Abstract:
The invention relates to a container and to the use thereof. The container has a chamber with a base for receiving a mixture component and an adapter for fixing the chamber to a second container. The adapter is connected to the chamber via a first connector and has a second connector to connect to the second container. Additionally, the adapter forms a flow channel for the mixture component, extending between the first and the second connector. The adapter also has a blade element in the flow channel, comprising a blade facing the base of the chamber in order to open the base. The first connector allows the chamber to rotate relative to the adapter and to the blade, said blade designed to cut through the base of the chamber along the edge of the base while the chamber rotates.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    This application is a national phase entry under 35 U.S.C. § of PCT/EP2013/071683 filed on Oct. 17, 2013, which claims priority to Swiss Patent Application 02072/12 filed on Oct. 23, 2012, the entirety of each of which is incorporated by this reference. 
     
    
     TECHNICAL FIELD 
       [0002]    The invention relates to a container, particularly to an attachment for bottles, for receiving a mixture component and delivery thereof into a second container, The invention further relates to a method for adding a mixture component using such a container or attachment. 
       PRIOR ART 
       [0003]    Various containers are known from the prior art—mostly in the form of attachments for bottles—which make it possible to fill and store components of a mixture, such as of a mixed beverage, separately and to mix them together only as needed. This is beneficial, for example, if the components react with each other or if the mixture has a shorter shelf life than the individual components from which it is composed. 
         [0004]    WO 2006/122612 A1 describes an attachment for bottles for the preparation of a mixed beverage having a housing with a pour spout that is designed to receive a mixture component. As needed, the mixture component can be mixed via an additional (normally sealed) opening into a base liquid contained in a bottle. The housing is subdivided for this purpose by a base part into a receiving chamber and a connection port for connecting to the bottle. The housing is equipped with a break-open device that can be received in the connection port and serves to open a segment of the base part with a predetermined breaking point. 
         [0005]    A storage container is known from US 2002/0066677 A1 that can be connected to a bottle in order to add to it a substance present in the storage container. The device has a housing for receiving the substance and an openable seal that is arranged in the housing. In addition, a break-open section is provided that is positioned in the housing between the seal and the housing opening and is designed to be pressed from the bottle through the seal upon connection of the storage container to the bottle, The break-open section has the shape of a tip and penetrates through the center of the seal. 
         [0006]    The variant described in U.S. Pat. No. 6,293,395 B1 has several containers, each of which is filled with different substances and provided with lids. When the containers are connected, the lids are pressed from the container openings as a whole, thus going into the interior of the containers. 
       ADVANTAGES OF THE INVENTION 
       [0007]    It is an advantage of the present invention to provide a container that enables a reliable mixing of two components and is simple and cost-effective to manufacture. Additional advantages of the present invention follow from the following description. 
       SUMMARY OF THE INVENTION 
       [0008]    The abovementioned advantages are achieved according to the invention by a container and the use thereof according to present invention. 
         [0009]    It is particularly a container having a chamber with a base for receiving a mixture component and an adapter for fastening the chamber to a second container. The adapter is connected via a first connecting means to the chamber and has a second connecting means for connecting to the second container. In addition, the adapter forms a flow channel for the mixture component extending between the first and the second connecting means. Moreover, the adapter has a blade element in the flow channel with a blade facing toward the base of the chamber for opening the base of the chamber. The first connecting means enables a rotation of the chamber relative to the blade and expediently also relative to the adapter, the blade being designed to cut through the base of the chamber along its edge upon rotation of the chamber. The cut can be circular, It is advantageous if the chamber and the adapter are non-detachably connected to one another. 
         [0010]    Additional embodiments are described below, and the features mentioned (individually) in this context are to be regarded as being features that can be realized separately (as part of any container) or—insofar as they are not contradictory—in any combination. 
         [0011]    The mixture component can be present as a solid (e.g., a powder), a liquid or a paste. 
         [0012]    The first connecting means enables movement of the chamber in the direction of the second connecting means and/or toward the adapter and/or (completely or partially) into the adapter, the blade being designed to come into contact with the base of the chamber during said movement of the chamber and to release it from the chamber along a circle or circular arc and/or along its edge. Expediently, the chamber can also be rotated relative to the blade and also relative to the adapter for this purpose. This rotatability can advantageously be enabled by the first connecting means. 
         [0013]    The opening of the chamber base does not occur automatically upon connection of the container to the second container as is known from the prior art. The opening of the chamber base can advantageously be executed independently of a connection of the container to or with the second container and/or before or after such a connection. 
         [0014]    According to one embodiment, the blade is embodied so as to detach the base of the chamber only partially from the chamber upon rotation, particularly maximum rotation, of the chamber. In this way, the base or the part cut from the base remains connected to the chamber and cannot fall into the adapter or second container, For the cited purpose (or for other purposes, e.g., in the event that several blades are present), the rotation of the chamber relative to the blade or relative to the adapter can be limited in relation to the maximum rotation angle. This can be achieved by a stop that defined the maximum rotation angle. 
         [0015]    The container can advantageously be characterized in that the rotation of the chamber relative to the adapter is limited in relation to the maximum rotation angle to less than 360 degrees, or less than 350 degrees. However, the rotation angle can also be limited to less than 180 or 170 degrees (e.g., if two blades are provided) or less than 120 or 110 degrees (e.g., if three blades are provided). Alternatively or in addition thereto, the rotation of the chamber relative to the adapter can be limited with respect to the maximum rotation angle by stops. Also alternatively or in addition to that described above, the chamber and the adapter can be connected to each other such that the rotation of the chamber relative to the adapter for the opening of the base of the chamber can occur clockwise or counter-clockwise. 
         [0016]    Furthermore, a provision can be made that the rotation of the chamber relative to the adapter occurs in a restraint-guided manner. Through the restricted guidance of the rotational manual movement, the chamber can advantageously be displaced in the translational direction and/or the manual rotation of the chamber relative to the adapter can bring about a convergence between chamber and blade and thus the opening of the base in a restraint-guided manner. 
         [0017]    According to a variant, the chamber or at least its base-side end can be received, for example by being screwed, completely or partially into the adapter. For this purpose, it is advantageous if the outer cross section or contour of the chamber corresponds substantially to the inner cross section or contour of the adapter, The chamber has an at least partially (substantially) cylindrical, particularly circular-cylindrical, outer (and also inner) shape, with the same applying to the inner (and also the outer) shape of the adapter. The inner and outer shapes are substantially defined by the outside and the inside of the side walls of the chamber and adapter. This also applies at least to the two ends of the chamber or adapter facing toward each other, particularly at a length that corresponds substantially to the distance of the blade element from the edge of the opening on the side of the first connecting means, i.e., of the chamber-side opening of the adapter. 
         [0018]    The maximum outer diameter of the chamber is smaller at the base-side end and larger at the end facing away from the adapter than the maximum inner diameter of the adapter at the end facing toward the chamber. Expediently, said diameter or the outer cross section of the chamber becomes larger from the base-side end in the direction of the opposing end. The same also applies to the maximum inner diameter of the chamber or the cross section of its hollow space, As described above, the base-side end of the chamber is received in the adapter, for which reason its outer cross section corresponds (substantially) to the inner cross section of the adapter on the side facing toward the chamber. 
         [0019]    The chamber is expanded in the area that is not received in the adapter. As a result, an increase in the volume of the chamber is achieved without having to adapt the size of the adapter or increasing the length of the chamber too much. 
         [0020]    When a diameter is mentioned, this is intended to disclose, besides the diameter, the corresponding dimensions at a right angle to the axis of rotation or to the longitudinal axis of the chamber or of the adapter as well; after all, diameters are only defined for circular shapes. For example, besides the cited maximum inner or outer diameter (of the chamber or of the adapter), the maximum distance of the inner wall or outer wall from the longitudinal axis is also disclosed. When a cross section is mentioned, this discloses the cross-sectional surface on the one hand and the edge or contour of the cross-sectional surface on the other hand. 
         [0021]    It is advantageous if the chamber has a projection on its outside, particularly on its side wall, Expediently, the maximum outer diameter of the chamber is greater at the location of the projection than the maximum inner diameter of the adapter or its opening on the side facing toward the chamber. Alternatively, it could also be said that the projection protrudes beyond the edge of the adapter or extends beyond the edge of the opening in which the chamber is received. Advantageously, a spacer that can particularly be removed manually is provided between the projection and the edge of the adapter that prevents a convergence of the projection and the edge. In this way, contact between the blade and the part of the chamber base to be opened and hence an inadvertent release of the mixture component can be prevented. The spacer is a tamper-evident band that is expediently connected via predetermined breaking points to the chamber (particularly the projection) and/or the adapter (particularly its abovementioned edge). 
         [0022]    Alternatively or in addition thereto, the container can also be characterized in that the abovementioned projection encloses the chamber along its periphery, the projection forming a seal that is designed to cooperate therewith in a sealing manner upon contact with said edge of the adapter. 
         [0023]    According to another embodiment, the chamber has a seal between blade element (particularly blade) and chamber (particularly chamber base). The seal occurs through the contact of the blade element (particularly the blade) with the chamber (particularly the chamber base). Expediently, the seal extends along the edge of the base, particularly along the inside of the side wall of the chamber. The seal is designed to come into contact with the blade element (particularly with the blade) and to cooperate therewith in a sealing manner. The contact occurs before or while the blade is in contact with the part to be severed (particularly a weakened area or a predetermined breaking point) of the base. In this way, a seal is established before or during opening at the places in which the chamber is opened. For this purpose, the seal can be arranged nearer to the blade than to the part of the base to be severed. For example, the part of the base to be severed can be arranged in a recess in the base. 
         [0024]    The abovementioned seals prevent the mixture component from emerging g between the cited parts, i.e., between projection and adapter edge or between blade and chamber, Advantageously, one or both seals are formed by a circumferential cylindrical surface or conical surface (running along the inside or the outside of the adapter and/or the chamber) or in general by a circumferential projection. 
         [0025]    It is advantageous if the chamber and the adapter are non-detachably connected to one another. The chamber cannot be separated from the adapter (particularly by hand) without the use of force and/or destruction. In addition to its usual meaning, the term “non-detachable” is also intended to disclose, alternatively or in addition, the meaning of “unlosable.” The unlosable connection may be established by the first connecting means or by another means. 
         [0026]    According to another embodiment, the container can be designed for one-time use. It is possible for the container to remain connected to the second container until its disposal once it is connected to the second container. The material or materials from which the first container is made can be recycled together with the material or materials from which the second container is made. Expediently, both containers are made of plastic. Independently thereof, it is advantageous if the container has a safeguard that prevents the removal of the container from the second container. It is also possible for the container, after having been mounted on the second container, to be non-detachably connected thereto, thus resulting, according to another exemplary embodiment of the invention, in a complete container, a plastic container, particularly consisting of a second container, that contains a supply of a substance (such as a liquid) to which the mixture component is added, and a container that contains a supply of the mixture component. 
         [0027]    The first connecting means, which is used to connect the chamber to the adapter, has a first guide track and a moveable sliding projection guided along (or in) the first guide track. At least one end of the first guide track is expediently embodied as a stop for the sliding projection, so that the sliding projection cannot leave the guide track. If rotation of the chamber relative to the adapter is provided, then it is advantageous if the first guide track (substantially) has the shape of a helix or a helicoid (with substantially constant or changing pitch). The first guide track can (particularly through its length) additionally define the maximum rotation angle. On the other hand, if the chamber can be moved linearly toward the blade element, linear guide tracks also merit consideration. Also conceivable are circular arc-shaped guide tracks or combinations of those mentioned above. For example, the first guide track could define a linear movement of the chamber in the direction of the blade element by means of a linear section and enable a rotation of the chamber relative to the adapter by means of a circular arc-shaped section adjacent thereto. Expediently, one, two, three or more (first) guide tracks are provided, and they are arranged (substantially) equidistant from one another. The first guide track is provided on the chamber; alternatively, however, it can also be arranged on the adapter. A sliding projection is expediently present for each guide track that is arranged on the respective other of the parts (chamber, adapter) that can be moved relative to each other. 
         [0028]    A step (or, generally, a resistance) can be provided in the area of one or both ends of the first guide track, This step forms, in relation to the movement of the sliding projection along the first guide track, a resistance or the step requires increased expenditure of energy in order for the sliding projection to overcome it compared to the movement of the sliding projection along areas of the first guide track in which steps are not provided. The step can be embodied such that it can (only) be overcome in one or both directions of motion (without destruction). A recess can be embodied between the step and the above-described stop, or the end of the guide track, in which the sliding projection can be reversibly or irreversibly fixed. In this way, the position of the chamber relative to the adapter can be fixed reversibly or irreversibly. The sliding projection is fixed reversibly, so that the sliding projection can be removed from the recess through a movement in the direction of the step while overcoming a resistance. The distance of the step from the end of the first guide track corresponds substantially to the expansion of the sliding projection in the direction of movement. 
         [0029]    According to one advantageous embodiment, another (second) guide track is provided that is shorter compared to the first guide track, the second guide track and the first guide track meeting each other at an acute angle in the area of their ends. A step (or, generally, a resistance), is provided in the area of the other end of the second guide track, with reference being made to the above remarks with regard to the embodiment thereof. The second, shorter guide track has the shape of a circular arc and runs at a (substantially) constant distance to the chamber base. It makes it possible, after the opening of the base, to rotate the chamber relative to the adapter in the opposite direction, whereby the sliding projection can move from the first to the second guide track and finally reach the end thereof, which can form a stop and thus enable transmission of the torque from the chamber to the adapter. This can enable the removal of the adapter from the second container by means of a rotational movement. 
         [0030]    The second container is a container with an opening and a thread, particularly an outer thread, it being expedient for the thread to be arranged at the opening. The second container may be a bottle. Accordingly, the second connecting means may be a thread, it being embodied so as to cooperate with the thread of the container. However, the second connecting means can also be a bayonet joint or another positive connection. 
         [0031]    The chamber and/or the adapter are advantageously manufactured by means of injection molding. Expediently, the chamber and/or the adapter are made of plastic. Exemplar materials are: HDPE, LDPE, PP, PET as well as mixtures or (if composed of several parts) combinations of the abovementioned plastic, it being possible for the chamber and the adapter to be made of the same or from different materials. By making the adapter and the chamber as respective plastic injection-molded parts, large quantities can be manufactured cost-effectively. 
         [0032]    Moreover, it is advantageous if the chamber has a pour spout on its end opposite from or facing away from the adapter. The opening is sealed and openable and/or resealable (for example by hand). For example, the opening can be sealed with a film or by means of a lid that is connected, for example, via a twist cap to the chamber. 
         [0033]    However, a provision can also be made that the chamber (particularly at the abovementioned location) does not have an openable pour spout. This depends on whether the container is provided so as to remain connected to the second container after connection thereto and the addition of the mixture component or whether it is to be removed again. If a permanent connection is intended, then it is expedient if the container and/or the second container are provided with a screw lock that prevents removal of the container from the second container. 
         [0034]    The blade element and/or the blade is firmly attached to the adapter in a rotational and/or translational direction or so as to be immovable relative thereto. The adapter and the blade element and/or the adapter and the blade may be integrally formed. As a result, the blade and the adapter can be fixed relative to one another. 
         [0035]    Moreover, the blade element has a round or circular flow opening for the mixture component. The blade is expediently arranged on the edge of the flow opening. Expressed more generally, the blade is (or the blades are) arranged on a circle whose midpoint is defined by the axis of rotation (rotation of the chamber relative to the adapter). The blade itself can be circular or circular arc-shaped. Namely, the flow opening can have any shape, with an opening that extends to the circle. Alternatively or in addition thereto, the blade element can have a circular projection or collar extending in the direction of the chamber, the blade being arranged on it. 
         [0036]    The blade and/or the blade element can be embodied such that the part of the base cut out of the base can be lifted by the blade and/or the blade element during cutting successively or only after cutting and optionally be fixed in a position so that, on the one hand, the mixture component can be fed completely to the second container and, on the other hand, the cut-off part of the base remains in the adapter, i.e., it cannot fall into the adapter and/or the second container. It is also possible for the cut-off part of the base to be fixed in a lifted position after completion of the cutting process. It should also be noted that the mixture component is fed by gravity from the chamber to the second container, whereby additional auxiliary means for emptying the chamber can be omitted. 
         [0037]    Furthermore, in the area in which the blade touches the base, or cuts the sub-area out of the base, the base can be thinner than the rest of the base. This sub-area can mostly have a circular ring shape. As a result of such thinning, the translational force to be applied to the blade can be reduced compared to the force applied to a base that is not thinned out. 
         [0038]    More than one blade can be provided, or the blade can have one or more tips. If several tips or several blades are provided, then at least two distances (not interrupted by another tip or blade) exist between (one or two different) pairs of neighboring tips or blades that are different from each other. For example, if only two blades are present, then they are arranged so as not to be exactly opposite one another in relation to the flow opening. If the maximum rotation angle of the chamber relative to the adapter is (substantially) defined or limited (substantially) by the second-largest of the distances, then a connection between the base and the chamber remains after rotation, whereby the base can fold away and not fall off. Expressed more generally, the maximum rotation angle should be less than the rotation angle that is defined by the greatest distance. The distances define chords and circular arcs of the abovementioned circle whose midpoint is defined by the axis of rotation (rotation of the chamber relative to the adapter) and its radius by the distance of the blades or tips from the midpoint. The chords or circular arcs (i.e., the lengths thereof) clearly define an angle including, among others, the abovementioned maximum rotation angle. The maximum rotation angle can be predetermined, for example, by the stops in the guide tracks between which the sliding projection can be moved in a guided manner. 
         [0039]    It is advantageous if the flow opening narrows in the direction of the second connecting means and/or if the blade element forms a funnel. A (particularly annular) recess is located between the blade element (particularly between the funnel) and the side wall of the adapter, the recess or its opening pointing in the same direction as the opening of the adapter on the side of the second connecting means. The recess serves to receive the edge of the opening of the second container. Alternatively or in addition, the funnel is embodied so as to protrude into the second container or its opening when the container is connected to the second container. 
         [0040]    According to one variant of an embodiment, a provision can be made that the chamber forms a hollow space in which the blade is arranged. The hollow space can be a niche. 
         [0041]    The specifications on this variant refer, if nothing to the contrary is indicated, to the state of the container in which the blade is located in its initial position, i.e., to the state of the container before the opening of the chamber base by the blade. 
         [0042]    The hollow space can be formed, for example, by the base and/or by the side wall of the chamber. Moreover, it is advantageous if the hollow space is open on one side and the blade and/or the blade element protrudes through this open side into the hollow space. The open side is the side facing toward the second connecting means. 
         [0043]    The hollow space is advantageously separated from the inside of the chamber and/or the mixture component by walls. These can be formed by the base and/or the side wall of the chamber. 
         [0044]    Expressed more generally, it can be advantageous if the blade element and/or the blade are arranged completely or partially:
   within the side wall of the chamber or within the prismatic body (particularly circular cylinder) defined by the side wall of the chamber and/or   on the side facing toward the inside of the chamber of a plane defined by the chamber base (or at least by the part thereof to be opened by the blade in a circular manner) or on this plane.   
 
         [0047]    As a result, it is possible for the opening of the base to be done through a rotational movement of the chamber relative to the adapter without a movement of the chamber toward the adapter and/or into same occurring or having to occur. According to one embodiment, the container is characterized in that
   the blade is embodied so as to detach the base of the chamber along its edge only partially from the chamber upon rotation of the chamber, the rotation of the chamber relative to the adapter being limited with respect to the maximum rotation angle for this purpose,   the blade element connected to the adapter has a flow opening for the mixture component, the blade being arranged on the edge of the flow opening,   the flow opening narrows in the direction of the second connecting means, thus forming a funnel, a recess for receiving the edge of the opening of the second container being provided between the funnel and the side wall of the adapter,   the chamber has a projection on its outside, with an outer diameter of the chamber at the location of the projection being greater than an inner diameter of the adapter on the side facing toward the chamber, the projection enclosing the chamber at least in part along its periphery.   
 
         [0052]    Also disclosed herein are the use of the container described in this document and a method for adding a mixture component to a second container using the container described in this document. 
         [0053]    In the abovementioned method and in the abovementioned use, the adapter may be attached by means of the second connecting means to the opening of the second container (particularly screwed), the chamber is rotated relative to the adapter or at least toward it and/or moved into same, the blade opens the base of the chamber and the mixture component flows from the chamber via the adapter into the second container. 
         [0054]    According to one embodiment, the abovementioned use and the described method contain as steps one or more actions that have been described in the form of the suitability, capabilities or characteristics of the container. 
         [0055]    In addition, a method for filling the container described in this document with a mixture component is also disclosed herein. This method is advantageously characterized in that the filling the chamber with the mixture component is done through a second opening (fill opening) that is different from the opening in the flow channel that is sealed by the base. Ideally, the fill opening lies opposite the opening in the flow channel. After filling of the container or of the chamber with the mixture component, the fill opening can be sealed, for example, by a sealing film, particularly a hot-sealing film. Optionally, the seal of the fill opening can be opened or removed after the base of the chamber has been opened by the blade and the mixture component has been fed to the second container through the opening formed in this way in the flow channel. The abovementioned second opening, i.e., the (former) fill opening, can then be utilized as a pour spout for the contents of the second container. As a result, the removal of the container from the second container in order to pour out the contents of the second container can be omitted. The pour spout can also be sealable for its part by a closure such that, after each removal of a sub-quantity from the second container via the pour opening of the container, this pour spout can be sealed. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0056]    The following schematic, scale representations are enclosed: 
           [0057]      FIG. 1   a  shows a longitudinal section through a container with dosed chamber; 
           [0058]      FIG. 1   b  shows a longitudinal section through a container with opened chamber; 
           [0059]      FIG. 2   a  shows a longitudinal section through a container with an expanded chamber with dosed base; 
           [0060]      FIG. 2   b  shows a longitudinal section through a container with an expanded chamber with opened base; 
           [0061]      FIG. 3   a  shows a first side view of a chamber; 
           [0062]      FIG. 3   b  shows a second side view of the chamber; 
           [0063]      FIG. 4  shows a cross section through an adapter; 
           [0064]      FIG. 5   a  shows a chamber with specially designed base from below; and 
           [0065]      FIG. 5   b  shows a side view of the chamber from  FIG. 5   a  and of an adapter. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0066]    The invention is explained below with reference to the drawings for the sake of example. 
         [0067]      FIGS. 1   a  and  1   b  show an embodiment of a proposed container  11  as an attachment for a second container  13 , which is embodied as a bottle in the present exemplary embodiment, The container  11  has a chamber  21  for receiving a mixture component and a part referred to as an adapter  51 . The adapter  51  serves to connect the container  11  to the second container  13  on the one hand in order to add the mixture component to the latter. On the other hand, the adapter  51  fulfills the purpose of opening the chamber  21  of the container  11 , thus releasing the mixture component so that it can flow through the adapter  51  into the second container  13 . The adapter  51  is connected via a first connecting means  61  to the chamber  21  and also has a second connecting means  63  for attachment to the second container  13 . The second connecting means  63  is a thread, particularly an internal thread, for attachment to a corresponding thread, particularly an external thread, at the opening of the second container  13 . The latter is generally a bottle with a neck or port having the described thread. The first connecting means  61  enables the chamber  21  to move toward the adapter  51 . In the present example, the chamber  21  can be moved into the adapter  51 , the first connecting means  61  producing a restraint-guided rotational movement of the chamber  21  relative to the adapter  51  upon convergence of the chamber  21  and the adapter  51 . Expediently, both the adapter  51  and the chamber  21  are substantially cylindrical at theft mutually facing ends, the outer diameter or the outer contour of the chamber  21  at the described ends corresponding substantially to the inner diameter or the inner contour of the adapter  51 . As a result, the chamber  21  can be partially pushed into the adapter  51 , i.e., into its one opening  55 , and rotated. At the end facing toward the adapter  51 , the chamber  21  has a base  23  with one or more weakened areas or thinned portions  25 . Expediently, the weakened area  25  is substantially circular. It runs substantially along the inner edge of the chamber  21  or at least at a substantially constant distance thereto. The weakened area  25  is embodied so as to cooperate with a blade element  71  which is arranged in the adapter  51  between the first connecting means  61  and the second connecting means  63 . The blade element  71  is stationary and/or immobile with respect to the adapter  51 . The blade element  71  is part of the adapter  51  and/or if the blade element  71  and the adapter  51  are integrally formed. If the chamber  21  now moves toward the adapter  51  or into same, the base  23  comes into contact with the blade element  71 , i.e., with its blade  73 , particularly at the location of the weakened area  25 . Through the rotational movement of the chamber  21 , the blade  73  is guided along the weakened area  73  and opens the base  23  of the chamber  21  in a circular manner. The base  23  remains connected to the chamber  21  at one place in the final position of the blade  73  (i.e., when the base  23  is completely opened). The remaining connection between base  23  and chamber  21  enables the base  23  to fold into chamber  21  or out of the chamber  21 . The base  23  is thus opened without falling off and possibly getting lost. In order to achieve this, various possibilities merit consideration. Expediently, the movement of the chamber  21  into the adapter  51  and/or the rotational movement of the chamber  21  is limited. This can be brought about, for example, by the first connecting means  61 . However, the movement of the chamber  21  into the adapter  51  can also be limited by the cooperation of a projection  41  with the edge  59  of the adapter  51 . The projection  41 , formed by an expansion of the chamber  21  in the present example, extends circumferentially in a circular manner on the side wall  31  of the chamber  21 . When the chamber  21  moves in the direction of the adapter  51 , the projection  41  moves nearer to the edge  59  of the adapter  51 . The distance between projection  41  and edge  59  thus defines and limits how far the chamber  21  can be moved into the adapter  51 , and the projection  41  forms a stop. In the unopened state, a spacer  17  can be provided between projection  41  and edge  59  that prevents a convergence of the projection  41  and the edge  59  and hence a convergence of the blade element  71  and the base  23  of the chamber  51 . The spacer  17  is embodied so as to be removable, particularly removable by hand. The blade element  71  has an opening  56  that enables the mixture component flowing from the base  23  out of the chamber  21  into the adapter  51  to pass toward the opening  56 , which leads to or transitions into the opening  54  of the second container  13 . The opening  56  of the blade element  71  narrows in the direction of flow of the mixing component, i.e., in the direction from the chamber  21  toward the second container  13 . The blade element  71  forms a sort of funnel  75 , with its opening width on the side facing toward the second container  13  being smaller than the opening width of the opening of the second container  13 . In the depicted example, the port or neck of the second container  13  is received (in the (final) state connected to the adapter  51 ) between the side wall  53  of the adapter  51  and the funnel  75 . This prevents the mixture component from getting into the area of the second connecting means  63 , which would contaminate the bottleneck of the container  13 . This is important particularly if the container  11  is to be removed after the mixture component has been added to the second container  13 . After all, there are essentially two use variations. According to a first variant, the container  11  is connected to the second container  13  and, after the addition of the mixture component, a lid  49  (alternatively also a film) that seals the opening  27  of the chamber  21 , removed, and the mixture present in the second container  13  can be poured out through the opening  54  of the second container  13  via the adapter  51  and the chamber  21 . In this case, the container  11  has a safeguard to prevent removal of the container  11  from the second container  13 . According to a second variant, the container  11  is removed from the second container  13  after the addition of the mixture component. In this case, the opening  27  or the presence of the removable lid  49  or of the film is not necessary. A contamination during removal of the container  11  can be prevented by the smaller opening width of the opening  56  in comparison to that of the opening  54  of the second container  13  (independently of the presence of a funnel  75 ). An additional improvement is achieved through the presence of the described funnel  75 . Alternatively or in addition, a provision can be made (also independently of the funnel shape) that the opening  56  of the blade element  71  has an edge protruding into the opening of the second container  13  as shown in  FIGS. 1   a  and  1   b  (blade element  71  protruding into the opening of the second container  13 ). Improved tightness is also achieved through the described measure, and contact between the mixture component and the second connecting means  63  is also prevented. The seals  28  and  29  also comprise additional measures for improving the tightness. The seals  28 ,  29  are annular. The seal  28  extends along the weakened area  25  and can, like in the present exemplary embodiment, be embodied as part of the base  23 . It comes into contact with the blade  73  before or while the blade  73  comes into contact with the base  23  and/or begins to open the base  23 . For example, the seal  28  can be nearer to the blade element  71  than the part of the base  23  corning into contact with the blade  73  or to be severed. For example, the weakened area  25  can be embodied as an area of the base with a lesser thickness. The thinner part of the base  23  can be arranged at a greater distance from the blade  73 . An additional seal  29  is formed by the projection  41  and can also be arranged on, a next to or along the projection. All that is relevant is that the edge  59  cooperate in a sealing manner with the projection  41  or with the part of the chamber  21  with which the edge  59  is in contact in this position during maximum convergence of (or minimum distance between) the chamber  21  and the adapter  51 . 
         [0068]      FIGS. 2   a  and  2   b  represent a slightly modified variant of the container from  FIGS. 1   a  and  1   b.  One difference from the design according to  FIGS. 1   a  and  1   b  is the shape of the chamber  21 . The chamber  21  expanded on the side facing away from the adapter  51 . In particular, the inner diameter of the chamber  21  at that end is greater than the outer diameter of the adapter  51 . In this way, a substantial increase in volume can be achieved without greatly increasing the length of the container  11 . 
         [0069]      FIGS. 3   a  and  3   b  show two different views of the outside of the chamber  21  (corresponding to the chamber shown in  FIGS. 1   a  and  1   b ). Clearly visible are the first connecting means  61  and the part thereof that is arranged on the chamber  21 . Said part has a (first) guide track  33  that extents in the shape of a helix or a helicoid along the outside or side wall  31  of the chamber  21 . Such a guide track  33  expediently runs around the chamber less than two times, particularly less than one time or one-half time. In the present exemplary embodiment, this guide track  33  defines the rotation angle of the chamber  21  relative to the adapter  51  necessary for the complete opening of the chamber  21 . In particular, the guide track  33  forms a stop  76  at its end for the sliding projection  57  described further below, whereby the rotation angle is limited. Expediently, two or more such guide tracks  33  are provided, it being possible for them to be arranged in regular intervals along the periphery of the chamber  21 . In  FIGS. 3   a  and  3   b,  two guide tracks  33  of this type are provided on opposite sides of the chamber  21 . This helical guide track  33  is used to screw the chamber  21  into the adapter  51 , thus bringing the base  23  of the chamber  21  into contact with the blade  73  and moving it along the weakened area  25  in order to open the base  23 . For this purpose, the adapter  51  is equipped with one sliding projection  57  (cf.  FIG. 4 ) per guide track  33 . Upon rotation of the chamber  21 , it moves along the helical guide track  33 , thus establishing a connection between the chamber  21  and the adapter  51 , which enables the abovementioned rotatability of the chamber  21  relative to the adapter  51 . Expediently, a step  37  is provided at the end of the helical guide track  33  nearer to the base  23  and/or further from the base  23  that offers a resistance to the movement of the sliding projection  57  in the guide track  33  (or beyond the step). After the resistance is overcome—through a rotation in a predetermined direction in the present exemplary embodiment—the sliding projection  57  reaches a recess  77  embodied so as to correspond to the sliding projection  57 . The stop  76  that prevents further rotation of the sliding projection  57  is arranged in the direction of rotation. Counter to the direction of rotation, the step  37  is embodied such that the sliding projection  57  can leave the recess  77  in a restraint-guided manner in the direction of the helical guide track  33  under resistance but without destruction. Depending on the structure of the step  37 , the sliding projection  57  can be reversibly or irreversibly fixed in the recess  77 . The steps  37 , or the recesses  77  in conjunction with the sliding projections  57 , bring about a stabilization or fixation of the position of the chamber in its position nearest and/or furthest from the adapter  51 . Optionally, an additional (and shorter) guide track  35  is present for each helical guide track  33 . This second, shorter guide track  35  also runs along the periphery of the chamber  21  on its outside  31  but expediently at a constant distance to the base-side end of the chamber  21 . The shorter guide track  35  transitions into the helical guide track  35 , particularly in the area of the end of the helical guide track  35  further from the base  23  of the chamber  21 . This results in a fork. If the chamber  21  is rotated in the opposite direction after the rotating and opening of the base  23 , the sliding projection  57  moves from the end of the helical guide track  33  into the shorter guide track  35  and reaches its free end, which forms a stop  76  for the sliding projection  57 , thus enabling transmission of the torque to the adapter  51 . In this way, the chamber  21  and the adapter  51  can be removed from or screwed off of the second container  13  merely by rotating the chamber  21 . 
         [0070]    In the exemplary embodiment shown here, the chamber  21  and the adapter  51  with blade element  71  are each embodied in a single piece and made of plastic as a plastic injection-molded part, so that large quantities can be manufactured cost-effectively. 
         [0071]      FIGS. 5   a  and  5   b  show an embodiment of a container. Its distinctiveness lies in a niche  22  formed by the chamber  21  in which the blade  73  is arranged before the opening of the base  23  by the blade  73 . For the sake of clarity, the cut edges are without hatching. The niche  22  can be formed by the base  23  and/or the side wall  31  of the chamber  21 . The parts of the chamber  21  that form the niche  22  can also be referred to as a niche wall. Expressed generally, it can be advantageous if the blade  73  extends from one side of the plane  30  defined by the part of the base  30  to be opened in a circular manner, particularly before the opening of the base  23  by the blade  73  of the blade element. This makes it possible for the opening of the base  23  to occur as a result of a rotational movement of the chamber  21  relative to the adapter  51  without a movement of the chamber  21  toward the adapter  51  and/or into same occurring or having to occur. If the blade  73  is rotated relative to the adapter  51 , it first severs the niche wall. Since the niche wall transitions into the base  23  of the chamber  21 , the blade  73  then slides into the base  23  and severs it along its edge. A part  24  of the niche wall remains connected to the base  23  and the side wall  31  of the chamber  21 . A rotation angle of the chamber  21  relative to the adapter  51  can be limited. Since the base  23  remains connected to the side wall  31  of the chamber  21 , it cannot be lost or get into the second container, even if the rotation angle of the chamber  21  relative to the adapter  51  is greater than 360°. The niche  22  can generally also be a hollow space.