WO2002101474A3 - Flow control systems - Google Patents

Flow control systems Download PDF

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Publication number
WO2002101474A3
WO2002101474A3 PCT/US2002/019121 US0219121W WO02101474A3 WO 2002101474 A3 WO2002101474 A3 WO 2002101474A3 US 0219121 W US0219121 W US 0219121W WO 02101474 A3 WO02101474 A3 WO 02101474A3
Authority
WO
WIPO (PCT)
Prior art keywords
flow
fluid
electroosmotic
flow control
control systems
Prior art date
Application number
PCT/US2002/019121
Other languages
French (fr)
Other versions
WO2002101474A2 (en
Inventor
David W Neyer
Phillip H Paul
Don Wesley Arnold
Christopher G Bailey
Original Assignee
Eksigent Technologies Llc
David W Neyer
Phillip H Paul
Don Wesley Arnold
Christopher G Bailey
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 Eksigent Technologies Llc, David W Neyer, Phillip H Paul, Don Wesley Arnold, Christopher G Bailey filed Critical Eksigent Technologies Llc
Priority to EP20020739909 priority Critical patent/EP1407330B1/en
Priority to US10/480,691 priority patent/US7597790B2/en
Priority to JP2003504171A priority patent/JP2004530221A/en
Priority to CA 2450119 priority patent/CA2450119C/en
Priority to AU2002312530A priority patent/AU2002312530A1/en
Publication of WO2002101474A2 publication Critical patent/WO2002101474A2/en
Publication of WO2002101474A3 publication Critical patent/WO2002101474A3/en
Priority to US12/567,482 priority patent/US8795493B2/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/26—Conditioning of the fluid carrier; Flow patterns
    • G01N30/28—Control of physical parameters of the fluid carrier
    • G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
    • 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
    • B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
    • B01D61/56—Electro-osmotic dewatering
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D11/00—Control of flow ratio
    • G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
    • G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
    • G05D11/131—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by measuring the values related to the quantity of the individual components
    • G05D11/132—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by measuring the values related to the quantity of the individual components by controlling the flow of the individual components
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/06—Control of flow characterised by the use of electric means
    • G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
    • G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
    • G05D7/0694—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means or flow sources of very small size, e.g. microfluidics
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/26—Conditioning of the fluid carrier; Flow patterns
    • G01N30/28—Control of physical parameters of the fluid carrier
    • G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
    • G01N2030/324—Control of physical parameters of the fluid carrier of pressure or speed speed, flow rate
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/26—Conditioning of the fluid carrier; Flow patterns
    • G01N30/28—Control of physical parameters of the fluid carrier
    • G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
    • G01N2030/326—Control of physical parameters of the fluid carrier of pressure or speed pumps
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/85978—With pump
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/85978—With pump
    • Y10T137/85986—Pumped fluid control
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/85978—With pump
    • Y10T137/85986—Pumped fluid control
    • Y10T137/86027—Electric

Abstract

A flow controller which uses a combination of hydrostatic pressure and electroosmotic flow to control the flow of a fluid. A driving fluid (1204) whose flow rate is dependent on both hydrostatic pressures and electroosmotic flow can be used (a) directly as a working fluid in an operable device, for example a chromatograph, or (b) to displace a working fluid (1203) from a storage container (625) into an operable device (1301), or both (a) and (b). The driving fluid (1204) can be composed of one or more fluids. Part or all the driving fluid (1204) is passed through an electroosmotic device (100) so as to increase or decrease the flow rate induced by hydrostatic pressure.
PCT/US2002/019121 2001-06-13 2002-06-13 Flow control systems WO2002101474A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP20020739909 EP1407330B1 (en) 2001-06-13 2002-06-13 Flow control systems
US10/480,691 US7597790B2 (en) 2001-06-13 2002-06-13 Flow control systems
JP2003504171A JP2004530221A (en) 2001-06-13 2002-06-13 Flow control system
CA 2450119 CA2450119C (en) 2001-06-13 2002-06-13 Flow control systems
AU2002312530A AU2002312530A1 (en) 2001-06-13 2002-06-13 Flow control systems
US12/567,482 US8795493B2 (en) 2001-06-13 2009-09-25 Flow control systems

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US29814701P 2001-06-13 2001-06-13
US60/298,147 2001-06-13
US09/942,884 2001-08-29
US09/942,884 US20020189947A1 (en) 2001-06-13 2001-08-29 Electroosmotic flow controller
US10/155,474 2002-05-24
US10/155,474 US20020195344A1 (en) 2001-06-13 2002-05-24 Combined electroosmotic and pressure driven flow system

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US10/155,474 Continuation-In-Part US20020195344A1 (en) 2001-06-13 2002-05-24 Combined electroosmotic and pressure driven flow system

Related Child Applications (3)

Application Number Title Priority Date Filing Date
US10480691 A-371-Of-International 2002-06-13
US12/567,482 Division US8795493B2 (en) 2001-06-13 2009-09-25 Flow control systems
US12/567,482 Continuation US8795493B2 (en) 2001-06-13 2009-09-25 Flow control systems

Publications (2)

Publication Number Publication Date
WO2002101474A2 WO2002101474A2 (en) 2002-12-19
WO2002101474A3 true WO2002101474A3 (en) 2003-05-01

Family

ID=26970501

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/019121 WO2002101474A2 (en) 2001-06-13 2002-06-13 Flow control systems

Country Status (6)

Country Link
US (7) US20020189947A1 (en)
EP (1) EP1407330B1 (en)
JP (2) JP2004530221A (en)
AU (1) AU2002312530A1 (en)
CA (1) CA2450119C (en)
WO (1) WO2002101474A2 (en)

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US20100012497A1 (en) 2010-01-21
US20040163957A1 (en) 2004-08-26

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