding element, in a perspective view; and

Figure 7:

a beverage container in an initial state in a side view.

1 shows a beverage container 1 without a lid 5, a pressure container 10 and a holding element 29, each in a perspective view.

The beverage container 1 here comprises a housing 3 with a base 4 and a base 4 with a lid 5 (see FIG 7 ) connecting cylindrical wall area 6. The beverage container 1 has a first volume 7 which is partially filled with a second volume 8 of a liquid 9 .

The beverage container 1 extends from the base 4 to the lid 5 along an axial direction 16. The axial direction 16 runs parallel to the cylindrical wall area 6. The beverage container 1 is essentially cylindrical and has (of structures, e.g. in the lid, e.g. for opening/closing the first volume 7 apart) has an axis of rotation or axis of symmetry which extends parallel to the axial direction 16 .

The pressure vessel 10 extends from a first end 18 along the axial direction 16 to a second end 19 over a length 20. The pressure vessel 10 has a (round) opening 12 which has a diameter of less than 0.2 millimeters.

The pressure vessel 10 has at least partially a cylindrical shape 27 along the axial direction 16 between the first end 18 and the second end 19, with a diameter of the cylindrical shape 27 being at most 20 millimeters.

In addition, an elastically deformable holding element 29 is provided, which extends outside of the third volume 11 of the pressure vessel 10 and has a shape that allows the holding element 29 to be arranged on a wall 25 of the provided for the pressure vessel 10 beverage container 1 allows under a bias.

2 shows a tube for the production of a pressure vessel 10 in a perspective view. The pressure vessel 10 can be made from the cylindrical tube (e.g. in the manner of a straw or a drinking straw), which in the initial state has open ends on both sides. To produce the pressure vessel 10, the tube is cut to the required length and then or simultaneously the ends of the cut tube are closed. Finally, or before cutting to length, the opening 12 is formed.

3 shows a pressure vessel 10 with a holding element 29 in a perspective view. The holding element 29, z. B. a film strip is connected to the pressure vessel 10 before the arrangement in the beverage container 1 (z. B. via ultrasonic welding, gluing, one-piece molding o. Ä.). The holding element 29 is introduced into the beverage container 1 in the illustrated elastically deformed state, in which case it preferably automatically deforms elastically there.

4 shows the beverage container 1 1 with a pressure vessel 10 after 3 during assembly, in a perspective view. The holding element 29 is introduced into the beverage container 1 in the illustrated elastically deformed state, in which case it preferably automatically deforms elastically there (see FIG figure 5 ).

figure 5 shows the beverage container 1 4 with mounted pressure vessel 10, in a perspective view. The retaining element 29 rests against a wall 25, here the wall area 6, of the beverage container 1 and fixes the pressure container 10 by means of a further pretensioning of the retaining element 29. The pretension causes the non-positive connection of the retaining element 29 to the beverage container 1. The pressure container 10 is fixed in position 28 in first volume 7 via elastically deformable holding element 29 .

6 shows a beverage container 1 with a pressure container 10 without holding element 29, in a perspective view. The pressure vessel 10 is fixed here on the wall area 6 in the layer 28 by means of an adhesive 33 .

7 shows a beverage container 1 in an initial state 2 in a side view. In the initial state 2 , the beverage container 1 has a sealed housing 3 with a base 4 , a cover 5 and a (cylindrical) wall area 6 connecting the base 4 to the cover 5 . The beverage container 1 has a first volume 7 which is partially filled with a second volume 8 of a liquid 9 . The beverage container 1 further comprises a container 10 with a third volume 11 which is arranged in the first volume 7 . The pressure vessel 10 has an opening 12 . In the initial state 2, the beverage container 1 is under a first pressure which is greater than a second pressure of an environment 13. In the initial state 2, the pressure container 10 is at least partially filled with a gas 14 (possibly additionally partially with the liquid 9). When the beverage container 1 is opened and the pressure is equalized with the environment 13 , at least the gas 14 (possibly also the liquid 9 ) escapes from the third volume 11 via the opening 12 into the liquid 9 .

In an upright state (here the beverage container 1 is shown standing on the lid 5) of the beverage container 1, the bottom 4 is at the bottom and the lid 5 is at the top in relation to the direction of gravity. The wall area 6 between base 4 and cover 5 extends along an axial direction 16 parallel to the direction of gravity (when the beverage container 1 is upright) and in a circumferential direction 31 around the full circumference of base 4 and cover 5.

A height 15 extends along the axial direction 16, starting from a lowest point 23 (in particular, as shown, arranged in a sloping core of the beverage container 1) of the first volume 7 in the area of the bottom 4 to a highest point 30 (in particular in a sloping core of the Beverage container 1 arranged) in the area of the cover 5. The distance between the lowest point 23 and the highest point 30, measured along the axial direction 16, is referred to as the greatest height 17. The opening 12 is arranged at an altitude of the height 15 (ie at a certain value of the height).

The third volume 11 of the pressure container 10 extends in the illustrated upright beverage container 1 (upside down) into a lower area 24 adjacent to the bottom 4 , the lower area 24 being above a fill level 22 of the liquid 9 .

The third volume 11 of the pressure vessel 10 extends into a lower region 24 adjacent to the bottom 4, so that one opening 12 is located at most 5 millimeters along the axial direction 16 from the lowest point 23.

The presently proposed pressure vessel 10, which extends along the height 15, can be arranged off-centre to the bottom 4 or to the first volume 7 due to its smaller extension in a radial direction 32. The pressure container 10 can thus be arranged directly adjacent to the wall area 6 and can extend into the (preferably both) core slopes of the beverage container 1 (the deepest edge of the beverage container 1, which as shown extends around the curved bottom 4; the same can be done at the highest edge of the Be beverage container 1 formed, so around the lid 5, or to the - extend connection between the lid 5 and wall portion 6 around) inside - annular here.

As a result of the arrangement of the opening 12 at the small distance from the lowest point 23 , a larger partial volume of the second volume 8 can be excited by the outflow of at least the gas 14 from the pressure vessel 10 .

The pressure vessel 10 is arranged with the third volume 11 directly adjacent to the wall area 6 . The first end 18 and the second end 19 of the pressure container 10 are each directly adjacent to a wall 25 (e.g. the bottom 4, the lid 5 or the wall area 6) of the beverage container 1 arranged so that in relation to the axial direction 16 in each case a stop 26 is formed between the end 18, 19 and the wall 25. The pressure vessel 10 is thus arranged relative to the wall 25 in such a way that a further displacement of the pressure vessel 10 in the axial direction 16 forces at least a displacement of the end 18, 19 of the pressure vessel 10 contacting the wall 25 in the radial direction 32 or in the circumferential direction 31.

The pressure vessel 10 can thus be arranged fixed in its position 28 in the core bevels, at least with respect to the radial direction 32 .

• Bereitstellen des Gehäuses 3 ohne Deckel 4 (siehe Fig. 1, links);
• Bereitstellen des Druckbehälters 10 mit Öffnung 12, ggf. mit Haltelement 29 (siehe Fig. 3);
• Anordnen des Druckbehälters 10 in dem Gehäuse 3; ggf. über das Halteelement 29 (siehe Fig. 4 und 5) oder z. B. durch Verwendung eines Klebers 33 (siehe Fig. 6);
• Füllen des Gehäuses 3 mit der Flüssigkeit 9 (zweites Volumen 8);
• Füllen des Gehäuses 3 (ausgehend von zweitem Volumen 8 bis höchstens zum ersten Volumen 7) z. B. mit inertem Gas 14 (ggf. zumindest teilweise verflüssigt);
• (gasdichtes) Verschließen des Gehäuses 3 mit dem Deckel 5 und ausbilden des Getränkebehälters 1;
• Umdrehen des Getränkebehälters 1, so dass der Boden 4 nach oben weist (relativ zur Richtung der Schwerkraft) und so dass die Öffnung 12 oberhalb des Füllstandes 22 des ersten Volumens 7 mit der Flüssigkeit 9 angeordnet ist (siehe Fig. 7);
• Füllen des Druckbehälters 10 über die Öffnung 12 mit dem inerten Gas 14, dass durch Erwärmen im geschlossenen Getränkebehälter 1 expandiert (siehe Fig. 7);
• Bereitstellen des Getränkebehälters 1 in einem Ausgangszustand 2 (siehe Fig. 7).

The filling of the beverage container 1 and the pressure vessel 10 can be carried out in a known manner, e.g. B. be carried out as follows:

• Providing the housing 3 without cover 4 (see 1 , Left);
• Providing the pressure vessel 10 with opening 12, if necessary with holding element 29 (see 3 );
• Placing the pressure vessel 10 in the housing 3; possibly via the holding element 29 (see Figures 4 and 5 ) or e.g. B. by using an adhesive 33 (see 6 );
• filling the housing 3 with the liquid 9 (second volume 8);
• Filling the housing 3 (starting from the second volume 8 to a maximum of the first volume 7) z. B. with inert gas 14 (possibly at least partially liquefied);
• (Gas-tight) sealing of the housing 3 with the lid 5 and forming the beverage container 1;
• Turning the beverage container 1 over so that the base 4 faces upwards (relative to the direction of gravity) and so that the opening 12 is arranged above the level 22 of the first volume 7 with the liquid 9 (see FIG Figure 7 );
• Filling of the pressure container 10 via the opening 12 with the inert gas 14 that expands by heating in the closed beverage container 1 (see Figure 7 );
• Providing the beverage container 1 in an initial state 2 (see Figure 7 ).

Reference List

1

beverage container

2

initial state

3

Housing

4

Floor

5

Lid

6

wall area

7

first volume

8th

second volume

9

liquid

10

pressure vessel

11

third volume

12

opening

13

Vicinity

14

gas

15

Height

16

axial direction

17

greatest height

18

first end

19

second end

20

length

21

upper area

22

level

23

deepest point

24

lower area

25

wall

26

attack

27

shape

28

Position

29

holding element

30

the highest point

31

circumferential direction

32

radial direction

33

Glue

Claims (14)

1. Beverage container (1), at least comprising a housing (3) having a bottom (4), a lid (5) and a wall region (6) connecting the bottom (4) to the lid (5); wherein the beverage container (1) has a first volume (7) which can be partially filled with a liquid (9); wherein the beverage container (1) further comprises a pressure container (10) having a third volume (11), said pressure container being arranged in the first volume (7); wherein the first volume (7) has a largest height (17) between the bottom (4) and the lid (5) along an axial direction (16); wherein the container (10) has, between a first end (18) and a second end (19), a length (20) along the axial direction (16), wherein the first end (18) is arranged adjacent to the bottom (4) and the second end (19) adjacent to the lid (5), such that a further movement of the pressure container (10) along the axial direction (16) is at least restricted; characterized in that the pressure container (10) is arranged adjacent to the wall region (6).
2. Beverage container (1) according to claim 1, wherein the pressure container (10) has at least one opening (12) which connects the first volume (7) and third volume (11) and which has a diameter of less than 0.2 millimetre.
3. Beverage container (1) according one of the precedings claims, wherein the container (10) has a plurality of openings (12) and all the openings (12) have a diameter of less than 0.2 millimetre.
4. Beverage container (1) according to claim 3, wherein, with a beverage container (1) standing upright, at least two of the plurality of openings (12) are arranged at mutually different height positions of a height (15).
5. Beverage container (1) according to either of the preceding claims 2, 3 and 4, wherein, with a beverage container (1) standing upright, at least two of the plurality of openings (12) are arranged at an identical height position of a height (15).
6. Beverage container (1) according to one of the preceding claims, wherein, with a beverage container (1) standing upright, the third volume (11) of the pressure container (10) extends up and into an upper region (21) adjacent to the lid (5) that is situated above a predetermined filling level (22) of the liquid (9).
7. Beverage container (1) according to one of the preceding claims, wherein, with a beverage container (1) standing upright, the first volume (7) has at least one lowest point (23); wherein the third volume (11) of the pressure container (10) extends down and into a lower region (24) adjacent to the bottom (4) such that the at least one opening (12) is arranged at most 5 millimetres away from the lowest point (23).
8. Beverage container (1) according to one of the preceding claims, wherein the bottom (4), the lid (5) and the wall region (6) form a wall (25) of the beverage container (1); wherein the pressure container (10) is arranged adjacent to the wall (25) of the beverage container (1) at least with the first end (18) or with the second end (19) such that, at least with respect to an axial direction (16), an abutment (26) is formed between the end (18, 19) and the wall (25).
9. Beverage container (1) according to one of the preceding claims, wherein the pressure container (10) at least partially has a cylindrical shape (27) along the axial direction (16), wherein a diameter of the cylindrical shape (27) is at most 20 millimetres.
10. Beverage container (1) according to one of the preceding claims, wherein the pressure container (10) has a wall thickness of at most 0.4 millimetre.
11. Beverage container (1) according to one of the preceding claims, wherein the pressure container (10) with the third volume (11) is arranged directly adjacent to the wall region (6).
12. Beverage container (1) according to one of the preceding claims, wherein the pressure container (10) is fixed in the first volume (7) exclusively in a force-fitting manner.
13. Beverage container (1) according to claim 12, wherein the pressure container (10) is fixed in the first volume (7) in the position (28) by way of an elastically deformable retaining element (29).
14. Beverage container (10) according to claim 2, wherein the pressure container (10) additionally has an elastically deformable retaining element (29) which extends outside of the third volume (11) and which has a configuration which allows the retaining element (29) to be arranged on a wall (25) of the beverage container (1) provided for the container (10) under pretensioning.

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