EP0996503A1 - Water container with filter cartridge - Google Patents

Water container with filter cartridge

Info

Publication number
EP0996503A1
EP0996503A1 EP98941263A EP98941263A EP0996503A1 EP 0996503 A1 EP0996503 A1 EP 0996503A1 EP 98941263 A EP98941263 A EP 98941263A EP 98941263 A EP98941263 A EP 98941263A EP 0996503 A1 EP0996503 A1 EP 0996503A1
Authority
EP
European Patent Office
Prior art keywords
filter cartridge
water
filter
water container
water tank
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP98941263A
Other languages
German (de)
French (fr)
Inventor
Klaus E. Zucholl
Günter Biechele
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aquis Wasser Luft Systeme GmbH Lindau Zweigniederlassung Rebstein
Original Assignee
Aquis Wasser Luft Systeme GmbH Lindau Zweigniederlassung Rebstein
Aweco Appliance Systems GmbH and Co KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7834668&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0996503(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Aquis Wasser Luft Systeme GmbH Lindau Zweigniederlassung Rebstein, Aweco Appliance Systems GmbH and Co KG filed Critical Aquis Wasser Luft Systeme GmbH Lindau Zweigniederlassung Rebstein
Priority to EP03003807A priority Critical patent/EP1340442B2/en
Publication of EP0996503A1 publication Critical patent/EP0996503A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C02F1/003—Processes for the treatment of water whereby the filtration technique is of importance using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices
    • 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
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/60—Cleaning devices
    • A47J31/605—Water filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
    • B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
    • B01D24/14—Downward filtration, the container having distribution or collection headers or pervious conduits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/08—Regeneration of the filter
    • B01D2201/088—Arrangements for killing microorganisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/34—Seals or gaskets for filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/40—Special measures for connecting different parts of the filter
    • B01D2201/4084—Snap or Seeger ring connecting means
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/006—Cartridges
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/40—Liquid flow rate

Definitions

  • the invention relates to a water container with a filter cartridge according to the preamble of claim 1.
  • water treatment using a water filter is often provided.
  • an integrated mixture of activated carbon and ion exchanger is provided in a filter cartridge, which removes odors and flavors, heavy metals, organic impurities and suspended matter (particles) and, if necessary, reduces the water hardness.
  • Known beverage machines use interchangeable filter cartridges for this purpose, which are arranged outside the water tank in the process of beverage preparation.
  • a device suitable for this is described in GB 1 159 078-B.
  • a disadvantage of this device is the high effort for replacing the cartridge, in particular the loosening and establishing the water-carrying connection with the risk of leakage, and the high space requirement due to the housing and connection technology. Due to the large number of sealing and screw connections as well as housing gaps there is an increased risk of contamination.
  • DE 35 22 966.7 filter cartridges for water filter cans are described. These cans usually consist of a raw water tank with a receptacle for the filter cartridges, the filter cartridge itself and the clean water tank.
  • these devices are impractical due to the separate water treatment step, the filter bed can dry out and there is a risk of bed compression and channel formation in the filter bed due to the discharge operation.
  • the filter cartridges can still not be used directly in the water tank of beverage machines.
  • the object of the invention is to propose a water container with a filter cartridge in which the risk of nucleation and bed compression of the filter bed is reduced or avoided.
  • a water container according to the invention is provided with a filter cartridge in the interior of the water container, a water inlet opening of the filter cartridge being arranged at the bottom and a passage for the water through the filter cartridge in the upflow. Furthermore, a descending downpipe for guiding the water to a removal connection of the water container located below is provided. This flows through the filter cartridge in a so-called upflow principle.
  • the filter mixture which preferably consists of activated carbon and ion exchanger in a known manner, is suspended upwards during operation, which counteracts bed compression of the filter bed. Due to the arrangement inside the container, the risk of leakage is harmless, so that simple sealing measures can be used. With the help of the downpipe, which opens at the bottom of the filter cartridge, the connection to the drain line of the container can be easily established.
  • the descending downpipe is advantageously arranged within the filter cartridge.
  • the bottom connection of the filter cartridge can be made centrally, the inflow openings in the filter cartridge being able to be made at any position further out, preferably distributed in a ring.
  • holding elements projecting upward from the bottom of the container are provided for fixing the filter cartridge.
  • the filter cartridge can be attached to such holding elements, there being no bottom depressions in which corresponding backwater can form even when the container is empty.
  • Fixing elements of the filter cartridge can act on such holding elements, so that the filter cartridge is fixed in the water tank by positive locking.
  • the filter cartridge By attaching the filter cartridge to the bottom of the water tank in the immediate area of the drain connection, other, z. B. laterally attached to the water tank. When the filter cartridge is removed, the water tank is freely accessible for cleaning or other handling.
  • the holding elements have passages at the bottom of the water container. This enables the water to be drawn off even without a filter cartridge, water passing directly through these passages into the drain of the container bottom. Accordingly, the passages in the holding elements on the tank bottom should be as close as possible to the floor level in order to enable the water tank to be emptied as completely as possible when operating without a filter cartridge.
  • the holding elements are designed as an annular plug-in base.
  • This plug-in base can be designed, for example, in the form of an annular web with corresponding bottom bores or also in the form of pins arranged in a ring.
  • a likewise annular inner collar of the filter cartridge is preferably inserted into this annular arrangement. With the help of this inner collar, which is advantageously additionally provided with a seal, the passage to the container drain intended for filter-free operation can thus be closed and sealed within the plug-in base during filter operation.
  • this seal is designed as an axial seal, which seals the inner collar against the bottom of the container.
  • an additional sieve is provided for retaining particles, for example filter material, in the drainage area of the downpipe, this can be fixed, for example, by a corresponding disc-shaped collar protruding between the axial seal mentioned and the bottom of the container and by inserting the filter cartridge is fixed to the bottom of the container via the inner collar and the axial seal.
  • an outer annular outer collar is also provided on the filter cartridge, which surrounds the outside of the plug-in base. This makes it possible that the actual filter bed in the radial direction over the The plug-in base starts protruding above the plug-in base, but a low suction height of the water is still guaranteed. A low suction height is necessary in order to empty the water tank as much as possible during filter operation.
  • the outer collar can, for example, have corresponding passages near the bottom or also end at a certain distance from the tank bottom. In the latter case, a suction gap is left open along the entire circumference of the outer collar, through which the container is emptied during filter operation.
  • This stop can be realized, for example, in the form of a projection which projects radially from the inner collar and which abuts on the plug-in base.
  • the outer collar can also be provided with clamping elements, by means of which it can be clamped on the plug-in base.
  • clamping elements can be designed, for example, in the form of clamping ribs, so that the passage of the sucked-in water to the filter bed remains ensured between the clamping ribs.
  • a filter mixture of activated carbon and possibly of ion exchange resin is preferably used.
  • a boundary made of porous filter layers for example made of porous polyethylene, is preferably provided.
  • other mechanical restraint systems e.g. B. corresponding sieve inserts.
  • length compensation is also provided for using the filter cartridge in water containers of different heights. In a particularly simple embodiment, such a length compensation can be designed in the form of an extension rod or an extension tube.
  • the filter cartridge can always be of the same design, a cover with the length compensation required in each case being used.
  • the lid is advantageously designed to be replaceable, for example with the aid of snap-in connections.
  • the length compensation can be done by pressing on the cover with the appropriate length compensation when installing the filter cartridge.
  • a device for identifying the expiry date of the filter is attached to the filter cartridge.
  • the filter can already be marked during assembly so that it can be checked at any time by visual inspection whether a filter replacement is necessary.
  • This date setting is preferably attached to the cover in such a way that the date marking is adjusted by turning the cover. In particular, this also enables the setting of this date marking by turning the cover over the length compensation attached to it. In this respect, the setting is easy to use even when the lid of the filter cartridge is located far inside the water tank.
  • the filter cartridge is provided with a circumferential taper from top to bottom.
  • FIG. 1 shows a schematic longitudinal section through a filter cartridge in a water container
  • FIG. 2 is a plan view of an object according to FIG. 1,
  • FIG. 3 shows an enlarged detail from FIG. 1 in the connection area of the container bottom
  • Fig. 4 is a schematic longitudinal section of a further embodiment
  • FIG. 5 is a top view of the embodiment of FIG. 4.
  • a filter cartridge 2 with a filter mixture 3, for example made of activated carbon and ion exchange resin.
  • the wall 4 of the filter cartridge 2 is formed with a tapering cross section from top to bottom. which facilitates the floating of the filter mixture 3.
  • a downpipe 5 is arranged essentially vertically in the interior of the filter cartridge 2 and is closed off with a filter attachment 6 made of porous material, for example polyethylene.
  • the entire filter cartridge 2 is closed with a cover 7, which has a rotary mechanism (not recognizable in more detail) for marking a date.
  • the cover 7 comprises a window 8 through which a marking disc 9 is visible.
  • the marking of the marking disk 9 visible in the window 8 can thus be adjusted.
  • a plug-in base 12 is integrally formed on the container bottom 10 around a drain 11.
  • a sieve insert 13 with an annular collar 14 is inserted within the plug base 12.
  • the sieve insert 13 is enclosed by an inner collar 15 which has a radially outwardly projecting stop 16 for limiting the insertion depth.
  • an axial seal 17 is attached, i. H. in the present case inserted into a corresponding flat annular groove.
  • the axial seal 17 seals the inner collar 15 over the ring collar 14 to the container bottom 10.
  • the inner collar 15 merges into the downpipe 5 on its upper side via a shoulder 18.
  • the peripheral wall 20 merges into an outer collar 21 which, due to the insertion depth specified by the stop 16, leaves an intake gap 22 in the region of the container bottom 10.
  • the diameter of the Outer collar 21 is dimensioned such that a passage 23 to the filter insert 19 remains open between the outer collar 21 and the stop 16 projecting radially from the inner collar.
  • the outer collar 21 is also clamped on the plug base 12 by means of clamping ribs 24.
  • FIGS. 4 and 5 essentially corresponds to the subject of FIGS. 1 and 2.
  • the same filter cartridge 2 is used as in the aforementioned embodiment.
  • Only the lid 7 ' is otherwise designed in that it is provided with a rod extension 25. Since the covers 7, 7 'are simply attached to the filter cartridge with the aid of a catch, the attachment of the rod extension 25 is particularly simple.
  • the filter cartridge 2 can easily be inserted into the water tank 1 'from above and plugged onto the plug-in base 12 and, on the other hand, additionally fixed on the top, if appropriate, via a corresponding, not shown, tank lid.
  • the lid marking can also be conveniently actuated via the rod extension 25, as in the aforementioned exemplary embodiment the lid 7 'is rotated until the correct marking of the marking disk 9' can be seen in its window 8 '.
  • the device according to the invention functions in the following manner.
  • the required amount of water is sucked in via the drain 11 from the corresponding vending machine. This leads to a water flow from the inside of the container 1 through the suction gap 22 between the outer collar 21 and the container bottom 10. The water flows inside the outer collar 21 between the clamping ribs 24 upwards to the filter insert 19 and passes through it.
  • the filter insert 19 like the filter attachment 6, which can consist of the same material, serves to hold the filter mixture 3 inside the filter cartridge 2.
  • the sucked-in water then flows upwards through the filter mixture 3 and is filtered in the process and softened if necessary in the presence of ion exchange resin.
  • the water enters the downpipe 5, through which it can flow downwards, where it passes into the drain 11 after passing through the strainer insert 13 and is available for the preparation of beverages.
  • the area within the outer collar, which is connected to the water of the container 1 through the suction gap 22, must be reliably sealed off from the drain 11. This is achieved in the present case by the axial seal 17 in connection with the inner collar 15.
  • the plug-in base 12 advantageously has 10 passages at least in the region of the container bottom.
  • the plug-in base 12 can also consist of individual upstanding ribs, since the inner closure takes place via the inner collar 15 and the axial seal 17.
  • the plug-in base 12 must be permeable to water in the region of the container bottom, provided that the water container 1 is also used without a filter cartridge 2 and is complete Emptying of the container 1 should take place. With the filter cartridge 2 removed, the water in the bottom of the container flows directly through the passages 26 into the drain 11.
  • Operation without a filter cartridge 2 can be useful if this is not necessary due to the water quality or if the operation should not be interrupted if there is no replacement filter cartridge 2, the corresponding drinks machine being operated temporarily without water treatment.
  • the due replacement of the filter cartridge 2 can be easily set via the markings 7, 8, 9, so that the replacement is not forgotten at the appropriate time.
  • the described filter cartridge 2 in the water tank 1 offers the various advantages mentioned above.
  • the filter mixture 3 cannot be compressed because it is regularly suspended by the inflow of water.
  • the filter cartridge 2 can be used by simply plugging it onto the plug base 12 without any further connection connections.
  • the arrangement of the filter cartridge 2 inside the water container 1 makes the entire device insensitive to any leakage at the filter connection.

Abstract

The invention relates to a water container with a filter cartridge, for use especially in beverage-dispensing machines, which reduces or eliminates the risk of germ formation and of densification of the filter bed. To this end the invention provides for the water inlet opening (22) of the filter cartridge (2) to be arranged at the bottom. It also provides for a passage through which the water can pass through the filter cartridge (2) in the ascending current and a descending return pipe (5) for taking the water to the outlet (11) situated at the bottom of the water container (1).

Description

"Wasserbehälter mit Filterpatrone""Water tank with filter cartridge"
Die Erfindung betrifft einen Wasserbehälter mit Filterpatrone nach dem Oberbegriff des Anspruchs 1.The invention relates to a water container with a filter cartridge according to the preamble of claim 1.
In Getränkeautomaten, insbesondere in Kaffee- und Teemaschinen wird häufig eine Wasseraufbereitung unter Verwendung eines Wasserfilters vorgesehen. Hierbei wird in einer Filterpatrone ein integriertes Gemisch aus Aktivkohle und Ionentauscher vorgesehen, das Geruchs- und Geschmacksstoffe, Schwermetalle, organische Verunreinigungen und Schwebstoffe (Partikel) entfernt sowie ggf. die Wasserhärte reduziert.In beverage vending machines, especially in coffee and tea machines, water treatment using a water filter is often provided. In this case, an integrated mixture of activated carbon and ion exchanger is provided in a filter cartridge, which removes odors and flavors, heavy metals, organic impurities and suspended matter (particles) and, if necessary, reduces the water hardness.
Bekannte Getränkemaschinen benutzen hierzu auswechselbare Filterpatronen, die in den Verfahrensweg der GetränkeZubereitung außerhalb des Wassertanks angeordnet sind. Eine hierfür geeignete Vorrichtung beschreibt die GB 1 159 078-B. Nachteilig bei dieser Vorrichtung ist der hohe Aufwand zum Auswechseln der Patrone, insbesondere das Lösen und Herstellen der wasserführenden Verbindung mit der Gefahr einer Leckage sowie der hohe Platzbedarf durch die Gehäuse- und Anschlußtechnik. Durch die Vielzahl von Dicht- und Schraubverbindungen sowie Gehäusespalten besteht hier eine erhöhte Verkeimungsgefahr. Daneben sind in der DE 35 22 966.7 Filterpatronen für Wasserfilterkannen beschrieben. Diese Kannen bestehen in der Regel aus einem Rohwassertank mit einer im unteren Bereich befindlichen Aufnahme für die Filterpatronen, der Filterpatrone selbst sowie dem Reinwassertank. Diese Vorrichtungen sind jedoch durch den getrennten Wasseraufbereitungsschritt unpraktisch, das Filterbett kann austrocknen und durch den Abstrombetrieb besteht die Gefahr der Bettverdichtungen und Kanalbildung im Filterbett. Die Filterpatronen sind weiterhin nicht unmittelbar im Wassertank von Getränkemaschinen einsetzbar.Known beverage machines use interchangeable filter cartridges for this purpose, which are arranged outside the water tank in the process of beverage preparation. A device suitable for this is described in GB 1 159 078-B. A disadvantage of this device is the high effort for replacing the cartridge, in particular the loosening and establishing the water-carrying connection with the risk of leakage, and the high space requirement due to the housing and connection technology. Due to the large number of sealing and screw connections as well as housing gaps there is an increased risk of contamination. In addition, DE 35 22 966.7 filter cartridges for water filter cans are described. These cans usually consist of a raw water tank with a receptacle for the filter cartridges, the filter cartridge itself and the clean water tank. However, these devices are impractical due to the separate water treatment step, the filter bed can dry out and there is a risk of bed compression and channel formation in the filter bed due to the discharge operation. The filter cartridges can still not be used directly in the water tank of beverage machines.
Die Erfindung hat demgegenüber die Aufgabe, einen Wasserbehälter mit Filterpatrone vorzuschlagen, bei dem die Gefahr der Keimbildung und der Bettverdichtung des Filterbetts reduziert bzw. vermieden wird.In contrast, the object of the invention is to propose a water container with a filter cartridge in which the risk of nucleation and bed compression of the filter bed is reduced or avoided.
Durch die in den Unteransprüchen genannten Maßnahmen sind vorteilhafte Ausführungen und Weiterbildungen der Erfindung möglich.Advantageous designs and developments of the invention are possible through the measures mentioned in the subclaims.
Dementsprechend wird ein erfindungsgemäßer Wasserbehälter mit einer Filterpatrone im Innern des Wasserbehälters versehen, wobei eine Wassereintrittsöffnung der Filterpatrone unten angeordnet und ein Durchgang für das Wasser durch die Filterpatrone im Aufström vorhanden ist. Weiterhin ist eine absteigende Falleitung zur Führung des Wassers zu einem unten befindlichen Entnahmeanschluß des Wasserbehälters vorgesehen. Hierdurch wird die Filterpatrone in einem sogenannten Aufstromprinzip durchströmt. Dabei wird das Filtergemisch, das bevorzugt in bekannter Weise aus Aktivkohle und Ionentauscher besteht, während des Betriebs nach oben hin aufgeschwemmt, was einer Bettverdichtung des Filterbettes entgegenwirkt . Durch die Anordnung im Innern des Behälters ist die Leckagegefahr unbedenklich, so daß mit einfachen Dichtungsmaßnahmen gearbeitet werden kann. Mit Hilfe der Falleitung, die am Boden der Filterpatrone ausmündet, kann problemlos der Anschluß zur Abflußleitung des Behälters hergestellt werden.Accordingly, a water container according to the invention is provided with a filter cartridge in the interior of the water container, a water inlet opening of the filter cartridge being arranged at the bottom and a passage for the water through the filter cartridge in the upflow. Furthermore, a descending downpipe for guiding the water to a removal connection of the water container located below is provided. This flows through the filter cartridge in a so-called upflow principle. The filter mixture, which preferably consists of activated carbon and ion exchanger in a known manner, is suspended upwards during operation, which counteracts bed compression of the filter bed. Due to the arrangement inside the container, the risk of leakage is harmless, so that simple sealing measures can be used. With the help of the downpipe, which opens at the bottom of the filter cartridge, the connection to the drain line of the container can be easily established.
Vorteilhafterweise wird die absteigende Falleitung innerhalb der Filterpatrone angeordnet. Somit kann der Bodenanschluß der Filterpatrone zentral erfolgen, wobei die Zuflußöffnungen in die Filterpatrone an beliebiger Position weiter außen, bevorzugt ringförmig verteilt angebracht werden können.The descending downpipe is advantageously arranged within the filter cartridge. Thus, the bottom connection of the filter cartridge can be made centrally, the inflow openings in the filter cartridge being able to be made at any position further out, preferably distributed in a ring.
In einer vorteilhaften Ausführungsform der Erfindung werden vom Boden des Behälters nach oben ragende Halteelemente zur Fixierung der Filterpatrone vorgesehen. Auf solchen Halteelementen ist ein Aufstecken der Filterpatrone möglich, wobei keinerlei Bodenvertiefungen vorhanden sind, in denen sich entsprechendes Stauwasser auch bei entleertem Behälter bilden kann.In an advantageous embodiment of the invention, holding elements projecting upward from the bottom of the container are provided for fixing the filter cartridge. The filter cartridge can be attached to such holding elements, there being no bottom depressions in which corresponding backwater can form even when the container is empty.
An derartige Halteelemente können Fixierelemente der Filterpatrone angreifen, so daß durch Formschluß die Filterpatrone im Wasserbehälter fixiert ist. Durch die Befestigung der Filterpatrone am Boden des Wasserbehälters im unmittelbaren Bereich des Abflußanschlußes erübrigen sich andere, z. B. seitlich am Wasserbehälter angebrachte Halterungsvorrichtungen. Bei entfernter Filterpatrone ist somit der Wasserbehälter zur Reinigung oder sonstiger Handhabung frei zugänglich.Fixing elements of the filter cartridge can act on such holding elements, so that the filter cartridge is fixed in the water tank by positive locking. By attaching the filter cartridge to the bottom of the water tank in the immediate area of the drain connection, other, z. B. laterally attached to the water tank. When the filter cartridge is removed, the water tank is freely accessible for cleaning or other handling.
In einer vorteilhaften Ausführungsform der Erfindung weisen die Halteelemente am Boden des Wassebehälters Durchlässe auf. Dies ermöglicht ein Absaugen des Wasser auch ohne Filterpatrone, wobei durch diese Durchlässe Wasser unmittelbar in den Abfluß des Behälterbodens gelangt. Dementsprechend sollten sich die Durchlässe in den Halteelementen am Behälterboden möglichst nahe am Bodenniveau befinden, um eine möglichst vollständige Entleerung des Wasserbehälters beim Betrieb ohne Filterpatrone zu ermöglichen.In an advantageous embodiment of the invention, the holding elements have passages at the bottom of the water container. This enables the water to be drawn off even without a filter cartridge, water passing directly through these passages into the drain of the container bottom. Accordingly, the passages in the holding elements on the tank bottom should be as close as possible to the floor level in order to enable the water tank to be emptied as completely as possible when operating without a filter cartridge.
In einer Weiterbildung der Erfindung werden die Halteelemente als ringförmiger Stecksockel ausgebildet. Dieser Stecksockel kann beispielsweise in Form eines Ringstegs mit entsprechenden Bodenbohrungen oder auch in Form von ringförmig angeordneten Stiften ausgebildet sein. In diese ringförmige Anordnung wird vorzugsweise ein ebenfalls ringförmiger Innenbund der Filterpatrone eingesteckt. Mit Hilfe dieses Innenbunds der vorteilhafter Weise zusätzlich mit einer Dichtung versehen wird, kann somit innerhalb des Stecksockels im Filterbetrieb der für den filterfreien Betrieb gedachte Durchlaß zum Behälterabfluß geschlossen und abgedichtet werden.In a development of the invention, the holding elements are designed as an annular plug-in base. This plug-in base can be designed, for example, in the form of an annular web with corresponding bottom bores or also in the form of pins arranged in a ring. A likewise annular inner collar of the filter cartridge is preferably inserted into this annular arrangement. With the help of this inner collar, which is advantageously additionally provided with a seal, the passage to the container drain intended for filter-free operation can thus be closed and sealed within the plug-in base during filter operation.
Diese Dichtung wird in einer weiteren vorteilhaften Weiterbildung der Erfindung als Axialdichtung ausgebildet, die den Innnenbund gegenüber dem Behälterboden dichtet.In a further advantageous development of the invention, this seal is designed as an axial seal, which seals the inner collar against the bottom of the container.
Falls in einer besonderen Ausführungsform ein zusätzliches Sieb zum Zurückhalten von Partikeln, beispielsweise von Filtermaterial im Abflußbereich der Falleitung vorgesehen ist, so kann dies beispielsweise dadurch fixiert werden, daß ein entsprechender scheibenförmiger Kragen zwischen die genannte Axialdichtung und den Behälterboden hineinragt und durch das Aufstecken der Filterpatrone über den Innenbund und die Axialdichtung am Behälterboden fixiert wird.If, in a special embodiment, an additional sieve is provided for retaining particles, for example filter material, in the drainage area of the downpipe, this can be fixed, for example, by a corresponding disc-shaped collar protruding between the axial seal mentioned and the bottom of the container and by inserting the filter cartridge is fixed to the bottom of the container via the inner collar and the axial seal.
In einer Weiterbildung der Erfindung wird zudem ein äußerer ringförmiger Außenbund an der Filterpatrone vorgesehen, der den Stecksockel außen umgreift. Hierdurch ist es möglich, daß das eigentliche Filterbett in radialer Richtung über den Stecksockel hinausragend oberhalb des Stecksockels beginnt, wobei dennoch eine tiefe Ansaughöhe des Wassers gewährleistet ist. Eine tiefe Ansaughöhe ist notwendig, um den Wasserbehälter im Filterbetrieb möglichst weitgehend zu entleeren.In a further development of the invention, an outer annular outer collar is also provided on the filter cartridge, which surrounds the outside of the plug-in base. This makes it possible that the actual filter bed in the radial direction over the The plug-in base starts protruding above the plug-in base, but a low suction height of the water is still guaranteed. A low suction height is necessary in order to empty the water tank as much as possible during filter operation.
Hierzu kann der Außenbund beispielsweise entsprechende bodennahe Durchlässe aufweisen oder auch in einem bestimmten Abstand zum Behälterboden enden. Im letztgenannten Fall wird entlang dem gesamten Umfang des Außenbunds ein Ansaugspalt offengelassen, durch den der Behälter im Filterbetrieb entleert wird.For this purpose, the outer collar can, for example, have corresponding passages near the bottom or also end at a certain distance from the tank bottom. In the latter case, a suction gap is left open along the entire circumference of the outer collar, through which the container is emptied during filter operation.
Zur definierten Einstellung dieses Ansaugspaltes empfiehlt es sich dabei, einen Anschlag zur Begrenzung der Einstecktiefe der Filterpatrone auf den Stecksockel vorzusehen. Dieser Anschlag kann beispielsweise in Form eines radial vom Innenbund abstehenden VorSprungs realisiert werden, der auf dem Stecksockel anschlägt.For a defined setting of this suction gap, it is advisable to provide a stop to limit the depth of insertion of the filter cartridge on the plug-in base. This stop can be realized, for example, in the form of a projection which projects radially from the inner collar and which abuts on the plug-in base.
Der Außenbund kann zudem mit Klemmelementen versehen werden, mittels denen er am Stecksockel verklemmt werden kann. Derartige Klemmelemente können beispielsweise in Form von Klemmrippen ausgebildet werden, so daß zwischen den Klemmrippen der Durchgang des angesaugten Wassers zum Filterbett hin gewährleistet bleibt.The outer collar can also be provided with clamping elements, by means of which it can be clamped on the plug-in base. Such clamping elements can be designed, for example, in the form of clamping ribs, so that the passage of the sucked-in water to the filter bed remains ensured between the clamping ribs.
Wie oben bereits angeführt, wird vorzugsweise ein Filtergemisch aus Aktivkohle und ggf. aus Ionentauscherharz verwendet. Um dieses Filtergemisch im vorgesehenen Bereich der Filterpatrone zu halten, wird vorzugsweise eine Begrenzung aus porösen Filterschichten, beispielsweise aus porösem Polyethylen vorgesehen. In Frage kämen jedoch auch andere mechanische Rückhaltesysteme, z. B. entsprechende Siebeinsätze. In einer besonderen Weiterbildung der Erfindung wird zudem ein Längenausgleich zum Einsatz der Filterpatrone unterschiedlich hohen Wasserbehältern vorgesehen. Ein derartiger Längenausgleich kann in einer besonders einfachen Ausführungsform in Form eines Verlängerungsstabs bzw. eines Verlängerungsrohrs ausgebildet werden.As already mentioned above, a filter mixture of activated carbon and possibly of ion exchange resin is preferably used. In order to keep this filter mixture in the intended area of the filter cartridge, a boundary made of porous filter layers, for example made of porous polyethylene, is preferably provided. However, other mechanical restraint systems, e.g. B. corresponding sieve inserts. In a special development of the invention, length compensation is also provided for using the filter cartridge in water containers of different heights. In a particularly simple embodiment, such a length compensation can be designed in the form of an extension rod or an extension tube.
Besonders vorteilhaft ist es, diesen Längenausgleich an dem Deckel der Filterpatrone zu befestigen. Somit kann bei der Fertigung einer Filterpatrone für unterschiedlich hohe Wasserbehälter die Filterpatrone stets gleich ausgebildet werden, wobei ein Deckel mit dem jeweils notwendigen Längenausgleich verwendet wird. Vorteilhafterweise wird der Deckel austauschbar ausgebildet, beispielsweise mit Hilfe von Rastverbindungen. In diesem Fall kann der Längenausgleich durch Aufdrücken des mit dem passenden Längenausgleich versehenen Deckels bei der Montage der Filterpatrone erfolgen.It is particularly advantageous to attach this length compensation to the cover of the filter cartridge. Thus, when manufacturing a filter cartridge for water containers of different heights, the filter cartridge can always be of the same design, a cover with the length compensation required in each case being used. The lid is advantageously designed to be replaceable, for example with the aid of snap-in connections. In this case, the length compensation can be done by pressing on the cover with the appropriate length compensation when installing the filter cartridge.
In einer weiteren vorteilhaften Ausführungsform der Erfindung wird eine Vorrichtung zur Kennzeichnung des Ablaufdatums des Filters an der Filterpatrone angebracht. So kann der Filter bei der Montage bereits so gekennzeichnet werden, daß jederzeit durch Sichtkontrolle kontrollierbar ist, ob ein Filteraustausch erforderlich wird. Bevorzugt wird diese Datumseinstellung an dem Deckel so angebracht, daß durch Drehen des Deckels die Datumskennzeichnung verstellt wird. Dies ermöglicht insbesondere auch die Einstellung dieser Datumskennzeiσhnung durch Drehen des Deckels über den daran befestigten Längenausgleich. Insofern ist die Einstellung auch dann einfach zu handhaben, wenn der Deckel der Filterpatrone sich weit im Innern des Wasserbehälters befindet.In a further advantageous embodiment of the invention, a device for identifying the expiry date of the filter is attached to the filter cartridge. The filter can already be marked during assembly so that it can be checked at any time by visual inspection whether a filter replacement is necessary. This date setting is preferably attached to the cover in such a way that the date marking is adjusted by turning the cover. In particular, this also enables the setting of this date marking by turning the cover over the length compensation attached to it. In this respect, the setting is easy to use even when the lid of the filter cartridge is located far inside the water tank.
Auch andere Maßnahmen zur Kennzeichnung eines fälligen Filterwechsels sind bei der Erfindung möglich, beispielsweise mit Hilfe eines Wasserzählers, der den durch den Filter geflossenen Volumenstrom mißt.Other measures for identifying a due filter change are also possible with the invention, for example with the help of a water meter, which measures the volume flow flowing through the filter.
In einer weiteren vorteilhaften Ausführungsform der Erfindung ist die Filterpatrone mit einer Umfangsverjüngung von oben nach unten versehen. Eine derartige Ausbildung der Filterpatrone erleichtert das Aufschwemmen des Filtergemischs, wodurch zusätzlich die Gefahr der Verdichtung des Filterbetts weiter reduziert wird.In a further advantageous embodiment of the invention, the filter cartridge is provided with a circumferential taper from top to bottom. Such a design of the filter cartridge makes it easier to float the filter mixture, which further reduces the risk of the filter bed becoming compressed.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird anhand der Figuren nachfolgend näher erläutert.An embodiment of the invention is shown in the drawing and is explained in more detail below with reference to the figures.
Im einzelnen zeigenShow in detail
Fig. 1 einen schematischen Längsschnitt durch eine Filterpatrone in einem Wasserbehälter,1 shows a schematic longitudinal section through a filter cartridge in a water container,
Fig. 2 eine Draufsicht auf einen Gegenstand gemäß Fig. 1,2 is a plan view of an object according to FIG. 1,
Fig. 3 eine Ausschnittsvergrößerung aus Fig. 1 im Anschlußbereich des Behälterbodens,3 shows an enlarged detail from FIG. 1 in the connection area of the container bottom,
Fig. 4 einen schematischen Längsschnitt eines weiteren Ausführungsbeispiels undFig. 4 is a schematic longitudinal section of a further embodiment and
Fig. 5 eine Draufsicht auf das Ausführungsbeispiel gemäß Fig. 4.5 is a top view of the embodiment of FIG. 4.
Der Wasserbehälter 1 gemäß Fig. 1 umfaßt eine Filterpatrone 2 mit einem Filtergemisch 3, beispielsweise aus Aktivkohle und Ionentauscherharz. Die Wandung 4 der Filterpatrone 2 ist von oben nach unten hin mit verjüngendem Querschnitt ausgebildet. was das Aufschwemmen des Filtergemisch 3 erleichtert. Ein Fallrohr 5 ist im Innern der Filterpatrone 2 im Wesentlichen vertikal angeordnet und mit einem Filteraufsatz 6 aus porösem Material, beispielsweise Polyäthylen, abgeschlossen. Die gesamte Filterpatrone 2 ist mit einem Deckel 7 verschlossen, der einen nicht näher erkennbaren Drehmechanismus zur Markierung eines Datums aufweist.1 comprises a filter cartridge 2 with a filter mixture 3, for example made of activated carbon and ion exchange resin. The wall 4 of the filter cartridge 2 is formed with a tapering cross section from top to bottom. which facilitates the floating of the filter mixture 3. A downpipe 5 is arranged essentially vertically in the interior of the filter cartridge 2 and is closed off with a filter attachment 6 made of porous material, for example polyethylene. The entire filter cartridge 2 is closed with a cover 7, which has a rotary mechanism (not recognizable in more detail) for marking a date.
In Fig. 2 ist erkennbar, daß der Deckel 7 ein Fenster 8 umfaßt, durch das hindurch eine Markierungsscheibe 9 sichtbar ist. Durch Drehen des Deckels 7 läßt sich somit die im Fenster 8 sichtbare Markierung der Markierungsscheibe 9 verstellen.In Fig. 2 it can be seen that the cover 7 comprises a window 8 through which a marking disc 9 is visible. By turning the cover 7, the marking of the marking disk 9 visible in the window 8 can thus be adjusted.
Der Anschluß der Filterpatrone 2 am Behälterboden 10 ist vor allem in Fig. 3 erkennbar. Am Behälterbσden 10 ist zentrisch um einen Abfluß 11 ein Stecksockel 12 angeformt. Innerhalb des Stecksockels 12 ist ein Siebeinsatz 13 mit einem Ringkragen 14 eingelegt.The connection of the filter cartridge 2 to the container bottom 10 can be seen above all in FIG. 3. A plug-in base 12 is integrally formed on the container bottom 10 around a drain 11. A sieve insert 13 with an annular collar 14 is inserted within the plug base 12.
Der Siebeinsatz 13 ist von einem Innenbund 15 umschlossen, der einen radial nach außen ragenden Anschlag 16 zur Begrenzung der Einstecktiefe aufweist. Am Innenbund 15 ist eine Axialdichtung 17 befestigt, d. h. vorliegend in eine entsprechende flache Ringnut eingelegt. Die Axialdichtung 17 dichtet den Innenbund 15 über den Ringkragen 14 zum Behälterboden 10 hin ab. Der Innenbund 15 geht an seiner Oberseite über eine Schulter 18 in das Fallrohr 5 über.The sieve insert 13 is enclosed by an inner collar 15 which has a radially outwardly projecting stop 16 for limiting the insertion depth. On the inner collar 15, an axial seal 17 is attached, i. H. in the present case inserted into a corresponding flat annular groove. The axial seal 17 seals the inner collar 15 over the ring collar 14 to the container bottom 10. The inner collar 15 merges into the downpipe 5 on its upper side via a shoulder 18.
Oberhalb des Anschlags 16 ist ein ringförmiger Filtereinsatz 19 erkennbar, auf dem das Filtergemisch 3 aufliegt.An annular filter insert 19 on which the filter mixture 3 rests can be seen above the stop 16.
Die Umfangswand 20 geht in ihrer unteren Verlängerung in einen Außenbund 21 über, der aufgrund der durch den Anschlag 16 vorgegebenen Einstecktiefe einen Ansaugspalt 22 im Bereich des Behälterbodens 10 offenläßt. Der Durchmesser des Außenbunds 21 ist so bemessen, daß zwischen dem Außenbund 21 und dem radial vom Innenbund abstehenden Anschlag 16 ein Durchlaß 23 zum Filtereinsatz 19 offen bleibt.In its lower extension, the peripheral wall 20 merges into an outer collar 21 which, due to the insertion depth specified by the stop 16, leaves an intake gap 22 in the region of the container bottom 10. The diameter of the Outer collar 21 is dimensioned such that a passage 23 to the filter insert 19 remains open between the outer collar 21 and the stop 16 projecting radially from the inner collar.
Der Außenbund 21 ist weiterhin über Klemmrippen 24 auf dem Stecksockel 12 festgeklemmt.The outer collar 21 is also clamped on the plug base 12 by means of clamping ribs 24.
Die Darstellung gemäß den Figuren 4 und 5 entspricht im Wesentlichen dem Gegenstand der Figuren 1 und 2. Vorliegend ist jedoch ein Wasserbehälter 1* von erheblich größerer Höhe vorhanden. In den Wasserbehälter 1' wird die gleiche Filterpatrone 2 wie im vorgenannten Ausführungsbeispiel eingesetzt. Lediglich der Deckel 7' ist insofern anderweitig ausgebildet, daß er mit einer Stabverlängerung 25 versehen ist . Da die Deckel 7 , 7 ' einfach auf die Filterpatrone mit Hilfe einer Verrastung befestigt werden, ist das Anbringen der Stabverlängerung 25 besonders einfach vorzunehmen.The illustration according to FIGS. 4 and 5 essentially corresponds to the subject of FIGS. 1 and 2. In the present case, however, there is a water tank 1 * of considerably greater height. In the water tank 1 'the same filter cartridge 2 is used as in the aforementioned embodiment. Only the lid 7 'is otherwise designed in that it is provided with a rod extension 25. Since the covers 7, 7 'are simply attached to the filter cartridge with the aid of a catch, the attachment of the rod extension 25 is particularly simple.
Mit Hilfe der Stabverlängerung 25 läßt sich zum einen die Filterpatrone 2 problemlos von oben in den Wasserbehälter 1' einführen und auf den Stecksockel 12 aufstecken sowie zum andern gegebenenfalls über einen entsprechenden, nicht näher dargestellten, Behälterdeckel an der Oberseite zusätzlich fixieren.With the help of the rod extension 25, on the one hand, the filter cartridge 2 can easily be inserted into the water tank 1 'from above and plugged onto the plug-in base 12 and, on the other hand, additionally fixed on the top, if appropriate, via a corresponding, not shown, tank lid.
Auch die Deckelmarkierung läßt sich über die Stabverlängerung 25 bequem betätigen, indem wie im vorgenannten Ausführungsbeispiel der Deckel 7' so weit gedreht wird, bis in seinem Fenster 8 ' die korrekte Markierung der Markierungsscheibe 9' erkennbar wird.The lid marking can also be conveniently actuated via the rod extension 25, as in the aforementioned exemplary embodiment the lid 7 'is rotated until the correct marking of the marking disk 9' can be seen in its window 8 '.
Die Funktionsweise der erfindungsgemäßen Vorrichtung vollzieht sich in folgender Weise.The device according to the invention functions in the following manner.
Über den Abfluß 11 wird von dem entsprechenden Getränkeautomaten die benötigte Wassermenge angesaugt. Dies führt zu einem Wasserfluß aus dem Innern des Behälters 1 durch den Ansaugspalt 22 zwischen dem Außenbund 21 und dem Behälterboden 10. Das Wasser strömt innerhalb des Außenbunds 21 zwischen den Klemmrippen 24 nach oben zum Filtereinsatz 19 und tritt durch diesen hindurch.The required amount of water is sucked in via the drain 11 from the corresponding vending machine. This leads to a water flow from the inside of the container 1 through the suction gap 22 between the outer collar 21 and the container bottom 10. The water flows inside the outer collar 21 between the clamping ribs 24 upwards to the filter insert 19 and passes through it.
Der Filtereinsatz 19 dient ebenso wie der Filteraufsatz 6, der aus dem gleichen Material bestehen kann, dazu, das Filtergemisch 3 im Innern der Filterpatrone 2 zu halten.The filter insert 19, like the filter attachment 6, which can consist of the same material, serves to hold the filter mixture 3 inside the filter cartridge 2.
Das angesaugte Wasser strömt in der Folge im Aufström nach oben durch das Filtergemisch 3 und wird hierbei gefiltert sowie gegebenenfalls bei Vorhandensein von Ionenaustauscherharz enthärtet.The sucked-in water then flows upwards through the filter mixture 3 and is filtered in the process and softened if necessary in the presence of ion exchange resin.
Durch den Filteraufsatz 6 gelangt das Wasser in das Fallrohr 5, über das es nach unten strömen kann, wo es nach Durchtritt durch den Siebeinsatz 13 in den /Abfluß 11 gelangt und für die GetränkeZubereitung zur Verfügung steht.Through the filter attachment 6, the water enters the downpipe 5, through which it can flow downwards, where it passes into the drain 11 after passing through the strainer insert 13 and is available for the preparation of beverages.
Damit der beschriebene Strömungsvorgang einwandfrei funktioniert, muß der Bereich innerhalb des Außenbundes, der durch den Ansaugspalt 22 mit dem Wasser des Behälters 1 in Verbindung steht, zuverlässig gegenüber dem Abfluß 11 abgedichtet sein. Dies wird vorliegend durch die Axialdichtung 17 in Verbindung mit dem Innenbund 15 erreicht.For the flow process described to function properly, the area within the outer collar, which is connected to the water of the container 1 through the suction gap 22, must be reliably sealed off from the drain 11. This is achieved in the present case by the axial seal 17 in connection with the inner collar 15.
Hier ist hinzufügen, daß vorteilhafterweise der Stecksockel 12 wenigstens im Bereich des Behälterbodens 10 Durchlässe aufweist. Der Stecksockel 12 kann auch aus einzelnen nach oben stehenden Rippen bestehen, da der Innenabschluß über den Innenbund 15 und die Axialdichtung 17 erfolgt.It should be added here that the plug-in base 12 advantageously has 10 passages at least in the region of the container bottom. The plug-in base 12 can also consist of individual upstanding ribs, since the inner closure takes place via the inner collar 15 and the axial seal 17.
Der Stecksockel 12 muß im Bereich des Behälterbodens wasserdurchlässig sein, sofern der Wasserbehälter 1 auch ohne Filterpatrone 2 verwendet wird und eine vollständige Entleerung des Behälters 1 stattfinden soll. Bei entfernter Filterpatrone 2 fließt das Wasser des Behälterbodens unmittelbar durch die Durchlässe 26 in den 7Abfluß 11.The plug-in base 12 must be permeable to water in the region of the container bottom, provided that the water container 1 is also used without a filter cartridge 2 and is complete Emptying of the container 1 should take place. With the filter cartridge 2 removed, the water in the bottom of the container flows directly through the passages 26 into the drain 11.
Ein Betrieb ohne Filterpatrone 2 kann sinnvoll sein, wenn diese aufgrund der Wasserqualität nicht erforderlich ist oder wenn der Betrieb bei fehlender Austauschfilterpatrone 2 nicht unterbrochen werden soll, wobei der entsprechende Getränkeautomat zeitweise ohne Wasseraufbereitung betrieben wird.Operation without a filter cartridge 2 can be useful if this is not necessary due to the water quality or if the operation should not be interrupted if there is no replacement filter cartridge 2, the corresponding drinks machine being operated temporarily without water treatment.
Über die Markierung 7, 8, 9 kann der fällige Austausch der Filterpatrone 2 problemlos eingestellt werden, so daß der Austausch zum entsprechenden Zeitpunkt nicht vergessen wird.The due replacement of the filter cartridge 2 can be easily set via the markings 7, 8, 9, so that the replacement is not forgotten at the appropriate time.
Die beschriebene Filterpatrone 2 im Wasserbehälter 1 bietet die verschiedenen, oben angeführten Vorteile. Das Filtergemisch 3 kann nicht verdichtet werden, da es durch den Aufström des Wassers regelmäßig aufgeschwemmt wird. Der Einsatz der Filterpatrone 2 ist durch einfaches Aufstecken auf den Stecksockel 12 ohne weitere Verbindungsanschlüsse möglich. Das Anordnen der Filterpatrone 2 im Innern des Wasserbehälters 1 macht die ganze Vorrichtung unempfindlich gegenüber etwaiger Leckage am Filteranschluß.The described filter cartridge 2 in the water tank 1 offers the various advantages mentioned above. The filter mixture 3 cannot be compressed because it is regularly suspended by the inflow of water. The filter cartridge 2 can be used by simply plugging it onto the plug base 12 without any further connection connections. The arrangement of the filter cartridge 2 inside the water container 1 makes the entire device insensitive to any leakage at the filter connection.
Durch den bodenseitigen Abfluß 11, der durch den ebenfalls bodenseitigen Anschluß der Filterpatrone 2 ermöglicht wird, ist die Umstellung auf einen filterlosen Betrieb des Getränkeautomaten besonders einfach durch einfaches Abziehen der Filterpatronen 2 möglich. Due to the bottom-side drain 11, which is also made possible by the bottom-side connection of the filter cartridge 2, the changeover to a filter-free operation of the vending machine is particularly simple by simply removing the filter cartridges 2.
1 Wasserbehälter1 water tank
2 Filterpatrone2 filter cartridges
3 Filtergemisch3 filter mixture
4 Wandung4 wall
5 Fallrohr5 downpipe
6 Filteraufsatz6 filter attachment
7 Deckel7 lids
8 Fenster8 windows
9 Markierungsscheibe9 marking disc
10 Behälterboden10 container bottom
11 Abfluß11 drain
12 Stecksockel12 sockets
13 Siebeinsatz13 sieve insert
14 Ringkragen14 ring collar
15 Innenbund15 inner waistband
16 Anschlag16 stop
17 Axialdichtung17 axial seal
18 Schulter18 shoulder
19 Filtereinsatz19 filter insert
20 Umfangswand20 peripheral wall
21 Außenbund21 outer waistband
22 Ansaugspalt22 suction gap
23 Durchlaß23 passage
24 Klemmrippen24 clamping ribs
25 Stabverlängerung25 rod extension
26 Durchlaß 26 passage

Claims

Ansprüche: Expectations:
1. Wasserbehälter (1) mit Filterpatrone (2), die im Innern des Wasserbehälters (1) angeordnet ist, dadurch gekennzeichnet, daß die Wassereintrittsöffnung (22) der Filterpatrone (2) unten angeordnet ist, wobei ein Durchgang für das Wasser durch die Filterpatrone (2) im Aufström und eine absteigende Falleitung (5) zur Führung des Wassers zum unten befindlichen Abfluß (11) des Wasserbehälters (1) vorgesehen ist.1. Water tank (1) with filter cartridge (2) which is arranged inside the water tank (1), characterized in that the water inlet opening (22) of the filter cartridge (2) is arranged below, with a passage for the water through the filter cartridge (2) in the upstream and a descending down pipe (5) for guiding the water to the drain (11) of the water tank (1) located below.
2. Wasserbehälter nach Anspruch 1 dadurch gekennzeichnet, daß die absteigende Leitung (5) innerhalb der Filterpatrone angeordnet ist.2. Water container according to claim 1, characterized in that the descending line (5) is arranged within the filter cartridge.
3. Wasserbehälter nach einem der vorgenannten Ansprüche dadurch gekennzeichnet, daß ein vom Boden des Behälters (1) abstehendes Halteelement ( 12 ) zur Fixierung der Filterpatrone vorgesehen ist.3. Water container according to one of the preceding claims, characterized in that a holding element (12) projecting from the bottom of the container (1) is provided for fixing the filter cartridge.
4. Wasserbehälter nach einem der vorgenannten Ansprüche dadurch gekennzeichnet, daß das Halteelement (12) Durchlässe (26) aufweist.4. Water container according to one of the preceding claims, characterized in that the holding element (12) has passages (26).
5. Wasserbehälter nach einem der vorgenannten Ansprüche dadurch gekennzeichnet, daß ein Innenbund (15) der Filterpatrone (2) zur Trennung des Abflusses (11) vom Zufluß (22) der Filterpatrone (2) vorgesehen ist.5. Water tank according to one of the preceding claims, characterized in that an inner collar (15) of the filter cartridge (2) for separating the drain (11) from the inflow (22) of the filter cartridge (2) is provided.
6. Wasserbehälter nach einem der vorgenannten Ansprüche dadurch gekennzeichnet, daß eine Dichtung (17) am Innenbund (15) vorgesehen ist. 6. Water tank according to one of the preceding claims, characterized in that a seal (17) is provided on the inner collar (15).
7. Wasserbehälter nach einem der vorgenannten Ansprüche dadurch gekennzeichnet, daß ein Außenbund (21) vorgesehen ist.7. Water tank according to one of the preceding claims, characterized in that an outer collar (21) is provided.
8. Wasserbehälter nach einem der vorgenannten Ansprüche dadurch gekennzeichnet, daß ein Anschlag (16) zur Begrenzung der Einstecktiefe der Filterpatrone (2) auf dem Stecksockel (12) vorgesehen ist.8. Water container according to one of the preceding claims, characterized in that a stop (16) for limiting the insertion depth of the filter cartridge (2) is provided on the plug-in base (12).
9. Wasserbehälter nach einem der vorgenannten Ansprüche dadurch gekennzeichnet, daß Klemmelemente (24) zur Verklemmung der Filterpatrone (2) am Stecksockel (12) vorgesehen sind.9. Water container according to one of the preceding claims, characterized in that clamping elements (24) for clamping the filter cartridge (2) on the plug-in base (12) are provided.
10. Wasserbehälter nach einem der vorgenannten Ansprüche dadurch gekennzeichnet, daß ein Längenausgleich (25) für unterschiedlich hohe Wasserbehälter (1, 1') vorgesehen ist.10. Water tank according to one of the preceding claims, characterized in that a length compensation (25) for water tanks of different heights (1, 1 ') is provided.
11. Wasserbehälter nach einem der vorgenannten Ansprüche dadurch gekennzeichnet, daß der Längenausgleich (25) am Deckel (7) der Filterpatrone (2) angebracht ist.11. Water container according to one of the preceding claims, characterized in that the length compensation (25) on the lid (7) of the filter cartridge (2) is attached.
12. Wasserbehälter nach einem der vorgenannten Ansprüche dadurch gekennzeichnet, daß der Deckel (7) der Filterpatrone (2) austauschbar ist.12. Water container according to one of the preceding claims, characterized in that the cover (7) of the filter cartridge (2) is interchangeable.
13. Wasserbehälter nach einem der vorgenannten Ansprüche dadurch gekennzeichnet, daß die Filterpatrone (2) mit einer Querschnittsverjüngung von oben nach unten ausgebildet ist.13. Water container according to one of the preceding claims, characterized in that the filter cartridge (2) is formed with a cross-sectional taper from top to bottom.
14. Filterpatrone dadurch gekennzeichnet, daß sie nach einem der vorgenannten Ansprüche ausgebildet ist.14. Filter cartridge, characterized in that it is designed according to one of the preceding claims.
15. Getränkeautomat, dadurch gekennzeichnet, daß ein Wasserbehälter (1) mit Filterpatrone (2) nach einem der vorgenannten Ansprüche vorhanden ist. 15. Vending machine, characterized in that a water container (1) with a filter cartridge (2) is present according to one of the preceding claims.
EP98941263A 1997-07-04 1998-07-03 Water container with filter cartridge Withdrawn EP0996503A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03003807A EP1340442B2 (en) 1997-07-04 1998-07-03 Beverage dispenser with water container and filter cartridge

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19728631 1997-07-04
DE19728631 1997-07-04
PCT/DE1998/001842 WO1999001220A1 (en) 1997-07-04 1998-07-03 Water container with filter cartridge

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP03003807A Division EP1340442B2 (en) 1997-07-04 1998-07-03 Beverage dispenser with water container and filter cartridge

Publications (1)

Publication Number Publication Date
EP0996503A1 true EP0996503A1 (en) 2000-05-03

Family

ID=7834668

Family Applications (2)

Application Number Title Priority Date Filing Date
EP98941263A Withdrawn EP0996503A1 (en) 1997-07-04 1998-07-03 Water container with filter cartridge
EP03003807A Expired - Lifetime EP1340442B2 (en) 1997-07-04 1998-07-03 Beverage dispenser with water container and filter cartridge

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP03003807A Expired - Lifetime EP1340442B2 (en) 1997-07-04 1998-07-03 Beverage dispenser with water container and filter cartridge

Country Status (5)

Country Link
US (1) US6383375B1 (en)
EP (2) EP0996503A1 (en)
DE (2) DE19827623A1 (en)
HK (1) HK1057981A1 (en)
WO (1) WO1999001220A1 (en)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6042729A (en) * 1998-02-18 2000-03-28 Chau; Yiu Chau Regeneration of water treatment media
US20070045170A1 (en) * 2003-07-10 2007-03-01 Andreas Wawrla Filter cartridge
DE10359443A1 (en) * 2003-07-10 2005-02-10 Aquis Wasser-Luft-Systeme Gmbh, Lindau, Zweigniederlassung Rebstein filter cartridge
ES2277226T3 (en) * 2003-07-17 2007-07-01 Saeco Ipr Limited A FILTER CARTRIDGE FOR CAFETERAS WATER CONTAINERS.
DE102004002005A1 (en) * 2004-01-14 2005-08-11 Schifferle, René Portion capsule with ground coffee for making a coffee beverage
DE102004049877B4 (en) 2004-10-13 2008-03-27 Brita Gmbh Filter cartridge and seat element for a filter cartridge
DE102004049876C5 (en) * 2004-10-13 2010-04-29 Brita Gmbh filter cartridge
PL1731067T3 (en) * 2005-06-09 2012-07-31 Aquis Wasser Luft Systeme Gmbh Lindau Water tank
EP1752421A1 (en) * 2005-08-12 2007-02-14 Aquis Wasser-Luft-Systeme GmbH, Lindau Device for Water Treatment
DE102006005780A1 (en) * 2006-02-03 2007-08-16 Wp Engineering Ltd. Filter cartridge for inserting into a water tank of beverage machine, has a housing, an ion exchanger for water softening arranged inside of the housing, an inlet for supplying water from the water tank into the housing and, an outlet
DE102006006932A1 (en) * 2006-02-14 2007-08-30 Aquis Wasser-Luft-Systeme Gmbh, Lindau, Zweigniederlassung Rebstein Filter cartridge for insertion in a water storage tank
DE102006006933A1 (en) * 2006-02-14 2007-08-16 Aquis Wasser-Luft-Systeme Gmbh, Lindau, Zweigniederlassung Rebstein Filter cartridge for insertion in a water storage tank
DE102006006931A1 (en) 2006-02-14 2007-08-23 Aquis Wasser-Luft-Systeme Gmbh, Lindau, Zweigniederlassung Rebstein Filter cartridge for insertion in a water storage tank
DE202006019884U1 (en) * 2006-04-05 2008-02-07 Aquis Wasser-Luft-Systeme Gmbh, Lindau, Zweigniederlassung Rebstein Water filter cartridge system with combined Verschneidideventiltechnik in the candle and adjusting device in the head
WO2007115793A1 (en) 2006-04-05 2007-10-18 Aquis Wasser-Luft-Systeme Gmbh, Lindau Water filter cartridge system having a combined blending valve system in the candle and adjusting device in the head
EP1867606A1 (en) * 2006-06-14 2007-12-19 Elfo AG Water filter cartridge for a water tank
EP2433906B1 (en) 2006-08-10 2016-06-15 Aquis Wasser-Luft-Systeme GmbH, Lindau Water filter cartridge
DE102006050302B4 (en) * 2006-10-23 2017-05-24 Aquis Wasser-Luft-Systeme Gmbh, Lindau, Zweigniederlassung Rebstein Tank, filter cartridge and device with tank
US8674462B2 (en) 2007-07-25 2014-03-18 Infineon Technologies Ag Sensor package
US20090081089A1 (en) * 2007-09-26 2009-03-26 Dayman Jeffrey G Fluid reservoir and receiver assembly
EP2095749A1 (en) * 2008-02-28 2009-09-02 Nestec S.A. Beverage machine with a water tank
DE102009025437A1 (en) 2008-06-27 2009-12-31 Aquis Wasser-Luft-Systeme Gmbh, Lindau, Zweigniederlassung Rebstein Water tank and thus connectable, separately formed filter cartridge connection element
PT2168469E (en) * 2008-09-25 2013-08-22 Nestec Sa Filter cartridge for a beverage machine and beverage machine with a filter cartridge
ITTO20080783A1 (en) * 2008-10-23 2010-04-24 Sgl Italia S R L Con Unico Socio TOGETHER WITH A TANK FOR A COFFEE MACHINE
DE102010023612A1 (en) * 2009-06-15 2010-12-16 Aquis Wasser-Luft-Systeme Gmbh, Lindau, Zweigniederlassung Rebstein Tea preparation device with a water tank and a water filter with hydrogen-based cation exchanger located therein
US20120241352A1 (en) 2011-03-22 2012-09-27 Pramanik Pranabes K Articles formed from a multi-layer sheet structure
ITPD20130051A1 (en) * 2013-03-01 2014-09-02 Laica Spa FILTER AND TANK FOR MACHINE FOR THE PREPARATION OF HOT DRINKS
ITPD20130326A1 (en) 2013-11-28 2015-05-29 Laica Spa FILTERING CARTRIDGE FOR MACHINE FOR DRINK PREPARATION
EP2979593B1 (en) * 2014-08-01 2017-10-18 Laica S.p.A. Filter cartridge for machine for the preparation of beverages
PL3383798T3 (en) * 2015-12-04 2024-01-29 Koninklijke Philips N.V. Filter assembly for use in a fluid container of a domestic appliance
CN107997579B (en) * 2016-11-30 2023-11-28 佛山市顺德区美的饮水机制造有限公司 Drainage joint, drainage assembly and drinking water equipment
CN110624305A (en) * 2018-06-22 2019-12-31 杭州科百特过滤器材有限公司 Filter element and installation method of filter comprising same
WO2021013349A1 (en) 2019-07-24 2021-01-28 Alfred Kärcher SE & Co. KG Water treatment cartridge for a hot fluid cleaning device, hot fluid cleaning device, and method for treating water
WO2021094014A1 (en) * 2019-11-15 2021-05-20 Brita Gmbh Filtration system with a filter cartridge and a seat element for the filter cartridge

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1579158A (en) * 1923-01-08 1926-03-30 Robert H Smilie Water filter
US3167399A (en) * 1962-05-08 1965-01-26 Universal Oil Prod Co Radial flow reactor
US3392838A (en) 1966-05-04 1968-07-16 American Mach & Foundry Filter for fluids
US3746171A (en) * 1971-07-21 1973-07-17 J Thomsen Filter assembly
US4147631A (en) * 1977-09-23 1979-04-03 Teledyne Industries, Inc. Water control and distribution apparatus
US4504389A (en) * 1983-01-17 1985-03-12 Associated Mills, Inc. Water filter
US4623467A (en) * 1984-06-25 1986-11-18 International Manufacturing And Water Vending Company Water purifying and vending apparatus
US4626350A (en) * 1985-04-01 1986-12-02 Reid Roger P Filter cartridge
DE3522966C1 (en) 1985-06-27 1990-04-19 Erich 5412 Ransbach-Baumbach Alhäuser Filter cartridge for improving the quality of drinking water
US4814078A (en) * 1987-09-15 1989-03-21 Associated Mills Inc. Water filter cartridge
US5024764A (en) † 1989-03-17 1991-06-18 Ametek, Inc. Method of making a composite filter
DE3916888A1 (en) † 1989-05-24 1990-11-29 Faudi Feinbau Filter candle element - has spring on one side of the filter separation wall, allowing in-situ adjustment of compression force
US5114570A (en) * 1989-08-14 1992-05-19 Teledyne Industries Inc. Water filter cartridge
US5112477A (en) * 1991-03-01 1992-05-12 Hamlin Jerry J Purified water and ice dispensing apparatus
US5431813A (en) * 1994-02-14 1995-07-11 Daniels; Jack E. Water filtering bottle
DE19641369A1 (en) † 1996-10-08 1998-04-09 Mann & Hummel Filter Filter insert for filter unit removing particles from a liquid
US5753118A (en) * 1996-12-16 1998-05-19 Yang; Tsai Chen Faucet and filter assembly
US5833850A (en) * 1997-08-15 1998-11-10 Liu; Hsin Fa Water filter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9901220A1 *

Also Published As

Publication number Publication date
EP1340442B2 (en) 2009-07-29
EP1340442B1 (en) 2005-03-23
DE59812687D1 (en) 2005-04-28
US6383375B1 (en) 2002-05-07
DE19827623A1 (en) 1999-01-07
HK1057981A1 (en) 2004-04-30
EP1340442A1 (en) 2003-09-03
WO1999001220A1 (en) 1999-01-14

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