• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A container (10) comprises a first chamber (1) and a second chamber (2), wherein the second chamber of a container bottom (21), a container wall (22) and a lid (23) is limited. The first chamber (1) is located inside the second chamber (2). The first chamber (1) has a chamber wall (11) through which the volume of the first chamber (1) from the volume of the second chamber (2) is separable. The second chamber (2) may contain a food. The first chamber (1) contains a first reagent (12) and a second reagent (13). The first reagent (12) can be heated with the addition of the second reagent (13) in such a way that the heat generated in the first reagent (12) can be released to the food via the chamber wall (11). The first reactant (12) is separated from the second reactant (13) when no heat is to be generated. An adsorbent (14) is disposed above the first reactant (12) so that vapor which is generated in an exothermic reaction in the first reactant (12) by contact with the second reactant (13) is receivable by the adsorbent (14) Heat can be generated, which is deliverable from the adsorbent (14) via the chamber wall (11) to the second chamber (2) and optionally to the food therein.
    公开号:CH710686A2
    申请号:CH00119/15
    申请日:2015-01-30
    公开日:2016-08-15
    发明作者:Umbricht Ruedi
    申请人:Can Man Ruedi Umbricht；
    IPC主号:
    专利说明:

    The invention relates to a container for food, food, medicines, comprising a device for heating the food. The container for food contains a heating element which can be activated by the user at any time at any location and heats the food contained in the container. The heater is activated by the user initiating an exothermic reaction of at least two reagents. Frequently, calcium oxide and water are used for this purpose. The two substances are stored separately in the container. If the food in the container is to be heated, the calcium oxide is brought into contact with the water.
    Containers that utilize the effect of an exothermic chemical reaction to produce heat in a food container itself are known in the art. For example, US5461867A shows a container containing a heating element contained in a chamber filled with a beverage. The heating element contains a heating chamber, which is separated from the beverage chamber via a thermally conductive wall. The heating chamber extends below the container lid into the beverage chamber and is designed as an aluminum pot which is connected to the lid. In the aluminum pot is calcium oxide, a solid that exothermically reacts when exposed to water, thereby releasing heat. For this purpose, a water tank is mounted below the lid above the solid in the heating chamber and separated from the same. The lid contains an actuator element which has cutting elements aligned in the direction of the bottom of the water chamber. When the user presses the lid, the cutting element pierces the bottom of the water container and the water runs on the underlying calcium oxide. As soon as the water comes into contact with the calcium oxide, the exothermic reaction starts. The heat given off to the food by this exothermic reaction via the conductive aluminum wall of the heating chamber can heat the beverage. A disadvantage of this solution is that the water impinging on the surface of the calcium oxide generates a reaction on this surface and generates heat on the surface. As long as the reaction proceeds on the surface, the water does not penetrate into the core of the bed of silica. If there is a great deal of heat, the water can vaporize on the surface and is no longer available for further reaction. Therefore, various efforts have been made in the prior art to improve the contact between the water and the calcium oxide. FR 2 819 492 A shows a possible approach to increase the reaction surface available to the reactants. According to this solution, the water flowing through the membrane in the direction of the solids fill is conducted into a plurality of tubes which have a lattice structure. The water flows through the grid openings in the solid. This improvement makes it possible to quickly introduce water into high solids beds.
    A disadvantage of using calcium oxide as a reactant and water is in the formation of steam, which can be due to the evolution of heat in the exothermic reaction, since the water can evaporate through the heat generated. In order to avoid the risk of damage to the container due to overpressure or the risk of burn injuries, a large number of solutions have been proposed, for example steam discharge valves or discharge devices, as shown, for example, in US Pat. No. 6,502,407 B1. However, the development of steam can take on considerable proportions, which can cause a risk of burns for users of the system.
    Therefore, there is a need for solutions in which the evolution of steam can be avoided and / or the steam can be usefully used so that no danger emanates from the container for the user, even if it comes to the evolution of steam by the exothermic reaction , Although it is known from US 2004 0 154 614 A to provide a container in which a food chamber is provided separately from a reaction chamber containing two reagents, which are stored in the storage state in separate sub-chambers. When the food is to be heated, the reagents are brought into contact. Due to the exothermic reaction, water vapor is generated, which is introduced via a connecting channel between the reaction chamber and the food chamber. This connection channel is opened only when the steam has built up sufficient pressure in the reaction chamber to open a flap arranged in the channel with flexible legs. The food chamber is open at the top so that the vapor can pass through the food and heat the food on its way. A disadvantage of this arrangement resides in the fact that the vapor is formed by the chemical reaction, which could lead users to reservations regarding the hygiene or the possible contamination of the food by the reagents.
    Therefore, in US 6,234,165 B1, the vapor is brought into contact only indirectly with the food, namely via a partition wall. Since the evolution of steam results in an increase in volume, a not inconsiderable pressure builds up in a closed container when steam is evolved. Therefore, provisions have been made by most manufacturers to prevent the development of steam in the reaction chamber or in the case of vapor evolution through a passage in the environment, which is secured with a pressure relief valve or the like, which can release the passage when the maximum allowable pressure is exceeded. Another approach is shown in US 4,784,113. According to the teaching of US 4,784,113, a reaction chamber is filled with a heat-generating material, which is formed as granules. In this granulate, a water bag is added, which is surrounded on all sides by granules. When the water bag is opened by operating a tear tape, the water flows into the below the water level granules and heats it. The amount of heat generated not only leads to the heating of the food but also to the evaporation of the water. This water vapor is absorbed again by the granules, which are located laterally and above the water bag, whereby further heat is generated, which is delivered to the food. The vapor absorption can thus prevent the buildup of overpressure.
    However, the arrangement according to US 4,784,113 allows only the heating of the bottom of the food chamber. Furthermore, pressure may build up in the reaction chamber if, due to the exothermic reaction, the granules swell to a volume which exceeds the volume of the water bag. Therefore, it is proposed in WO 2014 044 609 A1, not only to fill the ground with granules, but also the side walls of the container, so that a heat transfer is made possible not only on the ground, but also on the side walls of the container. In WO 2014 044 609 A1, a wall permeable to water vapor is used in order to spatially separate the granules whose reaction with water leads to the formation of steam from the adsorbent. In addition, a distance is provided between the water vapor permeable wall and the granules, which can be filled successively by swelling granules. This wall has the advantage that the reactant and the adsorbent can not come into contact with each other. Because adsorbents and reagents differ, inadvertently mixing them, for example, when tilting the container, could potentially interfere with the course of the reaction or cause local overheating. For this reason, WO 2014 044 609 A1, a water vapor permeable wall is provided to separate adsorbent and reactant from each other. The adsorbent used is a zeolite. In order to avoid that water in liquid form passes through the water vapor permeable wall, this wall may have a water-repellent coating or be hydrophobicized.
    Instead of adsorbing the water vapor, condensation can also take place thereof, as disclosed in US 2005 000 506 A1. The water vapor flows through a granular calcium oxide in an annular space and is discharged from there into a space filled with steel wool. On the surface of the steel wool, the steam can condense with release of heat and drips back into the granules.
    All these previously known solutions have in common that they require a multi-part container. Therefore, there is a need for a container which has a simple structure. Known solutions require on the consumer side, so the lid area, a tear tab, which is stamped by a relatively complex manufacturing process, which is used for commercial beverage cans. On the opposite side, the container bottom, there is a large opening in which the food is filled. This opening is closed after filling with the food. This means that this container must consist of at least three parts. Alternatively, the filling with food can also be done over the lid area, the lid together with the tearing device is subsequently connected to the container wall. In this case, the container consists of at least two parts, namely on the one hand, the container wall with the container bottom and on the other hand, the lid with a tearing device.
    Although a heating element may be directly connected to the container bottom, however, a plurality of chambers are usually provided, since it must be ensured that the components of the heating element do not come into contact with the food, but the heat through a heat-conducting wall from Heizelementraum is transferred to the receiving space for the food.
    Such a container is therefore complicated to manufacture, since not as in the two-part container thermoforming can be used, but a method which a separate production of the container bottom with the chambers for the reactants and a subsequent assembly of the container bottom prepared with the container wall requires.
    An object of the invention is to design a container with an integrated heating element, wherein the container bottom in a single step together with the container wall by known technologies, such as deep drawing, is easy to produce. Another object of the invention is to use the resulting in the exothermic reaction steam for heat transfer to the food.
    Another object of the invention is to use the provided heat energy optimally for the heating of the food.
    The solution of the objects of the invention is achieved by the features of claim 1. Further advantageous embodiments are subject matter of claims 2 to 10.
    A container comprises a first chamber and a second chamber, wherein the second chamber is bounded by a container bottom, a container wall and a lid. The first chamber is located within the second chamber. The first chamber has a chamber wall through which the volume of the first chamber can be separated from the volume of the second chamber. That is, between the first chamber and the second chamber no exchange of gaseous, liquid or solid materials takes place. The second chamber may contain a food. The first chamber contains a first reactant and a second reactant, wherein the first reactant is separate from the second reactant when no heat is to be generated. That is, the first reactant and the second reactant are stored at different locations so that they do not come into contact with each other. An adsorbent is disposed above the first reactant such that vapor producible by an exothermic reaction in the first reactant through contact with the second reactant is receivable by the adsorbent. In this case, heat can be generated, which can be delivered from the adsorbent via the chamber wall to the second chamber and optionally the food located therein. The first chamber thus forms a tubular reaction space for the first reactant and the second reactant when the separation thereof is interrupted. The separation is provided by a separating element, which may be formed, for example, as a container enclosing at least one of the reactants or as a bag enclosing the reactant. Alternatively, the separation can take place by means of a separating film which is peripherally connected to the chamber wall. Thus, the separator causes the first reagent not to come into contact with the second reagent as long as the separator is intact, that is, liquid-tight and gas-tight.
    According to one embodiment, the container bottom and the container wall are integrally formed. That is, the container bottom and the container wall are made of a single piece, for example, made of a sheet metal element by a forming technique. The filling opening for such a container is in this case at the same time the discharge opening. The chamber wall and the floor may also be integrally formed according to an embodiment.
    In particular, the first chamber may be formed as a cylindrical, also in the deep-drawing process on one side closed container. The first chamber may also be referred to as a heating element, which receives all the elements that are necessary for an exothermic reaction. The first chamber is ideally made of aluminum or tinplate and as thin-walled as possible to ensure the best possible heat dissipation from the inside to the outside of the contents of the second chamber. The first chamber is thus arranged in an inner container. The food is in the second chamber, which is located in the outer container. The second chamber is thus annular. That is, it encloses the inner container annular. According to one embodiment, the first chamber extends to the container bottom. That is, the inner container, which is formed by the chamber wall and the bottom, extends over substantially the entire height of the outer container. The container bottom may have a concave shape. The floor may also have a concave shape. In particular, the concave shape of the container bottom and the bottom can coincide with each other, so that the bottom can rest positively on the container bottom. In particular, the floor can rest centrally on the container bottom. The first chamber and the second chamber may have a common center axis. That is, the first chamber is bounded by a rotationally symmetrical inner container and the second chamber by a rotationally symmetrical outer container.
    According to one embodiment, the chamber wall is held in the lid. This means that the chamber wall can be removed together with the lid when the food is warmed up and thus ready for consumption. Since the chamber wall encloses the first chamber together with the bottom, the entire first chamber is removed with the lid. The lid is detachably connected to the container. That is, the container is opened by removing the lid and can be closed by placing the lid again. For this purpose, in particular a snap connection, a screw connection, an adhesive connection between the lid and container is provided. In particular, the first chamber may be suspended in the lid. For this purpose, the chamber wall may be provided at its lid-side end with a holding device. This holding device may for example be formed as a flange-like projection which engages in a corresponding recess in the lid. According to one embodiment, the lid may have a lid body having a through hole. This through-hole can be arranged in particular centrally in the lid. The inner diameter of this through hole may be smaller than the outer diameter of the chamber wall. According to this variant, the chamber wall is held in the lid body by means of a press fit. According to a further variant, the upper end of the chamber wall can be permanently connected to the lid body. For example, the upper end of the chamber wall can be glued to the inside of the through hole. According to a further variant, the chamber wall may comprise at its upper end a flange-like extension. This flange-like extension rests on a corresponding shoulder in the lid body. The chamber wall is closed by a flexible cover. The cover may in particular be made of an elastic material or contain an elastic material. When the user applies pressure to the elastic cover, the chamber-side surface of the cover contacts the receptacle for the second reagent or the adsorbent. The pressure on the receptacle or adsorbent releases the separation between the first and second reactants. The exothermic reaction starts when the first and second reactants are contacted. The first reagent can be heated with the addition of the second reagent so that the heat generated in the first reagent can be delivered to the food via the chamber wall.
    According to a further embodiment, the lid-side end of the chamber wall is received in the lid body such that a part of the lid body forms the closure of the first chamber on the lid side. The intended for the chamber wall bore or opening is thus not continuous, but formed as a blind hole. The lid-side end of the chamber wall can thus be held in the lid body by means of a clamping mechanism, by gluing, as well as by a positive connection.
    The suspension of the chamber wall and thus the entire first chamber in the lid has a further advantage. It is not mandatory that the first chamber be supported on the bottom of the tank. The first chamber can thus be completely immersed in the food, whereby a heat release is not only along the chamber wall, but also on the chamber bottom is possible.
    Another advantage of the present arrangement of the second chamber around the first chamber is that the heat generated first reaches the food before it reaches the container. This means that the container heats up less quickly. In addition, no heat can flow away via the container wall, which would be the case if the heating element would extend along the container bottom and / or along the container wall. Therefore, by means of the present solution, the heat energy is transferred to the food almost loss-free.
    Heat generation is initiated by the applied pressure exerted by the user on the lid side of the container or by pressing a pressing member by the user. Therefore, the container side, which is disposed opposite to the lid, has no actuator elements, by means of which it is ensured that the first and second reactants come into contact with each other. Also for this reason, the container can be easily made in forming technology.
    In one embodiment, the second reactant is disposed in a reactant tank above the first reactant. In particular, the adsorbent may comprise a porous compact, for example a zeolite. According to one embodiment, the first reactant may be formed as granules, which in particular contains sharp-edged grains. A connecting pipe may extend from the reactant tank to at least the first reactant, wherein the connecting pipe includes a closing element, so that in the open state, the second reactant can be introduced into the first reactant by means of the connecting pipe. According to one embodiment, the connecting tube may have a plurality of openings on the shell side.
    The second reactant is accommodated according to this embodiment in a small pressure vessel which is equipped with the valve and fitted in the lid and sealed. The cover may include a pressing element, which may be formed for example as a flexible portion or as a wing screw. In this solution, by pressing a flexible portion, such as a flexible cover, in a central region of the lid, the user can apply pressure to the pressure container, thereby opening the valve. A tube connects to the valve. The tube may lead to a manifold feeding a plurality of tubes in the first reagent. The tube extends with one, the lower end to the bottom of the first chamber, which forms the heating element. The tube is supported on the ground. A number of openings in the tube ensures that the first reagent, so for example, the water or the aqueous solution in the pressure vessel when operating the valve can penetrate into the poured granules. In this way, a fast and optimal distribution of the liquid in the first reaction material is achieved.
    Since the fit in the lid must allow a sliding of the pressure vessel, the chamber wall after filling or equipping with the first reagent and located in the pressure vessel second reactant and the adsorbent at the open end must be mechanically handled, so that a projection is formed , The projection prevents the pressure vessel can leave the first chamber. The pressure vessel can only be pushed in the direction of the second reagent. The pressure vessel can thus not move outward if the container is handled improperly, even if the lid has been removed from the container. The production of the projection can be done by means of a simple mechanical forming process. Another possibility is to provide a tear-off protective membrane as a flexible portion, which is designed such that it is able to absorb corresponding forces, the slipping out of the pressure vessel.
    According to one embodiment, the reagent tank is formed as a flexible bag, which is arranged between the first reagent and the adsorbent. The surface of the flexible bag may be severable by at least one of the granules of the granules when the granules are pressed onto the surface of the bag.
    According to one embodiment, the first reactant may be disposed above the second reactant. The reagent container may be formed as a flexible bag which is disposed between the first reagent and the bottom.
    According to this embodiment, an internal thread is arranged in the lid. On the configured as a compact adsorbent pressure can be exerted on the adsorbent and the first reagent by means of a pressure element, which is formed in this embodiment as a hand-operated thumbscrew. The first reactant arranged under the adsorbent is a granulate having as sharp-edged grains as possible. By the applied by the actuation of the thumbscrew pressure and the nature of the granules, a container in which the second reactant is received, are made to burst. In particular, it may be a water tank. The container may be formed as a bag, for example as a thin plastic bag or inside paper-coated paper bag. After destruction of the container wall or bag wall, the second reactant exits into the environment and the exothermic reaction is triggered.
    According to one embodiment, the container bottom may have a projection which engages in a centering recess of the bottom of the first chamber.
    According to each of the preceding embodiments, the lid may include a flexible portion which transmits the manual contact pressure to the pressure vessel or the adsorbent. According to each of the embodiments, the lid may have a bore for receiving the chamber wall. In this hole, a circumferential seal can be arranged. The lid may include a receptacle for the container wall. The lid has the function of sealing the first chamber and the second chamber largely gas-tight. If the container is made of metal or a plastic, so for example, the connection is ensured by a thread, in particular in the configuration of an external thread on the container wall and a corresponding internal thread on the lid. The chamber wall is pressed or fitted through a bore or opening equipped with seals and / or held in position in the end position by a snap-in device. The shape of the lid can change depending on the embodiment and can also be formed by optical or haptic aspects. Preferably, the lid is made of a suitable plastic, in particular in an injection molding process, since this allows the manufacturer of the container or the marketer of the food or drink in the container the greatest possible freedom of form.
    The container may thus in particular be a food container. The foods can be food or drinks. For example, soups, coffee, chocolate-containing drinks can be heated with the container according to the invention. This means that the container is particularly suitable for foodstuffs which are heated to temperatures of more than 100 ° C., ie for foods which can undergo a cooking process or which, as in the case of coffee, are exposed to such high temperatures for the extraction of coffee ingredients. to ensure increased coffee enjoyment. According to one embodiment, therefore, a container can be used, the container wall consists of a heat-insulating material or contains a layer of heat-insulating material. In particular, the container wall may contain at least one layer from the group of papers, cardboard, foams. The food which is heated by the exothermic reaction releases the heat to the container wall. If the user lets the container stand for a while, the temperature of the container wall will approach the temperature of the contents of the second chamber when the container wall is made of a good heat conducting material, such as aluminum or tinplate. Therefore, the user can no longer hold the container with his hands and the food begins to cool. To prevent these effects, the container wall may contain a heat-insulating material or a heat-insulating layer. Of course, several different heat insulating layers can be provided. Also, the lid may include a heat-insulating layer or made of a heat-insulating material.
    The heat is generated as described above by an exothermic reaction. At least one first substance, the first reagent and a second substance, the second reagent, are involved in this exothermic reaction. The first reactant may comprise a solid containing, for example, calcium oxide. The second reactant may comprise a fluid containing, for example, water. The water-containing fluid may contain, for example, glycol, ethanol, ethylene glycol or acids, in particular an acidic aqueous solution. The solid may contain at least one component from the group of calcium oxides, potassium oxides, phosphoric acids, potassium permanganates, sodium salts, in particular sodium nitrates. The solid may also be provided with additives such as glycerine, metal salts.
    In other embodiments, the first and second reactants contain no hydrous fluid but heat water to generate steam. Such first or second reactants may contain at least one of the components from the group of salts, for example potassium permanganate, iron, magnesium, iron-containing compounds, magnesium-containing compounds, glycerol or its compounds.
    The container and all coming into contact with the food components of the first chamber and the lid are made of materials that are approved for the storage of food and a heat resistance of up to at least 100 ° C, preferably up to 120 ° C have.
    Preferably, the inner container, which the first chamber, which forms the heating element, constructed so that upon removal of this inner container from the outer container, a large, rimless opening outer container is formed. This large, rimless opening can be used as a drinking opening, similar to a cup or a glass. Another advantage of the large opening is that the outer container, thus only this needs an opening and the outer container via this opening by means of known filling method is filled. As a result, the outer container can also be produced by deep drawing.
    An advantage of the inventive solution is that the drinking or emptying opening after removal of the heating element from the outer container has improved in terms of hygienic aspects properties. The interior of the outer container is not accessible from the outside, as long as the inner container containing the first chamber is in the outer container. In a conventional beverage can, which is provided with a tear-open, however, is not without making appropriate bacteriological investigations, it is ensured that the state of the outer surface from a hygienic point of view is flawless. Usually, it is not possible to determine where the beverage can was stored accurately or who touched the beverage can.
    An advantage of a discharge opening without internals is the ability to completely empty the outer container when needed. Optionally, the interior of the outer container can also be easily cleaned. Basically, there are a larger number of design options for an inventive drinking glass-like opening.
    The container according to the invention will now be described with reference to some embodiments. Show it<Tb> FIG. 1 <SEP> a section through a container according to a first embodiment,<Tb> FIG. 2 <SEP> a section through a container according to a second embodiment,<Tb> FIG. 3 <SEP> a section through a container according to a third embodiment,<Tb> FIG. 4 <SEP> a section through a container according to a fourth embodiment,<Tb> FIG. 5 <SEP> a section through a part of a container according to a fifth embodiment,<Tb> FIG. 6 <SEP> is a section through a part of a container according to a sixth embodiment.
    Fig. 1 shows a first view of the container 10 according to a first embodiment in a partially sectioned view. The container according to FIG. 1 has a first chamber 1 and a second chamber 2. The container is cylindrical according to this embodiment. Other cross-sectional shapes, such as polygonal cross-sectional shapes, for example, rectangular cross-sectional shapes are equally permissible. The second chamber 2 is bounded by a container bottom 21, a container wall 22 and a lid 23. The first chamber 1 is located within the second chamber 2. The first chamber 1 has a chamber wall 11, through which the volume of the first chamber 1 from the volume of the second chamber 2 can be separated. The second chamber 2 may contain a food. The first chamber 1 contains a first reactant 12 and a second reactant 13, the first reactant 12 being separate from the second reactant 13 when no heat is to be generated. In one embodiment, the first reactant contains water, the second reactant contains calcium oxide.
    An adsorbent 14 is disposed above the first reactant 12, so that steam, which is generated in an exothermic reaction in the first reactant 12 by contact with the second reactant 13, from the adsorbent 14 is receivable. The generated heat can be released from the adsorbent 14 via the chamber wall 11 to the second chamber 2 and optionally the food contained therein.
    In particular, the container bottom 21 and the container wall 22 may be integrally formed. The container bottom 21 and the container wall 22 are produced as a shaped part, for example by deep drawing. In particular, the first chamber 1 can be held by means of a flange-like extension in a through hole of the cover body. As a result, the first chamber 1 is not only fixed in position relative to the lid, but it is held in the lid body. The first chamber together with the reactants can thus be removed together with the lid from the second chamber 2. The container can be used after removal of the first chamber as a cup or soup container or food vessel, so that the user does not have to refill the contents of the container. This avoids that the food cools down quickly, since the heat stored in the container is still available, especially if the container wall and / or bottom contain a heat-insulating material.
    If the food or at least the second chamber to be heated, the first reagent 12 is heated by adding the second reagent 13 so that the heat generated in the first reactant 12 can be delivered via the chamber wall 11 to the food. The adsorbent 14 comprises a porous compact, for example a zeolite. The first reactant 12 may be formed as granules, which contains in particular sharp-edged grains. The reactant 12 may also comprise multiple layers, wherein at least one of the layers may contain granules.
    The second chamber 2 is annular, that is, it extends around the chamber wall 11 of the first chamber 1 around. According to FIG. 1, the first chamber 1 extends to the container bottom 21. That is, the chamber 11 can be supported on the container bottom. The chamber 11 has its own bottom 15, which rests on the container bottom, which has a concave shape. Since the bottom 15 also has a concave shape, it can be positively connected to the container bottom 21. According to FIG. 1, the bottom 15 rests centrally on the container bottom 21. Therefore, a centering bottom 11 takes place in a central location.
    The second reactant 13 is disposed in a reactant tank 16 above the first reactant 12. A connecting pipe 17 extends from the reagent tank 16 to at least the first reactant 12. The connecting pipe 17 includes a closing element, not shown. In the open state, the second reaction means 13 can be introduced into the first reactant 12 by means of the connecting tube 17. The connecting tube has a plurality of openings on the shell side.
    The lid of the container rests on the first chamber 1 and the second chamber 2. The first chamber is received in the lid 23. The lid 23 includes a flexible portion 24. This flexible portion 24 allows the user to move the reagent container 16 downward by manual actuation along the inside of the chamber wall 11. Since the connecting pipe 17 is supported on the bottom 15, a valve disposed in the interior of the reagent container flap is opened. As a result, a communication path for the second reactant 13 to the communication pipe 17 is opened. The second reactant 13 flows into the connecting tube and can enter the first reactant 1 through the bores located in the connecting tube 17 and / or through the lower open end of the connecting tube.
    The cover 23 thus has a bore 25 for receiving the chamber wall 11. In the bore 25, a circumferential seal 26 is arranged to close the second chamber fluid-tight, so that the food can not leave the second chamber. The lid 23 contains a receiving element 27 for the container wall 22. According to FIG. 1, the lid is screwed onto the container wall 22. For this purpose, an external thread is arranged on the container wall 22, which is in engagement with a lid attached to the corresponding internal thread, when the lid 23 closes the container 10. Between the container wall 22 and the lid, a seal 28 is also arranged.
    Fig. 2 shows a container according to a second embodiment, wherein the same or identical parts bear the same reference numerals. The container according to FIG. 2 has a first chamber 1 and a second chamber 2. The container is cylindrical according to this embodiment. Other cross-sectional shapes, such as polygonal cross-sectional shapes, for example, rectangular cross-sectional shapes are equally permissible. The second chamber 2 is bounded by a container bottom 21, a container wall 22 and a lid 23. The first chamber 1 is located within the second chamber 2. The first chamber 1 has a chamber wall 11, through which the volume of the first chamber 1 from the volume of the second chamber 2 can be separated. The second chamber 2 may contain a food. The first chamber 1 contains a first reactant 12 and a second reactant 13, the first reactant 12 being separate from the second reactant 13 when no heat is to be generated. In one embodiment, the first reactant contains water, the second reactant contains calcium oxide. An adsorbent 14 is disposed above the first reactant 12 and above the second reactant 13, so that vapor which can be generated in an exothermic reaction in the first reactant 12 by contact with the second reactant 13 is absorbable by the adsorbent 14. The generated heat can be released from the adsorbent 14 via the chamber wall 11 to the second chamber 2 and optionally the food contained therein.
    The first reagent 12 is arranged above the second reagent 13 as shown in FIG. The second reactant 13 is located in a reactant tank 36. The reactant tank 36 is formed as a flexible bag which is disposed between the first reactant 12 and the bottom 15.
    In particular, the container bottom 21 and the container wall 22 may be integrally formed. The container bottom 21 and the container wall 22 are produced as a shaped part, for example by deep drawing. The second chamber 2 is annular, that is, it extends around the chamber wall 11 of the first chamber 1 around. According to FIG. 1, the first chamber 1 extends to the container bottom 21. That is, the chamber 11 can be supported on the container bottom. The chamber 11 has its own bottom 15, which does not rest on the container bottom as in FIG. The chamber wall is therefore taken captively in the lid 33. Alternatively, the chamber wall 11 may also be designed analogously to the embodiment shown in FIG. Also, the lid may in this case correspond to the lid 23 as shown in FIG.
    If the food or at least the second chamber to be heated, the first reagent 12 is heated by adding the second reagent 13 so that the heat generated in the first reagent 12 can be delivered via the chamber wall 11 to the food. The adsorbent 14 comprises a porous compact, for example a zeolite. The first reactant 12 may be formed as granules, which contains in particular sharp-edged grains. The reactant 12 may also comprise multiple layers, wherein at least one of the layers may contain granules.
    The surface of the flexible bag is severable by at least one of the granules of the granules when the granules are pressed onto the surface of the bag.
    The reagent tank 36 is formed as a flexible bag which is disposed between the first reactant 12 and the bottom 15. When the exothermic reaction for heat generation is to be initiated, the surface of the flexible bag is severed by at least one of the granules of the granules when the granules are pressed onto the surface of the bag. The granules are pressed onto the surface of the reagent container by shifting the adsorbent 14, which forms a porous compact, by operating a pressing member 24 toward the first reaction medium. The first reactant is thereby pressed and the contact pressure from the adsorbent 14 to the first reactant 12 and transferred from the first reactant 12 to the reagent tank 36. The sharp-edged granules of the first reagent 12 pierces the skin of the flexible bag, so that its contents escape into the interior of the chamber 11. As a result, the second reactant 13 comes into contact with the first reactant 12, so that the exothermic reaction can be initiated.
    The dead weight of the first reagent 12 and the adsorbent 13 presses the flexible container further together so that the contents of the flexible container can be completely emptied.
    The pressing member 34 is formed in this embodiment as a wing screw, which is held in a cover arranged in the inner thread. The chamber-side end of the thumbscrew forms a plunger. This plunger is in contact with the top of the adsorbent 14. By the pressure of the plunger, the adsorbent moves in the direction of the first reagent 12 and the second reagent 13, respectively.
    The cover 33 thus has a bore 35 for receiving the chamber wall 11. The bore 35 is formed as a blind hole. The chamber-side surface of the lid forms the closure of the first chamber 1 and the second chamber 2. The end of the chamber wall 11 is held in the bore 35. For this purpose, a corresponding holding device 39 may be provided, which is not shown in detail in FIG. In the bore 35, a circumferential seal 32 is arranged to close the second chamber 2 fluid-tight, so that the food can not leave the second chamber. The lid 33 contains a receiving element 37 for the container wall 22. According to FIG. 2, the lid 33 is connected to the container wall 22 by means of a snap device 31. Between the container wall 22 and the lid 33, a seal 38 is also arranged.
    In contrast to the exemplary embodiment according to FIG. 2, FIG. 3 shows that the reagent tank 17 is arranged between the reagent 12 and the adsorbent 14. This embodiment is particularly suitable for reactants whose volume increases during the course of the exothermic reaction. As in FIG. 2, the user exerts a contact pressure on the adsorbent forming a piston. The adsorbent is formed as a compact. The reagent tank 17 is formed as a flexible bag. The bottom wall of the bag is pressed by the contact pressure against the surface of the reagent 12. This reagent 12 is designed, for example, as a sharp-edged granules as in the previous embodiments. The tips or edges of the granules sever the wall of the bag facing the granulate. The second reagent can escape from the bag through the holes created during the separation process and spreads to the underlying granules. As a result, the exothermic reaction of the second reactant 13 with the first reactant 12 is initiated. The reactant 12 heats up successively. During the course of the exothermic reaction, the volume of the reactant 12 increases. Therefore, the reactant 12 presses against the floppy bag located between the adsorbent 14 and the reactant 12. The increase in volume can already take place before the steam evolution. As a result of the increase in volume, the flaccid bag is pressed against the underside of the compact containing the adsorbent 14. The sharp edges of the granules also cut through the upper wall of the floppy bag under sufficient pressure to create a passage for the vapor into the adsorbent 14. The steam flows through the bag mutated to the sieve and is then taken up in the adsorbent. Heat is released by the adsorption of the vapor on the surface of the adsorbent formed as a porous compact. This heat can in turn be delivered via the chamber wall 11 to the food in the second chamber. This embodiment is therefore used in a particularly advantageous manner when a swelling reagent 12 is used.
    Fig. 4 shows a section through a container according to a fourth embodiment. The lid 43 is provided with a tearable annular circumferential band 47 which connects the lid to the container wall 22. This tape is attached after filling the second chamber with the food. This will ensure that the food remains intact after filling until consumed, as long as the tape is not tampered with. The band may include an opening aid 49, such as a tear line or tear-off tab, to facilitate the opening of the lid. In particular, the band 47 may be connected to a tear element, such as a ripcord or a tear flap, in order to be able to open the container when removing the food.
    The lid may be equipped as a flexible portion 24 as in the first embodiment with a flexible protective membrane. This section is preferably designed in such a way that it and its connection to the lid surface can absorb corresponding forces that can cause the pressure container to slip out.
    This embodiment can be used particularly advantageously for containers are used, the container wall 22 consists of a heat-insulating material or comprises a layer of heat-insulating material. In particular, the container wall may contain at least one layer from the group of papers, cardboard, foams.
    Fig. 5 shows a fifth embodiment of the first chamber 1 and the second chamber 2, which surrounds the first chamber. In Fig. 5, only the lower part of a container 10 is shown, as shown for example in one of Fig. 1 to Fig. 4. The first chamber is suspended in the second chamber, as already indicated in FIG. The chamber 11 has its own bottom 15, which does not rest on the container bottom, which has a concave shape. Since the bottom 15 also has a concave shape, a lower chamber space is formed, which has a substantially constant height. According to this embodiment, the bottom 15 of the first chamber can be used for heat transfer. According to FIG. 5, the bottom 15 is concentrically related to the container bottom 21. Therefore, the heat transfer takes place uniformly in the second chamber 2 arranged rotationally symmetrically about the first chamber 1.
    Fig. 6 shows a sixth embodiment of the first chamber 1 and the second chamber 2, which surrounds the first chamber. The container bottom 21 has a projection which engages in a centering recess of the bottom 15 of the chamber. The projection is formed according to this embodiment as a centrally located bulge, on which the bottom 15 of the first chamber is held. This embodiment combines the advantages of the embodiment according to FIG. 4 with the advantages of centering the first chamber in the container according to FIG. 1.
    The features of each of the embodiments, in particular the variants for the lid and the design of the bottom and the container bottom can be combined with each other.
    权利要求:
    Claims (10)
    [1]
    A container (10) comprising a first chamber (1) and a second chamber (2), the second chamber being delimited by a container bottom (21), a container wall (22) and a lid (23, 33) the first chamber (1) is located inside the second chamber (2), the first chamber (1) having a chamber wall (11) through which the volume of the first chamber (1) can be separated from the volume of the second chamber (2) wherein the second chamber (2) may contain a foodstuff, the first chamber (1) containing a first reactant (12) and a second reactant (13), the first reactant (12) adding the second reactant (13). is heated so that the heat generated in the first reaction means (12) via the chamber wall (11) is deliverable to the food, wherein the first reaction means (12) from the second reaction means (13) is separated, if no heat is to be generated, characterized characterized in that an adsorbent (1 4) is arranged above the first reaction means (12) so that steam, which in an exothermic reaction in the first reaction means (12) can be generated by contact with the second reaction means (13), is absorbable by the adsorbent (14), heat being producible , which can be dispensed by the adsorbent (14) via the chamber wall (11) to the second chamber (2) and optionally to the food therein.
    [2]
    2. Container (10) according to claim 1, wherein the container bottom (21) and the container wall (22) are integrally formed.
    [3]
    A container (10) according to claim 1 or 2, wherein the adsorbent (14) comprises a porous compact, for example a zeolite.
    [4]
    4. Container (10) according to any one of the preceding claims, wherein the first reaction means (12) is formed as granules, which in particular contains sharp-edged grains.
    [5]
    5. Container (10) according to any one of the preceding claims, wherein the first chamber (1) extends at least to near the container bottom (21), wherein the container bottom (21) may have a concave shape and / or the first chamber ( 1) has a bottom (15) which has a concave shape and / or wherein the container bottom (21) has a projection (51) which engages in a centering recess of the bottom (15) of the chamber.
    [6]
    A container (10) according to any preceding claim, wherein the first reagent (12) contains water and / or wherein the second reagent (13) contains calcium oxide.
    [7]
    A container (10) according to any one of the preceding claims, wherein the second reactant (13) is disposed in a reactant container (16, 36) above the first reactant (12).
    [8]
    8. A container (10) according to claim 7, wherein a connecting tube (17) from the reagent tank (16) extends to at least the first reactant (12), wherein the connecting tube (17) includes a closing element, so that in the open state, the second reactant ( 13) by means of the connecting tube (17) in the first reaction means (12) can be introduced.
    [9]
    A container (10) according to any one of the preceding claims, wherein the first reaction means (12) is disposed above the second reaction means (13), the reaction agent container (36) being formed as a flexible bag which is interposed between the first reaction means (12). and the bottom (15), wherein in particular the surface of the flexible bag of at least one of the granules of the granules is severable when the granules are pressed onto the surface of the bag.
    [10]
    10. Container (10) according to any one of the preceding claims, wherein the lid (23) includes a pressure element, which may be formed for example as a flexible portion (24) or as a pressing element, and / or the lid (23, 33) has a bore ( 25, 35) for receiving the chamber wall (11), wherein in the bore (25, 35) a circumferential seal (26, 32) may be arranged and / or the lid (23, 33) has a receiving element (27, 37) for the container wall (22).
    类似技术:
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    同族专利:
    公开号 | 公开日
    CH710686B1|2018-09-14|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE102018001950A1|2018-03-10|2019-09-12|Imran Ramic|Kink your drink|
    法律状态:
    2020-09-15| PUE| Assignment|Owner name: CAN MAN AKTIENGESELLSCHAFT, CH Free format text: FORMER OWNER: CAN MAN RUEDI UMBRICHT, CH |
    2021-08-31| PL| Patent ceased|
    优先权:
    申请号 | 申请日 | 专利标题
    CH00119/15A|CH710686B1|2015-01-30|2015-01-30|Container for heating food.|CH00119/15A| CH710686B1|2015-01-30|2015-01-30|Container for heating food.|
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