The invention relates to an exchangeable holder designed to be connected to an apparatus provided with a fluid dispensing device for dispensing at least a first fluid, such as a gas and/or liquid, under pressure to the exchangeable holder for preparing a beverage suitable for consumption, the exchangeable holder being provided with at least a first storage space which is filled with a second fluid such as a concentrate, the holder further being provided with at least a first mixing chamber, at least one outflow opening which is in fluid communication with the first mixing chamber for dispensing the beverage from the first mixing chamber, at least a first fluid communication between the first storage space and the first mixing chamber for dispensing the second fluid to the first mixing chamber, and at least one inlet opening which, in use, is detachably connected to an outlet opening of the fluid dispensing device, for supplying the first fluid to the first mixing chamber, wherein the first storage space forms part, at least partly, of a dosing device designed for supplying the second fluid in a dosed manner from the first storage space to the first mixing chamber, while, in use, the first fluid is also supplied under pressure to the first mixing chamber so that the second fluid and the first fluid mix together for obtaining the beverage which, then, leaves the holder via the outflow opening. The invention also relates to a system for preparing a beverage, provided with such an exchangeable holder and to an apparatus which, in use, cooperates with the holder.
Such a holder, system and apparatus are known from WO 2006/043808.
As the exchangeable holder is an exchangeable holder which, after being used once for preparing a predetermined amount of beverage suitable for consumption, such as a cup of coffee, is removed from the system by a user and ends up in the waste circuit, it is of importance that the holder can be manufactured so as to be compact and in an inexpensive manner.
It is an object of the invention to provide a solution according to which a holder for use in such a system can be manufactured, if desired, so as to be compact, and in an inexpensive manner.
According to the invention, a holder of the initially indicated type is characterized to that end in that the holder is provided with a first wall part and a second wall part extending at least substantially along a same imaginary plane, while the first wall part bounds a first part of the first mixing chamber and the second wall part bounds a first part of the first storage space, the holder further being provided with third wall part bounding a second part of the first mixing chamber and a fourth wall part bounding a second part of the first storage space, while a height of the first mixing chamber in relation to the first wall part is smaller than a height of the first storage space in relation to the second wall part.
As the height of the first mixing chamber in relation to the first wall part is smaller than a height of the first storage space in relation to the second wall part, with the first and second wall part extending at least substantially along the same imaginary plane surface, the holder can be designed to be compact.
The external volume of the holder can then, for instance, be substantially defined by the at least one first storage space. This holds in particular when the first wall part is of elongated design, while a line, perpendicular to a longitudinal direction of the first wall part, through a center of the length of the first wall part in the longitudinal direction of the first wall part, and located in the plane of the first wall part, crosses the second wall part and/or intersects the fourth wall part.
Preferably, it holds that the first mixing chamber is of elongated design. In order to compensate for the smaller greatest width of the first mixing chamber, the mixing chamber can be designed to be higher, without this leading to an essential enlargement of the holder as the height of the first mixing chamber remains smaller than the height mentioned of the first storage space.
The advantages mentioned hereinabove become even more important when the holder is further provided with a second storage space. Here, it preferably holds that the holder is further provided with a second storage space which is filled with a fourth fluid such as a concentrate, and a second fluid communication between the second storage space and the first mixing chamber for dispensing the fourth fluid to the first mixing chamber, the second storage space forming part, at least partly, of a dosing device designed for supplying the second fluid in a dosed manner from the first storage space to the first mixing chamber, while, in use, the first fluid is also supplied, under pressure, to the first mixing chamber so that, on the one side, the second fluid and/or the fourth fluid, and, on the other side, the first fluid mix together for obtaining the beverage which then leaves the holder via the outflow opening, the holder being provided with a fifth wall part extending at least substantially along the imaginary plane surface, while the fifth wall part bounds a first part of the second storage space, the holder further being provided with a sixth wall part bounding a second part of the second storage space, a height of the first mixing chamber in relation to the first wall part being smaller than a height of the second storage space in relation to the fifth wall part. The second fluid may be provided with coffee concentrate while the fourth fluid is provided with milk concentrate so that, for instance, a cappuccino can be prepared.
Here, it preferably holds that the first mixing chamber is situated between the first storage space and the second storage space. The result is that now, the external volume of the holder can be substantially defined by the volume of the first and second storage space. The first mixing chamber can lie within the external contours of the holder, which is defined by the first and second storage space.
If it is desired to provided a system for preparing a beverage utilizing holders provided with only a first storage space as well as holders provided with a first and a second storage space, the holder with the first and second storage space can be designed to be compact as indicated hereinabove, while the holder having only the first storage space can be designed as the holder with the first and second storage space while omitting the second storage space. In other words, the positioning of the first mixing chamber with respect to the first storage space with the holder having only the first storage space can be carried out in the same way as with the holder provided with the first and second storage space, while in particular with this latter holder, great advantages with respect to the compact design of the holder can be achieved when the first mixing chamber is included between the first and second storage space. The holder with only the first storage space is then compatible with the holder provided with the first and second storage space.
It preferably holds for the holder with the first and second storage space, that the first wall part is of elongated design, while a line perpendicular to a longitudinal direction of the first wall part, through a center of the length of the first wall part in the longitudinal direction of the first wall part and located in the plane of the first wall part crosses the fifth wall part and/or intersects the sixth wall part. The heights, widths and distances are external heights, widths and distances of the holder for the purpose of designing the holder compactly.
Also, according to the invention, a system according to claim 34, and an apparatus according to claim 49 and a method according to claim 53 are provided.
Specific embodiments of the invention are laid down in the dependent claims.
In the following, the invention is further elucidated with reference to the schematic Figures in the appended drawing.
a shows an example of an embodiment of a known system;
b shows the system of
c shows the system of
a shows an example of an embodiment of an exchangeable holder according to the invention;
b shows an example of another embodiment of an exchangeable holder according to the invention;
c shows, in perspective view, the holder of
a shows a cross section, in a plane IIIa shown in
b shows a cross section, in a plane IIIb shown in
c shows a cross section, in planes IIIc shown in
Presently, reference is first made to
In
The system is further provided with an apparatus 4 which is provided with, inter alia, a fluid dispensing device 6 which is designed for dispensing, under pressure, at least one amount of at least a first fluid such as a liquid and/or a gas, more particularly such as water and/or steam. In this example, in use, the fluid dispensing device 6 dispenses water.
The exchangeable holder 2 is provided with at least a first storage space 8 which is filled with a second fluid such as a beverage, a concentrate or a powder. In this example, a concentrate for the preparation of coffee is involved. The holder 2 is further provided with at least a first mixing chamber 10 and at least one outflow opening 12 which is in fluid communication with the first mixing chamber 10. The holder 2 is further provided with a fluid communication 14 between the first storage space 8 and the first mixing chamber 10. The holder 2 is further provided with at least one inlet opening 16 which is detachably connected to an outlet opening 18 of the fluid dispensing device 6. In
In this example, the system is further provided with a restriction 20 which is included in a fluid flow path 22 which extends, via the outlet opening 18 of the fluid dispensing device 6, the inlet opening 16 and the first mixing chamber 10, from the fluid dispensing device 6 to the outflow opening 12.
More particularly it hold in this example, that the restriction 20 is included in a fluid flow path 22 which extends, via the outlet opening 18 of the fluid dispensing device 6 and the inlet opening 16 of the exchangeable holder 2, from the fluid dispensing device 6 to the first mixing chamber 10.
The first storage space 8 forms at least a part of a dosing device 24 as will further be set forth hereinafter. In this example, this dosing device 24 is further provided with a needle 24 which, in use, is pierced through a wall of the first storage space 8 for supplying a third fluid to the second fluid in the storage space 8 for dispensing the second fluid in a dosed manner to the first mixing chamber 10. In this example, the dosing device 24 is further provided with a fluid dispensing unit 32 which is connected to the needle 28. The fluid dispensing unit 32 and the needle 28 form part of the dosing means of the apparatus 4. In this example, the fluid dispensing unit 32 is detachably connectable, at least via the needle 28, to the holder 2.
The apparatus 4 is further also provided with a control device 34 for controlling the fluid dispensing device 6 and the fluid dispensing device 32. To control the fluid dispensing device 6 and the fluid dispensing unit 32, the control device 34 generates control signals ŝ which are supplied to the fluid dispensing device 6 and the fluid dispensing unit 32. In this example, the control device 34 is designed for controlling the fluid dispensing device 6 and the fluid dispensing unit 32 independently of each other.
The system 1 described heretofore works as follows. For the purpose of preparing a predetermined amount of beverage suitable for consumption, the exchangeable holder 2 is placed in the apparatus 4. Here, the first storage space 8 of the exchangeable holder 2 is placed under the needle 28. Also, as shown in
As, with the system 1, both the dosing of the concentrate over time and the dosing of the hot water over time can be regulated well, it can be ensured that the concentration of the amount of concentrate in the beverage can be accurately determined. Furthermore, it can be ensured that the beverage which, during its preparation, leaves the outflow opening 12, is of constant quality, i.e., the concentration of the concentrate in the beverage that is dispensed can be kept constant during dispensing, if desired. The fact is that in this example, the flow rate of the water and the flow rate of the concentrate supplied to the first mixing chamber 10 can each, if desired, be controlled independently of each other. Therefore, it holds in this example, that the system 1 is designed such that the fluid dispensing device 6 and the dosing device 24 can supply, independently of each other, the first fluid and the second fluid, respectively, to the first mixing chamber 10. This entails that the size of the flow rate of the first fluid and the period during which the first fluid is dispensed are independent (in this example through control of the control device) of the size of the flow rate of the second fluid and the period during which the second flow rate is dispensed.
It further holds in this example, that the dosing device 24 is a controllable and active dosing device for supplying the second fluid to the first mixing chamber by applying an increased pressure or force to the second fluid. Herein, an active dosing device is understood to mean that the second fluid flows through the fluid communication from the storage space to the first mixing chamber as a result of an excess pressure or force applied on the side of the storage space.
In the example, the system 1 is further provided with an air inlet opening 42. The air inlet opening 42 ensures that air is supplied to the first mixing chamber 10 so that, in use, air is whipped into the beverage for obtaining a beverage with a fine-bubble froth layer. Thus, for instance, a café crème can be obtained. In this example, the air inlet opening 42 is in fluid communication with the first mixing chamber 10 downstream of the restriction 20. In this example, the air inlet opening 42 terminates, via a fluid communication 44, into the fluid flow path 22. In this example it therefore holds, that the air inlet opening 42 and the restriction 20 each form part of the apparatus 4. However, this is not required. It will be clear that the air inlet opening 42 and/or the restriction 20 can form part of the exchangeable holder 2.
After the beverage, in this example coffee with a fine-bubble froth layer, has been prepared, the control device 34 stops the fluid dispensing device 6. The control device 34 also ensures that the third fluid is no longer supplied to the second fluid in the storage space, and that the needle 28 is retracted from the respective wall of the first storage space 8, i.e., in a direction opposite that of the arrow Pa. Here, it may be such that the control device 34 first provides that the dispensing of the second fluid to the first mixing chamber is stopped and that after that, the supply of the first fluid (in this example, water) is stopped. Thus, the risk of the second fluid contaminating, for instance, the restriction 20 is reduced.
c shows a situation where the needle 28 is pierced through a wall of the first storage space 8 and the third fluid is supplied under pressure to the second fluid in the storage space 8. The situation shown occurs at the moment when the control device 34 will stop the supply of hot water to the mixing chamber 10, will no longer effect the supply of the third fluid to the second fluid in the storage space 8, and will effect the retraction of the needle 28 from the respective wall of the storage space 8 so that, thereupon, the holder 2 can be taken from the apparatus 4 again.
After this, a user can remove the exchangeable holder 2 and, if a new amount of beverage is to be prepared, place a new exchangeable holder in the apparatus 4. The new exchangeable holder can be provided with an entirely different type of second fluid such as, for instance, a milk concentrate. When, with the aid of the new exchangeable holder, milk is prepared in a manner comparable to that as described for the preparation of coffee based on coffee concentrate, in the prepared milk, no trace will be found of the previously prepared type of beverage. The fact is that the first mixing chamber 10 forms part of the exchangeable holder and when a new exchangeable holder is placed in the apparatus 4, also, an entirely new and, hence, clean first mixing chamber is placed in the holder. Therefore, contamination cannot be involved.
In the example of
In the example of
As indicated above, for the purpose of the initial description of the system and its operation, the holder 2 is only represented in the
The holder 2 shown in
The blister pack 102 is provided with blister chambers and a covering 199 of the blister chambers.
The blister pack 102 is further provided with the fluid communication seal 138 for bringing the fluid communication 114 into operation through removal of the sealing action of the fluid communication seal 138. In the example shown, the fluid communication seal 138 is a peel seal 138.
The fluid communication 114 is a channel which is not straight in longitudinal direction of the channel. It is for instance shown in
The blister pack 102 is further provided with a chamber 180 which communicates, via the inlet opening 116 with the first mixing chamber 110. Via this chamber 180, the outlet opening 18 of the fluid dispensing device 6 can be connected to the inlet opening 116 with the aid of, for instance, a needle with the outlet opening 18 which pierces through the covering 199 into the chamber 180.
The blister pack 102 is further provided with a blister chamber 186, which is also shown in
Reference is now made to
The holder receiving portion 157 is further provided with further recesses, i.e. a recess 161 for receiving the chamber 180, two recesses 162 for receiving the outflow channels 182, a recess 163 for receiving the peel seal 138 and having it detach under pressure, a recess 164 for receiving the zone 187 and the peel seal 188 and having them detach under pressure, and a recess 165 for receiving the blister chamber 186.
It is noted that in
For preparing a beverage suitable for consumption, the holder 102 shown in
In placed condition, the holder 102 is, in operation, preferably in a position such that the outflow opening(s) 112 are situated on a side facing downward of the first mixing chamber 110. Here, the holder 102 can, for instance, be placed such that the covering 199 of the blister pack 102 is placed vertically. When placing in the holder receiving portion 157, the blister pack 102 may still be placed with the cover 199 of the blister pack 102 horizontally, and then, for bringing the system in the operative condition, the holder receiving portion 157 can be turned such that the blister pack 102 is placed vertically.
In
The above-mentioned correspondence of the contours of the blister chamber receiving recesses with the contours of the blister chambers offers the advantage that in operation, the holder receiving portion 157 contributes to the walls of the blister chambers being held in place when pressure is applied to these walls. This being the case, it is advantageous when parts of the contours of the blister chamber receiving recess 160 of the holder receiving portion 157 correspond at least partly to parts of the contours of the first curvature 171 of the fluid communication 114. It is further advantageous in this respect, when parts of the contours of the blister chamber receiving recess 160 of the holder receiving portion 157 correspond at least partly to parts of the contours of the second curvature 172 of the fluid communication 114 so that the blister chamber recess 160 proceeds at least partly in an S-shape.
Presently, reference is made to
The holder 202 having the two storage spaces 108 and 108B can be used in a system which is provided with a dosing device which is designed for dispensing the second and fourth fluids in a dosed manner to the first mixing chamber from the two different storage spaces. With respect to the example shown in
For preparing a beverage suitable for consumption, also, the holder 202 can be placed on the holder receiving portion 157 of the apparatus 4 shown in
Preferably, the two storage spaces 108 and 108B are situated on opposite sides of the first mixing chamber 110 and, also, the two fluid communications 114 and 114B are situated on opposite sides of the first mixing chamber 110, as is the case in the example shown in
More particularly, the following can be noted here. The holder according to
In particular it holds here that the first wall part 202 is of elongated design while a greatest width b1 of the first wall part, perpendicular to a longitudinal direction 1 of the first wall part (see
In this example, it further holds that the first mixing chamber is of elongated design. As already stated, it further holds that the first wall part 202 is of elongated design, while a line S, perpendicular to a longitudinal direction l of the first mixing chamber 110, which line S further runs through a center m of the length of the first wall part 202 in the longitudinal direction l of the first wall part, and is further located in the plane of the first wall part (in this example the plane 206) crosses the second wall part 204 (see
It further holds that a longitudinal direction of the first mixing chamber (here also indicated with the line l in
As stated, it holds in
It further holds that a line S, perpendicular to a longitudinal direction l of the first wall part, which line also runs through a center m of the length l1 of the first wall part in the longitudinal direction l of the first wall part, and which line is located in the plane of the first wall part 202, crosses the fifth wall part 220. It also holds that this line intersects the sixth wall part 224. The point of intersection is indicated with PB in
It further holds that in
For the example in
It further holds both for the holder according to
It further holds for the embodiment according to
It further holds for the apparatus according to
In
As stated, the fluid communication 114 is a channel which, in longitudinal direction of the channel, has a first curvature 171 in a plane parallel to the covering 199. It is further advantageous when the channel has a second curvature in said longitudinal direction in this plane, indicated with reference numeral 172 in
In order to avoid that the second fluid does not obtain sufficient opportunity to mix with the first fluid in the first mixing chamber 110, it is advantageous that the location where the fluid communication 114 links up with the first mixing chamber is not too close to the location where the outflow channels 182 link up with the first mixing chamber 110. When the first mixing chamber 110 is provided with an air inlet opening for supplying air to the first mixing chamber, so that, in use, air is whipped into the beverage for obtaining a beverage with a fine-bubbled froth layer, it is advantageous that the location where the fluid communication 114 links up with the first mixing chamber is not too close to the air inlet opening, as otherwise, a favourable supply of air can be disturbed. Through the use of the first curvature 171 and the second curvature 172, for these and other reasons, desired connections of the fluid communication 114 to the first mixing chamber 110 can be realized.
It is advantageous when the cross section of a fluid communication is not too large and the length of a fluid communication is not too small. It is preferred that the maximum cross section of a fluid communication varies from, for instance, 1 to 3 mm, more particularly from 1.5 to 2.5 mm. Preferably, the length of a fluid communication varies from, for instance, 2 to 5 cm, more particularly from 3 to 4 cm. Such cross sections, that are not too large and lengths that are not too short of a fluid communication, prevent the storage space from emptying undesirably rapidly when the second fluid is, for instance, a low viscous product. What can be achieved with such cross-sections that are not too great and lengths that are not too short of a fluid communication is, that a fluid communication of a particular size is suitable for use in different holders containing different sorts of second fluids. Here, for such a fluid communication of a specific size, a matching holder receiving recess 160 of the holder receiving portion 157 can be used, so that the holder receiving recess 160 is also suitable for different holders with different sorts of second fluids.
The invention is not limited in any manner to the embodiments outlined hereinabove. For instance, the holder can further be provided between the first mixing chamber 110 and the outflow opening 112 with a second mixing chamber 111. Here, there is a fluid communication between the first mixing chamber and the second mixing chamber, and the two outflow openings are in fluid communication with the second mixing chamber. The concept of the second mixing chamber is described in WO 2006/043808. The second and/or fourth fluids are, for instance, mixable and/or soluble in the first fluid. In the example, the storage spaces mentioned were filled with coffee concentrate and/or milk concentrate. Other fluids, based or not based on concentrate, are also conceivable, for instance, a squash or powder for preparing a lemonade can be considered. The apparatus can further also be provided with additional storage spaces which are filled with, for instance, additives such as, for instance, soluble powders or concentrates. These powders too may be supplied to the first mixing chamber by, for instance, forcing out through a third fluid and/or fifth fluid, or by emptying the respective storage space through squeezing. Here, for instance, flavour enhancers, sugars, cocoa and the like can be involved. Also, milk powder and/or milk creamer can be considered. Generally, it holds that, apart from a liquid such as a concentrate, the second fluid and/or fourth fluid can also be a powder and the like, soluble in the first fluid or mixable with the first fluid, for instance soluble in a liquid such as water. A second and/or fourth fluid in the storage space can also comprise both a concentrate and a powder, in mixed form or not in mixed form. An exchangeable holder can also, instead of one or two storage spaces for the second and fourth fluids, respectively, have more than two storage spaces for fluids. Consequently, the holder can comprise, instead of one or two fluid communications, also more than two fluid communications.
Such variants are each understood to fall within the framework of the invention. The temperature of the first fluid can vary. The first fluid can for instance also consist of water at room temperature, or cold water. The temperature of the first fluid which is supplied to the holder for preparing a beverage can also vary over time.
The volume of a storage space can for instance vary from 5 to 150 ml, more particularly from 6 to 50 ml. A passage opening of the restriction can for instance vary from 0.4 to 1.5 mm, more particularly from 0.6 to 1.3 mm, still more particularly from 0.7 to 0.9 mm. The pressure at which, in use, the liquid dispensing device dispenses the first fluid can vary from 0.6 to 12 bars, more particularly from 0.7 to 2 bars and preferably from 0.9 to 1.5 bars. The period during which the first fluid is supplied to the first mixing chamber for preparing the beverage can vary from 2 to 90 seconds, more particularly from 10 to 50 seconds. The size of the air inlet opening, when this is fully opened, can vary from, for instance, 0.005 to 0.5 mm2. In this example, the holder according to
Number | Date | Country | Kind |
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1031622 | Apr 2006 | NL | national |
1032081 | Jun 2006 | NL | national |
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/NL2007/050165 | 4/19/2007 | WO | 00 | 8/11/2009 |