WO2022074104A1

WO2022074104A1 - Gas container

Info

Publication number: WO2022074104A1
Application number: PCT/EP2021/077665
Authority: WO
Inventors: Markus Lang; Andreas Höfferer; Daniel Manojlovic
Original assignee: Isi Gmbh
Priority date: 2020-10-08
Filing date: 2021-10-07
Publication date: 2022-04-14
Also published as: EP3982031A1; EP3982031B1

Abstract

Described is a gas container (1) having an inner volume for receiving gas (4), comprising a main body (2) having a main body head (3), wherein the main body (2) forms the inner volume at least in sections and wherein at least in the region of the main body head (3) a substance capsule (10) is arranged in the main body (2), which substance capsule contains a substance (11), wherein furthermore the main body head (3) and the substance capsule (10) are closed by means of a cap (8), wherein the substance capsule (10) has a through-flow opening (14) which is arranged opposite the cap (8) and is closed by means of a closure (12, 15) in order to ensure that the substance (11) and the gas (4) are separated from one another. The closure (12, 15) is designed as a membrane (12) or through-flow closure (15) such that in the event of the cap (8) being pierced, the closure (12, 15) is transferred, by means of a gas pressure within the gas container (1), from a closed state irreversibly to an open state in order enable the gas (4) to be completely emptied out of the gas container (1).

Description

GAS TANK

FIELD OF THE INVENTION

The present invention relates to a gas container with an inner volume for holding gas, comprising a base body with a base body head, the base body forming the inner volume at least in sections and a material capsule being arranged in the base body at least in the region of the base body head, which Material included, wherein the base body head and the material capsule are also closed by means of a cap, the material capsule having a through-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 a corresponding gas supply to the device.

It is known to produce carbonated drinks, especially soda, for consumption by means of a soda siphon and a gas container containing carbon dioxide, whereby the water in the siphon is enriched with the carbon dioxide (CO2) from the gas container, whereby soda water is produced, which has a refreshing and invigorating effect on the person

user has . The soda is then often served with a fruit syrup or Drink concentrate, an effervescent tablet or alcoholic beverages to achieve mixed a desired taste and in this processed state z. B. used as an isotonic drink.

In order to avoid any additional expenditure in the preparation of the preferred beverage, DE 34 22 734 C2 discloses a gas container in which the gas contained therein is already enriched with dissolved aroma 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 aroma substances, since the dissolved aroma substances cause corrosion and deposits on the wall of the gas container and on a cap that closes the gas container.

In contrast, US Pat. Flavoring substances is filled, includes. In detail, the capsule has its own through-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 out of the gas container into the soda siphon after flowing through the flow opening and mixing with the aroma substances. With this gas container, however, there is also a certain degree of contamination, since the aromatic substances cause corrosion of the spring and possibly the ball. Furthermore, for the production of such gas containers fall through the many work steps and Individual parts have high production costs, since the through-flow opening of the thin-walled capsule is first closed with the ball, then filled with the aroma substance, the spring is used and finally the cap, which also closes the gas container, is closed. There is also the problem that the ball valve-like closure of the capsule means that the gas pressure must be high enough to overcome the spring force, which means that part of the gas always remains in the gas container in the end, 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, resulting in higher production costs.

OBJECT OF THE INVENTION

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

PRESENTATION OF THE INVENTION

This object 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 material capsule which contains a material is arranged in the base body at least in the region of the base body head includes, with the base body head and the fabric capsule are closed by means of at least one cap, wherein the substance capsule has a through-flow opening arranged opposite the at least one cap, which is closed by means of a closure in order to ensure separation of the substance from the gas, according to the invention solved in that the closure is designed as a membrane or is designed as a flow closure such that when the at least one cap is pierced, the closure can be irreversibly converted from a closed state to an open state by gas pressure within the gas container in order to enable the gas to be completely emptied from the gas container.

As a result, increased gas mixing is ensured in the case of the fluid prepared with a device, for example a siphon, preferably cream or a drink, since the closure of the material capsule of the gas container according to the invention, which contains a material or possibly . a substance mixture, preferably in the form of a flavoring substance, syrup or an effervescent drink, includes, after the at least one cap has been pierced, irreversibly in the open, d. H . staying or permanently open, state can be converted, whereby a complete escape of the gas arranged in the gas container is guaranteed through the substance capsule and out of the gas container into the device.

This is shown, for example, by an increased fizzing effect in a drink or by an increased firmness of cream prepared with the gas container according to the invention. In addition, the additional effect of a complete emptying of the substance arranged in the substance capsule is achieved. Corrosion can also not occur due to the omission 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 im closed state of the gas container is filled. Furthermore, it should be noted that the term “piercing” within the scope of the invention also means piercing, breaking open or the like.

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

For easier production, one and the same cap can be provided for closing the gas container and at the same time for closing the substance capsule on the side opposite the closure, the cap with the substance capsule arranged on it first being 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 sealed by means of a flange, the gas being introduced usually via the cap with seal that has already been inserted. It is also conceivable that the seal is placed on the cap beforehand. 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 complete material capsule is completely prefabricated in a previous production step, in which case a film o to close the material capsule. like . can serve .

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

When the cap of the gas container is pierced, there is an overpressure inside the gas container or an imbalance in the pressure inside the gas container compared to the pressure outside, which causes the membrane to tear or the flow seal to be displaced. As long as the gas container is closed, a counter-pressure is present in the capsule, which corresponds to the gas pressure in the gas container and prevents the membrane from tearing open or the flow-through closure from being displaced.

The gas container is usually made of metal, with the material capsule preferably being made of the same metal or 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 tank according to the invention, it is provided that the membrane is made of a metal, preferably stainless steel or aluminum or 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, the term stainless steel being understood to mean alloyed or unalloyed steels with a special 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), the membrane having a diameter from 3.0 mm to 4.0 mm, in particular 3.6 mm, a wall thickness in the range from 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 weakened zone, which is preferably designed in the shape of a cross or star 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 rupturing the membrane can be specified precisely, for example via the number and depth of the different areas of the weakened zone. A combination of different weakened zones is also conceivable, for example a completely circular weakened zone could be combined in a simple manner with a cross-shaped weakened 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 planar or end face, whereby attachment by means of laser welding on the outer lateral surface of the material container is also conceivable. If plastics are used, the material capsule and the membrane should preferably be designed in one piece.

Puncture of the cap of the gas container creates a pressure difference that can destroy the membrane. The aforementioned position of the weakened zone and the membrane in relation to one another can in particular have a positive effect on the effectiveness of the pressure distribution and, as a result, on the destruction of the membrane. In the gas container disclosed here, the arrangement of the weakened zone on the membrane thus generates an advantageous pressure distribution, which ensures that the substance capsule is completely emptied and the effervescent or syrupy or liquid substance or flavoring is introduced into the device, which in the event an increased or more intense taste can be achieved during the preparation of a drink.

These weakened zones, which are, for example, embossing or indentations or engravings produced by means of a laser, are less deep than the material thickness of the membrane and do not break through, so that the substance cannot escape from the substance capsule. It is therefore particularly preferred in the gas container according to the invention 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 weakened 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 concave, d . H . towards the cap of the gas container or . Base body head, trained curvature serves to achieve or support a targeted central application of pressure on the membrane, whereby tearing or bursting of the membrane is supported.

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

A puncturing unit usually already acts on the cap when screwing on a gas container holder, in which the gas container is arranged, in such a way that it is pierced. Due to the longitudinal position of the piercing element, preferably also in the middle along the longitudinal axis, the piercing unit presses on the membrane when the cap is pierced, which also causes it to be pierced. In other words, with the help of the piercing element, force is transmitted from the cap to the membrane, with the piercing element preferably being designed in a cross shape such that, in particular, outer side surfaces of the piercing element lie against the inner surface of the material capsule. With Hil fe such a cross leadership, it is possible that the piercing element is held in position, with any the fabric is arranged in the interstices formed by the cross guide.

In a preferred embodiment of the gas container according to the invention, it is provided that the throughflow closure can be displaced in such a way that when the cap is pierced, the throughflow closure can be displaced in the direction of the cap by the gas pressure present on the side of a throughflow opening in order to prevent the outflow of the Substance f to allow mixed gas on the substance capsule from the gas tank. In other words - as with a commercially available syringe - a displacement of the flow-through 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, with the gas not only pressing on the flow-through closure, but within it 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-through closure ensures that the substance is completely introduced from the substance capsule into the device.

It is particularly preferred in the gas container according to the invention that the material capsule in the area of the through-flow opening is smaller than the through-flow closure in an uncompressed state and larger in an adjoining area, with the through-flow closure in a compressed state in the closed state extending into the area of the through-flow opening fnung used, preferably pressed, is that after piercing the cap by the gas pressure on a side facing away from the cap of the flow-through closure a displacement of the flow-through closure in the direction of the cap Production of the open state is guaranteed. Due to the fact that the material capsule in the area of the through-flow opening is, preferably significantly, smaller - d. H . the throughflow opening has a smaller cross section or a smaller diameter - is formed, a pressing of the flow closure is guaranteed, wherein when the cap is pierced by the pressure difference that occurs, the flow closure is shifted in the direction of the cap, expands and assumes an uncompressed state. In other words, the pressing in of the flow-through closure is designed in such a way that the pressure applied on the flow-through opening side overcomes the retaining force of the flow-through closure and pushes it in the direction of the cap or of the base body head shifts . For this purpose, depending on the press-in force of the through-flow seal of approx. I ON up to 50N, preferably 30N, with the above data on the diameter of the fabric capsule, a force of approx. 130N to 170N, preferably 150N, required.

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 accommodating the material. Such a design enables simpler and thus more cost-effective production, for example by means of a deep-drawing or extrusion process, with simplified introduction of the material capsule into the gas container also being ensured.

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

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

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

In the case of the gas tank according to the invention, it is particularly preferred that the through-flow closure is made in one piece from a cylinder or disc-shaped element, preferably made of rubber. In other words, in this embodiment the through-flow closure is designed as a simple rubber-like stopper.

In an alternative embodiment of the gas tank according to the invention, it is provided that the Flow closure is formed in two parts from a seal, preferably a ring seal, and a sealing element. The sealing element is inserted into the seal in a gas-tight manner or possibly . glued in . In detail, the seal, which is preferably designed as a ring seal in the case of a tubular design of the material capsule, is used for gas-tight sealing on the inner wall of the material capsule in the area of the through-flow opening or in the case of a tubular design of the material capsule on the inner jacket surface in the area of the through-flow opening. In other words, the seal serves to close the through-flow opening in a gas-tight manner, being in contact with the inner wall of the material capsule in the region of the through-flow opening.

When the gas container according to the invention is used as intended, it is kept in a working state in a gas container holder of a device for processing a fluid and a fluid connection between the gas container and the device is ensured by the gas container being pierced using a piercing unit, with the gas container being used for the Device for discharging the gas-enriched fluid allows, as long as the 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, whereby by piercing the cap of the Gas container, the closure of the substance capsule by the gas pressure in the gas container can be irreversibly converted from a closed state into an open state, whereby the gas can flow out through the substance capsule and the gas is mixed with the substance in the substance capsule sel arranged fabric is guaranteed. In a further alternative embodiment of the invention, the material capsule has a length of 1/4 to 3/4, preferably 1/4, the length of the gas container.

According to the above, a system for treating a liquid with gas is provided according to the invention, the system comprising a gas container according to the invention and a device in which the liquid can be arranged, with the gas container being held in a gas container holder in a working state of the device and a fluidic Connection of the gas container to the device is ensured by the cap of the gas container being pierced by means of a puncturing unit in order to enable the device to be used to discharge the gas-enriched liquid, the closure of the material capsule being pierced due to the puncturing of the cap of the gas container the gas pressure in the gas container is irreversibly transferred from the closed state to the open state and an outflow of the gas through the material capsule is ensured in order to enable the gas to be mixed with the material arranged in the material capsule.

BRIEF DESCRIPTION OF THE FIGURES

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 restrict or even conclusively reproduce it. Further advantageous configurations, details and developments of the invention can also be gathered from the figures. It shows:

Fig. 1 shows a quarter-section illustration of a first embodiment of a gas container according to the invention; 2 shows a representation of a system comprising the first embodiment of the gas container according to the invention and a device;

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

4a shows a top view of a membrane with a cross-shaped weakened zone of the material capsule of the second embodiment of the gas container according to the invention;

4b shows a top view of a membrane with a star-shaped weakened zone of the material capsule of the second embodiment of the gas container according to the invention;

4c shows a top view of a membrane with an at least partially circular weakened zone of the material capsule of the second embodiment of the gas container according to the invention;

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

6 shows a side view in direction B drawn in FIG. 5 of 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 from FIG. 5; Fig. 7 shows a sectional representation 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 is a sectional view of the fabric capsule from FIG. 7 according to the in FIG. 7 marked section line A-A;

Fig. 9 shows a sectional illustration 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 shows a sectional view of the base body in the area of the fabric 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 shows 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 TO CARRY 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 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 at least in the region of the base body head 3 a fabric capsule 10 is arranged in the base body 2, which contains a fabric 11, with the base body head 3 and the fabric capsule 10 also being closed by means of a cap 8, with the fabric capsule 10 facing the cap 8 arranged through-flow opening 14 which is closed by means of a closure 12 , 15 in order to ensure a separation of the substance 11 from the gas 4 .

For easier manufacture, 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 being inserted into the gas container 1 through an opening is used in the base body head 3 . A seal 9 is then inserted, which completely surrounds the cap 8 and the gas container 1 is then sealed by means of a flange, with 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 grips a closure surface 6 in the area of the base body head 3 and performs a reshaping by conical reshaping or by pressing together the end area of the base body head 3, with the remaining area of the cap 8 visible from the outside forming at least in sections a gas container opening 7, into which a piercing unit 21 of a device 20 engages when used as intended.

According to the invention, the closure 12, 15 is designed as a membrane 12 or as a flow-through 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 gas pressure inside the gas container 1. to allow the gas 4 to be completely emptied from the gas container 1 . In other words, the closure 12, 15 is designed such that at a Puncture of the cap 8 by means of the puncturing 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, resulting in complete emptying of the gas 4 from the gas tank 1 is guaranteed.

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

For this purpose, FIG. 2 shows a representation of a system comprising the first embodiment of the gas container 1 according to the invention and the device 20 for processing a fluid, with the device 20 in a working state of the gas container 1 in a gas container holder 22, which for simpler and better or safe handling surrounded by a gas container holder cover 23 , preferably formed of rubber . A fluid connection of the gas tank 1 with the device 20 is ensured by the gas tank 1 by means of

Is pierced on lancing unit 21 . The gas tank 1 allows the device 20 to be used to discharge the fluid enriched with gas 4 as long as the gas pressure in the gas tank 1 is sufficient to open a check valve located in the head 24 of the device 20 and/or in the to keep open state . 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 the in the Material capsule 10 arranged material 11 is guaranteed.

In a bottle 25 of the device 20, this mixture is thoroughly mixed 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 in the form of a lever. When actuating the actuating element 26, a rotational movement takes place via an axle pin 27, whereby a valve arrangement within the head 24 known to the person skilled in the art is actuated, the piercing unit 21 pierces the gas container 1 and the substance 11, the gas 4 and the located in the bottle 25 fluid takes place, so that a discharge of the prepared or prepared desired fluids in liquid or if necessary. also foam-like form is made possible by a discharge nozzle 28 .

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

Here is in Fig. 3 also shows that the membrane 12 can be curved towards the cap 8 in the closed state, with the curvature serving to achieve or support a targeted application of pressure in the center of the membrane 12, whereby tearing or bursting of the membrane 12 is additionally supported. If stainless steel is used for the membrane 12, this 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 aluminum or an aluminum alloy is used, it preferably has a wall thickness in the range from 0.01 mm to 0.03 mm, in particular 0.015 mm, given such diameter specifications.

It is also possible that the membrane 12 is made of a plastic, preferably made of 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.

4a, 4b and 4c, which each show the second embodiment of the gas container 1 according to the invention, it has a weakened zone 13a, 13b, 13c to ensure easier or improved opening of the membrane 12 , which is preferably cross-shaped (weakened zone 13a) or star-shaped (weakened zone 13b) or at least partially circular (weakened zone 13c). Such a weakened zone 13a, 13b, 13c ensures a simpler or more targeted opening of the membrane 12, as a result of which improved mixing of the gas 4 with the substance 11 in the substance capsule 10 takes place or is ensured.

In detail, the membrane 12 has a simpler or targeted opening in the area of the weakened zone 13a, 13b, 13c has a wall thickness of 1/3 to 2/3, preferably 1/2, of its remaining wall thickness.

5 shows a sectional view of the base body 2 in the region of the material capsule 10 of a third embodiment of the gas container 1 according to the invention, the material capsule 10 having a flat membrane 12 in this case. Fig. 6 shows a side view according to the direction B shown in FIG. 4c has a weakened zone 13c that is at least partially circular.

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 designed in the shape of a cross, the piercing element 18 being inside the material capsule 10 on the longitudinal side , preferably centrally along the longitudinal axis, from a region of the cap 8 to the membrane 12. In detail, the cross-shaped configuration of the piercing element 18 acts like a cross guide 19 . Fig. 8, which shows a sectional view of the material capsule 10 from Fig. 7 according to the section line A-A drawn in Fig. 7, with the outer side surfaces of the piercing element 18 forming the cross guide 19 in particular, which are attached to the inner lateral surface of the material capsule 10 for positioning and Abut the guide of the piercing element 18, wherein the substance 11 is arranged in interstices of the cross guide 19.

Fig. 9 shows a sectional view of the base body 2 in

Area of the material capsule 10 of a fifth embodiment of the gas container 1 according to the invention, wherein the closure 12, 15 in this case it is designed as a through-flow closure 15 . The flow-through closure 15 is arranged such that it can be displaced, as shown in the sectional view of the base body 2 in the area of the fabric capsule 10 of the fifth embodiment of the gas container 1 according to the invention, that when the cap 8 is pierced by the piercing unit 21 of the device 20, the flow-through closure 15 penetrates the gas pressure present on the side of a through-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 allow 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 in FIG. 9 and figs. 10 also that the fabric capsule 10 in the area of the through-flow opening 14 is designed to be significantly smaller (by means of a step) than the through-flow closure 15 in an uncompressed state and larger in an adjoining area, with the through-flow closure 15 being in a compressed state in the closed state inserted into the area of the through-flow opening 14, preferably pressed in, is that after the cap 8 has been pierced, the gas pressure on a side of the through-flow closure 15 facing away from the cap 8 causes a displacement of the through-flow closure 15 in the direction of the cap 8 to produce the open condition is guaranteed.

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

However, it is also conceivable that the inner diameter y in the area between the cap 8 and the area of the through-flow opening 14 is not larger than the diameter x, so that (unlike Fig. 10) the through-flow closure 15 can also be displaced by the gas pressure at the Inner surface of the material capsule 10 abuts, the gas 4 due to the lower contact pressure (than in the closed state of the material capsule 10 or the gas container 1) on the inner surface of the material capsule 10 flowing around the through-flow closure 15 laterally. In the non-actuated state of the device 20 or the gas container 1, the through-flow closure 15 is in contact with a section of the material capsule 10 (in the region of the through-flow opening 14) which has an even smaller diameter. 9, as a result of which there is such a high contact pressure force that the gas 4 cannot flow laterally around the flow-through closure 15 .

In a preferred embodiment, the throughflow closure 15 is in one piece. 9 or 10 is formed from a cylindrical or disc-shaped element, preferably made of rubber. However, the flow closure 15 can also be in two parts, like 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 consist of a seal 16, preferably an annular seal, and a sealing element 17 be trained. at the two-part form of execution must be ensured here that the seal 16 and the sealing element 17 itself adapted to each other or. are formed gas-tight with each other. In this case, the sealing element 17 for the material capsule 10 is also designed in such a way that (gas) tightness is ensured.

The present invention thus discloses a system for treating 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, with the gas container 1 being held in the gas container holder 22 in the working state of the device 20 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 puncturing unit 21 in order to allow use of the device 20 for discharging the liquid enriched with gas 4, whereby due to the puncturing of the cap 8 of the gas container 1, the closure 12, 15 of the material capsule 10 is irreversibly transferred from the closed state to the open state by the gas pressure in the gas container 1 and an outflow of the gas 4 through the material capsule 10 is ensured in order to ensure that the gas 4 with the arranged in the fabric capsule 10 Sof f 11 to it possible .

REFERENCE LIST

1 gas tank

2 base bodies

3 base body head

4 gas

5 coat

6 locking surface

7 Gas tank opening

8 cap

9 seal

10 fabric capsule

11 solid, liquid or gaseous substance f

12 closure (membrane)

13a cross-shaped weakening zone

13b star-shaped weakening zone

13c annular weakened zone

14 through-flow opening

15 closure (flow-through closure)

16 ring seal

17 sealing element

18 piercing element

19 Cross guide of the piercing element 18

20 device

21 on lancing unit

22 gas holders

23 Gas Cylinder Holder Cover

24 head

25 bottle

26 actuator

27 axle pin ft

28 Discharge nozzle x diameter of the flow seal 15 y inner diameter of the tubular fabric capsule 10

Claims

26

PATENT APPROACHES Gas container (1) with an inner volume for holding 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 at least in the region of the base body head (3) a substance capsule (10) is arranged in the base body (2), which contains a substance (11), the base body head (3) and the substance capsule (10) also being closed by means of at least one cap (8), the substance capsule (10) has a through-flow opening (14) which is arranged opposite the at least one cap (8) and is closed by means of a closure (12, 15) in order to ensure that the substance (11) is separated from the gas (4), characterized in that that the closure (12, 15) is designed as a membrane (12) or as a flow-through closure (15) such that when the at least one cap (8) is pierced, the closure (12, 15) is released by gas pressure within the gas container ters (1) can be irreversibly converted from a closed state into an open state in order to allow the gas (4) to be completely emptied from the gas container (1). Gas container (1) according to claim 1, characterized in that the membrane (12) is made of stainless steel and with a diameter of 3.0 mm to 4.0 mm, in particular 3.6 mm, a wall thickness in the range of 0.005 mm to 0.02 mm, in particular 0.01 mm. Gas container (1) according to Claim 1, characterized in that the membrane (12) is made of 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. Gas container (1) according to Claim 1, characterized in that the membrane (12) is made 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, a wall thickness in the range from 0.035 mm to 0.065 mm, in particular 0.05 mm. Gas container (1) according to Claim 4, characterized in that the gas container (1) is made of plastic, preferably of polyethylene (PE) or polypropylene (PP). Gas container (1) according to one of Claims 1 to 5, characterized in that the membrane (12) has a weakened zone (13a, 13b, 13c) which is preferably cross-shaped (13a) or star-shaped (13b) or at least partially circular (13c). is trained. Gas container (1) according to Claim 6, characterized in that the membrane (12) in the area of the weakened zone (13a, 13b, 13c) has a wall thickness of 1/3 to 2/3, preferably 1/2, of its remaining wall thickness. 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. Gas container (1) according to one of Claims 1 to 8, characterized in that the material capsule (10) additionally comprises a piercing element (18), which is preferably at least partially cross-shaped, the piercing element (18) inside the material capsule (10) longitudinally, preferably centrally along the longitudinal axis, is formed from a portion of the cap (8) to the membrane (12). . Gas container (1) according to Claim 1, characterized in that the flow-through closure (15) is displaceable in such a way that when the cap (8) is pierced, the flow-through closure (15) moves in the direction of the cap (8 ) is displaceable 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). . Gas container (1) according to Claim 10, characterized in that the material capsule (10) in the area of the through-flow opening (14) is smaller than the through-flow closure (15) in an uncompressed state and larger in an adjoining area, with the The flow closure (15) is inserted, preferably pressed, in a compressed state in the area of the flow opening (14) in such a way that after the cap (8) has been pierced open 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 guaranteed. . Gas container (1) according to one of Claims 1 to 11, characterized in that the material capsule (10) is tubular with an inner diameter (y) to form a cavity for receiving the material (11). . Gas container (1) according to any one of claims 10 to 12 and

Claim 10, characterized in that the 29

Flow closure (15) is cylindrical or disk-shaped, with a diameter (x) of the flow closure (15) in an uncompressed state preferably being larger than an inner diameter (y) of the material capsule (10) in the area of the flow opening (14).

14. Gas container (1) according to any one of claims 10 to 13, characterized in that the flow closure (15) is formed in one piece from a cylindrical or disc-shaped element, preferably made of rubber.

15. Gas container (1) according to any one of claims 10 to 13, characterized in that the flow 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 any 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) to the device (20) is ensured by the cap (8) of the gas container (1) being pierced using a piercing unit (21). is to allow use of the device (20) for discharging the gas (4) enriched liquid, wherein due to piercing the cap (8) of the

Gas container (1) the closure (12, 15) of the substance capsule

(10) by the gas pressure in the gas container (1) irreversibly from the closed state to the open state 30 is transferred and an outflow of the gas (4) through the material capsule (10) is ensured in order to allow the gas (4) to be mixed with the material (11) arranged in the material capsule (10).