CA2679984A1 - Container having co2 compressed gas source and overpressure burst safeguard - Google Patents
Container having co2 compressed gas source and overpressure burst safeguard Download PDFInfo
- Publication number
- CA2679984A1 CA2679984A1 CA002679984A CA2679984A CA2679984A1 CA 2679984 A1 CA2679984 A1 CA 2679984A1 CA 002679984 A CA002679984 A CA 002679984A CA 2679984 A CA2679984 A CA 2679984A CA 2679984 A1 CA2679984 A1 CA 2679984A1
- Authority
- CA
- Canada
- Prior art keywords
- pressure
- container
- cartridge
- safeguard
- insert
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000007788 liquid Substances 0.000 claims description 15
- 239000004033 plastic Substances 0.000 claims description 5
- 230000009172 bursting Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000011161 development Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 abstract 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 235000013405 beer Nutrition 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000010006 flight Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D1/00—Apparatus or devices for dispensing beverages on draught
- B67D1/04—Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers
- B67D1/0412—Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers the whole dispensing unit being fixed to the container
- B67D1/0418—Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers the whole dispensing unit being fixed to the container comprising a CO2 cartridge for dispensing and carbonating the beverage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D1/00—Apparatus or devices for dispensing beverages on draught
- B67D1/08—Details
- B67D1/12—Flow or pressure control devices or systems, e.g. valves, gas pressure control, level control in storage containers
- B67D1/125—Safety means, e.g. over-pressure valves
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Devices For Dispensing Beverages (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
The invention relates to a container that can be filled with fluid and closed pressure-tight and from which fluid can be removed, having an insert that can be fixed in an opening of the container while sealing the same. The insert has a high-pressure CO2 cartridge (14), a pressure regulating valve for dispensing CO2 therefrom, and an actuator accessible from outside, the actuation of which taps the high-pressure CO2 cartridge (14). An overpressure safeguard provides, upon undesired increases in pressure in the container, a flow path from the head space thereof through the insert to the atmosphere. The overpressure safeguard is designed as a burst safeguard. It bursts after an internal pressure is exceeded at which the container visibly crowns, but before reaching an internal pressure at which the container explodes.
Description
Container having COz compressed gas source and overpressure burst safeguard Specification The invention relates to a container that can be filled with liquid and closed in pressure-tight condition, and from which liquid can be withdrawn. Examples of such containers are drums, small drums (party kegs) or cans, in which C02-containing liquids, especially beverages, are filled under pressure. In particular, it relates to party beer kegs.
The prior-art container according to EP 1642861 Al has an insert, which can be fixed sealingly in an opening of the container and which is provided with a high-pressure CO2 cartridge, a pressure-regulating valve for discharging COZ
therefrom and an externally accessible control element, which can be actuated to pierce the high-pressure COZ cartridge.
Commercial pierceable CO2 cartridges in a size suitable for pertinent contairiers contain approximately 16 g CO2 under a pressure of approximately bar. The pressure-regulating valve of EP 1642861 Al ensures reduction and precise regulation of the pressure under which the COz discharged into the top space of the container is maintained. The pressure is typically between 0.7 and 1.3 bar. It is equal to or slightly higher than the partial pressure of the CO2 dissolved in the liquid.
The present invention addresses the inherently improbable accident that the pressure-regulating valve according to EP 1642861 Al will ever fail for some reason, since it is possible for a gradual or even very rapid uncontrolled pressure rise to take place in the container. Tests show that a conventional party beer keg withstands an internal pressure of up to approximately 6.5 bar.
At approximately 4 bar, the party keg begins to bulge; the top end plate and/or bottom end plate of the party key swell outward. At approximately 6.5 bar the party keg splits, usually because a folded seam joint between the shell and the top end plate or bottom end plate of the party keg comes undone.
The remaining COZ escapes. The party keg empties out, possibly with a vigorous CONFIRMATION COPY
The prior-art container according to EP 1642861 Al has an insert, which can be fixed sealingly in an opening of the container and which is provided with a high-pressure CO2 cartridge, a pressure-regulating valve for discharging COZ
therefrom and an externally accessible control element, which can be actuated to pierce the high-pressure COZ cartridge.
Commercial pierceable CO2 cartridges in a size suitable for pertinent contairiers contain approximately 16 g CO2 under a pressure of approximately bar. The pressure-regulating valve of EP 1642861 Al ensures reduction and precise regulation of the pressure under which the COz discharged into the top space of the container is maintained. The pressure is typically between 0.7 and 1.3 bar. It is equal to or slightly higher than the partial pressure of the CO2 dissolved in the liquid.
The present invention addresses the inherently improbable accident that the pressure-regulating valve according to EP 1642861 Al will ever fail for some reason, since it is possible for a gradual or even very rapid uncontrolled pressure rise to take place in the container. Tests show that a conventional party beer keg withstands an internal pressure of up to approximately 6.5 bar.
At approximately 4 bar, the party keg begins to bulge; the top end plate and/or bottom end plate of the party key swell outward. At approximately 6.5 bar the party keg splits, usually because a folded seam joint between the shell and the top end plate or bottom end plate of the party keg comes undone.
The remaining COZ escapes. The party keg empties out, possibly with a vigorous CONFIRMATION COPY
fountain of beer. This does not pose any danger to persons but may cause property damage, and laborious cleanup work is needed.
From EP 1688813 Al there is known a container with a built-in pressure system, which is provided with a high-pressure CO2 cartridge, a pressure-regulating valve for discharging COZ therefrom and an externally accessible control element, which can be actuated to pierce the high-pressure COz cartridge. The pressure system is provided with an overpressure safeguard, which in the event of an undesired pressure rise in the container opens a flow path from the top space thereof through the pressure system to the atmosphere.
The overpressure safeguard according to EP 1688813 Al is composed of an overpressure valve, which has a valve element in the form of an overpressure tubing section and which shuts off or opens a complicated flow path via a plurality of openings, bores and ducts. The structural complexity and the cost prices of such an overpressure safeguard are high.
The object of the invention is to provide a container of the said type with an overpressure safeguard that has simple construction and is functionally reliable, and that in the event of an accident signals the customer that something is not right with the pressure system within the container.
The overpressure safeguard that achieves this object bursts after exceedance of an internal pressure at which the container visibly bulges, but before development of an internal pressure at which the container splits. The bursting part of the overpressure safeguard is a diaphragm on the wall of a housing with which the insert protrudes into the container.
After bursting of the overpressure safeguard, the remaining CO2 is blown off from the top space of the container via a well-defined flow path. Thus liquid or foam does not escape, or at least does not do so to a noteworthy extent. If any impairments at all occur as a result, they remain within limits. The visibly bulging container signals to the customer that something is not right with the pressure system within the container.
From EP 1688813 Al there is known a container with a built-in pressure system, which is provided with a high-pressure CO2 cartridge, a pressure-regulating valve for discharging COZ therefrom and an externally accessible control element, which can be actuated to pierce the high-pressure COz cartridge. The pressure system is provided with an overpressure safeguard, which in the event of an undesired pressure rise in the container opens a flow path from the top space thereof through the pressure system to the atmosphere.
The overpressure safeguard according to EP 1688813 Al is composed of an overpressure valve, which has a valve element in the form of an overpressure tubing section and which shuts off or opens a complicated flow path via a plurality of openings, bores and ducts. The structural complexity and the cost prices of such an overpressure safeguard are high.
The object of the invention is to provide a container of the said type with an overpressure safeguard that has simple construction and is functionally reliable, and that in the event of an accident signals the customer that something is not right with the pressure system within the container.
The overpressure safeguard that achieves this object bursts after exceedance of an internal pressure at which the container visibly bulges, but before development of an internal pressure at which the container splits. The bursting part of the overpressure safeguard is a diaphragm on the wall of a housing with which the insert protrudes into the container.
After bursting of the overpressure safeguard, the remaining CO2 is blown off from the top space of the container via a well-defined flow path. Thus liquid or foam does not escape, or at least does not do so to a noteworthy extent. If any impairments at all occur as a result, they remain within limits. The visibly bulging container signals to the customer that something is not right with the pressure system within the container.
In a preferred embodiment, the flow path for blowing off the CO2 leads through an unsealed zone of the control element. For this purpose it is possible to take advantage of existing unsealed zones, such as those of the control element on the insert according to EP 1642861 Al, only slight modifications in the structural design thereof being needed.
In a preferred embodiment, the overpressure safeguard is inactive before the high-pressure COZ cartridge is pierced. The overpressure safeguard is activated by the piercing of the high-pressure CO2 cartridge. In this way it is ensured that the overpressure safeguard functions only if it is actually used, specifically in the event of failure of the pressure-regulating valve.
In a preferred embodiment, the overpressure safeguard bursts at an internal pressure of between 4.0 bar and 9.0 bar, preferably 4.5 bar and 7.0 bar, more preferably 5.0 and 6.0 bar.
In a preferred embodiment, the diaphragm is braced against the control element before the high-pressure CO2 cartridge is pierced. As soon as the high-pressure C0? cartridge is pierced, the diaphragm is released from the control element.
In a preferred embodiment, the diaphragm is countersunk into the insert. In this way it is protected from damage.
In a preferred embodiment, the diaphragm is composed of elastic plastic. In the event of an uncontrolled rise of the internal pressure, the diaphragm undergoes increasing elastic deformation, until it bursts.
The invention will be explained in more detail hereinafter on the basis of an exemplary embodiment illustrated in the drawing, wherein:
Fig. 1 shows a COz compressed gas source in longitudinal section; and Fig. 2 shows the elastic plastic component of a detail II of Fig. 1.
In a preferred embodiment, the overpressure safeguard is inactive before the high-pressure COZ cartridge is pierced. The overpressure safeguard is activated by the piercing of the high-pressure CO2 cartridge. In this way it is ensured that the overpressure safeguard functions only if it is actually used, specifically in the event of failure of the pressure-regulating valve.
In a preferred embodiment, the overpressure safeguard bursts at an internal pressure of between 4.0 bar and 9.0 bar, preferably 4.5 bar and 7.0 bar, more preferably 5.0 and 6.0 bar.
In a preferred embodiment, the diaphragm is braced against the control element before the high-pressure CO2 cartridge is pierced. As soon as the high-pressure C0? cartridge is pierced, the diaphragm is released from the control element.
In a preferred embodiment, the diaphragm is countersunk into the insert. In this way it is protected from damage.
In a preferred embodiment, the diaphragm is composed of elastic plastic. In the event of an uncontrolled rise of the internal pressure, the diaphragm undergoes increasing elastic deformation, until it bursts.
The invention will be explained in more detail hereinafter on the basis of an exemplary embodiment illustrated in the drawing, wherein:
Fig. 1 shows a COz compressed gas source in longitudinal section; and Fig. 2 shows the elastic plastic component of a detail II of Fig. 1.
The CO2 compressed gas source is constructed as an insert, which fits in the bunghole of a container, extends into the container and tightly closes the bunghole. The container is filled under pressure with COZ-containing liquid through the bunghole, which is usually disposed at the middle of its top end plate. Thereafter the bunghole is closed with the insert.
To withdraw the liquid, there can be used an integrated outlet tap, which is disposed on the side wall of the container at the height of the bottom end plate thereof. The liquid flows out under the action of internal pressure and gravity, until a reduced pressure is reached in the top space of the container above the liquid surface therein. To adjust this correctly and maintain it in controlled manner, the CO2 compressed gas source is activated. The CO2 compressed gas source injects CO2 into the top space of the container under a pressure that corresponds to the partial pressure of the COz dissolved in the liquid or that slightly exceeds this partial pressure. Thereby steady emptying of the container is ensured. No air is admitted into the top space of the container. The CO2 content of the liquid remains constant.
The insert has slender elongated shape, and for the most part is radially symmetric relative to a central axis. It is made largely of plastic. The two-component plastic injection-molding technique can be used for manufacture.
When the insert is in installed condition, closing the bunghole of the container, it projects with a housing 10 into the container.
At its inside end housing 10 has a chamber 12 for receiving a high-pressure CO2 cartridge 14 in a snug fit. The head of cartridge 14, at the end face of which it can be pierced, is proximal to the bunghole.
Housing 10 is supported externally with a circumferential collar 16 on the beaded rim of the bunghole. On collar 16 there is molded a seal 18, with which the insert seals the bunghole.
A rotary knob 20 countersunk in housing 10 protrudes outwardly beyond collar 16, and can be actuated to pierce C0, cartridge 14. Rotary knob 20 has a steep male thread 22, with which it is screwed into a complementary female thread of housing 10.
To pierce CO2 cartridge 14 there is used a piercing needle 24, which is structurally combined with the valve member of a pressure-regulating valve.
The valve member is mounted together with an elastic diaphragm 26 at the center of the axis of housing 10. The tip of piercing needle 24 is disposed only a short distance from the end face of COz cartridge 14.
During axial positioning movement of piercing needle 24 on COZ cartridge 14, the valve member lifts from a valve seat 28 of the pressure-regulating valve.
Valve seat 28 is made from elastic sealing material and molded onto housing 10.
Piercing needle 24 is urged by a slide 30, which is disposed between rotary knob 20 and piercing needle 24. Slide 30 is guided in longitudinal sliding relationship in housing 10. Upon actuation, rotary knob 20 is screwed forward against slide 30, which is axially adjusted in the process.
A helical compression spring 32 is clamped between rotary knob 20 and slide 30. Helical compression spring 32 braces slide 30 against piercing needle 24.
Diaphragm 26 bounds a working space downstream from valve seat 28 of the pressure-regulating valve. The working space has a lateral outlet opening, in front of which there is disposed an elastic 0-ring 34. 0-Ring 34 has the function of a non-return valve. It prevents liquid from entering the insert.
To pierce COz cartridge 14, rotary knob 20 is turned by approximately 90 .
Slide 30 is moved axially inward by the screwing thrust of rotary knob 20.
Piercing needle 24 is driven axially inward under elastic deformation of diaphragm 26. The valve member lifts from valve seat 28. After piercing, a very small valve space upstream from the head of CO2 cartridge 14 fills with CO2 under high pressure.
After rotary knob 20 has turned a complete 90 or more, slide 30 springs axially back outward under the force of helical compression spring 32. For this purpose it is actuated by piercing needle 24, which is retracted axially by the elastic return deformation of diaphragm 26. Helical compression spring 32 is compressed. The pressure-regulating valve is closed and a small amount of CO2 under high pressure is admitted into the working space. The compressive forces of the COz on diaphragm 26 contribute to the spring-back of slide 30 actuated by the piercing needle.
Further opening and closing of the pressure-regulating valve is determined by an equilibrium of forces across diaphragm 26, established by the elastic properties of diaphragm 26, the spring constant of helical compression spring 32 and the C0~ pressure in the working space. The determining factor for the pressure of the discharged CO2 is the spring constant of helical compression spring 32.
Usually the user will activate the CO2 compressed gas source when the internal pressure in the container has dropped so much that the stream of liquid emerging through the outlet tap is too weak. However, the C0, compressed gas source can already be activated beforehand without difficulty even if the internal pressure in the container is still high, very likely even when the user first attempts to operate the container at all. Introduction of COz into the top space of the container does not take place as long as the high internal pressure is acting on 0-ring 34 in front of the outlet opening.
The COz compressed gas source is equipped with an overpressure safeguard, which becomes active if the pressure-regulating valve fails and COZ enters the top space of the container at uncontrolled high pressure.
The overpressure safeguard is made by injection-molding thermoplastic elastomer (TPE) onto the wall of housing 10 just in front of the bunghole, such that its part having the smallest material thickness forms diaphragm 36 countersunk in the wall.
Diaphragm 36 is in flush contact with the outer shell of rotary knob 20, which has not yet been activated to pierce CO2 cartridge 14. For this purpose it is placed on rotary knob 20 between two adjacent thread flights of male thread 22.
When rotary knob 20 is turned by 90 to pierce COz cartridge 14, a window in the shell of rotary knob 20 becomes positioned opposite diaphragm 36. In the event of an uncontrolled rise of the internal pressure, diaphragm 36 is able to expand elastically into this window, until it bursts at the location of smallest material thickness at approximately 5.7 bar. Thereby a flow path is opened from the top space of the container at the shell of rotary knob 20;
this path is not absolutely leaktight relative to collar 16, and so the C0, is able to flow out of the top space of the container to the atmosphere.
List of reference numerals Housing 12 Chamber 14 High-pressure CO2 cartridge 16 Collar 18 Seal Rotary knob 22 Male thread 24 Piercing needle 26 Diaphragm 28 Valve seat Slide 32 Helical compression spring 34 0-ring 36 Diaphragm
To withdraw the liquid, there can be used an integrated outlet tap, which is disposed on the side wall of the container at the height of the bottom end plate thereof. The liquid flows out under the action of internal pressure and gravity, until a reduced pressure is reached in the top space of the container above the liquid surface therein. To adjust this correctly and maintain it in controlled manner, the CO2 compressed gas source is activated. The CO2 compressed gas source injects CO2 into the top space of the container under a pressure that corresponds to the partial pressure of the COz dissolved in the liquid or that slightly exceeds this partial pressure. Thereby steady emptying of the container is ensured. No air is admitted into the top space of the container. The CO2 content of the liquid remains constant.
The insert has slender elongated shape, and for the most part is radially symmetric relative to a central axis. It is made largely of plastic. The two-component plastic injection-molding technique can be used for manufacture.
When the insert is in installed condition, closing the bunghole of the container, it projects with a housing 10 into the container.
At its inside end housing 10 has a chamber 12 for receiving a high-pressure CO2 cartridge 14 in a snug fit. The head of cartridge 14, at the end face of which it can be pierced, is proximal to the bunghole.
Housing 10 is supported externally with a circumferential collar 16 on the beaded rim of the bunghole. On collar 16 there is molded a seal 18, with which the insert seals the bunghole.
A rotary knob 20 countersunk in housing 10 protrudes outwardly beyond collar 16, and can be actuated to pierce C0, cartridge 14. Rotary knob 20 has a steep male thread 22, with which it is screwed into a complementary female thread of housing 10.
To pierce CO2 cartridge 14 there is used a piercing needle 24, which is structurally combined with the valve member of a pressure-regulating valve.
The valve member is mounted together with an elastic diaphragm 26 at the center of the axis of housing 10. The tip of piercing needle 24 is disposed only a short distance from the end face of COz cartridge 14.
During axial positioning movement of piercing needle 24 on COZ cartridge 14, the valve member lifts from a valve seat 28 of the pressure-regulating valve.
Valve seat 28 is made from elastic sealing material and molded onto housing 10.
Piercing needle 24 is urged by a slide 30, which is disposed between rotary knob 20 and piercing needle 24. Slide 30 is guided in longitudinal sliding relationship in housing 10. Upon actuation, rotary knob 20 is screwed forward against slide 30, which is axially adjusted in the process.
A helical compression spring 32 is clamped between rotary knob 20 and slide 30. Helical compression spring 32 braces slide 30 against piercing needle 24.
Diaphragm 26 bounds a working space downstream from valve seat 28 of the pressure-regulating valve. The working space has a lateral outlet opening, in front of which there is disposed an elastic 0-ring 34. 0-Ring 34 has the function of a non-return valve. It prevents liquid from entering the insert.
To pierce COz cartridge 14, rotary knob 20 is turned by approximately 90 .
Slide 30 is moved axially inward by the screwing thrust of rotary knob 20.
Piercing needle 24 is driven axially inward under elastic deformation of diaphragm 26. The valve member lifts from valve seat 28. After piercing, a very small valve space upstream from the head of CO2 cartridge 14 fills with CO2 under high pressure.
After rotary knob 20 has turned a complete 90 or more, slide 30 springs axially back outward under the force of helical compression spring 32. For this purpose it is actuated by piercing needle 24, which is retracted axially by the elastic return deformation of diaphragm 26. Helical compression spring 32 is compressed. The pressure-regulating valve is closed and a small amount of CO2 under high pressure is admitted into the working space. The compressive forces of the COz on diaphragm 26 contribute to the spring-back of slide 30 actuated by the piercing needle.
Further opening and closing of the pressure-regulating valve is determined by an equilibrium of forces across diaphragm 26, established by the elastic properties of diaphragm 26, the spring constant of helical compression spring 32 and the C0~ pressure in the working space. The determining factor for the pressure of the discharged CO2 is the spring constant of helical compression spring 32.
Usually the user will activate the CO2 compressed gas source when the internal pressure in the container has dropped so much that the stream of liquid emerging through the outlet tap is too weak. However, the C0, compressed gas source can already be activated beforehand without difficulty even if the internal pressure in the container is still high, very likely even when the user first attempts to operate the container at all. Introduction of COz into the top space of the container does not take place as long as the high internal pressure is acting on 0-ring 34 in front of the outlet opening.
The COz compressed gas source is equipped with an overpressure safeguard, which becomes active if the pressure-regulating valve fails and COZ enters the top space of the container at uncontrolled high pressure.
The overpressure safeguard is made by injection-molding thermoplastic elastomer (TPE) onto the wall of housing 10 just in front of the bunghole, such that its part having the smallest material thickness forms diaphragm 36 countersunk in the wall.
Diaphragm 36 is in flush contact with the outer shell of rotary knob 20, which has not yet been activated to pierce CO2 cartridge 14. For this purpose it is placed on rotary knob 20 between two adjacent thread flights of male thread 22.
When rotary knob 20 is turned by 90 to pierce COz cartridge 14, a window in the shell of rotary knob 20 becomes positioned opposite diaphragm 36. In the event of an uncontrolled rise of the internal pressure, diaphragm 36 is able to expand elastically into this window, until it bursts at the location of smallest material thickness at approximately 5.7 bar. Thereby a flow path is opened from the top space of the container at the shell of rotary knob 20;
this path is not absolutely leaktight relative to collar 16, and so the C0, is able to flow out of the top space of the container to the atmosphere.
List of reference numerals Housing 12 Chamber 14 High-pressure CO2 cartridge 16 Collar 18 Seal Rotary knob 22 Male thread 24 Piercing needle 26 Diaphragm 28 Valve seat Slide 32 Helical compression spring 34 0-ring 36 Diaphragm
Claims (7)
1. A container that can be filled with liquid and closed in pressure-tight condition, and from which liquid can be withdrawn, which container has an insert that can be fixed in sealed manner in an opening of the container and a high-pressure CO2 cartridge (14), a pressure-regulating valve for discharging CO2 therefrom and a control element that is accessible from the outside and that can be actuated to pierce the high-pressure CO2 cartridge (14), and which has an overpressure safeguard, which in the event of an undesired pressure rise in the container opens a flow path from the top space thereof through the insert to the atmosphere, characterized in that the overpressure safeguard bursts after exceedance of an internal pressure at which the container visibly bulges, but before development of an internal pressure at which the container splits, and in that the bursting part of the overpressure safeguard is a diaphragm (36) on the wall of a housing (10) with which the insert protrudes into the container.
2. A container according to claim 1, characterized in that the flow path leads through an unsealed zone of the control element.
3. A container according to claim 1 or 2, characterized in that the overpressure safeguard is inactive before the high-pressure CO2 cartridge (14) is pierced, and in that it can be activated by the piercing of the high-pressure CO2 cartridge (14).
4. A container according to one of claims 1 to 3, characterized in that the overpressure safeguard bursts at an internal pressure of 4.0 to 9.0 bar, preferably 4.5 to 7.0 bar, more preferably 5.0 to 6.0 bar.
5. A container according to one of claims 1 to 4, characterized in that the diaphragm is braced against the control element before the high-pressure CO2 cartridge (14) is pierced and is released from the control element as soon as the high-pressure CO2 cartridge (14) is pierced.
6. A container according to one of claims 1 to 5, characterized in that the diaphragm (36) is countersunk into the insert.
7. A container according to one of claims 1 to 6, characterized in that the diaphragm (36) is composed of elastic plastic.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07009281A EP1990309B1 (en) | 2007-05-09 | 2007-05-09 | Container with CO2 compressed gas source and overpressure burst protection |
EP07009281.2 | 2007-05-09 | ||
PCT/EP2008/003611 WO2008138513A1 (en) | 2007-05-09 | 2008-05-06 | Container having co2 compressed gas source and overpressure burst safeguard |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2679984A1 true CA2679984A1 (en) | 2008-11-20 |
Family
ID=38484452
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002679984A Abandoned CA2679984A1 (en) | 2007-05-09 | 2008-05-06 | Container having co2 compressed gas source and overpressure burst safeguard |
Country Status (9)
Country | Link |
---|---|
US (1) | US20100140265A1 (en) |
EP (1) | EP1990309B1 (en) |
JP (1) | JP2010526263A (en) |
CN (1) | CN101687624B (en) |
AU (1) | AU2008250673A1 (en) |
BR (1) | BRPI0810793A2 (en) |
CA (1) | CA2679984A1 (en) |
EA (1) | EA200971039A1 (en) |
WO (1) | WO2008138513A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB201508263D0 (en) * | 2015-05-14 | 2015-06-24 | Emmerald Polymers Ltd | Pressure vessel |
US9919910B2 (en) * | 2016-02-23 | 2018-03-20 | John Delano Gibson | Fluid pressurization and dispensing system |
IL255921A (en) * | 2017-11-26 | 2018-01-31 | Wilder Haim | Adapter for a pressurized gas container |
CN109515955B (en) * | 2018-10-23 | 2020-05-05 | 塔罗斯科技股份有限公司 | Wine dispenser |
US11692671B2 (en) * | 2020-05-07 | 2023-07-04 | Numat Technologies, Inc. | Apparatus and method for dispensing gas from a storage vessel |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2072816A (en) * | 1935-07-05 | 1937-03-02 | Walter Kidde Sales Company | Valve for aerating liquid vessels |
NL1019562C2 (en) * | 2001-12-13 | 2003-06-17 | Heineken Tech Services | Valve assembly for use with beverage delivery. |
NL1023968C2 (en) * | 2003-07-21 | 2005-01-24 | Heineken Tech Services | Pressure regulator for carbonated beverage container. |
GB0411288D0 (en) * | 2004-05-20 | 2004-06-23 | Interbrew Sa | Alcohol beverage apparatus having a bursting disk |
CA2574257C (en) * | 2004-06-25 | 2013-12-17 | Impress Group B.V. | Disposable tap for a pressurized liquid container |
DE102004047252A1 (en) * | 2004-09-29 | 2006-04-13 | Kurt Oberhofer | liquid container |
EP1688813A1 (en) * | 2005-02-02 | 2006-08-09 | Impress GmbH & Co. oHG | Pressure regulator with piercing device for gas cartridge mountable within the keg closure |
-
2007
- 2007-05-09 EP EP07009281A patent/EP1990309B1/en not_active Not-in-force
-
2008
- 2008-05-06 CA CA002679984A patent/CA2679984A1/en not_active Abandoned
- 2008-05-06 AU AU2008250673A patent/AU2008250673A1/en not_active Abandoned
- 2008-05-06 JP JP2010506843A patent/JP2010526263A/en active Pending
- 2008-05-06 WO PCT/EP2008/003611 patent/WO2008138513A1/en active Application Filing
- 2008-05-06 CN CN200880015437.5A patent/CN101687624B/en not_active Expired - Fee Related
- 2008-05-06 US US12/597,140 patent/US20100140265A1/en not_active Abandoned
- 2008-05-06 EA EA200971039A patent/EA200971039A1/en unknown
- 2008-05-06 BR BRPI0810793-9A2A patent/BRPI0810793A2/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CN101687624B (en) | 2013-02-27 |
BRPI0810793A2 (en) | 2014-10-29 |
CN101687624A (en) | 2010-03-31 |
EP1990309A1 (en) | 2008-11-12 |
JP2010526263A (en) | 2010-07-29 |
AU2008250673A1 (en) | 2008-11-20 |
EA200971039A1 (en) | 2010-04-30 |
US20100140265A1 (en) | 2010-06-10 |
EP1990309B1 (en) | 2012-09-26 |
WO2008138513A1 (en) | 2008-11-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8763866B2 (en) | Vessel having compressed CO2 gas source | |
US8251257B2 (en) | Vessel having CO2 compressed gas source | |
JP4558209B2 (en) | Fluid dispensing container with pressure control device | |
KR101622949B1 (en) | Compressed gas supply device | |
CZ2000647A3 (en) | Apparatus for storage and draught of beer and other beverages containing carbon dioxide and drought method of beverages | |
US20100140265A1 (en) | Container having co2 compressed gas source and overpressure burst safeguard | |
US20130068798A1 (en) | Method and apparatus for dispensing beverages, especially carbonated beverages | |
JP4050703B2 (en) | Pressure regulator for pressurized discharge containers | |
US20230303312A1 (en) | Beverage container having a pressure-relief device and a method of manufacturing a beverage container having a pressure-relief device | |
CN113165859B (en) | Kit for dispensing beverage through dispensing tube comprising dispensing valve | |
AU2006254390B2 (en) | Vessel having pressurized CO2 gas source | |
EP3877321B1 (en) | Bag-in-keg container with valve sealing lip | |
US10625919B2 (en) | Device for preserving beverages | |
JP7171623B2 (en) | Beverage container and corresponding manufacturing method | |
US11299384B2 (en) | Bag-in-keg container with fixed pressure PRV | |
US20130015212A1 (en) | Dispensing unit for liquid containers | |
Oberhofer et al. | Vessel having CO 2 compressed gas source | |
NL2006199C2 (en) | Method and apparatus for dispensing beverages, especially carbonated beverages. | |
ZA200104766B (en) | Container with pressure control device for dispensing fluid. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FZDE | Discontinued |