This Application is the U.S. National Phase of International Application Number PCT/EP2011/069035 filed on Oct. 28, 2011, which claims priority to European Application Number 10189448.3 filed on Oct. 29, 2010.
The present invention relates to a dispensing assembly of a container containing a fluid and a dispensing appliance, wherein the angular orientation of the container about its axial direction when mounted on the dispensing appliance is essential to the functioning of the assembly. In particular, this situation occurs with containers comprising a closure provided with an offset opening with respect to the centroid of the closure's base, such as for closures having at least two openings to be connected to corresponding tubing of the appliance. The assembly of the present invention is particularly suitable for dispensing beverages, such as wine, and more particularly carbonated beverages such as beers and sodas.
Many dispensing containers rely for the dispensing of the liquid contained therein, on a dispensing tube and a gas connection. The dispensing tube permits the liquid contained in the container to flow out thereof, driven by a pressure difference between the interior and the exterior of the container. Said pressure difference may be created by gravity if the closure is located below the liquid level, by an overpressure inside the container, or by vacuum at the outlet of the dispensing tube. The gas connection may serve either to inject pressurized gas into the container to drive the dispensing of liquid, or to allow air into the container to fill the volume of dispensed liquid such as to maintain the pressure relatively constant in the container. The container may comprise a single wall (although the wall can be a laminate) or may comprise several detachable layers, such as in bag-in-containers and bladder-in-containers. Bag-in-containers, also referred to as bag-in-bottles or bag-in-boxes depending on the geometry of the outer vessel, all terms considered herein as being comprised within the meaning of the term bag-in-container, are a family of liquid dispensing packaging consisting of an outer container comprising an opening to the atmosphere—the mouth—and which contains a collapsible inner bag joined to said container and opening to the atmosphere at the region of said mouth. The liquid is contained in the inner bag. The system must comprise at least one vent fluidly connecting the atmosphere to the region between the inner bag and the outer container in order to control the pressure in said region to squeeze the inner bag and thus dispense the liquid contained therein (cf. e.g., WO2008/129018 and GB8925324). Alternatively, in bladder-in-containers, the liquid is contained in the outer container and the inner bag, generally called a bladder, is either inflated to drive the flow of liquid out of the container, or simply put in fluid connection with atmospheric, in order to balance the pressure inside the container (cf. WO9015774, EP1647499, WO2010055057, U.S. Pat. No. 5,499,758, GB9504284, FR2602222, GB8806378). The advantage of bag-in-containers and bladder-in-containers over single wall containers is that the liquid is never in contact with an external gas. The present invention applies to any type of such containers.
The dispensing tube and gas connections often communicate with the interior of the container through the closure thereof, which is therefore provided with at least two openings. Unless the two openings are concentric, the closure is not axisymmetrical. This is one example among others where the position of at least one aperture of the closure is offset with respect to the centroid of the base plane of the closure, wherein the centroid of a geometrical shape corresponds to the centre of gravity of said shape having a uniform density and thickness (cf. e.g., http://en.wikipedia.org/wiki/Centroid).
Some dispensing containers are stand alone, and can be used as such. In some cases, however, the container must be mounted on a dispensing appliance to function properly. The appliance comprises a first portion for holding the container in dispensing position, and a second portion provided with means for creating a fluid communication between the interior of the container and a dispensing tube and a gas connection through the closure of the container. The container may be positioned with the closure located below the level of liquid to drive the flow out of the container by way of gravity, as is the case in many soap dispensers. Soap dispensers, however, rarely require a closure with two openings. Examples of such soap dispensers can be found in U.S. Pat. No. 5,431,309 and WO200761967.
US2009/0242562 discloses a closure comprising a seal indicator providing indication when seal has been achieved between the closure and a container upon relative rotational movement over mating threads, GB1438228. This type of closure is not meant to be used with pressurized containers. GB1438228 discloses a closure unit comprising an overcap with a peripheral skirt and two sealing plugs comprising bores with puncturable membranes, the plugs being integrally moulded to each other and to a washer, thereby forming a gasket which becomes compressed against the lip of a pressurized beer barrel when the skirt is crimped under the lip. In particular, two tongues are crimped with a tool under the lip of the container. Neither the closure, nor the container it is coupled to have any orientation requirement to function properly, as the dispensing does not require to couple the container with closure to a dispensing appliance.
An example of an assembly of a container and a dispensing appliance is given in WO90/15774, wherein the container is a bladder-in-container. In WO90/15774, a dispending end section of the housing is provided with a bladder and a dispensing stem, running through a threaded opening in said end suitable for screwing the container's mouth into position. The bladder and dispensing stem provided in the dispensing end of the appliance are therefore first introduced and fixed into the container, and thereafter the dispensing end and container are positioned in the housing of the appliance. A similar system can be found in U.S. Pat. No. 5,251,787 with a bag-in-container, wherein a dispensing end of the appliance comprises a dispensing stem to be introduced into the bag containing the liquid. Applying a dispensing end of a dispensing appliance with a stem into a container is quite cumbersome and has the great drawback that the container must be opened before mounting on the appliance. This contact of the liquid with ambient may be critical for the quality of some liquids.
For comfort of use, it is preferred that the container may be mounted onto the dispensing appliance in as few moves as possible, and for sensitive liquids, avoiding any contact between the liquid contained in the container with ambient. The latter can be achieved by providing the dispensing tube and gas connection with puncturing means suitable for breaking open a sealed opening. To reduce the number of moves required to mount the container onto the dispensing appliance, one could imagine that the container may be mounted onto the holding portion of an appliance and the dispensing end thereof simply applied on against the closure, with the aim of bringing the interior of the container in fluid communication with a dispensing tube and a gas connection. Now in case the closure is not axisymmetrical because of the presence of at least one offset opening, as is the case with at least two, non concentric openings, the angular position of the container in its axial direction becomes critical, because the dispensing tube and gas connection must be brought in perfect match with the position of the corresponding openings. This is particularly critical when puncturing means are used as forcing the puncturing means against a closure having a wrong angular orientation could damage either the closure or the puncturing means. The user must therefore look carefully that the angular orientation of the container in the holding portion of the appliance is correct before closing the dispensing end of the appliance onto the closure, which is probably more uncomfortable than the solutions proposed in WO90/15774 and U.S. Pat. No. 5,251,787 discussed above.
It is therefore an object of the present invention to provide an assembly considerably simplifying the mounting of a container onto a dispensing appliance comprising at least one duct to be connected in as few moves as possible to an opening provided on the base of a closure, when said opening is offset with respect of the centroid of said closure's base. It is also an object of the present invention to provide such system wherein said mounting does not necessitate contacting the liquid contained in the container with ambient. These and other objects of the invention are presented hereinbelow.
The present invention is defined in the appended independent claims. Preferred embodiments are defined in the dependent claims. In particular, the present invention concerns a closure for closing the aperture of a pressure driven dispensing container, said closure comprising an outer shell comprising:
It is particularly preferred if the closure defined above further comprises a second aperture fluidly connecting the outer surface to the inner surface, and being suitable for receiving a dispensing tube,
The crenellation of the lower rim preferably comprises at least two crenels separated by at least one merlon. The crenellation of the closure preferably has a height comprised between 1 and 20 mm, preferably between 1.5 and 10 mm, more preferably between 2 and 4 mm. The height of the crenellation corresponds to the longest distance separating the lower rim from the top of the crenels. The width in the circumferential direction of any crenel is preferably comprised between 1.5 and 20 mm, more preferably between 2 and 10 mm, most preferably between 4 and 8 mm and the width of any merlon (18B), if any, is preferably comprised between 3 and 15 mm, more preferably between 5 and 10 mm.
In an advantageous embodiment, the at least one merlon is provided with a bar code or any other means of information, comprising information related to the container and/or the liquid contained therein.
The present invention also concerns a container comprising a body, a neck, a mouth, and a closure as defined above closing said mouth. The container is preferably substantially axisymmetrical. In an advantageous embodiment, the container is a bag-in-container.
The present invention also concerns a dispensing appliance suitable for receiving a pressure driven dispensing container as defined above and for dispensing a liquid contained in said container, said dispensing appliance comprising:
In an preferred embodiment of the present invention the dispensing portion of the appliance further comprises a second tube suitable for engaging into a second opening of a closure as defined above with at least two openings, to bring the interior of the container in fluid communication with ambient, whilst the first, offset tube is suitable for connecting the interior of the container to a source of pressurized gas. The first and, in particular, the second tubes of the appliance preferably comprise a valve for controlling the flow of fluid therethrough.
It is further preferred that the crenellation of the closure receiving means of the appliance comprises at least two merlons separated by a crenel. Said crenel could then advantageously be provided with a switch, which pressing closes an electrical circuit allowing the supply of power to the appliance, and/or with means for reading a bar code, which are connected to display means for displaying at least part of the information conveyed in a bar code located in a merlon of the closure of the container, said merlon mating the crenel (18A) of the closure receiving means.
The ends of the first tube and, if any, of the second tube should be sufficiently hard and sharp to penetrate into a respective first opening and second opening, if any, of the closure of a container when mounted onto the appliance, upon moving the dispensing portion of the appliance into its second, dispensing position. This is particularly true when at least one closure is sealed prior to use, and the seal must be pierced open by introducing a tube therethrough.
The present invention also concerns a dispensing assembly comprising:
(a) a container as discussed supra; and
(b) a dispensing appliance as discussed supra,
wherein, the crenellation of the closure receiving means of the appliance mates the crenellation of the closure of the container, such that when the crenellation of the closure is engaged in the crenellation of the receiving means, the first, offset opening, and the second opening, if any, of the closure are in direct engaging relationship with the first tube and second tube, if any, of the appliance.
For a fuller understanding of the nature of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings in which:
The angular orientation, α, in the radial direction of the container upon mounting onto a dispensing appliance becomes critical as soon as there is at least one aperture (15B) which is offset with respect to the centroid of the base of the closure (8). Said offset aperture (15B) is not even necessarily located on the base of the closure, since it could be located on the skirt (111) thereof and thus be offset with respect to said centroid. The closure (8) may comprise one or more additional apertures (10B) which location is not limited. The embodiment of the closure (8) depicted in
The closure depicted in
This type of closures is suitable for being mounted on pressure dispensing containers, which are herein defined as containers which dispensing is driven by creating a higher pressure in the interior of the container compared with the pressure in the exterior thereof. This can be done by injecting a pressurized gas into the container through the first aperture (15B), and the liquid contained therein is thus forced to flow out through the dispensing tube (10A). An alternative way is to create a vacuum in the dispensing tube which drives the flow of liquid out of the container, the first aperture (15B) being in fluid communication with ambient, to compensate the vacuum created in the container by the dispensing of the liquid. Although the closure of the present invention may be used in this latter embodiment, it is preferred to apply it to a pressure dispensing container driven by injection of a pressurized gas. In order to resist the inner pressure within the container, the closure is preferably coupled to the container with snap fitting means (114). The pressurized gas may be injected into the same volume that contains the liquid. The dispensing tube must then comprise a dispensing stem extending deep into the interior of the container (not shown in the Figures). The closure may comprise a sealing member (not shown in the Figures) enclosing both apertures (10B, 15B). Alternatively, the liquid may be contained in a flexible and collapsible bag (1B), and the pressurized gas is then injected into the interfacial space (1C) between the outer layer (1A) of the container and the flexible bag (1B). This solution, called bag-in-container and illustrated in
With a first opening (15B) offset with respect to the centroid of the base of the closure, the closure cannot be axisymmetric. In particular for bag-in-containers, wherein the gas is injected trough a vent communicating with the interface (1C) between inner (1B) and outer (1A) layers of the bag-in-container and located at the edge of the container mouth (5), the gas opening (15B) of the closure is therefore often off-centred, whilst the dispensing opening may be centred. This geometry corresponds to the preferred embodiment represented in
The crenellation of the closure according to the present invention mates a crenellation provided in supporting means (22) of a dispensing appliance designed to receive and support the closure (8) of the container. In
Whether of same or different dimensions, the crenellation may have a maximum height comprised between 1 and 20 mm, preferably between 1.5 and 10 mm, more preferably between 2 and 4 mm. The at least one crenel (22B) may have a width in the circumferential direction comprised between 1.5 and 20 mm, preferably between 3 and 10 mm, more preferably between 4 and 8 mm and any merlon (18B), if any, has width comprised between 3 and 15 mm, preferably between 5 and 10 mm. The upper rim of the crenels may be straight as illustrated in
A crenellated key system between the mouth of a container and the corresponding appliance is often found in the field of ink jet printers. Examples of such systems can be found in EP395197, EP1122078, and EP523915. In such systems, the outer wall of the neck section of an ink container is provided with a pattern of ribs and grooves matching the pattern in a receiving hole of the appliance. These key systems are meant for preventing an ink cartridge to be mounted onto a printer at a wrong position, corresponding to a colour different than the one contained in the cartridge, and are not at all meant for fixing the angular orientation in the axial direction of a container. Furthermore, the ink cartridges must be pressed into the mating opening to break open the sealed aperture, which is quite easy with a cartridge weighing a few hundreds of grams but is quite unthinkable with a 5 l container full of beer. The closure according to the present invention clearly differs from inkjet cartridge key systems in that the lower rim only of the closure is provided with a crenellation extending parallel to the skirt (111) of the closure, as it is to be laid onto a mating crenellation provided on the closure supporting means (22) of the dispensing appliance. The mouth of inkjet cartridges, on the other hand, must comprise a crenellation extending normal to the neck section of the container as it must be inserted and fit into substantially circular openings comprising a mating crenellation. The objective is also quite different, since the closure of the present invention serves to ensure that a pressure dispensing container is laid onto a dispensing appliance with the correct angular orientation, a, to fit a tube (15A) of the appliance (2) into a corresponding gas apertures (15B), which is offset with respect to the centroid of the closure base (110). The key portion in inkjet cartridges discussed above, on the other hand, are meant to prevent mounting a cartridge with the wrong colour into the printer.
The closure (8) of the present invention is mounted on a pressure dispensing container. As discussed above, pressure dispensing containers are not meant to dispense their liquid content by tilting the container until the mouth gets lower than the level of liquid contained therein. In other terms, the driving force for the flow is not gravity and dispensing is not dependent on the orientation of the container and may occur even with the container standing upright in a vertical position with its mouth at the highest position. The container (1) represented in
The container is preferably a bag-in-container comprising a flexible, collapsible inner bag (1B) contained in an outer container (1A), with an interface or gap (1C) between the two layers. Examples of bag-in-containers particularly suitable for the present invention are disclosed in EP2146832, EP2148770, EP2165968, EP2152494, EP2152486, EP2148771. The pressurized gas is to be injected through at least one vent communicating with the interface between inner and outer layers (1B, 1A), said vent being located adjacent to the mouth of the container and parallel to the axis of the container and is in fluid communication with the gas opening (15B) of the closure, which must therefore be located on the outer edge of the closure as illustrated in
Traditional pressure dispensing containers wherein a pressurized gas is injected directly into the volume containing the liquid can also be provided with a closure according to the present invention. Such containers require a dispensing stem in fluid communication with the dispensing opening (10B) and extending into the interior of the container such that the opening of the stem located at the bottom of the container is permanently immersed in the liquid, to ensure proper dispensing even when the container is almost empty. The dispensing stem may be already provided in the closure, so that the same appliance as illustrated in
In a preferred embodiment, the neck is provided with a ledge extending radially over part or the whole circumference of the neck, such that the lower rim (17) of the closure rests adjacent to, or even contacts, said ledge when the closure is in position on the container mouth. When the closure is in place, the ledge closes the open side of any crenel (22B) of the closure, thus defining a blind hole having a perimeter defined on one side by the ledge and for the rest of the perimeter by the geometry of the crenel, and its depth extends until the wall of the neck portion of the container. With such geometry, the accuracy of the engagement of the container in its proper angular orientation is further enhanced.
An embodiment of an appliance according to the present invention and suitable for receiving a container provided with a closure as discussed above is illustrated schematically in
Said dispensing portion (202) is movingly connected to the holding portion (201) to move from a first, loading position, allowing the loading of the container (1) onto the appliance (2), and a second, dispensing position, allowing the dispensing of the liquid contained in the container. The closure supporting means (22) comprise a crenellation comprising at least one merlon (22A) mating the crenellation of the closure (8).
In the embodiment represented in
It is clear that the dispensing portion (202) may comprise more than two tubes to be connected to more than two apertures of the closure (8), as long as the closure is not axisymmetric.
The dispensing portion (202) is movingly connected to the holding portion (201) to move from a first, loading position, allowing the loading of the container (1) onto the appliance (2), and a second, dispensing position, allowing the dispensing of the liquid contained in the container. The embodiment depicted in
The closure supporting means (22) of the appliance of the present invention comprise a crenellation comprising at least one merlon (22A) mating the at least one crenel (22B) of the closure (cf.
The gas tube (15A) is connected to a source of pressurized gas (29) which can be a pump as illustrated in
The holding portion (201) comprises supporting means (22) for receiving and supporting the closure (8) of the container (1) and any other means (21) for holding the container firmly into position. In
In the preferred embodiment illustrated in
In another embodiment, the merlon (18B) of the closure may be provided with a bar code (112B), or any other identification system (112), and the crenel (18A) of the closure supporting means (22) may be provided with means for reading the information applied on the closure's merlon (18B), and a display in the front of the appliance may be provided to clearly identify the type of container and liquid contained therein which is mounted in the appliance. For example, it may identify the mark of a beer, nutritional information such as the alcohol content, sugar content, the year of fabrication, the date of consumption, and the like. Alternatively, the bar code (112B) can be provided at any fixed position on the closure's skirt (111) with respect to the at least one crenel (22B), which ensures that, when the container is properly loaded in the appliance, the bar code (112B) necessarily faces a bar code reader.
Number | Date | Country | Kind |
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10189448 | Oct 2010 | EP | regional |
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/EP2011/069035 | 10/28/2011 | WO | 00 | 5/2/2013 |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO2012/056017 | 5/3/2012 | WO | A |
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Number | Date | Country | |
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20130221029 A1 | Aug 2013 | US |