NO20093607A1 - Drink bottle for dosing of variable contents in a liquid - Google Patents

Abstract

The beverage bottle 100 comprises a body 101, a bottom portion 110, and a top portion 150. The body 101 comprises a reservoir chamber 120 connected through a closable channel 130 with a mixing chamber 140 provided with a receiving device 108 adapted to a concentrate vial 200. Content from the concentrate vial 200 may be mixed with liquid from reservoir chamber 120, and pre-mixed liquid can be drunk through a drinking tube 210. The duct 130 may be closed if desired by rotating the bottom portion 110 relative to the body 101, and concentrate vials may be replaced by rotating the top portion 150 relative to the body. 101. The volume of the mixing chamber can be used to dose the amount of liquid. The drinking tube 210 may be screwed onto the bottle 100, or placed on a concentrate vial 200 to facilitate cleaning and / or sterilization.

Description

BACKGROUND

This invention relates to a drinking bottle for dosing variable content in a liquid.

During exercise and sports Ise, the body loses salts and water through sweat, and the cells convert glycogen, phosphates and other chemical compounds. It is important to maintain the chemical balance in the cells to get the maximum effect from the training, and to restore the chemical balance in the cells after a large expenditure of energy or a hard effort, e.g. during hard training or in a competition. Doctors, athletes and trainers know that the body needs a supply of various substances before, during and after training or competition. A marathon runner has e.g. different needs during the preparations than during the marathon. Which substances are required depends on the activity being carried out. For example, a marathon runner has different needs than a sprinter.

Sports drinks intended for training and recovery are well-known and popular. These are supplied both as a ready-mixed drink and as a powder to dissolve in water in a drinking bottle of known volume. In both cases, a standardized drink containing a reasonable mixture of liquid, salts, glucose and flavorings is typically obtained. Glucose is an easily transferable sugar that both increases the supply of easily transferable energy during hard efforts, and which is needed to build up glycogen during recovery. Water and salts that are lost through sweat must of course be replaced, and are thus common ingredients in a sports drink.

Protein-rich drinks for bodybuilding, various drinks to promote fat burning, etc. are similar to the above sports drinks in that they all have a prescription with a predetermined content of salts, nutrients, flavorings and so on dissolved in water. The concentration and composition vary.

In other words, there is a need for different drinks with different recipes for different purposes.

Dosing the amount of fluid can also be important during physical activity. Too little fluid can mean that the body does not receive sufficient amounts of water, nutrients and salts. Too much fluid can cause problems in endurance sports. In e.g. a marathon, a cross-country race or a cycling competition therefore ensure that the athletes drink the right amount, i.e. not too much and not too little. During training and in some competitions, the athlete must bring the necessary drinks with him. Fear that the drink won't last until the training session or the competition is over can lead to drinking too little along the way, and having drinks to spare when the training session or competition is over. Conversely, fear of not adding enough fluid can lead to running out of fluid towards the end of a training session or a competition. In both cases, the yield from the training or the result in the competition would probably have been better if the amount of fluid had been dosed better. In other words, in these cases, it would be advantageous to have an improved dosing of the amount of liquid.

In other applications, e.g. during or after exercise, the dosage of fluid volume is less important. If the physical load allows fluid to be added as needed, it is more important that a sufficient amount of fluid with a predetermined concentration of glucose, salts and other substances is available. Any excess fluid can leave the body as sweat or urine. In these situations, the need to dose known substances in the drink is more important than the need to dose ready-mixed liquid to a user.

During physical activity, e.g. sports that include running or cycling, it is impractical to drink from a cup, glass or open bottle. There are therefore a number of well-known drinking bottles for sports use which are equipped with a drinking tube and/or a drinking valve. A typical drinking bottle has a drinking tube that closes the bottle when pushed in and opens the bottle for drinking when pulled out. The drinking tube typically has a mouthpiece or a flange at its outer end, so that the user can easily open and close the bottle with their teeth and one hand.

One problem with known drink bottles is that they have one chamber, and thus in principle can contain one drink at a time. This drink can in principle be replaced with pre-mixed drinks if necessary. In that case, the athlete must bring a number of ready-made mixtures with him or her if he or she wants different drinks adapted to the body's needs, e.g. before, during and after training, before, during and after competition, etc. Alternatively, the athlete can carry different powder bags in the training bag, and mix the right bag for the right purpose in water before use. If the amount of powder or concentrate is not adapted to the volume in the drink bottle, the powder or concentrate must also be weighed or dosed before use to give the desired concentration of the various substances.

Another problem with known drinking bottles is cleaning the drinking tube. A typical drinking bottle for sports use is made of relatively soft plastic, and the drinking valve typically comprises two concentric plastic tubes which are displaced in relation to each other by axial movement, and where at least one of the tubes has radially directed openings. For example, an outer tube with a nozzle or flange at its outer end may be concentrically, slidably and fluid-tightly fitted ("telescoped") to an inner tube with radially directed openings. The outer tube covers the radial openings as long as the tubes are pushed together, and does not cover the radial openings when the tubes are pulled axially apart. The annular space between the pipes is difficult to access for cleaning, but can provide good growth conditions for algae, bacteria, fungi and other microorganisms that have ample access to water, minerals, glucose and other nutrients from the drink(s) that are or have been in the bottle .

Another application is the dosing of medicine. A number of drugs are distributed in the known technique as powder (freeze-dried and/or as a pharmacological salt) in ampoules, and a solvent must be added, e.g. water, before use. It is known to supply solvent from a syringe through e.g. a needle or a luer coupling. Usually, the ampoule is then agitated, so that the solution has a known concentration of the active ingredient. The contents of the ampoule are then drawn back into the syringe, and a predetermined amount of the solution is injected from the syringe into a human or animal body, possibly via an infusion bag or an infusion system.

Medicines in liquid phase that are taken by mouth (orally) can be distributed as a ready-made mixture or mixed drink, e.g. cough syrup. If the active substances are instead distributed in a freeze-dried state or as a pharmacological salt, shelf life can be increased and the need for packaging reduced. The advantages are the same as when distributing the above-mentioned known drugs in powder form which is added to a solvent before use and then injected by means of a syringe or an infusion system. The need for drinks with different recipes for different purposes also applies to potions with therapeutic effects.

In known techniques, a measuring cup or spoon is used when dosing a ready-mixed mixture, e.g. a cough syrup. A measuring cup can get lost, and a tablespoon can have different sizes. The dosage thus becomes uncertain. The need for improved dosing of drinks thus also applies to potions with a therapeutic effect. The need for improved cleaning of the drinking tube in a drinking bottle for sports use is analogous to a need for cleaning and/or sterilization of a corresponding drinking tube for administering a drug mixture.

A task sought to be solved with the present invention is thus to produce an improved drinking system where different recipes can be offered for different needs.

A second task that is sought to be solved with the invention is a need to dose a quantity of liquid to the user. This need exists in some applications, but not in all.

A third task that is sought to be solved is to produce a drinking system which has the advantages of the known systems in use, but which does not have the disadvantages of cleaning a drinking tube.

SUMMARY OF THE INVENTION

These tasks are solved according to the invention by providing a drinking bottle for dosing variable content in a liquid, which drinking bottle comprises a body, a bottom part and a top part, characterized in that the body comprises a reservoir chamber connected through a channel and a chamber valve with a mixing chamber, which mixing chamber is equipped with a receiver device adapted to a concentrate ampoule, and which mixing chamber can be selectively fluidly connected to a drinking tube via a drinking valve.

Another aspect of the invention relates to a concentrate ampoule comprising a housing with an inner end and an outer end, characterized by a coupling at the inner end adapted to a receiving device on a drinking bottle for selective fluid connection between the interior of the housing and the drinking bottle.

The invention also includes a method for providing a dosed drink in a drinking bottle comprising a liquid-filled reservoir chamber, characterized by filling a mixing chamber in the drinking bottle with liquid from the reservoir chamber, placing a concentrate ampoule with dosed contents in the drinking bottle, creating a fluid connection between the concentrate ampoule and the mixing chamber, and agitating the beverage bottle to mix the liquid from the reservoir chamber with the contents of the concentrate ampoule in the mixing chamber.

By adapting the contents of the concentrate ampoule to a liquid volume in the bottle's mixing chamber, a drink with a predetermined concentration of various salts and/or nutrients and/or drugs is obtained. Different concentrate ampoules can be used for different purposes.

The need to dose the amount of liquid to the user in certain applications is solved by adapting the volume of the mixing chamber to the amount of liquid that is desired to be supplied.

In a particularly preferred embodiment, the drinking tube is placed on the concentrate ampoule. Both parts can be thrown away after use. This solves problems with cleaning and/or sterilization.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention is described in more detail in the following with reference to the attached drawings, where like reference numbers refer to elements with the same or similar function, and where: Figure 1 is a longitudinal section through a first embodiment of the drinking bottle.

Figure 2 shows an embodiment of the drink bottle seen from above.

Figure 3 is a cross-section of the bottle at the line ///-/// in Figure 1.

Figure 4 shows a section of the bottom part of the bottle in Figure 1 with the bottom turned 90°.

Figure 5 is a cross-section of the bottle at the line V-V in Figure 4.

Figure 6 is a longitudinal section through a second embodiment of the drinking bottle.

Figures 7a and b are schematic diagrams of a first non-return valve.

Figures 8a and b are schematic diagrams of a second non-return valve.

Figure 9 a-d shows a third embodiment of the drinking bottle.

Figure 10 a-f illustrates a procedure for using the drinking bottle.

Figure 11 a-c shows a first embodiment of a concentrate ampoule.

Figure 12 a-d shows a second embodiment of a concentrate ampoule.

Figure 13 a-d shows a third embodiment of a concentrate ampoule.

DETAILED DESCRIPTION

The figures are principle sketches, not detailed machine drawings. For the sake of simplicity, a number of details have been omitted. It is left to the expert to assemble the bottle in a suitable way depending on the choice of material. The bottle 100 can e.g. are made of plastic, metal and/or glass for various purposes. A concentrate ampoule 200 with drugs can be made of glass, while a variant of the concentrate ampoule 200 for sports use can be made of cardboard. Figure 1 shows a first embodiment of a drinking bottle, generally denoted by 100. The drinking bottle has a body 101, a bottom part 110 and a top part 150. The body 101 comprises a mixing chamber 140, where liquid, e.g. water or another solvent, from a reservoir chamber 120 can be mixed with contents from a concentrate ampoule 200. The concentrate ampoule 200 is described in more detail in connection with figures 11-13 below. Between the reservoir chamber 120 and the mixing chamber 140, a channel 130 and a chamber valve 135 are provided. When the channel 130 and the chamber valve 135 are open, as shown in Figure 1, water can flow from the reservoir chamber 120 to the mixing chamber 140. The water leaving the reservoir chamber 120 is then replaced fall with air that is admitted into the reservoir chamber 120 through a first air inlet valve 125. The valve 125 must be able to admit 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 which any known type, e.g. an elastic cloth or membrane partially attached to the inside of an opening in the body 101 corresponding to the valve 147 shown in figures 8a and b.

The mixing chamber 140 is similarly equipped with a second air inlet valve 145, which can admit air while the user drinks liquid from the mixing chamber 104 through a drinking tube 210, and an air outlet valve 147 which can release air from the mixing chamber 140 when liquid is supplied from the reservoir chamber 120. The valves

145 and 147 may also be of any suitable type which can admit air when the user drinks unmixed liquid from the mixing chamber 140 and which releases air when liquid is transferred from the reservoir chamber 120 to the mixing chamber 140, and which prevents liquid from accidentally escaping. See e.g. the description of valve 125 above and figures 8a and 8b. The air discharge valve 147 can also be connected to a water trap or other known device which prevents liquid from passing, but which allows air or gas to pass through. If an elastic cloth comes into contact with the liquid in the chambers 120 and/or 140, the cloth must of course be made of a material which does not impart taste or smell, and which does not contaminate the contents in any other way.

The mixing chamber 140 is further equipped with a receiving device 108 for a concentrate ampoule 200. The receiving device must be able to prevent the concentrate in the concentrate ampoule 200 from flowing out or being inadvertently mixed into the liquid from the reservoir chamber 120, and is described in more detail below.

A drink or liquid containing certain substances with predetermined concentrations can thereby be produced by mixing a suitable concentrate from the concentrate ampoule 200 with clean water or another known solvent from the reservoir chamber 120 in the mixing chamber 140. The mixture or mixture can then be drunk from the mixing chamber 140, f .ex. through a drinking tube 210. To prevent liquid from accidentally flowing out through the drinking tube 210, e.g. while the concentrate from the ampoule 200 is mixed with liquid from the reservoir chamber 120 or when the bottle is shaken during use, the drinking tube is equipped with a drinking valve. The drinking valve can consist of two concentric pipes, at least one of which has radially directed openings as described above.

The drinking tube 210 can be releasably mounted on the bottle 100, e.g. with a threaded connection or bayonet socket, so that it is easy to screw or twist off the drinking tube 210 with drinking valve 202 for cleaning or sterilisation. Alternatively, the drinking tube 210 can be placed on a concentrate ampoule 200 as described below.

Figure 2 is a top view of the embodiment in Figure 1, where concentrate ampoules 200, 200a and 200b are intermediately stored in the top part 150. The concentrate ampoules can have the same or different contents, e.g. for use before, during and after training. The top part can also have storage spaces for more or fewer concentrate ampoules 200, and one or more storage spaces can be empty. The top part 150 can, if desired, be equipped with a lid 151, e.g. as shown in figures 9 and 10.

A receiver device 108 which can be selectively fluidly connected to the interior of a concentrate ampoule (200) is advantageously placed near the bottom of at least one such compartment for concentrate ampoule(s) 200. By "selective fluid connection" is meant here that the concentrate ampoule can be placed over the receiver device 108, and remain intact for a period. The fluid connection is only created when the user wants it, and can be created by e.g. to press or screw the ampoule in place so that a tip or a tube penetrates a membrane, corresponding to a needle that penetrates a membrane or rubber stopper in the known technique. Alternative designs may include a cardboard or aluminum foil that is torn away from an opening or the like, and will be known to a person skilled in the art. The fluid connection between the mixing chamber and the interior of the concentrate ampoule should be able to be closed when changing ampoule 200. The receiver device 108 can be equipped for this purpose with a non-return valve, e.g. corresponding to that shown in Figures 7a and b. In such an embodiment, a pin will typically push in the ball 133 when the concentrate ampoule 200 is in place, and a spring 137 will push the ball towards a valve seat 131, so that the ball 133 seals when the concentrate ampoule 200 is removed from the holder or receiving device 108, and said pin is thereby retracted.

In some embodiments, a seal between the concentrate ampoule 200 and the mixing chamber 140 may be broken when the drinking tube 210 is pulled out. If the drinking tube is equipped with a drinking valve in the form of an axially pushable sleeve as described above, then the drinking tube should be pushed back while the bottle is shaken or agitated to prevent fluid from the mixing chamber 140 from inadvertently flowing out through the drinking tube 210. In other words, the mixing chamber 140 can selectively fluid is connected to a drinking tube 210 via a drinking valve 202, so that the drinking valve 202 prevents liquid, concentrate or powder from leaving the mixing chamber unintentionally when the bottle is shaken to mix concentrate and liquid from the reservoir chamber 120, or when the bottle 100 is shaken while the user is in physical activity and brings the bottle.

In some embodiments, the top part 150 can be rotatably attached to the body 100. The user can thereby turn a new concentrate ampoule 200 into place over a receiving device 108 without a top lid 151 having to be opened or concentrate ampoules 200, 200a having to be taken out of their respective storage spaces and/ or the receiver device 108. Such an embodiment can simplify the exchange of concentrate ampoule 200 for a new concentrate ampoule 200 or 200a. In an embodiment with a rotatable top part, it would be appropriate to design the aforementioned storage spaces as bores through the top part 150, so that the bottom of the aforementioned storage spaces is formed by a lid over the reservoir chamber 120 and the mixing chamber 140. The concentrate ampoules can thereby be rotated over the receiving device 108 above the mixing chamber 140 in turn, and is rotated away from the receiving device 108 when the concentrate ampoule's contents have been emptied into the mixing chamber 140.

Figure 3 shows a cross-section of the bottle along the line ///-/// in Figure 1.1 Figures 1 and 3, 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 is shown for the sake of clarity as circular holes with the same diameter as the channel 130, but both the holes 121,141 and the channel 130 can of course be designed differently. In the channel 130 in figures 1, 3 and 6, a non-return valve 135 is placed which will ensure that liquid can flow from the reservoir chamber 102 to the mixing chamber 104, but not the opposite way. Figures 10 a-f show an embodiment without a non-return 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.

It should be understood that the channel 130 can also be part of the body 101, and that a rotatable bottom part 110 can have plates or other means that can close the fluid connection through the channel 130.1 In both cases, a rotatable bottom part 110 is used to close the channel 130 manually.

In the embodiment shown in Figures 1 and 3, the valve 135 is a loose ball in a cylindrical channel chamber coaxial with the channel 130. The channel chamber in Figure 1 has a larger diameter than the channel 130. The channel 130 thereby forms two circular openings in the end walls of the channel chamber. The first opening, leading to the reservoir chamber 120, is open and may 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 liquid flow from the channel chamber past the ball into the channel 130 towards the reservoir chamber 120. The second opening, at the opposite end of the channel chamber, leads into the channel 130 in the direction of the mixing chamber 140. This second opening is closed with a grid or the like which prevents the ball from clogging the opening and which allows liquid to flow past. When the bottle is shaken or poured, liquid can thereby flow from the reservoir chamber 120 to the mixing chamber 140, but not the other way around. When the bottle is at rest, however, liquid can flow in both directions through the channel 130 between the reservoir chamber 120 and the mixing chamber 140. In order to prevent pre-mixed liquid from flowing from the mixing chamber 140 to the reservoir chamber 120, the channel 130 must therefore be able to be closed manually in this embodiment. An alternative non-return valve 135 with a spring-loaded ball is described in more detail in connection with figures 6 and 7 below.

Figure 4 is a section along the line IV-IV in Figure 5, and Figure 5 is a cross-section along the line V-V in Figure 4. Figures 4 and 5 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 figures 4 and 5 thereby closes the channel 130, and can be regarded as a second chamber valve that closes the fluid flow through the channel 130 between the two chambers 120 and 140. If a first chamber valve, e.g. the non-return valve 135 described above does not seal satisfactorily, it can thus provide a second chamber valve for permanent or manual closing of the channel 130 between the chambers 120 and 140. The invention therefore needs at least one chamber valve to prevent the ready-mixed drink from the mixing chamber 140 from being mixed with water from the reservoir chamber 120. This at least one chamber valve can be a non-return valve 135 and/or a manual valve such as e.g. the rotatable bottom part 110 which opens and closes the fluid connection between the reservoir chamber 120 and the mixing chamber 140.

Figure 6 shows the lower part of an alternative embodiment of the drink bottle 100, where a non-return valve 135 with a pre-tensioned ball seals the channel 130. A principle sketch of the non-return valve 135 is shown in figures 7a and b. In figure 6, the non-return valve 135 prevents liquid from flowing from the mixing chamber 140 to the reservoir chamber 120, so that there can be a difference in the liquid levels, shown at Ah, even when the bottle is at rest. In this embodiment, it is thus not necessary to provide a rotatable bottom part 110 or other chamber valve to prevent liquid from flowing back from the mixing chamber. The embodiment shown in Figure 6 can be manufactured

with a flexible chamber 120. When the chamber wall is pressed in, e.g. as shown by the dashed line 122, the pressure in the chamber 120 increases. If the resultant force F due to a positive pressure difference between the chambers 120 and 140 (see Figs. 7a and b) is greater than the spring force Fs in the check valve 135, then liquid will flow from

the reservoir chamber 120 through the channel 130 to the mixing chamber 140. The air thereby displaced from the mixing chamber 140 is released through an air outlet valve 147, for example of the type shown in figures 8 a and b, which can further be connected with a crooked passage, a water trap or another known device that prevents liquid from leaving the chamber 140 along with the displaced air.

Figure 7a is a detailed schematic diagram of the channel valve 135 in Figure 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 formed in this embodiment by the outlet of channel 130 in an end wall of a concentric channel chamber of the type described above in connection with Figure 1. The force from the spring 137 on the ball 133 is given by Hooke's law:

where:

the minus sign means that the force acts from right to left in figures 7a and 7b,

k is the spring constant and

x is the compression of the spring, which can be adjusted if desired by moving a locking ring 139 to the right or left in the figure.

In the springless variant of chamber valve 135 shown in Figures 1 and 3, the spring 137 would be absent from Figure 7a, and reference number 139 in Figure 7a would refer to a grid that prevents the opening towards the mixing chamber from acting in a similar way to the valve seat 131, and can thereby prevent liquid from flowing towards the mixing chamber 140.

Figure 6 shows a pressure difference between chambers 120 and 140:

where the pressure difference Ap > 0 when the pressure in the reservoir chamber 120 is greater than the pressure in the mixing chamber 140,

p is the density of water (1000kg/m<3>),

g is the acceleration of gravity (9.81 m/s<2>), and

Ah is the positive level difference shown in Figure 6.

Such a pressure difference can be maintained when the force from the spring on the ball is greater than the force due to the effect of the differential pressure on the working area of the valve seat.

The valve 135 in Figure 6 is shown in more detail in Figure 7a. If the valve seat 131 in Figure 7a has a circular opening with radius r, the differential pressure Ap acts on an area A =Tir<2>. This gives a net force F from left to right on the ball 133 as shown in Figure 7b: In order for liquid to flow from the reservoir chamber 120 to the mixing chamber 140, F > -Fs must therefore, i.e.

From the above discussion it follows that:

a) If the channel 130 is not equipped with a chamber valve 135, the contents of the mixing chamber 140 will be able to flow into the reservoir chamber 120 and inadvertently

mixture of concentrate and water.

b) If the chamber valve 135 is equipped with a spring 137 with a spring force F$ > 0, the spring force can be overcome by pouring on the bottle if the spring force is not too great.

This is an embodiment that requires the channel 130 between the chambers 120 and 140 to be closed by other means when the bottle is in use. See e.g. figures 1-5, where the channel 130 can be closed by turning the bottom part 110 so that the end points of the channel do not coincide with one or both openings 121,141 in the chambers 120 and 140 respectively.

c) An increased pressure difference Ap can be produced by reducing the volume of a flexible reservoir chamber 120, e.g. as indicated by the dashed line 122 in Figure 6. From

equations 1 and 3 above, it is possible to adapt k, x and r so that liquid can be pumped from the reservoir chamber 120 to the mixing chamber 140. It is of course possible to provide a rotatable bottom part 110 of the type described above as an additional safeguard also in this embodiment. In a preferred embodiment of the pump variant, the radius r of the working area is as large as possible, so that the pressure increase Ap required to overcome the spring force Fs is 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 130.1 embodiment in Figures 6 and 7, the working area is defined by the channel 130. This is believed to be a reasonable compromise between the desire for a large working area for the pressure from the reservoir chamber 120 and a compact construction, which implies a correspondingly smaller working area.

Example:

Assume that the drinking bottle 100 initially has a reservoir chamber 120 with 8 dl of water and a mixing chamber 140 with 2 dl of air. The wall of the reservoir chamber 120 is pressed in, and the volume is reduced by 1 dl. This causes 1dl of water to pass through channel 130 and valve 135 to the mixing chamber 140, and some air passes out through valve 147. The pressure in the air above the water in the mixing chamber 140 depends on the "spring force" from the valve 147. In other words, a certain excess pressure is required Ap above atmospheric pressure before valve 147 opens and releases air to the surrounding atmosphere.

The user then allows the wall of the reservoir chamber 120 to drop back to the initial position. In this phase, air from the atmosphere flows into the reservoir chamber 120 through the air intake valve 125. It is desirable that the chamber wall returns completely to the starting position, and the "spring stiffness" in the air intake valve 125 should therefore be correspondingly small.

When the user next depresses the chamber wall, some work goes into increasing the pressure in the air in the reservoir chamber 120, while the rest of the work goes into overcoming the spring forces from the valves 135 and 147. As described above, the force F on the ball 133 increases with the working area . In the embodiment shown, the working area is equal to the area of a cross-section of the channel 130. Other embodiments with a larger or smaller working area are conceivable.

In the previous example, spring force, working area for pressure and the nature of the bottle wall in a pump variant of the bottle 100 can be adapted to each other so that the user experiences pressing the wall in clearly, but without using too much force.

The pump variant is also suitable for applications where the amount of liquid is to be dosed, e.g. when administering drugs. When dosing therapeutic mixtures, e.g. cough syrup as described above, the mixing chamber can have a volume of e.g. 2 or 5 ml, and fill with e.g. one press on a flexible bottle wall or a piston. The bottle wall or the cylinder volume can be adjusted so that the user receives a clear tactile feedback that the mixing chamber 140 is being filled, and can be further adjusted so that the wall or the piston cannot be pressed in further than the mixing chamber 140 is just being filled. This prevents liquid from being accidentally pushed out through the air release valve 147.

Figures 8a and 8b show a valve 147 consisting of a flexible sheet or membrane 146 over an opening 102 in the body 101. The sheet 146 is partially attached to the body 101, and closes the opening 102 when an elastic force (spring force) F2>PrA, where A is the area of the opening 102. Alternatively: The valve 147 is closed when the pressure difference

Ap < F2/ A (5)

where a positive pressure difference is calculated in the direction from the body 101 towards the cloth 146.1 figure 8b shows a positive pressure difference Ap = p2Which is large enough to overcome the spring force F2 from the elastic cloth 146. The cloth 146 will then be lifted from the substrate 101, so that air can pass through the opening 102. The air flow is illustrated by arrow 148 in Figure 8b.

In a valve 147 that is to release air, the cloth must lie on the outside of the body 101. A similar device can be used with a cloth 146 on the inside of the openings 102 in the chambers 120 and 140 in the air inlet valves 125 and 145. In both cases, a sufficiently large overpressure in the direction from a substrate 101 towards the cloth 146 causes the valve to open, while the valve will be closed when the differential pressure is less than a limit value F2/A, which only depends on the valve's parameters.

The valves 125, 145 and 147 can also be modeled like the valve 135 in figures 7a and 7b, and equations 1-4 can be used to select suitable materials and constructions. It is specifically mentioned that materials that come into contact with the drink must not release toxic, harmful or harmful substances. Figures 9 a-d show an alternative embodiment of the drinking bottle 100 with concentric chambers 120 and 140, where the mixing chamber 140 has a smaller diameter than the reservoir chamber 120. A top part 150 can be unscrewed for easy filling of the reservoir chamber 120. The top part 150 has a hinged lid 151. The top part 150 can if desired, be equipped with a drinking tube 210 which is not part of the ampoule 200. Figures 10 a-f illustrate a method for using the drinking bottle 100. Figure 10a shows a drinking bottle 100 as in the embodiment in Figures 1 and 3, where the top part 150 is unscrewed. The reservoir container 120 is filled with water, and the top part 150 is screwed on. Figure 10b shows that one or more concentrate ampoules 200 can be placed in suitable spaces in the top part 150. A hinged lid 151 can be closed over the ampoules 200 to keep them in place. Figure 10c shows a concentrate ampoule 200 placed over a receiving device 108. The concentrate ampoule 200 is still unbroken. The bottom part 110 is turned to the position shown in figure 10d, 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 poured, so that water flows from the reservoir chamber 120 to the mixing chamber 140. When the mixing chamber 140 is filled up, the channel 130 is closed as shown in figure 10e. In Figure 10f, the drinking tube 210 is pulled out from the concentrate 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 other liquid. When the bottle is shaken, the concentrate will mix with the liquid in the mixing chamber 140 and give a mixed liquid with a predetermined concentration of known substances. As indicated in Figure 10f, there is still sufficient liquid in the reservoir chamber 120 to repeat the procedure with another concentrate ampoule 200a.

The receiver device 108 shown in the preceding figures is a male part which is adapted to be connected to a female part of the concentrate ampoule 200. It is of course also possible to make a male part of the ampoule 200 and a female part of the bottle 100. Necessary seals in the form of o- rings and similar details are not shown as they will be known to a person skilled in the art. The male part may comprise a tip or needle as described above.

In a preferred embodiment, the concentrate ampoule 200 is activated when it is pressed down on a male part of the receiving device. This allows the drink to be mixed before the drinking tube is pulled out. This variant can also be used with drinking bottles that have a permanent drinking tube, i.e. where the drinking tube 210 is not part of the ampoule 200.

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 concentrate ampoule 200 when the contents are emptied into the mixing chamber 140. This air can advantageously be supplied through the receiver device 108, so that the concentrate ampoule 200 can be made most simply and as reasonably possible, i.e. without an air inlet valve in each concentrate ampoule. In an alternative embodiment where the concentrate is powder or where a membrane or foil is removed in whole or in part between the ampoule and the mixing chamber, it is however not necessary to provide a separate air supply to the concentrate ampoule 200.

The drinking pipe or drinking valve typically comprises two concentric pipes which are displaced in relation to each other by axial movement, and where at least one of the pipes has axially directed openings. For example, an outer tube with a seam at its outer end can be concentrically, slidably and fluid-tightly fitted ("telescoped") on an inner tube with radially directed openings. The outer tube covers the radial openings as long as the tubes are pushed together, and does not cover the radial openings when the tubes are pulled axially apart. The inner tube can advantageously be attached to a substrate and provide mechanical support to the outer tube, which is thereby perceived as stable by the user when he or she drinks from the bottle 100. Figure 11a shows a first embodiment of a concentrate ampoule 200, which in its inner or lower end is adapted to a receiver device 108, and where a drinking tube 210 is fluid-tightly attached to an opening in the ampoule's open end by means of a flexible collar 220. The collar 220 is attached to the outer surface of the drinking tube 201 and to an opening in the top of the ampoule 200. A capsule 230 protects the ampoule 200 and the drinking tube 210 during transport, and is removed before use as shown in Figure 11b. Figure 11c shows the ampoule 200 in Figure 11a, but with the drinking tube 210 pulled out. Figure 12 a-d shows a second embodiment of the concentrate ampoule where a top part 250 can be screwed onto the ampoule. The ampoule 200 can also be screwed into place over the receiving device 108. Such threaded connections ensure good sealing and good power transmission when elements must penetrate each other to break seals and the like. A luer coupling, which is widely used in medical applications, may be an example of a known connection of this type. Figures 13 a-d show a third variant of the concentrate ampoule 200, where a piston 201 in the inner or lower end of the drinking tube 210 is pulled up or out together with the drinking tube 210. The piston 201 can pull with it all or part of the bottom of the ampoule 200, possibly a foil or membrane, so that the concentrate can flow into the mixing chamber 140 when the piston is pulled out. The piston 201 in figure 13 must be equipped with suitable passages so that fluid can flow past the piston 201.

Claims (15)

1. Drinking bottle (100) for dosing variable content in a liquid, which drinking bottle (100) comprises a body (101), a bottom part (110) and a top part (150), characterized in that the body (101) comprises a reservoir chamber (120) ) connected through a closable channel (130) to a mixing chamber (140), which mixing chamber (140) is equipped with a receiver device (108) for a concentrate ampoule (200), and which mixing chamber (140) can be selectively fluidly connected to a drinking tube (210) ) via a drinking valve (202). 2. Drinking bottle according to claim 1, characterized in that the bottom part (110) is fluid-tightly attached to the body (101) and rotatable between an open position where the channel (130) forms a fluid connection between the reservoir chamber (120) and the mixing chamber (140) and a closed position where the channel (130) does not form a fluid connection between the reservoir chamber (120) and the mixing chamber (140). 3. Drinking bottle according to claim 1 or 2, characterized in that a chamber valve (135) is placed in the channel (130). 4. Drinking bottle according to any one of claims 1 to 3, characterized in that the top part (150) comprises at least one compartment for concentrate ampoule(s) (200). 5. Drinking bottle according to claim 4, characterized in that the top part (150) is rotatably attached to the body (100). 6. Drinking bottle according to claim 4 or 5, characterized in that at least one compartment comprises the receiving device (108) which can be selectively fluidly connected to the interior of a concentrate ampoule (200). 7. Drinking bottle according to any one of claims 1-6, characterized in that the mixing chamber (140) can be selectively fluidly connected to the drinking tube (210) through the concentrate ampoule (200). 8. Drinking bottle according to any one of claims 1-7, characterized in that the receiver device (108) and the drinking valve (202) are the same mechanical device. 9. Drinking bottle according to any one of claims 1-8, characterized in that the drinking tube (120) is axially displaceable and fluid-tightly fixed in the drinking bottle (100). 10. Concentrate ampoule (200) comprising a housing (201) with an inner end (203) and an outer end (204) characterized by a wooden coupling (208) at the inner end (203) adapted to a receiving device (108) on a drinking bottle (100) ) for selective fluid connection between the interior of the housing (201) and the beverage bottle (100). 11. Concentrate ampoule according to claim 10, characterized in that the housing (201) is equipped with a drinking tube (205) at its outer end (204). 12. Concentrate ampoule according to claim 11, characterized in that the drinking tube (210) is axially displaceable and fluid-tightly placed in the housing (201). 13. Concentrate ampoule according to claim 11 or 12, characterized in that the drinking tube (210) is connected to the interior of the housing (201) via a drinking valve (202). 14. Method for providing a dosed drink in a drink bottle (100) comprising a liquid-filled reservoir chamber (120), characterized by - filling a mixing chamber (140) in the drink bottle with liquid from the reservoir chamber (120), - placing a concentrate ampoule (200 ) with dosed contents in the drinking bottle (100), - to create a fluid connection between the concentrate ampoule (200) and the mixing chamber (140), and - to agitate the drinking bottle (100) to mix the liquid from the reservoir chamber (120) with the contents from the concentrate ampoule (200) in the mixing chamber (140). 15. Method according to claim 14, where the step of filling the mixing chamber (140) further comprises opening and closing a fluid channel (130) between the reservoir chamber (120) and the mixing chamber (140) manually.