CN1738672A - Filter condition indicator - Google Patents
Filter condition indicator Download PDFInfo
- Publication number
- CN1738672A CN1738672A CNA028240367A CN02824036A CN1738672A CN 1738672 A CN1738672 A CN 1738672A CN A028240367 A CNA028240367 A CN A028240367A CN 02824036 A CN02824036 A CN 02824036A CN 1738672 A CN1738672 A CN 1738672A
- Authority
- CN
- China
- Prior art keywords
- water
- sensor
- filter cartridge
- control panel
- filter
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 77
- 238000000746 purification Methods 0.000 claims abstract description 13
- 238000003860 storage Methods 0.000 claims abstract description 4
- 238000012544 monitoring process Methods 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 5
- 239000004020 conductor Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000012806 monitoring device Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000008213 purified water Substances 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000003042 antagnostic effect Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 239000003139 biocide Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011045 prefiltration Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
-
- 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
- B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
- B01D29/603—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by flow measuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
- B01D35/143—Filter condition indicators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/54—Computerised or programmable systems
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Treatment By Sorption (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention provides a simple and cost-effective water purification system which is typically in the form of a storage filter. The system comprises at least one filter cartridge, a discharge outlet adapted to discharge filtered water, and a flow sensor arrangement adapted to sense the flow of water through the discharge outlet. The flow sensor arrangement comprises a pair of sensors arranged so that when the discharge outlet is opened and water flows through the outlet and between the sensors, the sensors become electrically connected to the electronic control panel and the water flow can be measured based on the time during which the electrical connection is established, and the status of the system (in particular the end of life of the filter cartridge) can be monitored based on the measured water flow.
Description
(technical field)
The present invention relates to a kind of water purification system of using Filter cartridge.More particularly, the present invention relates to a kind of water purification system that the use Filter cartridge of sensor and electronic director is housed, described sensor is used to detect the water yield of Filter cartridge of flowing through, described electronic director is used for the state of indication mechanism, particularly, indicate the termination in Filter cartridge life-span according to the water yield of the detected Filter cartridge of flowing through.
(background technology)
Being used to monitor the various systems or the device in water purification filter filter cylinder life-span is widely known by the people.
US4623451 discloses the water purification system that a kind of family expenses are installed radiator, and this cleaning system is equipped with monitoring device, and monitoring device is made of the conductance testing circuit that is used to detect the magnitude of current that has pair of electrodes.Owing to exist the dissolved solid thing can influence the conductance of water, therefore, this device is suitable for by reducing in the cleaning system that the dissolved solid thing purifies waste water.The limitation of this device is: it can not be applied to not by reducing the dissolved solid thing but by for example not bringing in the water purification system that the biocide of any influence purifies the conductance of water.In the described system of US4623451, just can between the electrode of checkout gear, form contact by two fingers being placed on the leading knob of going up the mechanical rotation tap.Electrode is immersed in the water all the time.But, electrode when only the knob on tap forwards " unlatchings " position to and contacts with electrode is mechanical ability charged.System also needs a flow restrictor, so as under normal operating pressure with predetermined constant flow delivery water.Another limitation of this system is: suppose no matter when open valve water all is to flow through tap incessantly.Flow through tap even without water, according to the position of knob, control circuit also keeps the time is monitored, thus the error of causing.
US5328597 discloses and has utilized programmable integrated circuit to monitor the number of times that water injects purifier.After water had injected predetermined times, monitoring device just sent sound signal and warns user's device near its service life.But for this reason, monitoring device is provided with complicated a plurality of contactors (sensor) and is provided with piezoelectric transducer and produces signal, thus complex structure, cost height.
US6024867 discloses a kind of top detector water filtering device, it has a filter housings, filter housings contains a dismountable cylindrical filter filter cylinder, and comprises that an electronic console makes the user can judge easily that Filter cartridge is in its service life allowable, terminates near its terminal point or life-span in service life allowable.Fluctuate and measure the life-span by detecting current caused magnetic field when the device.This just makes system architecture complexity, cost height and installation and maintenance inconvenience.Device needs a complexity and specific Filter cartridge, and measure the life-span will be according to the speed of current through device, also very complicated.In this system, use up Filter cartridge at every turn and just must change with measuring mechanism, also increased cost.And, owing to there is suspended impurity, therefore, on prefilter, produces pressure and fall, thereby cause biometrics inaccurate.
US5089133 discloses and another kind of be used to detect filter state and judge whether it has arrived the method and apparatus of end of life.Specifically, it can be used for monitoring the service life of active carbon filter.Flow sensor is arranged between filter and the tap.This device also can detect flow by the magnet that is fixed in the cabin.Magnet movement (being caused by pressure differential) causes producing around the magnet magnetic field, and described magnetic field forms the loop by the conductor Closing Switch again, with the indication water cabin of just flowing through.Conductor is arranged side by side and is connected on the printed circuit board (PCB).Conductor is arranged towards the components that will be connected on the tap.But this system is complex structure and manufacturing maintenance cost height still.
US4918426 discloses a kind of filter with Filter cartridge life tests device.Its adopts pressure sensor, pressure sensor can produce and the proportional pressure differential of fluid volume flow, and then are translated into the signal of telecommunication.Then, this signal of telecommunication is added up, so that calculate the actual discharge of the filter of flowing through.When this flow surpasses predetermined value, just send signal indication filter cylinder life termination.Working pressure sensor and measure differences in pressure be technical sophistication, cost height equally also, is not easy to install and maintenance.
Obviously, although people have designed multiple be used to monitor the Filter cartridge system or the device in service life, each all is that special properties according to its cleaning system that is used for gives concrete the application.Particularly, known flow monitoring system structure is too complicated, and perhaps cost is higher, and perhaps technology is not suitable for simple generic storage filter.Consider that water filter not only is extensive use of now in the city, use but also extend to the rural area, therefore, need provide a kind of simple in structure, cheap so that be used to monitor the Filter cartridge mechanism in service life with what the price that can bear was made and bought.Particularly, need provide a kind of Filter cartridge mechanism in service life that is used to monitor, this mechanism can carry out work by battery so that can be at inconvenient electrification but the remote districts of the drinking water of significant need safety or rural area use.
(summary of the invention)
An object of the present invention is to provide a kind of water purification system, it is equipped with, and simple in structure, cheap being used to detects discharge and the indication mechanism state is particularly indicated the Filter cartridge mechanism in service life according to the discharge of the detected Filter cartridge of flowing through.
Another object of the present invention provides a kind of stored filter device, and it has be used to the to monitor stored filter device state mechanism in Filter cartridge service life particularly, and it can be arranged on Anywhere, does not need to carry out complex installation or expensive technology.
Another object of the present invention provides a kind of stored filter device, it has audio frequency and/or video indication that simple in structure, cheap being used to is monitored stored filter device state and current state can be provided, for example is specially the mechanism of the others indication of the service life of Filter cartridge or the volume flow that system depends on water.
Another object of the present invention provides a kind of be used to monitor stored filter device state mechanism in Filter cartridge service life particularly, and it is applicable to the memory-type water filter of any kind of.
Another object of the present invention provides a kind of be used to monitor stored filter device state mechanism in Filter cartridge service life particularly, its discharge according to the Filter cartridge of flowing through is monitored, and only guarantee when the actual outflow filter outlet of water rather than other the time detect the volume flow of water, thereby can avoid occurring the detection error.
Another object of the present invention provides a kind of be used to monitor stored filter device state mechanism in Filter cartridge service life particularly, its discharge according to the Filter cartridge of flowing through is monitored, and record and the data of storing relevant stored filter device state, so that the stored filter device is used, keeps in repair and maintains.
Another object of the present invention provides a kind of be used to monitor stored filter device state mechanism by battery-powered operation in Filter cartridge service life particularly, itself in addition can use in the remote districts that do not having supply of electric power.
Another object of the present invention provides a kind of be used to monitor stored filter device state mechanism in Filter cartridge service life particularly, after successfully changing Filter cartridge at every turn, do not need to change this mechanism, and, after new filter cylinder has been installed, just can operate with further monitoring the Filter cartridge of changing again by resetting simply.
The invention provides a kind of water purification system that adopts Filter cartridge, this cleaning system comprises that at least one Filter cartridge, one are used to discharge the drainage outlet of filtered water and one and are used to detect the flow sensor structure of the discharge of draining outlet of flowing through;
The flow sensor structure comprises that being arranged on filtered water enters the first sensor in the inlet the place ahead of draining outlet and second sensor of the drainage outlet outer end, downstream that is arranged on first sensor;
First and second sensors operably are connected on the Electronic Control panel, thereby when draining port opening and water and between outlet and two sensors, flow through, sensor just is electrically connected with the Electronic Control panel, and can measure the flow of water, and come the state of monitoring system according to measured discharge according to the time that forms electrical connection.
Best, adopting the water purification system of Filter cartridge is the form of stored filter device.
Drain the preferably form of tap of outlet.
First and second sensors that comprise the flow sensor structure can be suitable for by any conductive material for example metallic pin, electrode or wire make, they can form between sensor and Electronic Control panel by the current of the sensor of flowing through and electrically contact.Importantly, sensor is arranged on drains outlet, thereby only when actual outflows of filtered water excretes mouthful, just take place mobile and between sensor and Electronic Control panel, form the time that electrically contacts to operate the volume flow that electronic circuit is monitored water according to water.In preferred systems of the present invention, first sensor is arranged on water enters tap from Filter cartridge inlet the place ahead, and second sensor is arranged on the exit of tap, with only guarantee water from system flow during through faucet spout rather than other the time operation Electronic Control panel.
System of the present invention can be applicable to easily and comprise that at least one Filter cartridge and one are used to drain the water purification system of any use Filter cartridge of the drainage outlet of filtered water.The Electronic Control panel that can reset can for good and all or be releasably attached in the system.The Electronic Control panel can carry out work under battery powered situation, therefore can use in the remote districts that do not have supply of electric power.
In system of the present invention, can directly monitor through the amount of purified water that tap is discharged, and when detecting current, control panel just water is taken place to flow and the detected time adds up by the Electronic Control panel.It is accessible and constantly based on the predetermined maximum magnitude of aggregate-value that storage device on the control panel has filter cylinder, indicating device on the Electronic Control panel will show the state of filter cylinder according to the state of system usually with the light of different colours, for example, the demonstration green glow represents that filter cylinder is within its predetermined/preset lifetime, gold-tinted represents that filter cylinder crossed its safe operating life, and perhaps ruddiness represents that the life termination of filter cylinder need change at once.Importantly, in system of the present invention, be not only that unlatching according to tap detects flowing of water through system only, and open tap in the water actual flow, may or can not discharge water, therefore can form wrong indication.
The Electronic Control panel is the battery-powered microcontroller circuit that carries out work with memory normally, and this memory can be carried with systematic function and for example be specially desirable capacity of Filter cartridge or the desirable relevant setting data of access times of Filter cartridge.Real data with these data and detection compares then, thereby produces status signal.For example, the Electronic Control panel state that can show below:
Current are through tap;
Near the Filter cartridge end of life time, the Total Water state of the Filter cartridge of flowing through;
When surpassing the Filter cartridge end of life, the Total Water state of the Filter cartridge of flowing through;
When voltage reduces, the state of battery supply.
Microcontroller circuit also can be kept data under the situation of changing battery.
Best, after each Filter cartridge new with changed a Filter cartridge that uses up, the Electronic Control panel can reset.This has just been avoided as some known system, exist use up behind the Filter cartridge at every turn control panel also useless problem like this.
Best, the data storage capacities of Electronic Control panel can be depending on following parameter:
The point place Total Water of Filter cartridge of flowing through at any time;
The number of resetting that calculation date is used;
The unique sequence number that shows the imparting system traceability.
The Electronic Control panel preferably has the state of video display with indication mechanism.But, also can be replacedly or the sound signal indicator additionally is set.
The Electronic Control panel is preferably battery-powered to carry out work, so that it can use in the remote districts that can not obtain suitable supply of electric power.In the case, other indicator is set preferably, the state of used battery in the indication mechanism, and use up in the time of must changing at battery electric power and to indicate.
(description of drawings)
The specific embodiment of system of the present invention shows in the accompanying drawings, wherein:
Fig. 1 is the front view of stored filter device of the present invention;
Fig. 2 is the front view that is used for the tap of stored filter device;
Fig. 3 is the side cross-sectional, view that is used for the tap of stored filter device;
Fig. 4 is the exploded view of syndeton between expression Electronic Control panel and indicating device and the stored filter device tap;
Fig. 5 is tap and the elevation view that is installed in the indicating device on the tap;
Fig. 6 a, 6b and 6c are that expression is used to detect the side cross-sectional, view that the sensor of discharge of tap arranges of flowing through.
(specific embodiment)
As shown in Figure 1, stored filter device of the present invention comprises cavity (FC1), and the bottom of cavity has the supporting arrangement of the Filter cartridge (FC2) that extends to second cavity (SC).Outlet tap (TP) is communicated with second cavity (SC) of supplying pure water.Uncover (LD) just can water to be clean be injected into first cavity (FC1) from the top.Then, the water of handling through filter filter cylinder (FC2) is collected in second cavity (SC) as crossing the water that filters, and when needs, just flows out from exporting tap (TP).Electronic Control panel (EC) with indication panel (IP) is installed on the tap (TP).
Fig. 2 and Fig. 3 at length show tap (TP).As shown in the figure, tap (TP) has head part (HP), and head partly is operably connected on second cavity (SC) of filter (not shown) by pipe fitting (TM) and sealing gasket and nut (GN) connector.Head part (HP) has outlet (OT), and outlet loads (SL) by spring and closes to keep faucet spout.During by leading discharge water, to mechanical lever (ML) application of force, the water nozzle head flows out water with regard to the effect campaign of antagonistic spring thereby open faucet spout along direction shown in the arrow " A " at needs.In case outflow water, the water of tap of flowing through just forms between sensor and Electronic Control panel and is electrically connected, thereby from sensor be used for monitoring the time course that flows between the Electronic Control panel of current, come the state of monitoring system according to the volume of the water of the tap of flowing through at water.
Fig. 4 shows the interference fit convex-concave syndeton of Electronic Control panel and tap head part.Although illustrated is the structure that removably connects of a kind of tap and Electronic Control panel,, therefore, tap and Electronic Control panel are connected as a single entity here owing to the Electronic Control panel is reducible and needn't changes when packing Filter cartridge at every turn.
Fig. 5 and Fig. 6 show the deployment scenarios of sensor that tap and Electronic Control panel and only being used to are monitored the volume flow of water when the water actual flow rather than when other situation.Fig. 5 is tap and is installed in the elevation view of the indication panel on the tap, and indication panel has and is used to indicate Filter cartridge (FC2) to be in green glow lamp (G) in its life span, is used to indicate Filter cartridge near the orange light modulation (O) of its end of life be used to indicate the red globe lamp (R) that life-span of Filter cartridge terminated.Be used for the battery low indicator (BL) that pilot cell need be changed but also be provided with.
Fig. 6 a, 6b and 6c show the deployment scenarios of sensor, and sensor closes with the water interworking of the tap of flowing through, and is electrically connected thereby form between sensor and Electronic Control panel.For avoiding discharge is made the detection of any mistake, be arranged to make it just to start the Electronic Control panel during through tap sensor in the water actual flow.First sensor (FS) be arranged in be used for connecting tap (TP) and second cavity (SC) and usually maintenance be immersed in the pipe fitting (TM) of water.Second sensor (SS) is arranged in the exit of tap, therefore, only tap open and water when pipe fitting (TM) flows out faucet spout (OT), first and second sensors are just realized being electrically connected by current, and form and can be operatively connected with Electronic Control panel (ECP).
Therefore, the amount of purified water that flows out of tap directly with (first and second) sensor by relevant from the formed electrical connection of the water time of flowing through between the two.Connect forming sensor by current at every turn, Electronic Control panel (it is a microcontroller circuit) cumulative time total amount, and according to constantly aggregate-value, the indication panel of electronic-controlled installation is with the state of display filter filter cylinder.The demonstration green glow represents that Filter cartridge also is in its predetermined/preset lifetime scope.The safe operating life of orange light representations Filter cartridge is mistake, and ruddiness represents that the life termination of Filter cartridge need change at once.Recorded stream is stored in the memory of Electronic Control panel/is upgraded through the data of the accumulation water yield of tap.After Filter cartridge uses up and installs a filter cylinder that newly changes, the Electronic Control panel is resetted, restart to monitor the volume flow and the relevant characteristic of new Filter cartridge.Needn't change the Electronic Control panel.
And as shown in Figure 5, the Electronic Control panel is provided with indicator, is used for the state of pilot cell, so that change when needed.
Claims (3)
1. water purification system that adopts Filter cartridge, this cleaning system comprise that at least one Filter cartridge, one are used to discharge the drainage outlet of filtered water and one and are used to detect the flow sensor structure of the discharge of draining outlet of flowing through;
This flow sensor structure comprises that being arranged on filtered water enters the first sensor in the inlet the place ahead of draining outlet and second sensor of the drainage outlet outer end, downstream that is arranged on first sensor;
This first and second sensor operably is connected on the Electronic Control panel, thereby when draining port opening and water and between outlet and two sensors, flow through, sensor just is electrically connected with the Electronic Control panel, and can measure the flow of water, and come the state of monitoring system according to measured discharge according to the time that forms electrical connection.
2. water purification system according to claim 1, it is the form of stored filter device.
3. water purification system according to claim 1 and 2, wherein, the Electronic Control panel is a microcontroller circuit that has storage device and carry out work by powered battery.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IN968/MUM/2001 | 2001-10-05 | ||
| IN968MU2001 | 2001-10-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1738672A true CN1738672A (en) | 2006-02-22 |
| CN1306984C CN1306984C (en) | 2007-03-28 |
Family
ID=11097303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB028240367A Expired - Fee Related CN1306984C (en) | 2001-10-05 | 2002-09-12 | Filter condition indicator |
Country Status (8)
| Country | Link |
|---|---|
| CN (1) | CN1306984C (en) |
| AR (1) | AR036737A1 (en) |
| BR (1) | BR0213109A (en) |
| MX (1) | MXPA04003145A (en) |
| MY (1) | MY134292A (en) |
| PL (1) | PL368866A1 (en) |
| RU (1) | RU2294234C2 (en) |
| WO (1) | WO2003031018A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101321999B (en) * | 2005-11-30 | 2010-05-19 | Bsh博世和西门子家用器具有限公司 | Domestic appliance with a water filter |
| CN102974163A (en) * | 2012-12-03 | 2013-03-20 | 上海伊美特实业有限公司 | Water purification equipment and filtering medium replacing and reminding method thereof |
| CN104436828A (en) * | 2014-12-03 | 2015-03-25 | 佛山市云米电器科技有限公司 | Water-purifying machine component and control method thereof |
| CN108844877A (en) * | 2018-05-04 | 2018-11-20 | 科勒(中国)投资有限公司 | A kind of data detection method and device based on the filter assemblies service life |
| CN109399840A (en) * | 2017-08-15 | 2019-03-01 | 芜湖美的厨卫电器制造有限公司 | The filter element life detection device and its detection method of purifying drinking appliance |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100766268B1 (en) | 2005-02-14 | 2007-10-15 | 주식회사 엘지화학 | Auto management system for air filter used in battery pack and auto management method for the same |
| MD3805C2 (en) * | 2007-12-26 | 2009-08-31 | ШКИЛЁВ Думитру Владимир | Water-purifying filter |
| PL2265905T3 (en) * | 2008-03-28 | 2012-10-31 | Brita Gmbh | Method for measuring the volume flow of electrically conductive liquids through a vessel |
| US8961781B2 (en) | 2011-09-29 | 2015-02-24 | Brita Lp | Filter status techniques adapted for use with a container based filtration device |
| RU2527854C2 (en) * | 2012-11-30 | 2014-09-10 | Государственное бюджетное образовательное учреждение высшего прфессионального образования "Кировская государственная медицинская академия" Министерства здравоохранения Российской Федерации (ГБОУ ВПО Кировская ГМА Минздрава России) | Vokhmyaninovтs method of service life determination for independent devices for treatment of water fed by gravity (versions) |
| CN106422493B (en) * | 2016-10-26 | 2018-11-06 | 广东高而美制冷设备有限公司 | A kind of intellectual blowing system and method for discharging pollution |
| CN113730972A (en) * | 2021-09-13 | 2021-12-03 | 津高阀门制造有限公司 | Y-shaped filter with replaceable filter element |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4436223A (en) * | 1981-02-03 | 1984-03-13 | Wilson Jerry L | Device for recording the dispensing of fluids |
| US5089144B1 (en) * | 1989-12-08 | 1996-11-12 | Nartron Corp | Filter condition indicator having moveable sensor and aggregate flow counter |
| US5527451A (en) * | 1994-03-08 | 1996-06-18 | Recovery Engineering, Inc. | Water treatment device with volume totalization valve |
| KR19990084486A (en) * | 1998-05-07 | 1999-12-06 | 윤종용 | How to determine when to replace the filter of the air purifier |
| AU2001263691A1 (en) * | 2000-06-05 | 2001-12-17 | Hb Innovation Ltd. | Fluid flow meter system |
-
2002
- 2002-09-12 BR BR0213109-9A patent/BR0213109A/en not_active Application Discontinuation
- 2002-09-12 WO PCT/EP2002/010378 patent/WO2003031018A1/en not_active Application Discontinuation
- 2002-09-12 CN CNB028240367A patent/CN1306984C/en not_active Expired - Fee Related
- 2002-09-12 MX MXPA04003145A patent/MXPA04003145A/en unknown
- 2002-09-12 RU RU2004113372/12A patent/RU2294234C2/en not_active IP Right Cessation
- 2002-09-12 PL PL02368866A patent/PL368866A1/en unknown
- 2002-10-03 MY MYPI20023697A patent/MY134292A/en unknown
- 2002-10-04 AR ARP020103752A patent/AR036737A1/en not_active Application Discontinuation
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101321999B (en) * | 2005-11-30 | 2010-05-19 | Bsh博世和西门子家用器具有限公司 | Domestic appliance with a water filter |
| CN102974163A (en) * | 2012-12-03 | 2013-03-20 | 上海伊美特实业有限公司 | Water purification equipment and filtering medium replacing and reminding method thereof |
| CN104436828A (en) * | 2014-12-03 | 2015-03-25 | 佛山市云米电器科技有限公司 | Water-purifying machine component and control method thereof |
| CN104436828B (en) * | 2014-12-03 | 2016-03-02 | 佛山市云米电器科技有限公司 | A kind of water purifier assembly and control method thereof |
| CN109399840A (en) * | 2017-08-15 | 2019-03-01 | 芜湖美的厨卫电器制造有限公司 | The filter element life detection device and its detection method of purifying drinking appliance |
| CN108844877A (en) * | 2018-05-04 | 2018-11-20 | 科勒(中国)投资有限公司 | A kind of data detection method and device based on the filter assemblies service life |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2004113372A (en) | 2005-03-27 |
| MXPA04003145A (en) | 2004-07-27 |
| WO2003031018A1 (en) | 2003-04-17 |
| CN1306984C (en) | 2007-03-28 |
| PL368866A1 (en) | 2005-04-04 |
| BR0213109A (en) | 2004-11-03 |
| AR036737A1 (en) | 2004-09-29 |
| RU2294234C2 (en) | 2007-02-27 |
| MY134292A (en) | 2007-12-31 |
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