EP0494949A1 - Coffee infusion filter for preparing cup-sized portions of filter coffee - Google Patents
Coffee infusion filter for preparing cup-sized portions of filter coffeeInfo
- Publication number
- EP0494949A1 EP0494949A1 EP19900915438 EP90915438A EP0494949A1 EP 0494949 A1 EP0494949 A1 EP 0494949A1 EP 19900915438 EP19900915438 EP 19900915438 EP 90915438 A EP90915438 A EP 90915438A EP 0494949 A1 EP0494949 A1 EP 0494949A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coffee
- filter
- folding
- cup
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/02—Coffee-making machines with removable extraction cups, to be placed on top of drinking-vessels i.e. coffee-makers with removable brewing vessels, to be placed on top of beverage containers, into which hot water is poured, e.g. cafe filter
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/06—Filters or strainers for coffee or tea makers ; Holders therefor
Definitions
- Coffee brewing filter for the preparation of a cup portion of older coffee.
- the invention can be used in the area of the preparation of cup portions of filter coffee and relates to a coffee brewing filter for producing at least one cup portion of filter coffee.
- the quality and strength of a coffee beverage depend primarily on the type and quantity of the raw material used and on the method of preparation, the equipment used and the water.
- the amount of ground coffee used per cup is very dependent on the taste needs of the individual, the citizenship of the consumer and also health
- ER S ATZBLATT Considered.
- the volume of a coffee cup is usually between 130 and 165 cc.
- the norm of a cup is assumed to be around 150 cc.
- Concentrations of 1 g to 30 g ground coffee per cup of water are recommended for the preparation of the coffee beverage.
- the terms “weak” and “strong” coffee fluctuate greatly in terms of their concentrations.
- a “medium-strong coffee” is a drink that is prepared from 6 to 8 g of ground coffee per cup.
- the coffee In the infusion process, the coffee is brought together with the boiling water outside the container holding the filter, such as a coffee pot or the like.
- the filtering of the coffee thus takes place outside the container, which is tedious and uneconomical if, for example, only a cup of filter coffee is produced.
- the coffee aroma and other the coffee component is also possible.
- REPLACEMENT LEAF Process can be produced in the interior of the cup.
- a coffee brewing device designed in accordance with the invention, the production of a cup portion of filter coffee is moved into the interior of a coffee cup or another suitable container.
- the filtering process no longer takes place outside the container, but in the container itself.
- the coffee brewing filter has been inserted into a coffee cup, only boiling hot water is fed to the coffee brewing filter through its watering hole, the boiling water supplying the coffee brewing filter passes through and is brought together with the cup port of ground coffee arranged in the interior of the filter.
- the fi ltering process then takes place even through the side wall of the molded body of the coffee brewing filter made of fi lter paper.
- the filter coffee produced passes through the side wall into the interior of the coffee cup and after the amount of boiling water corresponding to the content of a coffee cup has been fed to the coffee maker, the coffee maker filter is removed from the cup and a cup of filter coffee is available.
- the coffee brewing filter stands vertically in the interior of the cup and does not float due to its own weight, so that the coffee brewing filter takes over the function of a fixed filter.
- the design of the molded body of the Inaufbrühfi filter is such that the brewed filter coffee in the lower region of the Inaufbrühfi filter exits into the interior of the cup.
- the upper region of the shaped body of the coffee brewing filter is designed such that when
- the molded body maintains its inherent rigidity and dimensional stability. This is achieved in that the interior of the molded body of the coffee maker is divided into three superimposed chambers, of which the middle chamber holds the cup portions of ground coffee.
- the side wall of the shaped body delimiting the upper boiling water absorption chamber preferably consists of water-impermeable and water-resistant material, whereas the wall sections which delimit the middle and bottom chamber consist of commercially available filter paper. In the area of these chambers, the filter paper is provided with additional stiffeners in order to ensure the dimensional stability of the coffee brewing filter during the brewing process.
- the interior formed by the central chamber of the shaped body of the coffee brewing filter is preferably larger than the layer occupied by the portion of coffee ground in the cup. This has the advantage that, when the coffee is brewed, the ground coffee floats up in this central chamber and is distributed in the rising water, thereby fully utilizing the coffee aroma.
- the coffee brewing filter with three chambers there is also
- the closure then being designed so that the closure can be removed for use.
- the boiling water is then fed directly into the ground coffee via the water inlet opening of the molded body.
- the filtering process then takes place in the region of the lower chamber or in the region of the two chambers of the coffee brewing filter.
- the coffee brewing filter is particularly advantageous here to design the coffee brewing filter as a folding body with cup-edge engagement slots, which allows the coffee brewing filter to be placed on the edge of a coffee cup, the inner body receiving the ground coffee, which is also designed as a folding body, being designed in this way that it comes to rest above the coffee cup opening or is led with a section into the interior of the coffee cup. Due to the foldability, the coffee brewing filter can be folded up in the smallest space. In addition, the folding enables the coffee brewing filter to be adapted to all sizes of the coffee cup opening.
- REPLACEMENT LEAF 1 is a diagrammatic view of the coffee brewing filter
- FIG. 3 shows the coffee brewing filter provided with an aroma-preserving outer casing in a longitudinal section
- FIG. 4 is a diagrammatic view of a coffee brewing filter with side wall reinforcements arranged in its side wall
- FIG. 9 is a top view of the coffee cup brewing filter according to FIG. 8,
- REPLACEMENT LEAF F g. 11 in a schematic view from above of the coffee brewing filter in the unfolded, ie, set-up state and
- FIG. 12 shows a side view of the filter of the coffee brewing filter.
- the coffee brewing filter designated 100 in FIGS. 1 to 5 is used to produce at least one cup portion of filter coffee and consists of a molded body 10 designed as a cylindrical hollow body 11 with an upper filling opening 15 for boiling hot water and with a base-side standing surface 13.
- the molded body 10 has a circular cross section, but the cross section can also have a different geometric shape.
- the upper water filling opening 15 is delimited by the peripheral edge 14 of the molded body 10.
- the molded body 10 can be formed open or closed on the bottom side.
- the molded body 10, and in particular its side wall 16, consist of commercially available filter paper which has sufficient inherent rigidity and dimensional stability, as is offered for coffee filters.
- the rigidity and dimensional stability of the molded body 10 are discussed in more detail below.
- the interior 12 of the molded body 10 of the coffee brewing device 100 is made of thin filter paper by means of two dividing walls 20, 120 which run transversely to the longitudinal direction of the molded body 10 and are arranged at a distance from one another
- the middle chamber 130 serves to receive a cup portion 40 of ground coffee, the coffee layer 41 resting on the lower partition 10 (FIGS. 2, 3 and 5).
- the lower chamber 230 is used for filtering coffee.
- the upper partition 20 can be flat (FIG.) Or trough-shaped (FIG. 3).
- the distance between the two partition walls 20, 120 can correspond to the height of the layer 41 formed by the cup portion 40 ground coffee, but there is also the possibility of dimensioning the chamber 130 so that the layer formed by the cup portion 40 ground coffee 41 takes up only a part of the space of the chamber 130, so that when pouring boiling water into the coffee brewing filter, the ground coffee or ground coffee can float in the incoming and accumulating water, so that the full coffee aroma
- Ground coffee can be withdrawn.
- the side wall 16 of the molded body 10 consists of commercially available filter paper. At the end, the filter paper is folded over several times and folded onto one another, so that reinforced end sections are obtained.
- the side wall 16 of the molded body 10 consists of commercially available filter paper. At the end, the filter paper is folded over several times and folded onto one another, so that reinforced end sections are obtained.
- ⁇ RS ETCH LEAF 16 of the shaped body 10 can be designed such that the filter effect extends over the entire side wall surface of the coffee brewing filter 100.
- a targeted filtering is achieved in that at least the side wall section 16c of the side wall 16 delimiting the lower chamber 230 is made of filter paper, while the other two side wall sections 16a, 16b of the side wall 16 delimiting the chambers 30, 130 are made of water-impermeable material Material exist (Fig.).
- the wall sections 16a, 16b are made of a tasteless plastic film; filter paper lined with a plastic film or water-repellent impregnated filter paper can also be used to produce the molded body 10, water-tightness then only being present in the side wall in the region of the two chambers 30, 130, so that during the brewing process the coffee brewing film is eliminated ⁇ ter 100 supplied boiling water flows through the ground coffee layer 41 into the lower chamber 230, so that the filter coffee diffuses through the side wall of the filter body 10 made of filter paper.
- the side wall section 16b of the side wall 16 of the molded body 10 can consist of filter paper, so that the wall surface formed by the side wall sections 16b, 16c then provides the actual filter for the production of the Fil lterkaffees serves.
- the coffee brewing filter 100 has dimensions which are smaller than the internal dimensions of a coffee cup. As for the height of the coffee brewing filter 100, it can be larger or smaller than the height of a coffee cup.
- REPLACEMENT LEAF provided, which consist of rod-shaped profiles made of plastics or other suitable materials and with which the side wall 16 of the molded body 10 forming filter paper are connected (FIGS. 4 and 5).
- these side wall reinforcements 17 serve at the same time to increase the intrinsic weight of the coffee brewing filter 100, so that the coffee brewing filter is prevented from being lifted, exposed or inclined sideways during the filtering process.
- the dead weight of the molded body 10 can also be increased by an appropriate choice of the material for the molded body base, for example by an appropriately thick plastic lath as the molded body base.
- the side wall 16 of the molded body 10 can also consist of a double layer of filter paper, the side wall reinforcements 17 then being arranged between the two filter paper layers 18, 19 (FIG. 5).
- the lower chamber 230 can serve to hold a sweetener, such as sugar and / or milk powder.
- the side wall section 16c of the molded body 10 delimiting the lower chamber 230 can then be separated from the remaining molded body part 16a, 16b by means of a separating perforation 60. This configuration makes it possible, if no sugar and / or no milk is desired, to obtain only black filter coffee by removing the molded part accommodating the chamber 230.
- the molded body 10 is provided on its upper circumferential edge 14 with a device 70 for hanging the coffee brewing filter 100 into a coffee cup 50, this hanging device 70 being able to be opened outwards
- HE SAT ZBLATT There is collar 71, which is circumferential and cantilevered, and which has an inherent rigidity and dimensional stability under the influence of water-impermeable material, such as plastic film, laminated paper or laminated cardboard or the like. consists.
- this hanging device 70 the coffee brewing device 100 is suspended in the interior 51 of a cup 50, so that the circumferential collar 51 of the molded body 10 is supported on the circumferential edge 52 of the cup 50 (FIG. 7).
- the formation of the collar 71 is such that a water inlet trough or a hat-like inlet for the boiling hot water is formed.
- the collar 71 is made of water-impermeable material, when pouring boiling hot water in the direction of arrow X, the water is fed via the inclined wall surface of the collar 71 to the water filling opening 15, so that all boiling hot water supplied to the coffee brewing filter 100 is forwarded.
- the shaped body 10 of the coffee brewing filter 100 has a length or a height to the interior 51 of the cup 50 that enables the coffee brewing filter 100 to be freely suspended in the cup interior 51 without that the coffee brewing is supported on the cup base 53.
- the collar 71 can be placed against the molded body side wall 16 by folding.
- the shaped body 10 of the coffee brewing filter 100 is provided with a wrapping 80 made of thin metal foil or another suitable material as a tear-open packaging (FIG. 3).
- the covering 80 can be separated and detached from the coffee brewing filter by means of a tear thread 81 or a suitably designed separating perforation, so that the
- REPLACEMENT LEAF can be used to produce a portion of filter coffee by simply inserting the coffee brewing filter 100 into a cup 50, whereupon boiling water in pipe direction X via the water filling opening
- the filter coffee outlet occurs in arrow direction X1 (FIG. 6).
- the water filling opening 15 of the molded body 10 can be covered by means of a foil made of metallic material or another, tasteless plastic. This foil, which is preferably cap-shaped, is then held on the side wall 16 of the molded body 10 by means of a separating perforation 91 (FIG. 2).
- the film 90 closing the water filling opening 15 can be detachably connected to this casing 80, so that after the film 90 has been removed, the coffee brewing device fi lter 100 can be removed from the casing 80, which corresponds to the shape and the outer dimensions of the molded body 10 of the Internaletzbruhfi filter 100.
- the partition walls 20, 30 can be designed as insert bodies and are made by means of suitable connecting means on the inner wall surface of the side wall
- FIG. 7 shows a coffee brewing filter 100 designed in this way
- REPLACEMENT LEAF which has in its interior 12 two cylindrical and bottom-side insert bodies 25, 125, the insert body 125 being supported with its upper circumferential and laterally projecting edge 125a on the upper circumferential edge 14 of the molded body 10.
- the bottom of the insert body b covers the lower partition 120.
- the shorter insert body 25 is then arranged in the interior of the insert body 125 and is supported with its upper circumferential and laterally projecting edge 25a on the circumferential edge 125a of the insert body 125.
- the bottom of the insert body 25 forms the dividing wall 20.
- Both insert bodies 25, 125 consist of filter paper. Due to the different lengths of the two insert bodies 25, 125, the middle chamber 130 is formed, which serves to hold the cup portion 40 of ground coffee.
- the coffee brewing filter 100 can also be dimensioned such that it does not only take up a single cup portion of ground coffee.
- the amount of ground coffee can also be such that more than one cup of coffee is obtained, which is particularly advantageous when it comes to large-volume cups or other types of containers.
- the molded body 10 of the coffee brewing filter 100 consists exclusively of filter paper, then environmentally friendly disposal is ensured.
- the coffee brewing filter designated by 200 consists of a cylindrical, outer folding body 201 made of a moisture-resistant material, such as cardboard, arton or paper, laminated with a plastic film or coated with a plastic, that a sufficient property
- REPLACEMENT LEAF has rigidity.
- a further folding body 220 which consists of filter paper and which holds the amount of coffee powder that is required for the production of a cup portion of filter coffee (FIG. 12).
- the filter paper is laminated on the outside with an aluminum foil; Another coating is also possible in order to achieve water impermeability.
- the aluminum foil of the inner folding body 220 has a number of small openings 221.
- This folding body 220 can be connected to the outer folding body 201, e.g. upper edge area, be firmly connected; An embodiment that can be removed from the folding body 201 is also possible.
- the upper opening 222 of the folding body 220 is by means of a peelable film, e.g. made of aluminum, sealed to ensure a flavor retention of the ground coffee in the interior of the folding body 220 over a longer period of time. For use and the brewing process, this lidding film is removed to expose the filler opening for hot water.
- the outer folding body 201 has a square or rectangular cross section, each of the four side walls 202, 203, 204, 205 being provided in the center with a folding line 202a or 203a or 204a or 204a or 205a running in the longitudinal direction of the folding body, so that due to these folding lines the Foldable body 201 is collapsible in the smallest space (FIG. 10).
- the folding body 201 In use, i.e. In the unfolded state, the folding body 201 is then folded out in a star shape (FIG. 11).
- the folding body 201 is open at the top and bottom.
- the upper edge is designated with 201a and the lower edge with 201b. In the area of the lower
- REPLACEMENT LEAF Edge 201b and i region of the corner folding lines 202b, 203b, 204b, 205b are slit-shaped recesses 205, the openings 215 formed on both sides of a corner folding line 202b, 03b, 204b, 205b, which extend vertically upwards from the lower edge, being congruent with one another .
- the coffee brewing filter 200 can be placed on the upper circumferential edge 52 of a coffee cup 50, the coffee cup edge 52 engaging in the openings 215 (FIG. 8).
- the fact that the outer folding body 201 of the coffee brewing filter 200 has wall surfaces which can be changed by means of the folding lines means that the coffee brewing filter 200 can be adapted to different coffee cup diameters.
- the inner folding body 220 has approximately the shape of a pyramid with a base area which corresponds to the shape of the cross section of the cylindrical folding body 201 in the unfolded state.
- the folding body 220 also has l extending in the longitudinal direction of the folding body
- Fold lines 2 2.a, 223a, 24a, 225a which are formed in the folding body side walls 222,223,224,225 and which extend into the top of the folding body 201 (FIG. 9).
- the bottom end of the folding body 201 is closed.
- the corner folding lines are labeled 222b, 223b, 224b, 225b.
- the fact that the inner folding body 220 and the outer folding body 201 have the same folds means that both folding bodies can be folded or unfolded in the same way.
- the dimension of the length of the two folding bodies 201, 220 to one another can be such that after the coffee brewing filter 200 has been placed on the edge of the cup 52, the inner folding body 220 opens out above the inside of the cup or extends into the inside of the cup.
- the coffee brewing filter 200 has the advantage that, thanks to its foldable geometry, it saves space with coffee powder and, for example, in the lower area with powdered milk, sugar and the like. can be packed together.
- the coffee brewing filter 200 adapts to every cup shape.
- the folded packaging is closed on all sides and after the upper closure has been torn open, the coffee brewing filter is obtained and the coffee brewing process can be carried out by adding boiling hot water. Because the coffee brewing filter 200 is placed on the edge of the coffee cup, it does not stand in the coffee infusion. The aroma of the coffee is thus in no way impaired.
- the entire molded body of coffee brewing Lter 200 can be produced as a folding pack and has a high stability due to its star shape. During the brewing process, the boiling water runs through the coffee brewing filter so that pure brewed "filter coffee” is collected in the cup.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Apparatus For Making Beverages (AREA)
Abstract
Un filtre pour faire du café (100) en vue de préparer l'équivalent d'une tasse de café filtre comporte un corps façonné (10) se présentant sous la forme d'un corps creux cylindrique (11) réalisé en un papier-filtre qui possède une rigidité propre et une résistance à la déformation suffisantes lorsqu'il est mouillé. Le corps façonné (10) présente une ouverture de remplissage (15) pour l'introduction de l'eau bouillante, et l'intérieur dudit corps (10) est divisé en une pluralité de chambres superposées (30, 130, 230). La chambre supérieure (30), qui reçoit l'eau bouillante, débouche dans l'ouverture de remplissage (15) destinée à l'eau. Une portion (40) de café moulu suffisante pour une tasse est déposée sur la cloison inférieure (120) dans la chambre centrale (130). Le café filtre s'écoule par la chambre inférieure (230). Pour préparer une tasse de café filtre, le filtre à café (100) est placé dans une tasse à café et de l'eau bouillante est versée par l'ouverture de remplissage (15) du corps façonné (10). Pendant que le café passe, le filtre (100) ne flotte pas à mesure que le niveau de café monte à l'intérieur de celui-ci.A filter for making coffee (100) to prepare the equivalent of a cup of filter coffee has a shaped body (10) in the form of a cylindrical hollow body (11) made of filter paper which has sufficient rigidity and resistance to deformation when wet. The shaped body (10) has a filling opening (15) for the introduction of boiling water, and the interior of said body (10) is divided into a plurality of superimposed chambers (30, 130, 230). The upper chamber (30), which receives boiling water, opens into the filling opening (15) intended for water. A portion (40) of ground coffee sufficient for a cup is deposited on the lower partition (120) in the central chamber (130). The filter coffee flows through the lower chamber (230). To prepare a cup of filter coffee, the coffee filter (100) is placed in a coffee cup and boiling water is poured through the filling opening (15) of the shaped body (10). While the coffee is passing, the filter (100) does not float as the level of coffee rises inside it.
Description
Claims
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8912543U | 1989-10-23 | ||
DE8912543 | 1989-10-23 | ||
EP90114111 | 1990-07-24 | ||
EP90114111A EP0424615A1 (en) | 1989-10-23 | 1990-07-24 | Filter for brewing coffee for the preparation of a cup of percolated coffee |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19930112794 Division EP0578273A3 (en) | 1989-10-23 | 1990-10-23 | Coffee filter to prepare a cup of filter-coffee |
EP93112793 Division | 1993-08-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0494949A1 true EP0494949A1 (en) | 1992-07-22 |
Family
ID=25955438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19900915438 Withdrawn EP0494949A1 (en) | 1989-10-23 | 1990-10-23 | Coffee infusion filter for preparing cup-sized portions of filter coffee |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0494949A1 (en) |
JP (1) | JPH05502801A (en) |
BR (1) | BR9007771A (en) |
CA (1) | CA2071893A1 (en) |
FI (1) | FI921781A0 (en) |
HU (1) | HUT61888A (en) |
WO (1) | WO1991005501A2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2421128C (en) | 2002-03-14 | 2008-05-20 | Robert Hale | Beverage cartridge and filter assembly |
EP2989941A1 (en) * | 2014-09-01 | 2016-03-02 | Eksen Makine Sanayi ve Ticaret A.S. | Compact tea brewing appliance |
WO2016193116A1 (en) * | 2015-06-05 | 2016-12-08 | Koninklijke Philips N.V. | Method for brewing coffee and having enhanced aroma release |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR812235A (en) * | 1936-10-12 | 1937-05-03 | Cie Francaise Du Mono Service | Cardboard container with internal filters for brewing coffee or other drinks, intended for one-time use |
FR1013020A (en) * | 1950-02-18 | 1952-07-22 | Retarder-doser for coffee makers | |
FR2215188B3 (en) * | 1973-01-25 | 1976-01-30 | Bernardin Didier Fr | |
FR2316902A1 (en) * | 1975-07-10 | 1977-02-04 | Wagner Marc | Paper filter for funnel of coffee maker - is of twin trapezoidal pieces crimped together by their short and oblique edges |
DE3713609A1 (en) * | 1987-04-23 | 1988-11-10 | Jacobs Suchard Gmbh | FILTERS, IN PARTICULAR COFFEE FILTERS, AND METHOD FOR PRODUCING SUCH A FILTER |
-
1990
- 1990-10-23 EP EP19900915438 patent/EP0494949A1/en not_active Withdrawn
- 1990-10-23 WO PCT/EP1990/001793 patent/WO1991005501A2/en not_active Application Discontinuation
- 1990-10-23 BR BR909007771A patent/BR9007771A/en not_active Application Discontinuation
- 1990-10-23 HU HU133992A patent/HUT61888A/en unknown
- 1990-10-23 CA CA 2071893 patent/CA2071893A1/en not_active Abandoned
- 1990-10-23 JP JP51441190A patent/JPH05502801A/en active Pending
-
1992
- 1992-04-22 FI FI921781A patent/FI921781A0/en not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO9105501A2 * |
Also Published As
Publication number | Publication date |
---|---|
CA2071893A1 (en) | 1991-04-24 |
HUT61888A (en) | 1993-03-29 |
FI921781A (en) | 1992-04-22 |
BR9007771A (en) | 1992-08-11 |
HU9201339D0 (en) | 1992-07-28 |
JPH05502801A (en) | 1993-05-20 |
WO1991005501A3 (en) | 1991-08-22 |
WO1991005501A2 (en) | 1991-05-02 |
FI921781A0 (en) | 1992-04-22 |
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