DE102018124933A1 - Sealing element for containers, in particular coffee capsules - Google Patents

Abstract

Sealing element (1) for retaining powder-like substances in a container (10), in particular coffee capsules (10), the sealing element (1) in particular having an essentially circular base area and / or an essentially circular cross section and being suitable and intended for this purpose, to be permanently attached to a hot beverage system (22), the sealing element (1) having a holding device (26) which is suitable and intended to hold the sealing element at an area of the hot beverage system (22). According to the invention, the sealing element (1) has a first area (50) which is suitable and intended to be perforated and / or a perforated area which has at least one perforation and preferably a plurality of perforations.

Description

The present invention relates to a sealing element for containers, in particular coffee capsules. In particular, these are reusable or refillable coffee capsules. Basically included are capsules for brewing not only caffeine-containing but also other hot beverage specialties such as tea extracts or cocoa. Such generally known portion coffee machines in the sense of the invention have been in use for a few years and now have a not insignificant market share in addition to the long known filter coffee machines. In principle, two procedures have prevailed here. On the one hand the use of a pad and on the other hand the use of capsules.

Since a pad or filter cushion does not seal the coffee powder airtight, it must also be packed airtight, which represents an additional packaging step and is therefore very complex. Capsules, on the other hand, whose body and lid are made of metal foil, for example, can seal the coffee powder contained in an airtight manner during the storage phase. However, with capsules after use, a separation of the rotten content in the form of coffee powder from the non-rotten capsule material is required, which is hardly done in practice. Rather, the capsules are generally thrown away as a whole. A later separation of the used capsules into the recyclable aluminum or the like on the one hand and the non-recyclable coffee content on the other hand would be extremely complex technically and is therefore problematic and hardly achievable in practice. If this is not done and the aluminum obtained with high energy input is not recycled, such capsules represent a considerable burden on the environment.

Coffee machines currently available for the preparation of, for example, espresso, etc., are either based on the principle that a filter system is completely integrated in the capsule, which can only be used once, or part of the filter system is located in the machine. The problem with the reuse of capsules is that the filter effect resulting from the lid in the case of coffee capsules which can only be used once must be replaced at least in an equivalent manner (ie while maintaining or even improving the high quality) of the coffee preparation and in particular the pressure and / or poorly seals the water-loaded part of coffee capsules.

These problems resulting from the prior art are intended to be overcome with the present invention. This task is solved by a generic insert or sealing element for a portion coffee machine, so that the associated environmental pollution can be reduced as much as possible. Therefore, a possibility is to be shown how to dispense with the capsules known from the prior art.

This object is achieved according to the invention by the subject matter of the independent claims. Advantageous embodiments and developments of the inventions are the subject of the dependent claims.

A sealing element according to the invention for retaining powder-like substances (in particular during the application of water to powder-like substances or a brewing process) in a container, in particular coffee capsules, has in particular an essentially circular base area and / or an (essentially) circular cross section and / or one the shape and / or the cross section of a die of the hot beverage system adapted base area and / or cross section and is preferably suitable and intended to be permanently attached to a hot beverage system, the sealing element having a holding device which is suitable and intended for that To keep the sealing element (in particular permanently) on (and / or in) an area of the hot beverage system. The holding device is preferably also referred to below as a fixing device or can be equipped individually or in combination with all the features of the fixing device described below. The hot beverage system can preferably be a portioned coffee machine.

According to the invention, the sealing element has a first area, which is referred to below as the perforation area, which is suitable and intended to be perforated, and / or a (already) perforated area which has at least one perforation (hole) and preferably a plurality Has perforations (holes).

This first area or perforation area is preferably perforated by (at least) one element arranged on the hot beverage system, more precisely on the press stick and / or a die of the hot beverage system, and preferably a large number of such elements. According to this application, a perforation can also mean a piercing, so that this first area or perforation area of the sealing element is pierced by at least one element of the hot beverage system, in particular a piercing mandrel. The hot beverage system can preferably have a plurality of such elements, for example engaging elements exhibit. These engagement elements can be designed, for example, as (piercing) mandrels.

The (aforementioned) perforation preferably takes place when the hot beverage system is closed, or when the press stick is transferred from an open position to a closed position. The sealing element is already inserted in a hot beverage system.

The (already) perforated area preferably has a large number of perforations. The multiplicity of perforations are preferably at least two, preferably at least four, preferably at least eight and particularly preferably at least twelve perforations. The perforated area preferably has a maximum of 30, preferably a maximum of 20, preferably a maximum of 15 perforations.

In the following, the first area which is suitable and intended to be perforated is also referred to as the perforation area. The perforation area preferably has no holes and / or openings. The perforation area is preferably at least partially circular. The perforation area is preferably circular. However, it is also conceivable that the perforation area has an annular area. The perforation area preferably follows a course which is adapted to the outer shape or the cross section of the die and / or a contact surface of the press block of the hot beverage system. The perforation area is preferably surrounded in an inner area and / or in an outer area by a further area which is not suitable and intended to be pierced in particular by an element of the hot beverage system and preferably by an engagement element and / or a mandrel of the hot beverage system .

The perforation area preferably surrounds at least one further area, in particular in its full extent. This further region preferably has at least one opening arranged in the middle. Preferably, through this further area, an application device of the hot beverage system, in particular a nozzle of the application device, can be carried out and / or at least partially inserted and / or an opening can be perforated by means of the application device.

The perforation area is preferred at least at one point and preferably in particular at the same time at a multiplicity of positions or points through one or a multiplicity of elements or engagement elements of the hot beverage system, which have a piercing area of less than one mm ² , preferably less than 0.5 mm ² and particularly preferably less than 0.1 mm ² , and an effective force on the perforation area of less than 100 Newtons, preferably less than 50 Newtons and particularly preferably less than 10 Newtons, and particularly preferably less than 5 Newtons perforable.

In a preferred embodiment, the sealing element has a second region (which is referred to below as the retention region), which is suitable and intended to hold (at least) one element of the hot beverage system in a predetermined position.

This element of the hot beverage system is preferably a prestressed element. This element is advantageously an element loaded with a spring force. This element can be, for example, a stamp and / or the application device. According to this application, an application device can preferably be understood to mean, for example, a nozzle element but also the entire element to which the nozzle is attached.

The retention area of the sealing element is preferably suitable and intended to apply a force to at least one element, preferably a spring-loaded element of the hot beverage system (preferably a stamp), or to exert a force on this element so that it (as already mentioned) is particularly permanent is held in a predetermined position. The force is preferably in a range from 1 N to 30 N, preferably from 2 N to 20 N, preferably from 3 N to 15 N, preferably from 4 N to 14 N, particularly preferably from 5 N to 12 N.

In a further preferred embodiment, the sealing element has at least one opening, particularly in the center. This opening is preferably arranged in a second area and particularly preferably in the retention area, in particular outside the perforation area, of the sealing element. According to the present invention, center is understood to mean that the opening is arranged, for example, in the case of a circular cross section of the sealing element in a center of the circle. It should also be pointed out that the sealing element can also have a different cross-section that deviates from a circular cross-section, for example a polygonal cross-section.

Preferably, the sealing element is particularly preferably the entire sealing element is at least one and particularly preferably exactly one deep-drawn part. At least one element of the sealing element is preferably designed or manufactured as a deep-drawn part. Especially the deep-drawn part preferably has the perforation area. The deep-drawn part or the sealing element is particularly preferably matched to the contour of at least one element of the hot beverage system and preferably to the contour of the die and / or to the contour of at least one area of the press block. Adapted here is preferably understood to mean that the sealing element is designed in such a way that it is at least in regions, preferably at least two and particularly preferably at least four, preferably at least six, preferably at least eight and particularly preferably over the entire cross section and / or over an entire side surface of the sealing element on at least a part and preferably on the die of the hot beverage system.

At least one surface of the sealing element is preferably Teflon-coated. That side surface of the sealing element which, when the sealing element is in the hot beverage system, is facing away from the region or surface of the sealing element on which it is arranged on the hot beverage system is Teflon-coated. The sealing element preferably has regions which are designed to be dimensionally stable and in particular do not permit perforation, and preferably the sealing element also has regions which are referred to as perforation regions and which can be perforated.

The sealing element is preferably designed and adapted to the configuration of the die and in particular the arrangement of puncture pins of the die of the hot beverage system in such a way that the sealing element and in particular the perforation area have or have penetrable material at the puncture points of the piercing pins of the die, so that preferably in cooperation with the Puncture mandrels of the die and the perforation area of the sealing element surrounding the puncture mandrels produce a desired filter effect (for the brewing process of a hot beverage). The material of the perforation area is preferably designed and in particular adapted to the puncture pins of the die in such a way that it can be penetrated or perforated by the puncture points of the puncture pins, but that the material does not form any further tear points or tear lines. Such tearing would adversely affect the filtering action and thus the quality of the coffee obtained.

The sealing element is preferably designed to be solid and / or hard and / or impenetrable, in particular impenetrable for elements of the hot beverage system and particularly preferably impenetrable for the puncture pins or other piercing elements of the hot beverage system, outside the perforation area and in particular outside the puncture areas of the puncture pins.

The sealing element is preferably on a mandrel and / or on at least one and / or a plurality of peg-like projections and / or bores and / or at least one circular disk and / or a plurality of circular disks of the hot beverage system and preferably the filter die or the die of the hot beverage system Clamping and / or screwing and / or squeezing and / or spring devices or spring systems, in particular, can be permanently arranged or fastened.

In the present invention, permanent or permanent is preferably to be understood to mean that the sealing element in the ready-to-use or ready-to-use state over a large number of brewing processes, without the sealing or filter function deteriorating significantly, in the hot beverage system at its arranged area or in the hot beverage system remains or can remain in its arranged state.

The sealing element preferably has at least one detachment device which is suitable and intended to assist detachment or removal of the sealing element, if this is desired, from the hot beverage system and in particular from the die of the hot beverage system. Preferably, the sealing element, and in particular in the installed state or in a state permanently arranged in the hot beverage system, is designed and suitable and intended for this purpose, in particular liquids and in particular water and, in particular, brewed coffee, which meets the side of the sealing element facing the container, without loss to guide or guide the perforation area and to guide it through the sealing element at least at one point of the perforation area and in particular at the perforated areas of the perforation area.

In particular, the liquid is passed between the sealing element and the puncture pins or the penetration elements of the hot beverage system. It is thus proposed that the powder-like substance in the container is acted upon by water through the application device of the hot beverage system and from there as losslessly as possible to the perforation area or to the perforated points of the sealing element, which have a filter in cooperation with the puncture pins or Form engaging elements of the hot beverage system or its matrices, arrives and is preferably removed from there or can be removed.

The loading device is preferably arranged at a central or central location of the sealing element, and particularly preferably the loading device penetrates the sealing element in an opening or at a perforated location of the sealing element (at least partially). The sealing element, with the exception of the perforated locations and with the exception of those locations in the installed state which have been pierced or perforated by the engagement elements or engagement thorns of the hot beverage system, is therefore preferably watertight. The sealing element preferably seals off from the loading device of the hot beverage system in the installed state. This is preferably understood to mean that sealing means are provided which, in the installed state or in a state permanently arranged in the hot beverage system, seal the sealing element essentially or as watertightly as possible with respect to the loading device.

In addition or alternatively, the sealing element is preferably configured and adapted to the shape of the container such that it preferably seals with respect to a container wall. Sealing means are preferably provided which are suitable and intended to seal at least a region of the sealing element and in particular an outer region of the sealing element with respect to at least one container wall and in particular in full to at least one region of the container wall, in particular the edge thereof.

The sealing element is preferably formed in one piece or in one piece. The sealing element preferably consists of a material and is in particular made of a workpiece. The sealing element is particularly preferably produced from a deep-drawing process. The sealing element is therefore preferably a deep-drawn film. The sealing element in its perforation area is preferably thin-walled in comparison to at least one further area. The perforation area is preferably a thin-walled area compared to the remaining area of the sealing element. Preferably, the sealing element preferably consists of a disk and / or a flat element of solid material, which is thin-walled in the penetration areas of the puncture device of the die in such a way that the puncture mandrels drill through the material during assembly or when the sealing element is attached to the hot beverage system can. Only then is the filter or the filter effect of the sealing element advantageously produced.

The sealing element preferably has a guide device which is suitable and intended to facilitate or guide a proposed attachment or positioning of the sealing element to the hot beverage system. For this purpose, for example, at least one and preferably exactly one, but also a plurality of openings can be provided. For example, the guide device can be realized by a centering device, which is implemented, for example, by an opening arranged in a center or in a central region of the sealing element. Such a centering device or such an opening enables the sealing element to be centered or guided, for example, on the die or more precisely on the loading device of the hot beverage system, which can be passed through this opening and must be carried out to attach the sealing element to the hot beverage system. The opening therefore not only offers the advantage that the loading device extends through the sealing element and is sufficient in the container to apply water to its contents, but this opening also offers the advantage that the attachment of the sealing element or the exact one Positioning the sealing element on the hot beverage system for permanent arrangement is facilitated and guided. The circular thorn extensions of the die then preferably stab the sealing element and in particular its perforation areas. The filter system is preferably fixed when the final position is reached.

The sealing element is preferably produced or manufactured at least partially and in particular completely from a material which consists of degradable and in particular genuinely degradable bioplastics. Such bioplastics can be based on corn starch, for example. It would also be conceivable to manufacture the sealing element at least partially and preferably completely from wood and / or bamboo and / or jute.

The sealing element preferably has a fixing device which is suitable and intended to hold the sealing element in particular securely on the die or on the hot beverage system over its entire product life. The fixing device is preferably suitable and intended to at least partially and preferably completely and completely remove the frictional connection between the matrix or the hot beverage system and the sealing element and / or to transmit such forces when the sealing element is disassembled or detached from the hot beverage system.

The sealing element is preferably at least partially and preferably completely as Injection molded plastic part. The sealing element can be in one piece or in one piece, but it can also be made in several parts or in several pieces and in particular made of elements of different materials.

The sealing element is preferably designed and adapted to the container, and vice versa, that the sealing element, when introduced in the hot beverage system, approximately completely seals and / or seals with the base area and in particular with the upper edge of the container, and particularly preferably a cavity and in particular confined a closed cavity together with the container. The sealing element is preferably designed and constructed in such a way that water, which is conveyed or fed into the container via the loading device, for example, almost without loss through the perforation area of the sealing element and in particular between the sealing element and the penetrating elements or mandrels of the die of the hot beverage system. If the filter system or sealing element has undesired leaks, this has a negative effect on the extraction result. It is therefore preferable to provide the complete amount of water for the extraction.

The hot beverage system can be both a high-pressure pump coffee machine and a centrifuge-equipped coffee machine.

In a preferred embodiment, the sealing element has a metal sheet which follows the contour of the die almost over the full area, at least in some areas. An element or sheet following the contour is preferably produced by deep drawing or by means of a deep drawing process. The sheet or the perforation area preferably has a thickness which is less than ½ mm and preferably less than 1/8 mm and particularly preferably less than or equal to 1/10 mm.

In an advantageous embodiment, the sealing element has a fixing device (holding device), which can have a clamping element that, in particular, creates a non-positive connection between the sealing element and an element of the hot beverage system and in particular the matrix and particularly preferably the loading device of the hot beverage system.

The sheet metal part of the sealing element is preferably of a circular shape in the area of the in particular circularly arranged piercing pins of the die of the hot beverage system compared to the other areas of the sheet metal part, so that the mandrels of the die can protrude through the material when the sealing element is installed. The sealing element can preferably be produced with only one sheet metal part and the filter function or sealing function can thereby be obtained. The sheet metal part preferably has a centrally arranged opening. The sheet metal part preferably has a centrally arranged clamping disk which is intended to hold the sealing element permanently in the coffee machine.

The fixing device can preferably have an axle clamping ring and / or a clamping ring and / or a shaft ring. By means of this clamping ring or axle clamping ring or shaft ring, the filter membrane can preferably be held and / or arranged and / or fastened by means of this alone on a projection and in particular on the loading device (the water-feeding piercing mandrel).

The sealing element preferably has a convex curvature essentially and in particular in cross section through the sealing element essentially with respect to the container in a state arranged on the container. However, a concave curvature is also conceivable, so that the contour of the sealing element essentially follows the course of the die or the course of the adjacent area of the hot beverage system.

The detaching device of the sealing element is preferably suitable and determined in such a way as to destroy or weaken the non-positive and / or frictional and / or positive use, in particular a non-positive connection between the sealing element and the hot beverage system. The detachment device can be implemented, for example, by a targeted linear weakening of the sealing element and, in particular, of the sheet metal part or sheet, so that, similarly to beverage cans, the clamping mechanism is preferably destroyed or reduced or weakened by actuating a pull ring and the sealing element can be removed. The detachment device preferably has a grip element, by means of which the sealing element and / or the sheet metal part of the sealing element can be severed at least in regions and at least along a line. The clamping effect and / or a non-positive connection is preferably influenced by actuating the grip element.

The sealing element preferably has two parts, and particularly preferably the sealing element consists of two parts. The part which identifies the perforation area or preferably forms the perforation area of the sealing element is preferably configured in a circular shape, and this part can preferably be made of soft and / or flexible and / or penetrable materials, such as plastic films. With regard to the first element or the first part, the second element preferably consists of a comparatively solid material such as aluminum sheet. The second element or the second part preferably has the task and is suitable and determines in particular to hold the sealing element particularly permanently on the hot beverage system and preferably on protrusions of the hot beverage system and particularly preferably on the piercing pins of the hot beverage system, such as piercing pins arranged along a circular line .

In a further advantageous embodiment, a retaining device is provided which is suitable and intended to hold and / or retain at least one element of the hot beverage system and in particular a spring-loaded or pre-stressed element of the hot beverage system, such as a pre-tensioned punch, in a predetermined position. The sealing element preferably has a second region which has the retention device and particularly preferably forms the retention device. Preferably, the retention device and particularly preferably the retention area are suitable and determine to exert or transmit force to the elements of the hot beverage system which are acted upon by at least one spring force such that this force at least partially counteracts the spring force and in particular permanently holds the spring-loaded element in a position which is from whose resting position deviates. in particular, it can be a position of the spring-loaded element in which this element has been inserted as far as possible into the die or into an element of the hot beverage system. This can preferably be a reversal point or a reversal position of the spring-loaded element.

The retention device and / or the retention area is preferably suitable for this purpose and determines to hold the spring-loaded element of the hot beverage system in a middle position, that is to say preferably in a position between its rest position and a position in which it is fully inserted into a die.

The retention device is preferably provided by a separate component. The retaining device and / or the retaining area preferably has an axle clamping ring and / or a shaft ring and / or a clamping ring, and particularly preferably the retaining device and the retaining area consists of an axle clamping ring and / or a shaft ring and / or a clamping ring and / or a shaft retaining ring.

The retention area and / or the retention device preferably serves at the same time as a sealing element or sealing device between the sealing element and the loading device and in particular a fixed water inlet of the hot beverage system.

As mentioned above, the sealing element can have a perforated area, in which, in contrast to the perforation area, perforations or perforations are already present. For example, this area can be designed as a sieve. A perforated area would also be conceivable. The perforation area or the perforated area and / or the perforated area preferably forms the ejection area. The spout area is preferably understood to mean that area of the sealing element at which the coffee leaves the container in the hot beverage system in the inserted state of the sealing element, in particular leaves it almost loss-free.

The fixing device is preferably suitable and intended to permanently arrange the sealing element on a circular projection, in particular a stamp of the hot beverage system, and in particular to permanently fix the sealing element in this position.

In an advantageous embodiment, the retention device and / or the retention area is suitable and determined to hold the spring-loaded element of the hot beverage system in a fully extended position. This fully extended position is preferably a hollow position of the element. The fully extended position is preferably a position of the element in which it protrudes as far as possible from the die and / or the press stick of the hot beverage system. The retention device and / or the retention area is preferably suitable and determined to limit and / or reduce the freedom of movement of the element subjected to spring force in at least one direction, in particular in the direction of the spring force acting. The retaining device and / or the retaining area preferably has a retaining ring or a retaining element, which is particularly preferably designed in the form of a truncated cone or a truncated cone. The spring-loaded element is preferably an element in the central area of which a fixed water inlet is arranged. The retention device and / or the retention area of the sealing element preferably borders on one of the dies facing side of the spring-loaded element. A sealing element and / or a seal is preferably provided, which seals the retaining device and / or the retaining area and / or the retaining ring with respect to the side of the spring-loaded element facing the die. A further and / or alternative seal is preferably provided, which seals the retaining device and / or the retaining area with respect to the, in particular, annular or annular perforation area.

The retention device and / or the retention area of the sealing element is preferably designed and determined in such a way that it holds the sealing element on the underside and / or preferably on the side of the spring-loaded element of the hot beverage system and preferably the stamp facing away from the die. The fixing device of the sealing element is preferably suitable and intended to hold and in particular hold the sealing element and in particular the perforation area of the sealing element on the underside, which is preferably a side of the spring-loaded element facing away from the dies and in particular the stamp of the hot beverage system fix. In this preferred embodiment, the clamping effect between a holding element of the fixing device and the hot beverage system and in particular its spring-loaded element is therefore effected on the side of the spring-loaded element facing away from the die.

The fixing device is also referred to below as a holding device. The fixing device can be designed as a molded plastic part and / or molded metal part and in particular as a two-part ring. It is also conceivable to design the holding device or the fixing device as a bent sheet metal part. The fixing device preferably holds the sealing element in such a way that the spring-loaded element is in a rest position and in particular in a completely extended position. This advantageously ensures that after the brewing process has ended, the container is thrown into a collecting container, without further manual intervention. The fixing device can be provided by a holding element which has a bore and which can in particular be clipped onto a pin-like element. In particular, the holding device or the fixing device can be guided against a tapered section of the spring-loaded element and in particular the plunger, so that this component, that is to say the fixing device or the holding device, expands until it engages in its bore. A seal is created by closing the existing opening of the fixing device or the holding device.

The fixing device can be provided by a metal molding, in particular a two-part ring. The two parts, in particular two half rings, can in this case be arranged in a frictional manner with one another by means of a screw connection. The fixing device can also have a preferably circumferential ring spring which arranges and fixes two elements of the fixing device to one another. Furthermore, two elements of the fixing device can be fastened to one another with cable ties. In addition, a fixing device can be realized via a bent sheet metal part, which can also enable locking on the hot beverage system and in particular on the spring-loaded element.

In an advantageous embodiment, the filter membrane has or consists of materials which are selected from a group of materials which are polypropylene; a polypropylene film; PET; Composite plastics; Composite plastic films; in particular composite plastic films consisting of fabric, metal films, plastic films; Plastic injection molded parts; from biodegradable materials (as above except metal foils), for example cotton fabric, corn starch, plastic injection molded parts made from corn starch; Contains steel sheet, aluminum sheet, stainless steel sheet and the like.

The fixing device and / or the retaining device and / or the retaining area and / or the retaining device of the sealing element and in particular the retaining ring and / or a retaining element can preferably be formed from a molded plastic part, from a metal molded part, a stamped sheet metal bent part and / or as a stamped sheet metal part. The fixing device and / or the holding device for a filter membrane or filter in the perforation area of the sealing element can preferably have a clamping ring. This clamping ring can be arranged on the sealing element in such a way that it can be pushed onto a projection and in particular onto the loading device of the hot beverage system, preferably in the sliding direction and in particular against a loading direction.

The sealing element or the filter membrane is preferably disassembled by destroying at least one element of the clamping ring. The sealing element is preferably disassembled from the hot beverage system by actuating at least one sleeve which spreads the clamping areas and / or spring elements of a holding device and / or the fixing device in such a way that the frictional engagement is eliminated. The sealing element preferably has a sleeve which is arranged on the inside with respect to the projection on which the sealing element is arranged. The disassembly is preferably carried out by arranging a further sleeve around the holding device and / or the fixing device.

In an advantageous embodiment, the sealing element preferably has a sealing device which is suitable and intended to enable sealing between the sealing element and the container. The seal can be formed by a preferably circumferential metal ring and / or a circumferential metal element and / or a plastic ring and / or a circumferential plastic element. The sealing element is preferably designed in such a way that in a position of the sealing element during a brewing process, the sealing device, in particular, completely contacts and thus seals at least one area of the container, in particular an upper area of the container. The contact area between the sealing device of the sealing element and the container is preferably adapted to the contour of the capsule or the contour of the container, so that the coffee grounds are preferably retained mechanically. The sealing element can have rubber-like or flexible sealing elements, but configurations without rubber-like or flexible elements are also conceivable. The contact area can be given to an area of the recess of the coffee capsule or the container, but it can also be arranged in full on a projection or on an edge of the container. However, an embodiment without a sealing device is also possible, in which, for example, a circular capsule edge lies directly against the filter membrane or the sealing element and in particular the perforation area or an area adjacent to it.

In a further advantageous embodiment, a container can have a sealing device. The sealing device can in particular be arranged over the entire circumference at the top of an edge or projection of the container or the coffee capsule. The sealing device can also be arranged around an edge or a projection of the container, that is to say in particular on the upper side and on the underside of the edge or the projection.

In a further advantageous embodiment, a molded element, preferably a peripheral molded element such as a molded ring, preferably made of plastic and / or metal, can be provided and preferably arranged on the container. This can be glued in and / or pressed etc. This element can be placed or arranged on a projection or edge of the container and at least partially protrude into a recess of the container. Deepening a container is understood to mean in particular the receiving area of the container. By means of this shaped element, stabilization of the capsule container or of the container can advantageously be increased and / or generated.

In a further advantageous embodiment, the container is stabilized by a molded part, in particular made of plastic and / or metal. The molded part preferably follows at least in regions and in particular along the receiving region of the container in the course of the container. The molded part can preferably be glued and / or pressed into the container.

The present invention is further directed to an insertion tool (hereinafter also referred to as insertion device) for the sealing element. The insertion tool is suitable for this purpose and determines the permanent arrangement of the sealing element in a hot beverage system. The insertion tool is preferably designed as a molded part. The insertion tool preferably has a molded part. The insertion tool is preferably suitable and intended to be inserted into the hot beverage system with a sealing element preferably arranged thereon, and the insertion tool is particularly preferably designed in such a way that the sealing element is permanent after the shaft has been locked or after the pressing rod of the hot beverage system or the coffee machine has been tensioned is installed or arranged on the hot beverage system. It is also conceivable that the insertion tool is designed as a sheet metal part. The insertion tool offers the advantage that automatic installation can only be carried out by inserting the insertion tool together with the sealing element into the hot beverage system and locking the shaft.

Additional tools can preferably be integrated, such as a circle cutter, which precisely cuts out the used filter film in a used coffee capsule, so that the coffee capsule is available for reuse. Tools can also be integrated for removing the filter membrane or the sealing element.

The present invention is further directed to a method for separating and / or releasing and / or ejecting the container in which a hot beverage has been brewed from the hot beverage system and in particular from the sealing element and in particular from the die of the hot beverage system. The container and / or the sealing element has a spring that separates the container from the sealing element. In particular, there is a separation when the hot beverage system is unlocked. In particular, if the stamp or a spring-loaded element of the hot beverage system is held in a predetermined position by a retaining device of the sealing element, the stamp or the spring-loaded element can have the function of ejecting the coffee capsule or the container by the Attachment of the sealing or filter system is no longer carried out and is replaced, for example, by the spring element.

In a further advantageous embodiment of the method, the sealing element is introduced into the hot beverage system and in particular the coffee machine without an additional insertion tool. The sealing element is preferably introduced or inserted manually. In particular, if the perforation area or the perforated area of the sealing element has high strength, for example a disk-shaped filter has high strength, the sealing element can also be used by hand. The sealing element preferably has a clamping device or clamping device in the center, which is particularly preferably fastened to the centrally located piercing spikes of the water supply of the hot beverage system. The sealing element preferably has or is provided with penetrable material in the area of the end piercing pins of the hot beverage system, which are arranged in particular along a circular line.

The present invention is further directed to coffee pods which have a particularly biodegradable covering, for example made of cellulose and / or a paper chamber, and completely enclose a powder-like substance such as coffee powder.

According to the invention, a sealing device is provided which is of full circumference and which in particular runs in the form of a ring.

The sealing device made of paper and / or cellulose is preferred. The edge of the coffee pad and / or the circumference of the coffee pad is preferably adapted to a capsule or a container which can be inserted and arranged in a hot beverage system such that the periphery preferably closes with the edge of the container and / or an edge region of the container. The sealing device of the coffee pad preferably follows, at least in sections and in particular completely, an area of the container, in particular the course of the edge or the projection of a container. The sealing device is preferably provided by a cellulose and / or paper ring. The sealing device advantageously prevents liquid from flowing out or escaping between the sealing element, which is permanently introduced into a hot beverage system, and the container in which the coffee pad is received.

The sealing element preferably has one sealing layer and / or two sealing layers. The sealing element is thus composed of at least or more precisely one sealing layer. This one sealing layer can have two different regions, the aforementioned first and second. In the case of a multilayer structure, for example two layers, it would be advantageous, for example, if one layer has the first region and the further layer has the second region.

The present invention is further directed to a sealing element for retaining powder-like substances (in particular during the application of water to powder-like substances or a brewing process) in a container, in particular coffee capsules, in particular has an essentially circular base area and / or a (substantially) circular cross-section and is suitable and intended to be permanently attached to a hot beverage system, the sealing element having a holding device which is suitable and intended to hold the sealing element on (and / or in) an area of the hot beverage system.

According to the invention, the sealing element has a first area (as a holding area) which is suitable and intended for holding an element of the hot beverage system in a predetermined position. The sealing element can be equipped with all of the features described above in connection with the sealing element individually or in combination of several features and vice versa.

In a preferred embodiment, the sealing element has a second area (as a perforation area) which is suitable and intended to be perforated.

This second area (perforation area) is preferably perforated by (at least) one element arranged on the hot beverage system, more precisely on the press stick and / or a die of the hot beverage system. According to this application, perforation can also mean piercing, so that this second area of the sealing element is pierced by an element of the hot beverage system. The hot beverage system can preferably have a large number of such elements, for example engagement elements. These engagement elements can be designed, for example, as mandrels.

The present invention is further directed to a sealing element for retaining powder-like substances (in particular during exposure to water or a brewing process) in a container, in particular coffee capsules, in particular has a (substantially) circular base area and / or a (in )) Circular cross-section and is suitable and intended to be permanently attached to a hot beverage system. The sealing element in this case has a first sealing layer and a second sealing layer, and these sealing layers are arranged at least in regions against one another and opposite one another, in particular one above the other, these sealing layers being connected to one another at least in regions. The sealing element can be equipped with all the features described in connection with the two sealing elements described above individually or in combination of several features and vice versa.

The first sealing layer preferably has at least one opening, in particular in the center, and preferably exactly. According to the present invention, center is understood to mean that the opening is arranged, for example, in the case of a circular cross section of the sealing element in a center of the circle. It should also be pointed out that the sealing element can also have a different cross-section that deviates from a circular cross-section, for example a polygonal cross-section. The opening could also be arranged at a point deviating from a center point. Preferably, only the first sealing layer (exactly) has an opening. There is preferably no opening or opening in the region of the second sealing layer opposite this opening, which opening has at least an equally large diameter. The second sealing layer preferably has no opening or hole.

The present invention thus preferably proposes an at least two-layer design (a multi-layer configuration would also be conceivable).

The opening is preferably, for example, a recess, so that advantageously (at least) one element of the hot beverage system can preferably be passed through the first sealing layer. This element is preferably an application device which has a nozzle. With this loading device, more precisely via the nozzle or an outlet opening of the loading device, the powder-like substance (accommodated in a container), for example coffee powder, can be supplied with water.

In particular, in addition to the loading device, another element of the hot beverage system and / or in addition to a nozzle, a further element of the loading device can preferably be passed through the opening. The further element is preferably an element that is pretensioned with respect to (at least) another part of the hot beverage system, preferably a spring-loaded element, which particularly preferably serves for tensioning or positioning and the rotationally fixed arrangement of a capsule inserted in the hot beverage system.

In a preferred embodiment, the first sealing layer and / or the second sealing layer has at least one further opening and preferably a plurality of further openings arranged on the inside in each case, in particular along a circular line in the radial direction with respect to the outer circumference (of the first sealing layer). The sealing element can preferably also have a multiplicity of openings arranged in this way. These openings can, for example, also be arranged or provided only on the first sealing layer. These openings advantageously offer a positionally accurate arrangement of the sealing element. The plurality of openings is further preferably arranged symmetrically along the outer diameter of the sealing layer. Openings of this plurality of openings which are adjacent in pairs preferably have the same distance from one another. The first sealing layer and / or the second sealing layer preferably has at least four, preferably at least eight, preferably at least twelve and particularly preferably at least 18 (in particular along a circular line) openings. The first sealing layer and / or the second sealing layer preferably has at most 40, preferably at most 24, preferably at most 18 (in particular along a circular line) arranged openings.

The aforementioned openings can be made, for example, before the sealing element is used, for example during its manufacturing process. However, it is further preferred that the openings are made immediately before the sealing element is used, for example by means of appropriate devices on the hot beverage system, for example by means of engagement elements. This fact will be explained later with reference to the accompanying drawings.

In a further preferred embodiment, the position of the second sealing layer can be changed at least in regions with respect to the first sealing layer. This is preferably a central region of the second sealing layer. This can be understood, for example, to mean that the second sealing layer can lie completely against the first sealing layer, but it is also possible for it to be a little further away from the first sealing layer and, for example, to have a bulbous shape in a central region and thus somewhat of the first sealing layer is spaced.

The position of the second sealing layer can preferably be changed at least in regions with respect to the first sealing layer along a direction which is perpendicular to a main extension plane of the first sealing layer. The first sealing layer and the second sealing layer preferably delimit a cavity which, particularly preferably (before first use or in an initial state), is only accessible from the outside via the opening arranged in the first sealing layer. The expansion of the cavity can preferably be changed in at least one direction. This is particularly preferably a direction which is perpendicular to the main extension plane of the first sealing layer and / or which runs along the direction of action if the sealing element were in a state arranged and ready for use in the heating device system. The direction of action is the direction of the water flow along which the powdery substance in the container is acted upon by the action device. The cavity is preferably free of material, but a filling with preferably elastic material is also conceivable.

At least the second sealing layer of the sealing element preferably forms a filter membrane, in particular in cooperation with an engagement element of the hot beverage system. This is to be understood to mean that at least the second sealing layer of the sealing element is suitable and intended to retain a powder-like substance in the container, which is closed or covered, for example, by the sealing element, so that this does not escape from the container when the container passes through the hot beverage system is pressurized with water and thus a brewing process is started. The element of the hot beverage system with which at least the second sealing layer forms the filter membrane can be, for example, a die and / or mandrels.

The first sealing layer preferably also interacts with an element of the hot beverage system. This can also be the aforementioned mandrels. The first sealing layer is preferably suitable and intended to hold and in particular fix the sealing element in position with respect to the container and also with respect to the hot beverage system. It would be possible, for example, for the container with the sealing element arranged thereon to be inserted into the hot beverage system and for the first sealing layer and also the second sealing layer to be pierced by the engagement elements, for example mandrels, arranged in the hot beverage system when the hot beverage system is closed.

This piercing preferably produces, for example, the filter membrane (or suitability for filter action) on the one hand, and a retaining connection with the sealing element on the other. Since this is a hot beverage system known from the prior art, for example a coffee capsule machine, its exact function is not discussed further here. However, the above-described situation arises in more detail from the attached drawings.

In a preferred embodiment, the sealing element has holding means which are suitable and intended to arrange the sealing element permanently or for a large number of brewing operations on the hot beverage system, in particular in its press stick. The holding means can be, for example, at least one adhesive coating.

An adhesive coating is preferably provided for permanent or long-term attachment of the sealing element to the hot beverage system. A prerequisite for this is, for example, their water resistance and heat resistance up to temperatures in the range of 100 ° C.

Other holding means are also conceivable, such as, for example, for the form-fitting and / or force-fitting and / or friction-fitting (permanent) arrangement or fixation of the sealing element on the hot beverage system, which position is particularly accurate. In this case, the holding means could, for example, encompass at least one and preferably a plurality of projections on the hot beverage system and / or engage in at least one and preferably in a plurality of recesses and / or recesses arranged on the hot beverage system. The holding means could preferably produce a clamping effect. The holding means could preferably cooperate with a rubber seal and / or a sealing element of the hot beverage system.

In a preferred embodiment, the first sealing layer is connected to the second sealing layer in a food-safe manner. The first sealing layer is further preferably connected to the second sealing layer in a water-tight manner. Food-safe in the course of this invention is preferably to be understood to mean that the binder has no effects on the food, for example coffee powder, provided that these come into contact with one another. More preferably, the binder is not water-soluble and can withstand higher temperatures. Higher temperatures are understood to mean, for example, temperatures of up to 100 ° C., since the usual brewing temperature of a hot beverage system is in this range.

The first and second sealing layers are further preferably connected to one another in such a way that they cannot be separated from one another without being destroyed.

In a further preferred embodiment, the first sealing layer is glued and / or welded to the second sealing layer. Various options are conceivable and preferred. For example, cyanal and / or acrylate adhesives could preferably be used. However, this should not rule out other adhesives. Ultrasonic welding would preferably be conceivable as the welding process in order to achieve the bond from the individual sealing layers, but here, too, other welding methods are not excluded.

In a preferred embodiment, the first sealing layer and the second sealing layer differ in their (manufactured) material. The first sealing layer is preferably made of a material which has (sufficiently) high strength. The first sealing layer could, for example, be a dimensionally stable element (which in particular cannot be bent). The first sealing layer is preferably adapted to the shape of the element of the hot beverage system in such a way that it has or represents a negative shape to the first sealing layer, at least in some areas and preferably almost over the entire surface. The second sealing layer preferably has high strength. It is also preferably possible that the strengths of the sealing layers differ. In principle, it is advantageous if the first sealing layer has a strength which is higher than that of the second sealing layer. For example, the first sealing layer is preferably made of sheet metal, whereas the second sealing layer is preferably made of spring steel. However, other materials cannot be excluded.

The sealing layers preferably differ in their thickness at least in regions and preferably over the entire surface. The first sealing layer advantageously has a thickness which is in a range from 500 μm and 1 μm, preferably 400 μm and 20 μm, preferably 200 μm and 50 μm, preferably 150 μm and 70 μm, particularly preferably 120 μm and 80 μm. The second sealing layer advantageously has a thickness which is in a range from 90 μm and 10 μm, preferably 80 μm and 20 μm and particularly preferably 70 μm and 30 μm, preferably 60 μm and 40 μm, particularly preferably 55 μm and 45 μm .

In general, it is advantageous according to this invention if the strength and / or the layer thickness of the first sealing layer is greater than that of the second sealing layer. Such a configuration favors the different tasks for the sealing layers. For example, as already mentioned above, the first sealing layer should perform a supporting function, which is why a higher strength is advantageous here.

In an advantageous embodiment, at least one sealing layer, preferably the second sealing layer (and / or the first sealing layer), is designed like a film. The perforation area is preferably designed in the form of a film. This is preferably due not least to the thickness ranges of the two sealing layers already mentioned above. Furthermore, such a film-like configuration offers the advantage that the individual sealing layers can thus be pierced more easily by means of the engagement elements of the hot beverage system. This in turn offers the advantage that less force has to be used by a user of the hot beverage system in order to pierce the film layers. Furthermore, such an embodiment also offers the advantage that the engaging elements of the hot beverage system are not excessively stressed, and thus the piercing, from the point of view of the engaging elements, can be carried out gently, which positively supports a longer service life of the engaging elements.

In a further advantageous embodiment, at least one of the two sealing layers is flexible, and can therefore preferably be bent. Both the first sealing layer and the second sealing layer advantageously have at least a certain amount of flexibility. Thus, advantageously neither the first sealing layer nor the second sealing layer is rigid. The sealing layers can thus preferably be subjected to a certain pressure without these immediately tearing, but rather have a certain deformation beforehand.

In a further advantageous embodiment, at least one of the two, preferably both, sealing layers has an outside diameter in a range between 1 cm and 7 cm, preferably between 2.5 cm and 5 cm and particularly preferably between 3 cm and 4 cm. It can be quite advantageous if the individual sealing layers have a different outside diameter. Here, for example, the second sealing layer could preferably have a smaller outer diameter than the first sealing layer. However, it would also be possible, for example, for the first sealing layer to have a smaller outer diameter than the second sealing layer.

The sealing layers, which together form the sealing element, are preferably able to form a gap between them. This is possible, for example, due to the flexibility of the individual sealing layers mentioned above.

More preferably, the sealing layers are able to experience an expansion without the sealing layers traveling. The gap is advantageously formed in a direction which is perpendicular to the respective main extension planes and in particular the circular surfaces of the sealing elements. The gap can have a width between 2 cm and 0.1 cm, preferably between 1.8 cm and 0.2 cm, preferably between 1.6 cm and 0.3 cm, preferably between 1.4 cm and 0.4 cm, particularly preferably between 1.2 cm and 0.5 cm. Thus, for example, as already mentioned above, an element (loading device) of the hot beverage system could be passed through the opening or recess of the first sealing layer of the sealing element and thus be arranged between the first sealing layer and the second sealing layer.

Preferably, at least one surface of the first and / or the second sealing layer and in particular exclusively the second sealing layer, preferably at least two surfaces of the second sealing layer, has a roughness Rz (average roughness depth, mean value from the measured roughness depths) of at least in sections and in particular over the entire surface 10 µm, preferably less than 8 µm, preferably less than 5 µm and particularly preferably less than 1 µm. The surface structure of the second sealing layer is preferably a surface structure which is impressed on a carrier material, such as a film, by rolling. The second sealing layer preferably has or consists of a rolled metal foil.

Such a profiling of the surface offers the advantage that the perforation of the second sealing layer in the result of pressing against protruding elevations of the hot beverage system (for example mandrels and / or perforation means and / or cone (truncated) or pyramidal (truncated) shaped projections) extremely reliable way arises. In other words, when such a surface structure of the second sealing layer is used, the formation of a (uniform) crack pattern is supported and the second sealing layer preferably forms a pattern of perforations (predetermined by the protrusions of the die), preferably without undesirably tearing them further with multiple brewing operations.

In a further advantageous embodiment, at least the first sealing layer and / or the second sealing layer preferably has a circumferential groove on the outer edge, in particular essentially following the circumferential course and / or like a circular line and / or following a circular line. As previously mentioned, depending on the arrangement and design of the sealing elements, the groove can be present in one of the two sealing layers or else in both sealing layers. The groove has a depth which is in a range of 5 mm and 0.1 mm, preferably 4 mm and 0.2 mm, preferably 3 mm and 0.3 mm, preferably 2 mm and 0.4 mm and particularly preferably 1.5 mm and 0.5 mm. A protrusion of the container, for example the coffee capsule, can advantageously engage or be inserted into this circumferential groove. The sealing element can advantageously be connected to the projection of the container by means of the circumferential groove (which advantageously achieves a sealing effect). This projection can be designed as a complementary counterpart, corresponding to the groove of the sealing element, so that a kind of plug connection can be realized.

The present application is further directed to a container for holding powdery, in particular ready-to-brew, substances. The container has an (essentially) hemispherical base body, which is watertight and is open on the hemispherical opposite side or open at the top, the container along the open side being at least partially perpendicular to the base body, in particular in the circumferential direction at least in sections and preferably in full , revolving fold. An essentially hemispherical configuration is not only understood to mean an exactly hemispherical configuration, but that the base body can have a substantially flat standing surface or floor surface in a lower region. A circumferential direction is preferably understood to mean a curve (the groove) along the circumference. The container can be designed and suitable in such a way that it is sealed or closed by the sealing element equipped above with all features individually or in combination.

According to the invention, the container has a recess in its hemispherical base body. The depression is preferably attached to an outer wall of the base body.

In a preferred embodiment, a thread is arranged within the depression, or this thread is introduced into the wall of the depression.

The container preferably has a circumferential projection arranged essentially perpendicular to the fold. The fold preferably has a constant radial distance from a center point.

As mentioned above, this projection can be, for example, an element which can be inserted or introduced into the groove of the sealing element and thus creates a connection between the sealing element and the container. This projection can have a height corresponding to the groove, which is in a range of 5 mm and 0.1 mm, preferably 4 mm and 0.2 mm, preferably 3 mm and 0.3 mm, preferably 2 mm and 0.4 mm and particularly preferably 1.5 mm and 0.5 mm.

The protrusion here can preferably be understood as an extension of the base body of the container, so that the inner wall area of the base body extends to the end of the protrusion on one surface. The circumferential fold of the container is advantageously arranged on the outer wall of the container and extends from it, as already mentioned above, at least in regions perpendicular to the outer wall. However, other configurations of the projection cannot be ruled out.

The container, for example the coffee capsule, is usually made of a metallic material. The aluminum container is preferably suitable for this purpose. However, other materials are not excluded and can also be regarded as advantageous.

The fold preferably serves, for example, to hold or carry the container in the hot beverage system into which the container is inserted. More preferably, however, specific information or identification features, for example in the form of a bar code, can also be attached to the fold. This barcode can, for example, be read out by the hot beverage system and thus set specific properties fully automatically. These specific properties include, for example, the amount of water, brewing temperature, pressure and the like.

The present application is further directed to a system comprising a container for holding powder-like, in particular ready-to-brew, substances, and a cover element which can be closed by the container. The container has a substantially hemispherical base body, which is watertight and is open on one side, in particular on the hemispherical opposite side, the container along the open side having a fold that runs at least in regions essentially perpendicular to the base body, in particular in the circumferential direction.

According to the invention, the container can be reclosed with the cover element, the cover element being connectable to the container at least in sections.

This cover element is preferably the sealing element described above, which is composed of a first sealing layer and a second sealing layer. Both the cover element (or sealing element) and the container can be equipped individually or in combination with all of the features described above in connection with the sealing element or the container.

In a preferred embodiment, the cover element has at least one opening arranged in particular in the center. This opening is preferably the aforementioned recess into which a loading device of the hot beverage system can be inserted.

The cover element is preferably detachably or firmly connected to the container. The cover element can preferably be brought (preferably reversibly) both into a position closing the container and into a position opening the container. For example, the cover element could be removed from the container or simply opened, so that the container can be filled with the powdery substance, for example. After the container has been filled accordingly, it can then be closed by means of the cover element or the sealing element. The container with the cover element is preferably designed such that it can be closed.

In order to attach the cover element to the container, various design variants are conceivable, for example the cover element and the container could be glued to one another and / or have a hinge device, for example. The container and the cover element could also be formed in one piece, in which case the cover element can be folded down. However, other design variants are also conceivable and cannot be excluded.

In a further preferred embodiment, the cover element consists of several layers. This can again involve the sealing layers mentioned above, and in addition to the arrangement described above, these can also be rotatably supported relative to one another so that they can be rotated relative to one another. The change in the extent of at least one recess or opening and preferably a plurality of openings is preferably effected and / or new openings are produced at least partially by rotating the different layers relative to one another Degrees, for example between Can be shifted or rotated 1 ° and 10 ° relative to each other.

• - Anordnen des Abdichtelements an ein Element des Heißgetränkesystems insbesondere in dessen Pressstock;
• - Halten eines Elements des Heißgetränkesystems in einem vorbestimmten Bereich;
• - Zumindest bereichsweise Perforierung des Abdichtelements durch Eingriffselemente des Heißgetränkesystems. Bevorzugt wird dabei das Abdichtelement an wenigstens einer Stelle und besonders bevorzugt an einer Vielzahl von (insbesondere entlang einer Kreislinie angeordneten) Stellen durchstechen bzw. perforiert.

The present invention is further directed to a method for, in particular permanently attaching a sealing element for retaining powder-like, in particular ready-to-brew substances in a container, in particular coffee capsules to an element of a hot beverage system and in particular a portioned coffee machine, the sealing element in particular having a first area which is particularly suitable and intended to be perforated, and / or has a perforated area which has at least one perforation and preferably a plurality of perforations, and wherein the sealing element preferably has a second area, the sealing element having a holding device for this purpose is suitable and intended to hold the sealing element on an area of the hot beverage system, characterized by the steps:

• - Arranging the sealing element on an element of the hot beverage system, in particular in its press stick;
• Holding an element of the hot beverage system in a predetermined range;
• - Perforation of the sealing element, at least in some areas, by engagement elements of the hot beverage system. The sealing element is preferably pierced or perforated at at least one location and particularly preferably at a plurality of locations (in particular arranged along a circular line).

In a further advantageous embodiment of the method, the sealing element is introduced into the hot beverage system and in particular the coffee machine without an additional insertion tool. The sealing element is preferably introduced or inserted manually. In particular, if the perforation area or the perforated area of the sealing element has high strength, for example a disk-shaped filter has high strength, the sealing element can also be used by hand. The sealing element preferably has a clamping device or clamping device in the center, which is particularly preferably fastened to the centrally located piercing spikes of the water supply of the hot beverage system. The sealing element preferably has or is provided with penetrable material in the area of the end piercing pins of the hot beverage system, which are arranged in particular along a circular line.

The present invention is further directed to a method for, in particular permanent (in particular manual and / or mechanical) attachment of a sealing element for retaining powder-like, in particular ready-to-brew substances in a container, in particular coffee capsules, to an element of a hot beverage system and in particular a portioned coffee machine, wherein the Sealing element has a first sealing layer and a second sealing layer, wherein these sealing layers are arranged at least in regions and are arranged opposite one another, in particular one above the other, these sealing layers being connected to one another at least in regions and the first sealing layer having at least one opening.

According to the invention, the method comprises the step of arranging the sealing element on an element of the hot beverage system, in particular in its press stick. Furthermore, according to the invention, at least one element of the hot beverage system is introduced through the opening into a cavity delimited by the first sealing layer and the second sealing layer. The element to be arranged or arranged in the cavity is preferably an element that is prestressed with respect to at least one further element of the hot beverage system, in particular a tensioning element. The method can preferably be carried out by means of the sealing element described above, which can have all the features described above individually or in combination.

Preferably, at least at times during the insertion of the element through the opening into the cavity between the first sealing layer and the second sealing layer, the expansion of the cavity is extended along at least one direction and preferably along the insertion direction. It is also conceivable that such a cavity is first formed between the two sealing layers by the insertion process. At least one area and preferably a central area of the second sealing layer is preferably pierced by at least one element of the hot beverage system, and particularly preferably by the loading device, during the insertion process and / or by tensioning the press stick of the hot beverage system.

Preferably, at least one of the two sealing layers, preferably the second sealing layer, is pierced in a plurality of areas during the insertion process and / or by tensioning the pressing rod of the hot beverage system by at least one element of the hot beverage system and particularly preferably by a mandrel or an engagement element.

The sealing element is preferably without prior exposure to water on the Hot beverage system permanently arranged. However, it is also conceivable that at least partially during the insertion process and / or at least temporarily during the penetration of the second sealing layer and / or the first sealing layer, water is applied to a plurality of areas.

• 1 eine grob schematische Darstellung eines Heißgetränkesystems,
• 2 eine grob schematische Darstellung eines Bereichs eines Heißgetränkesystems,
• 3 eine schematische Darstellung einer Anordnung eines Abdichtelements, eines Behältnisses und einem Bereich eines Heißgetränkesystems,
• 4 eine schematische Darstellung eines Abdichtelements,
• 5 eine Anordnung eines Abdichtelements an einem Behälter,
• 6a - 6c eine bevorzugte Ausführungsform eines erfindungsgemäßen Abdichtelements mit Rückhalteeinrichtung (Stempel eingefahren/eingedrückt),
• 7a - 7b eine bevorzugte Ausführungsform eines erfindungsgemäßen Abdichtelements mit ausgefahrenem Stempel,
• 8a-8c schematische Darstellungen einer Haltevorrichtung für Filtermembrane, als Kunststoffformteil (Stempel ausgefahren, Ruhestellung),
• 9a-c schematische Darstellungen eines als Metallformteil ausgebildete Haltevorrichtung für Filtermembrane,
• 10a - 10b schematische Darstellungen einer als Blechbiegeteils ausgebildeten Haltevorrichtung,
• 11a-11e schematische Darstellungen einer Abdichtung zwischen dem Filterelement und der Kaffeekapsel,
• 12a - 12b schematische Darstellungen einer Stabilisierung des Kapselbehälters,
• 13a und 13b schematische Darstellungen zur Demontage der Halteeinrichtung.

Further advantages and embodiments result from the attached drawings. In it show:

• 1 a rough schematic representation of a hot beverage system,
• 2nd a roughly schematic representation of an area of a hot beverage system,
• 3rd 1 shows a schematic representation of an arrangement of a sealing element, a container and an area of a hot beverage system,
• 4th a schematic representation of a sealing element,
• 5 an arrangement of a sealing element on a container,
• 6a - 6c a preferred embodiment of a sealing element according to the invention with a retaining device (stamp retracted / pressed in),
• 7a - 7b a preferred embodiment of a sealing element according to the invention with the plunger extended,
• 8a-8c schematic representations of a holding device for filter membrane, as a molded plastic part (stamp extended, rest position),
• 9a-c schematic representations of a holding device designed as a metal molded part for filter membranes,
• 10a - 10b schematic representations of a holding device designed as a bent sheet metal part,
• 11a-11e schematic representations of a seal between the filter element and the coffee capsule,
• 12a - 12b schematic representations of stabilization of the capsule container,
• 13a and 13b schematic representations for dismantling the holding device.

1 shows roughly schematically a hot beverage system 22 , for example a coffee machine. Here is the hot beverage system 22 shown in an open position, that is, the lid 30th of the hot beverage system 22 is open so that, for example, a capsule can be inserted. The capsule normally contains the powdery material, for example coffee powder. Such a capsule is here as the container 10th shown which in the hot beverage system 22 was inserted. At the bottom of the lid 30th are corresponding engagement elements 24th arranged, which will be discussed in more detail in the other figures.

2nd shows roughly schematically an area of a hot beverage system. More specifically, here is a lower area of the lid 30th (or part of a press block of the hot beverage system). Here is also a rotating head 34 to recognize which of the engaging elements 24th and also the application device 31 with nozzle attached to it 32 (or outlet opening 32 ) having. It can be seen that a large number of engagement elements 24th is present, which are arranged at a defined distance, for example symmetrically along a circular line and in the radial direction with respect to the outer circumference. The engaging elements 24th can pierce the lid of capsules known in the prior art, which can be used once, and a sealing element (not shown). The application device 31 is centered on the rotating head 34 arranged and also able to pierce the sealing element, not shown, at least in some areas.

3rd shows a schematic arrangement of a sealing element 1 with a container 10th in an area of a hot beverage system, this area being the aforementioned lid 30th acts. It should be noted here that the distances between the elements shown here 30th , 1 and 10th are only shown for a better overview. On this lid 30th are the engaging elements 24th and also the application device 31 with nozzle attached to it 32 arranged. The engaging elements 24th are here for example as spikes 24th shown. Further here are only two engagement elements 24th shown, as in 2nd shown a variety of such engagement elements 24th can be present. The engaging elements 24th are able and intended for this (or vice versa, the sealing element is designed in this way), the sealing element 1 , more precisely the sealing layers 2nd and 4th (or just one of the two sealing layers 2nd or 4th ) to pierce, causing the openings 8th come about, provided that they are not at least in some areas already in the sealing element 1 are introduced, for example, only in the first sealing layer 2nd .

Piercing the sealing layers 2nd and 4th occurs when as in 1 shown a container 10th which with a sealing element 1 is covered in a hot beverage system 22 is inserted and the lid 30th is closed. This situation is here in 3rd shown. Thereby, the engaging elements are realized 24th in interaction with the sealing layers 2nd , 4th various tasks. Firstly, the sealing element 1 through the engaging elements 24th and the sealing layer 2nd held in place so that the sealing element 1 can't slip. Secondly, by means of the sealing layer 4th and the engaging elements 24th a filter, more precisely a filter membrane. The sealing layer 4th lies so close to the engagement elements 24th that a powdery material that is inside the container 10th located, cannot pass through. The sealing layer 4th and the engaging elements 24th lie after piercing the sealing layer 4th so close together that only a liquid medium, such as brewed coffee, can pass through.

The can continue 3rd can be seen that the application device 31 through an opening 6 through the first sealing layer 2nd of the sealing element 1 can be passed through. The application device is thus located 31 between the first sealing layers 2nd and the second sealing layer 4th . The nozzle 32 which at the application device 31 is arranged, the second sealing layer 4th of the sealing element 1 pierce so that the nozzle 32 into the inside of the container 10th protrudes into the container 10th located powdery material can act with a flowable medium, such as water. Another, in particular stamp-like element, which is preferably prestressed, can be, as in 3rd can be seen in the cavity or the gap between the two sealing layers 2nd and 4th be arranged. The preferred course is as here in 3rd illustrated, a supply line running from top to bottom 40 to supply water to the nozzle 32 (centrally or centrally) through this further (preferably prestressed) element of the hot beverage system.

In addition, the 3rd the rough design of the container 10th be removed. One can see that the container 10th a hemispherical body 12th has, and on a this body 12th opposite side is open. This open side is covered by the sealing element 1 completed. It is also on the container 10th Fold circumferential (with constant radial distance) 16 to recognize which, as mentioned above, can have identification features such as a barcode, for example. Perpendicular to this fold 16 here is the circumferential preamble 18th arranged.

4th shows a schematic representation of a sealing element 1 . It can be seen here again that the sealing element 1 can be formed in one piece or in one piece. Here, the first sealing layer has 2nd an opening 6 through which a loading device, not shown 31 can be passed through. In addition, a groove (not shown) 14 be provided, which is formed circumferentially in the sealing element. This groove 14 can with a not shown projection 18th a container 10th work together.

5 shows an arrangement of a sealing element 1 on a container 10th . Here is the container 10th again with the hemispherical body 12th shown. The container also points 10th also the circumferential fold 16 on. Here is the sealing element 1 however directly on the container 10th arranged or connected to this, for example via an adhesive connection. The sealing element 1 here, too, consists of the first sealing layer 2nd which have an opening 6 has, and the second sealing layer 4th together, the sealing layers here again via the connection point 36 are connected. The sealing element 1 can be in the folding direction R can be folded up so that the container 10th for example, can be filled with the powdery material. Will the sealing element 1 in the cutting direction R down, there means to the container 10th pressed, the sealing element closes 1 the container 10th , so that no powdery material can escape. Here, the sealing element 1 in a closed state in a snap 38 engage so that the sealing element 1 is held in the closed position.

The sealing element is also referred to below as a filter membrane.

The filter membrane installed in the coffee machine 1 preferably closes approximately with the base of the capsule container 10th from (see e.g. 6c ) and forms a closed room. In terms of design, it is preferred that the centrally located spike 70 Water in the coffee capsule 10th promotes, which almost completely loss-free the circularly arranged spikes 24th the die 10th on the side facing the matrices.

Should the filter system or sealing element 1 unwanted leaks, this has a negative impact on the extraction result. The aim is therefore to provide the full amount of water for the extraction. This applies to high-pressure pump coffee machines as well as to centrifuge-equipped coffee machines.

A preferred construction variant is a sheet that almost follows the contour of the die (deep-drawn part). In the middle of the sheet metal part is preferably a clamping element 82 integrated, which on the water-feeding spike 70 fits. The sheet metal part is preferably annular in the area of the circular piercing mandrels 24th the die 10th dimensioned very thin so that when installing the filter element 1 the thorns 24th can pierce the material. Thus, the desired functions could be obtained / produced with only one sheet metal part by inserting the mandrel elements of a filter, and the clamping disk, which is arranged in the middle in particular 82 which should keep the filter permanently in the coffee machine.

If you want to remove the sheet metal part (filter element) again, the retaining lamellae or retaining arms or retaining elements of the retaining ring must be used 64 or the fixing device or the clamping device 82 what is destroyed in the two 14a and 14b is illustrated. Through targeted linear weakening of the sheet, for example through an area 84 thinner material, as in 14b illustrated, similar to beverage cans, by operating a handle 80 , for example a pull ring, the clamping mechanism of the clamping device 82 destroyed and the filter or the sealing element 1 be removed. The clamping device 82 can be realized, for example, with a shaft locking ring.

The 6a - 6c show a preferred embodiment of a sealing element according to the invention 1 with a retaining device which, when the sealing element is permanently arranged in the hot beverage system, holds a spring-loaded element of the hot beverage system, for example the plunger of a coffee machine, in a pressed-in state. In this pressed-in state, the stamp is preferably located as far as possible at least partially within the die or within the coffee machine. In this pressed-in state, the spring force acting on the element is preferably counteracted to a maximum.

The reference number 70 marks in the 6a - 7b a (fixed) water inlet or an application device of the hot beverage system. The reference number 28 in these figures again identifies a die of the hot beverage system and the reference symbol 24th Engagement elements, which are preferably designed as piercing pins. The reference number 52 indicates an area between the sealing element, referred to as the spinning area (for coffee, for example) 1 or the filter membrane 1 and the die 28 . By means of the loading device, which has a water inlet 70 contains, that is in a container 10th Coffee powder or powdery substance present with water, which is used to achieve the filter effect (formed from the interaction of the sealing element 1 and the spikes 24th (and / or the die)) as exclusively and preferably essentially loss-free through the area between the sealing element 1 and the spikes 24th the container 10th should leave again. From there, the brewed beverage flows into the spinning area 52 and is preferably forwarded from there to a vessel. The reference number 26 identifies a spring-loaded element of the hot beverage system, which is used here as a stamp 26 is executed.

At the in the 6a shown indicates the reference symbol 64 a holding element or a securing element, which the stamp 26 holds in its retracted (depressed) position. For this purpose, the spring force must be counteracted accordingly via this holding element or securing element and a correspondingly opposite force on the stamp 26 be transmitted. The reference number 66 identifies a sealing element / a seal, which the sealing element or filter element against the water inlet 70 seals. This advantageously means that no water can escape between the water inlet and the filter membrane. In the in the 6a shown embodiment engages the holding or securing element on the die 28 opposite side / surface of the stamp 66 on. In the in the 6a In the embodiment shown, the sealing element or the filter membrane is designed in one piece or in one piece.

In the in 6b shown embodiment, the filter element or sealing element consists of two parts (mode of operation as 6a) . The actual filter element (which effects the filter effect) which passes through the perforation area 50 is given in the in the 6b Embodiment shown circular and can consist of soft flexible materials, such as plastic films.

The holding and securing element 64 (second part) is preferably a rather or comparatively (in relation to the filter element) solid material, such as aluminum sheet, and has the task of the filter element or the sealing element 1 safely in the circular piercing spikes 24th to keep. The reference number 66 again identifies a sealing element or a seal between the holding / securing element and the water inlet.

6c shows another variant in which the sealing element at the location of the puncture pins 24th a perforated area, here a perforated area 68 has, which can be realized as a sieve or can have a sieve. In addition to the seal 66 between the securing element or holding element and the water inlet, the sealing element has at least one further sealing element 66 between a first area or perforation area and the second area (securing element / holding element).

The 7a , 7b show a preferred embodiment of a sealing element according to the invention 1 , wherein in a permanently arranged state of the sealing element a spring-loaded element of the hot beverage system, for example the stamp of a coffee machine, is in an extended state. This extended state is preferably the rest position of the plunger (in which the plunger is located when there are no other forces acting on it besides the spring force).

The Stamp 26 has a circular projection that can hold a retaining ring / element permanently and is therefore able to fix the disc-shaped filter element. The retaining ring 64 or the fixing device or the holding element can engage on the side of the die facing the die and thereby (permanently) hold it in a fixed (predetermined) position, as in FIG 7a illustrated, or - as in Figure 7b shown - on that of the die 28 opposite side of the stamp 26 attack. In the former embodiment ( 7a) sealing elements are preferably provided between the perforation area or the filter membrane and the retaining ring (retaining element) and between the retaining ring (retaining element) and the stamp. In the latter embodiment, a holding element is preferred 64 (For example, a shaft locking ring) is provided, which preferably brings about a clamping effect on the side of the stamp facing away from the die. Here, sealing elements are preferred between the holding element and the perforation area or the filter membrane or a film 66 provided that prevent water from flowing through the water inlet between the holding element and the film or the perforation area.

8a-8c illustrate a fixing device or a holding device or a holding element for filter membrane (see 7a) which around an extended stamp 26 (especially in the rest position) can be clamped or clipped. This holding device can be designed as a molded plastic part.

If the plastic molded part is guided with its opening (illustrated in 8b with the arrow shown therein) against the tapered section of the stamp 1 , the component expands until it snaps into the hole. The filter element or sealing element is now secured against falling out.

The existing opening of the molded plastic part should preferably be closed with a piece of the same size (see dashed line in 8c ). A sealing of the filter membrane is created.

The 9a-9c illustrate a holding device or fixing device designed as a metal molded part. For example, this can be designed as a two-part ring (stamp extended). 9a shows a fixability of the two parts of the two-part holding device via screwing, 9b via a circumferential ring spring (can also be multi-part) and 9c with cable tie.

The holding device or the fixing device can also, as in 10 a, b shown, be formed as a bent sheet metal part, which also has a lock 86 can have.

The 11a-e illustrate possible configurations of a seal between a filter element and a coffee capsule. Here, as in 11a , the sealing element 66 as a sealing ring 67 , for example as a metal ring and / or plastic ring, and be arranged on the filter element or the sealing element. This sealing element 66 preferably contacts the capsule or the container 10th in an upper area of the receiving area of the container 10th .

The annular section of the sealing element 66 the shape of the capsule is preferably adjusted so that the coffee grounds are mechanically retained. It doesn't have to be a rubbery or flexible seal.

11b shows a further embodiment of the sealing element 66 on the filter element or sealing element 1 , which is arranged on a region of the sealing element at which this on the fold 16 or the edge or a projection of the capsule / the container or contacts it there.

11c shows an embodiment without a seal. Here the circular capsule edge lies directly against the filter membrane or the perforation area or an area of the sealing element adjoining this.

11 d shows a seal between the filter element or the sealing element and the coffee capsule, in which the sealing element 66 at the top of the fold 16 or the edge 16 or a head start 16 the capsule or container 10th (the coffee capsule) is arranged.

Also 11e shows a seal between the filter element or the sealing element and the coffee capsule, in which the sealing element 66 is arranged on the coffee capsule. In the embodiment shown here, the sealing element is around the edge of the fold 16 , and thus both on the top and the bottom of the fold 16 arranged.

The 12a, b illustrate preferred embodiments of stabilizing the capsule container or a container 10th . This can, as in 12a shown, by means of a form ring 72 in particular made of plastic and / or metal. The form ring 72 can be glued into the container or the coffee capsule and / or pressed etc.

In the in 12b Embodiment shown is the stabilization of the container by a molded part 73 realized, which preferably consists of plastic / metal and can be glued and / or pressed into the coffee capsule or a container. The molded part preferably follows 73 the course of the coffee capsule 10th .

1. 1) Als Formteil ausgebildetes Einbringwerkzeug

Insertion tool (not shown) for the filter system and in particular for the sealing element (installation automatically):

1. 1) Insertion tool designed as a molded part

• 2) Als Blechteil (wie oben) ausgebildetes Einbringwerkzeug.

Is inserted into the coffee machine with the filter membrane like a coffee capsule. The filter element is permanently installed when the shaft is locked.

• 2) Insertion tool designed as a sheet metal part (as above).

• Es können Zusatzwerkzeuge integriert sein, wie beispielsweise ein Kreisschneider, der bei einer gebrauchten Kaffeekapsel präzise die gebrauchte Filterfolie herausschneidet, so dass die Kaffeekapsel der Wiederverwendung zur Verfügung steht.

General:

• Additional tools can be integrated, such as a circle cutter, which precisely cuts out the used filter film in a used coffee capsule, so that the coffee capsule is available for reuse.

Tools can also be integrated for removing the filter membrane from the coffee capsule.

• Wenn der scheibenförmige Filter eine hohe Festigkeit aufweist, so kann dieser auch von Hand eingesetzt werden. In der Mitte befindet sich bevorzugt eine Klemmvorrichtung, welche an dem mittig angeordneten Einstechdorn der Wasserzuführung befestigt wird. Entscheidend ist, dass der Filter im Bereich der kreisförmig angeordneten Einstechdorne mit durchdringungsfähigem Material versehen ist. Dies ist bei allen Konstruktionsvarianten zwingend erforderlich (siehe 6a-6c sowie 7a-7b).

Inserting the filter membrane into a coffee machine without insertion tool (by hand):

• If the disc-shaped filter has a high strength, it can also be used by hand. In the middle there is preferably a clamping device which is fastened to the centrally located spike of the water supply. It is crucial that the filter is provided with penetrable material in the area of the circular piercing pins. This is imperative for all construction variants (see 6a-6c as well 7a-7b) .

• Bevorzugt weist die Kaffeekapsel oder das Filterelement eine Feder auf, die die Kaffeekapsel vom Filterelement trennt.
• Da der Stempel diese Funktion durch Anbringung eines Dauerfiltersystems nicht mehr ausführen kann, muss diese durch oben beschriebene Maßnahmen ersetzt werden.

Eject or separate the coffee capsule from the matrix (especially after brewing):

• The coffee capsule or the filter element preferably has a spring which separates the coffee capsule from the filter element.
• Since the stamp can no longer perform this function by attaching a permanent filter system, it must be replaced by the measures described above.

Figures 6a - 7b show the stamp which has become inactive.

• - Polypropylenfolie, PET etc., Verbundkunststoffolien bestehend aus (Gewebe, MetallfolienKunststofffolien), Kunststoffspritzgussteil
• - Aus biodegredablen Materialien wie oben. Außer Metallfolien oder beispielsweise Baumwollgewebe, Kunststoffspritzgussteil aus Maisstärke
• - Stahlblech, Alublech, Edelstahlblecht etc.

The filter membrane ( 6a-c , 7 ) or the sealing element can consist of the following materials or have the following materials:

• - Polypropylene film, PET etc., composite plastic films consisting of (fabric, metal films, plastic films), plastic injection molding
• - Made from biodegradable materials as above. In addition to metal foils or, for example, cotton fabric, plastic injection molded parts made from corn starch
• - steel sheet, aluminum sheet, stainless steel sheet etc.

The holding device for the filter membrane ((retaining ring) stamp extended ( 7a, b )) or the fixing device can be designed as a plastic molded part, metal molded part, sheet metal stamped bent part and / or sheet metal stamped molded part.

The 13a , 13b show the loosening or dismantling of the holding device 78 or a fixing device for filter membranes in general.

13a illustrates disassembly by destruction. The reference number 75 indicates a spring piece. A clamping ring is preferred 74 intended. In the sliding direction, which is illustrated by the two arrows, force is preferably exerted on the clamping ring.

13b illustrates a further preferred embodiment of the implementation of the disassembly by actuating a sleeve 76 . A sleeve is provided 77 , which rests on the inside of the clamping device or a fixing device. The sleeve preferably has 76 an internal thread and is on the filter element and indirectly on the inner sleeve 77 applied and / or pushed on and / or turned on. As a result, the spring element or the spring elements are preferably spread out, so that the frictional engagement is canceled.

Summary:

• Erstens müssen bzw. sollen die Einstechfiltersysteme an den Einstichstellen der Einstichdorne der Matrize durchdringbares Material aufweisen, so dass vorteilhaft die gewünschte Filterwirkung erzeugt wird.

The various design approaches can preferably be reduced to the following points:

• First, the puncture filter systems must or should have penetrable material at the puncture points of the puncture mandrels of the die, so that the desired filter effect is advantageously produced.

Alternatively and / or additionally, the filter element can be solid, hard and / or impenetrable outside the puncture areas of the puncture pins.

Alternatively and / or additionally, the filter element on the mandrel and / or peg-like projections and / or bores and / or circular disk (s) of the filter matrix, in particular by means of clamping and / or screwing and / or squeezing and / or spring systems in particular be permanently attached.

Alternatively and / or additionally, the filter element has means which are suitable and intended to remove the filter element (if desired), in particular at a predetermined or desired point in time, from the die of the coffee machine.

• Um ein Kaffeegetränkt zu erhalten, muss heißes Wasser durch Kaffeemehl zu einem Filtersystem geleitet werden, welches das Kaffeemehl zurückhalten soll.

Water supply:

• To get a coffee soaked, hot water has to be led through ground coffee to a filter system, which is supposed to hold back the ground coffee.

It should generally be avoided that fresh water is led past the ground coffee due to leaks, leaks, etc. In the present invention, fresh water is preferably introduced centrally into the coffee capsule, which preferably has to emerge from the circular piercing spikes.
Please refer 2nd (32 after 24) and the water flow shown therein.

• Das Filtersystem besteht idealerweise oder bevorzugt aus einer Scheibe festen Materials, welches in den Durchdringungsbereichen der Einstechvorrichtung der Matrize derartig dünnwandig gestaltet ist, so dass die Einstichdorne sich bei Montage durch das Material bohren können.
• Erst dann ist bevorzugt der Filter hergestellt.

Conclusion:

• The filter system ideally or preferably consists of a disk of solid material, which is made thin-walled in the penetration areas of the piercing device of the die, so that the piercing pins can drill through the material during assembly.
• Only then is the filter preferably produced.

In order to be able to insert the filter element into the coffee machine (assembly) with a central alignment, it is advisable to provide the disc in the center (center) with a hole that is centered on the (water) inflow tube of the die. The circular spinous processes of the die preferably pierce the disk element.

When the final position is reached, the filter system is preferably fixed.

Biotechnological consideration:

• Since the goal is to produce as little waste as possible, genuinely degradable bio-plastics can be used particularly advantageously, for example based on corn starch.
• Even the use of wood would be interesting.

• Darüber hinaus ist der Fixiervorrichtung des Filterelementes besonders Rechnung zu tragen, da sie die Aufgabe besitzt, über die gesamte Produktlebensdauer das Filterelement an der Matrize sicher zu halten.

Fixing device:

• In addition, special attention must be paid to the fixing device of the filter element, since it has the task of securely holding the filter element on the die over the entire product life.

On the other hand, the fixing device also has the task of removing the frictional connection between the die and the filter membrane in the event of disassembly.

The applicant reserves the right to claim all of the features disclosed in the application documents as essential to the invention, provided that they are new to the prior art, individually or in combination. It is also pointed out that features that may be advantageous in themselves were also described in the individual figures. The person skilled in the art immediately recognizes that a certain feature described in a figure can be advantageous even without the adoption of further features from this figure. The person skilled in the art also recognizes that advantages can also result from a combination of several features shown in individual or in different figures.

Reference list

1

Sealing element, filter membrane

2nd

first sealing layer

4th

second sealing layer

6

opening

8th

opening

10th

container

12th

Basic body

14

Groove

16

Fold

18th

head Start

20th

gap

22

Hot beverage system

24th

Engagement elements, spike

26

stamp

28

die

30th

cover

31

Loading device

32

jet

34

Rotating head

36

Liaison

38

Snap-in device

40

Supply

50

Perforation area

52

Spinning area

60

second area

62

Restraint area or restraint device

64

Holding / securing element

66

Sealing element / seal

67

Sealing ring

68

perforated area

70

Water supply (fixed)

72

Shaped ring

73

Molding

74

Clamping ring

75

Spring piece

76

Sleeve

77

Sleeve

78

Holding device

80

Grip element

82

Clamping device

84

Area of thin material

86

Interlock

R

Folding direction

Claims (15)

Sealing element (1) for retaining powder-like substances in a container (10), in particular coffee capsules (10), the sealing element (1) in particular having an essentially circular base area and / or an essentially circular cross section and being suitable and intended for this purpose, to be permanently attached to a hot beverage system (22), the sealing element (1) having a holding device (26) which is suitable and intended to hold the sealing element at a region of the hot beverage system (22), characterized in that the Sealing element (1) has a first area (50) which is suitable and intended to be perforated and / or has a perforated area which has at least one perforation and preferably a plurality of perforations. Sealing element (1), after Claim 1 , characterized in that the sealing element (1) has a second region (60) which is suitable and intended to hold an element of the hot beverage system in a predetermined position. Sealing element (1) according to one of the preceding claims, characterized in that the sealing element (1) has at least one opening (6), in particular in the center. Sealing element (1) after Claim 3 , characterized in that the opening (6) is arranged in a second region of the sealing element (1). Sealing element (1) according to one of the preceding claims, characterized in that the sealing element has a sealing layer and / or two sealing layers. Sealing element (1) according to at least one of the preceding claims, characterized in that the position of the second region (4) can be changed at least in regions with respect to the first region (2). Sealing element (1) according to at least one of the preceding claims, characterized in that at least the second region (4) forms a filter membrane, in particular in connection with an engagement element (24) of the hot beverage system (22). Sealing element (1) according to at least one of the preceding claims, characterized in that the regions (2, 4) differ at least in regions and preferably over the entire area in their thickness (D). Sealing element (1) according to at least one of the preceding claims, characterized in that the sealing element has an outer diameter in a range between 1 cm and 7 cm, preferably between 2.5 cm and 5 cm and particularly preferably between 3 cm and 4 cm. Container (10) for holding powder-like, in particular ready-to-brew, substances, the container (10) having a substantially hemispherical base body (12) which is designed to be watertight and is open on the essentially hemispherical opposite side, the container (10 ) along the open side has a fold (16) circumferentially at least in regions perpendicular to the base body (12), characterized in that the container (10) has a circumferential projection (18) arranged essentially perpendicular to the fold. Container (10) after Claim 10 , characterized in that the container (10) has a recess in its hemispherical base body. Container (10) after Claim 11 , characterized in that the container (10) has a thread within the recess. System comprising a container (10) for holding powder-like, in particular ready-to-brew substances, and a cover element (20) which can be closed off the container (10), the container (10) having a substantially hemispherical base body (12) which is designed to be watertight and is open on one side, in particular on the hemispherical opposite side, the container (10) along the open side having an at least partially perpendicular to the base body (12) in particular in the circumferential direction circumferential fold (16), characterized in that the The container (10) can be reclosed with the cover element (20), the cover element (20) preferably being at least partially connectable to the container (10). System according to Claim 13 , characterized in that the cover element (20) is detachably or firmly connected to the container (10). Method for, in particular permanently attaching a sealing element (1) for retaining powder-like, in particular ready-to-brew substances in a container (10), in particular coffee capsules (10) to an element of a hot beverage system (22) and in particular a portioned coffee machine, the sealing element having a first area which is suitable and intended to be perforated and / or has a perforated area which has at least one perforation and preferably a multiplicity of perforations, the sealing element (1) having a holding device (26) which is suitable and is intended to hold the sealing element on an area of the hot beverage system (22), characterized by the steps: - arranging the sealing element (1) on an element of the hot beverage system (22), in particular in its press block; Holding an element of the hot beverage system in a predetermined range; - Perforation of the sealing element, at least in some areas, by engagement elements of the hot beverage system.

Images