EP3982031B1 - Gas container - Google Patents

Description

FIELD OF THE INVENTION

The present invention relates to a gas container with an inner volume for receiving gas, comprising a base body with a base body head, the base body forming the inner volume at least in sections and a substance capsule which contains a substance being arranged in the base body at least in the area of the base body head. furthermore, the base body head and the material capsule are closed by means of a cap, the material capsule having a flow opening arranged opposite the cap, which is closed by means of a closure in order to ensure separation of the material from the gas.

STATE OF THE ART

Gas containers filled with gas can be connected in a gas-tight manner to a device, for example a soda siphon or a pressure regulator, in order to ensure an appropriate gas supply to the device.

It is known to produce carbonated drinks, in particular soda, for consumption using a soda siphon and a gas container containing carbon dioxide, the water in the siphon being enriched with the carbon dioxide (CO2) from the gas container, thereby producing soda water, which has a refreshing and invigorating effect for the person user has. The soda is then often mixed with a fruit syrup or drink concentrate, an effervescent tablet or alcoholic drinks mixed to a desired taste and consumed in this prepared state, for example as an isotonic drink.

In order to avoid any additional expenses in the preparation of the preferred drink, the discloses DE 34 22 734 C2 a gas container in which the gas contained therein is already enriched with dissolved aromatic substances. However, such gas containers have the disadvantage that the durability and quality of the gas container or the gas capsule is severely affected by the aromatic substances, since the dissolved aromatic substances cause corrosion in the gas container on the wall and on a cap that closes the gas container and deposits occur.

In contrast, the reveals US 2,322,183 a gas container filled with gas and closed with a cap, which comprises a separate thin-walled capsule arranged at the opening area and filled with syrup, flavorings or aromatics. In detail, the capsule has its own flow opening for the gas opposite the opening of the gas container, which is closed by means of a closure in the form of a ball valve, with a ball closing the opening by means of a spring. When the gas container is opened by piercing the cap, the pressure in the capsule is reduced. As a result, due to the higher pressure of the gas in the gas container, which pressure acts against the ball, the spring force is overcome and the gas flows from the gas container into the soda siphon after flowing through the flow opening and mixing with the aromatic substances. However, with this gas container there is also a certain amount of contamination, as the aromatic substances cause corrosion of the spring and possibly the ball. Furthermore, there are many work steps involved in the production of such gas containers Individual parts incur high manufacturing costs because the flow opening of the thin-walled capsule is first closed with the ball, then filled with the flavoring agent, the spring is inserted and finally closed with the cap, which also closes the gas container. There is also the problem that due to the ball valve-like closure of the capsule, the gas pressure has to be high enough to overcome the spring force, which means that in the end some of the gas always remains in the gas container, so that less carbon dioxide can be introduced into the drink and the refreshing and invigorating effect for the user is reduced or a larger amount of gas is required, which in turn incurs higher production costs.

OBJECT OF THE INVENTION

It is therefore an object of the invention to create a gas container through which a desired fluid, preferably in the form of cream or a flavored drink, can be prepared with a high quality without any additional expenditure or additional means, such as a syrup or an effervescent tablet is, with the gas container having a long service life.

PRESENTATION OF THE INVENTION

This task is achieved by a gas container with an inner volume for receiving gas, comprising a base body with a base body head, the base body forming the inner volume at least in sections and a substance capsule which contains a substance being arranged in the base body at least in the area of the base body head. furthermore the base body head and the fabric capsule are closed by means of at least one cap, the material capsule having a flow opening arranged opposite the at least one cap, which is closed by means of a closure in order to ensure a separation of the material from the gas, solved according to the invention in that the closure is designed as a membrane or as a flow closure in such a way is designed that when the at least one cap is pierced, the closure can be irreversibly converted from a closed state to an open state by a gas pressure within the gas container in order to enable the gas to be completely emptied from the gas container.

The result of this is that increased gas mixing is ensured in the fluid, preferably a cream or a drink, prepared with a device, for example a siphon, since the closure of the material capsule of the gas container according to the invention, which contains a substance or possibly a mixture of substances, preferably in the form of a flavoring, syrup or effervescent, includes, after piercing the at least one cap, can be irreversibly converted into the open, ie permanently or permanently open, state, whereby a complete escape of the gas arranged in the gas container through the material capsule from the Gas container in the device is ensured. This is shown, for example, by an increased fizzing effect in a drink or by an increased firmness of a cream prepared with the gas container according to the invention. In addition, the additional effect of complete emptying of the substance arranged in the substance capsule is achieved. Also, no corrosion can occur due to the elimination of any additional components. It should be noted that the substance capsule is at least almost completely filled with the substance in liquid or viscous or solid effervescent form closed state of the gas container is filled. Furthermore, it should be noted that the term “piercing” in the context of the invention also means piercing, breaking open or similar.

It is conceivable that a cap is provided for closing the gas container and for closing the material capsule, with both caps being pierced when the gas container is pierced.

To simplify production, one and the same cap can be provided for closing the gas container and at the same time for closing the material capsule on the side opposite the closure, the cap with the material capsule arranged on it being first inserted into the gas container through an opening in the base body head. A seal can then be inserted which completely surrounds the cap, and the gas container is then closed by means of a flanging, whereby gas is usually introduced via the already inserted cap with seal. It is also conceivable that the seal is placed on the cap in advance. The remaining area of the cap that is visible from the outside forms the gas container opening at least in sections.

It is also conceivable that the entire material capsule is completely prefabricated in a previous production step, with a film or the like being used to close the material capsule. can serve.

In detail, the membrane is designed in such a way that when the cap is pierced, it can be torn due to the higher pressure within the gas container compared to an external pressure outside the gas container. In comparison, it is It is conceivable that the flow closure is designed to be displaceable.

By piercing the cap of the gas container, there is an overpressure within the gas container or an imbalance in the pressure inside the gas container compared to an external pressure, which causes the membrane to tear or the flow closure to be displaced. As long as the gas container is closed, there is a counter pressure in the capsule that corresponds to the gas pressure in the gas container and prevents the membrane from tearing open or the flow closure from moving.

The gas container is usually made of metal, with the material capsule preferably made of the same metal or made of plastic to avoid any corrosion. Accordingly, the membrane is preferably designed as a metal or plastic membrane.

In a preferred embodiment of the gas container according to the invention it is provided that the membrane is made of a metal, preferably of stainless steel or of aluminum or of an aluminum alloy, and has a diameter of 3.0 mm to 4.0 mm, in particular 3.6 mm , depending on whether the membrane is made of stainless steel or aluminum, different wall thicknesses of the membrane are suitable.

If stainless steel is used, the membrane preferably has a wall thickness in the range from 0.005 mm to 0.02 mm, in particular 0.01 mm, whereby the term stainless steel is understood to mean alloyed or unalloyed steels with a particular degree of purity.

If aluminum or an aluminum alloy is used, the membrane preferably has a wall thickness in the range from 0.01 mm to 0.03 mm, in particular 0.015 mm.

However, it is also conceivable that the membrane consists of a plastic, in particular if the material capsule and the gas container itself are made of a plastic. Therefore, in a preferred embodiment of the gas container according to the invention, it is provided that the membrane, and possibly also the gas container, is/are made of plastic, preferably polyethylene (PE) or polypropylene (PP), with the membrane having a diameter of 3 .0 mm to 4.0 mm, in particular 3.6 mm, has a wall thickness in the range of 0.035 mm to 0.065 mm, in particular 0.05 mm.

It is particularly preferred in the gas container according to the invention that the membrane has a weakening zone, which is preferably cross-shaped or star-shaped or at least partially circular.

The weakened zone is preferably formed by embossing and/or milling and/or notches and/or laser ablation. These are all methods with which an easily reproducible opening force and thus the pressure for opening the membrane or bursting of the membrane can be precisely specified, for example via the number and depth of the different areas of the weakened zone. A combination of different weakening zones is also conceivable, for example a completely circular weakening zone could be easily combined with a cross-shaped weakening zone, possibly also with different wall thicknesses.

In detail, the membranes, which preferably comprise aluminum or an aluminum alloy or stainless steel, are attached to the associated material container by means of laser welding on its flat or end face, with attachment by means of laser welding on the outer surface of the material container also being conceivable. If plastics are used, the material capsule and the membrane should preferably be made in one piece.

By piercing the cap of the gas container, a pressure difference is created, which can destroy the membrane. The aforementioned position of the weakening zone and the membrane relative to one another can have a particularly positive effect on the effectiveness of the pressure distribution and, as a result, on the destruction of the membrane. In the case of the gas container disclosed here, the arrangement of the weakening zone on the membrane creates an advantageous pressure distribution, which ensures complete emptying of the substance capsule and thus introduction of, for example, effervescent or syrupy or liquid substance or flavoring substance into the device, which in the case An increased or intense taste can be achieved when preparing a drink.

These weakening zones, which are, for example, embossings or notches or engravings made using a laser, are less deep than the material thickness of the membrane and do not break through it, so that no escape of the substance from the material capsule is possible. Therefore, in the gas container according to the invention it is particularly preferred that the membrane preferably has a wall thickness of 1/3 to 2/3, preferably 1/2, of its remaining wall thickness in the area of the weakening zone.

In a preferred embodiment of the gas container according to the invention it is provided that the membrane is curved towards the cap in the closed state. This curvature, which is concave, i.e. in the direction of the cap of the gas container or base body head, serves to achieve or support a targeted central application of pressure on the membrane, which supports the membrane from tearing open or bursting.

In a preferred embodiment of the gas container according to the invention, it is provided that the material capsule additionally comprises a piercing element, which is preferably at least partially cross-shaped, the piercing element being formed within the material capsule on the longitudinal side, preferably centrally along the longitudinal axis, from a region of the cap to the membrane is. This piercing element is therefore used to pierce the membrane while the cap is being pierced.

When a gas container holder in which the gas container is arranged is screwed on, a piercing unit usually acts on the cap in such a way that it is pierced. Due to the longitudinal position, preferably also centrally along the longitudinal axis, of the piercing element, the piercing unit presses on the membrane when piercing the cap, whereby it is also punctured. In other words, with the help of the piercing element, force is transmitted from the cap to the membrane, the piercing element preferably being designed in a cross shape such that, in particular, outer, side surfaces of the piercing element rest on the inner lateral surface of the material capsule. With the help of such a cross guide, it is possible for the piercing element to be held in position, in any The fabric is arranged in the spaces formed by the cross guide.

In a preferred embodiment of the gas container according to the invention, it is provided that the flow closure is displaceable in such a way that when the cap is pierced, the flow closure can be displaced in the direction of the cap by the gas pressure applied on the side of a flow opening in order to prevent the gas mixed with the substance from flowing out via the material capsule from the gas container. In other words - as with a commercially available syringe - a displacement of the flow closure, which acts as a kind of piston, is achieved by the pressure described above in the direction of the cap of the gas container, whereby the gas not only presses on the flow closure, but within it The area of the material capsule also flows laterally, so that the gas mixed with the material enters the device. In addition, the displacement of the flow closure ensures that the substance is completely introduced from the substance capsule into the device.

Particularly preferably, in the gas container according to the invention, it is provided that the material capsule in the area of the flow opening is smaller than the flow closure in an uncompressed state and larger in an adjoining area, with the flow closure in the closed state being inserted in the area of the flow opening in a compressed state , preferably pressed in, is that after the cap has been pierced by the gas pressure on a side of the flow closure facing away from the cap, the flow closure is displaced in the direction of the cap Establishment of the open state is guaranteed. The fact that the material capsule in the area of the flow opening is preferably significantly smaller - that is, the flow opening has a smaller cross section or a smaller diameter - ensures that the flow closure is pressed in, with the flow closure being created when the cap is pierced by the resulting pressure difference is displaced towards the cap, expands and assumes an uncompressed state. In other words, the press-in of the flow closure is designed in such a way that the pressure applied on the flow opening side overcomes the retaining force of the flow closure and shifts it in the direction of the cap or the base body head. For this purpose, depending on the press-in force of the flow closure of approx. 10N to 50N, preferably 30N, a force of approx. 130N to 170N, preferably 150N, is required for the above diameter of the material capsule.

In a preferred embodiment of the gas container according to the invention it is provided that the material capsule is tubular with an inner diameter to form a cavity for receiving the material. Such a design enables simpler and therefore more cost-effective production, for example by means of a deep-drawing or extrusion process, which also ensures a simplified introduction of the material capsule into the gas container.

In a further embodiment of the gas container according to the invention it is provided that the flow closure is preferably cylindrical or disk-shaped, with preferably a diameter of the flow closure in one uncompressed state is larger than an inner diameter of the material capsule in the area of the flow opening.

Here, the flow closure also ensures a lateral flow around the flow closure in an area of the material capsule between the flow opening and the cap while the material is being introduced into the device. For this purpose, the diameter of the flow closure can be smaller than the inner diameter of the material capsule in the area mentioned. Alternatively, the diameter of the flow closure can also be greater than or equal to the inner diameter of the material capsule in the said area, although a contact pressure of the flow closure against the inner wall of the material capsule in the said area is so low that the gas can flow around the flow closure in this case too.

On the other hand, that section with a, preferably significantly, smaller diameter of the material capsule in the area of the flow opening ensures that the flow closure can be pressed in securely and only releases the opening area by means of increased pressure or force in order to ensure a gas flow.

It is particularly preferred in the gas container according to the invention that the flow closure is formed in one piece from a cylindrical or disk-shaped element, preferably made of rubber. In other words, in this embodiment the flow closure is designed as a simple rubber-like plug.

In an alternative embodiment of the gas container according to the invention it is provided that Flow closure is formed in two parts from a seal, preferably an annular seal, and a sealing element. The sealing element is inserted or glued into the seal in a gas-tight manner. In detail, the seal, which in the case of a tubular design of the material capsule is preferably designed as a ring seal, serves for gas-tight closure on the inner wall of the material capsule in the area of the flow opening or, in the case of a tubular design of the material capsule, on the inner lateral surface in the area of the flow opening. In other words, the seal serves to close the flow opening in a gas-tight manner, whereby it lies against the inner wall of the material capsule in the area of the flow opening.

When the gas container according to the invention is used as intended, it is held in a working state in a gas container holder of a device for preparing a fluid and a fluidic connection of the gas container to the device is ensured by piercing the gas container by means of a piercing unit, the gas container being able to use the device for Discharge of the gas-enriched fluid is possible as long as a gas pressure prevailing in the gas container is sufficient to convert a check valve arranged in the head of the device into an open state and / or to keep it in the open state, the closure being closed by piercing the cap of the gas container Material capsule can be irreversibly converted from a closed state to an open state by the gas pressure in the gas container, whereby the gas can flow out through the material capsule and mixing of the gas with the material arranged in the material capsule is ensured.

In a further alternative embodiment of the invention, the material capsule has a length of 1/4 to 3/4, preferably 1/4, of the length of the gas container.

According to what has been said above, according to the invention a system for processing a liquid with gas is provided, the system comprising a gas container according to the invention and a device in which the liquid can be arranged, wherein in a working state of the device the gas container is held in a gas container holder and a fluidic connection of the gas container with the device is ensured by the cap of the gas container being pierced by means of a piercing unit in order to enable the device to be used to discharge the gas-enriched liquid, the closure of the material capsule being caused by the gas pressure in the gas container due to the piercing of the cap of the gas container Gas container is irreversibly transferred from the closed state to the open state and ensures that the gas flows out through the material capsule in order to enable the gas to be mixed with the material arranged in the material capsule.

BRIEF DESCRIPTION OF THE FIGURES

Fig. 1

eine Viertelschnittdarstellung einer ersten Ausführungsform eines erfindungsgemäßen Gasbehälters;

Fig. 2

eine Darstellung eines Systems umfassend die erste Ausführungsform des erfindungsgemäßen Gasbehälters und eine Vorrichtung;

Fig. 3

eine Schnittdarstellung eines Basiskörpers im Bereich einer Stoffkapsel einer zweiten Ausführungsform des erfindungsgemäßen Gasbehälters;

Fig. 4a

eine Draufsicht auf eine Membran mit kreuzförmiger Schwächungszone der Stoffkapsel der zweiten Ausführungsform des erfindungsgemäßen Gasbehälters;

Fig. 4b

eine Draufsicht auf eine Membran mit sternförmiger Schwächungszone der Stoffkapsel der zweiten Ausführungsform des erfindungsgemäßen Gasbehälters;

Fig. 4c

eine Draufsicht auf eine Membran mit zumindest teilweise kreisförmiger Schwächungszone der Stoffkapsel der zweiten Ausführungsform des erfindungsgemäßen Gasbehälters;

Fig. 5

eine Schnittdarstellung des Basiskörpers im Bereich der Stoffkapsel einer dritten Ausführungsform des erfindungsgemäßen Gasbehälters;

Fig. 6

eine Seitenansicht gemäß der in Fig. 5 eingezeichneten Richtung B auf eine zumindest teilweise kreisförmige Ausführungsform des Verschlusses der Stoffkapsel der dritten Ausführungsform des erfindungsgemäßen Gasbehälters aus Fig. 5;

Fig. 7

eine Schnittdarstellung des Basiskörpers im Bereich der Stoffkapsel einer vierten Ausführungsform des erfindungsgemäßen Gasbehälters;

Fig. 8

eine Schnittdarstellung der Stoffkapsel aus Fig. 7 gemäß der in Fig. 7 eingezeichneten Schnittlinie A-A;

Fig. 9

eine Schnittdarstellung des Basiskörpers im Bereich der Stoffkapsel einer fünften Ausführungsform des erfindungsgemäßen Gasbehälters;

Fig. 10

eine Schnittdarstellung des Basiskörpers im Bereich der Stoffkapsel der fünften Ausführungsform des erfindungsgemäßen Gasbehälters, wobei der Verschluss in einem offenen Zustand während der Verwendung dargestellt ist;

Fig. 11

eine Schnittdarstellung des Basiskörpers im Bereich der Stoffkapsel einer sechsten Ausführungsform des erfindungsgemäßen Gasbehälters.

The invention will now be explained in more detail using exemplary embodiments. The figures are exemplary and are intended to explain the idea of the invention, but in no way represent it in a restrictive or even conclusive manner. Further advantageous refinements, details and developments of the invention can also be seen from the figures. This shows:

Fig. 1

a quarter sectional view of a first embodiment of a gas container according to the invention;

Fig. 2

a representation of a system comprising the first embodiment of the gas container according to the invention and a device;

Fig. 3

a sectional view of a base body in the area of a material capsule of a second embodiment of the gas container according to the invention;

Fig. 4a

a top view of a membrane with a cross-shaped weakening zone of the material capsule of the second embodiment of the gas container according to the invention;

Fig. 4b

a top view of a membrane with a star-shaped weakening zone of the material capsule of the second embodiment of the gas container according to the invention;

Fig. 4c

a top view of a membrane with an at least partially circular weakening zone of the material capsule of the second embodiment of the gas container according to the invention;

Fig. 5

a sectional view of the base body in the area of the material capsule of a third embodiment of the gas container according to the invention;

Fig. 6

a side view according to in Fig. 5 Direction B shown on an at least partially circular embodiment of the closure of the material capsule of the third embodiment of the gas container according to the invention Fig. 5 ;

Fig. 7

a sectional view of the base body in the area of the material capsule of a fourth embodiment of the gas container according to the invention;

Fig. 8

a sectional view of the fabric capsule Fig. 7 according to the in Fig. 7 marked section line AA;

Fig. 9

a sectional view of the base body in the area of the material capsule of a fifth embodiment of the gas container according to the invention;

Fig. 10

a sectional view of the base body in the area of the material capsule of the fifth embodiment of the gas container according to the invention, the closure being shown in an open state during use;

Fig. 11

a sectional view of the base body in the area of the material capsule of a sixth embodiment of the gas container according to the invention.

WAYS OF CARRYING OUT THE INVENTION

Fig. 1 shows a quarter-sectional view of a first embodiment of a gas container 1 according to the invention with an inner volume for receiving gas 4, comprising a base body 2 with a base body head 3, the base body 2 forming the inner volume at least in sections and a material capsule 10 at least in the area of the base body head 3 is arranged in the base body 2, which contains a material 11, wherein further the base body head 3 and the material capsule 10 are closed by means of a cap 8, the material capsule 10 being one opposite the cap 8 arranged flow opening 14, which is closed by means of a closure 12, 15 to ensure a separation of the substance 11 from the gas 4.

To simplify production, the cap 8 for closing the gas container 1 and for closing the material capsule 10 is arranged on the side opposite the closure 12, 15, the cap 8 with the material capsule 10 arranged thereon first entering the gas container 1 through an opening in the base body head 3 is used. A seal 9 is then inserted, which completely surrounds the cap 8, and the gas container 1 is then closed by means of a flanging, gas being introduced usually via the already inserted cap 8 with seal 9. It is also conceivable that the seal 9 is already placed on the cap 8 in advance.

To carry out the flanging to close the gas container 1, a tool usually engages a closure surface 6 in the area of the base body head 3 and carries out a deformation by conical forming or by pressing together the end region of the base body head 3, the remaining area visible from the outside Cap 8 at least partially forms a gas container opening 7, into which a piercing unit 21 of a device 20 engages when used as intended.

Here, according to the invention, the closure 12, 15 is designed as a membrane 12 or as a flow closure 15 in such a way that when the cap 8 is pierced, the closure 12, 15 can be irreversibly converted from a closed state to an open state by a gas pressure within the gas container 1, in order to to enable complete emptying of the gas 4 from the gas container 1. In other words, the closure 12, 15 is designed such that at one Piercing the cap 8 by means of the piercing unit 21 of the device 20, which is, for example, a soda or cream siphon, the closure 12, 15 can be irreversibly converted into the open state by a higher pressure within the gas container 1, thereby allowing complete emptying of the gas 4 from the gas container 1 is ensured.

It should be noted that for this purpose the substance capsule 10 is at least almost completely filled with the substance 11 in liquid or viscous, gaseous or solid effervescent form in the closed state of the gas container 1.

This shows Fig. 2 a representation of a system comprising the first embodiment of the gas container 1 according to the invention and the device 20 for preparing a fluid, wherein in a working state of the device 20 the gas container 1 is in a gas container holder 22, which is supported by a gas container holder cover 23 for easier and better or safe handling, which is preferably made of rubber, is surrounded, is held. A fluid connection of the gas container 1 to the device 20 is ensured by piercing the gas container 1 using the piercing unit 21. Here, the gas container 1 enables the device 20 to be used for discharging the fluid enriched with gas 4, as long as a gas pressure prevailing in the gas container 1 is sufficient to convert a check valve arranged in the head 24 of the device 20 into an open state and/or in the open state maintain condition. By piercing the cap 8 of the gas container 1, the closure 12, 15 of the material capsule 10 is permanently opened by the gas pressure in the gas container 1, whereby the gas 4 can flow out through the material capsule 10 and the gas 4 is mixed with that in the Fabric capsule 10 arranged material 11 is guaranteed. This mixture is mixed in a bottle 25 of the device 20 with the fluid arranged in the bottle 25, for example in the form of water. The device 20 is actuated with the aid of an actuating element 26, which is usually designed in the form of a lever. When the actuating element 26 is actuated, a rotational movement takes place via an axis pin 27, whereby a valve arrangement within the head 24 known to those skilled in the art is actuated, the piercing unit 21 punctures the gas container 1 and the material 11, the gas 4 and the gas in the are mixed Fluid located in the bottle 25 takes place, so that the processed or prepared desired fluid can be discharged in liquid or possibly foam-like form through a discharge nozzle 28.

Here, according to the sectional view of the base body 2 in the area of the material capsule 10, a second embodiment of the gas container 1 according to the invention is in Fig. 3 the closure 12, 15 is designed as a membrane 12, the membrane 12 being designed in such a way that when the cap 8 is pierced by a pressure within the gas container 1 compared to an external pressure outside the gas container 1, it can be torn, so that the gas 4 inside the Material capsule 10 mixed with the material 11 and flows into the device 20, see in detail Fig. 2 .

Here is in Fig. 3 It can also be seen that the membrane 12 can be curved towards the cap 8 in the closed state, the curve serving to achieve or support a targeted central application of pressure on the membrane 12, which additionally supports the membrane 12 from tearing open or bursting.

If stainless steel is used for the membrane 12, it has a diameter of 3.0 mm to 4.0 mm, in particular 3.6 mm, preferably a wall thickness in the range of 0.005 mm to 0.02 mm, in particular 0. 01 mm, while when using aluminum or an aluminum alloy, with such diameter details, it preferably has a wall thickness in the range of 0.01 mm to 0.03 mm, in particular 0.015 mm.

It is also possible for the membrane 12 to be made of a plastic, preferably polyethylene (PE) or polypropylene (PP), and with a diameter of 3.0 mm to 4.0 mm, in particular 3.6 mm, has a wall thickness in the range from 0.035 mm to 0.065 mm, in particular 0.05 mm.

If the membrane 12 is made of plastic, it is also conceivable that the gas container 1 or the material capsule 10 is/are made of the same plastic.

In order to ensure easier or improved opening of the membrane 12, it points according to the top views in Fig. 4a, Fig. 4b and Fig. 4c , which each show the second embodiment of the gas container 1 according to the invention, a weakening zone 13a, 13b, 13c, which is preferably cross-shaped (weakening zone 13a) or star-shaped (weakening zone 13b) or at least partially circular (weakening zone 13c). Such a weakening zone 13a, 13b, 13c ensures a simpler or more targeted opening of the membrane 12, which also ensures improved mixing of the gas 4 with the substance 11 in the substance capsule 10.

In detail, the membrane 12 points for easier or targeted opening in the area of the weakening zone 13a, 13b, 13c have a wall thickness of 1/3 to 2/3, preferably 1/2, of their remaining wall thickness.

Fig. 5 shows a sectional view of the base body 2 in the area of the material capsule 10 of a third embodiment of the gas container 1 according to the invention, the material capsule 10 in this case having a flat membrane 12. Fig. 6 shows a side view according to in Fig. 5 direction B shown on the material capsule 10 in the state arranged in the gas container 1, the membrane 12 having a gem. Fig. 4c at least partially circular weakening zone 13c.

Fig. 7 shows a sectional view of the base body 2 in the area of the material capsule 10 of a fourth embodiment of the gas container 1 according to the invention, the material capsule 10 additionally comprising a piercing element 18, which is preferably cross-shaped, the piercing element 18 inside the material capsule 10 on the longitudinal side, preferably in the middle along the Longitudinal axis, from a region of the cap 8 to the membrane 12 is formed. In detail, the cross-shaped design of the piercing element 18 acts as a cross guide 19 according to. Fig. 8 , which is a sectional view of the fabric capsule 10 Fig. 7 according to the in Fig. 7 shown section line AA shows, in particular outer, side surfaces of the piercing element 18 forming the cross guide 19, which rest on the inner lateral surface of the material capsule 10 for positioning and guiding the piercing element 18, the material 11 being arranged in the spaces between the cross guide 19.

Fig. 9 shows a sectional view of the base body 2 in the area of the material capsule 10 of a fifth embodiment of the gas container 1 according to the invention, the closure 12, 15 in this case is designed as a flow closure 15. The flow closure 15 is displaceably arranged in the sectional view of the base body 2 in the area of the material capsule 10 of the fifth embodiment of the gas container 1 according to the invention in such a way that when the cap 8 is pierced by the piercing unit 21 of the device 20, the flow closure 15 passes through the on the side Gas pressure applied to a flow opening can be displaced in the direction of the cap 8 or is displaced by the gas pressure in the direction of the cap 8 in order to enable the gas 4 mixed with the substance 11 to flow out of the gas container 1 via the substance capsule 10, cf. Fig. 10 .

The sectional views show in Fig. 9 and Fig. 10 also that the material capsule 10 in the area of the flow opening 14 is designed to be significantly smaller (by means of a step) than the flow closure 15 in an uncompressed state and larger in an adjoining area, with the flow closure 15 in a compressed state in the area in the closed state The flow opening 14 is inserted, preferably pressed, in such a way that after the cap 8 has been pierced by the gas pressure on a side of the flow closure 15 facing away from the cap 8, a displacement of the flow closure 15 in the direction of the cap 8 to produce the open state is ensured.

For this purpose, the material capsule 10 is preferably tubular with an inner diameter y to form a cavity for receiving the material 11, the flow closure 15 preferably being designed to be cylindrical or disk-shaped to match, preferably a diameter x of the flow closure 15 in an uncompressed State is larger than the inner diameter y of the material capsule 10 in the area of the flow opening 14 and smaller than the inner diameter y in an area between the cap 8 and the area of the flow opening 14. This serves to ensure that the flow closure 15 is moved as evenly as possible.

However, it is also conceivable that the inner diameter y in the area between the cap 8 and the area of the flow opening 14 is not larger than the diameter x, so that (other than Fig. 10 ) the flow closure 15 rests against the inner surface of the material capsule 10 even when displaced by the gas pressure, with the gas 4 laterally forming the flow closure on the inner surface of the material capsule 10 due to the lower contact pressure (than in the closed state of the material capsule 10 or the gas container 1). 15 flows around. In the non-actuated state of the device 20 or the gas container 1, the flow closure 15 rests on a section of the material capsule 10 (in the area of the flow opening 14), which has an even smaller diameter according to. Fig. 9 has, whereby there is such a high contact pressure that the gas 4 cannot flow around the flow closure 15 laterally.

In a preferred embodiment, the flow closure 15 is made in one piece. Fig. 9 or Fig. 10 formed from a cylindrical or disk-shaped element, preferably made of rubber. The flow closure 15 can also be in two parts according to the sectional view in Fig. 11 , which shows the base body 2 in the area of the material capsule 10 of a sixth embodiment of the gas container 1 according to the invention, and can be formed from a seal 16, preferably an annular seal, and a sealing element 17. At In the two-part embodiment, it must be ensured that the seal 16 and the sealing element 17 themselves are adapted to one another or are designed to be gas-tight with one another. The sealing element 17 for the material capsule 10 is also designed in such a way that (gas) tightness is guaranteed.

The present invention thus discloses a system for processing a liquid with gas, the system comprising the gas container 1 according to the invention and the device 20 in which the liquid can be arranged, wherein in the working state of the device 20 the gas container 1 is held in the gas container holder 22 and a fluidic connection of the gas container 1 with the device 20 is ensured by the cap 8 of the gas container 1 being pierced by means of the piercing unit 21 in order to enable the device 20 to be used for discharging the liquid enriched with gas 4, due to the piercing of the cap 8 of the gas container 1 the closure 12, 15 of the material capsule 10 is irreversibly converted from the closed state to the open state by the gas pressure in the gas container 1 and ensures that the gas 4 flows out through the material capsule 10 in order to ensure that the gas 4 is mixed with that in the material capsule 10 arranged Soff 11 to enable.

REFERENCE SYMBOL LIST

1

gas tank

2

Base body

3

Base body head

4

gas

5

Coat

6

Closure surface

7

Gas container opening

8th

cap

9

poetry

10

Fabric capsule

11

solid, liquid or gaseous substance

12

Closure (membrane)

13a

cruciform weakening zone

13b

star-shaped weakening zone

13c

annular weakening zone

14

Flow opening

15

Closure (flow closure)

16

Ring seal

17

Sealing element

18

Piercing element

19

Cross guidance of the piercing element 18

20

contraption

21

Piercing unit

22

Gas container holder

23

Gas container holder cover

24

Head

25

Bottle

26

Actuator

27

Axle pin

28

discharge nozzle

x

Diameter of the flow closure 15

y

Inner diameter of the tubular material capsule 10

Claims (16)

1. Gas container (1) having an inner volume for holding gas (4), comprising a base body (2) with a base body head (3), wherein the base body (2) forms the inner volume at least in sections and wherein a substance capsule (10), which contains a substance (11), is arranged in the base body (2) at least in the region of the base body head (3), wherein furthermore the base body head (3) as well as the substance capsule (10) are closed by means of at least one cap (8), wherein the substance capsule (10) has a throughflow opening (14) arranged opposite the at least one cap (8), which is closed by means of a closure (12, 15) in order to ensure separation of the substance (11) from the gas (4), characterized in that the closure (12, 15) is designed as a membrane (12) or as a throughflow closure (15) in such a way that, when the at least one cap (8) is pierced, the closure (12, 15) can be irreversibly transferred from a closed state into an open state by a gas pressure inside the gas container (1), in order to allow complete emptying of the gas (4) from the gas container (1).
2. Gas container (1) according to claim 1, characterized in that the membrane (12) is formed from stainless steel and, with a diameter of 3.0 mm to 4.0 mm, in particular 3.6 mm, has a wall thickness in the range from 0.005 mm to 0.02 mm, in particular 0.01 mm.
3. Gas container (1) according to claim 1, characterized in that the membrane (12) is formed from aluminum or an aluminum alloy and, with a diameter of 3.0 mm to 4.0 mm, in particular 3.6 mm, has a wall thickness in the range from 0.01 mm to 0.03 mm, in particular 0.015 mm.
4. Gas container (1) according to claim 1, characterized in that the membrane (12) is formed from a plastic, preferably from polyethylene (PE) or polypropylene (PP), and, with a diameter of 3.0 mm to 4.0 mm, in particular 3.6 mm, has a wall thickness in the range from 0.035 mm to 0.065 mm, in particular 0.05 mm.
5. Gas container (1) according to claim 4, characterized in that the gas container (1) is made of plastic, preferably polyethylene (PE) or polypropylene (PP).
6. Gas container (1) according to one of claims 1 to 5, characterized in that the membrane (12) has a weakening zone (13a, 13b, 13c), which is preferably cross-shaped (13a) or star-shaped (13b) or at least partially circular (13c).
7. Gas container (1) according to claim 6, characterized in that the membrane (12) in the region of the weakening zone (13a, 13b, 13c) has a wall thickness of 1/3 to 2/3, preferably 1/2, of its remaining wall thickness.
8. Gas container (1) according to one of claims 1 to 7, characterized in that the membrane (12) is curved towards the cap (8) in the closed state.
9. Gas container (1) according to one of claims 1 to 8, characterized in that the substance capsule (10) additionally comprises a piercing element (18), which is preferably at least partially cross-shaped, wherein the piercing element (18) is formed within the substance capsule (10) longitudinally, preferably centrally along the longitudinal axis, from a region of the cap (8) to the membrane (12).
10. Gas container (1) according to claim 1, characterized in that the throughflow closure (15) is displaceable in such a way that, when the cap (8) is pierced, the throughflow closure (15) is displaceable in the direction of the cap (8) by the gas pressure applied on the side of a throughflow opening, in order to allow the gas (4) mixed with the substance (11) to flow out of the gas container (1) via the substance capsule (10).
11. Gas container (1) according to claim 10, characterized in that the substance capsule (10) in the region of the throughflow opening (14) is formed smaller than the throughflow closure (15) in an uncompressed state and larger in a region adjacent thereto, wherein in the closed state the throughflow closure (15) in a compressed state is inserted, preferably pressed, into the region of the throughflow opening (14) in such a way that, after the cap (8) has been pierced, displacement of the throughflow closure (15) in the direction of the cap (8) is ensured by the gas pressure on a side of the throughflow closure (15) facing away from the cap (8) in order to produce the open state.
12. Gas container (1) according to one of claims 1 to 11, characterized in that the substance capsule (10) is tubular with an inner diameter (y) for forming a cavity for accommodating the substance (11).
13. Gas container (1) according to one of claims 10 to 12 and claim 10, characterized in that the throughflow closure (15) is designed in the form of a cylinder or disk, wherein preferably a diameter (x) of the throughflow closure (15) in an uncompressed state is larger than an inner diameter (y) of the substance capsule (10) in the region of the throughflow opening (14).
14. Gas container (1) according to one of claims 10 to 13, characterized in that the throughflow closure (15) is formed in one piece from a cylindrical or disk-shaped element, preferably from rubber.
15. Gas container (1) according to one of claims 10 to 13, characterized in that the throughflow closure (15) is formed in two parts from a seal (16), preferably an annular seal, and a sealing element (17).
16. System for treating a liquid with gas (4), the system comprising a gas container (1) according to one of claims 1 to 15 and a device (20) in which the liquid can be arranged,

    wherein in a working state of the device (20) the gas container (1) is held in a gas container holder (22) and a fluidic connection of the gas container (1) with the device (20) is ensured by piercing the cap (8) of the gas container (1) by means of a piercing unit (21) in order to enable use of the device (20) for discharging the liquid enriched with gas (4),

    wherein due to the piercing of the cap (8) of the gas container (1) the closure (12, 15) of the substance capsule (10) is irreversibly transferred from the closed state to the open state by the gas pressure in the gas container (1) and ensures a discharge of the gas (4) through the substance capsule (10), thereby allowing the gas (4) to mix with the substance (11) arranged in the substance capsule (10).

Images