DK9500170U4 - tea filter - Google Patents
tea filter Download PDFInfo
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- DK9500170U4 DK9500170U4 DK9500170U DK9500170U DK9500170U4 DK 9500170 U4 DK9500170 U4 DK 9500170U4 DK 9500170 U DK9500170 U DK 9500170U DK 9500170 U DK9500170 U DK 9500170U DK 9500170 U4 DK9500170 U4 DK 9500170U4
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- DK
- Denmark
- Prior art keywords
- filter
- thermos
- filter unit
- gripping
- tea
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- 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
- A47J31/0636—Filters or strainers for coffee or tea makers ; Holders therefor suspended from the top of the beverage container so as to remain in contact with the prepared infusion
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Apparatus For Making Beverages (AREA)
Description
DK 95 00170 U4DK 95 00170 U4
Den foreliggende frembringelse vedrører en filterenhed til fremstilling af en ekstraktionsdrik såsom te eller lignende af f.eks. teblade eller lignende, hvilken filterenhed omfatter to dele, en rørformet filterdel, som afgrænser et inderrum til optagelse af en portion teblade til 5 fremstilling af ekstraktionsdrikken, og en gribe- eller holdedel, hvilken rørformede filterdel har en ydervægsdel, som er perforeret for at tillade, at der kan diffundere vand gennem denne perforerede ydervægsdel fra filterdelens inderrum og ud eller modsat, og hvilken rørformede filterdel afgrænser modstående ender, en første lukket ende 10 og en anden åben ende, ved hvilken gribe- eller holdedelen er forbundet til filterdelen, idet gribe- eller holdedelen har en fra filterdelens ydervæg udefter ragende gribeflange.The present invention relates to a filter unit for producing an extraction beverage such as tea or the like of e.g. tea leaves or the like, the filter unit comprising two parts, a tubular filter portion defining an inner compartment for receiving a portion of tea leaves for producing the extraction drink, and a gripping or holding portion having a tubular filter portion perforated to allow that water may diffuse through this perforated outer wall portion from the inner portion of the filter portion and out or opposite, and which tubular filter portion delimits opposite ends, a first closed end 10 and a second open end at which the gripping or holding portion is connected to the filter portion, gripping - or the holding member has a gripping flange projecting from the outer wall of the filter part.
Der kendes talrige filterenheder eller filterkonstruktioner af såvel 15 éngangstypen som genbrugstypen, der er beregnet til fremstilling af te, idet filterenheden fyldes helt eller fortrinsvis delvist med teblade, hvorefter filterenheden monteres hængende eller strækkende sig ned i en tekandes indre fra tekandens åbning. Fremstillingen af ekstraktionsdrikken eller teen foretages efterfølgende ved at hælde kogende vand ned 20 over filterenheden, hvorefter filterenheden med indhold af teblade får lov til at forblive hvilende i tekandens indre, indtil teen har trukket et vist tidsrum, som bestemmes individuelt af brugeren til frembringelse af en mere eller mindre stærk ekstraktionsdrik eller te. Fra patentlitteraturen kendes en række filterkonstruktioner beregnet til brug i 25 tekander. Således skal der henvises til dansk patent nr. 54.652, dansk patent nr. 99.827, tysk offentliggørelsesskrift nr. 43 01 157, tysk offentliggørelsesskrift nr. 19 62 378 og britisk patent nr. 437.694. Fælles for disse kendte filterkonstruktioner, der alle er af den type, som kan benyttes flere gange, d.v.s. kan benyttes efter at filterenheden ef-30 ter brug tømmes for brugte teblade og derefter skylles, er det forhold, at filterenheden kun kan benyttes i forbindelse med tekander af en vis forholdsvis stor størrelse og specielt ikke kan benyttes i forbindelse med eksempelvis termokander. Det har således hidtil været nødvendigt for tedrikkere, der ønskede at opbevare teen i en termokande for dermed at 35 holde teen varm, først af fremstille teen i en tekande og efterfølgende skænke teen fra tekanden over i termokanden.Numerous filter units or filter constructions of both the disposable and the recycled type intended for the preparation of tea are known, the filter unit being completely or preferably partially filled with tea leaves, after which the filter unit is mounted hanging or extending into the interior of a teapot from the teapot opening. The preparation of the extraction drink or tea is then done by pouring boiling water 20 over the filter unit, after which the tea leaf filter unit is allowed to remain dormant in the interior of the teapot until the tea has drawn a certain amount of time individually determined by the user to produce a more or less strong extraction drink or tea. A number of filter constructions intended for use in 25 teapots are known from the patent literature. Thus, reference should be made to Danish Patent No. 54,652, Danish Patent No. 99,827, German Patent Publication No. 43 01 157, German Patent Publication No. 19 62 378 and British Patent No. 437,694. Common to these known filter constructions, all of which can be used several times, i.e. can be used after the filter unit is emptied after use for used tea leaves and then rinsed, the fact is that the filter unit can only be used in connection with teapots of a certain relatively large size and in particular cannot be used in connection with, for example, thermal jugs. Thus, it has so far been necessary for tea drinkers who wanted to store the tea in a thermos to keep the tea warm, first by making the tea in a teapot and then pouring the tea from the teapot into the thermos.
Det skal bemærkes, at der også kendes talrige éngangsfilterkonstruktio- 2 DK 95 00170 U4 ner, specielt tefilterposer fremstillet af papir, som enten benyttes alene eller i forbindelse med en holder, men som heller ikke umiddelbart kan benyttes i en termokande.It should be noted that numerous disposable filter designs are also known, especially tea filter bags made of paper, which are either used alone or in conjunction with a holder, but cannot be used immediately in a thermos jug.
Specielt fra britisk patent nr. 626.914 kendes en filterenhed af den indledningsvis angivne art. Denne kendte fiilterenhed er udformet på en sådan måde, at gribe- eller holdedelen udgør en lågkomponent til en tepotte, i forbindelse med hvilken filterenheden skal benyttes. Den kendte filterenhed benyttes således på en lidt speciel måde ved, at filterdelen, som udgør en perforeret cylinderdel med en lukket bunddel, fyldes med teblade, hvorefter der skænkes kogende vand ned i tepottens indre. Filterdelen monteres herefter i en indvendig krave i tepottens lågkomponent, som udgør gribe- eller holdeleden, hvorefter lågkomponenten med påmonteret filterdel monteres på tepotten således, at filterdelen helt eller delvist nedsænkes i det kogende vand. Efterfølgende kan filterdelen fjernes fra lågkomponenten, efter at lågkomponenten er fjernet fra tepotten, men denne operation må nødvendigvis forudsætte brug af grydelapper eller andre termisk isolerende mellemlæg for at forhindre, at personen, som fjerner filterdelen fra lågkpmponenten, brænder sig på filterdelen. Denne kendte konstruktion er Således ikke hensigtsmæssig i brug og har følgelig heller ikke vundet speciel stor kommerciel udbredelse, hverken i forbindelse med tepotter eller andre beholdere, herunder isolerede kander såsom termokander.Particularly from British Patent No. 626,914, a filter unit of the type mentioned initially is known. This known filter unit is designed in such a way that the gripping or holding part constitutes a lid component for a tea pot, in connection with which the filter unit is to be used. The known filter unit is thus used in a somewhat special way in that the filter part, which forms a perforated cylinder part with a closed bottom part, is filled with tea leaves, after which boiling water is poured into the interior of the teapot. The filter part is then mounted in an inner collar of the teapot lid component, which constitutes the gripping or holding member, after which the lid component with fitted filter part is mounted on the teapot so that the filter part is fully or partially immersed in the boiling water. Subsequently, the filter part can be removed from the lid component after the lid component is removed from the teapot, but this operation must necessarily require the use of pots or other thermally insulating shims to prevent the person removing the filter part from the lid component from burning on the filter part. Thus, this known construction is not suitable for use and consequently has not gained particularly great commercial spread, either in connection with teapots or other containers, including insulated jugs such as thermos jugs.
Et formål med den foreliggende opfindelse ér at tilvejebringe en filterenhed til fremstilling af en ekstraktionsdrik såsom te eller lignende, hvilken filterenhed gør det muligt at fremstille ekstraktionsdrikken eller teen direkte i en termokande, d.v.s. alt tilvejebringe eri filterenhed, som kan benyttes i forbindelse med en termokande, og muliggør, at ifyldningen af teblade og iskænkningen af fortrinsvis kogende vand i filterenhedens indre skal lettes og kan foretages, mens filterenheden er indsat i termokanden, og at filterenheden bekvemt kan fjernes fra termokanden, efter at teen er brygget i termokanden.An object of the present invention is to provide a filter unit for producing an extraction beverage such as tea or the like, which filter unit enables the extraction drink or tea to be prepared directly in a thermos, i.e. everything provides a filter unit which can be used in conjunction with a thermos and allows the filling of tea leaves and the icing of preferably boiling water into the interior of the filter unit to be facilitated and can be done while the filter unit is inserted into the thermos and the filter unit can be conveniently removed from the the thermos after the tea is brewed in the thermos.
De ovenfor angivne formål sammen med talrige andre formål, fordele og fordelagtige træk, der vil fremgå af den efterfølgende detaljerede beskrivelse af fordelagtige udførelsesformer for filterenheden ifølge frembringelsen, opnås i overensstemmelse med frembringelsens lære med en 3 DK 95 00170 U4 filterenhed af den ovenfor angivne art, hvilken filterenhed er ejendommelig ved, at gribe- eller holdedelen har en skrå inderflade, som danner en tragtformet indføringsåbning til filterdelens inderrum og er indrettet til fastholdelse af filterenheden i en åbning i en termokande eller lignende beholder på en sådan måde, at filterenheden monteres med filterdelen strækkende sig ned i termokandens indre, at den rørformede filterdel definerer en samlet ydre længde og en største ydre diameter, idet forholdet mellem den rørformede filterdels samlede ydre længde og største ydre diameter er større end 1,5, såsom 1,5 - 5, f.eks. 2 - 3, 3 - 4 eller 4 - 5, fortrinsvis 3 - 5, f.eks. 4 - 4,5, og at den rørformede filterdels største ydre diameter er mindre end 50 mm, såsom 20-50 mm, f.eks. 20-30 mm, 30-40 mm eller 40-50 mm, fortrinsvis 30-50 mm, f.eks. 30-35 mm.The above stated objects, together with numerous other objects, advantages and advantageous features which will become apparent from the following detailed description of advantageous embodiments of the filter unit according to the invention, are achieved in accordance with the teachings of the production with a filter unit of the above-mentioned type. which filter unit is characterized in that the gripping or holding part has an inclined inner surface which forms a funnel-shaped entry opening to the inner part of the filter part and is arranged for holding the filter unit in an opening in a thermos or similar container in such a way that the filter unit is mounted with the filter portion extending into the interior of the thermos pitcher that the tubular filter portion defines an overall outer length and a maximum outer diameter, the ratio of the total outer length and largest outer diameter of the tubular filter portion being greater than 1.5 such as 1.5-5; for example. 2 - 3, 3 - 4 or 4 - 5, preferably 3 - 5, e.g. 4 to 4.5, and that the largest outer diameter of the tubular filter part is less than 50 mm, such as 20-50 mm, e.g. 20-30 mm, 30-40 mm or 40-50 mm, preferably 30-50 mm, e.g. 30-35 mm.
Gribe- eller holdedelen tjener to formål, for det første at muliggøre håndtering af filterenheden, og for det andet at holde filterenheden under brug i den tiltænkte placering med filterdelen strækkende sig ned i termokandens indre, idet gribe- eller holdedelen således tjener til at fastholde filterenheden enten i spænd eller som en flange i forhold til termokanden ved termokandens øverste åbning.The gripping or holding portion serves two purposes, firstly, to enable handling of the filter unit, and secondly, to keep the filter unit in use in the intended location with the filter portion extending into the interior of the thermos, the gripping or holding portion thus serving to hold the filter unit either in tension or as a flange relative to the thermos at the top of the thermos.
Til grund for den foreliggende frembringelse ligger den erkendelse, at en filterenhed, der skal muliggøre fremstillingen af te eller anden ekstraktionsdrik i en termokande direkte, skal have en slank og smal udformning for at muliggøre, at filterenheden kan monteres strækkende sig ned i termokandens indre, idet termokander til forskel fra tekander of-tests har forholdsvis små åbninger, der er betinget af hensynet til etableringen af en stor termisk isolering mellem termokandens indre og omgivelserne. De fra ovennævnte skrifter kendte filterenheder har således alle en udformning, der umuliggør anvendelsen i forbindelse med termokander, ligesom de kendte éngangsfilterposer har ydre dimensioner, som umuliggør anvendelse direkte i forbindelse med en termokande til fremstilling af te.The basis of the present invention is the recognition that a filter unit which enables the production of tea or other extraction beverage in a thermos directly, must have a slim and narrow design to allow the filter unit to be mounted extending down the interior of the thermos. in contrast to teapots of tests, thermo jugs have relatively small openings which are contingent upon the consideration of establishing a large thermal insulation between the interior of the thermos jug and the surroundings. Thus, the filter units known from the aforementioned writings all have a design which makes it impossible to use in connection with thermos, and the known disposable filter bags have external dimensions which make them impossible to use directly in connection with a thermos for making tea.
I overensstemmelse med frembringelsens lære udgør filterenheden en konstruktion, der omfatter to dele, en gribe- eller holdedel og en filterdel, der imidlertid kan udgøre to separate enheder eller i specielle udformninger udgøre en integreret konstruktion, der yderligere geometrisk 4 DK 95 00170 U4 kan være udformet således, at gribe- eller holdedelen og den rørformede filterdel går i al væsentlighed ubrudt over i hinanden. Definitionen af gribe- eller holdedelen og den rørformede filterdel refererer således i denne sammenhæng primært til pågældende deles funktion, nærmere bestemt, 5 for gribe- eller holdedelens vedkommende, håndtering af filterenheden, og den rørformede filterdel frembringelsen af selve den filterenhed, som takket være den perforerede ydervægsdel muliggør fremstillingen af ekstraktionsdrikken. Det skal i denne forbindelse bemærkes, at den rørformede filterdel kan have en større eller mindre del af sin ydervæg ud-10 formet perforeret, idet den perforerede ydiarvægsdel kan udgøre en større eller mindre del af den rørformede filterdel, når blot det funktionelle krav, at den perforerede ydervægsdel tillader, at der kan diffundere vand gennem den perforerede ydervægs del fra filterdelens imderrum og ud eller modsat, er opfyldt.In accordance with the teachings of the invention, the filter unit constitutes a structure comprising two parts, a gripping or holding part and a filter part, which may, however, constitute two separate units or, in special designs, constitute an integrated structure which may further be geometrically 4 DK 95 00170 U4 designed so that the gripping or holding portion and the tubular filter portion are substantially unbroken. The definition of the gripping or holding member and the tubular filter member thus refers in this context primarily to the function of the particular member, more specifically, for the gripping or holding member, handling of the filter unit, and the tubular filter part producing the filter unit itself which, thanks to the perforated outer wall portion enables the preparation of the extraction beverage. In this connection, it should be noted that the tubular filter portion may have a larger or smaller portion of its outer wall shaped perforated, the perforated outer wall portion may constitute a larger or smaller portion of the tubular filter portion, provided that the functional requirement is that the perforated outer wall portion allows water to diffuse through the perforated outer wall portion from the bottom of the filter portion and out or opposite is satisfied.
15 I overensstemmelse med den i dag foretrukne udførelsesform for filterenheden ifølge frembringelsen er den rørformede filterdel udformet som en cirkulær cylindrisk filterdel, og den nævnte perforerede ydervægsdel udgør den cirkulært cylindriske ydervæg af filterdelen. Herved opnås en 20 såvel funktionel som æstetisk fordelagtig udformning, der på den ene side muliggør opfyldelsen af de til grund for den foreliggende frembringelse liggende krav til de geometriske relationer mellem den rørformede filterdels samlede yderlængde og den største yderdiameter, og på den anden side de funktionelle krav i henseende til fremstilling af en 25 ekstraktionsdrik af de i den rørformede filterdels inderrum indeholdte teblade.In accordance with the presently preferred embodiment of the filter unit according to the invention, the tubular filter part is formed as a circular cylindrical filter part and said perforated outer wall part constitutes the circular cylindrical outer wall of the filter part. Hereby a functional as well as aesthetically advantageous design is obtained which, on the one hand, enables the fulfillment of the requirements of the present invention to be fulfilled for the geometric relations between the total outer length of the tubular filter part and the largest outer diameter, and on the other hand the functional claims for making an extraction beverage of the tea leaves contained in the inner compartment of the tubular filter portion.
Filterenheden ifølge den foreliggende frembringelse kan alternativt være udformet konisk, d.v.s. den rørformede filterdel og eventuelt også 30 gribe- eller holdedelen kan være udformet konisk, idet den koniske filterdels mindste ydre diameter er defineret ved den nævnte første lukkede ende, og idet den største ydre diameter er defineret ved den anden åbne ende.Alternatively, the filter unit according to the present invention may be conical shaped, i.e. the tubular filter portion and optionally also the gripping or holding portion may be conical shaped, the smallest outer diameter of the conical filter portion being defined at said first closed end and the largest outer diameter being defined at the second open end.
35 Filterdelen i filterenheden ifølge den foreliggende frembringelse kan udgøre en integreret enhed eller være sammensat af flere delkomponenter. Filterdelens første lukkede ende kan således specielt være lukket med en integreret eller aftagelig, perforeret eller massiv endedel, idet fil- 5 DK 95 00170 U4 terdelen i det tilfælde, at den første lukkede ende er lukket med en integreret, perforeret eller massiv endedel, udgør en integreret endedel, medens filterdelen i det tilfælde, at den første lukkede ende er lukket med en aftagelig, perforeret eller massiv endedel, er sammensat af 5 mindst to komponenter. Den aftagelige endedel kan være sammenkobl elig med den resterende del af filterdelen ved hjælp af vilkårlige kendte koblingsorganer såsom hængsler, prespasninger, snaplåsninger eller gevind.The filter part of the filter unit according to the present invention may constitute an integrated unit or be composed of several sub-components. The first closed end of the filter part can thus be specially closed with an integrated or removable, perforated or solid end part, the filter part in the case that the first closed end is closed with an integrated, perforated or solid end part. an integral end part, while in the case that the first closed end is closed with a removable, perforated or solid end part, the filter part is composed of at least two components. The removable end portion may be interconnectable with the remaining portion of the filter portion by any known coupling means such as hinges, press fits, snap locks or threads.
10 Den omtalte endedel kan i overensstemmelse med alternative udførelsesformer for filterenheden ifølge den foreliggende frembringelse udgøre en skiveformet, plan endedel eller være udformet hvælvet, fortrinsvis kuppelformet, idet den hvælvede eller kuppelformede endedel kan være monteret hvælvende indefter eller fortrinsvis udefter i forhold til den rør-15 formede filterdels inderrum.The said end portion may, in accordance with alternative embodiments of the filter unit according to the present invention, constitute a disc-shaped, flat end portion or be formed of a vault, preferably domed, the vaulted or domed end portion may be mounted vaulted inwards or preferably outwardly relative to the tubular. 15 shaped filter part inner compartment.
Gribe- eller holdedelen kan i filterenheden ifølge den foreliggende frembringelse være udformet ud i et med den rørformede filterdel for dermed at opfylde såvel funktionelle som æstetiske krav eller alterna-20 tivt udgøre en separat komponent i forhold til den rørformede filterdel.In the filter unit of the present invention, the gripping or holding portion may be formed integrally with the tubular filter portion so as to meet both functional and aesthetic requirements or alternatively constitute a separate component with respect to the tubular filter portion.
Gribe- eller holdedelen tjener, således som det er forklaret ovenfor, bl.a. det formål at gøre det lettere for brugeren at montere filterenheden på termokanden eller den tilsvarende beholder, i hvilken eks-25 traktionsdrikken eller teen fremstilles, men samtidigt det formål at gøre det let for brugeren efter brug at fjerne filterenheden fra termokanden. For at forhindre, at gribe- eller holdeenheden er opvarmet til en for brugeren ubehagelig høj temperatur betinget af det kogende eller skoldhede vand, som er fyldt i termokanden gennem gribe- eller holde-30 delen og den rørformede filterdels inderrum, foretrækkes det, at gribe-eller holdedelen er fremstillet af termisk isolerende materiale, fortrinsvis plast, såsom højtemperaturbestandigt plast, eller i det mindste plast, som ikke deformeres eller blødgøres ved en temperatur på ca.The grab or hold portion serves, as explained above, i.a. the purpose of making it easier for the user to mount the filter unit on the thermos or the corresponding container in which the extraction drink or tea is made, but at the same time to make it easy for the user to remove the filter unit from the thermos after use. In order to prevent the gripping or holding unit from being heated to an uncomfortably high temperature conditional on the boiling or scalding water which is filled in the thermos pot through the gripping or holding member and the interior of the tubular filter part, it is preferred to grip -or the holding member is made of thermally insulating material, preferably plastic, such as high temperature resistant plastic, or at least plastics which do not deform or soften at a temperature of approx.
100°, d.v.s. vands kogepunkt.100 °, i.e. boiling point of water.
En række kendte termokander har en fra termokandens overside opefter ragende flange, der tjener til fastholdelse af et låg i forhold til termokandens legeme. For at sikre en korrekt og pålidelig positionering 35 6 DK 95 00170 U4 af filterenheden i forhold til en sådan termokande foretrækkes det, at gribe- eller holdedelen har en rundtgående flange, der strækker sig parallelt med den rørformede filterdel og er indrettet til at samvirke med den opefter ragende flange af termokanden eller lignende beholder 5 til fastholdelse af filterindretningen i forhold til termokanden.A number of known thermos jugs have a flange projecting upwardly from the top of the thermos, which serves to hold a lid relative to the thermos pitcher body. In order to ensure correct and reliable positioning of the filter unit with respect to such a thermos pitcher, it is preferred that the gripping or holding part has a circumferential flange extending parallel to the tubular filter part and arranged to cooperate with the filter unit. the upwardly extending flange of the thermos or similar container 5 for holding the filter device relative to the thermos.
I den i dag foretrukne udførelsesform for filterenheden ifølge den foreliggende frembringelse er den rørformede filterdel fremstillet af tyndt rustfri stål plade, og den nævnte perforerede ydervægsdel udgøres af en 10 perforeret del af den tynde rustfrie stål pijade, idet perforeringerne fortrinsvis har en maksimal åbningsdiameter på mindre end 1 mm, fortrinsvis en maksimal åbningsdiameter af størrelsen 0,5 - 1 mm, såsom 0,7 mm, for dermed at sikre, at tebladene holdes tilbage i dette inderrum og ikke skylles igennem perforeringerne og ind i termokandens indre, hvi1 -15 ket kunne ske, dersom perforeringerne havde for stor diameter.In the presently preferred embodiment of the filter unit of the present invention, the tubular filter portion is made of thin stainless steel plate and said perforated outer wall portion is constituted by a perforated portion of the thin stainless steel pie, with the perforations preferably having a maximum opening diameter of less than 1 mm, preferably a maximum aperture diameter of 0.5 to 1 mm, such as 0.7 mm, to ensure that the tea leaves are retained in this inner space and not flushed through the perforations and into the interior of the thermos pitcher, could happen if the perforations were too large in diameter.
I overensstemmelse med en alternative udførelsesform for filterenheden ifølge den foreliggende frembringelse, er den rørformede filterdel fremstillet ved integral støbning af et støbbart, temperaturbestandigt 20 materiale, fortrinsvis plast, og den rørformede filterdel og gribe-eller holdedelen er yderligere i overensstemmelse med denne alternative udførelsesform fortrinsvis fremstillet i ét stykke ved integral støbning. I denne integral støbte udførelsesform kan gribe- eller holdedelen og den rørformede filterdel udgøre koniske elementer, der udgør sektioner af et 25 samlet integreret legeme.In accordance with an alternative embodiment of the filter unit according to the present invention, the tubular filter part is made by integrally molding a moldable, temperature-resistant material, preferably plastic, and the tubular filter part and the gripping or holding part are preferably in accordance with this alternative embodiment. made in one piece by integral casting. In this integrally molded embodiment, the gripping or holding portion and the tubular filter portion may constitute conical elements forming sections of an overall integral body.
Den foreliggende frembringelse vedrører også en anvendelse af en filterenhed i følge den foreliggende frembringelse, idet anvendelsen er ejendommelig ved, at filterenheden benyttes i forbindelse med en termokande, 30 der har en lysningsvidde ved termokandens øverste ende, som er mindre end 50 mm, såsom 20-50 mm, f.eks. 20-30 mm, 30-40 mm eller 40-50 mm, fortrinsvis 35-50 mm, f.eks. 35-45 mm.The present invention also relates to the use of a filter unit according to the present invention, the use being characterized in that the filter unit is used in connection with a thermos pitcher having a luminous width at the upper end of the thermos pitcher less than 50 mm, such as 20 -50 mm, e.g. 20-30 mm, 30-40 mm or 40-50 mm, preferably 35-50 mm, e.g. 35-45 mm.
I overensstemmelse med anvendelsen ifølge den foreliggende frembringelse 35 kan den ovenfor omtalte udførelsesform for filterenheden ifølge den foreliggende frembringelse, hvilken udførelsesform er ejendommelig ved, at den har en flange til samvirken med en fra termokandens overside opefter ragende flange, fordelagtigt benyttes i forbindelse med en sådan 7 DK 95 00170 U4 termokande, der har den omtalte opefter ragende flange.In accordance with the use of the present invention 35, the above-mentioned embodiment of the filter unit according to the present invention, which is characterized in that it has a flange for cooperating with a flange protruding upwards from the upper side of the thermos can advantageously be used in connection with such a 7 DK 95 00170 U4 thermos, having the said upwardly projecting flange.
Frembringelsen vil herefter blive nærmere forklaret under henvisning til tegningen, på hvilken 5 fig. 1 viser en første og i dag foretrukken udførelsesform for et te-filter ifølge den foreliggende frembringelse, set i perspektiv og fra en øverste ende, 10 fig. 2 viser den i fig. 1 viste udførelsesform, set i perspektiv og fra den modsatte eller nederste ende, fig- 3 viser den i fig. 1 og 2 viste udførelsesform, set i lodret snit, 15 fig. 4 viser den i fig. 1-3 viste udførelsesform, set fra siden, fig. 5 viser den tiltænkte anvendelse af tefilteret ifølge den foreliggende frembringelse ved fremstilling af te i fortrinsvis en termokande eller anden tilsvarende beholder, 20 fig. 6 viser en i forhold til den i fig. 1-4 viste udførelsesform let modificeret eller anden udførelsesform for tefilteret ifølge den foreliggende frembringelse, set i perspektiv og fra den øverste ende svarende til fig. 1 og 25 fig. 7 viser en alternativ eller tredje udførelsesform for tefilteret ifølge den foreliggende frembringelse, set i perspektiv og fra den nederste ende svarende til fig. 2.The invention will then be explained in more detail with reference to the drawing, in which FIG. 1 is a perspective view of a first and presently preferred embodiment of a tea filter according to the present invention, from a top end; FIG. 2 shows the one in FIG. 1 is a perspective view from the opposite or lower end; FIG. 3 shows the embodiment shown in FIG. 1 and 2, in vertical section, FIG. 4 shows the one in FIG. 1-3, side view, FIG. 5 shows the intended use of the tea filter according to the present invention in the preparation of tea in preferably a thermos or other similar container; FIG. 6 is a view similar to that of FIG. 1-4, slightly modified or other embodiment of the tea filter according to the present invention, seen in perspective and from the upper end corresponding to FIG. 1 and 25 FIG. 7 shows an alternative or third embodiment of the tea filter according to the present invention, viewed in perspective and from the lower end corresponding to FIG. 2nd
30 I fig. 1 og 2 er vist en i dag foretrukken udførelsesform for et tefil-ter ifølge frembringelsen, set i perspektiv og henholdsvis fra en øverste og en nederste ende. Udtryk såsom øverste og nederste ende, d.v.s. udtryk, der definerer en retning eller orientering, skal alene forstås i relation til den tiltænkte anvendelse af tefilteret ifølge frembringel-35 sen, nærmere bestemt den anvendelse, ved hvilken tefilteret er monteret i en termokande eller anden beholder, i hvilken der frembringes te ved ekstraktion af tedrik fra teblade, som er optaget i tefilteret, og ved hvilken termokanden eller den tilsvarende beholder er placeret i alt væ- 8 DK 95 00170 U4 sentligt lodret på et i hovedsagen vandret bord for dermed at sikre, at ekstraktionsdrikken ikke løber ud af termokanden eller den tilsvarende beholder.In FIG. 1 and 2, a preferred embodiment of a tea filter according to the present invention is shown in perspective and respectively from an upper and a lower end. Expressions such as upper and lower end, i.e. terms defining a direction or orientation are to be understood only in relation to the intended use of the tea filter according to the invention, in particular the use in which the tea filter is mounted in a thermos or other container in which tea is produced by extraction of tea beverages from tea leaves incorporated in the tea filter and in which the thermos pot or the corresponding container is placed in a total vertical position on a substantially horizontal table so as to ensure that the extraction drink does not run out of the thermos pot or the corresponding container.
Tefilteret 10 består i hovedsagen af to komponenter, et cirkulært cylindrisk, perforeret rør 12, hvis nederste ende er lukket med en cirkulær, ligeledes perforeret skive 14, som er svejst til det cirkulært cylindriske, perforerede rør 12, samt en ringjformet gribe- eller holdedel 16, der er sammenføjet med det cirkulært cylindriske, perforerede rør ved den øverste ende af dette. Det cirkulært cylindriske, perforerede rør 12 er fortrinsvis fremstillet af rustfrit stål, eksempelvis AISI 304-stål med en tykkelse på 0,7 mm. Perforeringerne i den tyndvæggede, rustfrie stål plade, af hvilken det cirkulært cylindriske, perforerede rør 12 er fremstillet, er fortrinsvis udformet med cirkulære perforeringer med en diameter på eksempelvis 0,7 mm, hvilke perforeringer er placeret i et kvadratisk net således, at centriene for perforeringerne er placeret i det kvadratiske nets knudepunkter, og således at kantlængden af det kvadratiske net er 2 mm. Alternative materialer, eksempelvis andre fortrinsvis korrosionsmodstandsdygtige materiale, såsom platin, guld, sølv, forniklet kobber etc. kan alternativt benyttes, ligesom andre perforeringsstørrelser og perforeringsafstande kan benyttes.Tea filter 10 consists essentially of two components, a circular cylindrical, perforated tube 12, the lower end of which is closed with a circular, also perforated disc 14 welded to the circular cylindrical, perforated tube 12, and an annular gripping or holding portion. 16, which is joined to the circular cylindrical perforated tube at the upper end thereof. The circular cylindrical perforated tube 12 is preferably made of stainless steel, for example AISI 304 steel having a thickness of 0.7 mm. The perforations of the thin-walled stainless steel plate, of which the circular cylindrical, perforated tube 12 is made, are preferably formed with circular perforations having a diameter of, for example, 0.7 mm, which perforations are placed in a square mesh such that the centers of the perforations are located in the nodes of the square grid and so that the edge length of the square grid is 2 mm. Alternative materials, for example, other preferably corrosion-resistant materials such as platinum, gold, silver, nickel-plated copper, etc. may alternatively be used, as may other perforation sizes and perforation distances.
Det cirkulært cylindriske, perforerede rør 12, der fortrinsvis har en længde på f.x. 142 mm og en ydre diameter på 33 mm, er som forklaret ovenfor lukket i den nederste ende ved hjælp af en cirkulær perforeret skive 14, fortrinsvis en skive ligeledes af AISI 304 rustfrit stål med samme perforeringsudformning som det cirkulært cylindriske rør 12, dog fordelagtigt fremstillet i en større tykkelse, f.x. 2 mm. I fig. 1 og 2 angiver henvisningsbetegnelsen 18 en perforering i det cirkulært cylindriske rør 12, medens henvisningsbetegnelsen 20 angiver en samling, fortrinsvis en svejsesamling mellem to kantdele af den tynde, perforerede rustfri stålplade, af hvilken det cirkulært cylindriske rør 12 er udformet, og i hvilken det ovenfor omtalte kvadratiske net er orienteret med forbindelseslinien mellem det kvadratiske nets knudepunkt og placeret ortogonalt i forhold til den rustfrie stål pi ades ydre kanter.The circular cylindrical, perforated tube 12, preferably having a length of e.g. 142 mm and an outer diameter of 33 mm, as explained above, is closed at the lower end by a circular perforated disc 14, preferably a disc also of AISI 304 stainless steel with the same perforation design as the circular cylindrical tube 12, however advantageously manufactured in a larger thickness, e.g. 2 mm. In FIG. 1 and 2, the reference numeral 18 denotes a perforation in the circular cylindrical tube 12, whereas the reference numeral 20 denotes a joint, preferably a weld joint, between two edge portions of the thin, perforated stainless steel plate of which the circular cylindrical tube 12 is formed. The above-mentioned square mesh is oriented with the connecting line between the node of the square mesh and located orthogonally with respect to the stainless steel at the outer edges.
Gribe- eller holdedelen 16 er fortrinsvis fremstillet af et temperaturbestandigt, ikke termisk ledende materiale såsom et plastmateriale, derThe gripping or retaining member 16 is preferably made of a temperature-resistant, non-thermally conductive material such as a plastic material which
9 DK 95 00170 U4 kan modstå lys og termiske påvirkninger. Eksempler på velegnede materialer er polyerer, såsom polyestere, polycarbonater, polyalkyler, f.eks.9 DK 95 00170 U4 can withstand light and thermal influences. Examples of suitable materials are polyesers such as polyesters, polycarbonates, polyalkyls, e.g.
PP, PB (polypropylen, polybutylen) eller højere homologer eller forgrenede varianter heraf, ABS (acrylbutadienstyren) eller copolymerer heraf, og endvidere rustfrit stål, der netop opfylder de netop angivne funktionelle krav. Gribe- eller holdedelen 16 udgør en i hovedsagen ringformet komponent, der er monteret i en stram pasning på den øverste åbne ende af det cirkulært cylindriske, perforerede rør 12, og som fra den øverste åbne ende af gribe- eller holdedelen danner en skrå indføringsflade 22, der fører fra en øverste rundtgående rand 24 af gribe-eller holdedelen ind til indervæggen af det cirkulært cylindriske, perforerede rør 12 og således tjener til at lede vand, der hældes ned i te-filteret 10 ind i det indre af det cirkulært cylindriske, perforerede rør 12. Gribe- eller holdedelen 16 er i den i fig. 1-4 viste udførelsesform tilpasset en specifik termokande og er således udformet med en rundtgående udfræsning 26 i undersiden af gribe- eller holdedelens 16 legeme til samvirken med en opadragende, rundtgående, cirkulær flange af pågældende termokande.PP, PB (polypropylene, polybutylene) or higher homologues or branched variants thereof, ABS (acrylic butadiene styrene) or copolymers thereof, and furthermore stainless steel which meets the specified functional requirements. The gripping or retaining member 16 is a generally annular component mounted in a tight fit on the upper open end of the circular cylindrical, perforated tube 12 and forming from the upper open end of the gripping or retaining member 22 an inclined insertion surface 22 leading from an upper circumferential rim 24 of the gripping or holding portion to the inner wall of the circular cylindrical, perforated tube 12, thus serving to conduct water poured into the tea filter 10 into the interior of the circular cylindrical, perforated tubes 12. The gripping or holding portion 16 is in the embodiment shown in FIG. 1-4 adapted to a specific thermos jug and are thus formed with a circular cutter 26 in the underside of the body of the gripping or holding member 16 for cooperation with an upwardly extending circular flange of the thermos jug in question.
I fig. 3 er den i perspektiv i fig. 1 og 2 viste første udførelsesform for et tefilter ifølge opfindelsen vist i lodret snit visende de ovenfor beskrevne dele og komponenter, specielt den skrå indføringsflade 22 og den rundtgående udfræsning 26 i gribe- og holdedelen 16's legeme. Tilsvarende er i fig. 4 vist den ovenfor beskrevne og i dag foretrukne udførelsesform for tefilteret ifølge opfindelsen set fra siden.In FIG. 3 is the perspective view of FIG. 1 and 2 show a first embodiment of a tea filter according to the invention shown in vertical section showing the parts and components described above, in particular the inclined insertion surface 22 and the circumferential cutter 26 in the body of the gripping and holding part 16. Similarly, in FIG. 4 is a side view of the above-described and presently preferred embodiment of the tea filter according to the invention.
Fig. 5 viser den tiltænkte anvendelse af tefilteret ifølge den foreliggende frembringelse, nærmere bestemt den ovenfor omtalte anvendelse til fremstilling af te ved ekstraktion af tedrik fra teblade, som er optaget i tefilterets indre. I fig. 5 er således vist tefilteret 10 med teblade placeret i den nederste del af det cirkulært cylindriske, perforerede rør 12's indre. Tefilteret ifølge den foreliggende frembringelse er specielt indrettet til og muliggør til forskel fra kendte tefiltre fremstilling af te i termokander eller andre beholdere med meget lille åbning, der fordelagtigt begrænser varmeafgivelsen fra termokandens eller beholderens indre. Henvisningsbetegnelsen 30 angiver således i fig.FIG. 5 shows the intended use of the tea filter according to the present invention, in particular the above-mentioned use for the preparation of tea by extracting tea beverages from tea leaves which are taken up in the interior of the tea filter. In FIG. 5, the tea filter 10 with tea leaves is thus shown in the lower part of the interior of the circular cylindrical, perforated tube 12. The tea filter according to the present invention is specially designed for and unlike known tea filters, the preparation of tea in thermos or other small opening containers which advantageously limits the heat release from the interior of the thermos or container. Thus, the reference numeral 30 indicates in FIG.
5 en termokande, der kan være af vilkårlig form, men har det for termokander almindeligt forekomne træk, at termokandens åbning er af lille 10 DK 95 00170 U4 størrelse sammenlignet med eksempelvis åbnijngen i en konventionel tekan-de. Medens det ved brug af talrige tefilterlkonstruktioner såvel af éngangstypen som af genbrugstypen er muligt at fremstille te i tekander, har det ikke tidligere med kendte tefilterkionstruktioner, hverken af 5 éngangstypen eller genbrugstypen, været muligt at fremstille te direkte i eksempelvis en termokande eller en anden beholder med lille åbning, d.v.s. en åbning med en åbningsdiameter på mindre end 35-40 mm. Det har således tidligere været nødvendigt først at fremstille teen i en tekande og efterfølgende hælde teen fra tekanden over i en termokande, i hvilken 10 teen har kunnet holde sig varm takket være termokandens gode termiske isoleringsegenskaber betinget af dels termokandens indre termobeholder, dels den begrænsede størrelse af åbningen til termoflaskens indre gennem termokandens øverste åbning, hvilken åbning lukkes ved hjælp af en prop eller lignende lukkeindretning, der til forskel fra termokandens indre 15 termobeholder ikke har helt optimale termiske isoleringsegenskaber og følgelig for reduktion af varmeafgivelsen fra termokandens indre er konstrueret i mindst mulig størrelse, dog under hensyntagen til en bekvem og sikker håndtering af termokanden, specielt under skænkning af den indeholdte ekstraktionsdrik fra termokandens indre.5 a thermos pitcher which may be of any shape, but has the characteristic common to thermos pitchers that the opening of the thermos pitcher is small in size compared to, for example, the opening in a conventional drawing. While it is possible to make tea in teapots using numerous tea filter constructions both of the disposable and the recycled type, it has not previously been possible to make tea directly in, for example, a thermos or another container with known tea filter constructions, neither of the disposable type nor the recycled type. with small opening, ie an aperture having an aperture diameter of less than 35-40 mm. Thus, it has previously been necessary to first prepare the tea in a teapot and subsequently pour the tea from the teapot into a thermos, in which 10 teas have been able to stay warm thanks to the good thermal insulation properties of the thermos conditional on both the thermos pitcher's internal thermos and the limited size of the opening to the interior of the thermos through the top opening of the thermos, which opening is closed by a plug or similar closure device which, unlike the interior of the thermos, has no optimum thermal insulation properties and consequently for reducing the heat release from the interior of the thermos size, however, taking into account the convenient and safe handling of the thermos, especially during the pouring of the extracted beverage from the interior of the thermos.
20 I fig. 6 er svarende til fig. 1 vist en anjden eller alternativ udformning af tefilteret ifølge den foreliggende frembringelse, hvilken anden udførelsesform adskiller sig fra den ovenfor under henvisning til fig. 1-4 beskrevne udførelsesform ved, at tefilterets nederste ende er udfor-25 met således, at tefilteret kan åbnes for dermed at lette rengøring af tefilterets indre ved fjernelse af brugte teblade fra tefilterets indre efter brug.In FIG. 6 is similar to FIG. 1 shows a different or alternative embodiment of the tea filter according to the present invention, which differs from the one described above with reference to FIG. 1-4, wherein the bottom end of the tea filter is designed so that the tea filter can be opened to facilitate cleaning of the interior of the tea filter by removing used tea leaves from the interior of the tea filter after use.
I fig. 6 benyttes således de samme henvisningsbetegnelser for de samme 30 komponenter som vist i fig. 1-4, medens de komponenter, som adskiller sig fra de ovenfor under henvisning til fig. 1-4 beskrevne, er angivet med samme henvisningsbetegnelser som i fig. 1-4, dog tilføjet angivelsen '. Den i fig. 6 viste udførelsenform 10' adskiller sig således fra den ovenfor under henvisning til fig. 1-4 beskrevne udførelsesform ved, at 35 det cirkulært cylindriske, perforerede rør 12' ved sin nederste ende er udformet med udvendigt gevind 13, der tjener til at samvirke med indvendige gevind 15 i en bund- eller lukkedel 14', som kan påmonteres og fjernes fra det cirkulært cylindriske, perforerede rør 12' ved hjælp af 11 DK 95 00170 U4 de samvirkende gevind 13 og 15. I øvrigt er perforeringerne 18' i det cirkulært cylindriske, perforerede rør 12' placeret anderledes i forhold til det ovenfor under henvisning til fig. 1-4 beskrevne mønster, idet det af perforeringerne 18' dannede kvadratiske net strækker sig i en 5 vinkel på 45° i forhold til længdeaksen for det cirkulært cylindriske, perforerede rørs 12'.In FIG. 6, the same reference numerals are used for the same components as shown in FIG. 1-4, while the components which differ from those above with reference to FIG. 1-4 are indicated by the same reference numerals as in FIG. 1-4, however, added the entry '. The FIG. 6 is thus different from that shown above with reference to FIG. 1-4, wherein the circular cylindrical perforated pipe 12 'is formed at its lower end with an external thread 13 which serves to cooperate with the internal thread 15 in a bottom or closure member 14' which can be mounted and removed from the circular cylindrical perforated tube 12 'by means of the cooperating threads 13 and 15. Moreover, the perforations 18' in the circular cylindrical perforated tube 12 'are positioned differently from the one above with reference to FIG. 1-4, the square mesh formed by the perforations 18 'extending at an angle of 45 ° to the longitudinal axis of the circular cylindrical perforated tube 12'.
I fig. 7 er vist en alternativ eller tredje udførelsesform for te-filteret ifølge den foreliggende frembringelse. Den i fig. 7 viste 10 tredje udførelsesform adskiller sig fra de ovenfor under henvisning til fig. 1-4 og 6 beskrevne udførelsesformer ved, at den i fig. 7 viste udførelsesform, som under ét er angivet med henvisningsbetegnelsen 40, er integralstøbt af et korrosionsbestandigt materiale, fortrinsvis plast. Den integral støbte udførelsesform 40 omfatter endvidere til forskel fra 15 de ovenfor beskrevne udførelsesformer, i hvilke der er indeholdt en cirkulært cylindrisk, perforeret rørdel, en perforeret, svagt konisk rørformet midterste del 42, der i den nederste ende er afsluttet af en kuppelformet, lukket endedel 44. Modsat den lukkede endedel 44, er den svagt koniske, perforerede midterste del 42 ved sin øverste ende forbun-20 det med en kraveformet, rundtgående flange 46, der danner en til den ovenfor beskrevne gribe- og holdedel 16 svarende komponent, der tjener til at muliggøre håndtering af tefilteret under brug, d.v.s. under nedsænkning i og optagning fra en beholder, fortrinsvis en termokande. Den rundtgående flangeformede del 46 er endvidere udformet med et udragende 25 gribeøje 48. For at tillade, at kogende vand, som hældes ned i tefilteret 40, kan løbe igennem de i tefilterets indre indeholdte teblade og frembringe et ekstrakt af disse og tillade, at vand i beholderen, fortrinsvis termokanden, kan diffundere ind i tefilteres indre, er den svagt koniske perforerede midterste del 42 udformet med perforeringer, 30 af hvilke én er angivet med henvisningsbetegnelsen 50.In FIG. 7 shows an alternative or third embodiment of the tea filter according to the present invention. The FIG. 7, the third embodiment shown differs from the above with reference to FIG. 1-4 and 6, wherein the embodiment of FIG. 7, which together are designated by reference numeral 40, are integrally molded from a corrosion resistant material, preferably plastic. The integrally molded embodiment 40 further comprises, unlike 15 the embodiments described above, which contain a circular cylindrical, perforated pipe member, a perforated, slightly conical tubular middle portion 42 terminated at the lower end by a dome shaped End portion 44. In contrast to closed end portion 44, the slightly tapered, perforated central portion 42 at its upper end is joined by a collar-shaped, circumferential flange 46 forming a component corresponding to the above-described gripping and holding portion 16 which serves to enable handling of the tea filter during use, ie during immersion in and receiving from a container, preferably a thermos. Further, the circumferential flange-shaped portion 46 is formed with a protruding gripping eye 48. To allow boiling water poured into the tea filter 40 to run through the tea leaves contained within the tea filter's interior and produce an extract thereof and allow water to in the container, preferably the thermos can diffuse into the interior of the tea filters, the slightly tapered perforated central portion 42 is formed with perforations 30, one of which is designated by the reference numeral 50.
Tefilteret kan afhængigt af det aktuelle materialevalg fremstilles ved brug af i sig selv velkendte teknikker omfattende valsning, stansning, svejsning og lodning, i det tilfælde hvor den perforerede rørdel er 35 fremstillet af metal, medens i sig selv velkendte plastfremstillings-teknikker omfattende sprøjtestøbning, blæsestøbning etc. og eventuel efterfølgende bearbejdning kan benyttes til såvel fremstilling af den separate gribe- eller holdedel 16 beskrevet ovenfor under henvisning til 12 DK 95 00170 U4 fig. 1-6, men også ved fremstilling af den integrerede konstruktion beskrevet ovenfor under henvisning til fig. 7.Depending on the material selection, the tea filter can be made using techniques well known in the art including rolling, punching, welding and brazing, in the case where the perforated pipe member is made of metal, while in itself well-known plastic manufacturing techniques comprising injection molding, blow molding. etc. and any subsequent machining can be used to produce both the separate gripping or holding portion 16 described above with reference to FIG. 1-6, but also in the preparation of the integrated structure described above with reference to FIGS. 7th
Selv om frembringelsen ovenfor er blevet beskrevet under henvisning til 5 en række udførelsesformer, af hvilke den i fig. 1-4 viste er den i dag foretrukne, kan der inden for den foreliggende frembringelses rammer, således som disse er defineret i de efterfølgende patentkrav, foretages talrige modifikationer og ændringer uden at afvige fra frembringelsens ånd eller sigte. Der kan således umiddelbart foretages modifikationer af 10 den foreliggende frembringelse i såvel forin som materialevalg uden derved at afvige fra frembringelsens ånd eller sigte.Although the foregoing has been described with reference to 5 a number of embodiments, the embodiment of which in FIG. 1-4 are preferred today, within the scope of the present invention, as defined in the appended claims, numerous modifications and alterations may be made without departing from the spirit or purpose of the invention. Thus, modifications of the present invention can be made immediately in both the front and the material selection without thereby departing from the spirit or aim of the production.
13 13DK 95 00170 U413 13DK 95 00170 U4
HENVISNINGSBETEGNELSERNOTE NAMES
10 første og foretrukken udførelsesform for tefilter 12 cirkulært cylindrisk, perforeret rør 14 perforeret cirkulær skive 16 gribe- eller holdedel 18 perforering 20 samling 22 skrå flade 24 rundtgående kant 26 rundtgående fræsning 10' anden eller modificeret udførelsesform for tefilteret 12' cirkulært cylindrisk, perforeret rør 13 udvendigt gevind 14' bunddæksel 15 indvendigt gevind 18' perforering 30 termokande 32 åbning i termokande 40 tredje udførelsesform 42 perforeret, svagt konisk, rørformet midterste del 44 kuppelformet lukket endedel 46 rundgående flange 48 gribeøje 50 perforering10 first and preferred embodiment of tea filter 12 circular cylindrical, perforated tube 14 perforated circular disc 16 gripping or holding portion 18 perforation 20 assembly 22 inclined surface 24 circumferential edge 26 circumferential milling 10 'second or modified embodiment of tea filter 12' circular cylindrical perforated tube 13 external thread 14 'bottom cover 15 internal thread 18' perforation 30 thermos pitcher 32 opening in thermos pitcher 40 third embodiment 42 perforated, slightly conical, tubular middle part 44 dome closed end portion 46 circular flange 48 gripper eye 50 perforation
Claims (12)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK9500170U DK9500170U4 (en) | 1995-04-28 | 1995-04-28 | tea filter |
| PCT/DK1996/000193 WO1996033644A1 (en) | 1995-04-28 | 1996-04-29 | Tea filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK9500170U DK9500170U4 (en) | 1995-04-28 | 1995-04-28 | tea filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DK9500170U4 true DK9500170U4 (en) | 1996-07-28 |
Family
ID=8155170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK9500170U DK9500170U4 (en) | 1995-04-28 | 1995-04-28 | tea filter |
Country Status (2)
| Country | Link |
|---|---|
| DK (1) | DK9500170U4 (en) |
| WO (1) | WO1996033644A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29707092U1 (en) * | 1997-04-19 | 1997-06-12 | Este Steding & Co. GmbH, 58511 Lüdenscheid | Filters for brewed beverages |
| JP5917837B2 (en) * | 2011-06-10 | 2016-05-18 | 株式会社オプトニクス精密 | Filter for extracting coffee and tea, and method for producing the same |
| CN103350325B (en) * | 2013-06-26 | 2016-01-06 | 广东紫丁香实业股份有限公司 | The production technology of net courage and a kind of net courage |
| WO2019110440A1 (en) * | 2017-12-05 | 2019-06-13 | Unilever Plc | Beverage infusion vial |
| US20220161172A1 (en) * | 2020-11-23 | 2022-05-26 | Arielle Svetlana Breuninger | Nickel-based airborne pathogen inhibitor against microbes, including covid-19 |
| EP4029416A1 (en) * | 2021-01-13 | 2022-07-20 | ARB (Société par Actions Simplifiée) | Removable infuser for tea or another plant for infusion capable of and intended for equipping an infuser container and infuser container provided with an infuser |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE370617C (en) * | 1921-05-11 | 1923-03-05 | Adolf Huesing | Device for the production of infusion drinks |
| CH152562A (en) * | 1930-11-04 | 1932-02-15 | Motor Condensator Compagnie G | Coffee filter. |
| DE1962378A1 (en) * | 1969-12-12 | 1971-06-16 | Bednartz Hugo | Use for infusing and filtering beverages with residue, especially tea and coffee |
-
1995
- 1995-04-28 DK DK9500170U patent/DK9500170U4/en not_active IP Right Cessation
-
1996
- 1996-04-29 WO PCT/DK1996/000193 patent/WO1996033644A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO1996033644A1 (en) | 1996-10-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| UBP | Utility model lapsed |