Capsules and system for the preparation of beverages with activable opening means (Machine-translati

专利摘要:
Capsules (1) for the preparation of beverages with opening means activatable from the interaction of a fluid and an ingredient (2) contained in a closed chamber in its interior. The capsules (1) comprise a pusher (6), or a perforator (19), or a handle (22), or a detachable sheet (30) disposed on the hole on the outside of the housing (5), or a stopper removable (33). The invention also relates to a system comprising a capsule (1) and a beverage preparation machine adapted to cooperate with it. Applicable in those sectors in which they are designed, manufactured, produced or used capsules for the preparation of beverages, such as food, beverages and tobacco, chemistry, rubber and plastics, manufacturing metal products and commerce and hospitality. (Machine-translation by Google Translate, not legally binding)
公开号:ES2538740A1
申请号:ES201401042
申请日:2014-12-26
公开日:2015-06-23
发明作者:Francisco Ortega Fernández；Marcos Cueto Cuiñas；Vicente RODRÍGUEZ MONTEQUÍN；Joaquín Villanueva Balsera；Fernando Rodríguez Pérez；Rafael PIÑERA ORDIERES
申请人:FAST EUROCAFE S A；FAST EUROCAFE SA；
IPC主号:

专利说明:

granular or chopped, so that a leachate is obtained that extracts part or all of its components.
The technology to carry out these methods of obtaining beverages has evolved throughout history, from the procedures in which a mixture was macerated and then the beverage was extracted by compression or drained, to the techniques in which the drip drink is extracted, a technique still used by many of the domestic coffee makers. The arrival of the industrial revolution brought with it the appearance of the first devices with mechanical pressurization components, which allowed to increase the fluid pressure and thus increase the efficiency of the process and even the varieties of drinks obtained.
During the 20th century, the first attempts to create encapsulates with the appropriate ingredient dose begin. The reasons for having single dose capsules are several. In some cases it is justified because they improve the hygiene of the beverage preparation process, since contact with the ingredient and its contamination is avoided. In addition, if the encapsulation has airtight properties, the ingredient can be isolated from the outside, thereby delaying its degradation by keeping it much longer. Another advantage they provide is that obtaining the beverage is faster and easier since the task of preparing the dose from the raw material is eliminated, which sometimes includes grinding or crushing the material that forms the bed.
The principle of operation of this technology is based on carrying out an extraction process with a fluid (usually hot water) at constant pressure and temperature by using a capsule containing a pre-established dose of material. It typically consists of inserting a capsule into a receptacle or cavity of a machine, injecting an amount of pressurized water into the capsule, usually after drilling a wall of the capsule with an injection element such as a needle arranged in the machine, and creating in this way an interaction between the fluid and the ingredient, and then let the drink out of the capsule.
Depending on the consistency of the capsule shell, soft, semi-soft, semi-rigid or rigid capsules can be found. Reusable capsules and disposable single-dose capsules after single use are also known. The semi-soft, semi-rigid or rigid single-dose capsules are the ones that best guarantee the hygiene and preservation of the ingredient since with them a good barrier can be established to contain a conservation atmosphere in a closed chamber.
Single-dose capsules are elements that contain an ingredient that is extracted in the form of a drink when they collaborate with means external to them, such as an extraction device in which they are introduced or coupled. To obtain a quality drink with sanitary and organoleptic guarantees, it is necessary to preserve the ingredient in preservation conditions from the time it is introduced into the capsule until it is extracted. To achieve this, we usually resort to the formation of closed chambers or sub chambers that contain the ingredient, with a waterproofing with respect to air and / or moisture. These chambers may be inside the capsule, they may be formed by the capsule itself, or they may contain several capsules (such as a common container). In some cases, a waterproofing of liquids or moisture is sufficient, although in general the most common is the waterproofing of moisture and gases. With some specific ingredients, it is also necessary that the waterproofing barrier be bidirectional effective, restricting both the entry and exit of gases
or liquids This type of insulation is common in those ingredients that are introduced into the capsule together with a conservation atmosphere, or in those ingredients that give off gases over time and that it is advisable not to let go.
When a user intends to obtain a beverage using a single dose capsule, with an ingredient enclosed in a chamber inside it, it is therefore necessary to open said chamber and facilitate the interaction between the ingredient and the extraction fluid and the exit of the beverage. For the opening of the closed chamber with the ingredient, there are basically two strategies in the state of the art: opening by direct interaction of the extraction machine with the capsule or self-opening of the chamber with opening means integrated in the capsule itself.
Within the first group, capsules can be found that open by interacting with the machine, which first slashes or drills them by introducing a fluid injection element external to the capsule and located in the extraction machine. In this way, a fluid can be introduced into the capsule through the perforations generated in the capsule wall. During the injection process an increase in hydraulic pressure is achieved inside the capsule that causes it to swell, pushing one of the walls or membrane against opening means in the form of blades, holes or projections that tear this membrane allowing The exit of the drink. After opening the capsule, the beverage is then conducted by an evacuation route to a container or cup. Some examples of this type of capsule are described in WO 2011061126 or WO 2010137962 in which a disposable part is included, or those that involve an evolution in hydraulic dynamics such as that described in WO 2013021080 A1.
Another way of causing the capsule to open is by integrating mobile perforators into the machine or its accessories, such as the one described in US 7543527 B2. In these cases the capsule is perforated with a perforator at one of its ends, where an extraction fluid is injected and the capsule is also perforated with another perforator at the opposite end, to open an outlet for the drink, which is led to a container. In this type of capsule the increase of hydraulic pressure inside is disregarded to move the walls of the same in order to open them and perforation elements integrated in the machine that are inserted in capsule are used.
These opening techniques however have several drawbacks. On the one hand, the conduction of the beverage to the container can cause the calcification of the evacuation ducts of the machine, reducing its effectiveness over time. On the other hand, one of the advantages that the single dose capsule provides is impaired. During the extraction, the machine gets dirty with the drink when it is taken to the cup or container, which makes the process unhygienic, especially after several uses. In addition, the use of capsules with different ingredients in succession can lead to a cross-contamination effect, since subsequent extraction can be contaminated with the remains of the product from the previous extraction.
One way to avoid the inconveniences described is the use of capsules with opening means of the closed chamber with the ingredient integrated in the capsule itself, where in addition the fluid that is dispensed leaves the capsule without the need to be conducted or conditioned by the machine, falling directly to a container arranged by the user.
A sample of these solutions are the capsules in which the closed chamber is defined by the capsule housing and an upper wall pierceable by a needle or fluid injection conduit. The evacuation route of the beverage is formed in the lower part of the shell itself during the process of insertion or positioning of the capsule in the extraction machine. In this case, the opening means are also based on the use of perforators or pushers, but now they are inside the capsule. Normally, the perforator or pusher also serves as a concentrator or dispenser, so that a single outlet jet is obtained that goes directly to the cup or container.
In order to cause perforation and lower rupture of the housing, the wall of the base of the housing can be moved towards the inner perforator by applying pressure in said base towards the internal volume, as described for example in patent document EP 1580144 Bl . To open the capsule, it is inserted into a capsule holder that is inserted into the machine or placed directly in a hole in the machine, being slightly raised. When the machine is closed on the capsule, it pushes it down, against the capsule holder or the hole in the machine, causing the housing to open internally. Another way of provoking the perforation is with the displacement of the internal pusher or perforator towards the base of the housing using the movement of insertion of the needle or injection conduit that is placed in the machine. An example of this technique can be seen described in WO 2008132571 Al. By introducing the injection means into the capsule through the tearing of the topsheet, they contact the perforator and push it down resulting in the breakage of the housing at the bottom of the capsule.
Despite their advantages, these forms of opening also have some drawbacks. On the one hand, the opening is made through the capsule shell by means of a perforator, spout or projection arranged in an inner pusher. Usually the capsule housings are made of plastic, such as PP, with a thickness that can be up to 1.5 mm. The perforation of a plastic wall of these characteristics results in the need to apply a great penetration force, which implies that the closing of the machine on the capsule may require an overexertion that is not available to all users (such as children
or elderly) or that the design of the means of closing the machine on the capsule have to be very robust to withstand wear. As an alternative, the opening force could be reduced at the cost of the perforator being a very sharp component, which makes it dangerous for the user as it is exposed after opening.
On the other hand, the type of opening in which the perforator is moved towards the housing when being pushed by means of injection or dispensing, is only suitable for flat capsules, with a reduced height. The perforator is a piece that has to open the capsule due to breakage or tearing of the lower part, where the beverage is produced. However, the perforator is a part that is activated by contact with the injection means that penetrate the capsule at the top and normally have a travel capacity of a few millimeters. In order to activate the pusher or perforator and for it to tear the housing from the bottom, it is necessary that one end of the perforator be close to the top, which is where the injection media enters. To use this opening in capsules with a medium or large height and operating in a typical dispensing machine, it would be necessary to increase the height of the perforator and also its volume so as not to lose its resistant capacity (failure due to buckling or bending) and drilling. In this case, the useful volume inside the capsule and therefore the amount of ingredient that it can contain would be greatly reduced, penalizing the quality or quantity of beverage that is intended to be obtained. Another problem is the additional wear to which the needle or injection duct is subjected, which must tear, pierce or penetrate the top sheet and also push the perforator. This overexertion on the needle or conduit causes a problem of wear on the tip, which can affect the passage of fluid inside and the function of penetration and / or tearing of the needle in those capsules in which the needle must penetrate the top sheet. In the worst case, overexertion can cause elastic or even plastic flexion of the needle to such an extent that it makes the discharge dangerous due to blockage of the injection flow or that the machine is permanently damaged.
A technological alternative of the above capsules are those that continue to use closed chamber opening means integrated in the capsule itself but which are activated by increasing the hydraulic pressure inside the capsule, such as those described in EP1472156 B1, EP1864917 B1, WO 2006021405 A2 or WO 2014029884 Al. Its operating principle is an evolution of the first capsules mentioned in this section, in which the opening is produced by direct interaction with pointed elements located in the extraction machine, outside the capsule. Now, the closed chamber with the ingredient is a subchamber inside the housing, with a top sheet and a bottom sheet. The increase in hydraulic pressure inside the capsule causes it to either swell, pushing the lower wall of the closed chamber against opening means located outside it, or that opening means inside it move towards the bottom wall, so that they tear this membrane. In any case, the opening means are placed inside the capsule housing and are in the form of blades, drills or projections. After opening the capsule, the beverage is conducted internally and exits directly from the capsule into a container or cup.
A typical configuration of this type of technology is the following: a hollow body or housing, usually in the form of a cup, and an injection wall that is impervious to moisture and air and is welded to the housing, and which is made to be punctured by an injection needle of a machine and which acts as the upper wall of the closed chamber. A chamber that contains an ingredient bed (for example coffee) that will undergo interaction with the injection fluid, which is normally hot water injected under pressure. An aluminum membrane disposed in the lower part of the capsule, below the ingredient and enclosed in a closed chamber, and which partially retains the internal hydraulic pressure and is close to perforating elements that drill holes in the aluminum membrane at move towards them when the internal hydraulic pressure reaches a certain value. Sometimes, it also has a perforated sheet located between the injection wall and the ingredient bed to break and distribute the injection jet, which keeps the ingredient bed in compression when it is dehydrated (before use).
With respect to the machine in which the capsule is inserted, it normally has fluid injection means, such as an injection needle, located on an injection plate after the capsule, and capable of piercing one of its walls . The injection means are introduced into the capsule when a capsule holder with the capsule is inserted into the machine and the capsule is closed on the assembly for operation. This type of machine is described, for example, in EP 1967099 B 1.
In this type of capsules, the displacement that facilitates the crimping of the perforating elements with the aluminum foil to tear it and open the closed chamber depends on the increase of the internal hydraulic pressure. The dynamics of this pressure increase depend on controllable factors, such as injection pressure, injection time or injection fluid temperature, which are usually constant values predefined by the machine or by the user. However, this dynamic also depends on uncontrollable factors, such as the dynamics of the physicochemical reactions of extraction or dissolution that produce a more substance.
or less concentrated depending on the characteristics of the ingredient, or the internal turbulent regime during the injection of fluid that depends on the shape of the capsule and the mode of impact of the injection jet, among other variables. The nature of the uncontrollable factors makes the dynamics of the increase in pressure and therefore of the opening of the closed chamber of the capsule different in each extraction process, causing several inconveniences that affect the quality of the final product. This variability sometimes causes partial openings of the closed chamber due to the fact that the crimping of the sheet with the perforating elements fails locally, or that arbitrary openings occur, for example between two adjacent perforating elements. These failures materialize with the appearance of tears and therefore spaces of passage of the solution or leaching at different times and / or with heterogeneous form, 10 which translates into delays or advances of opening of the closed chamber, the sudden expulsion of the drink by means of a high pressure jet, a flow of drink with an inconsistent flow rate, sudden pressure drops as gaps open several times during delivery
or the appearance of grounds in the drink due to the over-dimensioning of the exit routes perforated in the sheet.
Another problem related to this form of opening is the appearance of a leachate ejection phenomenon after the use of the capsule. Occasionally, after the use of the capsule, a drip of drink occurs through the exit hole that extends over time. A spray of fluid in the form of an aerosol can also be generated that suddenly comes out through the injection hole that is drilled in the upper layer of the capsule when the injection means are removed. The expulsion of the leachate after extraction is generated mainly by the process of balancing between the internal pressure of the capsule and the external pressure, normally lower. As with the exit of the drink, the dynamics of this pressure balance also depends on the shape and amount of passageways or tears that communicate the inside of the closed chamber with the outside. Therefore, a random opening of gaps can also result in the occurrence of a drip phenomenon that can be extended for minutes even after cessation of fluid injection into the capsule or in a sudden stream of fluid. This process of expulsion of drink causes problems that have a negative impact on the cleanliness of the process and the user experience. When it occurs, sometimes users have to manipulate the capsule after dispensing to prevent once it is disposed of it, it continues to expel fluids, soiling or giving off odors. For this, it is usually resorted to deposit it in a container for a while until the drip is reduced or eliminated,
or accelerate the process by practicing additional openings in the capsule. When the capsule is used to dispense hot drinks the phenomenon of drip expulsion
or by jet it can even be dangerous and harm the user, especially when the exit is abrupt and unexpected. Normally, hot drinks, such as coffee or tea, are obtained by injecting water at temperatures exceeding 70 ° C and even near boiling temperatures. If attention is not paid, contact of the hot drink with the skin or eyes can cause serious burns.
To avoid leachate expulsion, solutions that can be classified into two types are known. The first one tries to avoid dripping the drink through the exit hole of the capsule while the second one focuses on eliminating the jet of fluid that can be given when the injection needle is removed.
The proposals of the first type are based on the implementation of some type of valve system that restricts the passage of the beverage when the injection is finished and the hydraulic pressure inside the closed chamber is reduced.
Thus, for example, in patent EP 1864917 B1 a type of capsules is described as those mentioned above, which use closed chamber opening means integrated in the capsule itself and which are activated by increasing hydraulic pressure inside. The valve provides valve means that block the flow to the outlet by cooperating a flexible lip with the housing wall. The flexible glass is arranged in a disk located downstream of the chamber with an ingredient that also has perforating elements that open the closed chamber with the ingredient when it swells. The deformation of this lip also originates thanks to the effect of the internal hydraulic pressure and atmospheric pressure, which causes it to move away or close to the housing, allowing or restricting the passage of fluid. The drawbacks of the operation of this valve system are very similar to those indicated for the opening of this type of capsules. The functioning of the valve means is dependent on the dynamics of equilibrium of internal and atmospheric pressures, 10 which makes it unpredictable. In addition, in the event that the opening of the chamber occurs late, even after the injection process is over, it can cause the internal pressure still retained to be released randomly and fluid is blown out, so that the valve does not It can regulate or contain.
In WO 2008116818 Al, an improvement of the previous valve technology is presented by introducing capillary holes in the opening means or valve insert, whose function is to release the pressure inside the closed chamber after the injection or to avoid the return of the upstream flow, so as to prevent its exit through the needle piercing hole and cross contamination. This is achieved with very small holes that are plugged after the injection restricting the passage and regulating the pressure equilibrium dynamics. However, the main problems referred to in the previous patent remain. The effectiveness of the capillary holes is very delicate since in turn their tamponade depends on the balance of internal and external pressures 10 which is little or not controllable, especially when the opening of the closed chamber is carried out by means of the internal hydraulic pressure. On the other hand, the materialization of capillary holes supposes a complex and high precision manufacturing process, 10 which substantially increases the technology.
The proposals of the second type try to eliminate the jet of fluid that occurs when the residual pressure that remains after the injection of fluid is balanced with the outside. The gas trapped in the fluid inside the capsule suddenly expands when the injection needle is removed and the passage that connects the inside of the closed chamber with the outside is opened. This causes the water under pressure to jet out of the capsule through the hole through which the injection needle, already removed, penetrated.
There are several techniques in which the sealing of the upper sheet through which the needle penetrates is proposed, once it is removed. Normally these proposals are based on the resilience of the top sheet itself or on the addition of areas and / or layers of high resilience that allow the hole to self-close when the needle is removed. Some examples are shown in patents EP 1864917 B 1, or WO 2013026650 A1. Other options are based on implementing retention means also based on the elastic recovery of the material to achieve a self-closing of the penetration hole, but placing the barrier inside the closed chamber, such as the barrier described in WO 2013167434 A1 .
However, these types of solutions are based on the capacity of the material that forms the top cover or that is placed as a barrier, to recover its shape, maintaining an appearance similar to the one before drilling. They trust that the resilience or elasticity of the material is sufficient to close the perforated hole, and in addition to keeping it closed despite the efforts it supports and which tend to keep it open until the balance of pressures is achieved. For a sheet or a component to meet these characteristics, it must be materialized with a material with special properties, and therefore normally exotic and difficult to achieve. An alternative is to implement a top wall with a material of reduced resilience, such as plastic, but with a thickness that would cause manufacturing, packaging and transport costs to skyrocket or the product to be unmanageable. Another problem is the additional wear to which the injection needle is subjected, which must tear, pierce or penetrate an element of a material that offers greater resistance compared to a thinner or less stubborn layer. This overexertion on the needle causes a problem of wear on the tip, which can affect, as already mentioned, the passage of fluid inside and the function of penetration and / or tearing in those capsules in which the Needle should penetrate the top sheet.
An alternative to the prior art is to include one-way or unidirectional valve elements upstream of the chamber containing the ingredient, and activatable by the injection needle. Such solutions are described for example in WO 2013167435 (Al). The aforementioned drawbacks for valve systems are reproduced in these alternatives. Constructive complexity increases, and it is also difficult to produce a reliable one-way valve that is activated by the pressure of the injection needle. In addition, using the injection needle as a pusher to activate a valve produces the same disadvantages as indicated above (wear of the tip, overexertion and flexion of the inner duct).
On the other hand, there are also proposals that try to solve both the drip and the appearance of the simultaneous flow of flue fluid by reducing the internal residual pressure of the capsule, through the incorporation of elastically defonnable areas in the housing itself capsule. Before water is injected to produce the beverage, the capsule shell is defronted by the application of a machine-induced compression upon closing on the capsule itself, so that its outer volume is reversibly reduced. By reopening the machine to remove the capsule already used, the elastically defonnable areas on the wall of the housing recover the fonna, reducing the internal residual pressure, making the pressure balance dynamics faster or even not necessary. An example of this technology is described in WO 2014029884, which shows a capsule with an element in bellows in the upper part of the housing. A drawback of this alternative is that the introduction of elastically defonnable zones into the wall of the housing makes the manufacturing of the capsules substantially more complex. Nonnally, the capsule housings are manufactured as a single piece using plastic molding techniques (such as PP) with the intention of providing a wall with insulating properties for the ingredient, and with sufficient mechanical capacity to serve as a container and support efforts during storage and extraction of the drink. The shell of the housing, unnaturally corresponds to a molded plastic wall with smooth or faceted curves, such as a truncated cone or a piece of cup shape. This type of fonnas favors the demoulding and the structural function. However, the introduction of elastically defonnable zones in the wall means that either new steps or manufacturing processes have to be incorporated to add or incorporate those zones, or that the molding or demolding process is hindered to the point where it is They must introduce new tools or tools to ensure continuity of production. On the other hand, it is difficult to guarantee the reversibility of defonation based on elements arranged in the housing wall to the point that the internal residual pressure is sufficiently reduced to prevent dripping. To achieve this, either the housing is constructed based on high resilience materials, which penalize the manufacturing process, the cost of the product and the structural function (important during the storage phase), or additional structures are added, such as skeletons interiors, which help recovery, 10 which also has the drawbacks indicated. In addition, the introduction of elastically deformable areas in the wall of the housing, such as a bellows, means that the compression force to cause deformation has to be applied at the edge of the wall and run through the housing to the deformable zone. Normally this compression force is obtained from the closure of the machine on the capsule, and more specifically when the injection means press the capsule once introduced into the machine. In machines in which the injection means are closed on the capsule by a hinge movement, compression does not occur simultaneously on the entire edge of the wall, but the compression force travels along the edge as the injection means They close on the capsule. This causes compression forces with horizontal component to appear and, therefore, that the deformation of the capsule is not uniform in one direction. It can be caused by both an unwanted displacement and that either the capsule does not recover its shape due to the effects of local plasticization, or that in the worst case the process of dispensing and removing the capsule is dangerous due to breakage, interruption of injection flow or clogging.
The arrangement of compartments or sub chambers inside the capsules from walls, sheets, filters or membrane-type elements, permeable or impermeable, is commonly used for different functions such as filtration, selection, isolation, or breakage of jets or flows. Some examples of capsules with sub chambers are described, for example, EP 1101430 Al, US 5325765 A or GB 899055 A. Another example of a capsule with sub chambers and a perforated wall for breaking and distributing the injection jet can be described. in EP 1784344 B 1. An additional function of this type of sheet is to create an injection space and separate it from the chamber containing the ingredient, so that the wall is positioned with the intention of keeping the bed formed by the compressed ingredient when not hydrated. Normally this sheet is arranged during the manufacturing process of the capsule, before sealing it by means of the upper injection wall. However, in order to keep the product bed in compression, it is necessary to use processes of placing and joining the sheet to the walls of the capsule of high precision, which affects the cost and the technical complexity of the manufacturing process. Otherwise, it is difficult to ensure a compression of the bed in a non-hydrated state. On the other hand, when hydrated, the product usually swells and increases in volume which can cause the perforation of the perforated sheet, thus losing effectiveness. In addition, since the compressed ingredient is already in the non-hydrated state, increasing the volume can also reduce or prevent the extraction of leachate since the confined bed, when swollen, can slow down or close the passage of the current that must pass through it.
Another proposed technology for breaking the inlet jet is that described in patent EP 2404844, in which it is proposed that the upper wall have spray means integrated with openings, so that they accommodate the injection needle or conduit without piercing them. The capsule is characterized in that the upper wall is flexible and multi cap. It also comprises a perforated film that is sufficiently flexible to deform without perforation when in contact with the injection needle. However, the materialization of a multi-layered upper wall, with one of those layers perforated but which at the same time is not perforable by the injection means is very complex and requires the use of special materials with a very high tenacity. On the other hand, the needle must first tear an outer layer, and then enter the pierced layer without tearing it, but allowing both layers to detach or separate properly, in an area close to the penetration of the needle. Otherwise, a detachment of the perforated layer can be prevented preventing adequate dispensing. It is very difficult to guarantee this local detachment unless additional means are implemented, with an increase in the complexity of the device. DESCRIPTION OF THE INVENTION
The present invention relates to capsules for the preparation of beverages from the interaction of a fluid and an ingredient contained in a closed chamber disposed therein, which have means for opening the active closed chamber. The capsules comprise a pusher, or a perforator, or a handle, or a detachable sheet disposed on the hole outside the housing, or a removable cap. The invention also relates to a system comprising a capsule and a beverage preparation machine adapted to cooperate with it.
For the purposes of this invention and its description, closed chamber must therefore be understood as the main closed part of the capsule containing the substance to be extracted. This includes any closed section (isolated from the outside atmosphere) of a capsule and containing the food preparation.
For the purposes of this invention and its description, it should be understood that the interaction between the liquid and the ingredient may be dissolution, extraction, infusion, percolation or any other interaction in order to prepare a beverage from ingredients on which a fluid interacts to extract or dissolve part or all of the ingredient.
For the purposes of this invention and its description, ingredient should be understood as a food or pharmaceutical preparation, from natural elements or obtained by physical-chemical processes. It can also comprise mixtures of several substances, or mixtures of the same substance with a different physical form (powders, granules, strands, a paste, a gel, a porous bed, etc.).
Likewise, for the purposes of this invention and its description, the beverage resulting from the interaction can be referred to interchangeably as a beverage, leachate, solution, nutritional liquid, food liquid or pharmaceutical preparation. The resulting beverage can also be presented in different ways, such as pasty, semi-liquid, or liquid depending on its viscosity. Some examples of drinks obtainable through the interaction of an ingredient and a fluid are tea or other infusions, coffee, chocolate, purees, soups, ice cream, sorbets, yogurt, dairy preparations, baby foods, food supplements or medications.
An object of the present invention is a capsule for the preparation of beverages with active opening means comprising:
An ingredient contained inside a closed chamber.
An upper wall perforated through which an injection fluid enters the closed chamber that interacts with the ingredient to obtain a beverage. The upper wall is preferably made of a perforating material such as plastic, aluminum, cellulose, or starch-based material. On the other hand, the upper wall can be monolayer such as an aluminum foil, or a multilayer membrane comprising a gas barrier such as a combination of plastic / EVOH / plastic or a plastic / aluminum / metallized plastic combination.
A bottom wall capable of opening by means of opening means by which the beverage is dislodged from the closed chamber.
An outer shell with at least one side wall. The capsule housing is preferably shaped like a truncated cone cup or trunk. In this way, at least it has a circumferential side wall with an open side on which the upper wall is arranged, and another closed or semi-closed side. In another preferred embodiment, the capsule has several walls, forming a faceted surface. The embodiment of the invention with one or several walls produces different effects on the flow of the leaching fluid, such as the speed of passage or the type of flow (more or less laminar or turbulent), and in any case in the leachate quality obtained.
A means of opening the closed chamber.
The opening means of the closed chamber in turn comprise a pusher that travels along at least one dimension of said capsule when a compression is applied, which pushes the lower wall against a perforating means of the lower wall that open the camera closed to dislodge the drink.
In a preferred embodiment, the pusher is disposed on the ingredient, moves towards the ingredient and transmits efforts through the ingredient by pushing the bottom wall arranged under the ingredient against drilling means. In this embodiment of the capsule, the pusher does not come into direct contact with the bottom wall to push it against the drilling means. In this case, the thrust is transmitted through the ingredient, over which a pressure bulb is generated that displaces the lower wall.
In another preferred embodiment, or in a more specific embodiment of the above, the pusher comprises a rod that travels when compression is applied to the upper wall and a rigid or semi-rigid membrane or sheet that distributes the compression forces. In a more preferred embodiment, the rod comprises at least one resilient portion that is deformable when compression is applied. This configuration allows the effective thrust on the bottom wall to be adapted when compression is applied to the pusher under different conditions.
or when the ingredient has different ranges of consistency.
For the purposes of this invention and its description, the term "resilient" means that a component or some of its parts has the shape or is made of a material that makes it mechanically deformable, elastic or plastic, when a load is applied.
In another more preferred embodiment, the membrane or sheet comprises through openings, which can be grooves, ducts, channels or holes, distributed on its surface such that the injection fluid is distributed in the ingredient as it passes through it. In another more preferred embodiment, the membrane or sheet is formed of edible material. In an even more preferred embodiment, the edible material is soluble.
In another even more preferred embodiment, when the membrane or sheet comprises through openings or is soluble, the edges of the membrane or sheet extend to the vicinity or even touch the wall or side walls of the housing. In this configuration a division is then formed, separating the interior into a sub injection chamber and a subchamber with the ingredient. This separation sometimes improves the behavior of the dispensation and the cleaning of the process since a space is provided for the injection means, such as an injection needle, to penetrate the capsule and inject the fluid without disturbing the bed of ingredient. In addition, the membrane or sheet can be used to break and distribute the injection jet, conditioning the fluid for a better interaction with the ingredient. In an even more preferred embodiment, the membrane edges
or the sheet is attached to the wall or side walls of the housing, for example by means of a thermically formed joint, a weld or an adhesive. In another even more preferred embodiment, the wall or side walls of the housing have a perimeter lip, continuous or discontinuous, which limits the movement of the membrane or the sheet. More preferably, when the edges of the membrane are attached to the wall or a lip that limits movement is available, the membrane is flexible and concave with respect to the lower wall. A concave membrane can be a thin surface with a concave central zone and a flat edge area, or it can also be a curved surface in its entirety. The concave membrane can have any concave shape such as a warped membrane, a hemispherical membrane or a portion of a hemisphere, with a concave part oriented towards the bottom wall. Preferably, the concave membrane has a shape, dimensions
or it is made of a material such that it is elastically deformable so that the volume of the sub-chamber containing the ingredient can be reversibly varied when compression is applied or reduced on the pusher. In this way, when a compression is applied on the pusher with the concave membrane, the volume of the subchamber with the ingredient is reduced, and as the pusher is compressed further, the bottom wall is pushed against drilling means. When the dispensing of the drink is finished, by reducing the compression on the pusher, the membrane recovers its initial form, increasing the volume
of the subchamber with the ingredient, so that the residual pressure inside the capsule is reduced. Within this configuration, preferably, the concave membrane has closing edges, such as lips or eyelashes, bordering the openings of the membrane and opening or closing its passage when the membrane is deformed. Through this feature, the membrane can open or close the passage of the flows that pass through it when the capsule is in operation or when the capsule has already been used. When the membrane recovers its position by reducing the compression on the pusher, the through openings are closed by the closing edges, thus achieving that the membrane behaves like a suction cup and as a barrier. In this way, the effect of expelling a liquid jet through the injection hole and even the lower drip can be avoided since it is possible to reduce the internal pressure quickly to make it equal to or less than the external pressure.
In another preferred embodiment, the drilling means comprise high perforating elements that pierce the bottom wall. It should be understood that the term "pierce" incorporates any equivalent that assumes that a path of passage of the beverage is functionally opened in the lower wall to facilitate its exit from the closed chamber beverage. Thus, for example, any tear, puncture, tearing, perforation, pinching, rupture and / or perforation of the lower wall are equivalent due to a cooperation between the piercing elements and the lower wall. The piercing means can be formed or be part of an additional component or they can also be part of the capsule housing, such as, for example, high perforating elements located on the inner face of the lower part of the capsule. In a more preferred embodiment, the drilling means further comprise raised support elements that support the bottom wall. The support of the lower wall allows, once opened to the passage of the drink, it can run on the opposite side more easily. In an even more preferred embodiment, the elevated piercing elements and the elevated support elements are distributed on a plate comprising grooves, conduits, channels, holes or through holes that communicate both sides of the plate through which the flow can flow. drink. By means of this configuration, preferential circulation channels can be arranged on the surface of the plate through which the beverage runs arranged between the perforating elevated elements and the elevated support elements, which facilitate evacuation into the grooves that communicate both sides of the license plate. In an even more preferred embodiment, the high perforating elements located on the periphery of the plate have a different height from those located in the center. This variation in height allows the opening of the closed chamber to occur in two areas sequentially. It also allows in some cases the opening of the entire lower wall to be simultaneous, especially when the pressure bulb of the pusher on the ingredient is very pronounced.
Another object of the present invention is a capsule for the preparation of beverages with activatable opening means comprising:
An ingredient contained inside a closed chamber.
A perforable upper wall through which an injection fluid penetrates into the closed chamber that interacts with the ingredient to obtain a beverage, similar to that of the capsule described above.
A bottom wall capable of opening by means of opening means by which the beverage is dislodged from the closed chamber.
An outer shell with at least one side wall, similar to that of the capsule described above.
A means of opening the closed chamber.
The opening means in turn comprise a perforator that travels along at least one dimension of said capsule when a compression is applied on said perforator, which perforates the bottom wall by opening the closed chamber to dislodge the beverage.
In a specific embodiment, one end of the perforator protrudes from the capsule shell. This allows compression on the perforator to be applied more easily, without using complex elements or tools or with precision. In a more specific embodiment, the end of the perforator that perforates the bottom wall comprises at least one insertion flange, and the opposite end is a concentrator that concentrates the beverage in an outlet jet. The flange or tabs facilitate the insertion of the perforator during the manufacture of the capsule and also, in a preferred configuration, prevent excessive penetration that can destroy the functionality of the capsule. The tabs can also be perforating elements. In an even more specific embodiment, the perforator further comprises an elevated piercing element, at the end that perforates the bottom wall. In another embodiment, the perforator comprises a bale on which several high perforating elements are arranged that pierce the lower wall.
In another more specific embodiment of the capsule with an end of the perforator protruding from the capsule shell, the perforator further comprises a knocker, disposed at the end of the perforator that protrudes from the capsule shell. The compression on the perforator can be applied on the very end that protrudes from the capsule. However, when compression is applied instantaneously, a punch that absorbs and redistributes the sudden impact can be included. In this way the unforeseen defonnación of some part of the perforator or of the capsule that can affect the correct dispensing of the drink can be avoided.
In another specific embodiment, the perforator is disposed through a plate located downstream of the lower wall and travels relative to said plate.
In a preferred embodiment of any of the above capsules object of the invention, the compression on the pusher or on the perforator is applied by the user by means of its phalanges or its gradually shaped ends. In this mode of operation, the opening of the closed chamber is produced by the direct action of the user on the capsule, usually before introducing it into a machine for preparing the beverage.
In a preferred embodiment of the capsule comprising a pusher, compression is applied when said capsule is inserted into a cavity of a machine, and / or when said cavity is closed on the capsule. In a more preferred embodiment, the cavity is closed by means of injection means movable to and from the capsule comprising an injection needle located on an injection plate, which compresses the capsule and displaces the pusher. In this case, the opening of the closed chamber is produced by the cooperation between the machine and the capsule.
An example of a typical machine in which the capsules of the invention could be inserted, comprises a capsule holder for inserting the capsule and which is made to be inserted and removed from a cavity or receptacle of the machine. When the capsule holder loaded with a capsule is functionally inserted into the machine, injection means of the machine can access the inside of the capsule and inject an injection fluid to prepare the beverage. Normally the injection means are a needle arranged on a pivoting injection plate. Said needle is adapted to be inserted into the capsule when the capsule holder with the capsule is inserted and positioned in the machine in order to operate it. Once inserted, the injection plate is pivoted and closed on the capsule holder, allowing the needle to pierce the capsule and insert inside. In this type of machines, the outer surface of the upper wall of the capsule is in contact, at least partially, with the injection plate containing the needle of the machine during the operating or dispensing stage.
Another aspect of the invention is a beverage preparation system comprising a capsule as described and a beverage preparation machine adapted to functionally cooperate with said capsules. Said machine comprises a cavity for receiving the capsule so that the beverage can be prepared by injecting a fluid in the capsule through injection means of said machine. The injection means are movable to and from the capsule and comprise an injection needle located in an injection plate. When moving, the injection plate cooperates with a pusher to push the lower wall against perforation means of the lower wall that open the closed chamber to dislodge the beverage. Alternatively, when moving the injection plate indirectly cooperates with a perforator, displacing the capsule assembly when it is inserted in the machine, opening the closed chamber to dislodge the beverage.
In a preferred embodiment, the injection means inject an injection fluid into the closed chamber of the capsule that interacts with the ingredient to obtain a beverage at a pressure between 0.5 and 30 bar, preferably between 1 and 20 bar and more preferably between 2 and 15 bar.
Another object of the present invention is a capsule for the preparation of beverages with activatable opening means comprising:
An ingredient contained inside a closed chamber.
A perforable upper wall through which an injection fluid penetrates into the closed chamber that interacts with the ingredient to obtain a beverage, similar to that of the capsules described above.
A bottom wall capable of opening by means of opening means by which the beverage is dislodged from the closed chamber.
An outer shell with at least one side wall, similar to that of the capsules described above.
A means of opening the closed chamber.
The opening means in turn comprise a handle with one of its ends integral with the lower wall, which moves along at least one dimension of said capsule when a tension is applied on said handle and that tears the lower wall by opening the camera closed to dislodge the drink.
In a specific embodiment, the bottom wall comprises preferred dispensing areas that are torn when a tension is applied to the handle. In a more specific embodiment, the preferred dispensing zones are areas of reduced thickness arranged in the lower wall. The term reduced thickness refers to a lower thickness than the maximum thickness of the lower wall. An example of an area with reduced thickness may be a discontinuous trench arranged annularly. In this configuration, the closed chamber is opened by means of the tension induced on the handle, which is transmitted and distributed on the surface of the lower wall and which causes the wall to open preferably in areas of reduced thickness by allowing the beverage to pass. Additionally, the opening form can be accompanied by the effect of perforating elements that open more gaps in the lower wall.
In another specific embodiment, one end of the handle protrudes from the capsule shell. This allows the shooter to be accessed from the outside in an easier way. In a more specific embodiment, the handle is disposed through a plate located downstream of the bottom wall and travels relative to said plate. In an even more specific embodiment, the handle comprises one end integral with the bottom wall by means of a continuous or discontinuous disk, another end with a handle such as for example a ring, a cross bar, a loop or a hook, and a thread which crosses the plate and joins both ends. For the purposes of this invention and its description, the term "thread" is equivalent to a thread or rope of a single fiber or of several interwoven, rigid, semi-rigid or flexible fibers, and of synthetic material, plastic, metal or organic fibers. In another even more specific embodiment, the handle comprises a concentrator that crosses the plate and moves relatively relative to said plate, with an end integral with the bottom wall by means of a continuous or discontinuous disk. Through the concentrator there is a thread with one end in the form of a head and the other end with a handle. The head-shaped end facilitates the manufacture and assembly of the capsule and also serves to drag the handle assembly when a tension is applied by the handle. In an even more specific embodiment of any of the handles with a wire, the wire comprises a fuse. The term "fuse" refers to an element that allows the wire to break at a predetermined place when a certain tension value is exceeded. This tension value is higher than that necessary to tear the lower wall, so that, sequentially, the lower wall is torn first and then the wire breaks in the fuse. An example of a fuse is a weakening of the wire with a reduction in its section.
In a preferred embodiment of this specification, the fuse is located inside the concentrator.
Another object of the present invention is a capsule for the preparation of beverages with activatable opening means comprising:
5 An ingredient contained inside a closed chamber.
A perforable upper wall through which an injection fluid penetrates into
the closed chamber that interacts with the ingredient to obtain a
drink, similar to the capsules described above.
An outer shell with at least one side wall and an exit hole
10 which communicates the exterior with the interior of the housing, similar to that of the capsules described above.
A removable sheet disposed over the hole outside the
housing that when detached opens the closed chamber allowing the
Drink out of the capsule.
15 The removable sheet in turn comprises preferential rupture zones that break when a shear stress is applied to the removable sheet.
In a preferred embodiment, the preferred rupture zones are areas of reduced thickness arranged in the removable sheet.
Another object of the present invention is a capsule for the preparation of beverages 20 with activatable opening means comprising:
An ingredient contained inside a closed chamber.
A perforable upper wall through which an injection fluid penetrates into the closed chamber that interacts with the ingredient to obtain a beverage, similar to that of the capsules described above.
An outer shell with at least one side wall and an outlet opening that communicates the outside with the inside of the shell, similar to that of the capsules described above.
A removable cap disposed in the hole that communicates the outside with the inside of the housing that when a tension is applied and removed opens the closed chamber allowing the beverage to escape from the capsule.
In a specific embodiment, the removable cap is attached to the housing, for example by means of a thermoformed joint, a weld or an adhesive.
In another specific embodiment, the removable cap comprises an outer disk and a continuous annular wall that is inserted into the outlet port of the housing. By this embodiment, the outer disk can assume the stopper mission, allowing the plug to be inserted in a suitable position, guaranteeing the tightness of the closed chamber although the plug does not join the housing. On the other hand, the outer disk can also serve as a grip element, manipulable by a user. In a more specific embodiment, the removable cap further comprises a handle and a thread that joins the handle and the outer disk. In any case, preferably the continuous annular wall comprises grooves that ensure tightness.
In a preferred embodiment of the capsules comprising a removable sheet or a removable cap, they further comprise a plate located downstream of the ingredient.
In a more preferred embodiment of the capsules with a removable sheet, or with a removable cap, or with a perforator, or with a handle, comprising a plate, the plate further comprises grooves, conduits, channels, holes or through holes that They communicate both sides of the plate through which the drink can flow. In an even more preferred embodiment, the plate further comprises elevated lifting elements and / or high perforating elements. In some of the capsules, where the opening does not occur through cooperation between the bottom wall and perforation elements, these can be expendable
or acquire a secondary and reinforcing role. Thus, for example, in the capsule with a handle that crosses a plate and comprises a thread, any of the raised elements can be arranged around the point where the thread crosses the plate, for example forming a continuous or discontinuous ring, to serve as a deflector of tension or fixed pulley, converting tension in the thread in a tensile stress on the surface of the bottom wall that tears it. On the other hand, if the distribution of the raised elements is adequate, channels can be formed between them on the surface of the plate through which the beverage can flow into the grooves that communicate both faces.
In an even more preferred embodiment of any of the perforated raised elements or of the elevated support elements of the capsules of the invention, the raised elements are pyramids, truncated cones, domes, projections, punches, blades, walls or a combination of the above
In an even more preferred embodiment of any of the capsules of the invention with a perforating plate and raised elements and / or the elevated support elements, the distribution of the perforated elevated elements, and / or the elevated support elements and / or the Slots follow a regular pattern that repeats. In an even more preferred embodiment, the raised support elements are a cylinder or a cone trunk with a straight generatrix perpendicular to the plate and with a guideline that is a circle or an ellipse. In another even more preferred embodiment, the grooves are distributed over an area of the ring-shaped plate surrounded by a continuous outer edge. These configurations allow the flow of the beverage on the plate and the evacuation of the beverage to the peripheral grooves to be more efficient. The channels that form between the elevated elements follow a regular pattern and facilitate a sinuous route of a drink without sharp corners that cause unwanted turbulence and even cavitation phenomena.
In another even more preferred embodiment of any of the capsules of the invention with a plate, the opposite side of the plate comprises continuous, discontinuous or aperture annular walls, through which the beverage flows into an outlet of the capsule. In another even more preferred embodiment of any of the capsules of the invention with a plate, the opposite side of the plate further comprises a hub in the center, which concentrates the beverage in an outlet jet.
In a preferred embodiment of any of the capsules object of this invention comprising a puller, or a removable sheet or a removable cap, the tension is applied by the user by means of his phalanges, limbs, teeth or jaws, gradually or instantaneously. Like the capsules that work with compression, in this mode of operation the opening of the closed chamber is produced by the direct action of the user on the capsule, usually before introducing it into a machine to prepare the beverage. Thus, for example, one way to open the closed chamber of the capsule is to use the fingers to pull a ring-shaped handle, a removable sheet or a cap.
In a preferred embodiment of any of the capsules object of this invention with a bottom wall or with a removable sheet, the bottom wall or the removable sheet is made of aluminum, PP, PE, PA, PS, PVDC, EVOH, PET, cellulose, starch based material or a combination of the above. In a more preferred embodiment, the aluminum foil is between 15 and 50 microns thick and even more preferably between 25 and 35 microns. On the other hand, the perforable upper wall, the lower wall or the detachable sheet can be made of non-woven material or be a fiber fabric, or a combination of both in the form of a monolayer or multilayer.
In a preferred embodiment of any of the capsules object of this invention, the capsule further comprises a dispersion wall of the perforated jet disposed on the ingredient. Like the embodiments in which the pusher comprises a membrane or sheet that extends to the walls of the housing, an interior separation is formed with this dispersion wall, with an injection subchamber and a subchamber with the ingredient. In addition, this wall serves to break and distribute the injection jet entering the capsule through the injection means.
In another preferred embodiment of any of the capsules object of this invention, the capsule further comprises filter means downstream of the ingredient.
In a more preferred embodiment of the capsules comprising a dispersion wall of the jet or filter media, the filter means are a layer with holes, a lattice, a layer of tissue, a layer of nonwoven material, a porous layer or a combination of the above. Preferably, the filter media is a microporous sheet of polymer or polyamide, for example of PES, or of cellulose acetate or nitrate. Another way of materializing the filter media is, for example, by means of a three-dimensional structure made of ceramic, sintered metal, plastic or fibers.
The invention provides several capsules for the preparation of beverages comprising mechanically activatable closed chamber opening means, either by the user or by the cooperation between the capsule and a beverage preparation machine.
One of the advantages of the invention is that the opening of the closed chamber of the capsules is done in such a way that the beverage that is dispensed can leave the capsule without being driven or conditioned by the machine, falling directly into a container arranged by the user. This avoids cross contamination problems making the dispensing process cleaner and more effective.
Another advantage of the invention is that the opening of the closed chamber is done without the need to pierce the capsule shell. In embodiments of the invention in which a component is perforated or torn, it is the bottom wall of the closed chamber. The main function of this wall is to serve as a conservation barrier, which can be achieved through a thin sheet. This means that it is not necessary to apply a great penetration or tear force, which affects the ease of use of the capsule and the design of the components for perforation or tearing.
Another advantage of the invention is that the pusher or the perforator can be activated by the user or by the machine. In the case of activation by means of cooperation with the machine, embodiments are described in which cooperation is by means of injection and more specifically by compression induced by an injection plate through the upper wall. This means that in machines with injection means comprising an injection needle, said needle is not subjected to overexertion with the following wear and danger of disbursement. In this way the needle only deals with tearing the upper wall and serving as a conduit for the injection fluid.
In one of the embodiments of the invention capsules are presented with a pusher, a perforator or a handle, the form of activation of which is such that it does not limit the dimensions of the capsule and does not penalize the volume of ingredient payload. More specifically, in one of the embodiments of the invention a capsule with a pusher that transmits stresses through the ingredient to open the closed chamber is described. In this embodiment, the ingredient becomes another functional component, which cooperates for the opening of the closed chamber without penalizing the capsule loading volume or its total resignations due to the incorporation of additional elements or limiting elements. Depending on the compressibility of the ingredient, the induced pressure bulb will be more efficient. The compressibility also determines the design of the pusher, and the dimensions of the capsule. In the case of ingredients such as ground or soluble coffee, the compressibility is minimal, thus becoming an excellent stress transmitter.
Another advantage of the invention is that it provides capsules that dispense with the hydraulic pressure for opening the closed chamber. This makes the opening of the closed chamber subject to controllable factors, homogenizing the process of dispense even if some conditions vary from case to case (such as the quality of the injection fluid, its temperature or the characteristics of the ingredient). The delivery is now independent of the dynamics of the physical-chemical extraction reactions, of the internal turbulent regime during the injection of fluid that depends on the shape of the capsule and the mode of impact of the injection jet. The openings of the closed chamber are more regular and invariant and unexpected local failures are prevented. Thus, for example, in one of the described embodiments, the lower wall only opens in the desired regions when it is perforated by the high perforating elements, avoiding problems of disbursement by flows with arbitrary flow or by sudden drops in pressure when unforeseen gaps are opening in several different moments. In this way, an adequate extraction of the ingredient is achieved and the quality of the final product is homogeneous, and the reliability of the process is improved. Another effect of the capsules provided in the invention and related to the homogeneity of the opening of the closed chamber, is thus ensuring that the state of the capsule once used always maintains predetermined characteristics, which allows reducing or even eliminating the leachate expulsion after use.
Another advantage of the invention is that it provides capsules that reduce or eliminate the phenomenon of expulsion of the beverage after dispensing regardless of valve systems or means, elastically deformable areas in the housing or self-sealing components based on the resilience of the material. .
In one of the embodiments, a capsule with a pusher is described which comprises a concave flexible membrane with closing edges that border the through openings and that open or close its passage when the membrane is deformed. The movement of the membrane and the ability of the edges to open or close the passage make the assembly behave similarly to a suction cup, which quickly and very effectively reduces the internal pressure of the capsule when it regains its position. This decrease in pressure makes it possible to reduce or eliminate the lower drip. In addition, in this configuration the jet of fluid that can occur when the injection needle is removed is eliminated, since the membrane, when recovering the position, serves as a preventive barrier. On the other hand, the movement of the pusher is done inside the capsule so that the housing is not subjected to deformation stress. In the event that compression is performed through the injection means of a machine, the configuration of the pusher means that the point of application of the compression is not at the edge of the housing, but at any point on the surface of the the upper wall, 10 which makes the operation of the system more reliable. In addition, the fact that the pusher with the membrane is inside the capsule allows it to materialize with variable thicknesses and multiple shapes without compromising the exterior appearance of the product or its usefulness.
In other embodiments, capsules with a removable sheet or with a removable cap disposed on the hole outside the housing are described. These components also serve as a barrier to prevent lower dripping after dispensing. When the extraction of the beverage is finished, a user can replace these elements before discarding the capsule, closing again the outlet through which the drip occurs. In this mode of operation, it is about plugging the outlet path of the remaining beverage, regardless of whether the internal residual pressure is equal to or different from the atmospheric one.
Another advantage provided by some embodiments of the invention is the use of elements for dividing the interior of the capsules into sub chambers or for breaking the injection jet, such as a dispersion wall or a pusher with a sheet or membrane, arranged About the ingredient The fact that they can be arranged on the ingredient bed without compressing it in a non-hydrated state facilitates manufacturing since it is not required to be fixed to the housing with joining means, such as welding. In addition, in certain embodiments the extraction of the beverage is favored since, since there is no pressure on the non-hydrated bed, it is allowed that during hydration, the increased volume due to the swelling of the substance does not slow down or close the passage of the current of fluid flowing through it.
The invention is applicable in those sectors in which capsules are designed, manufactured, produced or used for the preparation of beverages, such as food, beverages and tobacco, chemistry, rubber and plastics, of manufacture of metallic products, and of commerce and hospitality.
DESCRIPTION OF THE FIGURES
Fig. 1 shows a profile view of a capsule (1) in which the upper wall (3) and the housing (5) are distinguished.
Fig. 2 shows a pusher (6) comprising a rod (8) that moves when a compression is applied on the upper wall (3) and a sheet (10) with the flat bottom part that distributes the compression forces. The sheet (10) also comprises through openings (11) distributed on its surface such that the injection fluid is distributed in the ingredient (2). Fig. 2A is a profile view of the pusher (6). Dashed lines show hidden parts. Fig. 2B is a perspective view of the pusher (6).
Fig. 3 shows a view of the sectioned profile of a capsule (1) like that of Fig. 1 with the pusher (6) of Fig. 2. The pusher (6) is arranged on the ingredient (2). it moves towards the ingredient (2) and transmits efforts through the ingredient (2) by pushing the lower wall (4) arranged under the ingredient (2) against drilling means (7) that open the closed chamber. The pusher (6) has the edges attached to the housing wall (5).
Fig. 4 shows a perspective view of the sectioned profile of a capsule (1) with a pusher (6) as shown in Fig. 3. In this figure the ingredient (2) is not shown to facilitate the vision of the lower part of the capsule (1).
Fig. 5 shows a pusher (6) comprising a rod (8) that moves when a compression is applied on the upper wall (3) and a flexible and concave membrane (9) that distributes the compression forces. The sheet (10) also comprises through openings (11) distributed on its surface such that the injection fluid is distributed in the ingredient. Fig. 5A is a profile view of the pusher (6). Dashed lines show hidden parts. Fig. 5B is a perspective view of the pusher (6).
Fig. 6 shows a sectional view of a capsule (1) like that of Fig. 1 with the pusher (6) of Fig. 5. The pusher (6) is arranged on the ingredient (2), it is it moves towards the ingredient (2) and transmits efforts through the ingredient (2) by pushing the lower wall (4) arranged under the ingredient (2) against drilling means (7) that open the closed chamber. The pusher (6) has the edges attached to the housing wall (5).
Fig. 7 shows a perspective view of the sectioned profile of a capsule (1) with a pusher (6) as shown in Fig. 6. In this figure the ingredient (2) is not shown to facilitate the vision of the lower part of the capsule (l).
Fig. 8 shows a pusher (6) similar to that of Fig. 5 but which differs at the outer edge of the membrane (9). In this case the edges of the pusher (6) extend to the vicinity or even touch the wall of the housing (5) but do not join it. Fig. 8A is a profile view of the pusher (6). Dashed lines show hidden parts. Fig. 8B is a perspective view of the pusher (6).
Fig. 9 shows a sectional view of a capsule (1) like that of Fig. 1 with the pusher (6) of Fig. 8. The pusher (6) is arranged on the ingredient (2), it is it moves towards the ingredient (2) and transmits efforts through the ingredient (2) by pushing the lower wall (4) arranged under the ingredient (2) against drilling means (7) that open the closed chamber. The edges of the pusher (6) are not attached to the wall of the housing (5). The wall of the housing (5) has a perimeter lip (12) that limits the movement of the membrane (9) in the vertical direction.
Fig. 10 shows a detail of the area indicated in Fig. 9, in which the perimeter lip (12) arranged in the housing (5), which limits the movement of the membrane (9) in the vertical direction can be better appreciated .
Fig. 11 shows a pusher (6) similar to that of Fig. 5 but which differs in that it comprises through openings (11) distributed in the surface of the membrane (9) in the form of grooves and also has edges closing (13)
located on the concave face bordering the openings (11) through and shaped like lips. Fig. 11A shows a view of the sectioned profile of the pusher (6). Fig. 11B is a perspective view of the pusher (6) where the openings (11) are appreciated. Fig. He is a perspective view of the other face of the pusher (6) where the closing edges (13) are appreciated.
Fig. 12 shows a detail of the area indicated in Fig. LlA in which the openings (11) and the closing edges (13) can be seen. In this figure you can see a sequence of how the closing edges (13) open or close their passage when the membrane (9) is deformed. Fig. 12A shows the closing edges (13) closing the passage of the openings (11). Fig. 12B shows the closing edges (13) opening the passage of the openings (11) when the membrane (9) of the pusher (6) is deformed. The lines represent the fluid jet passing through the openings (11). When the compression is relaxed and the membrane (9) regains its shape, the pusher (6) returns to the state shown in Fig. 12A, the passage being closed again.
Fig. 13 shows a sectional profile view of a capsule (1) like that of Fig. 1 with the pusher (6) of Fig. 11. The pusher (6) is arranged on the ingredient (2), is it moves towards the ingredient (2) and transmits efforts through the ingredient (2) by pushing the lower wall (4) arranged under the ingredient (2) against drilling means (7) that open the closed chamber. The pusher (6) has the edges attached to the housing wall (5).
Fig. 14 shows a perspective view of the sectioned profile of a capsule
(1) with a pusher (6) as shown in Fig. 13. In this figure the ingredient (2) is not shown to facilitate the vision of the lower part of the capsule (1).
Fig. 15 shows a plate (36) comprising through grooves (16) that communicate both sides of the plate (36) through which the beverage can flow. The grooves (16) are distributed over an area of the ring-shaped plate (36) and are surrounded by a continuous outer edge. The plate (36) also comprises elevated lifting elements (15) and high perforating elements (14) arranged on one of its faces. The distribution on that face of the plate (36) of the perforating elevated elements (14), the elevated support elements (15) and the grooves (16) follow a regular pattern that is repeated.
In the figure, it can be seen that the perforating elevated elements (14) have a pointed shape while the elevated support elements (15) have a shape that approximates a cylinder or a cone trunk with straight generatrix perpendicular to the plate (36) and with a guideline that is a circle or an ellipse.
On the opposite side of the plate (36) one can see continuous annular walls (17) with openings through which the beverage runs towards an outlet of the capsule (1). It also comprises a concentrator (18) in the center, which concentrates the beverage in an outlet jet.
This figure also represents the materialization of one of the preferred embodiments of drilling means (7).
Fig. ISA shows a side view. Fig. 15B shows a view of the sectioned profile in which the hidden elements in Fig. 15A can be better appreciated by the outer edge and the annular walls (17). Fig. 15e shows a perspective view of one of the faces where a raised support element (15), a raised piercing element (14) and a groove (16) are indicated. Fig. 15D shows an overhead view where a regular pattern of repeated element distribution can be seen. Fig. 15E shows a detail of the area indicated in Fig. 15D in which the shapes and distribution of the raised support elements (15) and of the perforated raised elements (14) can be seen.
Fig. 16 shows a plate (36) like that of figure 15 but without high perforating elements (14). Fig. 16A shows a view of the sectioned profile in which the elements can be better appreciated. Fig. 16B shows a perspective view of one of the faces where a raised support element (15) and a groove (16) are indicated.
Fig. 17 shows a perspective view of that of the opposite plate face (36) of Fig. 15 or Fig. 16. In the figure, continuous annular walls (17) with openings through which the drink runs to an exit of the capsule (l). It also comprises a concentrator (18) in the center, which concentrates the beverage in an outlet jet.
Fig. 18 shows a plate (36) similar to that of Fig. 15 but traversible, through a hole in the central part and without a hub (18) fixed in the center.
Fig. 19 shows a perforator (19) with one end comprising three insert tabs (20) and with the opposite end being a concentrator (18) that concentrates the beverage in an outlet jet. Fig. 19A shows a perspective view and Fig. 19B shows a profile view.
Fig. 20 shows the perforator (19) of Fig. 19 arranged through a plate (36) like that of Fig. 18. The insertion tabs (20) allow the placement of the perforator (19) on the plate (36) ), serve as elements to tear the bottom wall (4) And also restrict the movement of the perforator (19) preventing it from leaving the plate (36). The perforator (19) of the figure also comprises a shelf or ring that limits the movement inwards preventing it from completely passing through the plate (36), when a compression is applied. Fig. 20A shows a side view of the assembly. Fig. 20B shows a view of the sectioned profile of the assembly in which the elements can be better appreciated. Fig. 20e shows a perspective view of the sectioned profile of the assembly. Fig. 20D shows another perspective view of the sectioned profile of the assembly.
Fig. 21 shows a view of the sectioned profile of a capsule (1) like that of Fig. 1 with the perforator assembly (19) and plate (36) of Fig. 20. The perforator (19) is placed waters below the lower wall (4) and it moves relatively relative to the plate (36) towards the lower wall (4), being able to be perforated. One end of the piercer
(19) a distance d, bounded in the figure, with respect to the envelope of the capsule (1). The capsule (1) also comprises a dispersion wall (29) of the perforated jet, arranged on the ingredient (2).
Fig. 22 shows a perspective view of the sectioned profile of a capsule
(one) with a perforator (19) as shown in Fig. 21. In this figure the ingredient (2) is not shown to facilitate the vision of the lower part of the capsule (1).
(14) which perforates the bottom wall (4). The opposite end is also a concentrator
(18) which concentrates the drink in an outlet jet. Fig. 23A shows a perspective view and Fig. 23B shows a profile view.
Fig. 24 shows the perforator (19) of Fig. 23 arranged through a plate (36) like that of Fig. 18. The insert tabs (20) allow the placement of the perforator (19) on the plate (36) ) and also restrict the movement of the perforator
(19) preventing it from leaving the plate (36). The perforator (19) of the figure also comprises a shelf or ring that limits the movement inwards preventing it from completely passing through the plate (36), when a compression is applied. The high perforating element (14) serves as an element for tearing the lower wall (4). Fig. 24A shows a side view of the assembly. Fig. 24B shows a view of the sectioned profile of the assembly in which the elements can be better appreciated. Fig. 24C shows a perspective view of the sectioned profile of the assembly. Fig. 24D shows another perspective view of the sectioned profile of the assembly.
Fig. 25 shows a sectional view of a capsule (1) like that of Fig. 1 with the perforator assembly (19) and plate (36) of Fig. 24. The perforator (19) is placed waters below the lower wall (4) And it travels relative to the plate (36) towards the lower wall (4), being able to be perforated. One end of the piercer
(19) a distance d, bounded in the figure, with respect to the envelope of the capsule (1). The capsule (1) in this case has no wall arranged on the ingredient (2) so that the injection jet interacts with more energy with the ingredient (2).
Fig. 26 shows a perspective view of the sectioned profile of a capsule
(one) with a perforator (19) as shown in Fig. 25. In this figure the ingredient (2) is not shown to facilitate the vision of the lower part of the capsule (1).
Fig. 23 shows a perforator (19) with one end comprising three insert tabs (20) and also comprising a raised piercing element
Fig. 27 shows a detail in which the perforator (19) arranged in a capsule (1) as shown in Fig. 25 can be seen, before and after the opening of the closed chamber. Fig. 27A shows the perforator (19) with an elevated perforating element (14) under the bottom wall (4), and with the other end, with a hub of hub (18) protruding from the housing (5) of the capsule ( one). Fig. 27B shows the bottom wall (4) torn by the high perforating element (14) disposed in the perforator (19) after applying a compression that moves the perforator (19) towards the bottom wall (4), thus opening the chamber closed.
Fig. 28 shows a perforator (19) with one end comprising three insert tabs (20) and also comprising a raised piercing element
(14) that perforates the bottom wall (4). The opposite end is also a concentrator
(18) which concentrates the drink in an outlet jet and also includes a kicker
(twenty-one) on which a compression can be exerted. Fig. 28A shows a perspective view and Fig. 28B shows a profile view.
Fig. 29 shows the perforator (19) of Fig. 28 arranged through a plate (36) like that of Fig. 18. The insertion tabs (20) penniten the placement of the perforator (19) on the plate (36) ) and also restrict the movement of the perforator
(19) preventing it from leaving the plate (36). The perforator (19) of the figure also comprises a shelf or ring that limits the movement inwards preventing it from completely passing through the plate (36), when a compression is applied on the knocker (21). The high perforating element (14) serves as an element for tearing the lower wall (4). Fig. 29 A shows a side view of the assembly. Fig. 29B shows a view of the sectioned profile of the assembly in which the elements can be better appreciated. Fig. 29C shows a perspective view of the sectioned profile of the assembly. Fig. 29D shows another perspective view of the sectioned profile of the assembly.
Fig. 30 shows a view of the sectioned profile of a capsule (1) like that of Fig. 1 with the perforator assembly (19) and plate (36) of Fig. 29. The perforator (19) is placed waters below the lower wall (4) and it moves relatively relative to the plate (36) towards the lower wall (4), being able to be perforated. The punch (21) of the perforator (19) protrudes with respect to the shell of the capsule (1) a distance d, bounded in the figure. The capsule (1) also comprises a dispersion wall (29) of the perforated jet, arranged on the ingredient (2).
Fig. 31 shows a perspective view of the sectioned profile of a capsule
(one) with a perforator (19) as shown in Fig. 30. In this figure the ingredient (2) is not shown to facilitate the vision of the inside of the capsule (1) and the dispersion wall (29) of the perforated jet .
Fig. 32 shows one of the parts of a handle (22). It is a hub
(18) which crosses a plate (36) like that of Fig. 18 And that moves relatively thereto. One end of this component is integral to the lower wall (4) by means of a discontinuous disk (24), which offers a good surface for the joint. Inside this component runs a thread (26) with a head-shaped end (27), which drags and with the other end with a handle (25). The plate (36), the thread (26), the head (27) and the handle (25) are not shown in this figure. Fig. 32A shows a perspective view and Fig. 32B shows another perspective view.
Fig. 33 shows a handle (22) with the concentrator (18) of Fig. 32 arranged through a plate (36) like that of Fig. 18. The handle (22) comprises the concentrator (18) that crosses the plate (36) and which travels relative to said plate (36). One end is integral to the bottom wall (4) by means of a disk
(24) discontinuous. A thread (26) crosses the concentrator (18) with one end the shape of a head (27) used to drag the concentrator (18) and with the other end with a handle (25) materialized with a ring protruding from the capsule (one). The thread
(26) It comprises a fuse (28) that allows the wire to break (26) in a certain place when a certain tension value is exceeded and which is located inside the concentrator (18). Fig. 33A shows a view of the sectioned profile of the assembly in which the elements can be better appreciated. Fig. 33B shows a perspective view of the sectioned profile of the assembly. Fig. 33C shows another perspective view of the sectioned profile of the assembly.
Fig. 34 shows a sectional view of a capsule (1) like that of Fig. 1 with the handle assembly (22) and plate (36) of Fig. 33. The handle (22) has one of its ends integral with the lower wall (4) and the other end, with a handle
(25) materialized with a ring, protrudes with respect to the capsule shell (1).
The capsule (1) also comprises a dispersion wall (29) of the perforated jet, arranged on the ingredient (2).
Fig. 35 shows a detail of the area indicated in Fig. 34 in which the handle (22) arranged in a capsule (1) as shown in Fig. 34 can be seen, before and after the opening of the camera closed Fig. 35A shows the assembly before opening. Fig. 35B shows the bottom wall (4) torn and displaced downwards, being dragged by the handle (22) which is integral with it. In the figure you can also see the broken wire (26) in the fuse area (28), separating the handle (22) into two parts. In this figure the head (27) of the thread (26) used to drag the concentrator (18) can also be better appreciated.
Fig. 36 shows a perspective view of a capsule (1) like that of Fig. 34, in which the handle (25) materialized in the form of a ring can be seen, protruding from the capsule shell ( one).
Fig. 37 shows a perspective view of the sectioned profile of a capsule
(one) with a handle (22) as shown in Fig. 34. In this figure the ingredient (2) is not shown to facilitate the vision of the inside of the capsule (1). In Fig. 37 A the capsule (1) is shown at a time when a tension is started to be applied to said handle (22) and before tearing the lower wall (4). In this figure, preferred dispensing zones (23) can be seen in the lower wall (4) that are torn when a tension is applied to the handle (22). The lines on the bottom wall (4) that are directed to the center represent the tensions to which it is subjected when the handle (22) is operated. In Fig. 37 A the capsule (1) is shown with the chamber closed open when the preferred dispensing zones (23) of the lower wall (4) are torn. You can also see the broken wire (26) in the fuse area (28), separating the handle (22) into two parts.
Fig. 38 shows a perspective view of a capsule (1) like that of Fig. 1 with a removable sheet (30) disposed on the hole outside the housing (5) which, when released, opens the closed chamber allowing the exit of the beverage from the capsule (1). The removable sheet (30) comprises break zones
(31) preferably broken when a shear stress is applied to the removable sheet (30).
Fig. 39 shows a view of the sectioned profile of a capsule (1) as shown in Fig. 38. In it you can see the removable sheet (30) disposed on the hole outside the housing (5), The capsule (1) also comprises a plate (36) like that of Figure 16, without raised perforating elements (14). The capsule (1) also comprises a dispersion wall (29) of the perforated jet, arranged on the ingredient (2) and filter means (32) downstream of the ingredient (2).
Fig. 40 shows a removable cap (33) comprising an outer disk (34) and a continuous annular wall (35) that is inserted into the outlet hole of the housing (5). The continuous annular wall (35) comprises grooves that ensure tightness. Fig. 40A shows a profile view of the removable cap (33). Fig. 40B shows a sectional view of the removable cap (33). Fig. 40C is a perspective view of the removable cap (33) where the continuous annular wall (35) can be seen with grooves. Fig. 40D is a perspective view of the other side of the removable cap
(33) where the outer disc (34) shows other annular grooves to facilitate grip.
Fig. 41 shows a removable cap (33) comprising an outer disk (34), a continuous annular wall (35) that is inserted into the outlet port of the housing (5), a handle (25) and a thread ( 26) that joins the handle (25) and the outer disk (34). The continuous annular wall (35) comprises grooves that ensure tightness. Fig. 41A shows a profile view of the removable cap (33). Fig. 41B shows a sectional view of the removable cap (33). Fig. 41C is a perspective view of the removable cap (33) where the continuous annular wall (35) can be seen with grooves. Fig. 41D is a perspective view of the other side of the removable cap
(33) where the handle (25) and the thread (26) that joins the handle (25) and the outer disk (34) facilitate the grip and removal of the removable cap (33).
Fig. 42 shows a view of the sectioned profile of a capsule (l) like that of Fig. 1 with a removable cap (33) like that of Fig. 40. In it you can see the removable cap (33) inserted in the outlet hole of the housing (5). The capsule (1) also comprises a plate (36) like that of Figure 16, without raised perforating elements (14). The capsule (1) also comprises a dispersion wall (29) of the perforated jet, arranged on the ingredient (2) and filter means (32) downstream of the ingredient (2).
Fig. 43 shows a perspective view of the sectioned profile of a capsule
(1) with a removable cap (33) as shown in Fig. 42. In this figure the ingredient (2) is not shown to facilitate the vision of the inside of the capsule (1) and the dispersion wall (29 ) of the perforated jet.
Fig. 44 shows a view of the sectioned profile of a capsule (1) like that of Fig. 1 with a removable cap (33) like that of Fig. 41. In it can be seen the removable cap (33) inserted in the outlet hole of the housing (5). The capsule (1) also comprises a plate (36) like that of Figure 16, without raised perforating elements (14). The capsule (1) also comprises a dispersion wall (29) of the perforated jet, arranged on the ingredient (2) and filter means (32) downstream of the ingredient (2).
Fig. 45 shows a perspective view of a capsule (1) with a removable cap (33) like that of Fig. 41. The figure shows a removable cap (33) with the handle (25) and a thread (26) materialized in the form of a T, protruding from the capsule shell (1).
Fig. 46 shows a perspective view of a capsule (1) with a removable cap (33) like that of Fig. 40. The outer disc (34) shows annular grooves to facilitate grip and removal of the removable cap (33).
Fig. 47 shows a perspective view of a capsule (1) being inserted into a machine, where the machine comprises a cavity for receiving the capsule (1) so that the beverage can be prepared by injecting a fluid into the capsule (1) through injection means of said machine.
Fig. 48 shows a sectional profile view of a system with a capsule
(one) with a pusher (6) like that of Fig. 3, inside a cavity of a machine for preparing drinks. The cavity can be closed on the capsule (1) by means of injection means movable towards the capsule (1). The injection means comprise an injection needle (not shown in the figure) located on a pivoting injection plate. In this way, the injection plate can cooperate with the pusher (6) to push the lower wall (4) against perforation means (7) of the lower wall (4) that open the closed chamber to dislodge the beverage. The rod (8) of the pusher (6) comprises a resilient portion in the central area, which is deformable when compression is applied. Fig. 48A shows the capsule (1) inserted in the cavity without closing on the capsule (1). Fig. 48B shows a closed cavity on the capsule (1). The injection plate cooperates with the pusher (6), thus opening the closed chamber. In the figure you can see the resilient portion of the rod (8) that deforms. Curved lines in the ingredient
(2) they represent the pressure bulb generated by the pusher (6) when it moves towards the ingredient (2) and transmits efforts through the ingredient (2) by pushing the lower wall (4) arranged under the ingredient (2) against the drilling means (7).
Fig. 49 shows a user applying a compression on a capsule (1) by its phalanges gradually to move a pusher (6) or a perforator (19). Fig. 49A shows a user applying compression with both hands and Fig. 49B shows a user applying compression with one hand.
Fig. 50 shows a user applying instant compression on a capsule (1) by their hands to move a perforator (19). Fig. 50A shows a user holding the capsule (1) and Fig. 50B shows a user applying instant compression by hitting the perforator (19) against a surface.
Fig. 51 shows a user applying a tension on the handle (22) of a capsule (1) with their hands, to tear the bottom wall (4). The capsule (1) and the handle (22) are like those shown in Fig. 34. Fig. 51A shows a user holding the capsule (1). Fig. 51B shows a user applying a tension with his fingers and the help of a ring-shaped handle (25). Fig. 51C shows the capsule (1) and the broken wire (26) in the fuse area (28), separating the handle (22) into two parts. With this gesture the user opens the camera closed.
Fig. 52 shows a user applying a shear stress on a removable sheet (30) of a capsule (1) with their hands, to break the removable sheet (30) through preferential rupture zones (31). Fig. 52A shows a user holding the capsule (1). Fig. 52B shows a user applying a shear tension with their fingers, to open the closed chamber.
Fig. 53 shows a user applying a tension on a removable cap
(33) of a capsule (1) with your hands, to open the closed chamber. The capsule (1) and the removable cap (33) are as shown in Fig. 44. Fig. 53A shows a user holding the capsule (1). Fig. 53B shows the removable cap (33) removed from the capsule (1) after the user has applied a strain with their fingers. To apply the tension the user uses a thread (26) and a T-shaped handle (25) that are part of the removable cap (33). With this gesture the user opens the camera closed.
EXPLANATION OF A PREFERRED EMBODIMENT
For a better understanding of the present invention, the following examples of preferred embodiment are described, described in detail, which should be understood without limitation of the scope of the invention.
EXAMPLE 1
A cup-shaped capsule (1) was made, comprising an outer casing (5) with a curved and continuous side wall, which had the upper part open and the bottom part with a small hole for the exit of the beverage. To make the housing (5), plastic, specifically PP, molded by thermoforming and with a wall thickness between 0.5 mm and 1 mm was used. The capsule (1) was closed at the top by means of a top wall (3) multilayer plastic / EVOH / plastic with 0.3 mm thickness.
Inside the capsule an ingredient (2) consisting of 7.5 grams of compacted and vacuum ground coffee was deposited, which accompanied an atmosphere suitable for food preservation.
The capsule (1) also comprised a bottom wall (4) that enclosed the ingredient (2) in a closed chamber. The bottom wall (4) was an aluminum sheet that was between 25 and 35 microns thick and that was attached to the housing (5).
To open the closed chamber with the ingredient (2) and allow the beverage to be obtained, the capsule (1) comprised opening means that opened the lower wall (4). The opening means in turn comprised a pusher (6) that moved vertically when a compression was applied on the upper wall (3), either through the machine for preparing drinks or by the hands of a user.
The pusher (6) was arranged on the ingredient (2) and transmitted the forces through the ingredient (2) by pushing the bottom wall (4) arranged under the ingredient (2) against drilling means (7).
The pusher (6) was materialized by a single piece with a rod (8) and a sheet (10) with the flat bottom. The rod (8) comprised a resilient portion in the central zone in the form of a bellows. The sheet (10) also comprised through openings (11) distributed on its surface such that the injection fluid could be distributed in the ingredient. The sheet (10) extended to touch the housing (5) and was attached to the side walls by a welding process. In this configuration, the capsule (1) had two sub chambers inside the closed chamber, separating the injection zone from the zone with the ingredient (2).
The drilling means (7) were materialized by injection molding in a single piece consisting of a plate (36) comprising through grooves (16) that communicated both sides of the plate (36) through which it could Flow the drink. The grooves (16) were distributed over an area of the plate
(36) ring-shaped and surrounded by a continuous outer edge. The plate
(36) It also had elevated lifting elements (15) and high perforating elements (14) arranged on the face oriented towards the top of the capsule (1). The distribution on that face of the plate (36) of the perforating elevated elements (14), the elevated support elements (15) and the grooves (16) followed a regular pattern. The perforating elevated elements (14) had a pointed shape while the elevated support elements (15) had a shape that approximated a cylinder or a cone trunk with a straight generatrix perpendicular to the plate (36) and with a guideline that It was a circle or an ellipse, allowing an effective evacuation of the drink.
On the opposite side of the plate (36) continuous annular walls (17) were incorporated with openings through which the beverage ran towards the exit of the capsule (1). The annular walls (17) were staggered relative to each other and also supported the opening means on the inner face of the lower part of the housing (3). In addition, the opposite side of the plate (36) comprised a concentrator (18) in the center, which concentrated the beverage in a single jet.
EXAMPLE 2
For this materialization the capsule (1) of the previous example was used, although with another embodiment of the pusher (6).
In this case, the pusher (6) was also placed on the ingredient (2) and transmitted the forces through the ingredient (2) by pushing the bottom wall (4) arranged under the ingredient (2) against drilling means (7) . Unlike the previous example, the pusher (6) comprised a flexible and concave membrane (9) and a rod (8). The membrane (9) also included through openings (11) distributed on its surface. The edges of the pusher (6) extended to touch the wall of the housing (5) but did not join it. In this case, the housing wall (5) had a perimeter lip (12) that limited the movement of the membrane (9) in the vertical direction.
As in the previous example, the pusher (6) moved vertically when a compression was applied on the upper wall (3), either through the machine for preparing drinks or by the hands of a user.
EXAMPLE 3
For this materialization the capsule (1) of the previous examples was used, although with another embodiment of the pusher (6).
Unlike the previous example, the pusher (6) also comprised a flexible and concave membrane (9) with through openings (11) distributed on its surface and a rod (8), but the membrane (9) was attached to the housing wall (5) by welding techniques.
EXAMPLE 4
For this materialization a capsule (1) similar to that of the previous examples was used, although with another embodiment of the opening means of the closed chamber.
In this case, the opening means comprised a perforator (19) that moved vertically when a compression was applied on said perforator (19). When operated, for example by a user-induced blow, the perforator (19) pierced the bottom wall (4) by opening the closed chamber to dislodge the beverage.
The perforator (19) had one end with three insertion tabs (20) and an elevated piercing element (14) that pierced the bottom wall (4). The opposite end was also a concentrator (18) that concentrated the drink in an outlet jet and also included a knocker (21) on which a compression could be exerted to open the closed chamber.
The perforator (19) was arranged through a plate (36) with a hole in the central part. Similar to the drilling means (7) of the examples described above, the plate (36) comprised through grooves (16) surrounded by a continuous outer edge and also comprised raised lifting elements (15) arranged in one of their faces. All these elements were distributed following a regular pattern that was repeated. On the opposite side of the plate (36), continuous annular walls (17) with openings through which the beverage could flow into an outlet of the capsule (1) were arranged.
The insertion tabs (20) of the perforator (19) allowed its placement of the perforator (19) on the plate and also restricted the movement of the perforator (19) preventing it from leaving the plate (36). In order to establish the limit of the movement path of the perforator (19), it also included a shelf or ring that limited the movement inwards, preventing it from completely crossing the plate (36). The high perforating element (14) serves as an element for tearing the lower wall (4).
The previous assembly was inside the capsule (1) but in such a way that the end of the perforator (19) with the punch (21) protruded with respect to the capsule shell (1) through the outlet hole arranged in the housing (3).
Additionally, the capsule (1) also comprised a perforated dispersion wall (29), on the ingredient (2).
EXAMPLE 5
For this materialization a capsule (1) similar to that of the previous examples was used, although with another embodiment of the opening means of the closed chamber.
In this case, the opening means comprised a handle (22) with one of its ends integral to the lower wall (4), which moved vertically when a tension was applied on said handle (22) and which tore the lower wall (4 ) opening the closed chamber to dislodge the drink. The lower aluminum wall (4) comprised dispensing zones (23) consisting of slits of reduced thickness in the form of discontinuous trenches arranged annularly.
The handle (22) crossed a plate (36) and was composed of a concentrator
(18) that moved relatively with respect to her. The plate (36) was similar to that described in the previous example and had the same elements, although it also included high perforating elements (14). One end of the handle (22) was integral with the lower wall (4) by means of a discontinuous disk (24) that offered a good surface for its connection with the lower wall (4). Inside, there was a flexible plastic thread (26) with one end in the form of a head (27) and with the other end with a handle (25) materialized with a ring protruding from the capsule (1), suitable for being seized With the fingers of the hand. The wire (26) included a fuse (28) in the form of a narrowing that allowed it to break in a certain place when a certain tension value was exceeded and which was located inside the concentrator (18).
Additionally, the capsule (1) also comprised a perforated dispersion wall (29), on the ingredient (2).
When the user pulled the ring, the lower wall (4) broke through the dispensing areas (23), opening the closed chamber. When the tension continues, the wire (26) breaks in the fuse (28) inside the concentrator (18). Then the user could introduce the capsule
(1) in a machine in order to inject an injection fluid into it to prepare the beverage.
EXAMPLE 6
A capsule (1) was manufactured in the same manner as in the previous examples and with an equal housing (5) and a top wall (3).
Inside the capsule (1) an ingredient (2) consisting of 7.5 grams of compacted and vacuum soluble coffee was deposited, which accompanied an atmosphere suitable for food preservation.
The capsule (1) also comprised a removable sheet (30) of aluminum adhered to the hole outside the housing (5) thus configuring a closed chamber with the ingredient (2). To open the closed chamber with the ingredient (2), the user detached the removable sheet (30) allowing the beverage to escape from the capsule (1). The removable sheet (30) comprised preferential rupture zones (31) that broke when a shear stress was applied to the removable sheet (30).
The capsule (1) also comprised a plate (36) similar to that of example 4 but without a central hole and with a concentrator (18) on one of its faces, to concentrate the beverage in a single jet.
EXAMPLE 7
For this materialization a capsule (1) similar to that of the previous example was used, although with a removable cap (33) instead of a removable sheet (30).
Inside the capsule (1) an ingredient (2) consisting of 7.5 grams of compacted and vacuum ground coffee was deposited, which accompanied an atmosphere suitable for food preservation.
The removable cap (33) that formed the closed chamber comprised an outer disk (34) and a continuous annular wall (35) that was inserted into the outlet hole of the housing (5). The continuous annular wall (35) comprised stretch marks that ensured the tightness. In turn, the outer disk (34) had other annular grooves to facilitate the grip of the removable cap (33) by the user.
The capsule (1) also comprised filter means (32) downstream of the ingredient (2) arranged on the plate (36). The filter media (32) were a three-dimensional structure of plastic fibers forming a layer. The capsule (1) also comprised a perforated dispersion wall (29), on the ingredient (2).
EXAMPLE 8
A capsule (1) with a pusher (6) was used as in example 2. The capsule
(1) it was introduced into a capsule holder which in turn was introduced into a cavity of a machine for preparing drinks. The cavity could be closed on the capsule (1) by injection means movable towards the capsule (1). The
5 injection means comprised an injection needle located on a pivoting injection plate. In this way, the injection plate could cooperate with the pusher (6) to push the bottom wall (4) against drilling means
(7) from the bottom wall (4) that opened the closed chamber to dislodge the drink.
The injection means injected an injection fluid through the needle at a pressure of 12 bar and 95 ° C temperature into the closed chamber of the capsule
(1) that interacted with ingredient (2) to obtain coffee. From the capsule (1) a single jet of drink with intense chemical and organoleptic physical properties emerged.

权利要求:
Claims (56)
[1]
1. Capsule (1) for the preparation of beverages with active opening means comprising:
an ingredient (2) contained inside a closed chamber;
an upper wall (3) perforated through which an injection fluid penetrates the closed chamber that interacts with the ingredient (2) to obtain a beverage;
a bottom wall (4) capable of opening by means of opening means by which the beverage is dislodged from the closed chamber;
an outer housing (5) with at least one side wall;
opening means of the closed chamber;
characterized in that the opening means comprise a pusher (6) that travels along at least one dimension of said capsule (1) when a compression is applied, which pushes the bottom wall (4) against drilling means ( 7) from the bottom wall (4) that open the closed chamber to dislodge the beverage.
[2]
2. Capsule (1) according to claim 1 characterized in that the pusher (6) is arranged on the ingredient (2), moves towards the ingredient (2) and transmits efforts through the ingredient (2) by pushing the bottom wall (4) arranged under the ingredient (2) against drilling means (7).
[3]
3. Capsule (1) according to claims 1 or 2 characterized in that the pusher
(6) comprises a rod (8) that travels when a compression is applied on the upper wall (3) and a membrane (9) or a rigid or semi-rigid sheet (10) that distributes the compression forces.
[4]
Four. Capsule (1) according to claim 3 characterized in that the rod (8) comprises at least one resilient portion that is deformable when a compression is applied.
[5]
5. Capsule (1) according to claim 3 characterized in that the membrane (9) or the sheet (10) comprise through openings (11) distributed on its surface such that the injection fluid is distributed in the ingredient.
[6]
6. Capsule (1) according to claim 3 characterized in that the membrane (9) or the sheet (10) are formed by edible material.
[7]
7. Capsule (1) according to claim 6 characterized in that the edible material is soluble.
[8]
8. Capsule (1) according to claims 5 or 7, characterized in that the edges of the membrane (9) or the sheet (10) extend to the vicinity or even touch the wall or side walls of the housing (5).
[9]
9. Capsule (1) according to claim 8 characterized in that the edges are attached to the wall or side walls of the housing (5).
[10]
10. Capsule (1) according to claim 8 characterized in that the wall or side walls of the housing (5) have a perimeter lip (12) that limits the movement of the membrane (9) or the sheet (10).
[11]
eleven. Capsule (1) according to claims 9 or 10 characterized in that the membrane (9) is flexible and concave with respect to the lower wall (4).
[12]
12. Capsule (1) according to claim 11 characterized in that the membrane (9) has closing edges (13) that border the through openings (11) and that open or close its passage when the membrane (9) is deformed.
[13]
13. Capsule (1) according to claim 1 characterized in that the drilling means (7) comprise high perforating elements (14) that perforate the lower wall (4).
[14]
14. Capsule (1) according to claim 13, characterized in that the perforation means (7) also comprises elevated lifting elements
(15) that support the bottom wall (4).
[15]
fifteen. Capsule (1) according to claim 14, characterized in that the high perforating elements (14) and the elevated lifting elements (15) are distributed on a plate (36) comprising through grooves (16) that communicate both sides of the plate (36) through which the drink can flow.
[16]
16. Capsule (1) according to claim 15 characterized in that the high perforating elements (14) located on the periphery of the plate (36) have a different height from those located in the center.
[17]
17. Capsule (1) for the preparation of beverages with activatable opening means comprising:
an ingredient (2) contained inside a closed chamber;
a perforable upper wall (3) through which an injection fluid penetrates the closed chamber that interacts with the ingredient (2) to obtain a beverage;
a bottom wall (4) capable of opening by means of opening means by which the beverage is dislodged from the closed chamber;
an outer housing (5) with at least one side wall;
opening means of the closed chamber;
characterized in that the opening means comprise a perforator (19) that travels along at least one dimension of said capsule (1) when a compression is applied on said perforator (19), which perforates the lower wall
(4) opening the closed chamber to dislodge the drink.
[18]
18. Capsule (1) according to claim 17 characterized in that one end of the perforator (19) protrudes with respect to the envelope of the capsule (1).
[19]
19. Capsule (1) according to claim 18 characterized in that the end of the perforator (19) that perforates the lower wall (4) comprises at least one insertion flange (20), and the opposite end is a is a concentrator (18) which concentrate the drink in an outlet stream.
[20]
twenty. Capsule (1) according to claim 19, characterized in that the perforator (19) further comprises a raised perforating element (14), at the end that perforates the lower wall (4).
[21]
twenty-one. Capsule (1) according to claim 18 characterized in that the perforator (19) further comprises a puncher (21), arranged at the end of the perforator
(19) protruding from the capsule shell (1)
[22]
22 Capsule (1) according to claim 17 characterized in that the perforator (19) is disposed through a plate (36) located downstream of the lower wall
(4) And it moves relatively relative to said plate (36).
[23]
2. 3. Capsule (1) according to claims 1 or 17, characterized in that the compression is applied by the user by means of his phalanges, or his limbs, gradually or instantaneously.
[24]
24. Capsule (1) according to claim 1 characterized in that the compression is applied when said capsule (1) is inserted into a cavity of a machine, and / or when said cavity is closed.
[25]
25. Capsule (1) according to claim 24 characterized in that the cavity is closed by means of injection means movable to and from the capsule
(1) comprising an injection needle located on an injection plate, which compresses the capsule (1) and displaces the pusher (6).
[26]
26. A beverage preparation system comprising a capsule (1) according to any one of claims 1 or 17 and a machine for
beverage preparation adapted to functionally cooperate with said capsules, wherein said machine comprises a cavity for receiving the capsule
(1) so that the beverage can be prepared by injecting a fluid into the capsule (1) through injection means of said machine
5 characterized in that said injection means are movable to and from the capsule (1) and comprise an injection needle located in an injection plate that cooperates with a pusher (6) to push the bottom wall
(4) against drilling means (7) of the bottom wall (4) or cooperating
indirectly with a perforator (19), which open the closed chamber to dislodge the drink.
[27]
27. A beverage preparation system according to claim 26 characterized in that the injection means inject an injection fluid into the closed chamber of the capsule (1) that interacts with the ingredient (2) to obtain a beverage at a pressure between 0.5 and 30 bar.
15 28. Capsule (1) for the preparation of beverages with activatable opening means comprising:
an ingredient (2) contained inside a closed chamber;
a perforable upper wall (3) through which an injection fluid penetrates into the closed chamber that interacts with the ingredient (2) to obtain a beverage;
a bottom wall (4) capable of opening by means of opening means by which the beverage is dislodged from the closed chamber;
an outer housing (5) with at least one side wall;
opening means of the closed chamber;
25 characterized in that the opening means comprise a handle (22) with one of its ends integral with the lower wall (4), which travels along at least one dimension of said capsule (1) when a tension is applied on said handle (22) and tearing the bottom wall (4) by opening the closed chamber to dislodge the drink.
[29]
29. Capsule (1) according to claim 28 characterized in that the bottom wall
(4) comprises preferred dispensing zones (23) that tear when a tension is applied to the handle (22).
[30]
30 Capsule (1) according to claim 29 characterized in that the preferred dispensing zones (23) are areas of reduced thickness arranged in the lower wall (4).
[31]
31. Capsule (1) according to claim 28 characterized in that one end of the handle (22) protrudes with respect to the envelope of the capsule (1).
[32]
32 Capsule (1) according to claim 31, characterized in that the handle (22) is disposed through a plate (36) located downstream of the lower wall (4) and travels relative to said plate (36).
[33]
33. Capsule (1) according to claim 32 characterized in that the handle (22) comprises an end integral with the lower wall (4) by means of a continuous or discontinuous disk (24), another end with a handle (25) and a thread (26 ) that crosses the plate (36) and joins both ends.
[34]
3. 4. Capsule (1) according to claim 32 characterized in that the handle (22) comprises a concentrator (18) that crosses the plate (36) and that travels relatively with respect to said plate (36) and with an end integral with the bottom wall (4) by means of a continuous or discontinuous disk (24), a thread (26) that crosses the concentrator (18) with a head-shaped end (27) and another end with a handle (25).
[35]
35 Capsule (1) according to claim 33 or 34 characterized in that the wire (26) comprises a fuse (28).
[36]
36. Capsule (1) according to claim 35 characterized in that the fuse (28) is located inside the concentrator (18).
[37]
37. Capsule (1) for the preparation of beverages with activatable opening means comprising:
an ingredient (2) contained inside a closed chamber;
a perforable upper wall (3) through which an injection fluid penetrates the closed chamber that interacts with the ingredient (2) to obtain a beverage;
an outer housing (5) with at least one side wall and an outlet opening that communicates the outside with the inside of the housing (5);
a removable sheet (30) disposed on the hole outside the housing (5) which, when detached, opens the closed chamber allowing the beverage to exit the capsule (1);
characterized in that the removable sheet (30) comprises breakage zones
(31) preferred to break when a shear stress is applied to the removable sheet (30).
[38]
38. Capsule (1) according to claim 37, characterized in that the preferred areas of rupture (31) are areas of reduced thickness arranged in the removable sheet (30).
[39]
39. Capsule (1) for the preparation of beverages with activatable opening means comprising:
an ingredient (2) contained inside a closed chamber;
a perforable upper wall (3) through which an injection fluid penetrates the closed chamber that interacts with the ingredient (2) to obtain a beverage;
an outer housing (5) with at least one side wall and an outlet opening that communicates the outside with the inside of the housing (5);
a removable cap (33) disposed in the hole that communicates the outside with
the inside of the housing (5) that when a voltage is applied and removed opens
the chamber closed allowing the exit of the beverage from the capsule (1).
[40]
40. Capsule (1) according to claim 39 characterized in that the removable cap
(33) is attached to the housing (5)
[41]
41. Capsule (1) according to claim 39 characterized in that the removable cap
(33) comprises an outer disk (34) and a continuous annular wall (35) that is inserted into the outlet hole of the housing (5).
[42]
42. Capsule (1) according to claim 41 characterized in that the removable cap
(33) also comprises a handle (25) and a thread (26) that joins the handle (25) and the outer disk (34).
[43]
43 Capsule (1) according to claim 41 or 42 characterized in that the continuous annular wall (35) comprises grooves that ensure the tightness.
[44]
44. Capsule (1) according to claim 37 or 39, characterized in that it further comprises a plate (36) located downstream of the ingredient (2).
[45]
Four. Five. Capsule (1) according to claims 22, 32, or 44, characterized in that the plate (36) also comprises through grooves (16) that communicate both sides of the plate (36) through which the beverage can flow.
[46]
46. Capsule (1) according to claim 45, characterized in that the plate (36) also comprises elevated lifting elements (15) and / or high perforating elements (14).
[47]
47 Capsule (1) according to claims 14, 15 or 46 characterized in that the piercing raised elements (14) and / or the lifting elements
(15) they are pyramids, truncated cones, vaults, projections, punches, blades, walls or a combination of the previous ones.
[48]
48. Capsule (1) according to claims 15 or 46, whereby the distribution of the high perforating elements (14), and / or the elevated lifting elements
(15) and / or the grooves (16) follow a regular pattern that repeats.
[49]
49. Capsule (1) according to claim 48 characterized in that the raised support elements (15) are a cylinder or a cone trunk with a straight generatrix perpendicular to the plate (36) and with a guideline that is a circle or an ellipse.
[50]
fifty. Capsule (1) according to claim 48 characterized in that the grooves (16) are distributed over an area of the ring-shaped plate (36) surrounded by a continuous outer edge.
[51]
51. Capsule (1) according to claims 15,22, 32 or 44, characterized in that the opposite side of the plate (36) comprises annular walls (17) continuous, discontinuous or with openings, through which the beverage flows towards an outlet of the capsule (1).
[52]
52 Capsule (1) according to claim 15, 22, 32 or 44 characterized in that the opposite side of the plate (36) also comprises a concentrator (18) in the center, which concentrates the beverage in an outlet jet.
[53]
53. Capsule (1) according to claims 28, 37 or 39, characterized in that the tension is applied by the user by means of his phalanges, limbs, teeth or jaws, gradually or instantaneously.
[54]
54 Capsule (1) according to claims 1, 17, 28 or 37 characterized in that the bottom wall (4) or the removable sheet (30) is made of aluminum, PP, PE, PA, PS, PVDC, EVOH, PET, cellulose, starch based material or a combination of the above.
[55]
55. Capsule (1) according to claims 1, 17,28,37 or 39 characterized in that it further comprises a dispersion wall (29) of the perforated jet, on the ingredient (2).
[56]
56. Capsule (1) according to claims 1,17,28,37 or 39 characterized in that it further comprises filter means (32) downstream of the ingredient (2).
[57]
57. Capsule (1) according to claim 55 or 56 characterized in that the dispersion wall (29) or the filter means (32) are a layer with holes, a
5 lattice, a layer of fabric, a layer of nonwoven material, a porous layer or a combination of the above.

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同族专利:

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公开号 | 公开日

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ES2538740B1|2016-05-13|

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WO2016102736A3|2016-12-08|

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WO2016102736A2|2016-06-30|

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优先权:

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申请号 | 申请日 | 专利标题

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ES201401042A|ES2538740B1|2014-12-26|2014-12-26|Capsules and system for the preparation of beverages with activatable opening means|ES201401042A| ES2538740B1|2014-12-26|2014-12-26|Capsules and system for the preparation of beverages with activatable opening means|

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PCT/ES2016/070131| WO2016102736A2|2014-12-26|2016-02-26|Capsules and system for preparing beverages, including activatable opening means|