DK176265B1 - Coffee maker and method for preparing a coffee beverage by means of the coffee maker - Google Patents

Coffee maker and method for preparing a coffee beverage by means of the coffee maker Download PDF

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Publication number
DK176265B1
DK176265B1 DK199900771A DKPA199900771A DK176265B1 DK 176265 B1 DK176265 B1 DK 176265B1 DK 199900771 A DK199900771 A DK 199900771A DK PA199900771 A DKPA199900771 A DK PA199900771A DK 176265 B1 DK176265 B1 DK 176265B1
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DK
Denmark
Prior art keywords
coffee
boiling
container
water
closed container
Prior art date
Application number
DK199900771A
Other languages
Danish (da)
Inventor
Carsten Joergensen
Original Assignee
Pi Design Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to DK199900771A priority Critical patent/DK176265B1/en
Application filed by Pi Design Ag filed Critical Pi Design Ag
Priority to CNB008082642A priority patent/CN1209064C/en
Priority to PCT/DK2000/000290 priority patent/WO2000072736A1/en
Priority to NZ515306A priority patent/NZ515306A/en
Priority to CA002372941A priority patent/CA2372941A1/en
Priority to JP2000620854A priority patent/JP3834681B2/en
Priority to EP00938576A priority patent/EP1187546A1/en
Priority to AU53903/00A priority patent/AU772899B2/en
Priority to TW089110546A priority patent/TW487561B/en
Publication of DK199900771A publication Critical patent/DK199900771A/en
Priority to NO20015457A priority patent/NO320811B1/en
Priority to HK02106617.8A priority patent/HK1045243A1/en
Application granted granted Critical
Publication of DK176265B1 publication Critical patent/DK176265B1/en

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00Apparatus for making beverages
    • A47J31/44Parts or details or accessories of beverage-making apparatus
    • A47J31/48Clips, rings, hooks, or like devices to support filter parts while not in use
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00Cooking-vessels
    • A47J27/21Water-boiling vessels, e.g. kettles
    • A47J27/21008Water-boiling vessels, e.g. kettles electrically heated
    • A47J27/2105Water-boiling vessels, e.g. kettles electrically heated of the cordless type, i.e. whereby the water vessel can be plugged into an electrically-powered base element
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00Apparatus for making beverages
    • A47J31/04Coffee-making apparatus with rising pipes
    • A47J31/043Vacuum-type coffee-making apparatus with rising pipes in which hot water is passed to the upper bowl in which the ground coffee is placed and subsequently the heat source is cut-off and the water is sucked through the filter by the vacuum in the lower bowl
    • A47J31/047Vacuum-type coffee-making apparatus with rising pipes in which hot water is passed to the upper bowl in which the ground coffee is placed and subsequently the heat source is cut-off and the water is sucked through the filter by the vacuum in the lower bowl with automatic cut-off of heat supply

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Apparatus For Making Beverages (AREA)
  • Tea And Coffee (AREA)

Description

i DK 176265 B1in DK 176265 B1

Opfindelsens områdeFIELD OF THE INVENTION

Opfindelsen angår et kaffetilberedningsapparat af den art, hvor vand i e n lukket beholder bringes i kog, hvorefter vandet gennem et stigrør trykkes over i en åben beholder, hvor det kogende vand udtrækker aromastoffer fra 5 den malede kaffe, hvorpå den tilberedte kaffedrik filtreres gennem et ved ud løbet fra den åbne beholder anbragt filter tilbage til den lukkede beholder.BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a coffee-making apparatus of the kind in which water in a sealed container is brought to the boil, whereupon the water is pressurized through a riser into an open container, where the boiling water extracts flavors of the ground coffee and the filter from the open container is placed back to the closed container.

Den kendte teknikThe prior art

Et sådant kaffetilberedningsapparat har været kendt siden 1958, hvor den to blev frembragt som en ny og forbedret måde til tilberedning af kaffe, idet der hermed sikredes en konstant, høj temperatur under udtrækningsfasen. Dele til denne kendte teknik er beskrevet i DK 90776 og DK 98310.Such a coffee-making apparatus has been known since 1958, when the two were produced as a new and improved way of making coffee, thereby ensuring a constant, high temperature during the extraction phase. Parts of this prior art are described in DK 90776 and DK 98310.

Efter afslutningen af overførslen skal den lukkede beholder nedkøles med henblik på ved hjælp af det deraf fremkomne undertryk at tilbageføre den is færdigtfremstillede kaffe gennem et filterarrangement, hvorved kaffegrumset vil blive tilbageholdt i den åbne beholder ved hjælp af et ikke nærmere angivet filter.At the end of the transfer, the closed container must be cooled in order to return, by means of the resulting negative pressure, the ice-finished coffee through a filter arrangement, whereby the coffee grounds will be retained in the open container by means of an unspecified filter.

Der knytter sig imidlertid en række ulemper til denne tilberedningsmetode, idet den er afhængig af en ekstern varmekilde og desuden ikke uden større 20 omkostninger lader sig automatisere med henblik på at iværksætte tilberedning af kaffe til en bestemt, forud fastsat tid, således som det er blevet almindeligt ved kaffetilberedningsapparater.However, there are a number of drawbacks to this method of cooking, since it depends on an external heat source and, moreover, can not be automated without a major cost in order to initiate the preparation of coffee at a predetermined, predetermined time, as has been the case. commonly used by coffee makers.

Fra EP 292 649 kendes et lignende apparat til tilberedning af te, hvor ap-paratet omfatter to beholdere dels til frisk vand dels til udtrækning af smags-25 stofferne i teen. De to beholdere er indbyrdes forbundne ved hjælp af et stig rør, som er anbragt forskydeligt med henblik på at tillade en variabel trækketid i udtrækningsbeholderen. I friskvandsbeholderen, som er udstyret med mindst ét varmelegeme, forbliver der i afhængighed af afstanden mellem stigrørets underkant og bunden af friskvandsbeholderen en varierende mængde vand, 3o hvis fordampningstid bestemmer trækketiden for teen. De kendetegnende sær præg ved den der angivne opfindelse er, at stigrøret er forskydeligt anbragt, og at restmængden af vand bestemmes af stigrørets position samt at stigrøret i øvrigt på kendt måde fungerer som både stigrør og som udstrømningsindretning. Disse kendte særpræg er imidlertid frembragt med det formål at brugeren 35 skulle være i stand til at indstille trækketiden for teen. Med henblik på at kun ne gennemføre indstilingen af den resterende vanfmængde er bunden af 2 DK 176265 B1 friskvandsbeholderen opdelt i to niveauer. Trækketiden for te kan udmærket variere fra 5 minutter for en Assam eller Ceylon te, medens Kemun te er karakteristisk ved sin lange trækketid på 15 minutter som følge af sit lave indhold af garvesyre. Sådanne behov er ikke til stede ved den foreliggende opfindelse, 5 hvor kaffe skal tilberedes på en i og for sig kendt måde, som ved hjælp af opfindelsesgenstanden kan leve op til forbrugernes forventninger.EP 292 649 discloses a similar apparatus for the preparation of tea, wherein the apparatus comprises two containers partly for fresh water and partly for extracting the flavors of tea. The two containers are interconnected by means of a ladder tube which is slidably disposed to allow a variable draw time in the extraction container. In the fresh water container, which is equipped with at least one heater, a varying amount of water remains, depending on the distance between the bottom of the riser and the bottom of the fresh water container, whose evaporation time determines the withdrawal time for the tea. The distinguishing features of the present invention are that the riser is slidably disposed and that the residual amount of water is determined by the position of the riser and that the riser otherwise functions in both known ways as both riser and as an outflow device. However, these known features are created with the aim that the user 35 should be able to set the pulling time for the tea. In order to only carry out the adjustment of the remaining amount of water, the bottom of the freshwater tank is divided into two levels. The withdrawal time for tea can vary greatly from 5 minutes for an Assam or Ceylon tea, while Kemun tea is characterized by its long withdrawal time of 15 minutes due to its low tannic acid content. Such needs are not present in the present invention, where coffee is to be prepared in a manner known per se, which, by means of the inventive article, can live up to consumer expectations.

Det er endvidere kendt, at frembringe kaffe, hvor vand opvarmes med en i apparatet indbygget varmekilde, hvorefter det gennem et stigrør føres til e n position, hvorfra vandet kan dryppe ned i den malede kaffe, hvorefter den til -io beredte kaffedrik filtreres gennem en filtertragt. Denne metode benævnes ofte ”Melitta”®-metoden. Ulemperne ved denne metode er, at der ikke altid kan sikres en konstant, høj temperatur af det neddryppende vand, og at vandet som følge af neddrypningen kun fordeles over et meget lille areal, hvorfor aroma-stofferne i den malede kaffe ikke udnyttes fuldt ud, idet fordelingen af nedis dryppende vand med den rette temperatur er meget uensartet.Furthermore, it is known to produce coffee in which water is heated with a heat source built into the apparatus, after which it is passed through a riser to a position from which the water can drip into the ground coffee, after which the added coffee drink is filtered through a filter funnel . This method is often referred to as the "Melitta" ® method. The disadvantages of this method are that it is not always possible to ensure a constant, high temperature of the dripping water and that the water, as a result of the dripping, is only distributed over a very small area, so that the aroma substances in the ground coffee are not fully utilized, the distribution of downdrips drip water with the right temperature is very uneven.

Opfindelsens opgaveThe task of the invention

Til grund for den foreliggende opfindelse ligger derfor den opgave at tilvejebringe et kaffetilberedningsapparat, hvor aromastofferne i den malede 20 kaffe udnyttes bedst muligt under en nøje temperaturkontrol, hvor eksterne varmekilder kan undværes, og hvor muligheden for på forhånd at fastsætte et bestemt igangsætningstidspunkt og senere bestemme et temperaturforløb er til stede.Therefore, the object of the present invention is to provide a coffee-making apparatus in which the flavorings of the ground coffee are best utilized under close control of temperature, where external heat sources can be avoided and where the possibility of setting a specific start time and subsequently determining a temperature gradient is present.

Denne opgave løses ifølge opfindelsen ved hjælp af et kaffetilberednings-25 apparat af den indledningsvis nævnte art, hvor den lukkede beholder er udstyret med mindst ét varmelegeme, som tilsammen og/eller enkeltvis har en passende effekt til at bringe vand i den lukkede beholder i kog, og at varmelegemekomplekset styres i afhængighed af tid og temperatur ved hjælp af passende styreorganer og har mindst to effektomsætningstrin, med henblik på at fast-30 holde temperaturen af kaffedrikken inden for et snævert temperaturinterval under kaffedrikkens kogepunkt.This task is solved according to the invention by means of a coffee-making apparatus of the kind mentioned above, wherein the closed container is equipped with at least one heater which together and / or individually has a suitable effect for boiling water in the closed container. and that the heater complex is controlled in dependence on time and temperature by appropriate control means and has at least two power conversion stages, in order to maintain the temperature of the coffee beverage within a narrow temperature range below the boiling point of the coffee beverage.

En fremgangsmåde til tilberedning af en kaffedrik ved hjælp af kaffetil-beredningsapparatet omfatter indledningsvis følgende kendte trin a - f: 35 a) Påfyldning af vand i den beholder, som er udstyret med varmelegemekomplekset; b) Påsætning af den åbne beholder med filter; 3 DK 176265 B1 c) Påfyldning af malede kaffebønner; d) Iværksættelse af opvarmning af det påfyldte vand til kogning, hvor vandet inden kogningen som følge af varmedilatation og stigende damp tryk fortrænges gennem stigrøret til den åbne beholder; 5 e) Kogning af vandet i en passende tid, hvorved vanddampe fra kogningen trænger gennem stigrøret til den åbne beholder, hvor indholdet opvarmes til kogepunkttemperaturen; f) Afbrydelse af kogning, hvorved den lukkede beholder afkøles og oparbejder et undertryk, som suger den tilberedte kaffedrik tilbage til den lukke- io de beholder; og fremgangsmåden adskiller sig fra den kendte teknik ved, at g) Det til den lukkede beholder hørende varmelegemekompleks ved afbrydelsen af kogningen omkobles til et effekttrin med en udgangseffekt, som e r mindre end den til kogningens opretholdelse nødvendige effekt, hvorun- i5 der der gøres brug af de i afbryderkomplekset indeholdte organer til tids- styring og temperaturregulering, og ved afslutningen af filtreringen h) omkobles til et effekttrin, som opretholder en optimal temperatur for den færdige kaffedrik.A process for preparing a coffee drink by means of the coffee preparation apparatus initially comprises the following known steps a - f: a) Filling of water in the container equipped with the heater complex; b) Attaching the open container with filter; 3 DK 176265 B1 (c) filling of ground coffee beans; d) Initiating heating of the boiled water for boiling, where the water, before boiling due to heat dilatation and rising vapor pressure, is displaced through the riser to the open container; E) Boiling the water at a suitable time, whereby steaming vapors from the boiling penetrate through the riser to the open vessel, where the contents are heated to the boiling point temperature; f) Interrupting boiling, whereby the closed container is cooled and reprocessed, which sucks the prepared coffee drink back to the closed io container; and the method differs from the prior art in that g) the heater complex of the closed container at the interruption of boiling is switched to a power stage having an output power less than the power needed to maintain the boiling, which is used. of the means contained in the switchgear complex for timing control and temperature control, and at the end of filtration h) is switched to a power stage which maintains an optimum temperature for the finished coffee beverage.

20 Med fremgangsmåden ifølge opfindelsen kan afkølingsperiodens varig hed bestemmes, således at indholdet i den åbne beholder kan udtrække aro mastoffer i det efter brugerens smag fastsatte tidsrum, som ligger inden for et i n -terval mellem sekunder og 2-3 minutter.With the method of the invention, the duration of the cooling period can be determined so that the contents of the open container can extract aro mast substances for the period determined by the user's taste, which lies within a n interval between seconds and 2-3 minutes.

I det tilfælde, at den lukkede beholder kun er udstyret med ét varmelege- 25 me, kan en tidsmæssig udstrækning af afkølingsperioden tilvejebringes ved, at varmelegemet tilføres energi pulserende, hvor middelværdien svarer til et lavere effekttrin.In the case that the closed container is equipped with only one heating element, a temporal extension of the cooling period can be provided by supplying energy to the heater with pulsing energy which corresponds to a lower power step.

I en hensigtsmæssigt udformning foreslås det, at varmelegemet forsynes med elektrisk energi, hvorved der tilvejebringes optimale muligheder for e n jo effektiv styring af processen. Dette kan ske ved en tidsstyret igangsætning af processen samt en elektrisk styring af nedkølingsfasen, trin g), samt den afsluttende fase, trin h), hvor den færdige kaffedrik holdes optimalt varm.In a suitable embodiment, it is proposed that the heater be provided with electrical energy, thus providing optimal opportunities for effective control of the process. This can be achieved by a time-controlled initiation of the process as well as an electrical control of the cooling phase, step g), as well as the final phase, step h), where the finished coffee drink is kept optimally warm.

En anden energiforsyning er mulig ved at varmelegemet er en katalysatorbærer, over hvilken der ledes en brændbar gas, fx. en gængs gas til lightere.Another energy supply is possible in that the heater is a catalyst carrier over which a combustible gas is passed, e.g. a common gas for lighters.

35 En batteridrevet styring af gasventiler ved kogningen af vandet er her mulig på lokaliteter, hvor et elektrisk forsyningsnet ikke forefindes.35 Battery-operated control of gas valves when boiling the water is possible here at locations where an electrical supply network is not available.

4 DK 176265 B1 I endnu en hensigtsmæssig udformning af kaffetilberedningsapparatet er det udstyret med en sokkel, som kan rumme styringselektronikken, et afbryderkompleks og eventuelt et energiforråd i form af en gasbeholder/-patron eller en tilslutning til en elektrisk energiforsyning, s Yderligere hensigtsmæssige udformninger af opfindelsen fremgår af de afhængige krav.4 GB 176265 B1 In yet another suitable embodiment of the coffee-making apparatus, it is provided with a socket which can accommodate the control electronics, a switching complex and possibly an energy supply in the form of a gas container / cartridge or a connection to an electric energy supply, The invention is apparent from the dependent claims.

Et udførelseseksempel for opfindelsen er vist på tegningen. På tegningen viser: io fig. 1. en perspektivisk gengivelse af et kaffetilberedningsap parat ifølge opfindelsen, fig. 2. et aksialt snit gennem kaffetilberedningsapparatet ifølge opfindelsen, og fig. 3. en perspektivisk gengivelse som i fig. 1, men med ud-iϊ svingsarmen vist i den udsvungne position.An embodiment of the invention is shown in the drawing. In the drawing: FIG. Fig. 1 is a perspective view of a coffee making apparatus prepared according to the invention; 2. an axial section through the coffee-making apparatus according to the invention, and fig. 3. a perspective view as in FIG. 1, but with the outward swing arm shown in the swung position.

På fig. 1 og 2 ses et kaffetilberedningsapparat, som drives ved elektricitet, og som er beskrevet i det følgende. Kaffetilberedningsapparatet ifølge udførelseseksemplet er udstyret med en lukket beholder 1, som står på en sokkel 2 med 20 ikke nærmere viste koblingsorganer til energiforsyningen. Under hanken 3 ses et vindue 4, gennem hvilket processen kan følges. Under vinduet er der anbragt en elektrisk afbryderarm 5, som styres dels manuelt, dels automatisk ved hjælp af tids- og/eller temperaturparametre. Den lukkede beholder 1 er lukket ved hjælp af en prop 14, som omkranser et rør 12, som rækker ud fra den åbne 25 beholder 6 og gennem proppen 14, som sidder i en i den lukkede beholder 1 anbragt åbning 15. Denne åbning 15 kan, når den åbne beholder er fjernet fra kaffetilberedningsapparatet, yderligere lukkes ved hjælp af et låg 7. Ligeledes er den åbne beholder 1 udstyret med et låg 16, som hæmmer fordampningen af aromatiske stoffer fra den malede kaffe, som inden tilberedningen af kaffe-30 drikken fyldes i den åbne beholder 6. Det på fig. 1 ikke viste rør 12 rækker ned til bunden af den lukkede beholder 1 uden dog at røre bunden af denne.In FIG. 1 and 2, there is shown a coffee-making apparatus which is powered by electricity and which is described below. The coffee maker according to the exemplary embodiment is provided with a closed container 1, which stands on a base 2 with 20 switching means not shown in detail for the energy supply. Below the handle 3 is a window 4 through which the process can be followed. Underneath the window is an electric switch arm 5, which is controlled partly manually and partly by means of time and / or temperature parameters. The closed container 1 is closed by means of a plug 14 which surrounds a tube 12 extending from the open container 25 and through the plug 14, which sits in an opening 15. In this closed container 1, this opening 15 can be closed. when the open container is removed from the coffee maker, it is further closed by a lid 7. Likewise, the open container 1 is provided with a lid 16 which inhibits the evaporation of aromatic substances from the ground coffee as before the preparation of the coffee drink. is filled into the open container 6. The embodiment of FIG. 1, tube 12 not shown extends to the bottom of the closed container 1 without, however, touching the bottom thereof.

Bunden af den lukkede beholder (1) er i foretrukne udformninger plan af hensyn til en lettelse af rengøringen af den lukkede beholder. Der kan nemlig afhængigt af vandets hårdhedsgrad udfældes kalk på den del af den lukkede 35 beholder, som er i direkte kontakt med varmelegemet (10).Preferably, the bottom of the closed container (1) is planar for ease of cleaning of the closed container. Namely, depending on the hardness of the water, lime can be deposited on the part of the closed container which is in direct contact with the heater (10).

Under afbryderen 5 er der i det viste udførelseseksempel på en udbygning af soklen 2 anbragt et vindue 8, hvor forskellige parametre kan gengives elek- 5 DK 176265 B1 tronisk. Det kan være temperaturen af vandet i den lukkede beholder 1, det påfyldte volumen eller en tidsangivelse. Fig. 3 viser yderligere, at der på et andet sted på siden af soklen 2 er anbragt en udsvingelig udsvingsarm 9, som med e n opsvingelig holder 17 kan fastholde den åbne beholder 6 med dens stigrør 12 5 efter afslutningen af tilberedningen af den færdige kaffedrik. Dermed sikres den åbne beholder 6 mod væltning, og eventuelle rester i form af dråber fra stigrøret 12 kan opfanges i en dertil egnet, ikke nærmere vist bakke, som udgør en del af den udsvingelige udsvingsarm 9. Når udsvingsarmen ikke er i brug, kan den svinges ind i soklen 2. Til dette formål kan holderen 17 svinges ned i e n io udsparing 18 i udsvingsarmen 9.Below the switch 5, in the illustrated embodiment of an extension of the base 2, a window 8 is arranged where different parameters can be reproduced electronically. It may be the temperature of the water in the closed container 1, the volume filled or a time indication. FIG. 3 further shows that in another place on the side of the base 2 is a pivotal swing arm 9 which with one pivotable holder 17 can hold the open container 6 with its riser 12 5 after completion of the preparation of the finished coffee drink. Thus, the open container 6 is secured against overturning and any residues in the form of drops from the riser 12 can be trapped in a suitable, not shown tray forming part of the pivotal swing arm 9. When the swing arm is not in use, it can is pivoted into the base 2. For this purpose, the holder 17 can be pivoted down into a recess 18 in the pivoting arm 9.

På fig. 2 ses det, at der under bunden af den lukkede beholder 1 er anbragt et varmelegeme 10, hvis energiforsyning styres af det ikke nærmere viste afbryderkompleks 11, som i princippet kan være en vilkårlig type med hensyn til manuel eller automatisk virkende funktion. I forbindelse med den automatiske is funktion anvendes der ikke nærmere viste, termoelektriske følere, som registrerer kogning og assisterer ved afbrydning af energitilførslen, når kogning indtræffer.In FIG. 2, it is seen that below the bottom of the closed container 1 is arranged a heater 10, the energy supply of which is controlled by the switching complex 11 not shown, which can in principle be any type of manual or automatic operation. In connection with the automatic ice function, no more detailed thermoelectric sensors are used, which record boiling and assist in the interruption of the energy supply when boiling occurs.

Funktionen af kaffetilbedningsapparatet er følgende delvis kendte følge af fremgangsmådeskridt: 20 i. ' Vand fyldes i den lukkede beholder, inden den åbne beholder 6 anbringes i åbningen 15 som en prop.The function of the coffee brewing apparatus is the following partially known result of process steps: 20 in. Water is filled into the closed container before the open container 6 is placed in the opening 15 as a plug.

ii. Efter anbringelse af filteret 13 fyldes der malet kaffe i den åbne beholder 6 i en mængde svarende til mængden af det vand, som blev påfyldt den lukkede beholder 1.ii. After applying the filter 13, ground coffee is filled into the open container 6 in an amount corresponding to the amount of water which was filled into the closed container 1.

25 iii. Der tændes ved hjælp af afbryderen 5, hvorved vandet i den lukkede be holder 1 opvarmes. Under opvarmningen vil vandet, efterhånden som damptrykket stiger over vandet, blive løftet op i røret 12, som leder til den åbne beholder med filteret.Iii. It is turned on by means of the switch 5, whereby the water in the closed container 1 is heated. During heating, as the vapor pressure rises above the water, the water will be lifted into the pipe 12 which leads to the open container with the filter.

iv. Lige før kogningen indtræffer vil alt vandet være presset op i den åbne 3o beholder, og restmængden i den lukkede beholder bringes hurtigt i kog.iv. Just before boiling, all the water will be squeezed into the open 3o container and the residual quantity in the closed container will boil quickly.

v. Herved ledes der damp op gennem røret 12 gennem filteret 13 til blandingen af vand og malet kaffe.v. Hereby steam is passed through the pipe 12 through the filter 13 to the mixture of water and ground coffee.

vi. Når en passende mængde damp er ledt gennem røret 12, skal processen afbrydes, dvs. kogningen skal ophøre. Tidspunktet for standsning af kog- 35 ningen afhænger af mange parametre, heriblandt kaffesort og udtræksti den for de aromatiske stoffer i den malede kaffe, vandets kalkholdighed og 6 DK 176265 B1 indhold af andre stoffer. Til styring heraf gøres der brug af de i afbryder- komplekset 11 indeholdte organer til tidsstyring og temperaturregulering.we. When an appropriate amount of steam is passed through the pipe 12, the process must be interrupted, i.e. the cooking must cease. The timing of cessation of boiling depends on many parameters, including coffee variety and extraction path for the aromatics in the ground coffee, the water content of the water and the content of other substances. To control this, the means contained in the switching complex 11 are used for timing control and temperature control.

Til denne brug kan et tidsbestemt forsinkelsesled bringes i anvendelse, til sikring af en bestemt kogetid, under hvilken damp trænger op gennem stigrø-5 ret 12 og videre gennem filteret 13 og den derover stående blanding af væske og kaffegrums. Når dampen ledes gennem væsken, kondenserer den og den store mængde kondensationsvarmeenergi overgår fra dampen til den omsluttende væske, hvilket atter sikrer en stabil temperatur, som kun afhænger af barometertrykket. Ideen med en sådan opvarmning er, at indholdet i den åbne be-io holder 4 ikke kan blive varmere end den opstigende damp, da der ved temperaturlighed ikke sker nogen kondensation i væsken. Dette er et af de karakteristika ved kolbekaffe, hvor temperaturkravet om minimum 96°C kan imødekommes homogent for hele indholdet af den åbne beholder 6. Herved vil temperaturen af indholdet asymptotisk nærme sig temperaturen af den opstigende damp fra is den lukkede beholder 1.For this use, a timed delay link can be used to ensure a specific boiling time during which steam penetrates through the riser 12 and further through the filter 13 and the above mixture of liquid and coffee grounds. As the steam is passed through the liquid, it condenses and the large amount of condensation heat energy passes from the steam to the enclosing liquid, which again ensures a stable temperature which depends only on the barometric pressure. The idea of such heating is that the contents of the open container 4 cannot get hotter than the rising vapor, since at room temperature there is no condensation in the liquid. This is one of the characteristics of flask coffee where the temperature requirement of at least 96 ° C can be met homogeneously for the entire contents of the open container 6. Thus, the temperature of the contents will approach asymptotically the temperature of the rising vapor from ice the closed container 1.

Efter den forud fastsatte kogetid afbrydes opvarmningskredsløbets varmelegeme 10 eller det omkobles til en lavere effekt, således at nedkølingen af den lukkede beholder 1 kan finde sted i et styret tidsrum, hvorved aromatoffer-ne fra den malede kaffe får tid til at blive ekstraheret. Under nedkølingen op-20 arbejdes der et undertryk i den lukkede beholder 1, hvorved indholdet af den åbne beholder 6 suges ned i den lukkede beholder 1. Disse principper hører i og for sig til den kendte teknik, men de repeteres her for en god ordens skyld.After the predetermined cooking time, the heater 10 of the heating circuit is switched off or switched to a lower power so that the cooling of the closed container 1 can take place for a controlled period of time, thereby allowing the aromatics from the ground coffee to be extracted. During cooling, a negative pressure is worked up in the closed container 1, whereby the contents of the open container 6 are sucked into the closed container 1. These principles are inherently known in the prior art, but they are repeated here for good order. fault.

Efter tilendebragt proces, dvs. når den tilberedte kaffe er tilbage i den lukkede beholder 1, fjernes den åbne beholder 6 med filter, der anbringes i 25 holderen 17 på udsvingsarmen 9, som er drejet ud fra soklen 2 under den lukkede beholder 1, og låget 7 svinges ned over indholdet i den lukkede beholder 1. Herefter er kaffedrikken klar til servering og indtagelse. Med henblik på at holde kaffedrikken på en optimal temperatur, kan varmelegemet 10 på i og for sig kendt måde kobles til et effektniveau, hvor kaffedrikken holdes inden for et 3o snævert temperaturinterval under kogepunktet for kaffedrikken.After completed process, ie. when the prepared coffee is left in the closed container 1, the open container 6 is removed with filter which is placed in the holder 17 on the swing arm 9, which is turned out from the base 2 under the closed container 1, and the lid 7 is swung down over the contents. in the closed container 1. Then the coffee drink is ready for serving and intake. In order to keep the coffee drink at an optimum temperature, the heater 10 can be coupled in a manner known per se to a power level, where the coffee drink is kept within a narrow range of temperatures below the boiling point of the coffee drink.

Igangsætning af tilberedningen kan ved en elektrisk opvarmning styres elektrisk med tidsforsinkelse, således at vand og malet kaffe kan påfyldes den lukkede beholder 1 hhv. den åbne beholder 6, hvorved der på et vilkårligt tidspunkt kan tilberedes kaffe uden direkte menneskelig indgriben.Initiation of the preparation can be controlled electrically with time delay, so that water and ground coffee can be filled with the closed container 1 and 1, respectively. the open container 6, whereby coffee can be prepared at any time without direct human intervention.

35 En lignende automatisk start af opvarmningen kan tilvejebringes ved gas/katalysatoropvarmning, idet styringen vil kunne finde sted på basis af et elektrisk batteri.35 A similar automatic start of heating can be provided by gas / catalyst heating, the control being able to take place on the basis of an electric battery.

7 DK 176265 B17 DK 176265 B1

En sådan automatisering har ikke tidligere været mulig ved tilberedning af ’’kolbekaffe”, hvor tilberedningen hidtil har været afhængig af eksterne varmekilder i form af fx. en spritflamme eller en kogeplade.Such automation has not previously been possible in the preparation of '' flask coffee '', where the preparation has so far depended on external heat sources in the form of e.g. an alcohol flame or a hob.

Den viste udformning er kun anført som et eksempel, men er ikke be-5 grænset til det på tegningen viste. Også for en fagmand indlysende ændringer og varianter er omfattet af opfindelsen.The embodiment shown is given by way of example only, but is not limited to that shown in the drawing. Also obvious to a person skilled in the art are changes and variants within the scope of the invention.

Claims (12)

1. Kaffetilberedningsapparat af den art, hvor vand i en lukket beholder (1) bringes i kog, hvorefter vandet gennem et stigror (12) trykkes over i en åben beholder (6), hvor 5 det kogende vand udtrækker aromastoffer fra den malede kaffe, hvorpå den tilberedte kaffedrik filtreres gennem et ved udløbet fra den åbne beholder anbragt filter tilbage til den lukkede beholder (1), hvor den lukkede beholder (1) er udstyret med mindst ét varmelegeme (10), som tilsammen og/eller enkeltvis har en passende effekt til at bringe vand i den lukkede beholder (1) i kog, og at varmelegemekomplekset styres i af-10 hængighed af tid og temperatur, kendetegnet ved, at varmelegemet danner en plan overflade som udgør en del af bunden i den lukkede beholder, at stigroret er anordnet i en ikke-vertikal excentrisk position, hvor en nedre åbning er rettet mod en ikke-ophedet del af bunden i den lukkede beholder, og at varmelegemet har passende styreorganer og har mindst to effektomsætningstrin, med henblik på at fastholde temperaturen af 15 kaffedrikken inden for et snævert temperaturinterval under kaffedrikkens kogepunkt.A coffee-making apparatus of the kind in which water in a closed container (1) is brought to a boil, after which the water is pressurized through a stirrer (12) into an open container (6), where the boiling water extracts flavors from the ground coffee, the prepared coffee beverage is filtered through a filter disposed at the outlet of the open container to the closed container (1), the closed container (1) being provided with at least one heating element (10) which together and / or individually has a suitable effect of boiling water in the closed container (1), and that the heater complex is controlled depending on time and temperature, characterized in that the heater forms a flat surface which forms part of the bottom of the closed container, that the riser is arranged in a non-vertical eccentric position where a lower opening is directed to a non-heated part of the bottom of the closed container, and that the heater has appropriate control means and has at least two power conversion steps, not to maintain the temperature of the 15 coffee drink within a narrow temperature range below the boiling point of the coffee drink. 2. Kaffetilberedningsapparat ifølge krav 1, kendetegnet ved, at varmelegemet (10) tilføres elektrisk energi.Coffee-making apparatus according to claim 1, characterized in that the heater (10) is supplied with electrical energy. 3. Kaffetilberedningsapparat ifølge krav 1 og 2, kendetegnet ved, at den er udsty ret med en tids- og temperaturstyring, som styres ved hjælp af den tilførte elektriske energi.Coffee maker according to claims 1 and 2, characterized in that it is equipped with a time and temperature control which is controlled by the electrical energy supplied. 4, Kaffetilberedningsapparat ifølge krav 1, kendetegnet ved, at varmelegemet (10) 25 er udformet som en katalysatorbærer, som tilføres kemisk energi.4, Coffee-making apparatus according to claim 1, characterized in that the heater (10) 25 is designed as a catalyst carrier which is supplied with chemical energy. 5. Kaffetilberedningsapparat ifølge krav 1 og 4, kendetegnet ved, at den er udstyret med en tids- og temperaturstyring, som styres ved hjælp af et elektrisk energilager.Coffee-making apparatus according to claims 1 and 4, characterized in that it is equipped with a time and temperature control which is controlled by means of an electrical energy store. 6. Kaffetilberedningsapparat ifølge krav 5, kendetegnet ved, at det elektriske ener gilager er en elektrisk akkumulator.Coffee-making apparatus according to claim 5, characterized in that the electrical energy storage is an electric accumulator. 7. Kaffetilberedningsapparat ifølge ethvert af de foregående krav, kendetegnet ved, at det er udstyret med en sokkel (2), som rummer styringselektronikken, et afbryder DK 176265 B1 2 kompleks (11) og eventuelt et energiforråd i form af en gasbeholder/-patron eller en tilslutning til en elektrisk energiforsyning.Coffee maker according to any one of the preceding claims, characterized in that it is provided with a base (2) which holds the control electronics, a switch (DK) 176265 B1 2 complex and, optionally, an energy supply in the form of a gas container / cartridge. or a connection to an electric power supply. 8. Kaffetilberedningsapparat ifølge ethvert af de foregående krav, kendetegnet ved, 5 at soklen (2) yderligere er udstyret med en udsvingsarm (9), som er udstyret med en opsvingelig holder (17) med henblik på at fastholde den åbne beholder (6) ved hjælp af dens stigrør (12) efter afslutningen arf tilberedningen af den færdige kaffedrik.Coffee maker according to any one of the preceding claims, characterized in that the socket (2) is further equipped with a swinging arm (9) which is equipped with a swivel holder (17) for holding the open container (6). using its riser (12) after finishing the preparation of the finished coffee beverage. 9. Kaffetilberedningsapparat ifølge krav 8, kendetegnet ved, at holderen (17) kan 10 svinges ned i en udsparing (18) i udsvingsarmen (9).Coffee-making apparatus according to claim 8, characterized in that the holder (17) can be pivoted down into a recess (18) in the swinging arm (9). 10. Fremgangsmåde til tilberedning af en kaffedrik ved hjælp af kaffetilberedningsap- paratet omfatter følgende kendte trin a - f: 15 a) Påfyldning af vand i den beholder, som er udstyret med varmelegemekomplekset; b) Påsætning af den åbne beholder med filter; c) Påfyldning af malede kaffebønner; d) Iværksættelse af opvarmning af det påfyldte vand til kogning, hvor vandet inden kogningen som følge af varmedilatation og stigende damptryk fortrænges gen- 20 nem stigroret til den åbne beholder; e) Kogning af vandet i en passende tid, hvorved vanddampe fra kogningen trænger gennem stigrøret til den åbne beholder, hvor indholdet opvarmes til kogepunkttemperaturen; f) Afbrydelse af kogning, hvorved den lukkede beholder afkøles og oparbejder et 25 undertryk, som suger den tilberedte kaffedrik tilbage til den lukkede beholder; Og som er kendetegnet ved, at g) Det til den lukkede beholder hørende varmelegemekompleks ved afbrydelsen af kogningen omkobles til et effekttrin med en udgangseffekt, som er væsentligt mindre end den til kogningens opretholdelse nødvendige effekt, hvorunder der 30 gøres brug af de i afbryderkomplekset (11) indeholdte organer til tidsstyring og temperaturregulering. h) Det lavere effekttrin omkobles efter tømning af den åbne beholder (6) med henblik på at fastholde temperaturen af kaffedrikken inden for et snævert temperaturinterval under kaffedrikkens kogepunkt. DK 176265 B1 3A process for preparing a coffee beverage by means of the coffee making apparatus comprises the following known steps a - f: 15 a) Filling water in the container equipped with the heater complex; b) Attaching the open container with filter; (c) filling of ground coffee beans; d) Initiating heating of the filled water for boiling, whereby the water before the boiling due to heat dilatation and rising vapor pressure is displaced by the stirrer to the open container; e) Boiling the water at an appropriate time, whereby steaming vapors from the boiling penetrate through the riser to the open vessel, where the contents are heated to the boiling point temperature; f) Interrupting boiling, whereby the closed container is cooled and reprocessed a vacuum which sucks the prepared coffee drink back into the closed container; And characterized in that g) the heater complex belonging to the closed container at the interruption of boiling is switched to a power stage having an output power which is substantially less than the power required for maintaining the boiler, during which the use of the switching complex is used ( 11) contained means for timing and temperature control. h) The lower power stage is switched after emptying the open container (6) in order to maintain the temperature of the coffee drink within a narrow temperature range below the boiling point of the coffee drink. DK 176265 B1 3 11. Fremgangsmåde ifølge krav 10, kendetegnet ved, at der under fremgangsmådeskridtene d) - h) tilføres elektrisk energi til organer (10, 11) til opvarmning og styring af kaffetilberedningen.Process according to Claim 10, characterized in that during the process steps d) - h) electrical energy is supplied to means (10, 11) for heating and controlling the coffee preparation. 12. Fremgangsmåde ifølge krav 10, kendetegnet ved, at der under fremgangsmåde- skridtene d) - h) tilføres kemisk energi til organer (10, 11) til opvarmning og styring af kaffetilberedningen, hvor organet (10) er en katalysatorbærer, og organerne (11) er med elektrisk, akkumuleret energi drevne kontrolorganer til styring af den kemiske energi. 10Process according to claim 10, characterized in that during the process steps d) - h), chemical energy is supplied to means (10, 11) for heating and controlling the coffee preparation, wherein the means (10) is a catalyst carrier and the means ( 11) are electric powered accumulated control means for controlling the chemical energy. 10
DK199900771A 1999-06-01 1999-06-01 Coffee maker and method for preparing a coffee beverage by means of the coffee maker DK176265B1 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
DK199900771A DK176265B1 (en) 1999-06-01 1999-06-01 Coffee maker and method for preparing a coffee beverage by means of the coffee maker
PCT/DK2000/000290 WO2000072736A1 (en) 1999-06-01 2000-05-30 Device for preparing coffee and method for preparing a coffee drink using said device
NZ515306A NZ515306A (en) 1999-06-01 2000-05-30 Device for preparing coffee and method for preparing a coffee drink using said device
CA002372941A CA2372941A1 (en) 1999-06-01 2000-05-30 Device for preparing coffee and method for preparing a coffee drink using said device
CNB008082642A CN1209064C (en) 1999-06-01 2000-05-30 Device for preparing coffee and method for preparing coffee drink using said device
JP2000620854A JP3834681B2 (en) 1999-06-01 2000-05-30 Coffee adjustment device and coffee beverage adjustment method using the device
EP00938576A EP1187546A1 (en) 1999-06-01 2000-05-30 Device for preparing coffee and method for preparing a coffee drink using said device
AU53903/00A AU772899B2 (en) 1999-06-01 2000-05-30 Device for preparing coffee and method for preparing a coffee drink using said device
TW089110546A TW487561B (en) 1999-06-01 2000-05-31 Device for preparing coffee and method for preparing a coffee drink using said device
NO20015457A NO320811B1 (en) 1999-06-01 2001-11-08 Device for making coffee and method for making a coffee drink using the device
HK02106617.8A HK1045243A1 (en) 1999-06-01 2002-09-09 Device for preparing coffee and method for preparing a coffee drink using said device

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DK77199 1999-06-01
DK199900771A DK176265B1 (en) 1999-06-01 1999-06-01 Coffee maker and method for preparing a coffee beverage by means of the coffee maker

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DK176265B1 true DK176265B1 (en) 2007-05-14

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DK (1) DK176265B1 (en)
HK (1) HK1045243A1 (en)
NO (1) NO320811B1 (en)
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JP4169711B2 (en) * 2004-03-03 2008-10-22 三洋電機株式会社 Beverage production equipment
DE202006016221U1 (en) * 2006-10-19 2008-03-13 Wik Far East Ltd. Water cooker
DE102010040921A1 (en) 2010-09-16 2012-03-22 Basf Se Process for the preparation of acrylic acid from methanol and acetic acid
JP5657332B2 (en) 2010-10-08 2015-01-21 株式会社マキタ Electrical equipment
WO2014197480A2 (en) 2013-06-03 2014-12-11 Starbucks Corporation D/B/A Starbucks Coffee Company Apparatus and method for brewing a beverage
CN103735165B (en) * 2014-01-24 2016-06-22 苏州顺和丰家电科技有限公司 Switch type filter
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DE3909626A1 (en) * 1989-03-23 1990-10-04 Darboven J J Method for making a coffee drink and device suitable therefor
FR2708184B1 (en) * 1993-06-30 1996-02-02 Moulinex Sa Infusion machine.
DE4441226A1 (en) * 1994-11-19 1996-05-23 Joachim Bremer Portable espresso coffee-making machine
US5892204A (en) * 1997-03-17 1999-04-06 Chiaphua Industries Limited Vacuum coffee maker
DE19833911A1 (en) * 1998-07-28 1999-03-11 Stoeckhert Heinz Coffee pot with integrated hot water treatment

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HK1045243A1 (en) 2002-11-22
CN1209064C (en) 2005-07-06
NO20015457L (en) 2001-12-11
EP1187546A1 (en) 2002-03-20
DK199900771A (en) 2000-12-02
CA2372941A1 (en) 2000-12-07
WO2000072736A1 (en) 2000-12-07
AU772899B2 (en) 2004-05-13
NO20015457D0 (en) 2001-11-08
TW487561B (en) 2002-05-21
NZ515306A (en) 2003-06-30
JP2003500144A (en) 2003-01-07
CN1353588A (en) 2002-06-12
AU5390300A (en) 2000-12-18
JP3834681B2 (en) 2006-10-18

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