WO2002000552A3 - Indicateur de duree de vie d'un filtre a eau - Google Patents

Indicateur de duree de vie d'un filtre a eau Download PDF

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Publication number
WO2002000552A3
WO2002000552A3 PCT/US2001/018870 US0118870W WO0200552A3 WO 2002000552 A3 WO2002000552 A3 WO 2002000552A3 US 0118870 W US0118870 W US 0118870W WO 0200552 A3 WO0200552 A3 WO 0200552A3
Authority
WO
WIPO (PCT)
Prior art keywords
color change
indicator
reaction
water
reagents
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.)
Ceased
Application number
PCT/US2001/018870
Other languages
English (en)
Other versions
WO2002000552A2 (fr
Inventor
Michael L Kagan
Bradley D Mierau
Henry C Di Reid
John E Nohren Jr
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.)
Profile Sol Gel Ltd
Innova Pure Water Inc
Original Assignee
Profile Sol Gel Ltd
Innova Pure Water Inc
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 Profile Sol Gel Ltd, Innova Pure Water Inc filed Critical Profile Sol Gel Ltd
Priority to AU2001268342A priority Critical patent/AU2001268342A1/en
Publication of WO2002000552A2 publication Critical patent/WO2002000552A2/fr
Publication of WO2002000552A3 publication Critical patent/WO2002000552A3/fr
Anticipated expiration legal-status Critical
Ceased 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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F1/00—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F1/00—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers
    • G04F1/04—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers by movement or acceleration due to gravity
    • G04F1/06—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers by movement or acceleration due to gravity by flowing-away of a prefixed quantity of fine-granular or liquid materials, e.g. sand-glass, water-clock
    • 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
    • C02F2209/44—Time
    • C02F2209/445—Filter life
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2307/00—Location of water treatment or water treatment device
    • C02F2307/04—Location of water treatment or water treatment device as part of a pitcher or jug

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Sorption (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)

Abstract

L'invention concerne un indicateur et un procédé servant à indiquer l'expiration de la vie utile prédéterminée d'un filtre à eau, au moyen d'un changement de couleurs simple mais très efficace. L'eau migre dans un mécanisme de changement de couleurs doté d'un milieu poreux et provoque la réaction de premier et second réactifs, ce qui se solde par un changement de couleurs. Le système de réaction entre les réactifs peut être sélectionné parmi le groupe reposant essentiellement sur la chélation d'un ion métallique par un agent chélateur, sur la réaction d'un acide/d'une base avec un indicateur de pH, sur la réaction d'un électrodonneur/d'un électroaccepteur avec un indicateur d'oxydoréduction, et sur une réaction enzymatique entre un enzyme et un substrat. Ledit mécanisme de changement de couleurs affiche une avance graduelle du changement de couleur au cours du temps, et peut comporter une échelle afin d'afficher le temps écoulé. On peut utiliser un masque contenant des indices d'échelle pour rendre compte de la progression de la diffusion en matière de durée de vie utile prédéterminée du filtre.
PCT/US2001/018870 2000-06-23 2001-06-13 Indicateur de duree de vie d'un filtre a eau Ceased WO2002000552A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001268342A AU2001268342A1 (en) 2000-06-23 2001-06-13 Water-filter lifetime indicator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US59956500A 2000-06-23 2000-06-23
US09/599,565 2000-06-23

Publications (2)

Publication Number Publication Date
WO2002000552A2 WO2002000552A2 (fr) 2002-01-03
WO2002000552A3 true WO2002000552A3 (fr) 2002-06-20

Family

ID=24400141

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/018870 Ceased WO2002000552A2 (fr) 2000-06-23 2001-06-13 Indicateur de duree de vie d'un filtre a eau

Country Status (2)

Country Link
AU (1) AU2001268342A1 (fr)
WO (1) WO2002000552A2 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0218318D0 (en) 2002-08-07 2002-09-11 Strix Ltd Water treatment apparatus
GB0427825D0 (en) * 2004-12-17 2005-01-19 Strix Ltd Water treatment vessels and cartridges therefor
EP2081662B1 (fr) 2006-10-08 2012-08-01 Strauss Water Ltd Dispositif de surveillance de filtre pour fluide
WO2011030340A2 (fr) 2009-09-09 2011-03-17 Strauss Water Ltd Dispositif de filtration de liquide
DE102011075118B4 (de) * 2011-05-03 2023-12-07 BSH Hausgeräte GmbH Filtereinrichtung zum Reinigen von Wasser
CN204147673U (zh) 2014-07-25 2015-02-11 萨塔有限两合公司 保持装置及过滤系统
EP3274066B1 (fr) 2015-03-23 2020-04-22 Strauss Water Ltd Filtre à eau et assemblage associé
CN107323808A (zh) * 2017-07-04 2017-11-07 厦门麓山新材料科技有限公司 一种定时装置及使用方法
DE202019105324U1 (de) 2019-09-25 2021-01-05 Sata Gmbh & Co. Kg Dichtungsanordnung für einen Filter, insbesondere einen Druckluftfilter und Filterelement für einen Filter
DE202019105323U1 (de) 2019-09-25 2021-01-04 Sata Gmbh & Co. Kg Filterelement zur Verwendung in einem Filter und Filter mit einem Filterelement

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3620677A (en) * 1961-12-18 1971-11-16 Miles Lab Indicating device
US4292916A (en) * 1979-06-18 1981-10-06 Micro-Circuits Company Timer and storage condition indicator
EP0092034A2 (fr) * 1982-03-25 1983-10-26 List, Paul Heinz, Prof.Dr.rer.nat. Dispositif indicateur d'un chargement temps-température
US4432656A (en) * 1979-07-13 1984-02-21 Thomas Allmendinger Process for monitoring the history of temperature versus time of deep-frozen product, indicator for applying said process and utilization of said process
WO1989000680A1 (fr) * 1987-07-09 1989-01-26 Thomas Allmendinger Dispositif indicateur de la position d'un fluide qui se repand dans un corps
EP0454313A2 (fr) * 1990-04-11 1991-10-30 Alcan International Limited Indicateurs de temps écoulé, activé par du liquide et/ou de la température utilisable, en particulier, comme indicateurs de fermentation pour aliments
US5114570A (en) * 1989-08-14 1992-05-19 Teledyne Industries Inc. Water filter cartridge
WO1992016916A1 (fr) * 1991-03-22 1992-10-01 Borden (Uk) Limited Indicateur de temps ecoule
EP0545274A1 (fr) * 1991-12-03 1993-06-09 SOCIETE COOL S.a.r.l. Indicateur de conservation pour produits congéles ou refrigerés et procédé de mise en oeuvre de cet indicateur
US5930206A (en) * 1990-01-04 1999-07-27 Temtec, Inc. Time indicator

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3620677A (en) * 1961-12-18 1971-11-16 Miles Lab Indicating device
US4292916A (en) * 1979-06-18 1981-10-06 Micro-Circuits Company Timer and storage condition indicator
US4432656A (en) * 1979-07-13 1984-02-21 Thomas Allmendinger Process for monitoring the history of temperature versus time of deep-frozen product, indicator for applying said process and utilization of said process
EP0092034A2 (fr) * 1982-03-25 1983-10-26 List, Paul Heinz, Prof.Dr.rer.nat. Dispositif indicateur d'un chargement temps-température
WO1989000680A1 (fr) * 1987-07-09 1989-01-26 Thomas Allmendinger Dispositif indicateur de la position d'un fluide qui se repand dans un corps
US5114570A (en) * 1989-08-14 1992-05-19 Teledyne Industries Inc. Water filter cartridge
US5930206A (en) * 1990-01-04 1999-07-27 Temtec, Inc. Time indicator
EP0454313A2 (fr) * 1990-04-11 1991-10-30 Alcan International Limited Indicateurs de temps écoulé, activé par du liquide et/ou de la température utilisable, en particulier, comme indicateurs de fermentation pour aliments
WO1992016916A1 (fr) * 1991-03-22 1992-10-01 Borden (Uk) Limited Indicateur de temps ecoule
EP0545274A1 (fr) * 1991-12-03 1993-06-09 SOCIETE COOL S.a.r.l. Indicateur de conservation pour produits congéles ou refrigerés et procédé de mise en oeuvre de cet indicateur

Also Published As

Publication number Publication date
WO2002000552A2 (fr) 2002-01-03
AU2001268342A1 (en) 2002-01-08

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