Connector for beverage discharge line

Abstract

Connector (1) for connecting a beverage discharge line (19) to a beverage tank (40). It includes a central passage (4), a flange (7), an annular first wall (8) extending from the central portion (71) of the flange, and a first ring (9) extending from the first wall. When the connector and the closure (31) of the beverage tank are pressed together along the central axis (A), the first ring provides a leak - free interlock connection with the corresponding annular apron (37) of the closure. An annular skirt (11) extending from the peripheral edge (72) of the flange (7) surrounds the first wall and the first ring, provides protection for the connector, and provides a gripping surface for removal from the closure.

Description

Technical Field

[0001] The disclosure of the present application (hereinafter referred to as the present disclosure) relates to a beverage dispensing system that discharges beverages, and more particularly, to a connector for connecting a beverage discharge line to a beverage tank. Background

[0002] Known beverage dispensing systems intended for commercial or personal use, such as the DraughtMaster system manufactured by the applicant of the present application, are described in, for example, WO2007 / 019848, WO2007 / 019849, WO2007 / 019850, WO2007 / 019851 and WO2007 / 019853.

[0003] Beverage dispensing systems are commonly used in facilities that provide beverages in order to efficiently provide large quantities of beverages, such as carbonated alcoholic beverages such as draft beer and cider, non-alcoholic beverages such as soft drinks, and non-carbonated beverages such as wine and fruit juice. Beverage dispensing systems are mainly used by commercial users such as bars, restaurants, and hotels, but recently, their use by private users in private homes and small-scale facilities has also increased.

[0004] Some beverage dispensing systems, such as the above-described DraughtMaster system, use lightweight crushable disposable beverage tanks or kegs for containing beverages and a pressurization system to enable the flow of beverages from the container to the tapping system. The crushable beverage tank is typically made of a thin and flexible plastic material and may be in the form of a plastic bag. A beverage dispensing system using a crushable beverage keg can install the beverage keg in a pressure chamber. Conventional steel kegs had to be internally pressurized using a CO2 source (such as a CO2 cartridge connected to the keg) when dispensing beverages. However, in a single-use beverage system such as the applicant's DraughtMaster, air from a spatially separate pressure source, such as an air compressor, is used to push out the beer and crush the keg, so that the beer is not exposed to a source of contamination from the time it leaves the brewery until it exits from the spout of the dispensing head. During the dispensing operation, due to the applied pressure, the beverage flows out from the keg containing the beverage into the beverage dispensing line (beverage hose). The beverage dispensing line is connected to a dispensing head having a tap handle. The tap handle enables the operator to control the tap valve, thereby enabling the operation of pouring the beverage. Typically, the tap handle is part of a draft tower installed in a store, or, in the case of using a small beverage dispensing system, the tap handle is typically attached to the housing of the beverage dispensing system, typically attached in front of the keg, and made easily accessible for the operator to pour the beverage.

[0005] For hygienic reasons, all parts within a beverage dispensing system that come into contact with the beverage must be handled aseptically to avoid contamination of the beverage with dirt and bacteria. Therefore, in most beverage dispensing systems for individual users or small facilities, the beverage tank, beverage discharge line, and tap valve are single-use items. By doing so, the beverage is kept away from contamination that may occur during storage and discharge. To ensure the aseptic condition of the parts in contact with the beverage, disassembling the parts in contact with the beverage, i.e., separating the beverage discharge line from the container or separating the tapping valve from the tapping line, is generally not recommended.

[0006] If the beverage discharge line and valve are separated from the keg and not replaced together, a layer of residual beverage may form inside after a certain period. The spout portion usually protrudes from the dispensing head, making it easy to clean. However, since the beverage discharge line and / or tapping valve are located inside the dispensing head and injector assembly, access and cleaning are more difficult. For this reason, the layer of residual beverage may solidify and ultimately clog the beverage discharge line and / or tapping valve. Such accumulation of residues may ultimately impair the beverage discharge operation. Also, even before the beverage discharge line and / or tapping valve become clogged, the beverage discharge line and tapping valve are areas where bacterial growth may be promoted due to the presence of the beverage, a large surface area compared to the beverage volume, lack of sufficient cooling, and proximity to the external environment. Therefore, the residual beverage may pose a hygienic problem.

[0007] Therefore, some beverage dispensing systems use a beverage discharge line that is firmly attached to or integrated with the keg so as to be replaced together with the keg, to avoid the above-mentioned hygienic and / or mechanical problems. However, such systems have drawbacks.

[0008] One is that it is necessary to incorporate or attach the dispensing line to the keg before delivering it to the customer. This not only reduces the compatibility between different types of kegs and beverage dispensing lines, but also makes it prone to occur during transportation, especially leading to possible poor connection between the keg and the beverage dispensing line.

[0009] Another problem with the integrated system is that it is necessary to attach the beverage tank to the beverage dispensing device with the beverage dispensing line already attached, which is a difficult task for non-expert customers and may further result in a system with hygienic problems.

[0010] Some existing solutions adopt a removable connection between the keg and the beverage line. However, these solutions usually require a complex mechanical configuration and a separately provided tool for connecting and disconnecting the keg and the beverage line.

[0011] Therefore, there is a need for a beverage dispensing system that can ensure a hygienic and mechanically uncomplicated connection between the beverage dispensing line and the beverage tank, and can install and replace the beverage dispensing line and the beverage tank in a simple and user-friendly manner. Abstract

[0012] The object of the present disclosure is to provide an improved beverage dispensing system aimed at solving at least some of the above problems.

[0013] The above problems and other problems are solved by the features described in the independent claims. Further implementation forms will be apparent from the dependent claims, the detailed description of the invention, and the drawings.

[0014] According to a first aspect, a connector for connecting a beverage dispensing line to a beverage tank is provided. This connector a keg connector end for connecting to the closure of the beverage tank; a line connector end for connecting to the beverage dispensing line; A central passage that runs along the central axis of the connector between the keg connector end and the line connector end; comprises. The keg connector end a flange having a central portion surrounding the central passage and a peripheral portion surrounding the central portion; an annular first wall for preventing liquid leakage, extending from the central portion of the flange and surrounding the first end of the central passage; an annular first ring for preventing liquid leakage, extending from the first wall and surrounding a disc-shaped first recess; has.

[0015] The connector according to this aspect enables a mechanically simple interlock connection between the beverage discharge line and the beverage tank, and this interlock connection can be automatically engaged by using the same pressure source as the pressure source (of the beverage discharge device) used to crush the beverage tank, thus requiring no additional intervention steps from the user.

[0016] Also, since no separate gasket is required between the connector and the closure of the beverage tank, the configuration of this connector enables a liquid leakage prevention connection structure with less complexity and materials than prior art solutions. Thereby, the entire connector can be easily mass-produced from a single-piece plastic element, for example, by injection molding or 3D printing.

[0017] In an example of an implementation form of the first aspect, the keg connector end has an annular skirt. This skirt extends from the peripheral portion of the flange and surrounds the first wall and the first ring.

[0018] In an example of an implementation form of the first aspect, the skirt extends further from the flange than the first wall and the first ring.

[0019] In an example of the implementation form of the first aspect, the skirt extends from the flange, defining an inner skirt wall facing the first wall and an outer skirt wall on the opposite side, and at least the outer skirt wall has a corrugated surface.

[0020] In an example of the implementation form of the first aspect, the skirt has a second ring disposed at the end opposite to the flange, and the diameter of the second ring is larger than the diameter of the flange.

[0021] In an example of the implementation form of the first aspect, the skirt includes at least one notched segment and at least one solid segment alternately arranged with the at least one notched segment, and the solid segment connects the flange to a second ring disposed at the end of the skirt opposite to the flange.

[0022] In an example of the implementation form of the first aspect, the first wall has a first wall flange disposed at the end farther from the flange, the first wall flange has an outer diameter larger than that of the first wall, and the first ring extends from the outer periphery of the first wall flange.

[0023] In an example of the implementation form of the first aspect, the connector includes at least one support wall extending from the first wall between the flange and the first wall flange to structurally support the first ring and the first wall flange when engaging with the surface of the closure of the beverage tank.

[0024] In some embodiments, a plurality of support walls extend radially from the first wall.

[0025] In some embodiments, four support walls extend radially from the first wall at 90-degree intervals.

[0026] In an example of the implementation form of the first aspect, the first ring extends from the first wall, defining an inner ring wall facing the first recess and an outer ring wall on the opposite side, and the inner ring wall is parallel to the outer ring wall.

[0027] Depending on the embodiment, the inner ring wall and the outer ring wall are parallel to the central axis.

[0028] In an example of the implementation form of the first aspect, the first ring includes a rounded first rim for engaging with the surface of the closure of the beverage tank.

[0029] In an example of the implementation form of the first aspect, the connector further includes at least one rib extending radially from the outer wall of the line connector end, and the at least one rib has an outer rib surface facing radially outward from the line connector end for engaging with a corresponding support surface of the beverage dispensing device.

[0030] Depending on the embodiment, the at least one rib is tapered outward from the line connector end towards the flange.

[0031] Depending on the embodiment, the connector has a plurality of ribs extending radially from the outer wall.

[0032] Depending on the embodiment, the connector includes a plurality of ribs extending from the outer wall, and a plurality of first ribs among them are provided parallel to each other and parallel to the mold release direction of the connector.

[0033] Depending on the embodiment, another plurality of second ribs are provided perpendicular to the mold release direction of the connector.

[0034] In an example of the implementation form of the first aspect, the at least one rib includes snap-lock means arranged on the outer rib surface to enable a snap-lock connection with a corresponding support surface of the beverage dispensing device.

[0035] In an example of the implementation form of the first aspect, the first recess has a first diameter d1, the central passage has a second diameter d2, and the first diameter is larger than the second diameter (d1 > d2).

[0036] In an example of the implementation form of the first aspect, the second end of the central passage at the line connector end has a third diameter larger than the second diameter d2 of the remaining part of the central passage (d3 > d2), whereby a first adapter recess in the shape of receiving a first line adapter is defined, and the first line adapter is arranged to surround the end portion of a beverage discharge line having a fourth diameter d4, and the fourth diameter substantially coincides with the second diameter (d4 = d2).

[0037] In some embodiments, the third diameter d3 of the first adapter recess is smaller than the first diameter of the first recess. That is, d3 < d1.

[0038] In an example of the implementation form of the first aspect, the connector is a solid single part.

[0039] In some embodiments, the connector is made of plastic, preferably recyclable polypropylene such as PP RJ377 MO.

[0040] In some embodiments, the connector is mass-produced by injection molding.

[0041] In an example of the implementation form of the first aspect, the connector includes at least one annular gasket. The annular gasket is arranged on or surrounding a flange, a first wall, and / or a first ring. The annular gasket provides additional sealing for a leak-free connection together with the closure 31 of the beverage tank.

[0042] According to a second aspect, a beverage discharge line for a beverage tank is provided. This beverage discharge line A valve line end having a discharge line valve for selectively allowing or blocking the flow of beverage through the beverage discharge line; A connector line end having a connector according to any of the first aspect implementation forms for connecting the beverage discharge line to the beverage tank; Comprising.

[0043] The beverage discharge line according to this aspect enables automatic engagement with the beverage tank by using the same pressure source as the pressure source (of the beverage discharge device) used to crush the beverage tank. Therefore, no additional intervention steps from the user are required. At the same time, the beverage can be discharged through the valve. The connection with the beverage tank has sufficient strength to maintain the state of being attached to the closure of the beverage tank even while the beverage discharge line is removed from the beverage discharge device, but is not too strong so that it can be manually removed from the beverage tank without the need for additional tools.

[0044] In an example of the implementation form of the second aspect, the discharge line valve is connected to the valve line end via a second line adapter, and the second line adapter is arranged to surround the valve line end and has a shape that snap-fits into a second adapter recess of a corresponding shape provided in the discharge line valve.

[0045] In an example of the implementation form of the second aspect, the connector line end includes a connector, and the connector is connected to the connector line end via a first line adapter arranged to surround the connector line end, and the first line adapter has a shape that snap-fits into a first adapter recess of a corresponding shape provided in the connector line end.

[0046] In some embodiments, the first line adapter and the second line adapter are different and not interchangeable.

[0047] In another possible embodiment, the first line adapter and the second line adapter are the same and interchangeable.

[0048] According to a third aspect, a connector kit for connecting a beverage discharge line to a beverage tank is provided. The connector kit includes a connector according to any of the implementations of the first aspect; a closure for the beverage tank; and The closure includes connecting means for firmly and leak - proofly connecting the closure to the beverage tank at the opening of the beverage outlet; a beverage valve for selectively allowing or blocking the flow of beverage from the beverage outlet through the closure; an annular second wall for preventing liquid leakage, surrounding the beverage valve and having a second rim; an annular apron for preventing liquid leakage, extending from the outer periphery of the second rim and surrounding the disc - shaped second recess; The diameter of the second recess matches the diameter of the first ring of the connector, and when the connector and the closure are pressed together along the central axis, it provides an interlock connection that prevents liquid leakage.

[0049] The connector kit according to this aspect enables a mechanically simple interlock connection between the beverage discharge line and the beverage tank, and this interlock connection can be automatically engaged by using the same pressure source as the pressure source (of the beverage dispensing device) used to crush the beverage tank, thus requiring no additional intervention steps from the user.

[0050] The interlock connection established between the first ring of the connector and the annular apron extending from the outer periphery of the second rim and surrounding the disc - shaped second recess of the closure has sufficient strength to keep the beverage discharge line attached to the closure while the beverage tank is being pulled, but is not too strong so that the beverage discharge line can be manually removed from the closure without the need for additional tools.

[0051] This allows for easy and efficient installation and removal of both the beverage delivery line and beverage tank from the beverage dispensing system, reducing the risk of bacterial growth and blockages within the beverage dispensing system, resulting in a longer life for kegs in the system than the usual 5-7 days.

[0052] Additionally, the connector and closure configuration allows for a leak-tight connection using less material since no separate gasket is required between the connector and the beverage tank closure.

[0053] The option to have the discharge line manufactured and shipped separately adds flexibility to use one discharge line and connector for different beverage tanks that use similar types of closures.

[0054] In one example implementation of the third aspect, the interlocking connection is an annular snap-fit connection provided by corresponding protrusions and recesses disposed on engagement surfaces of the first ring and the apron and configured to resist pulling forces applied between the connector and the closure within a predetermined range.

[0055] In one example of another implementation of the third aspect, the interlocking connection is an annular press-fit or interference fit connection provided by friction between mating surfaces of the first ring and the apron, and the interlocking connection is configured to withstand a pulling force applied between the connector and the closure to a predetermined range.

[0056] In one implementation of the third aspect, the apron tapers at least partially divergently from the second rim and provides a guide surface for the first ring.

[0057] In an example of the implementation form of the third aspect, the apron has a base portion that is directly connected to the second rim and tapers inward to provide additional friction between the first ring and the apron.

[0058] According to a fourth aspect, a beverage dispensing system is provided. The beverage dispensing system includes a beverage discharge line having a discharge line valve disposed at one end and a connector according to any of the implementation forms of the first aspect disposed at the other end; a beverage tank having a closure, the closure having means for providing an interlock connection such that when the connector and the closure are pushed together along a central axis, no liquid leakage occurs with the connector; a beverage dispensing device having a receptacle for receiving and accommodating the beverage tank; and the receptacle has a cavity for receiving the closure of the beverage tank when receiving the beverage tank, the cavity has a seat portion having a through-hole, the through-hole having dimensions that allow the beverage discharge line having the discharge line valve at one end thereof to be drawn through the through-hole, the seat portion has dimensions such that when the line connector end is received in the through-hole, it abuts against the flange of the connector.

[0059] A system according to this aspect enables a mechanically simple interlock connection between a beverage discharge line and a beverage tank, which can be automatically established by using the same pressure source as that used to insert the beverage tank into the beverage dispensing device and crush the beverage tank, without requiring an additional step for the user to intervene to establish the connection. This connection is achieved by the connector abutting against the seat of the cavity and being pressed against the closure, and has sufficient strength to keep the beverage discharge line attached to the closure of the beverage tank while the beverage tank is removed from the beverage dispensing device. However, it is not so strong that the beverage discharge line cannot be manually removed from the beverage tank without additional tools.

[0060] This allows for easy and efficient attachment and removal of both the beverage discharge line and the beverage tank to and from the beverage dispensing system, reducing the risk of bacteria breeding and clogging within the beverage dispensing system. As a result, the lifespan of the kegs within the system becomes longer than the normal 5 - 7 days.

[0061] The option of being able to manufacture and ship the discharge line separately adds flexibility in using one discharge line and connector for different beverage tanks that use similar types of closures.

[0062] According to a fifth aspect, a method is provided as follows. This method includes providing a beverage dispensing device having a receptacle for receiving and accommodating a beverage tank, the receptacle having a cavity for receiving the closure of the beverage tank, the cavity having a seat with a through - hole, the method also includes providing a beverage discharge line having a discharge line valve at one end and a connector according to any of the implementation forms of the first aspect at the other end, the method also includes First, pass the beverage discharge line valve and then the beverage discharge line through the through hole, and pull until the flange abuts against the seat portion to dispose the beverage discharge line within the beverage dispensing device; prepare a beverage tank having a closure with means for providing an interlock connection so that no liquid leakage occurs between the connector; install the beverage tank in the receptacle such that the closure is disposed within the cavity; apply pressure to the beverage tank and press the connector and the closure together to interlock; including.

[0063] The method according to this aspect enables a mechanically simple interlock connection between the beverage discharge line and the beverage tank, which can be automatically engaged by using the same pressure source as the pressure source (of the beverage dispensing device) used to crush the beverage tank, and thus does not require additional intervention steps from the user. The established connection has sufficient strength to keep the beverage discharge line attached to the closure of the beverage tank even while being removed from the beverage dispensing device, but is not too strong so that it can be manually removed from the beverage tank without the need for additional tools. Thereby, both the beverage discharge line and the beverage tank can be easily and efficiently attached and detached to and from the beverage dispensing system, reducing the risk of bacteria breeding or clogging within the beverage dispensing system, and as a result, the lifespan of the keg within the system becomes longer than the normal 5 to 7 days.

[0064] In an example of an implementation of the fifth aspect, the method includes removing the beverage tank from the receptacle, and the removing includes pulling the entire beverage discharge line through the through hole while maintaining the interlock connection between the connector of the beverage discharge line and the closure of the beverage tank.

[0065] In one example of the implementation form of the fifth aspect, the method includes manually separating the beverage discharge line from the removed beverage tank by pulling the connector away from the closure along the central axis.

[0066] These aspects and other aspects will be further clarified by the examples described below.

Brief Description of the Drawings

[0067] Hereinafter, various aspects, implementation forms, and implementation examples will be described in detail with reference to the exemplary implementation forms shown in the drawings.

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

[0068] In the illustrated embodiments described below, structures and features that are the same as or similar to those previously described are denoted by the same reference numerals as those previously used for simplicity.

[0069] Figure 1 shows a cross-section of a connector 1 for connecting a beverage discharge line 19 to a beverage tank 40 according to an embodiment of the present disclosure.

[0070] The connector 1 has a keg connector end 2 for connecting to a closure 31 of a beverage tank 40 as shown in Figures 8 and 9; and a line connector end 3 for connecting to a beverage discharge line 19 as shown in Figures 6 and 7. has.

[0071] A central passage 4 passes between the keg connector end 2 and the line connector end 3 along the central axis A of the connector 1.

[0072] The keg connector end 2 has a flange 7. The flange 7 has a central portion 71 surrounding the central passage 4 and a peripheral portion 72 surrounding the central portion 71.

[0073] An annular first wall 8 for preventing liquid leakage stands from the central portion 71 of the flange 7 and surrounds the first end 5 of the central passage 4.

[0074] An annular first ring 9 for preventing liquid leakage extends from this first wall 8 and surrounds a disc-shaped first recess 10.

[0075] As shown in FIG. 1, the first wall 8 has a first wall flange 28 provided at an end far from the flange 7, and the first wall flange 28 has an outer diameter larger than that of the first wall 8 itself. The first ring 9 stands upright from the outer periphery of the first wall flange 28.

[0076] In this embodiment, a support wall 29 extending from the first wall 8 may be provided between the flange 7 and the first wall flange 28 to structurally support the first ring 9 and the first wall flange 28 when engaging with the surface of the closure 31 of the beverage tank 40.

[0077] The keg connector end 2 stands upright from the peripheral edge 72 of the flange 7 and further includes an annular skirt 11 surrounding the first wall 8 and the first ring 9. The skirt 11 has a second ring 14 disposed at an end opposite to the flange 7.

[0078] In the illustrated embodiment, the skirt 11 extends further from the flange 7 than the first wall 8 and the first ring 9 to protect the first ring 9, and the diameter of the second ring 14 is larger than the diameter of the flange 7.

[0079] The connector 1 according to the illustrated embodiment is preferably made of plastic, more preferably a solid single-piece product made of recyclable polypropylene such as PP RJ377 MO.

[0080] In some embodiments, the connector 1 is mass-produced by injection molding.

[0081] FIG. 2A is a perspective view of a connector according to an embodiment of the present disclosure, seen from obliquely above, and FIG. 2B is a perspective view of the connector seen from obliquely below. As shown in these figures, the skirt 11 includes at least one notched segment 15 and at least one solid segment 16 arranged alternately with the at least one notched segment 15. The solid segment 16 connects the flange 7 and a second ring 14 (located at the distal end of the skirt 11 as seen from the flange 7).

[0082] As shown in FIGS. 2A and 2B and FIG. 5, the connector 1 further includes a plurality of ribs 17 extending radially from the outer wall of the line connector end 3. At least one of the ribs 17 has an outer rib surface 18 facing radially outward from the line connector end 3 for engaging a corresponding support surface of the beverage dispensing device 41.

[0083] As shown in FIG. 2B, the rib 17 in the illustrated embodiment is tapered outward from the line connector end 3 toward the flange 7.

[0084] At least one of the ribs 17 further includes snap-lock means 27 disposed on the outer rib surface 18 to enable the connector to engage in a snap-lock and interlock manner with a corresponding support surface of the beverage dispensing device 41 when the connector is disposed in its seat 44 (as will be described later).

[0085] FIGS. 3A and 3B are views of a connector according to an embodiment of the present disclosure drawn from directions that differ from each other by 90 degrees, and corresponding cross-sections are also shown.

[0086] As shown in FIG. 3B, the first ring 9 extends from the first wall 8 and can define an inner ring wall 91 facing the first recess 10 and an outer ring wall 92 on the opposite side.

[0087] The inner ring wall 91 may be provided parallel to the outer ring wall 92, and the inner ring wall 91 and the outer ring wall 92 may also be provided parallel to the central axis A.

[0088] The first ring 9 has a polished and rounded first rim 93 to improve the engagement with the surface of the closure 31 of the beverage tank 40.

[0089] As also shown in FIG. 3B, the skirt 11 may stand upright from the flange 7 and may define an inner skirt wall 12 facing the first wall 8 and an outer skirt wall 13 on the opposite side.

[0090] As shown in FIGS. 3A, 2A, and 2B, at least the outer skirt wall 13 may have a corrugated surface. This is to enhance the structural integrity and to provide a better gripping surface for grasping the skirt 11 when attaching and detaching the connector to the closure 31.

[0091] FIG. 4 is a top view of a connector according to an embodiment of the present disclosure. As shown in this embodiment, a plurality of support walls 29 extend radially from the first wall 8 below the first ring 9. In this example, the support walls 29 extend radially from the first wall 8 at every 90 degrees, and a total of four support walls 29 are provided.

[0092] FIG. 5 is a bottom view of a connector according to an embodiment of the present disclosure. In the illustrated embodiment, the connector 1 includes a plurality of ribs 17 extending from the outer wall. Among them, a plurality of first ribs 17A extend parallel to each other and parallel to the mold release direction of the connector 1. Also, a pair of second ribs 17B extend perpendicular to the mold release direction of the connector 1.

[0093] FIG. 6 shows a cross-section of a beverage discharge line 19 according to an embodiment of the present disclosure.

[0094] The beverage discharge line 19 a valve line end 20 provided with a discharge line valve 22 for selectively allowing or blocking the flow of beverage through the beverage discharge line 19; a connector line end 21 having a connector 1 for connecting the beverage discharge line 19 to the beverage tank 40; It includes. The connector 1 is connected to the connector line end 21 via the first line adapter 25. The first line adapter 25 is arranged to surround the connector line end 21 and has a shape that snap-fits into the corresponding-shaped first adapter recess 23 provided at the line connector end 3 of the connector.

[0095] The first recess 10 of the connector 1 has a first diameter d1, and the central passage 4 of the connector 1 has a second diameter d2. The first diameter is larger than the second diameter (d1 > d2) in order to form an enlarged space for preventing liquid leakage when connecting to the closure 31 of the beverage tank 40.

[0096] The second end portion 6 of the central passage 4 at the line connector end 3 has a third diameter d3 that is larger than the second diameter d2 of the remaining portion of the central passage 4 (d3 > d2), thereby defining a first adapter recess 23 shaped to receive the first line adapter 25 arranged to surround the end portion of the beverage discharge line 19.

[0097] In some embodiments, the third diameter d3 of the first adapter recess 23 is smaller than the first diameter d1 of the first recess 10. That is, d3 < d1.

[0098] The beverage discharge line 19 has a fourth diameter d4. In some embodiments, the fourth diameter substantially coincides with the second diameter (d4 = d2).

[0099] The discharge line valve 22 is connected to the valve line end 20 of the beverage discharge line 19 via the second line adapter 26. The second line adapter 26 is arranged to surround the valve line end 20 and has a shape that snap-fits into the corresponding-shaped second adapter recess 24 provided in the discharge line valve 22.

[0100] In some embodiments, the first line adapter 25 and the second line adapter 26 are the same and interchangeable with each other.

[0101] The beverage discharge line 19 is made of any flexible plastic material suitable for use in a beverage dispensing system, preferably made of recyclable plastic.

[0102] FIG. 7 shows the discharge line 19 in an assembled state according to one embodiment of the present disclosure. The discharge line 19 includes a discharge line valve 22 for selectively allowing or blocking the flow of beverage through the discharge line 19, and a connector 1 (see FIG. 11) for connecting the beverage discharge line 19 to the closure 31 of the beverage tank 40. The connector 1 is disposed at the connector line end 21. The discharge line 19 is designed to be shipped in an assembled state, for example, by inserting it into the closure 31 of the beverage tank 40 as shown in FIG. 9.

[0103] FIG. 8 is a side view of the closure 31 of a connector kit for connecting the beverage discharge line 19 to the beverage tank 40 according to one embodiment of the present disclosure.

[0104] The closure 31 includes a beverage valve 34 for selectively allowing or blocking the flow of beverage from the beverage outlet through the closure 31, an annular second wall 35 surrounding the beverage valve 34, and an annular apron 37 extending from the second wall 35 for preventing liquid leakage.

[0105] FIG. 9 shows a cross-section of the closure 31 of the above-described connector kit in an assembled and ready-to-ship state according to one embodiment of the present disclosure.

[0106] The closure 31 includes connecting means 32 for firmly and leak-tightly connecting the closure 31 to the beverage tank 40 at the beverage outlet opening 33 (see FIGS. 12 and 13); the aforementioned beverage valve 34; an annular second wall 35 surrounding the beverage valve 34 and having a second rim 36; and comprises.

[0107] An annular apron 37 for preventing liquid leakage extends from the outer periphery of the second rim 36 and surrounds the disc-shaped second recess 39.

[0108] The diameter of the second recess 39 is dimensioned to match the diameter of the first ring 9 of the connector, and as shown in FIG. 11, when the connector and the closure 31 are pressed together along the central axis A, an interlocking connection for preventing liquid leakage is provided.

[0109] FIG. 10 shows a partial cross-section of the closure 31 of the connector kit according to an embodiment of the present disclosure in a close-up view. As shown in this embodiment, the apron 37 extends from the second rim 36 in at least a partially outwardly tapered shape and provides a guiding surface for the first ring 9 as shown below FIG. 11.

[0110] In the illustrated embodiment, the apron 37 has a base portion 38 that is directly connected to the second rim 36 and is tapered inwardly to provide additional friction between the first ring 9 and the apron 37.

[0111] FIG. 11 shows a partial cross-section of the connector kit in a connected state according to an embodiment of the present disclosure in a close-up view. The connector kit has the connector 1 described above with respect to FIGS. 1-5 and the closure described above with respect to FIGS. 8-10. As shown, the interlocking connection between the connector 1 and the closure is an annular press-fit or interference fit connection provided by the friction between the first ring 9 and the engagement surface of the second rim 36 and the apron 37. The amount of friction generated from the engagement surface is set to counteract the tensile force applied between the connector 1 and the closure 31 within a predetermined range. Therefore, even when the closure 31 is lifted together with the beverage tank 40 when removed from the beverage dispensing device 41, the connection is maintained, the entire discharge line 19 is pulled together with the beverage tank 40, and the device 41 can be replaced simultaneously without additional operation by the user.

[0112] In an alternative embodiment (not shown), the interlock connection is an annular snap-fit connection provided by corresponding protrusions and recesses disposed on the engagement surfaces of the first ring 9 and the apron 37, and is configured to counteract the tensile force applied between the connector 1 and the closure 31 within a predetermined range similar to that described above.

[0113] When removed from the beverage dispensing device 41, the user can grasp the protective skirt 11 and remove the beverage dispensing line 19 from the closure 31 of the beverage tank 40 without touching the inner portions of the connector such as the first wall 8 and the first ring 9.

[0114] FIG. 12 shows a close-up of a partial cross-section of a connector kit in a connected state according to another alternative embodiment of the present disclosure. In this alternative embodiment, the connector 1 comprises at least one annular gasket 45. The annular gasket 45 is disposed on or around the flange 7, the first wall 8, and / or the first ring 9. The annular gasket 45 provides additional sealing for a (leak-free) connection between the connector 1 and the closure 31 of the beverage tank.

[0115] As shown in FIG. 12, the seat 44 of the cavity 43 of the beverage dispensing device 41 has an annular pot-like shape. This is to provide a surface corresponding to the line connector end 3 of the connector, and in particular, to provide a surface for mating engagement with the outer rib surface 18 of the rib 17 extending radially from the outer wall of the line connector end 3. In this way, the seat 44 firmly supports the connector 1 when the closure 31 is pressed against the connector 1, and as a result, the interlock connection as described above is realized.

[0116] FIG. 13 is a cross-sectional view of a beverage dispensing system according to an embodiment of the present disclosure. The beverage may be, for example, beer, a carbonated malt-based beverage including non-alcoholic beer, or cider.

[0117] A dispense head for discharging a beverage is supported by a beverage draft tower 47. In some embodiments, it can be arranged directly on a body (not shown) that holds a beverage tank in a beverage dispensing system. The dispense head is provided with a tap handle. The tap handle is connected to a replaceable beverage discharge line valve 22 inserted into the tap handle, controls the opening and closing of the beverage discharge line valve 22, and thus controls the flow of beverage from the beverage discharge line 19 through the dispense head. The dispense head can further include a beverage display disposed at the top to display information regarding the beverage dispensed by the dispense head.

[0118] This system has a replaceable beverage tank 40 for containing a beverage. The beverage tank 40 includes a beverage outlet 33 having a closure 31. The beverage tank 40 may be recyclable or disposable after being replaced from an empty beverage tank 40 with a new beverage tank 5. The beverage discharge line 19 extends from a connector 1 disposed in a seat 44 of a cavity (hollow) 43, through a path disposed in the beverage discharge device 41, along the rear side of the draft tower 47, to the dispense head.

[0119] The beverage dispensing device 41 further has a drain hole (not shown) that communicates from the lowest point of the flow path to an opening at the bottom of the device 41 for discharging residual beer from the flow path after the beverage discharge line 19 is removed.

[0120] The body of the beverage dispensing device 41 has a cavity 43 and a receptacle 42 provided in a lid 46, and both are configured to receive the beverage tank 40. The cavity 43 is designed to receive at least a portion of the beverage tank 40, preferably the small portion that constitutes the closure 31 of the beverage tank 40, in an upside-down state and has a shape therefor. The lid 46 is arranged to cover at least a portion of the beverage tank 40, preferably the larger portion, when at least one beverage tank 40 is attached to the beverage dispensing device 41.

[0121] The cavity 43 is provided at the bottom of the beverage dispensing device 41 under the receptacle 42. The cavity 43 has a seat portion 44. As will be described later, the seat portion 44 receives at least one type of closure 31 of the replaceable keg 40 and has a through hole 42 for passing the replaceable beverage discharge line 19. The seat portion 44 may be replaceable in order to adapt the beverage dispensing system to the replaceable beverage discharge line 19 or the fixed beverage discharge line, respectively.

[0122] A suitable closure 31 of the beverage tank 40 may be insertable into the keg closure space 43 and fixed to the seat portion 44 by a pressure-tight fit that is sealed. Preferably, the closure 31 is fixed to the seat portion 44 by a method such as a screw type or a bayonet type.

[0123] The beverage tank 40 used in the system may be blow-molded and the shape and volume can be adapted to the internal space of the pressure chamber realized by the receptacle 42 and the cavity 43. This enables mass production of both the beverage tank and the beverage dispensing system. The pressure housing of the beverage dispensing system and the corresponding beverage tank may be provided in various sizes.

[0124] The closure 31 may provide sealing performance with respect to the pressure chamber. Also, the closure 33 may provide a flange on which the beverage tank 40 is placed. This flange may be used to support the beverage tank 40. A closure 31 having a fluid blocking function is stably and permanently fixed to the mouth portion of the beverage tank 40 so that no liquid leakage occurs. The mouth portion is usually the same for all sizes of kegs. For this reason, the only difference in the variations of the closure 31 is whether it is an integrated beverage discharge line, a detachable beverage discharge line, or an unsealable seal is used. Therefore, the same standardized closure 31 having a mouth portion that can be connected to the standardized neck portion of the beverage tank 40 that may have various sizes may be manufactured.

[0125] If the beverage dispensing system is always used with a specific keg type, the seat 44 may be permanently installed within the keg closure space 43. Alternatively, several types of seats 44 may be provided to the user, allowing the user to change the seat type on-site. Thereby, the beverage dispensing system can be changed to use different types of kegs depending on the specific beverage consumed.

[0126] The pressure inlet can be configured to receive a pressure medium and allow the pressure medium to reach the gap between the outer wall of the beverage tank 40 and the inner wall of the lid 46. The gap is usually made as small as possible, for example a few millimeters wide, to enable a tight fit between the beverage tank 40 and the pressure chamber. The pressure inlet can form part of, for example, the receptacle 42, the lid 46 or the seat 44, and may include a one-way valve and / or an overpressure relief valve depending on the embodiment. The pressure medium is usually air. However, any fluid such as CO2, N2, water, etc. can be used.

[0127] The beverage dispensing system may have a compressor and / or a gas cylinder that can be selectively connected to the pressure inlet to supply a pressure medium to the gap. To make the system more modular, the pressure inlet and the beverage dispensing system may be compatible with various pressurizing devices. The compressor is used when either the main power supply or the battery power supply is available, and may supply power to the compressor to take in and pressurize atmospheric air from the outside, and pressurize the pressure chamber by injecting the pressurized air into the gap of the pressure chamber. The gas cylinder is used when the main power supply is not available and / or when the battery is inconvenient. The gas cylinder is pre-filled with a pressurized gas such as air, nitrogen, carbon dioxide, etc.

[0128] The separation of the lid 46 from the main body of the beverage dispensing device 41 may depend on tilting the draft tower 47 forward towards its front side as shown in FIG. 14A. This is to release the locking means that connects the main body and the lid 46 in a pressure-resistant connection. Tilting the draft tower 47 may further depend on the engagement of pressure release means. The pressure release means may be, for example, a pressure release button arranged on the front side of the draft tower 47. The pressure release button triggers the pressure release in the pressure chamber, thereby equalizing the pressure in the pressure-sealable housing formed by the main body and the lid 46 and enabling the separation of the lid 46 from the main body.

[0129] In some embodiments, the main body and the lid 46 may be separable only partially such that the lid 46 remains connected to the main body, for example via a hinge. The sealable housing may define a volume of 2 to 100 liters, preferably 5 to 50 liters, more preferably 10 to 25 liters. The above volume constitutes a typical volume of the pressure chamber. The beverage tank is made slightly smaller to fit snugly within the pressure chamber.

[0130] In some embodiments, the beverage dispensing system may have additional housing components that function as an alternative to the lid 46. Such additional housing components have an additional volume and can be coupled to the base portion of the beverage dispensing device 41 to establish a sealable housing that functions as a pressure chamber. In this way, the same base body can be used with different-sized additional housing components, and the beverage dispensing system can be changed to a different beverage tank size, for example 5 liters, 10 liters, or 20 liters. The additional housing components can be replaced by the user, for example by screwing.

[0131] The pressure chamber formed by the receptacle 42 may be thermally insulated. The insulating material can be used in combination with at least one keg 40 and a cooling device for cooling the beverage contained therein. Alternatively, for example, in order to save weight when carried on board, the cooling device may not be used, and instead the insulating material can be used in combination with a pre-cooled beverage tank.

[0132] The beverage dispensing system may have a first power supply unit including a main power supply and a second power supply unit including a battery power supply, and in some embodiments, may further have a third power supply unit including a solar power generation power supply. In order to further enhance the modularity of the system, it may be made compatible with various power supplies. When fixedly installed indoors, a main power supply, such as a household power supply of AC115V or AC230V, is preferred because it provides substantially unlimited power to the system. Such a power supply supplies power to both the cooling unit and the pressurizing unit, as well as other functions such as lighting. The battery is advantageous when used in mobile devices. The battery can be rechargeable, for example, by using the main power supply and a power converter. Solar power generation can be used to directly supply power to the beverage dispensing system, but in most cases it is regarded as an auxiliary power supply unit used in combination with a rechargeable battery because the output of the solar cell is limited when there is no direct sunlight.

[0133] Figures 14A through 14F illustrate the steps of a method of installing a beverage tank in a beverage dispensing system according to one embodiment of the present disclosure.

[0134] The embodiment shown in FIGS. 14A - 14F can correspond to the embodiment of FIG. 13.

[0135] As shown in FIG. 14A, the draft tower 47 can transition from an upright operating state to an inclined non-operating state, preferably by tilting the draft tower 47 forward, for example, about a hinge disposed at its base. The tilting angle is preferably between 0 and 90 degrees from vertical about the hinge, more preferably at least 45 degrees from vertical. Thus, the rear side of the draft tower 47, which was hidden in the operating state shown in FIG. 14F, is exposed in the non-operating states shown in FIGS. 14A-14E, allowing access to the beverage tank 40 and the beverage discharge line 19 as described below.

[0136] As shown in FIG. 14A, when the draft tower 47 is tilted 90 degrees forward, it may be configured to rest on the base portion of the beverage dispensing system. The contact surface between the draft tower assembly and the base portion may be a surface that forms a drip tray intended for placing a beverage glass to receive beverage from the dispense head.

[0137] As shown in FIG. 14B, tilting the draft tower 47 forward can at least partially separate a portion of the body of the beverage dispensing system defined as the lid 46 from the lower portion of the body that forms the cavity 43, thereby allowing the replaceable beverage tank 40 and the beverage discharge line 19 to be inserted or removed and replaced, as described in more detail below.

[0138] As shown in FIG. 14C, after removing the lid 46 in the non-operating state, the beverage discharge line 19 can be inserted into the cavity 43. The beverage discharge line 19 has a discharge line valve 22 disposed at one end and a connector 1 disposed at the other end. The beverage discharge line 19 is first passed through the discharge line valve 22 and then the beverage discharge line 19 through the through-hole of the seat portion 44 provided at the bottom of the cavity 43, and pulled through a path (ending at the base of the draft tower 47) provided in the main body of the beverage discharge device 41 until the flange 7 of the connector 1 abuts against the seat portion 44, thereby being inserted into the beverage discharge device 41. When the connector 1 settles in a predetermined position of the seat portion 44, the discharge line valve 22 can be inserted into the dispense head (e.g., using an applicator), and the remaining discharge line 19 can be inserted into a channel or recess disposed on the back of the draft tower 47.

[0139] As shown in FIG. 14D, when the beverage discharge line 19 is completely disposed at the predetermined positions of the main body of the beverage discharge device 41 and the draft tower 47, a beverage tank 40 provided with a closure 31 that fits the connector 1 and the seat portion 44 can be installed. At this time, the closure 31 is received in the cavity 43 and is aligned with the connector 1 located on the seat portion 44.

[0140] As shown in FIG. 14E, after installing the beverage tank 40 in a predetermined position, the lid 46 can be slid back to a predetermined position of the main body of the beverage dispensing device 41 and locked. When these two parts are connected together using a pressure-resistant connection part, preferably a bayonet mount, a pressure-resistant airtight housing (casing) that functions as a pressure chamber is established. The housing of the main body is preferably made of a pressure-resistant material such as metal or hard plastic so that a pressure chamber can be provided inside.

[0141] As shown in FIG. 14F, when the lid 46 is installed at a predetermined position, the draft tower 47 can be tilted back to the operating state. Further, since pressure can be applied to the beverage tank 40 from a pressure source, the connector 1 and the closure 31 are pressed against a connecting portion configured so that liquid leakage does not occur. Furthermore, when the valve 22 is opened, the beverage can be supplied from the container 40.

[0142] When removing or replacing the beverage tank 40, it is necessary to reverse the procedure in the order from FIG. 14F to FIG. 14A. When removing the beverage tank 40 from the cavity 43 corresponding to steps 14D and 14C, the entire beverage discharge line 19 is pulled out through the through hole together with the discharge line valve 22 while maintaining the interlocking connection between the connector 1 of the beverage discharge line 19 and the closure 31 of the beverage tank 40.

[0143] Thereafter, the beverage discharge line 19 can be manually separated from the removed beverage tank 40 by pulling out the connector 1 along the central axis A from the closure 31.

[0144] Various aspects and implementations of the invention have been described along with several examples. However, upon examination of the specification, drawings, and claims of this application, those skilled in the art will understand that there are many variations in addition to the described examples and will be able to implement them when practicing the invention described in the claims. The terms "comprising", "having", and "including" as used in the claims do not exclude the presence of elements or steps not described. Even if it is not explicitly stated that there are multiple elements in the claims, the presence of multiple such elements is not excluded. The functions of several elements described in the claims may be performed by a single processor or other unit. Even if some matters are described in separate dependent claims, this does not exclude implementing them in combination, and benefits can be obtained by implementing them in combination. A computer program may be stored or distributed in a suitable medium such as an optical storage medium or a solid medium supplied together with or as part of other hardware, but may also be distributed in other forms, such as via the Internet or other wired or wireless electrical communication systems.

[0145] The reference signs used in the claims shall not be construed as limiting the scope of the invention. Unless otherwise specified, the drawings are intended to be read together with the specification and are part of the overall disclosure according to this application. In the specification, terms such as "horizontal", "vertical", "left", "right", "up", "down", and their adjectival or adverbial forms (e.g., "horizontally", "rightward", "upward", etc.) merely represent the orientation of the structures illustrated in the direction in which the reader views. Similarly, terms such as "inward direction" and "outward direction" generally represent the direction of a surface with respect to the longitudinal axis or the axis of rotation depending on the situation.

Claims

1. A connector for connecting a beverage discharge line to a beverage tank, comprising: a keg connector end for connecting to a closure of the beverage tank; a line connector end for connecting to the beverage discharge line; a central passage passing between the keg connector end and the line connector end along the central axis of the connector; The keg connector end has: a flange having a central portion surrounding the central passage and a peripheral portion surrounding the central portion; an annular first wall extending from the central portion of the flange and surrounding a first end of the central passage for preventing liquid leakage; an annular first ring extending from the first wall and surrounding a disc-shaped first recess for preventing liquid leakage; A connector having the above.

2. The keg connector end has an annular skirt, the annular skirt extending from the peripheral portion of the flange and surrounding the first wall and the first ring, the connector according to claim 1.

3. The connector according to claim 2, wherein the skirt extends further from the flange than the first wall and the first ring.

4. The connector according to claim 2 or 3, wherein the skirt extends from the flange and defines an inner skirt wall facing the first wall and an outer skirt wall on the opposite side, and at least the outer skirt wall has a corrugated surface.

5. The connector according to any one of claims 2 to 4, wherein the skirt has a second ring disposed at an end opposite to the flange, and the diameter of the second ring is larger than the diameter of the flange.

6. The connector according to any one of claims 2 to 5, wherein the skirt includes at least one notched segment and at least one solid segment alternately arranged with the at least one notched segment, and the solid segment connects the flange to a second ring disposed at an end of the skirt opposite to the flange.

7. The connector according to any one of claims 1 to 6, wherein the first wall has a first wall flange disposed at an end farther from the flange, the first wall flange having an outer diameter larger than that of the first wall, and the first ring extending from the outer periphery of the first wall flange.

8. The connector according to claim 7, comprising at least one support wall extending from the first wall between the flange and the first wall flange to structurally support the first ring and the first wall flange when engaging the surface of the closure of the beverage tank.

9. The connector according to any one of claims 1 to 8, wherein the first ring extends from the first wall and defines an inner ring wall facing the first recess and an outer ring wall on the opposite side, and the inner ring wall is parallel to the outer ring wall.

10. The connector according to any one of claims 1 to 9, wherein the first ring comprises a rounded first rim for engaging the surface of the closure of the beverage tank.

11. The connector according to any one of claims 1 to 10, further comprising at least one rib extending radially from the outer wall of the line connector end, the at least one rib having an outer rib surface facing radially outward from the line connector end for engaging a corresponding support surface of the beverage dispensing device.

12. The connector according to claim 11, wherein the at least one rib comprises snap-lock means disposed on the outer rib surface to enable a snap-lock connection with a corresponding support surface of the beverage dispensing device.

13. The connector according to any one of claims 1 to 12, wherein the first recess has a first diameter d1, the central passage has a second diameter d2, and the first diameter is greater than the second diameter (d1 > d2).

14. The second end of the central passage at the line connector end has a third diameter greater than the second diameter d2 of the remaining portion of the central passage (d3 > d2), thereby defining a first adapter recess shaped to receive a first line adapter, the first line adapter being arranged to surround an end portion of a beverage dispensing line having a fourth diameter d4, and the fourth diameter substantially coincides with the second diameter (d4 = d2). The connector according to any one of claims 1 to 13.

15. The connector according to any one of claims 1 to 14, which is preferably made of plastic, more preferably a solid single-piece product made of recyclable polypropylene such as PP RJ377 MO.

16. A beverage dispensing line for a beverage tank, A valve line end having a discharge line valve for selectively allowing or blocking the flow of beverage through the beverage discharge line; A connector line end having the connector according to any one of claims 1 to 15 for connecting the beverage discharge line to a beverage tank; A beverage discharge line comprising: **Claim 17** The discharge line valve is connected to the valve line end via a second line adapter, The second line adapter is arranged to surround the valve line end and has a shape that snap-fits into a second adapter recess of a corresponding shape provided in the discharge line valve, The beverage discharge line according to claim 16. **Claim 18** The connector line end comprises the connector according to claim 12, and the connector is connected to the connector line end via a first line adapter arranged to surround the connector line end, and the first line adapter has a shape that snap-fits into a first adapter recess of a corresponding shape provided in the connector line end. The beverage discharge line according to any one of claims 16 or 17. **Claim 19** A connector kit for connecting a beverage discharge line to a beverage tank, The connector according to any one of claims 1 to 15; A closure for a beverage tank; Comprising, the closure Connecting means for firmly connecting the closure to the beverage tank without leakage at the opening of the beverage outlet; A beverage valve for selectively allowing or blocking the flow of beverage from the beverage outlet through the closure; An annular second wall for preventing liquid leakage, surrounding the beverage valve and having a second rim; An annular apron for preventing liquid leakage, extending from the outer periphery of the second rim and surrounding a disc-shaped second recess; Comprising, the diameter of the second recess matches the diameter of the first ring of the connector, and when the connector and the closure are pressed together along the central axis, a connector kit that provides an interlock connection to prevent liquid leakage. **Claim 20** The interlock connection is an annular snap-fit connection provided by corresponding protrusions and recesses arranged on the engagement surfaces of the first ring and the apron, and is configured to resist a tensile force applied between the connector and the closure within a predetermined range. The connector kit according to claim 19. **Claim 21** The interlock connection is an annular press-fit or interference fit connection provided by friction between the engaging surfaces of the first ring and the apron, and the interlock connection is configured to counteract a tensile force applied between the connector and the closure within a predetermined range. The connector kit according to claim 19.

22. The apron presents a tapered shape that at least partially flares out from the second rim and provides a guiding surface for the first ring. The connector kit according to any one of claims 19 to 21.

23. The apron has a base portion that is directly connected to the second rim and is tapered inward to provide additional friction between the first ring and the apron. The connector kit according to any one of claims 19 to 22.

24. A beverage dispensing system, A beverage discharge line having a discharge line valve disposed at one end and a connector according to any one of claims 1 to 15 disposed at the other end; A beverage tank having a closure, the closure having means for providing an interlock connection such that no liquid leakage occurs together with the connector when the connector and the closure are pushed against each other along the central axis. A beverage tank; A beverage dispensing device having a receptacle for receiving and accommodating the beverage tank; Comprising, When receiving the beverage tank, the receptacle has a cavity for receiving the closure of the beverage tank, The cavity has a seat portion having a through hole, and the through hole has dimensions that allow the beverage discharge line having the discharge line valve at one end thereof to be drawn through the through hole. The seat portion has dimensions such that when the line connector end is received in the through hole, it abuts against the flange of the connector. A beverage dispensing system.

25. A method, Including preparing a beverage dispensing device having a receptacle for receiving and accommodating a beverage tank, the receptacle having a cavity for receiving the closure of the beverage tank, the cavity having a seat portion having a through hole, The method also includes providing a beverage dispensing line having a dispensing line valve at one end and, at the other end, a connector according to any one of claims 1 to 15, The method also includes first passing the beverage dispensing line valve and then passing the beverage dispensing line through the through hole and pulling it until the flange of the connector abuts against the seat to dispose the beverage dispensing line within the beverage dispensing device, providing a beverage tank comprising a closure having means for providing an interlock connection so that no liquid leakage occurs between the connector and the closure, installing the beverage tank in the receptacle such that the closure is disposed within the cavity, applying pressure to the beverage tank and pressing the connector and the closure together to interlock them, A method comprising.

26. The method according to claim 25, further comprising removing the beverage tank from the receptacle, the removing including pulling the entire beverage dispensing line through the through hole while maintaining the interlock connection between the connector of the beverage dispensing line and the closure of the beverage tank. A method.

27. The method according to claim 26, further comprising manually separating the beverage dispensing line from the removed beverage tank by pulling the connector away from the closure along the central axis. A method.

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