WO2023052419A1 - Dispositif de filtration pour un réservoir de chasse d'eau et réservoir de chasse d'eau pour un équipement sanitaire - Google Patents

Dispositif de filtration pour un réservoir de chasse d'eau et réservoir de chasse d'eau pour un équipement sanitaire Download PDF

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Publication number
WO2023052419A1
WO2023052419A1 PCT/EP2022/076977 EP2022076977W WO2023052419A1 WO 2023052419 A1 WO2023052419 A1 WO 2023052419A1 EP 2022076977 W EP2022076977 W EP 2022076977W WO 2023052419 A1 WO2023052419 A1 WO 2023052419A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
water
outlet
filter device
flushing
Prior art date
Application number
PCT/EP2022/076977
Other languages
German (de)
English (en)
Inventor
Hendrik Heitkamp
Sascha ROEDIGER
Christian Koch
Original Assignee
Grohe Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Grohe Ag filed Critical Grohe Ag
Publication of WO2023052419A1 publication Critical patent/WO2023052419A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
    • E03D5/003—Grey water flushing systems
    • E03D5/006—Constructional details of cisterns for using greywater
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/48—Overflow systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
    • B01D29/6438—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element nozzles
    • B01D29/6453—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element nozzles with a translational movement with respect to the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D29/668—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with valves, e.g. rotating valves for coaxially placed filtering elements

Definitions

  • Filter device for a cistern and cistern for a sanitary facility
  • the present invention relates to a filter device for a cistern and a cistern for a sanitary facility.
  • Such cisterns are used in particular for flushing the sanitary facility, such as a toilet or a urinal, with a liquid.
  • Flushing cisterns are regularly built into a wall in sanitary rooms and are connected to the sanitary facility via a pipeline. When flushing is activated, the liquid flows via the pipeline into the sanitary facility, as a result of which excrement taken up by the sanitary facility is removed from the sanitary facility.
  • flushing cisterns regularly have a receiving space in which a predefinable quantity of liquid for a flushing process can be kept. Additional functional components of the cistern, such as filling valves, dosing units or drain valves, which are required when using the cistern, are also arranged in the receiving space.
  • cisterns can be operated not only with fresh water or drinking water, but also with raw water, which can be, for example, so-called gray water or rainwater.
  • raw water can contain impurities, such as leaves, sediment, dead insects or the like, which can lead to impairments or damage to the functional components of the cistern. Therefore, filter devices are known through which the impurities can be filtered out of the raw water.
  • the filter devices can become clogged with the impurities over time, so that they have to be serviced or replaced regularly. This is associated with a high maintenance effort. For example, the water supply must be completely shut off and/or liquid lines must be at least partially dismantled.
  • backwashable filter devices are known.
  • the object of the invention is therefore to at least partially solve the problems described with reference to the prior art and in particular to specify a filter device for a cistern that requires little maintenance.
  • a cistern for a sanitary facility is to be specified, the filter device of which requires little maintenance.
  • a filter device for a cistern which has at least the following, contributes to this:
  • a housing with an inlet for raw water, a first outlet for clean water and a second outlet for rinsing water;
  • the cistern is used in particular for flushing a sanitary facility, such as a toilet or a urinal.
  • the cistern can be arranged in particular in or on a building wall of a building and/or can be connected to the sanitary facility via a pipeline.
  • the filter device is in particular in a receiving space of the cistern for Pure water, in particular water, can be arranged.
  • the filter device has a housing with an inlet for raw water, a first outlet for clean water and a second outlet for rinsing water.
  • the housing can be at least partially made of plastic and/or metal, such as brass.
  • the housing can be a plastic injection molded part.
  • the inlet can be formed on and/or in the housing in the manner of an opening. Furthermore, the inlet can be connected to a source for raw water. For this purpose, the inlet can have a thread for a first liquid line, for example in the manner of a flexible hose or a pipeline.
  • the raw water can be, for example, what is known as gray water or rainwater.
  • the filter device has a first filter through which the raw water can be filtered to form pure water.
  • the first filter is at least partially arranged in the housing.
  • the first filter can, for example, comprise a sieve, grid, net and/or wire mesh.
  • the raw water can be fed to the first filter via an inlet channel.
  • the inlet channel extends in particular from the inlet to the first filter and/or through the housing.
  • the inlet channel can have a straight course.
  • the first filter can in particular be flown through by the raw water and/or can at least partially remove (macroscopic) impurities in the raw water, so that this can then leave the filter device as pure water via the first outlet of the housing.
  • the pure water therefore does not have to be "pure" in the sense of drinking water, but can still contain impurities that were not removed by the first filter, for example due to their small size.
  • the first outlet of the housing can be connected to a filling valve, by means of which filling of the cistern with the pure water can be controlled, in particular automatically.
  • the filling valve can in particular be open until a predefinable filling level of the pure water is reached in the receiving space of the cistern.
  • the receiving space of the cistern can, for example, have a receiving capacity for the pure water of 3 liters to 9 liters
  • the receiving space can have an upper opening which can be closed at least partially by a cover, for example.
  • the cistern can be at least partially made of plastic and/or be designed as a plastic injection molded part.
  • the filling valve can include a float, by means of which the filling level of the pure water in the receiving space can be determined. When the predetermined filling level is reached, the filling valve closes, in particular automatically, until the predetermined filling level is fallen below again when the sanitary facility is flushed.
  • the filter device and the filling valve can be designed as separate components, for example, or the filter device can be integrated into the filling valve.
  • the first outlet of the filter device can be connected to the filling valve via a second liquid line, for example in the form of a flexible hose or a pipeline.
  • the first filter can become at least partially clogged with impurities during the operation of the filter device, so that, for example, the flow of raw water or clean water through the first filter decreases, the first filter can be supplied with rinsing water for at least partially cleaning the first filter via a rinsing water channel.
  • the flushing water channel can in particular extend at least partially through the housing and/or be at least partially designed as a pipeline or hose line. Furthermore, the flushing water channel can extend at least partially outside the housing.
  • the flushing water can in particular be water or the raw water.
  • the rinsing water can be fed to the first filter in particular in such a way that the rinsing water flows through the first filter in the opposite direction (compared to cleaning the raw water) and in doing so removes the impurities retained by the first filter via a second outlet of the filter device or the housing. Furthermore, the rinsing water can be fed to the first filter in particular in such a way that the rinsing water flows parallel to the first filter or parallel to an upstream side of the first filter and the impurities retained by the first filter, in particular from an area upstream of the first filter , removed via the second outlet of the filter device or the housing.
  • the filter device is therefore particularly low-maintenance or even maintenance-free.
  • the flushing water channel can extend from the inflow channel to the first filter.
  • the flushing water channel can extend from an area of the inlet channel to the first filter, which is located between the inlet and the first filter.
  • the rinsing water channel can in particular branch off from the inlet duct, so that the raw water from the inlet channel can enter the rinsing water channel as rinsing water.
  • the flushing water channel can extend with a first longitudinal end from the inlet channel.
  • a flushing water channel opening of the flushing water channel can be aligned at an angle of 45° to 135° to an inflow channel opening of the inflow channel.
  • the flushing water channel opening of the flushing water channel can preferably be aligned at an angle of 80° to 100°, particularly preferably (essentially) 90°, to the inflow channel opening of the inflow channel.
  • the flushing water channel opening is in particular a second longitudinal end of the flushing water channel, which is opposite the first longitudinal end of the flushing water channel.
  • the inflow channel opening is in particular a third longitudinal end of the inflow channel, which is opposite the inflow.
  • the first filter can be arranged in an adjustable valve body.
  • the valve body can, for example, be at least partially spherical, cylindrical and/or cylindrical.
  • the valve body can be arranged at least partially in the housing.
  • either the first outlet or the second outlet can be opened by the valve body, with the respective other outlet being closed.
  • the first filter can be arranged in a valve body opening of the valve body.
  • the valve body opening can be designed at least partially as a bore, through bore and/or slot.
  • the inlet channel can be connected to the first outlet or the flushing water channel can be connected to the second outlet (flowing fluid) via the valve body opening.
  • the valve body can be adjustable between a normal operating position and a flushing operating position.
  • the raw water In the normal operating position, the raw water can be fed to the first filter, in particular via the inlet channel, can be filtered through the first filter to form the pure water and/or the pure water can be discharged from the filter device via the first outlet. Furthermore, in the rinsing operating position, the raw water or the rinsing water can be fed to the first filter via the rinsing water channel, the first filter can be at least partially cleaned by the raw water or the rinsing water and/or the raw water or the rinsing water can be discharged from the filter device via the second outlet.
  • the changeover between the normal operating position and the flushing operating position can be carried out, for example, by a user of the filter device, the cistern and/or the sanitary facility.
  • the first outlet for the clean water can be open and the second outlet for the rinsing water can be closed and/or in the rinsing operating position of the valve body the first outlet for the clean water can be closed and the second outlet for the rinsing water can be open.
  • the valve body can be rotatable about an axis of rotation.
  • the valve body can be rotated about the axis of rotation between the normal operating position and the flushing operating position.
  • the flushing water channel can have a second filter.
  • the second filter can be arranged in particular at the first longitudinal end of the flushing water channel and/or inside the flushing water channel. Furthermore, the second filter can in particular be arranged at least partially parallel to an inner wall of the flushing water channel.
  • the second filter can, for example, comprise a sieve, grid, net and/or wire mesh.
  • the second filter can, in particular, be flown through by the raw water and/or can at least partially remove the (macroscopic) impurities in the raw water, so that this can then clean the first filter as rinsing water and/or the filter device can leave the filter device via the second outlet of the housing.
  • the filter device can have a closing element for closing the flushing water channel.
  • the first longitudinal end of the flushing water channel can be closed by means of the closing element.
  • the closing element can be designed in the manner of a switching element, with which the raw water can be supplied to the first filter either via the inlet channel or as flushing water via the flushing water channel.
  • the closing element can be designed, for example, in the manner of a flap.
  • the flap can be pivotable about a pivot axis.
  • a cistern for a sanitary facility which has at least the following:
  • Excess clean water can be removed via the overflow, in particular when the clean water in the receiving space of the cistern exceeds a maximum permissible filling level. This can occur, for example, if the filling valve is defective.
  • the overflow thus prevents in particular an uncontrolled escape of the pure water from the top opening of the cistern and/or water damage to a building.
  • the excess clean water can be fed to a sewer and/or the sanitary facility, for example, via the overflow.
  • the rinsing water can be discharged from the second outlet of the filter device, in particular directly, into the overflow, via which the clean water can be removed from the cistern.
  • the overflow can be formed on a drain valve of the cistern.
  • the drain valve can be used in particular to control the outflow of the clean water from the receiving space to the sanitary facility.
  • the overflow can in particular be at least partially tubular and/or (when the cistern is installed) have an opening pointing upwards for the clean water.
  • the overflow in the installed state of the cistern
  • the drain valve can be arranged, for example, on a floor of the receiving space of the cistern.
  • the filling valve can be fastened to the drain valve, for example via a holder.
  • a drain of the cistern can be closed by the drain valve.
  • the drain is in particular an opening in the cistern, via which the clean water can be fed to the sanitary facility, for example via a pipeline.
  • the drain is arranged in particular on the bottom of the receiving space of the cistern.
  • the outlet valve can have a valve element which, for example, is at least partially tubular and/or hollow.
  • the valve element can be placed, for example with one of its longitudinal ends, in particular on a valve seat of the outlet and/or lifted off the valve seat to open the outlet.
  • the second outlet of the filter device can open into the overflow.
  • the second outlet of the filter device can in particular open into the overflow in such a way that there is no (direct) physical contact between the second outlet and the overflow.
  • the second outlet can be arranged at a distance from the overflow.
  • the flushing water can enter the overflow at least partially as a free jet, for example.
  • the second outlet of the filter device can be connected to the overflow.
  • the second outlet can, for example, open directly into the overflow or be connected to the overflow via a liquid line, such as a flexible hose or a pipe.
  • the filter device can be arranged above the overflow. This is particularly the case when the cistern is in a mounted state or in a state ready for operation.
  • the cistern can have an actuating element for actuating the filter device or the valve body of the filter device.
  • the actuating element can be, for example, an actuating button or the like, by means of which the valve body of the filter device can be adjusted by the user into the normal operating position and/or the flushing operating position.
  • the actuating element can be arranged, for example, on a building wall or on the sanitary facility.
  • the valve body can, for example, be automatically adjustable between the normal operating position and the flushing operating position.
  • the filter device can have an (electrical) drive, for example, which can be controlled, for example, by a controller.
  • the first filter of the filter device can, for example, be cleaned automatically at regular intervals or when excessive contamination is detected.
  • the cistern can have a mounting frame with which the cistern can be fastened to the wall of the building.
  • the mounting frame can include at least one metal profile.
  • the mounting frame can be fastened to the building wall and/or a building floor.
  • the mounting frame can serve as a support for the sanitary facility.
  • FIG. 3 shows a first embodiment of a filter device of the cistern in a first longitudinal section
  • FIG. 4 shows the first embodiment variant of the filter device of the cistern in a second longitudinal section
  • FIG. 1 shows a sanitary facility 2 which is designed in the manner of a toilet and is fastened to a building wall 22 with the aid of a mounting frame 21 shown in FIG.
  • the mounting frame 21 is covered in FIG. 1 with a pre-wall 23 so that the mounting frame 21 is not visible.
  • the pre-wall 23 shown in FIG. 1 and the sanitary facility 2 are not shown in FIG. 2 so that the mounting frame 21 can be seen.
  • a cistern 18 for the sanitary facility 2 is attached to the mounting frame 21 .
  • FIG. 3 shows a first embodiment variant of a filter device 1 in a first longitudinal section.
  • the filter device 1 has a housing 3 with an inlet 4 for raw water and a first outlet 5 for pure water. From the inlet 4, an inlet channel 8 extends inside the housing 3 to a valve body 12 arranged in the housing 3. Between the inlet 4 and the valve body 12, a flushing water channel 9 branches off from the inlet channel 8 and also leads to the valve body 12. A flushing water channel opening 10 of the flushing water channel 9 is aligned at an angle 24 to an inlet channel opening 11 of the inlet channel 8, which corresponds to 90° in the first embodiment variant of the filter device 1 shown here.
  • the valve body 12 is designed in the manner of a ball and has a valve body opening 25 which extends completely through the valve body 12 . Furthermore, the valve body 12 can be rotated about an axis of rotation 15 between a normal operating position 13 shown in FIG. 3 and a flushing operating position 14 shown in FIG. In this case, the untreated water can be prevented from escaping into an environment 28 of the filter device 1 by means of seals 27 .
  • the valve body opening 25 of the valve body 12 connects the inlet channel 8 to an outlet channel 26 of the housing 3.
  • the valve body 12 closes the flushing water channel opening 10 of the flushing water channel 9.
  • a first filter 7 is arranged in the valve body opening 25, with which the raw water entrained impurities can be at least partially filtered out, so that the raw water, after flowing through the first filter 7, as pure water via the discharge channel 26 to a first outlet 5 of the Housing 3 can be fed.
  • the impurities can at least partially clog the first filter 7 so that the first filter 7 has to be cleaned.
  • valve body 12 of the filter device 1 in Fig. 4 is rotated 90° counterclockwise about the axis of rotation 15 into the flushing operating position 14, so that the valve body opening 25 connects the flushing water channel 9 to a second outlet 6 of the housing 3 .
  • the valve body 12 closes the inlet channel opening 11 of the inlet channel 8.
  • the flushing water channel 9 has a second filter 16 at a first longitudinal end 29 opposite the flushing water channel opening 10, through which the impurities that may be carried along in the raw water can be at least partially filtered out.
  • the raw water can be fed to the valve body 12 as flushing water after it has flowed through the second filter 16 , so that the first filter 7 can flow through in the opposite direction compared to the normal operating position 13 shown in FIG. 3 .
  • impurities collected by the first filter 7 can be removed from the filter 7 or the valve body opening 25 with the rinsing water via the second outlet 6 .
  • The. 5 shows a second embodiment variant of the filter device 1 in a longitudinal section viewed from above.
  • the second embodiment of the filter device 1 differs from the first embodiment of the filter device 1 only in that the valve body 12 is cylindrical.
  • the first filter 7 can have a larger filter surface parallel to the axis of rotation 15 of the valve body 12, so that the first filter 7 has a higher absorption capacity for impurities.
  • the valve body 12 is in Fig. 5 in the normal operating position 13, in which the valve body opening 25 connects the inlet channel 8 to the outlet channel 26, so that raw water supplied via the inlet 4 after cleaning through the first filter 7 as clean water via the first outlet 5 can drain.
  • the valve body 12 can be rotated counterclockwise about the axis of rotation 15 into the flushing operating position 14 shown in FIG. 4 , so that impurities collected by the first filter 7 can be discharged via the second outlet 6 of the housing 3 .
  • 6 shows the second embodiment variant of the filter device 1 in a side view with a view of the flushing water channel 9 .
  • the discharge channel 26 is funnel-shaped at a second longitudinal end 30 opposite the second outlet 5 .
  • FIG. 7 shows a third embodiment variant of the filter device 1 in a longitudinal section.
  • the flushing water channel 9 has a closing element 17 at the first longitudinal end 29 .
  • the closing element 17 is designed here in the manner of a flap and can be pivoted about a pivot axis 31 between an open position 32 shown in FIG. 7 and a closed position not shown in FIG.
  • the flushing water channel 9 is open and the feed channel 8 (between the first longitudinal end 29 of the flushing water channel 9 and the flushing water channel opening 10) is closed, so that the raw water can be routed as flushing water along the first filter 7.
  • contaminants caught by the first filter 7 can be discharged by the rinsing water via the second outlet 6 of the housing 3 .
  • the second outlet 6 can be closed here with a pivotable closure 33 .
  • the closing element 17 When the closing element 17 is in the closed position, the first longitudinal end 29 of the flushing water channel 9 is closed and the inlet channel 8 is open, so that the raw water can flow out as clean water via the first outlet 5 after cleaning through the first filter 7 .
  • the closure 33 is also closed here, so that the raw water cannot escape from the second outlet 6 .
  • FIG. 8 shows the cistern 18 in a schematic sectional representation from a direction indicated by an arrow 34 in FIG. 2 .
  • the first variant of the filter device 1 is arranged in the cistern 18, the inlet 4 of which is connected via a first liquid line 35 to a source 36 for raw water.
  • the raw water can be filtered through the filter device 1 and fed as pure water to a filling valve 19 of the cistern 18 via the first outlet 5 of the filter device 1 .
  • the first outlet 5 of the filter device 1 is connected to the filling valve 19 via a second liquid line 37 .
  • a receiving space 38 of the cistern 19 can be filled with the pure water up to a predeterminable filling level.
  • the cistern 18 has a drain 40 on its base 39, via which the clean water can be fed to the sanitary facility 2 shown in FIG. 1 in order to carry out a flush.
  • the cistern 18 has a drain valve 41 with which a flow of the clean water from the receiving space 38 to the sanitary facility 2 can be controlled with a tubular valve element 42 .
  • the outflow 40 is closed in FIG. 8 by the valve element 42 of the outflow valve 41 .
  • a control element 43 shown in FIG.
  • the drain valve 41 also has a tubular overflow 20 via which excess clean water can be removed if the clean water in the receiving space 38 of the cistern 18 exceeds a permissible filling level 45 . This can happen, for example, if the filling valve 19 is defective.
  • the first filter 7 of the filter device 1 can become increasingly clogged with impurities carried along in the untreated water, so that the first filter 7 has to be cleaned.
  • the valve body 12 can be adjusted by a user of the sanitary facility 2 into the flushing operating position 14 via an actuating element 46 shown in Fig. 1, so that the impurities caught by the first filter 7 are transported with the flushing water via the second outlet 6 of the filter unit 1 into the overflow 20 of the drain valve 41 can be released.
  • the filter device 1 is arranged with its second outlet 6 above the overflow 20 . The flushing water flows from the overflow 20 through the tubular valve element 42 and the outlet 40 into the sanitary facility 2 shown in FIG.
  • the cistern 18 also includes an inspection flap 47 which can be closed in particular in a liquid-tight manner and via which the filter device 1 is accessible, for example for maintenance purposes. Due to the present invention, a cistern that can be used with raw water requires little maintenance.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Lift Valve (AREA)
  • Sanitary Device For Flush Toilet (AREA)

Abstract

L'invention concerne un dispositif de filtration (1) pour un réservoir de chasse d'eau (18), comprenant au moins : un boîtier (3) pourvu d'une amenée (4) pour l'eau brute, d'une première sortie (5) pour l'eau pure et d'une deuxième sortie (6) pour l'eau de chasse ; un premier filtre (7) servant à filtrer l'eau brute pour obtenir de l'eau pure ; un conduit d'amenée (8) par lequel l'eau brute peut être amenée au premier filtre (7) ; et un conduit d'eau de chasse (9) par lequel l'eau de chasse peut être amenée au premier filtre (7) pour nettoyer au moins partiellement le premier filtre (7). L'invention concerne en outre un réservoir de chasse d'eau (18) pourvu d'un tel dispositif de filtration (1).
PCT/EP2022/076977 2021-09-30 2022-09-28 Dispositif de filtration pour un réservoir de chasse d'eau et réservoir de chasse d'eau pour un équipement sanitaire WO2023052419A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021125410.8A DE102021125410A1 (de) 2021-09-30 2021-09-30 Filtereinrichtung für einen Spülkasten und Spülkasten für eine Sanitäreinrichtung
DE102021125410.8 2021-09-30

Publications (1)

Publication Number Publication Date
WO2023052419A1 true WO2023052419A1 (fr) 2023-04-06

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PCT/EP2022/076977 WO2023052419A1 (fr) 2021-09-30 2022-09-28 Dispositif de filtration pour un réservoir de chasse d'eau et réservoir de chasse d'eau pour un équipement sanitaire

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DE (1) DE102021125410A1 (fr)
WO (1) WO2023052419A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6132626A (en) * 1995-08-19 2000-10-17 Maguire Boss Liquid filter
DE20320782U1 (de) * 2003-09-03 2005-06-23 Schütz, Mario Sparspülkasten
KR200405419Y1 (ko) * 2005-10-12 2006-01-11 (주)물사랑 절수형 양변기 시스템
EP1689505B1 (fr) * 2003-12-05 2008-07-09 Dosmatic USA, Inc. Filtre a chasse et a lavage a contre-courant

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10207162A1 (de) 2002-02-20 2003-08-28 Grohe Armaturen Friedrich Verwertungseinrichtung von Grauwasser
WO2006001577A1 (fr) 2004-03-20 2006-01-05 Mool Sarang Co., Ltd Systeme de cuvette de toilettes a economie d'energie qui recycle l'eau de lavage
CN210079012U (zh) 2019-05-31 2020-02-18 厦门瑞尔特卫浴科技股份有限公司 一种易清洁的过滤器及具有其的马桶水箱装置和进水阀
DE102020120913A1 (de) 2020-08-07 2022-02-10 Grohe Ag Spülkasten für eine Sanitäreinrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6132626A (en) * 1995-08-19 2000-10-17 Maguire Boss Liquid filter
DE20320782U1 (de) * 2003-09-03 2005-06-23 Schütz, Mario Sparspülkasten
EP1689505B1 (fr) * 2003-12-05 2008-07-09 Dosmatic USA, Inc. Filtre a chasse et a lavage a contre-courant
KR200405419Y1 (ko) * 2005-10-12 2006-01-11 (주)물사랑 절수형 양변기 시스템

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