CA2034052A1 - Reverse osmosis system - Google Patents

Reverse osmosis system

Info

Publication number
CA2034052A1
CA2034052A1 CA2034052A CA2034052A CA2034052A1 CA 2034052 A1 CA2034052 A1 CA 2034052A1 CA 2034052 A CA2034052 A CA 2034052A CA 2034052 A CA2034052 A CA 2034052A CA 2034052 A1 CA2034052 A1 CA 2034052A1
Authority
CA
Canada
Prior art keywords
permeate
fed
storage tank
faucet
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
Application number
CA2034052A
Other languages
French (fr)
Other versions
CA2034052C (en
Inventor
Thomas E. Birdsong
Steve O. Mork
Steven L. Peace
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.)
Teledyne Water Pik
Original Assignee
Teledyne Water Pik
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 Teledyne Water Pik filed Critical Teledyne Water Pik
Publication of CA2034052A1 publication Critical patent/CA2034052A1/en
Application granted granted Critical
Publication of CA2034052C publication Critical patent/CA2034052C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/10—Accessories; Auxiliary operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/08—Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/08—Apparatus therefor
    • B01D61/081—Apparatus therefor used at home, e.g. kitchen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/12—Controlling or regulating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/90—Ultra pure water, e.g. conductivity water

Abstract

A reverse osmosis system includes a sediment filter which cleans feed water from a source and from which that feed water is fed to a reverse osmosis membrane filter. Permeate from the latter is fed to a bladder within a storage tank. Concentrate from the membrane filter is fed to and used within the storage tank as squeeze water for the bladder. When a faucet that delivers permeate to the user is open, squeeze water is used to cause permeate to flow out of the storage tank through an impurity filter to supply the faucet. A valve unit is included to control the amount of squeeze water fed to the storage tank and to regulate permeate flow so that the water outletted from the faucet remains at a constant pressure and provides relief as against overpressure in the system. A
proportioning valve within the valve unit serves to maintain at all times a constant ratio of concentrate to permeate flow through the membrane filter for adequate cleansing of the membrane. Also included are input-side and output-side flow monitors which provide signals to a processor that serves to indicate the status of filter conditions. There also is an advantageous faucet assembly for controlling the delivery of permeate to the user with flexibility and convenience.
CA002034052A 1990-01-16 1991-01-11 Reverse osmosis system Expired - Fee Related CA2034052C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US466,077 1990-01-16
US07/466,077 US5096574A (en) 1990-01-16 1990-01-16 Reverse osmosis system

Publications (2)

Publication Number Publication Date
CA2034052A1 true CA2034052A1 (en) 1991-07-17
CA2034052C CA2034052C (en) 1996-10-01

Family

ID=23850364

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002034052A Expired - Fee Related CA2034052C (en) 1990-01-16 1991-01-11 Reverse osmosis system

Country Status (6)

Country Link
US (1) US5096574A (en)
EP (1) EP0438372A3 (en)
JP (1) JPH0699171A (en)
CA (1) CA2034052C (en)
DE (1) DE438372T1 (en)
ES (1) ES2023791A4 (en)

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US6217751B1 (en) * 1995-01-23 2001-04-17 Aquatec Water Systems, Inc. Water quality monitor for a reverse osmosis water purification system
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US5814212A (en) * 1996-03-11 1998-09-29 Hsu; Chao Fou Monitoring process and device for an activated carbon filtration system of drinking water
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IL121883A0 (en) * 1997-10-05 1998-03-10 Soda Club Holdings Nv Apparatus and method for the purification of water
IL121885A0 (en) 1997-10-05 1998-03-10 Soda Club Holdings Nv Water purifying and dispensing apparatus
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AUPR818101A0 (en) * 2001-10-09 2001-11-01 Ryan, Simon Gerard Filtering device
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US6852216B2 (en) * 2002-10-28 2005-02-08 Pti Technologies, Inc. Sensing device using MEMS technology and prognostic health monitoring
US6936160B2 (en) * 2002-10-28 2005-08-30 Pti Technologies, Inc. Wireless MEMS sensing device
US6823718B2 (en) * 2002-10-28 2004-11-30 Pti Technologies, Inc. Single-body multiple sensing device
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US7900791B2 (en) * 2004-08-13 2011-03-08 Hydro System Treatment S.R.L. Container for a water treatment device and manufacturing method of said container
US20070138096A1 (en) * 2004-11-05 2007-06-21 Tarr Ronald S Systems and methods for controlling contaminate levels of processed water and maintaining membranes
US20060251785A1 (en) 2005-05-06 2006-11-09 Stefania Fraccon Method for cooking food using steam
JP5123184B2 (en) * 2005-08-26 2013-01-16 ネクスト−アールオー・インコーポレーテッド Reverse osmosis filtration system
ATE472363T1 (en) * 2005-08-26 2010-07-15 Next Ro Inc STORAGE TANK FOR A REVERSE OSMOSIS FILTER SYSTEM
US7445703B2 (en) * 2006-03-01 2008-11-04 Whirlpool Corporation Water conductivity monitoring circuit for use with a steam generator
US8393183B2 (en) 2007-05-07 2013-03-12 Whirlpool Corporation Fabric treatment appliance control panel and associated steam operations
US8257594B2 (en) * 2008-02-07 2012-09-04 3M Innovative Properties Company Twin tank water-on-water filtration system
US8083936B1 (en) * 2008-03-03 2011-12-27 Robert Walker Reducing waste water in reverse osmosis residential drinking water systems
US20090242493A1 (en) * 2008-03-25 2009-10-01 Hm Digital, Inc. Method and apparatus for routine liquid testing for total dissolved solids
US8375970B2 (en) * 2008-11-10 2013-02-19 Access Business Group International Llc Valve system
MY163295A (en) * 2008-11-10 2017-09-15 Access Business Group Int Llc Faucet valve system
RU2421270C1 (en) * 2009-10-05 2011-06-20 Общество с ограниченной ответственностью "Аквафор" Filtered water unit for water treatment system, water treatment system storage unit (versions), and water treatment system (versions)
US9731984B2 (en) 2010-02-19 2017-08-15 Topper Manufacturing Corporation Reverse osmosis systems with built in pressure regulation
US8409386B1 (en) 2010-02-22 2013-04-02 Next-Ro, Inc. Storage tank assemblies and methods for water on water reverse osmosis systems
CN102826666B (en) * 2011-06-15 2016-06-01 杜也兵 Water purifier and the filter gall monitoring method of device is monitored with Multi probe total dissolved solid
US9370747B2 (en) 2011-09-01 2016-06-21 New Mexico Tech Research Foundation Method and apparatus for reducing the total dissolved solids of a solution
BE1021456B1 (en) * 2012-09-11 2015-11-26 Ar Services Bvba DEVICE FOR TREATING LIQUIDS USING A CONTROLLED PISTON BULK WITH FLOW
KR20150065857A (en) 2012-10-11 2015-06-15 쓰리엠 이노베이티브 프로퍼티즈 컴파니 Reverse osmosis water-on-water control valve
US9950298B2 (en) 2013-09-26 2018-04-24 3M Innovative Properties Company Reverse osmosis water-on-water control valve
CN103771602A (en) * 2012-10-17 2014-05-07 杜也兵 Monitoring method of multiprobe soluble total solid monitor in water purifier
US10472252B2 (en) 2014-03-07 2019-11-12 Danco, Inc. Smart water filter system
US10259724B2 (en) * 2014-04-16 2019-04-16 Feelfree Srl Apparatus for treating water or liquids in general
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WO2018094288A2 (en) 2016-11-19 2018-05-24 Aqua Membranes Llc Flow directing devices for spiral-wound elements
WO2018190937A1 (en) 2017-04-12 2018-10-18 Aqua Membranes Llc Graded spacers for filtration wound elements
US11083997B2 (en) 2017-04-20 2021-08-10 Aqua Membranes Inc. Non-nesting, non-deforming patterns for spiral-wound elements
US11745143B2 (en) 2017-04-20 2023-09-05 Aqua Membranes, Inc. Mixing-promoting spacer patterns for spiral-wound elements
KR102513191B1 (en) 2017-10-13 2023-03-22 아쿠아 멤브레인스 인코포레이티드 Bridge supports and reduced feed spacers for spiral wound elements
KR20210051018A (en) * 2019-10-29 2021-05-10 코웨이 주식회사 Water purifier
CN115038509A (en) * 2020-02-03 2022-09-09 库利甘国际公司 Reverse osmosis drinking water system with special electric power tap
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Also Published As

Publication number Publication date
DE438372T1 (en) 1991-11-07
CA2034052C (en) 1996-10-01
ES2023791A4 (en) 1992-02-16
JPH0699171A (en) 1994-04-12
EP0438372A2 (en) 1991-07-24
EP0438372A3 (en) 1991-09-25
US5096574A (en) 1992-03-17

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Legal Events

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EEER Examination request
MKLA Lapsed