ASSEMBLY FOR STORING AND DISPENSING BEER AND OTHER CARBONATED BEVERAGES

Abstract: Assembly of a tapping device and a container for fluid, in particular beer or soft drink, to be dispensed via the tapping device, dispensing means being provided for the fluid, a pressure chamber being provided in the tapping device, in which pressure chamber, during use, the container extends at least partially, pressure means being provided for feeding a pressure medium into the pressure chamber for pressing, via the dispensing means, the fluid from the container without the pressure medium contacting the fluid, the pressure space during use being at least partially defined and closed to the environment by a closing part of the container, at a distance from the dispensing opening of the container, and the dispensing opening of the container being located outside the pressure chamber.

Description: Title: Assembly for storing and dispensing beer and other carbonated beverages The invention relates to an assembly according to the preamble of claim 1. Such assembly is known from European patent application 0 377 195. This known assembly comprises a pressure vessel and a container which can be accommodated therein and which can be compressed by feeding, under pressure, a pressure medium such as air or water into the pressure vessel . By means of a closing screw thread connection, the container is connected to a dispensing line accommodated in a cover part of the pressure vessel. The pressure vessel consists of a box-shaped bottom part and the above-mentioned cover part, which is removable from the bottom part. When this assembly is used, the container is screwed into the removed cover part and subsequently slid into the bottom part, after which the cover part is fixed onto the bottom part. As a result, a closed pressure chamber is created around the entire container. Provided in the dispensing line is a tap by means of which the dispensing line can be opened and closed. When the tap is opened, the beverage can be forced out of the container through the dispensing channel and to the environment, by compressing the container. This known assembly readily enables beverage to be discharged from a compressible container . A drawback of this known assembly is that pressure can be built up in the pressure vessel while no container has been placed in the pressure vessel . Energetically and in terms of safety, this is undesirable. Moreover, before being placed in the pressure vessel, the container should first be screwed into the loose cover part, while moreover, the container should first be opened. Only then can the container be inserted into the pressure vessel and can the pressure chamber be closed. This means that during placement of the container in the pressure vessel, beverage could already flow away to the environment. Moreover, the cover part should be separated completely from the bottom part . This means that particular constructional measures must be taken to be able to withstand the pressure required for compressing the container. A further drawback of this known assembly is that the container in the pressure vessel is retained adjacent the neck only, which results in a relatively unstable positioning of the bottle. It is an object of the invention to provide an assembly of the type set forth in the preamble of the main claim, in which the drawbacks mentioned are avoided while the advantages thereof are maintained. To that end, an assembly according to the invention is characterized by the features of the characterizing part of claim 1. Because the pressure space, during use, is at least partly determined and closed from the environment by a closing part which is to be placed together with the container, the advantage is obtained that pressure can be built up in the pressure vessel only when the container has been positioned in the proper manner. After all, pressure medium fed into the dispensing device could otherwise directly flow away again therefrom. This means that if the device is switched on unintentionally, the absence of a container will quickly be observed, while, moreover, the risk of opening a pressurized device without container, which might cause danger to a user, is eliminated. And precisely when a container is absent, a user will be inclined to handle the assembly less carefully. As a result, an assembly according to the invention is considerably safer than the known assembly. Because the closing part is arranged at a distance from the dispensing opening of the container, the closing pressure is provided over a relatively large surface area, so that a proper sealing can be obtained, while the sealing can take up relatively large tolerances. Since the dispensing opening is located outside the pressure vessel, the pressure medium in the pressure chamber is readily prevented from contacting the beverage to be dispensed. Thus, the quality of the beverage is maintained throughout the duration of its use. A further advantage of an assembly according to the invention is that the container can first be placed in the bottom part, after which the cover part can be closed over the container while the container, at least the dispensing opening, need only be opened, if desired, after its placement in the device. Indeed, the dispensing opening of the container is still accessible after placement of the container in the pressure vessel and formation of the pressure chamber. This means that the container, during placement thereof in the pressure vessel, can remain closed, if this is desired. This readily prevents the beverage from flowing away unintentionally. Ij j an advantageous embodiment, an assembly according to the invention is characterized by the features of claim 2. The collar-shaped closing part extending around the container at a distance from the filling and/or dispensing opening, offers the advantage that the positioning of the container in the pressure vessel is simplified even further. After _all, the part of the container which, during use, extends inside the pressure chamber can easily pass an insertion opening, while the collar-shaped part can strike, in at least one direction, closing means cooperating therewith, while the container may have a substantially cylindrical outer wall, which is advantageous from a productional and aesthetic viewpoint. Accordingly, a proper sealing can be realized in a simple manner, in cooperation with at least a portion of the longitudinal edge mentioned. Moreover, a correct positioning of the container in the pressure vessel is directly obtained thereby. In a further advantageous embodiment, an assembly according to the invention is further characterized by the features of claim 6. In this embodiment, a substantially undeformable container, in which a storage compartment for the beverage is included, can be used. A deformable part separates the storage compartment from the pressure chamber. Particularly outside the tapping device, such container offers the advantage that the storage compartment is well-protected, while during use, it can nevertheless be emptied in a simple manner by means of the pressure medium. Such container is particularly suitable as beverage container for repeated use. In a further preferred embodiment, an assembly according to the invention is characterized by the features of claim 11. In this embodiment, the container is compressible by means of the pressure medium which is fed, under pressure, into the pressure chamber. The fit-on part, which, under the influence of the pressure of the pressure medium, is at least sufficiently undeformable, provides a permanent closure of the pressure chamber. This means that the container can readily be compressed, preferably completely. Such container is eminently suitable as disposable container. In a particularly advantageous embodiment , the container can be completely compressed in the fit -on part. In that case, the container is preferably manufactured from plastic, in particular a polymer, preferably a thermoplastic polymer, so as to be thin-walled and self-supporting. In particular PET or, in a preferred embodiment, PEN are plastics suitable for use for a beverage container according to the invention, particularly since these plastics are properly processable, for instance by injection-molding and blowing. In different applications, in particular when low oxygen- and C0 2 - permeability is desired, a PET/PEN laminate or blend is particularly suitable. Such plastic container can be deformed relatively easily and offers adequate protection to the beverage prior to and during use. In this regard, in particular a relatively large container manufactured from PEN provides a suitable barrier to the passage of oxygen, which is of particular importance especially when a container is used for storing beer. In further elaboration, an assembly according to the invention is further characterized by the features of claim 14. The tubular dispensing means which is relatively fixedly connected to the container, offers the advantage that during use, the beverage to be dispensed from the container does not contact fixed parts of the tapping device. The tubular dispensing means is supplied as well as removed again together with the container. This renders a hygienic usage of such assembly particularly simple. Moreover, this considerably decreases the possibility of contact between the user and the beverage in the container to be dispensed. During use, the tapping device remains clean, so that no complex-, costly and environmentally polluting cleaning operations are required prior to a renewed use of the tapping device . In further elaboration, an assembly according to the invention is further characterized by the features of claim 15. The at least partially flexible, hose-shaped dispensing means offers the advantage that for closing the dispensing channel, it can easily be pressed shut. To that end, a pressure means may for instance be provided in the tapping device, which pressure means, together with the dispensing means, forms a hose tap. In a preferred embodiment, an assembly according to the invention is further characterized by the features of claim 17. Such engagement means offers the advantage that the free end of the dispensing means can readily be engaged and moved to a position outside the dispensing device, for instance for insertion into a hose tap. Moreover, this engagement means can, during use of the tapping device, be visible from the outside thereof and for instance be used for indicating the contents of the container. Thus, the contents of the container are directly clear to the user. When the CQ . 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Moreover, the invention relates to an alternative embodiment of an assembly for storing and dispensing beverages, characterized by the features of claim 35. A known storage and dispensing assembly comprises a vessel, a so-called barrel, in which a quantity of beverage is stored under some excess pressure. The device further comprises a cylinder filled with a propellant, in particular carbon dioxide (C0 2 ) . The vessel comprises connecting means through which, on the one hand, propellant can be introduced into the vessel and, on the other, the beverage can be dispensed via appropriate dispensing means, in particular a tapping device. The beverage is forced out of the vessel by the propellant which is introduced into the vessel under pressure . Such known tapping assembly has the advantage that it has a- simple construction and is simple to operate, while the dispensing pressure of the beer is controllable via the pressure of the propellant. However, the drawback of this known assembly is that blending of the propellant and the beverage in the vessel occurs. This means that the condition of the beverage in the vessel is affected and does not always remain constant. The degree to which the beverage is affected moreover substantially depends on, for instance, the pressure and nature of the propellant, the time in which the vessel is emptied and the accuracy with which the pressure of the propellant is set. Further, the user is limited in the choice of the propellant to be used, in view of its unavoidable contact with the beverage. The object of the invention is to provide an assembly of the type described in the preamble of the main claim, in which the drawbacks mentioned are avoided while the advantages thereof are maintained. To that end, an assembly according to the invention is characterized by the features of claim 35. The separation of the container into a storage compartment for the beverage and a pressure chamber offers the advantage that the beverage and the pressure medium are not brought into contact with each other. The separating means separating the pressure chamber from the storage compartment are arranged so that deformation thereof is possible under the influence of the beverage and the pressure medium. This implies that when the dispensing means are opened and excess pressure is built up in the pressure chamber, the beverage is forced out of the storage compartment by the separating means, while the composition and quality of the beverage remain constant. In particular in the case of carbonated beverages such as beer, this is of particular importance, because this causes the foam action of the beverage to remain constant, which is particularly important in terms of taste but also visually. Moreover, this prevents the dispensing of the beverage from being adversely affected or even made impossible because of incorrect foaming . Because the separating means move and/or deform in the container, the container can have a rigid outer shape if necessary, and maintain the same shape throughout the duration of its use. Hence, such container can be constructed as a refillable container. A further advantage of an assembly according to the invention is that a great freedom in the choice of the pressure source to be used is obtained. For instance, a pressure source can advantageously be employed in which a fluid such as a gas or a liquid can be introduced into the pressure chamber. The pressure source can for instance comprise a pressure cylinder for a propellant such as carbon dioxide (C0 2 ) , but can also be constructed with a pressure pump, for instance for feeding a liquid such as water into the pressure chamber. 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In a further preferred embodiment, an assembly according to the invention is further characterized r features of claim 51. As the cap is fixedly connected to the rest container, such that it cannot be detached without- damage, it can always be established whether the cap has been separated from the rest of the container. Because at least a portion of the dispensing means, at least connecting means therefor, are confined within the container under the cap, and can only be approached by breaking the tampering seal means, the contents of the 'container cannot be reached without this being visible on the "outside of the container, in particular the outside of the cap. Moreover, the dispensing means, confined under the cap prior to use, are adequately protected against damages and foulings, and the contents of the container cannot be contaminated or otherwise affected. In a further elaboration, an assembly according to the invention is further characterized by the features of claim 53. The at least partially flexible tube part can readily be stored under the cap, for instance above the storage compartment, and, at the start of the use, be pulled partially outside the cap, via the opening in the cap. For that purpose, one need merely remove the cover from the opening. If necessary, the tube part may be connected to the cover part, such that when the cover part is being removed, a free end of the tube part is directly carried along to a position outside the cap, for connection to suitable tapping means. In this regard, the cover part may be provided with a print, for instance a logo or an indication of the contents of the container. Accordingly, when the tube part is coupled to those tapping means, the advantage achieved is that in each case, it is and remains clear what are the contents of the container in question. Moreover, the broken-off cover part performs an advertising function. In fact, an engaging means having a comparable function may also be attached to the tube part in a different manner, which is entirely retained under the cap and is freely removable. The invention further relates to a method of dispensing a beverage, in particular beer, preferably by means of an assembly according to the invention. Such method is characterized by the features of claim 57. Such method provides the possibility of dispensing beverage of a constant quality from a container in a simple and economical manner, while different pressure mediums can be used. The invention further relates to a container suitable for use- in an assembly or method according to the invention. Further advantageous embodiments of an assembly, method, tapping device and container according to the invention are described in the subclaims and will hereinafter be specified with reference to the accompanying drawings. In these- drawings : Fig. 1 is a diagrammatic, sectional side elevation of an assembly according to the invention; Fig. 2 is a sectional side elevation of the top end of a container for use in an assembly according to claim 1 ; Fig. 3 is a sectional side elevation of a fit-on part for use in an assembly according to Fig. 1 ; Fig. 4 is a sectional side elevation of the top end of a container in an alternative embodiment, for use in an assembly according to the invention; Fig. 5 is a diagrammatic, sectional side elevation of a container for use in an assembly according to the invention, in a further alternative embodiment; Fig. 6 is a diagrammatic, sectional side elevation of the top part of an alternative embodiment of a beverage container together with, diagrammatically, a relevant part of the tapping device; and Fig. 7 is a diagrammatic, sectional side elevation of a top part of a further alternative embodiment of a beverage container according to the invention, together with the relevant part of the tapping device. Fig. 8 is a sectional side elevation of a container, in a beverage-filled condition, prior to use; Fig. 9 diagrammatically shows a device according to the invention, ready for being connected to a tapping device; Fig. 9A shows a closing device for use with a container according to the invention; Fig. 9B shows an alternative embodiment of closing means for a container according to the invention; Fig. 9C shows an alternative embodiment of a device according to Fig. 9, in which the membrane is fixed under a cover edge; Fig. 10 is a sectional side elevation of a container according to Fig. 8, in emptied condition, with an alternative coupling for the container to the pressure source, located on the outside; Fig. 10A shows the device according to Fig. 10, with the coupling between container and pressure source located on the inside; Fig. 11 is a top plan view of a container according to the invention, with the cap partially broken away; Fig. 12 shows an alternative embodiment of a device according to the invention; Fig. 13 is a top plan view of a membrane for a container according to the invention, in an alternative embodiment ; Fig. 14 is a sectional side elevation of a container according to the invention in a second alternative embodiment ; Fig. 15 shows a device according to the invention in a further alternative embodiment; Fig. 16 is a sectional side elevation of a container according to the invention in a third alternative embodiment, showing diagrammatically a portion of a tapping device for receiving the container; and Figs. 16A-C diagrammatically show three exemplary embodiments of a double-walled foil bag for use in an assembly according to Fig. 16. In the figs. 1-7, corresponding parts have corresponding reference numerals, whereas in figs. 8-16C corresponding parts also have corresponding reference numerals . The assembly shown in Fig. 1 comprises a tapping device 1 and a beverage container 3 disposed therein. In the embodiment shown, the beverage container 3 is bottle-shaped and will be specified hereinbelow. The tapping device 1 comprises a box-shaped first part 5 and a cover 7 which is pivotally attached thereto and which can close the first part at the open side. Fig. 1 shows the cover 7 in the closed condition in full lines, and in an open condition in broken lines. The first part 5 comprises a circumferential wall 9 defining a receiving space for the beverage container 3, which space is to be referred to as pressure chamber 11. Extending along the top edge of the pressure chamber 11 are closing means 13 which can cooperate, in a manner to be described in more detail hereinbelow, with a closing part 15 of the container 3 and which can close off the pressure chamber 11 so as to be at least gastight and liquid-tight. During use, pressure built up in the pressure chamber 11 is entirely taken up by the container 3, the wall of the pressure chamber 11 and the closing part 15 together with the closing means 13. This prevents the cover 7 from having to take up this pressure. Hence, the opening and closing of the cover 7 can take place without any obstructions and without any danger, while, moreover, little closing force is required for the cover 7. Accommodated in the wall 9 of the first part 5 is a pump 17 communicating, via a first line 19, with a source for a pressure medium, which, in the embodiment shown, is the 0 LΠ -. 4J SH CN CQ rH LD 4-J TJ Φ Φ -H SH rd CN Oi rd Φ rd Φ φ A β SH . Φ 3 Φ TJ 0 SH A 0 4-1 ε •H rd © A rd o tc A 0 CJ TJ A φ β z r A Φ 0 rd H u υ H 0 β φ U & 4-> CD CD 0 ft. ε CD CQ φ Φ ft 03 SH A ft 4-> 0 Φ 0 A CQ Φ ». TJ 4-J A ro φ H 4-1 CN 4-> - H td Φ 0 Φ SH 0 -H Φ A A -H SH ε rd TJ TJ Φ CJ A φ SH r- 0 υ SH H 0 CQ Φ 1 φ Φ -H CQ A CQ SH 4-1 Φ 4-> β SH 0 rd Φ ft ε *. rd φ td 4J -H u ε CJ > ft (TJ rd -H MH -. φ TJ > A φ MH φ 4 ε • 0 Xi φ 4-1 A Φ SH SH SH 4J SH Φ -H CQ 4J fc 5 CQ 4J o Φ td • CO Φ SH ε φ SH ft -H 4-J ft rd td SH υ Φ Φ CQ -H A TJ < β 4J φ β • — . -H ε ft "I ε ε -. φ o 0 H φ rd J ft H A beverages such as lemonade, soft drink or wine can also be received in such beverage container 3. The beverage container 3 comprises a preferably cylindrical wall part 35, closed at a first end by a bottom 37. At the side remote from the bottom 37, a shoulder part 39 connects to the cylindrical wall part 35, which shoulder part comprises a cylindrical neck part 41. The neck part 41 encloses a dispensing opening 43 through which beverage can be introduced into and removed from the beverage container 3. The container 3 shown in Fig. 2 is preferably blown from plastic, for instance a polyester such as PET (polyethene terephthalate) , PBT (polybutene terephthalate) or PEN (polyethene naphthalate) . In particular PEN has the advantage that this plastic is particularly gastight, which is of great importance in particular when the beverage container 3 is used for storing a carbonated beverage, such as beer. Moreover, contamination and spoilage of the beverage in the beverage container 3 are thereby prevented. Because the beverage container 3 is blown so as to be bottle-shaped, it has no seams, which readily prevents it from tearing when the inside pressure is increased. As a matter of fact, a beverage container 3 according to the invention can also be manufactured in another manner or from a different material, provided on the neck part 41, over the dispensing opening 43, is a film-shaped tampering seal membrane 45, clamped on the longitudinal edge of the neck part 41 by means of a primary cap 47. The tampering seal membrane 45 seals the dispensing opening 43 so as to be at least temporarily airtight and liquid-tight. In particular when a beverage container 3 is used for packaging beer or a like perishable beverage, this is advantageous, because aseptic packaging of the beverage is thus possible. In particular when a beverage container 3 has a relatively large content, for instance more than 2 liters, this is advantageous, because when the beverage container 3 is filled aseptically, pasteurization of the beverage in the beverage container can be omitted. In the case of such large volumes, pasteurization of the beverage in the beverage container requires unacceptably much time. It is further observed that precisely in the case of such relatively large volumes, the use of a beverage container manufactured from the above-mentioned plastic according to the invention is particularly advantageous, because such beverage container is relatively light and has a relatively small surface relative to its volume, as a result of which any problems regarding the gas permeability of the material of the beverage container are removed even further. These advantages increase when the volume of the beverage container increases. Such beverage container is suitable particularly for packaging beer whose taste or composition is in particular highly susceptible to oxygen attack. Generally, lager is far more sensitive to oxygen than ale. For lager, this sensitivity as spoiling limit lies at about 1-2 ppm (= mg/1) in six months, while for ale this is much higher, for instance three or more times that value in the same period. Hence, a good oxygen barrier is much more important for lager than for ale. In addition, such package is also suitable in particular for beverages having a high C0 2 - content, for instance higher than 3 g/kg. For that reason, too, a package according to the invention is particularly suitable for packaging lager, having a C0 2 -content of for instance 4.8-5.4 g/kg, while the C0 2 -content of ale is for instance about 3 g/kg. It will be understood that a package according to the invention is in fact also excellently suitable for packaging ale and other beverages, also when the container is less compressible. Around the outside of the neck part 41, two circumferential edges 49, 51 extend one above the other. By means of suitable hooking means 53, for instance an annular snap edge, the primary cap 47 is fixed behind the top circumferential edge 49, in such manner that a clamping edge 55 abuts against the top side of the tampering seal membrane 45 along the circumferential edge thereof, and presses this 1 Φ SH 01 0 TJ Φ A rH - A β Φ 01 ι 00 A β 00 00 CQ β CQ rd rd A Φ J H o rd ■ ri en H MH MH en © SH A A i © Φ -H CJ A © A MH rH φ SH 00 A fβ β fβ A Φ H β ft Z A J A 0 A -H β υ 3 H -H υ 3 φ 0 0- 3 u A SH fβ u SH ι φ -H ( TJ rH Q A A β rH rd A 3 fβ A ι V MH oo rH •ri r 0 en Φ SH oo > A 00 A ■ ri β Φ co SH A Φ > rd fβ U Φ φ a rH β Φ o Φ o rH fβ 3 SH υ CQ MH 0 φ H » 01 a rl A CQ β 0 rd A TJ • H A β SH rH J fd rd φ ι β 3 Φ A rH fβ β CQ A Φ ■ ri > TJ Φ A -H β CQ A β A fβ TJ EH Φ rd A β υ rH φ • rβ Φ Φ A CΛ • r— i SH β X r TJ 0 φ tβ rH TJ Φ A rH TJ β A υ rd φ 0 A -H 3 A u A fβ φ β 3 rH υ CQ ι 0 re 0 υ rH rd r- co ■ ri oo en TJ IΛ Φ TJ 00 β Φ > β rd > Φ -H A Φ Φ rH SH «. Φ r-i rd ro rH O CQ CJ a r CQ Oi MH - O A β Φ 0 1 Φ 01 øi 0 Φ ■ ri Φ A CD Φ ■ ri A ε Φ A β β A 01 φ MH υ Φ 0 J Φ rd 00 SH A CQ © ε 01 Φ A ■ ri -H rd rβ A 0 O N£> -H U fd A φ A ~. -H A β rd A © MH φ A CQ 90 ε ft υ β Φ 0 CQ -H .-J A SH ■ ri Φ rd z A MH TJ SH Oi β rd H MH TJ φ CQ <J ft. 0 -H A CQ Φ β A Φ β 00 ø 1 SH rd o -H rd ft r-i H rH -H a > Φ øi A A r-i φ rd TJ A td rH A φ A A CQ 0 β TJ β A 0 β φ Φ β N 0 TJ ft -H ■ ri υ -H CQ Φ > ■ ri 3 0 CQ 0 TJ 0 i rH φ CN ft φ MH fd CN A A A - A β >i 0 ■ ri TJ Φ rH β β A β β CQ rd A 0 rd TJ 0 CJ SH r β rd 00 Φ rd ^ 3 A υ Φ A Φ A υ β > oo β 0 Φ β Φ Φ 0 SH A TJ rH Φ φ CD m β -. > en -H TJ 0 01 rd β ε β A A (β -H SH β Φ r-i rd 0 t fβ ft υ o Φ H β CQ Oi Φ rd β øi rH CJ Φ -H rd Φ A rH SH β A A i ft Φ β υ 3 > rd ■ ri 4H 0 Φ A xi 0 o A CJ 3 β en Φ TJ CQ Φ J Φ β rd A H SH TJ φ TJ øi TJ rd φ MH Φ rH oo 0 0 β A H Φ 00 φ CQ φ A . EH • r CN H A SH tβ ft Φ A β A Φ 1 A A MH 0 TJ β φ 1 φ φ MH Φ A A 1 Φ TJ -H CQ A β 0 rH A td SH Φ MH Φ SH ft . MH CO SH ft CQ A 0 β A O -H TJ 01 Φ ε ■ri - φ CQ o SH TJ ■ ri φ MH β β > β J 00 01 β SH TJ rβ β Φ r- β A 0 r ■ ri -H A 0 ft en φ © φ β A β o r-i rd SH 0 o ^ ε 0 -H 00 ^ TJ A A β Φ β Z 0 rH v Φ υ a O ε υ Φ CQ ■ εri &. CO φ ε CQ TJ A β Φ β A -H A ι Φ TJ A rH A MH φ X o ε MH td Φ 0 4— 1 Φ Φ β en J SH 01 υ en rd β β -H MH CQ -H A A CO β SH SH a Φ 0 td rd o SH -H a a A ft A -H rd 01 φ Φ CQ β A A CN 0 β -H A A a ■ri A υ β A CQ φ Φ 0 -H IH r-i β Φ A β >1 o TJ -H 0 rH A β CQ υ rH β Φ CQ rd •H rl 0 Φ A a A β 01 LD A 0 β H φ N -H H 01 - ■ri ft rd β SH ε A CO 0 0 β CO -H A ft Φ rd A ε a -H 1 > Φ J r-i A r- O β Φ Φ -H 0 A H A CJ to H 01 A ε β CD ■ri VH -H β ■ ri X Φ 01 -H A 0 A fβ A SH ε 01 H a ( 0 β H β a A Φ H H rd CJ 00 © o © 00 J 5 H υ a. | n V) O secondary cap 67, while deformation of the shoulder part 39 of the beverage container 3 is also possible. A further advantage of this manner of attachment is that the secondary cap 67 can be of a relatively rigid design and the beverage container 3 can be of a relatively flexible design, while in each case, the secondary cap 67 continues to provide a proper sealing of the pressure chamber. This means that deformations or displacements of the beverage container 3 relative to the fit-on part 65 do not affect the sealing of the pressure chamber 11. The construction of the fit -on part 65, in particular the tampering seal membrane 45 and the first coupling part 95, offers the advantage that the beverage container 3 can be positioned in the pressure chamber 11 before -the beverage container is opened, while when the pump 17 is switched on, an optimal closing of the pressure chamber 11 is provided and, at the same time, the beverage container 3 is opened. Here, the fit-on part 65 forms at least a portion of the wall of the pressure chamber 11, so that in the absence of a beverage container 3 in the tapping device 1 , no pressure can be built up in the pressure chamber. This is of particular importance for the safety of a user. Moreover, this precisely provides the possibility of operating the tip 105 of the first coupling part 95 from outside the pressure chamber 11. Because the closing edge 75 is spaced from the dispensing opening 43 by a relatively large distance, relatively great tolerances can be received in the fit-on part 65 without the sealing action between the closing part 17 and the closing means 13 being adversely affected thereby, while the dispensing opening 43 is always optimally positioned. Indeed, deformations resulting from relatively great tolerances are simply received by deformations of the fit-on part 65. This means that the closing means 13 may be of a simple and relatively light construction. The construction of the fit-on part 65 and the first part 5 of the tapping device 1 cooperating therewith moreover MH β J TJ β SH 0 MH SH 0 >ι CQ A φ rd A A Φ 0 Φ 0 0 CO A rH rd υ > SH υ J 01 TJ φ -H > en fc β φ A Φ A φ -H 0 0 rβ 00 -H β SH β J A >> CQ A CO 00 0 β rd A SH 01 > A A ε A Φ a A φ 0 ■ ri rd A H -H CJ fd o O rH 0 • Φ U φ β ■ ri ■ H 00 ε 3 Φ Oi SH 3 MH TJ A A β TJ © Φ rH ■ ri ι MH fβ A SH r β © A Φ rC A 0 SH A <tf 0 00 A 3 SH Φ β CQ CJ J β A Φ en MH H β a φ 5 rd r-i Q 00 φ 0 id CQ H u Φ rd β CN SH • 0 CJ υ r-i -H ■ ri a 00 φ a. oo ■ ri A A o Φ A A β φ SH CO CN O SH A SH 3 Φ Xi fO •H 0 id Φ SH A a SH A ε - β ~ Φ in Φ 3 -H SH ■ ri ι MH CQ SH r β SH Φ fβ rH ε Φ Φ CN -H - a > A rH β ■ ri TJ rd TJ Φ β tβ u MH r-i Φ A Φ φ 3 0 υ SH ■ ri 1 β 01 β TJ A 0 J •H -H rH 0 TJ 0 -ri A A A υ a A φ υ > φ SH ε O 0 MH - 01 Φ φ -H 1 01 Φ SH 0 A rβ > A CQ Φ β 01 a β SH A A ■ ri ( β A Φ *. Φ Φ SH A CQ SH CQ rd ε υ 0 Φ 0 Φ -H A -ri ™ φ -H A A MH H > A TJ A > A 0 CJ Φ r 0 Φ TJ rl A >* 0 A rd TJ Φ β TJ Φ CN A ε A MH β A Φ Φ A øi U . φ EH A a CQ rd β Φ CQ A rd TJ CO A ■ ri β •H ε • J β -H A a β A 0 00 A 0 A a 0 E H A o A >ι a A Φ σs CJ A CN -H SH CQ 01 A . 0 3 rd φ β re ι Φ A rl ε SH M A Φ rH J Φ ι -H SH β A rH -H Φ β rH SH 0 rd A rd > A -H rH a J CN > A Φ A tβ id TJ 0 0 TJ A rd ι • rd A > 0 β 0) H Oi β ■ ri 01 A 0 φ - φ ■ ri φ -H a β J A A A fc A -H TJ β β fd A TJ Φ a Φ φ ■ ri Φ ε β Φ A a A 0) ε -H ■ ri CQ A rd υ rβ TJ -H X «Λ SH SH β A Φ SH φ TJ 0 β Φ Φ td β Φ ε o SH 3 o; MH CO υ φ β > SH A a 0 MH β A 0 Φ 0 ε a A O 0 ■ ri r A J A MH Φ ιβ CO 0 A 0 φ 3 φ CO fC A SH A φ A 0 A > TJ H 00 TJ SH SH SH in fβ TJ β 01 A H • H A ^ TJ 0 © β rd • © ao >> φ r-i A A TJ 01 CQ -H β SH CQ -H -H r u I β rH MH ft. -H td φ Φ - β CD A te A β A rd MH S u o 0 β CQ H 00 o CN 00 rH rH A øi C fC SH φ -H • H te H A a SH TJ β oo SH β φ CN a (β 0 ε rH U -H A β Φ TJ CD A CQ 0 rd β A Φ A Φ ε rH A Φ TJ A A β CQ rd 0 A -H U CQ A CD Φ β EH rd O -H A rd • CD 01 m H re en D Xi CN CN A A β A A A A SH SH rd tβ td rd A a A > fO H O SH β 01 β rd 0 β -H rH -H -H H β A TJ A U -H β o β Φ β 0 A CQ 01 CJ J β φ β Φ CQ CO 00 Φ CQ 0) rd Φ Φ ε rd φ φ <# A υ SH A TJ ro Φ β rH 3 A Φ SH UD A r-i <φ SH -H 00 Φ SH φ o β r-i Φ >tf A A A 0 • * 00 A A fβ > V) Φ TJ ) 01 A β Z -H ft ζ ft P. te A Φ A A A TJ φ CQ β Φ ft CQ < TJ CQ φ Oi rβ SH Φ > Φ A » TJ Φ CQ rβ Φ r-i φ SH CO -H en "* Φ - SH A SH A φ φ - Φ rH Φ MH CN SH MH β Φ -. rd β A β H A β β 0 H H φ CN rβ 00 rH © 3 © J © SH S - -H -J υ z H SH Φ a υ. 3 0 r-i fC TJ β fβ D H in a r-i o 00 re H 3 υ SH -H CJ SH Φ a a 3 β te A A 3 TJ NO φ TJ > 0 O a « ι 0 00 © tβ 01 φ rH rβ Φ Φ en Φ u -H β Φ MH A H β X CQ MH CQ >ι H J φ X • H MH CQ -H m m A SH (TJ a Oi β -H rH a β 0 υ Φ A EH • φ > 0 A fβ β φ φ A TJ φ r A υ CQ φ TJ connected to a primary cap 547 which is secured on the neck part 541 by means of a longitudinal edge under a ridge 549. The primary cap 547 comprises a closed top face 564 extending above the resilient membrane 562. Above the cylindrical wall 556 of the connecting sleeve 552, the top face 564 is bent upwards, as a result of which a space is left clear between the membrane 562 and the bottom side of the top face 564 when the connecting sleeve is in its lowermost position. The end of the coupling part 595 facing the membrane 545 is sharp. An assembly according to Fig. 6 can be used as follows. By means of the pump 517, a pressure medium is introduced via the pressure chamber 520 into the pressure space 511 between the bag 544 and the wall 535 of the container 503, causing a pressure buildup in the bag 544. Accordingly, the connecting sleeve 552 is pressed away upwards, inter alia by pressure exerted on the flange 558. This involves the resilient membrane being moved up against the bottom side of the top face 564, while the sharp end of the coupling part 595 is forced through the film 545, thereby releasing the passage of the line 599 to the inner space of the bag 544. The membrane 562 and the primary cap 547, in particular the top face 564 thereof, provide an airtight and liquid-tight sealing of the neck part 541. Such embodiment of an assembly according to the invention is particularly simple and practical in use. Fig. 7 shows a further alternative embodiment of at least a top part of a beverage container 603 according to the invention, positioned in a tapping device 601, for instance as shown in Fig. 1. Of the tapping device 601 and the beverage container 603, only those parts are diagrammatically shown that are relevant for a proper understanding of this embodiment. The other parts have already been described in detail . In the embodiment shown in Fig. 7, the fit-on part 665 is of a two-piece construction, with a first, central part 666 being fixed connected to the beverage container, while a second, annular part 668, located adjacent the wall 609 of the tapping device 601 during use, can be fitted loosely or is for instance pivotally connected to the tapping device and can be closed over the beverage container. Adjacent the dispensing opening, the first central part 666 is connected to the bottle-shaped beverage container 603 in one of the manners described hereinabove, for instance by the use of the primary and secondary caps . Along the outer longitudinal edge, the first part 666 comprises a downwardly extending longitudinal edge 670, while from the bottom edge thereof, a second longitudinal edge 672 extends, downwardly inclining outwards. The annular second part 668 is provided, along its inner lgngitudinal edge, with a sealing section 674 which can sealincfly abut against the longitudinal edges 670 and 672. From the section 674, an inclined face 676 extends outwards down to a second sealing section 678, which extends outwards from the outer longitudinal edge of the second part 668 and can abut against the inside of the longitudinal wall 609 of the tapping device 601. By locking means not shown in Fig. 7, as shown in for instance Fig. 1, the fit-on part 665 can be retained in the tapping device 601 through engagement with the top side of the second part 668. On the central part 666, an outside cap 716 is secured over the dispensing means by means of resilient projections 680 which are connected to the first part 666 and extend through openings in the outside cap. During positioning of the second part 668 of the fit-on part 665, it is slid over the outside cap 716, with the resilient projections 680 being pressed away inwards by a resilient edge 682 on the second part 668, while releasing the outside cap 716. The advantage thus achieved is that the beverage container 603 can be engaged at the outside cap 716 during the positioning thereof in the tapping device 601, without possibly becoming detached. After all, it is retained by the resilient projections 680. This easily enables manipulation of the beverage container 603 during positioning. Moreover, the β TJ Φ SH Φ SH 01 0 ) Φ MD β 00 . 0 Φ A Φ Φ r-i Φ β Φ β 1 H β β A 01 A H β -H A Φ -H -H © r when the contents of the container to be removed were different from those of the new container to be positioned. A further advantage of this is that there is always a direct connection between the shield-shaped element and the contents of the beverage container, so that it is always clear to the user which type of beverage will be dispensed from the tapping device. Thus, mistakes are readily prevented. Of course, at least a part of the dispensing means may be suitable for reuse. Fig. 8 shows a container 701 according to the invention, in sectional view. The container 701 is barrel- shaped and comprises a container body 702, built up from a cylindrical longitudinal wall 703, a bottom 704 and a shouldej- part 705. The container body 702 is substantially gastight and liquid-tight , except for a connecting opening 706, to be further discussed hereinbelow, in the bottom 704 and a dispensing opening 707 in the shoulder part 705. Between the bottom 704 and the shoulder part 705, a membrane 708 is attached to the wall 703, which membrane separates the connecting opening 706 from the dispensing opening 707. In its starting condition, i.e. before it is placed in the container 701, the membrane 708 is preferably circular and has a diameter larger than the diameter of the wall 703. The membrane 708 divides the container into a bottom compartment 709, henceforth referred to as pressure chamber 709, and a top compartment 710, henceforth referred to as storage compartment 710. In the condition shown in Fig. 8, the storage compartment 710 is maximally filled with a beverage to be dispensed, as a result of which the membrane is forced against the part of the wall 703 extending therebelow and against the bottom 704, over the connecting opening 706. In this condition, the membrane 708 preferably abuts substantially without tension or slightly elastically stretched, against the inside of the container 701. At its top side, the container 701 comprises closing means 711 in the form of a relatively large cap, which, in the embodiment shown, covers the entire shoulder part 705. The cap 711 is provided with a top face 719 and an annular apron 712. Adjacent its free longitudinal edge, the apron 712 is provided with an annular groove 713 which is open on the inside and in which an annular edge 714 of the container 701 is receivable with a proper fit. This annular edge 714 is for instance formed by a wall part which is displaced outwards at some distance below the shoulder part 705. The edge 714 preferably has such a shape that the cap 711 cannot be removed from the container 701 without damaging the cap 711 and/or the edge 714. To that end, the edge 714 may for instance be provided with a relatively sharp edge part 715 which, during a vertical movement of the cap 711, cuts into the groove 713. In fact, the edge 714 may of course also be provided on the cap 711 and the groove 713 may be provided in the wall of the container 701, while the edge 714 may also be separately manufactured and mounted on the container 701 or the cap 711. Further, it is of course also possible to fixedly connect the cap 711 to the container 701 by means of gluing or like techniques, also when the cap 711 has a smaller diameter than the container 701, or a shape different therefrom. It is important, yet not essential, that the cap 711 cannot be removed from the container 701 and possibly be placed back thereon in an unrecognizable manner, so that the space 716 within the cap 711 is and remains closed from the outside world until it is actually used, as will be further described hereinbelow. A flexible dispensing hose 717 has its first end connected to the dispensing opening 707, and has its opposite end provided with coupling means 718 for coupling that end to a tapping device T, to be further indicated hereinafter. The cap 11 has its top face 719 provided with an opening 720 in which, via a number of tampering seal lips 721 (Fig. 11) , a cover part 722, which can be broken away, is mounted so as to cover the opening 720. The dispensing hose 717 is mounted on the side of the cover part 722 facing the inner space 716, adjacent the coupling means 718. Upon the removal of the cover part 722 from the opening 720 by breaking the tampering seal lips 721, the dispensing hose 717 is at least partially pulled to a position outside the cap 711, in such a manner that the coupling means can be connected to the tapping device T. In fact, the hose 717 may also be located inside the cap lϊ loose from the cover part 722, where it can be engaged through the opening 720 upon removal of the cover part 722. Many variations thereto are possible, as well as to the arrangement of the opening 720 in the cap 711. By coupling the cover part 722 to the dispensing hose 717 adjacent the coupling means 718, the cover part 722 will always be visible at the tapping device T. Useful information can be provided on the cover part 722, for instance an indication of the contents of the container, brand and advertising, which always remains visible during use of the tapping device. Because prior to use, the cover part 722 closes the opening 20 entirely, while the dispensing means 77, 717, 718 are confined under the cap 711, manipulation of the contents of the container and/or the dispensing means is readily prevented. A container according to Fig. 8 can be used as follows. The container 701 is connected with its bottom 4 to a pressure source 724 (Fig. 10) , for instance by positioning it in a receiving part 725, with a pressure line 726 being automatically connected in the connecting opening 706 in the bottom 704. For that purpose, the connecting opening may be slightly elevated from the bottom face 704, to create a dent 727 in the bottom 704. In the connecting opening 706, preferably a non-return valve or like valve means is incorporated, which is automatically opened or closed by coupling or decoupling respectively the pressure line. This prevents gas or liquid from flowing from the pressure chamber r « closing device can be pushed away downwards, while releasing a dispensing passage. In this position, the closing device 731 can be fixed, for instance through a slight rotation or through deformation. Also, a closing device can be used which is operated by removing the cover part 722. Many variations thereto are possible. Suitable closing devices are further known from the prior art. The hose 717 is suitably connected to a tap 730 of a tapping device, for which purpose the coupling means 718 are for instance designed as quick-action means capable of cooperating with quick-action means of the tap 730. As pressure source, different types of gases or liquids may be used. For instance, gas may be fed under pressure from a container or pressure line network, or a gas or liquid may be fed by means of a pump 729, as shown in Fig. 9. By feeding a pressure medium into the pressure chamber 709, the membrane 708 is displaced at least partially in the direction of the dispensing opening 707, thereby reducing the volume of the storage compartment 710. As a result, the beverage in the storage compartment 710 is pressurized. Accordingly, when the closing device 731 is opened, beverage is forced from the container 701 into the dispensing hose 717. Next, by opening the tap, the beverage can be tapped from the container. The beverage in the storage compartment 710 can be maintained at the required pressure by feeding the pressure medium into the pressure chamber, while the membrane 708 is displaced further. In this manner, the entire storage compartment 710 can be emptied through pressure by the membrane, until the membrane 708 abuts against the inside of the top portion of the wall 703 and the shoulder part 705, covering the dispensing opening 707 (Fig. 10) . In this condition, the volume of the pressure chamber 709 is maximal and the volume of the storage compartment 710 is minimal . Since the pressure in the storage compartment 710 is built up through displacement of the membrane 708 by means of a pressure medium in the pressure chamber 709, the pressure MH CD >, - β r , MH rd Φ 01 A 0 0 0 H Φ A β SH CO CO 00 . directed pressure is exerted on the container wall 703. Because this portion is enclosed by the receiving part 740, this may be of a relatively thin design. As it is, the receiving part 740 will provide the wall 703 with sufficient support during use to prevent damage. In the cover 741, an opening 746 is provided through which, prior to or possibly after the closing of the cover 741, the dispensing hose 717 can be passed, such that the coupling means 716 can be reached from the outside. In the embodiment shown in Fig. 12, a tap 730 is provided on the cover 741, which tap is fitted with counter-coupling means 748 for the coupling means 716. In the embodiment shown, the tap 730 is of the hose cock type. The tap 730 comprises a lever 748 which is connect-ed, via a pivot 749, to an arm 750 extending from the cover 741. Extending obliquely from the pivot 749, on the side directed towards the cover 741, is a pressure arm 751 which is fixedly connected to the lever 748. Transverse to the longitudinal direction of the pressure arm 751 and the arm 750, a pressure roller 752 extends from the free end of the pressure arm 750. Hence, when the lever 748 is pivoted, the pressure roller 752 is moved relative to the arm 750. Provided at the free end of the arm 750 is a bent dispensing tube 753, comprising, at the end thereof which is mounted on the arm 750 and which is located on the side of the pivot 749 remote from the cover 741, the counter-coupling means 754. After the container 701 has been inserted into the tapping device T, the dispensing hose 717 is passed through the cover 741 and placed under the pressure roller 752 on the arm 750, while the coupling means 716 are coupled to the counter- coupling means 754. If the lever 748 is moved into an approximately vertical position, the hose 717 is pressed shut by the pressure roller 752; if the lever 748 is moved into an approximately horizontal position, the hose 717 is released and beverage can be forced from the container, via the hose 717 and the dispensing tube 753, for instance into a glass held underneath the dispensing tube. This tap is described as φ CQ fβ -, β β MH SH Φ A β ε SH A 3 rO A 0 0 A A β 01 SH φ Φ ι 0 00 © MH • 1 rH © β ~ rH ' o SH . -H CQ 0 —0 Φ 0 a 3 r MH z J, Φ rd r-i A CQ S A H a cd υ υ ε -H 6. Φ A A CD A φ C 3 A CQ A 0 Xi A β c Φ rβ MH Φ - CO 0 A β Φ > CQ >ι Φ Φ td A A CQ £ ε Φ β A β Φ A • H rβ a to > υ X H φ 0 Φ r-i CJ SH a β fO -H rd <* > υ ^ Φ Φ φ A A ) rd rH CQ rH M øi ^ ( 0 3 β fC 0 rH 0 -H ε CO 3 υ a H υ -H MH a CQ < rβ β A o A rβ • rH φ CQ rd • Oi ε β a Φ β 0 CO 0 -H CQ 3 A β A CQ -H rβ A -H SH H A β X 3 H β rβ φ CQ re rd re A Φ MH φ CQ Φ ^H 0 ε β rH 3 1 -H & A Φ φ ε υ u SH 01 td rO β 3 β X MH rβ CO -H Φ 3 A CQ a β CQ φ a β rd β SH rd td ε ft A instance covers only the dispensing opening 707 and provides a tampering seal action in a known manner or is designed without tampering seal action. If required, the cap may also be omitted. Many variations hereto are possible. Fig. 9A diagrammatically shows a detail of a closing device 731. This closing device 731 comprises a piston 760 having a cover plate 761 which, in the closing position, sealingly abuts against the dispensing opening 707 at the bottom side. From the cover plate 761, a rod 762 extends through the dispensing opening 707 into the space 716. The rod 762 has a slightly flat section with a shoulder 763 on either side thereof. Provided in the dispensing opening 707 are two grooves 764 capable of receiving the shoulder 763 such that the cover plate 761 covers the dispensing opening 707. The cover plate 761 is biased in this position by a spring 765. If the container is to be opened, the rod 762 is pressed down, in the direction of the bottom 704, and subsequently rotated so that the shoulders 763 are displaced relative to the grooves 764, into the position shown in Fig. 9A in broken lines. This creates an opening 766 along the cover plate 761, through which beverage can flow from the storage compartment 710 towards the dispensing hose 717. In this position, the piston 760 is released, while the shoulders 763 are pressed by the spring 765 against the shoulder part 705 next to the grooves 764. Because the closing device 731 is normally covered by the cap 711, there is no danger of the opening 66 being unintentionally released. In an alternative embodiment, as shown in Fig. 9B, the cap 711 is connected to the container 701 via internal screw thread in a stub 767 extending from the top face 719 and external screw thread on a neck part 768 around the dispensing opening 707, the groove 713 being of such design that a slight vertical movement of the cap 711 relative to the container is possible, while the two screw threads cannot become detached from each other and always sealingly connect Φ rd Φ Φ φ Φ 0 ) CQ MH -. 01 A A β β 0 rH A β -H 00 • A H ε β A Φ SH Φ - O td A CQ ' MH Φ β CO co J Φ H A υ A ft. Φ -i -H A 3 oo o oo β O A CQ -H r- a Vl' Φ A A MH o φ A -H CQ ε 0 A A 0 A φ A A ro A CQ β -H O o 01 fβ opposite, second end extends outside the container 801 and is rotatable in the direction of the arrow R by means of members suitable therefor, for instance an electric motor. Provided in the bottom 804 is a nut 831 capable of cooperating with the screw spindle 830. Upon a rotation of the screw spindle 830 within the nut 831, a vertical movement in the direction of the arrow P of the piston 808 is effected, as a result of which the compartment 809 is enlarged and the compartment 810 is reduced and vice versa. By its first end, the screw spindle 830 is connected to the piston such that the screw spindle can rotate about its longitudinal axis and relative to the piston 808, while the piston cannot move axially relative to the screw spindle 830. Thus, a direct coupling between- the movements of the screw spindle 830 and the piston 808 is created. Fig. 15 diagrammatically shows a further alternative embodiment of a device according to the invention, in particular suitable for use in, for instance, hotels, restaurants, bars, etc. having a relatively limited volume per time unit of beverage to be dispensed, which beverage is to be cooled. Corresponding parts have comparable reference numerals again, preceded by the numeral 9. In this embodiment, the coupling means 918 of the dispensing hose 917 are coupled to a so-called in-line cooler 980, for instance a through- flow heat exchanger 981 communicating with cooling means 982. On the side remote from the coupling means 918, a connecting line 983 connects to the in-line cooling means 980, which further connecting line 983 is connected to a tapping device 930 of, for instance, a type which is known from the hotel and catering industry. In the manner described hereinabove, a pressure source is connected, via a pump 929, to the pressure compartment of the container 901. Beverage to be dispensed from the container 901 is passed through the inline cooler 980 and brought to or maintained at the proper temperature. By means of the in-line cooling means 980, the temperature of the beverage, in particular beer, can for instance be brought to or maintained at between 5 and 9°C, in particular to about 6-7° C, so that even in the case of an uncooled container and relatively long lines 917 and 983, the beverage can be dispensed at an optimal temperature. A strict regulation of the temperature of the beverage in, in particular, the lines 917 and 983 is of particular importance from a hygienic viewpoint. If the container 901 is disposed in a cooler at a relatively high temperature, beverage can nevertheless be dispensed directly and at the proper temperature by a device according to Fig. 15, while after the passage of time, when the beverage in the container 901 has been brought to the proper temperature, the in-line cooling means 980 can be switched off or, if necessary, be kept in use, which is in particular advantageous when the dispensing lines 917, 983 are relatively long. Of course, more or different in-line cooling means 980 can be used as well. The in-line cooling means 980 may be of such design that the beverage to be dispensed directly contacts fixed parts of the cooling means 980, but may also be of such design that for instance the dispensing hose 917 extends therethrough and indirect heat exchange is effected. The cooling efficiency of such last embodiment will be slightly less, yet in terms of hygiene, advantages are achieved thereby. Because the use of a device according to the invention involves a separation between the beverage to be dispensed, in particular beer, and the pressure medium, it is possible to use, without a complicated control for the pressure in the container and the flow rate of the beverage during dispensing, the combination of a cooler in which the container is placed and an in-line cooler. As long as the pressure in the pressure chamber is kept higher than the equilibrium pressure in the beer in the entire temperature range for the beverage in the container (for instance between 5 and 30°C) and kept constant, the in-line cooler 980 can readily be designed so that a constant flow rate of the beverage is obtained independently of the packing 00 A A υ υ -H fβ X 1 H A - Φ SH A cn rd © C φ øi © © 0 ' —0. A Z f υ H t. o LO chamber 992 connects to the connecting line 926. During use, the edges 991 above and below the connecting openings 906 abut against the vertical part 905a of the shoulder part 205, while the edges 991 are elastically deformed to obtain an airtight sealing against the shoulder part 905. During use, the advantage thereby achieved is that by increasing the pressure in the chamber 992, the edges 991 are firmly pressed against the shoulder part 905a, to obtain an even better sealing. As the connecting openings 906 are located adjacent the top end of the container 901, the container may have any length as long as it fits within the receiving part 940, without the height of the connecting opening 907 changing thereby. This offers the advantage that in the same device, containers having a relatively small content (for instance 1.5 liters) as well as containers having a relatively large content (for instance 5 liters or more) can be accommodated. In fact, devices according to the present invention are also particularly suitable for use with containers having a large content (for instance 10, 25 or 50 liters) , which are particularly suitable for uses in hotels, restaurants, cafes, etc . In the embodiment shown in Fig. 16, the storage compartment 910 is formed by a relatively flexible, foil- shaped bag or compressible plastic bottle 908, suspended in, or at least attached adjacent the dispensing opening 907. When the pressure medium is introduced via the feed line 926 and the connecting openings 906, the bag 908 is compressed during use, while displacing the beverage from the storage compartment 910, whereby the pressure space is enlarged. The bag 908 may be connected to the cylindrical longitudinal wall 903 at a number of locations, distributed over its circumference, in such a manner that the bag will be compressed substantially in radial direction, thus ensuring even better that the entire storage compartment 210 will be emptied. Although in the embodiment shown, the beverage container is composed of two parts, it can of course also be A ε Φ β 0 φ ε A Φ φ 00 φ A CQ φ Φ H H H 0 A 01 t rH rH fβ • H A β rβ A CQ A β CQ rβ MH o φ A β r6 CJ 01 β A Φ A A A rO A A CQ •H A φ > φ r A CJ < rO >- CQ β A A oxygen-impermeable construction, so that the wall of the container may be made from a relatively oxygen-permeable plastic, if necessary. Such embodiment may be economically advantageous, because of the use of relatively inexpensive material . Moreover, it is possible to design the bag so as to be double-walled, with the at least one connecting opening 906 being located between the inner and outer bags then present, in the pressure space 911 formed thereinbetween. As a result, during use, the pressure of the pressure medium will substantially be borne by the outer bag, so that the wall of the container may be of a relatively thin and flexible design and whiph involves a relatively great freedom of design as regards- the shape of the container. Figs. 16A-C diagrammatically show three possible embodiments of such double-walled foil bag. Fig. 16A shows a for instance blown inner foil bag 908a surrounded by an outer foil bag 908b. One or the two foil bags 908a, b may in fact be of multilayered construction, depending on the desired barrier properties thereof. The pressure space 911 is formed between the inner bag 908a and the outer bag 908b, around the inner bag 908a. Fig. 16B shows an embodiment wherein the bag 908 is formed from three layers 908c, 908d and 908e, interconnected to form two compartments 910 and 911. When a pressure medium is fed between the first layer 908c and the second layer 908d, the volume of the pressure space 911 will increase while the beverage is forced from the storage compartment 910. In fact, for instance the second layer 908d and the third layer 908e may form part of a tubular foil profile against which the first layer 908c is sealed. Adjacent the bottom side, the three layers are interconnected and may moreover be attached to the container wall or bottom, as a result of which the bag 908 is included in the container in a positionally fixed manner. , Φ MH MH A -. CO SH to H 00 rH 0 01 β 01 0 A A 0 X -rl MH υ β 0 MH υ 0 SH Φ β -H rd A β O υ Φ øi rd SH Φ > Φ A Φ A A CQ Φ H A rd β Φ CQ ■ rl A E H SH Φ β -H rd A β 0 υ φ Oi rd SH r Φ > « Φ A 3 Φ A A to be assembled already before the filling operation, while the tampering seal membrane may be formed integrally with the beverage container. In the wall of the beverage container, deformation zones may be incorporated, for instance facet - shaped, annular or strip-shaped faces which, during use, provide that the beverage container has a preferred direction for compressing under the influence of pressure built up in the pressure chamber. It may thus be effected that the beverage container is compressed in a preferred direction. Further, for instance different parts may be integrated, such as the primary and secondary caps or the first coupling part, the connecting part and the second coupling part. Although only a "tapping device for accommodating one beverage container is shown, embodiments wherein two or more beverage containers are accommodated in the same tapping device, preferably side by side in one or more pressure chambers, are possible as well. In that case, the degree to which each beverage container is emptied will be determined during use by the pressure in the or each pressure chamber and the degree to which beverage is taken from each of the containers . Of course, in addition to or instead of a pressure medium, mechanical pressure means may be used for at least supporting the compression of the beverage container or the displacement of a membrane in a membrane barrel. When an undeformable barred as described is used, the membrane may be of a bag-shaped design and attached to the beverage container, or at least adjacent the neck part thereof. The container 1 may have a different shape, for instance a polygonal section and a convex end, while the cap 11, if any, may moreover have various other shapes. The cap may moreover be secured to the container in various suitable manners . The container may be connectable to a pressure source in another manner, while the pressure source may be designed in any suitable manner. The membrane may be of such elastic design, that in slack condition it extends at a distance from the wall of the container, for instance flat. Moreover, the membrane may be arranged in any desired position, as long as it separates the pressure chamber from the storage compartment. The connecting means for the pressure source and the connecting means for the dispensing means may be arranged in other manners and in different positions, for instance both adjacent the top side of the container, with a channel being provided for feed-through of the pressure medium to the pressure chamber. Such channel may for instance be provided in a receiving part as described. In the specification, beer is mentioned as beverage to be dispensed. It will be understood that all kinds of other beveraqes may be included in the container as well, such as soft dr-inks and other alcoholic beverages. Also, different beverages may be provided in for instance juxtaposed storage compartments in one container. These and many comparable variations are understood to fall within the framework of the invention.

Claims: rO SH 0 A β Φ of the container surrounding the dispensing opening, in particular a neck part thereof. 6. An assembly according to any one of claims 1-4, characterized in that the container is substantially undeformable by the pressure built up in the pressure chamber during use, wherein the pressure chamber is at least partially accommodated in the container, and wherein within the container at least a part which is deformable by the built-up pressure separates a storage compartment for the fluid to be dispensed from the pressure chamber. 7. An assembly according to claim 6, characterized in that the deformable part is membrane-shaped. 8. An assembly according to claim 6, characterized in that the deformable part is bag-shaped or bottle-shaped, at least a collar part of the deformable part being connected to the container, preferably in or adjacent the dispensing opening. 9. An assembly according to any one of claims 6-8, characterized in that in the outer side of the container, at least one passage opening for a pressure fluid is provided, said passage opening connecting the pressure chamber in the container to the environment . 10. An assembly according to claim 9, characterized in that the at least one passage opening is located adjacent the top end of the container, at least spaced from the bottom thereof. 11. An assembly according to claim 5, characterized in that, at least when the dispensing means are opened, the container is deformable, preferably at least substantially entirely compressible, by the pressure built up during use in the pressure chamber, at least the closing part and preferably the fit-on part being at least so undeformable by the built- up pressure that the sealing action thereof is maintained. 12. An assembly according to claim 11, characterized in that the container within the fit-on part is deformable. 13. An assembly according to any one of the preceding claims, characterized in that the container is thin-walled, self-supporting and manufactured from plastic, in particular a thermoplastic polymer, more in particular PEN, preferably a combination of PEN and PET. 14. An assembly according to any one of the preceding claims, characterized in that the container comprises a tubular dispensing means which is in communication or can be brought into communication with the dispensing opening and which is relatively fixedly connected to the container and, during use, prevents contact between the fluid to be dispensed and the further dispensing means. 15. An assembly according to claim 14, characterized in that the tubular dispensing means is at least partially flexible, hose-sKaped, such that it can be elastically pressed shut in a relatively easy manner. 16. An assembly according to claim 14 or 15, characterized in that at least the free end of the tubular dispensing means, during use, extends outside the dispensing device, the dispensing means being at least partially included into a clamping mechanism whereby the passage in the dispensing means can be released or closed as desired, the tapping device being designed so that after use, the dispensing means can be removed from the clamping mechanism and discharged together with the container. 17. An assembly according to any one of claims 14-16, characterized in that the tubular dispensing means comprises an engaging means whereby at least the free end thereof can be moved to a distance from the dispensing opening. 18. An assembly according to any one of the preceding claims, characterized in that in filled condition, prior to its use, the container comprises pierceable tampering seal means in or adjacent the dispensing opening, means being provided for piercing the tampering seal means during or after the creation of an excess pressure in the pressure chamber, said piercing means thereby bringing the inside space of the container into communication with a dispensing channel for the fluid. 19. An assembly according to claim 18 and one of claims 14-17, characterized in that the tubular dispensing means comprises at least the piercing means and the dispensing channel . 20. An assembly according to any one of the preceding claims, characterized in that the container within the tapping device is surrounded, at some distance therefrom, by a wall of the pressure chamber, the closing part, when the pressure chamber is pressureless, being slightly clear from the closing means cooperating therewith, provided in the tapping device, while the closing part, during pressure buildup in the pressure chamber, is moved against the cooperating closing means of the tapping device for further closing- the pressure chamber. 21. An assembly according to claim 20 and one of claims 18 or 19, characterized in that during the movement of the container against the cooperating closing means, the piercing means are forced through the tampering seal means . 22. An assembly according to any one of the preceding claims, characterized in that the tapping device comprises a barrel -shaped first part having a cover part preferably pivotally mounted thereon, the container being positionable approximately vertically into the first part to form the pressure chamber, the cover part being closable over the container and pressure-protection means being provided for preventing the cover part from being opened as long as the pressure in the pressure chamber is higher than approximately the ambient pressure, and the container remaining closed towards the environment until the pressure in the pressure chamber around and/or in the container is for the first time increased to above the ambient pressure. 23. A method for tapping beverage, in particular a carbonated beverage such as beer or carbonated soft drinks, wherein: - the beverage in a closed container is placed in a box- shaped part of a tapping device, the container is provided with a dispensing opening and a closing part with surrounds the dispensing opening at a distance therefrom and which is laid sealingly against the box-shaped part to form a pressure chamber, at least between the container, the inner wall of the box-shaped part and the closing part, a free end of an at least partially relatively flexible, tubular dispensing means, connected to the container adjacent the dispensing opening, is moved to a position outside the tapping device, whereupon a cover part is closed over the container and secured, the part of the tubular dispensing means extending outside- the tapping device is placed in a clamping device whereby the passage in the dispensing means can be opened and closed as desired, the pressure in the pressure chamber is increased by means of pressure means, whereupon the interior of the container is brought into free communication with the environment, at least by means of the clamping device, at least a part of the beverage is discharged through the tubular dispensing means to the environment by reducing at least the beverage-containing part of the container under the influence of the pressure buildup. 24. A method according to claim 23, characterized in that during or prior to the interior of the container being brought into open communication with the environment, antiseptically sealing tampering seal means are pierced by piercing means, preferably by piercing means on the tubular dispensing means and under the influence of the pressure buildup in the pressure chamber. 25. A method according to claim 24, characterized in that during pressure buildup in the chamber, the container is moved relative to the piercing means, such that the piercing means are forced through the tampering seal means. ' n A SH A A A SH β φ Φ ro rd rd β 0 fO 1 r * * or bottle-shaped storage compartment is accommodated which is compressible and is secured at least in or adjacent the dispensing opening of the container, at least the wall of the storage compartment being substantially oxygen- impermeable . 32. A tapping device for use in an assembly according to any one of claims 1-22 or a method according to any one of claims 23-27. 33. Use of a container according to any one of claims 28-31 and/or a tapping device according to claim 28 in an assembly according to any one of claims 1-22 or a method according to any one of claims 23-27. 34. A fit-on part for use in an assembly according to any one of elaims 5-22, a method according to any one of claims 23-27, -in a container according to any one of claims 28-31 or in a tapping device according to claim 32. 35. An assembly for storing and dispensing beer and other, preferably carbonated beverages, preferably according to any one of claims 1-22, comprising a container for the relevant beverage and dispensing means for the beverage, the container comprising separating means separating a storage compartment in the container from a pressure chamber, the dispensing means being connectable to the storage compartment and a pressure source being connectable to the pressure chamber, the arrangement being such that, during use, a pressure medium can be introduced into the pressure chamber by means of the pressure source, so that, when the dispensing means are open, beverage is driven from the storage compartment with at least partial displacement of the separating means and reduction of the storage compartment. 36. An assembly according to claim 35, characterized in that the separating means comprise membrane means, in particular a slightly sheet-shaped membrane. 37. An assembly according to claim 36, characterized in that the membrane is connected to the wall of the container at a distance from the dispensing means, so that when the storage compartment is substantially entirely emptied, the membrane abuts against the inside of the wall of the storage compartment . 38. An assembly according to claim 36 or 37, characterized in that when the volume of the pressure chamber increases, the membrane is slightly elastically stretched. 39. An assembly according to claim 35, characterized in that the separating means comprise piston means. 40. An assembly according to claim 39, characterized in that in the container, guiding means are provided for the piston means, arranged for keeping the piston means in the desired position during the movement thereof . 41. An assembly according to claim 39 or 40, characterized in that the piston means comprise a piston having a top face facing -the dispensing means and adapted to the shape of the inner face in which the dispensing means are accommodated, the arrangement being such that when the piston is moved against the inner face, the volume of the storage compartment is minimal, preferably zero. 42. An assembly according to any one of claims 35-41, characterized in that when the storage compartment is maximally filled, the volume of the pressure chamber is smaller than the volume of the storage compartment, the separating means in aforesaid condition preferably abutting against the inner wall of the pressure chamber. 43. An assembly according to any one of claims 35-42, characterized in that the dispensing means are arranged in a wall part of the container opposite the separating means. 44. An assembly according to any one of claims 35-43, characterized in that the container is detachable from the pressure source and at least a part of the dispensing means, the container being refillable with beverage. 45. An assembly according to any one of claims 35-44, characterized in that the pressure source is arranged for feeding a liquid, in particular water, into the pressure chamber. A 01 1 51. An assembly according to any one of claims 35-50, characterized in that the container comprises a cap which is fixedly connected to the other part of the container, at least a portion of the dispensing means being covered by the cap, the cap having at least one opening which is closed by a cover part, tampering seal means being provided for the cover part relative to the cap, the arrangement being such that the dispensing means covered by the cap can be reached from the outside of the container only after breaking the tampering seal means. 52. An assembly according to claim 51, characterized in that the tampering seal means comprise a number of elements which connect the cover part to the cap. 53. Aru assembly according to any one of claims 35-52, characterized in that the dispensing means comprise an at least partially flexible tube part which is connectable to tapping means . 54. An assembly according to any one of claims 35-53, characterized in that in or adjacent the dispensing means, cooling means are included for cooling beverage during the dispensing thereof. 55. An assembly according to any one of claims 35-54, characterized in that engaging means are provided on the dispensing means, the engaging means comprising at least one face which, during use, is visible on the outside and on which information is provided, in particular information concerning brand and/or content of the container. 56. A container for use in An assembly according to any one of claims 35-55. 57. A method for storing and dispensing beer and other, preferably carbonated beverages, the beverage being stored in a storage compartment, said storage compartment being bounded, on at least one side, by an at least partially flexible wall, in particular a membrane, while on the side facing away from the storage compartment, a pressure chamber is provided and, on a side of the storage compartment remote Φ A

Inventors: TIMMERMANS SJOERD, VAN DER MEER SIETZE, TIMMERMANS, SJOERD, VAN DER MEER, SIETZE
Applicants: HEINEKEN TECH SERVICES, MEER SIETZE V D, TIMMERMANS SJOERD, HEINEKEN TECHNICAL SERVICES B.V., TIMMERMANS, SJOERD, VAN DER MEER, SIETZE
Application year: 1998
Main classification: B67D1
IPC codes: B67D1, B67D5