Abstract:
A drinking bottle ( 100 ) having at east one liquid reservoir ( 120, 140 ), at least one replaceable substrate ampoule ( 200 ) and means for breaking a liquid proof seal ( 206 ) between the substrate ampoule ( 200 ) and the liquid reservoir. The substrate ampoule ( 200 ) comprises a drinking tube ( 210 ) with a distal drinking nipple ( 211 ), where the drinking tube ( 210 ) is disposed axially displaceable in relation to the ampoule ( 200 ) between an inner position where liquid cannot flow from the liquid reservoir ( 120, 140 ) to the interior of the drinking tube ( 210 ), and an outer position where liquid can flow from the liquid reservoir ( 120, 140 ) to the interior of the drinking tube ( 210 ). The drinking bottle ( 100 ) makes t possible to bring along several substrate ampoules ( 200 ) with various contents that can be mixed with liquid from the liquid reservoir ( 120, 140 ). The bottle can also provide doses of liquid. As the drinking tube ( 210 ) is part of the ampoule ( 200 ), problems with cleaning a drinking tube with a drinking valve are avoided. Applications include drinks for sports, administration and dosage of medication etc.

Description:
BACKGROUND 
       [0001]    1. Field of the invention 
         [0002]    This invention concerns a drinking bottle with replaceable ampoules. 
         [0003]    2. Prior and related art 
         [0004]    It is sometimes desirable to mix a powder or liquid concentrate in a liquid. Examples include, but are not limited to, salts, glucose, proteins etc. in a sports drink, medicine in water, medicine in medicine, chocolate in milk, taste additives and/or alcohol in a drink, etc. WO 2008/102981 A2 and WO 2007/134392 A2 shows examples on how a predetermined amount substrate or concentrate can be contained and sealed in a bottle, i.e. in a ‘substrate ampoule’ without fluid connection to a volume of liquid in the bottle. The seal can be broken immediately before use by a relative motion between the bottle and the ‘ampoule’ or substrate chamber. When the seal is broken, the substrate is mixed into a known volume of liquid. The mixture thereby gets a known concentration and can be consumed. 
         [0005]    For sports and other physical activity it is advantageous to add different substrates in different concentrations depending on activity. For example, there may be a need for different concentrations of sugar and salts during training than during a competition or restitution. In such cases, it is desirable to have several premeasured substrate doses that can be mixed into known volumes of liquid. 
         [0006]    Additionally, for a number of sports activities it is in addition advantageous to be able to administer the amount of liquid. For example, it is advantageous to be able to drink a known amount of liquid with a known content at known intervals in marathon races, bicycle competitions, cross country skiing competitions and other endurance sports. 
         [0007]    Further, during physical activities it is advantageous to use bottles with a drinking valve, hereinafter ‘drinking bottles’ for simplicity. Such bottles have a drinking nipple that can be pulled out axially along the main axis of the bottle using the teeth and one hand. When the drinking nipple is pulled out, two concentric tubes are displaced axially so that radially extending openings in the tubes become aligned and opens for a flow of liquid from the interior of the bottle to the drinking nipple. The bottle is closed by pushing the drinking nipple back to its initial position. 
         [0008]    One problem with such known drinking bottles is that they have one chamber, and thus in principle can contain one liquid mixture at a time. This mixture can in principle be replaced with a premixed drink when required. In this case, the user must bring along a number of premixed mixtures if he or she desires different drinks adapted to the boy&#39;s needs e.g. before, during and after training, before, during and after a competition, etc. Alternatively, the user can bring along a number of bags of powder and mix the correct bag for each purpose in water before use. If the amount of powder or concentrate is not adapted to the volume of the drinking bottle, the powder or concentrate must also be weighed or dosed before use in order to obtain desired concentration of the different substances. 
         [0009]    Hence, it is desirable to combine the said ampoules containing a predetermined substrate with a drinking bottle of the type with a pull-out drinking nipple. 
         [0010]    U.S. Pat. No. 7,150,369 B1 describes a baby bottle with two chambers, wherein the first chamber is a conventional bottle with a reservoir of liquid and the second chamber contains breast-milk substitute or substrate. The substrate chamber is screwed onto the top of the bottle, and a conventional cap with a baby nipple is in turn screwed onto the substrate chamber. A valve between the reservoir of liquid and the substrate chamber controls the amount of liquid that is being let into the substrate chamber. This patent thus combine a substrate chamber and a reservoir of liquid, but it does not satisfy the need for several ampoules with different substrates or the need for administering doses of liquid. 
         [0011]    Another problem with known drinking bottles of the type with a pull-out drinking nipple is cleaning of the drinking tube. The drinking valve comprises, as mentioned above, typically two concentric plastic tubes that are displaced relative to each other by an axial motion. This drinking valve is typically permanently disposed on a threaded cap which is unscrewed whenever the bottle is to be filled. 
         [0012]    and the same drinking tube is thus used in essentially the entire lifetime of the bottle. The annular space between the tubes is difficult to access for cleaning, but can give good conditions for growth for algae, bacteria, fungi and other microorganisms, which have an abundant access to water, minerals, glucose and other nutrients from the drink(s) that are, or have been, in the bottle. 
         [0013]    There are also known ampoules containing filters and/or other means to remove microorganisms and contamination from water. In some contexts it will be desirable to use such an ampoule in combination with a reservoir of liquid in order to avoid infections and/or poisoning. It should be understood that ‘substrate’ here and in the claims is meant to comprise filters and/or other means for water purification for such ampoules. 
         [0014]    One problem intended to be solved by the present invention is thus to provide an improved drinking bottle where different prescriptions can be provided for different needs. 
         [0015]    A second problem intended to be solved by the invention is a need for administering an amount of liquid to the user. 
         [0016]    A third problem intended to be solved is to provide a drinking bottle with the advantages of the bottles from prior art, but having reduced requirements for cleaning drinking tubes. 
         [0017]    A fourth problem intended to be solved it to offer the user a drink with desired quality, both regarding concentration of contents in the drink and with respect to absence of microorganisms and other contamination. 
       SUMMARY OF THE INVENTION 
       [0018]    These problems are solved according to the invention by providing a drinking bottle having at east one liquid reservoir, at least one replaceable substrate ampoule and means for breaking a liquid proof seal between the substrate ampoule and the liquid reservoir, distinguished in that the substrate ampoule comprises a drinking tube with a distal drinking nipple, where the drinking tube is disposed axially displaceable in relation to the ampoule between an inner position where liquid cannot flow from the liquid reservoir to the interior of the drinking tube, and an outer position where liquid can flow from the liquid reservoir to the interior of the drinking tube. 
         [0019]    The invention also comprises a method for providing a liquid with desired quality in a drinking bottle for consumption, distinguished by disposing at least one replaceable substrate ampoule in the drinking bottle, filling at least one liquid reservoir with a desired liquid, opening a seal between a substrate ampoule and the liquid reservoir and pulling a drinking tube out of the ampoule. 
         [0020]    The substrate ampoule can contain additives to be mixed in a liquid to a known concentration or a filter and/or other water purification means. The bottle can advantageously comprise a top part with room for several replaceable ampoules that can be opened towards a mixing chamber one after another. The bottle can also comprise several reservoir chambers for dosing amounts of liquid or for different liquids. As the drinking tube is part of a replaceable ampoule the problems of cleaning a permanent drinking tube are avoided. 
         [0021]    Other features and advantages of the invention are disclosed by the accompanying claims. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0022]    The invention will be described in detail in the following with reference to the accompanying drawings, where similar reference numerals denote elements with same or similar function, and wherein: 
           [0023]      FIG. 1  is a longitudinal section through a first embodiment of the drinking bottle; 
           [0024]      FIG. 2  shows the drinking bottle in  FIG. 1  viewed from above; 
           [0025]      FIG. 3  illustrates a replaceable substrate ampoule according to the invention: 
           [0026]      FIG. 4  is a longitudinal section through a second embodiment of the drinking bottle; 
           [0027]      FIG. 5  shows the drinking bottle in  FIG. 4  viewed from above; 
           [0028]      FIG. 6  is a cross section through the bottle at line VI-VI on  FIG. 4 ; 
           [0029]      FIG. 7  shows a section through the lower part of the bottle in  FIG. 4  with the bottom rotated 90°; 
           [0030]      FIG. 8  is a cross section through the bottle at line VIII-VIII on  FIG. 7 ; 
           [0031]      FIG. 9  is a longitudinal section through a third embodiment of the drinking bottle; 
           [0032]      FIGS. 10   a  and  b  are schematic views of a first check valve; 
           [0033]      FIGS. 11   a  and  b  are schematic views of a second check valve; 
           [0034]      FIGS. 12   a - d  shows a fourth embodiment of the drinking bottle; 
           [0035]      FIGS. 13   a - f  illustrate a method for use of the drinking bottle in  FIG. 4 : 
           [0036]      FIG. 14  is a section through a preferred embodiment of the ampoule; 
           [0037]      FIGS. 15   a - b  shows the ampoule in  FIG. 14  during filling of substrate; 
           [0038]      FIGS. 16   a - c  illustrates an ampoule ready for deployment in a drinking bottle; 
           [0039]      FIG. 17  shows the ampoule in  FIGS. 14-16  with extended drinking tube. 
       
    
    
     DETAILED DESCRIPTION 
       [0040]    The figures are schematic views, and numerous details are omitted for the sake of clarity. 
         [0041]    The bottle  100  can advantageously be manufactured from a form stable thermoplastic which is easily moulded and welded, and which does not easily break or deform during use, e.g. polypropylene (PP). Alternatively, other materials can be used when it is more suitable for the intended use, e.g. metal, glass and/or other materials. Other suitable materials comprise aluminium and aluminium alloys which are relatively simple to extrude. 
         [0042]    Similarly, a form stable thermoplastic is preferred for the main body of the replaceable ampoule. PP combined with thermoplastic elastomers (TPE) are preferred as disclosed in greater detail below. Such plastic ampoules can be recycled after use as other plastic waste. Alternatively, an ampoule with medication can be made of glass, whereas a variety of the ampoule for sports use can be made from cardboard. A third variety can be made of metal and contain a filter for water purification. Other choices of material and other contents in the ampoules can be imagined, but are not described in detail herein. 
         [0043]    Here, a bottle and ampoule of PP and TPE are described sufficiently to enable one skilled in the art to exercise the invention. However, other materials can be employed as disclosed above. It is left to the skilled person to choose materials, and to assemble the bottle and ampoule in a suitable manner depending on choice of material. 
         [0044]      FIG. 1  shows a first embodiment of a drinking bottle, generally indicated by  100 . The drinking bottle has a body  101  with one or more reservoir chambers  120 .  120   a  and a top part  150  with a mixing chamber  140 . The chambers  120  and  140  are collectively denoted ‘liquid reservoirs’ in the following and in the claims. The mixing chamber  140  is in  FIG. 1  disposed within the top part  150  so that the reservoir chambers  120 ,  120   a  in the main part of the bottle can be filled to the top before the top part  150  with mixing chamber  140  is screwed onto the bottle. Thus, when the top part  150  is screwed onto the bottle, the mixing chamber contains air. The mixing chamber  140  has a volume corresponding to the contents of a replaceable substrate ampoule  200  with an integrated drinking tube  210 . A seal at the opening  205  prevents contact between the content of the ampoule and the content of liquid reservoirs  120 ,  140  until the seal is broken. 
         [0045]    In a preferred embodiment the seal is broken by moving a part of the ampoule, e.g. the drinking tube, relative to the liquid reservoir as disclosed in greater detail below. Once the seal is broken, the substrate can flow from the ampoule  200  to the mixing chamber  140 . In the embodiment on  FIG. 1 , the air from the mixing chamber  140  can replace the substrate from the ampoule  200 , and it is hence presupposed that the opening between the ampoule  200  and the mixing chamber  140  allows air to flow into the ampoule when the seal is broken. 
         [0046]    Liquid from the reservoir chamber  120  can be let into the mixing chamber  140  through an opening that, if desirable, can be provided with a check valve (not shown) Such a valve can allow liquid to flow from the reservoir chamber  120  to the mixing chamber  140 , and prevent liquid from flowing back. Thereby, mixing chamber  140  can be used to measure an amount of liquid and to mix a liquid with desired concentration of the substrate from the ampoule  200 . The mixed liquid can then be conducted from the mixing chamber  140  through a drinking valve to the interior of drinking tube  210  and be consumed. 
         [0047]    It is to be understood that the content from substrate ampoule  200  alternatively can be let into another liquid reservoir, e.g. reservoir chamber  120  or  120   a  in  FIG. 1 , and that one still obtains a known amount of liquid with a known concentration. This is described in greater detail in connection with  FIGS. 4-8  below. The ampoule  200  is also described in greater detail below. 
         [0048]      FIG. 2  shows the drinking bottle in  FIG. 1  seen from above. Line I-I in  FIG. 2  indicates where the longitudinal section in  FIG. 1  is done. The top part  150  of the bottle has room for several replaceable ampoules  200 , which advantageously can be shaped as pie slices such as indicated by crossing dotted lines through the centre of the circle illustrating the bottle viewed from above. The replaceable substrate ampoules are preferably sealed or covered on their topmost sides before use. This is illustrated by rendering the ampoules not in use by dotted lines. The ampoule at the right hand side, which is shown by solid lines in  FIG. 2 , corresponds to the ampoule  200  in  FIG. 1  where the drinking tube  210  is pulled out. This ampoule has a flexible bellow  220  attached to the drinking tube  210  which prevents liquid from passing on the outside of the drinking tube  210 , and which prevents contamination from entering the bottle. The top part  150  is rotatable disposed on the body  101  of the bottle, so that the ampoules  200  can be rotated into position over an opening in the mixing chamber  140  in sequence. 
         [0049]      FIG. 3  is a perspective view of a substrate ampoule  200  having a firm shell  201 , pulled out drinking tube  210  and an elastic bellow  220 . An opening towards the liquid reservoir is disposed in the bottom of the ampoule, and is not shown in the figure. The hole  207  is used to fill substrate during production. The drinking nipple  211  on the distal end of the drinking tube  210  can, if desirable, be made of or lined with a softer elastomer that feels more comfortable in contact with the teeth than relatively harder PP. If price is at a premium, it will be less expensive to manufacture the drinking nipple from the same material as the drinking tube, e.g. PP. 
         [0050]      FIG. 4  shows an embodiment of the bottle  100  wherein the mixing chamber  140  is disposed within the body  101  of the bottle, and wherein more details are shown. A bottom part  110  is rotatable disposed in the bottom of the bottle. The bottom part  110  has a channel  130  with a chamber valve  135 . The channel  130  extends between the reservoir chamber  120  and the mixing chamber  140 . When the channel  130  and chamber valve  135  are open, as shown in  FIG. 4 , water can flow from the reservoir chamber  120  to the mixing chamber  140 . Water leaving the reservoir chamber  120  is in this case replaced with air entering the reservoir chamber  120  through a first air inlet valve  125 . The valve  125  must be capable of letting in air from the surroundings, and should prevent liquid from the reservoir chamber  120  from flowing out through the valve  125 . The air inlet valve  125  in the reservoir chamber  120  can be a check valve of any type known in the art, e.g. an elastic sheet or membrane partly attached to the inside of an opening in the body  101  similar to the valve  147  illustrated in the  FIGS. 11   a  and  b  below. 
         [0051]    The mixing chamber  140  is in a similar manner provided with a second air inlet valve  145  capable of letting in air while the user drinks liquid from the mixing chamber  140  through a drinking tube  210 , and an air outlet valve  147  capable of letting out air when liquid is transferred from the reservoir chamber  120 . The valves  145  and  147  can also be of any suitable type capable of letting out air when the user drinks mixed liquid from the mixing chamber  140  and lets out air when liquid is transferred from the liquid reservoir  120  to the mixing chamber  140 , and which prevents liquid from leaving unintentionally. See e.g. the description of valve  125  above and the  FIGS. 11   a  and  11   b . The air outlet valve  147  can additionally be connected to a water trap or other known device preventing liquid from leaving, but which allows air or gas to pass through. If an elastic sheet contacts the liquid in chambers  120  and/or  140 , the sheet must of course be made of a material that does not add taste or smell, and which does not contaminate the contents in other ways. 
         [0052]    The mixing chamber  140  is further provided with a receiving unit  108  for an ampoule  200 . In the preferred embodiment, the sealing between the ampoule  200  and the mixing chamber  140  is an integrated part of the ampoule  200 . The receiving device can in this embodiment be a hole. Alternatively, the receiving device must be capable of preventing the concentrate in the ampoule  200  from flowing out, or is unintentionally mixed in the liquid from the reservoir chamber  120 . 
         [0053]    A drink or liquid containing certain substances with predetermined concentrations hence can be provided by mixing a suitable concentrate from the ampoule  200  with pure water or another known solvent from the reservoir chamber  120  in the mixing chamber  140 . The blend or mixture can then be drunk from the mixing chamber  140  through the drinking tube  210 . In order to prevent liquid from unintentionally flowing out through the drinking tube  210 , e.g. when the concentrate from the ampoule  200  is mixed with liquid from the reservoir chamber  120  or when the bottle is agitated during use, the drinking tube is provided with a drinking valve. The drinking valve comprises two concentric tubes, of which at least one has radially extending openings as described above. The drinking tube  210  is disposed on an ampoule  200  as described below. 
         [0054]      FIG. 5  is a view of the embodiment in  FIG. 4  seen from above, where ampoules  200 ,  200   a  and  200   b  are intermediately stored in the top part  150 , and corresponds to  FIG. 2 . The ampoules can have the same or different contents, e.g. for use before, under and after training. The top part can also have storage rooms for more or fewer ampoules  200 , and one or more storage rooms can be empty. The top part  150  can, if desirous, be provided with a lid  151 , e.g. as shown in  FIGS. 12 and 13 , and the top part  150  in  FIG. 5  is not necessarily rotatable as described in connection with  FIG. 2 . 
         [0055]    A receiving device  108  which can selectively be fluidly connected with the interior of an ampoule  200  is preferably disposed near the bottom of at least one such room for ampoule(s)  200 . The meaning of ‘selective fluid connection’ as used herein, is that the ampoule can be placed over the receiving device  108  and remain intact for a period. The fluid connection is only established when the user wants to, and can be established by e.g. pressing or screwing the ampoule into position such that a tip or tube penetrates a membrane. Alternative embodiments can comprise a card board or aluminium foil which is torn away from an opening or the like, and will be known to one skilled in the art. It should be possible to close the fluid connection between the mixing chamber and the interior of the ampoule when ampoule  200  is changed. The receiving device  108  may for this purpose be provided with a check valve, e.g. similar to the one shown in  FIGS. 10   a  and  b . In such an embodiment a tip will typically push in the ball  133  when the ampoule  200  is in position and a spring  137  push the ball against a valve seat  131  so that the ball  133  seals when the ampoule  200  is removed from he holder or receiving device  108  and the said tip hence is retracted. 
         [0056]    In some embodiments, a seal between the ampoule  200  and the mixing chamber  140  can be broken when the drinking tube  210  is pulled out. If the drinking tube is provided with a drinking valve comprising an axially displaceable sleeve as described above, the drinking tube should be pushed back while the bottle is shaken or agitated in order to prevent fluid from the mixing chamber  140  to flow unintentionally out through the drinking tube  210 . In other words, the mixing chamber can selectively be fluidly connected to a drinking tube  210  via a drinking valve  202 , such that the drinking valve  202  prevents liquid, concentrate or powder from leaving y\the mixing chamber unintentionally when the bottle is agitated in order to mix concentrate and liquid from the reservoir chamber  120 , or when the bottle  100  is agitated while the user is in physical activity and brings along the bottle. 
         [0057]    The top part  150  can be rotatable attached to the body  101  so that the two parts can be rotated relative to each other about the main axis of the body or bottle. The user can then rotate a new ampoule  200  in position over a receiving device  108  without having to open a top lid  151  or taking substrate ampoule(s)  200 ,  200   a  out of their respective storage rooms and/or the receiving device  108  such as described in connection with  FIG. 5  above. Such an embodiment can facilitate replacement of an ampoule  200  to a new ampoule  200   a . In an embodiment with rotatable top part  150 , as shown in  FIG. 2 , it will be advantageous to design the said storage rooms in the top pert  150  such that the bottom of the said storage rooms is comprised by a lid over the reservoir chamber  120  and the mixing chamber  140 . The ampoule can thereby be rotated over the receiving device  108  over the mixing chamber  140  in turn, and be rotated away from the receiving device  108  when the contents of the ampoule is emptied into the mixing chamber  140 . 
         [0058]      FIG. 6  shows a cross section of the bottle along the line VI-VI in  FIG. 4 . In  FIGS. 4 and 6  the channel  130  forms a fluid connection between an opening  121  in the bottom of the reservoir chamber  120  and an opening  141  in the bottom of the mixing chamber  140 . The openings  121  and  141  are fro the sake of clarity shown as circular holes having the same diameter as the channel  130 , but both the holes  121 ,  141  and the channel  130  can of course be shaped differently. In the channel  130  on  FIGS. 4 ,  6  and  9 , a check valve  135  is disposed to ensure liquid flow from the reservoir chamber  120  to the mixing chamber  140 , but not in the opposite direction. The  FIGS. 13   a - f  shows an embodiment without a check valve in the channel  130 . In this embodiment, the channel  130  must be opened and closed manually before and after the mixing chamber  140  is filled with liquid from the reservoir chamber  120 . 
         [0059]    It should be understood that the channel  130  alternatively could be a part of the body  101  and that a rotatable bottom part  110  can have plates or other means capable of closing the fluid connection through the channel  130 . In both cases, a rotatable bottom part  110  is used to close the channel manually. 
         [0060]    In the embodiment shown in  FIGS. 4 and 6 , the valve  135  is a loose ball within a cylindrical channel chamber coaxial with the channel  130 . The channel chamber in  FIG. 4  has a greater diameter than the channel  130 . The channel  130  thus forms two circular openings in the end walls of the chamber. The first opening, leading to the reservoir chamber  120 , is open and can form a valve seat for the ball. When the bottle  100  is shaken, the ball will thereby be able to seal against this first opening, and prevent flow of liquid from the mixing chamber  140  past the ball into the channel  130  towards the reservoir chamber  120 . The other opening, in the opposite end of the channel chamber, leads into the channel in the direction towards the mixing chamber  140 . This second opening is covered with a grid or the like, preventing the ball from closing the opening and yet allowing fluid to flow past. When the bottle is agitated or inclined, liquid can thus flow from the reservoir chamber  120  to the mixing chamber  140 , but not in the opposite direction. However, when the bottle is at rest, liquid can flow in both direction through the channel  130  between the reservoir chamber  120  and the mixing chamber  140 . In order to prevent already mixed liquid from flowing from the mixing chamber  140  to the reservoir chamber  120 , the channel  130  must be manually closable in this embodiment. An alternative check valve with a spring biased ball is described in greater detail in connection with the  FIGS. 9 and 10  below. 
         [0061]      FIG. 7  is a section along the line VII-VII on  FIG. 8 , and  FIG. 8  is a cross section along the line VIII-VIII on  FIG. 7 .  FIGS. 7 and 8  illustrate that the bottom part  110  in one embodiment can be rotated so that the channel  130  no longer connects the opening  121  in the reservoir chamber  120  with the opening  141  in the mixing chamber  140 . A rotatable bottom part  110  as shown in the  FIGS. 7 and 8  thereby closes the channel  130 , and can be regarded as a second chamber valve closing the fluid flow through the channel  130  between the two chambers  120  and  140 . If a first chamber valve, e.g. the check valve  135  described above, does not seal adequately, a second chamber valve can hence be provided for permanently or manually closing the channel  130  between the chambers  120  and  140 . Embodiments with several liquid reservoirs, e.g. a reservoir chamber  120  and a mixing chamber  140 , thus advantageously have at least one chamber valve in order to ensure that already mixed drinking liquid from the mixing chamber  140  is mixed with water from the reservoir chamber  120 . This at least one chamber valve can be a check valve  135  and/or a manual valve such as the rotatable bottom part  110  opening and closing the fluid connection between the reservoir chamber  120  and the mixing chamber  140 . 
         [0062]      FIG. 9  shows the lower part of an alternative embodiment of the drinking bottle  100 , in which a check valve  135  with a biased ball closes the channel  130 . A schematic view of the check valve  135  is shown in  FIGS. 10   a  and  b . In  FIG. 9 , the check valve  135  prevents liquid from flowing from the mixing chamber  130  to the reservoir chamber  120 , such that the can be a difference in the liquid levels, indicated by Δh, even when the bottle is at rest. In this embodiment it is thus not necessary to provide a rotatable bottom part  110  or second chamber valve in order to prevent liquid from flowing back from the mixing chamber. The embodiment shown in  FIG. 9  can be manufactured with a flexible chamber  120 . This flexibility can be provided by manufacturing a thinner chamber wall in the embodiment made of PP. When the chamber wall is pressed in, e.g. as indicated by the broken line  122 , the pressure within chamber  120  is increased. If the resulting force F due to a positive difference of pressure between the chambers  120  and  140  (see  FIGS. 10   a  and  b ) is greater than the spring force F s  in the check valve  135 , liquid will flow from the reservoir chamber  120  through the channel  130  to the mixing chamber  140 . The air that is thereby displaced from the mixing chamber  140 , is let out through an air outlet valve  147 , for example of the type shown in  FIGS. 11   a  and  b , which in turn can be connected to a convoluted passage, a water trap or other known device which prevents liquid from leaving the chamber  140  together with the displaced air. 
         [0063]      FIG. 10   a  is a detailed schematic view of the channel valve  135  in  FIG. 6 . The main parts are a ball  133  biased by a spring  137  against a seat  131  in the direction from the mixing chamber  140  towards the reservoir chamber  120 . The seat  131  is in this embodiment formed by the outlet of channel  130  in an end wall of a concentric channel chamber of the type described above in connection with  FIG. 4 . The force from the spring  137  on the ball  133  follows from Hooke&#39;s law: 
         [0000]        F   s   =−kx    (1)
 
         [0000]    where:
   the negative sign means that the force works from right to left in the  FIGS. 7   a  and  7   b,      k is the spring constant, and   x is compression of the spring, which if desired can be regulated by moving a locking ring  139  to the right or left on the figure.   
 
         [0067]    In the springless variety of chamber valve  135  shown in  FIGS. 4 and 6 , the spring  137  would be absent from  FIG. 10   a , and reference number  139  in  FIG. 10   a  would indicate a grid preventing the opening towards the mixing chamber from functioning similar to the valve seat  131 , and thus preventing liquid from flowing towards the mixing chamber  140 . 
         [0068]    In  FIG. 9 , a pressure difference is shown between the chambers  120  and  140 : 
         [0000]      Δ p=ρg Δh    (2)
 
         [0000]    where the pressure difference Δp&gt;0 when the pressure in the reservoir chamber  120  is greater than the pressure in the mixing chamber  140 ,
   ρ is the density of water (1000 kg/m 3 ),   g is the acceleration of gravity (9,81 m/s 2 ), and   Δh is the positive difference of levels shown in  FIG. 6 .   
 
         [0072]    Such a pressure difference can be maintained when the force from the spring on the ball is greater than the force resulting from the pressure difference working on the working area of the valve seat. 
         [0073]    The valve  135  in  FIG. 9  is depicted in greater detail in  FIG. 10   a . If the valve seat  131  in  FIG. 10   a  has a circular opening with radius r, the pressure difference Δp works on an area A=πr 2 . This gives a net force F from the left towards the right on the ball  133  as shown in  FIG. 10   b:    
         [0000]        F=Δp·πr   2    (3)
 
         [0000]    Hence, in order to achieve a liquid flow from the reservoir chamber  120  to the mixing chamber  140 , must F &gt;−F s , i.e. 
         [0000]      ρ gΔh·πr   2   &gt;−F   s    (4)
 
         [0000]    From the discussion above, it follows:
   a) If the channel  130  is not provided with a chamber valve  135 , the contents of mixing chamber  140  is able to flow into the reservoir chamber  120  and produce unintentional mixing of substrate/concentrate and water.   b) If the chamber valve  135  is provided with a spring  137  having a spring force t F s &gt;0, the spring force can be overcome by inclining the bottle unless the spring force is too large. This is an embodiment requiring the channel  130  between the chambers  120  and  140  to be closed by other means when the bottle is in use. See e.g.  FIGS. 4-8 , where the channel can be closed by rotating the bottom part  110  so that the end points of the channels do not align with one or both openings  121  and  141  in the chambers  120  and  140  respectively.   c) An increased pressure difference Δp can be provided by reducing the volume of a flexible reservoir chamber  120 , e.g. as indicated by the broken line  122  in  FIG. 9 . From the equations  1  and  3  above, it is possible to adapt k, x and r such that liquid can be pumped from the reservoir chamber  120  to the mixing chamber  140 . It is of course also possible to provide a rotatable bottom part  110  of the type described above as an extra safety measure even in this embodiment. In a preferred embodiment of the pumping variety, the radius r of the working area as large as possible, such that the pressure increase Δp needed to overcome the spring force F s  becomes as small as possible. (See equation 3). At the same time, the bottom part should not be too thick. This limits the area of the channel  130 . In the embodiment on  FIGS. 9 and 10 , the working area is defined by the channel  130 . This is assumed to be a reasonable compromise between a desire for a large working area for the pressure from the reservoir chamber  120  and a compact design which implies a correspondingly smaller working area.   
 
         [0077]    I should be understood that valves and a flexible bottle wall also can be used in the embodiment shown in  FIGS. 1-3 , e.g. by affixing a flexible membrane over the opening between the reservoir chamber  120  and mixing chamber  140  in  FIG. 1 . The opening between the two liquid reservoirs thus corresponds to the channel  130  in  FIG. 4 . Moreover, is should be understood that a rotatable bottom part  110  with a channel  130  can be adapted to several reservoir chambers  120 ,  120   a.    
       EXAMPLE 
       [0078]    Assume that the drinking bottle  100  initially has a reservoir chamber  120  with 8 dl water and a mixing chamber with 2 dl air. The wall of the reservoir chamber  120  is pressed inwards, and the volume is reduced by 1 dl. This causes 1 dl water to pass through channel  130  and valve  135  to the mixing chamber  140 , and some air flows out through valve  147 . The pressure of the air above the water in mixing chamber  1  depends on the “spring force” from the valve  147 . In other words, a certain overpressure Δp over the pressure of the atmosphere is required to open the valve  147  and release air to the ambient atmosphere. 
         [0079]    Thereafter, the user releases the wall of reservoir chamber  120  and let it return to the starting position. In this phase, air flows into the reservoir chamber  120  through the air intake valve  125 . It is desirable that the chamber valve returns completely to the initial position, and the “spring tensioning” in the air intake valve  125  therefore should be correspondingly small. 
         [0080]    Next time the user presses in the chamber wall, some work is used to increase the pressure of the air in reservoir chamber  120 , whereas the remaining work is used to overcome the spring forces from the valves  135  and  147 . As described above, the force F on the ball  133  increases with the working area. The working area is in the embodiment shown equal to the area of a cross section of the channe  1130 . Other embodiments with larger or smaller working areas can be imagined. 
         [0081]    In the foregoing example, spring force, working area for pressure and the properties of the bottle wall can be adapted to each other such that the user experiences a firm response to his pressing without using too much force. 
         [0082]    The pumping variety is also suitable in applications where the amount of liquid should be measured as dosages, e.g. when administering medicaments. When measuring a dosage of a therapeutic mixture, e.g. cough mixture, the mixing chamber can have a volume of e.g. 2 or 5 ml, and be filled with, e.g., one push on a flexible bottle wall or a piston. The bottle wall or cylinder volume can be adapted such that the user gets a firm feedback when the mixing chamber  140  is filled, and can further be adapted such that the wall or piston cannot be depressed more than accurately filling the mixing chamber  140 . Thereby it can be avoided that liquid is unintentionally pressed out through the air outlet valve  147 . 
         [0083]      FIGS. 11   a  and  11   b  shows a valve  147  comprising a flexible sheet or membrane  146  over an opening  102  in the body  101 . The sheet  146  is partly affixed to the body  101 , and closes the opening  102  when an elastic force (spring force) F 2 &gt;p 1 ·A, where A is the area of opening  102 . Alternatively: The valve  147  is closed when the pressure difference 
         [0000]      Δρ&lt;F 2   /A    (5)
 
         [0000]    where positive pressure difference is in the direction from the body  101  towards the sheet  146 , In  FIG. 11   b  a positive pressure difference Δp=p 2  is shown, which is sufficiently large to overcome the spring force F 2  from the elastic sheet  146 . The sheet  146  will then be lifted from the base  101 , such that air can pass through the opening  102 . The air flow is illustrated by arrow  148  in  FIG. 11   b.    
         [0084]    In a valve  147  that is to release air, the sheet must be disposed on the outside of the body  101 . A similar device with a sheet  146  on the inside of openings  102  can be used in the air inlet valves  125  and  145  in the chambers  120  and  140 . In both cases a sufficiently large overpressure in the direction from a base in the direction towards the sheet  146  cause the valve to open, whereas the valve will be closed when the pressure difference is less than a limit value F 2 /A, which depends solely on parameters of the valve. 
         [0085]    The valves  125 ,  145  and  147  can also be modelled as the valve  135  in  FIGS. 10   a  and  10   b , and the equations 1-4 can be used to select suitable materials and designs. It is emphasized that material coming into contact with the drink should not produce poisonous, harmful or hazardous materials. 
         [0086]    The  FIGS. 12   a - d  show an alternative embodiment of the drinking bottle  100  with concentric chambers  120  and  140 , wherein the mixing chamber  140  has less diameter than the reservoir chamber  120 . A top part  150  can be screwed off for simple filling of the reservoir chamber  120 . The top part  150  has a hinged lid  151 . The top part  150  can if desirable be provided with a drinking tube that is not part of the ampoule  200 . 
         [0087]      FIGS. 13   a - f  illustrate a method for use of the drinking bottle  100  in  FIG. 4 .  FIG. 13   a  shows a drinking bottle  100  as in the embodiment on  FIGS. 4 and 6 , where the top part  150  is removed. The reservoir container  120  is filled with water, and the top part  150  is screwed on.  FIG. 13   b  shows that one or more ampoules  200  can be disposed in suitable rooms in the top part  150 . A hinged lid  151  can be closed over the ampoules  200  in order to retain them.  FIG. 13  c sows an ampoule  200  positioned above a receiving device  108 . The ampoule  200  is still unbroken. The bottom part  110  is rotated to the position shown in  FIG. 13   d , where a channel  130  connects an opening  121  in the reservoir chamber  120  with an opening  141  in the mixing chamber  140 . The bottle  100  can now be inclined, such that water flows from the reservoir chamber  120  to the mixing chamber  140 . When the mixing chamber  140  is filled, the channel  130  is closed as shown in  FIG. 13   e . In  FIG. 13   f  the drinking tube  210  is pulled out of the ampoule  200 . This mechanical movement also causes concentrate from the ampoule  200  to be released into the mixing chamber  140 , which contains a known amount of water or another liquid. When the bottle is agitated, concentrate will be mixed with the liquid in the mixing chamber  140 , thereby providing a liquid mixture with predetermined concentrations of known substances. As indicated in  FIG. 13   f , there is still sufficient liquid in the reservoir chamber  120  to repeat the procedure with another ampoule  200   a.    
         [0088]      FIG. 14  is a section through the ampoule  200  in  FIG. 3 . The ampoule  200  comprises a relatively stiff shell  201  with a bottom part  201   a  and a top part  201   b  joined by welding to provide a fluid tight joint  201   c . The lower part  201   a  and upper part  201   b  of the container can be injection moulded and of a form stable plastic, for example poly propylene (PP). The drinking tube  210  is axially slidably disposed in a guide  260 , which is connected to the bottom part of the shell. It should be understood that the drinking tube  210  alternatively could be disposed slidably and sealingly in or around a valve sleeve with radial openings so that liquid can flow through the radial openings when the drinking tube is in an outer position, and so that liquid cannot flow through the radial openings when the drinking tube is in an inner I position. Such a conventional sliding sleeve valve is well known to one skilled in the art, and can be used instead of or in addition to the drinking valve discussed below. 
         [0089]    The drinking tube  210  and the upper part  201   b  of the shell of the ampoule are connected by an elastic membrane or bellow  220  moulded from a suitable thermoplastic elastomer (TPE). The moulding process for the integrated lid  201   b ,  220  is called two-component ( 2 C) moulding. 
         [0090]    The lower part  201   a  of the ampoule has a section  206  at the bottom  203  with reduced thickness so that one by applying a certain pressure on the drinking tube  210  is able to press a hole in  205  in the bottom, and thereby open the container such that the contents can be emptied into a mixing chamber  140  or some of the liquid reservoir in  120  in the bottle  100  ( FIGS. 1 and 4 ). It should be understood that the seal  206  alternatively can be broken, i.e. the hole  205  be opened, by pulling the drinking tube away from the bottom part  201   a  without pushing it first, and/or in that the seal  206  is a lid that can be removed from a hole  205  by moving the drinking tube  210 . The seal  206  with reduced thickness can be a foil that is welded or glued over the opening  205 , and any means known in the art transferring force through the drinking tube  210  to break a seal  206 , i.e. open the hole  205 , can be used with the invention. 
         [0091]    I the figures, a separate filling hole  207  is shown in the bottom for injection of substrate as part of the manufacturing process. This hole is then sealed with a diffusion tight foil, e.g. a foil of plastic or aluminium which is welded or glued over the opening. It should be understood that the holes  205  and  207  can be the same hole, i.e. that the ampoule is filled through the opening  205 , which then is sealed with a foil. 
         [0092]      FIGS. 15   a  and  b  show a mounted and welded ampoule ready for injection of substrate or concentrate through the hole  207  at the left in the figures.  FIG. 15   a  shows the bottom part of the ampoule in  FIG. 14 . In  FIG. 15   b , the ampoule is positioned with its bottom part up, and can be filled with a substrate through the opening  207 . 
         [0093]      FIGS. 16   a -c illustrate an ampoule ready for sale. The ampoule is in this case provided with a protective foil  230  over the top, and a protective foil  231  over the bottom. The protecting foils  230 ,  231  can be made of plastic or aluminium that is welded or glued over the ampoule, and that can be easily removed before use. 
         [0094]    In use, the protective foils  230 ,  231  are torn off the ampoule  200  before it is deployed in an adapted space, where the ampoule has a defined space with support on its outer faces and bottom face, e.g. in the top part  150  of a drinking bottle as shown in  FIGS. 1 and 2 . 
         [0095]    The central part of the bottom of the ampoule then abuts a concentric seal  108  sealing between the bottom  203  of the ampoule and the circular bottom face which is torn out of the ampoule when the drinking tube is pressed downwards. When the bottom is penetrated, a continued pressure will ensure an opening that is large enough to allow the contents of the ampoule to flow down into the liquid reservoir in the bottle. 
         [0096]    Once the ampoule is emptied, the drinking tube can be pulled out to an upper position, where the TPE-membrane is reversed and has obtained a new “stable” position. 
         [0097]      FIG. 17  show the ampoule from  FIGS. 14 and 15   b  with the drinking tube in its outer position. On  FIG. 17 , the drinking tube  210  is locked to the seal/lid  206  by means of a snap lock. This ensures that the seal  206 , which is torn from the ampoule during opening or puncture, does not fall into the bottle. The guide  260  has openings  261  in the sidewall to ensure that as little substrate as possible remains in the ampoule when it is emptied into the bottle, and that the ampoule is well drained when the bottle is being drunk from. 
         [0098]    Stoppers, e.g. radial lugs abutting a radially extending shoulder, limits the axial movement of the drinking tube  210  in the valve sleeve. Thereby, the drinking tube  210  can be pulled out to a maximum distance from the bottom part  203  of the shell, but not further. The view shows how the nipple stops in its outer position. 
         [0099]    Longitudinal guiding slots or guides (as shown in the tubular guide  260 ) rotation locks the drinking tube  210  relative to the valve sleeve, and ridges/grooves in the circumferential direction of the drinking tube and valve sleeve ensure that the user gets a tactile feedback when the drinking tube is in an outer position (open drinking valve), and when the drinking tube is in an inner position (closed valve). 
         [0100]    The drinking nipple  211  can be closed (sealed) by application of a light push inwards (downwards in  FIG. 17 ). The valve seals, but is not pushed entirely past the locking groove, This provides for an easier opening/closing when the bottle does not require a full sealing. In order to lock the nipple better, for example during transport, the nipple can be pressed harder in on the drinking tube such that the snap lock is activated as shown on the view to the left, i.e. in that a snap lock ridge inside the nipple is pressed past a locking ridge on the drinking tube  210 . When desired or when the bottle is empty, the drinking tube can be pressed back to its lower position so that it occupies less space and can be disposed of as common plastic waste. Guiding ribs in the bottom part of the container prevents drinking tube  210  and/or valve sleeve  260 . These ribs also ensure that the drinking tube  210  hits the centre and enters the centre hole in the container. The guiding ribs are drained by means of axial openings so that the ampoule can be completely emptied. 
         [0101]    The receiving device shown in  FIGS. 1-9  can be a seal as described in connection with the ampoule shown in  FIGS. 14-17 . It is of course also possible to provide a male part on the ampoule  200  and a female part on the bottle  200 . The receiving device  108  can alternatively comprise a tip, a tube or a cannula suitable for penetrating or tearing a membrane that can comprise the seal  206 . 
         [0102]    As described above in connection with the reservoir chamber  120  and the mixing chamber  140 , it may in some cases be necessary to let air into the ampoule  200  when the contents is emptied into the mixing chamber  140 . This air can advantageously be provided through the receiving device  108 , so that the ampoule  200  can be manufactured as simple and inexpensive as possible, i.e. without an air inlet valve in each ampoule. However, in an alternative embodiment where the concentrate is powder or where a membrane or foil is removed completely or partly between the ampoule and mixing chamber, it is not necessary to provide a separate air inlet to the ampoule  200 .