WO2007127389A3 - Method and apparatus for controlling fluid flow - Google Patents

Method and apparatus for controlling fluid flow Download PDF

Info

Publication number
WO2007127389A3
WO2007127389A3 PCT/US2007/010277 US2007010277W WO2007127389A3 WO 2007127389 A3 WO2007127389 A3 WO 2007127389A3 US 2007010277 W US2007010277 W US 2007010277W WO 2007127389 A3 WO2007127389 A3 WO 2007127389A3
Authority
WO
WIPO (PCT)
Prior art keywords
pump
port
utility port
valve
continuous
Prior art date
Application number
PCT/US2007/010277
Other languages
French (fr)
Other versions
WO2007127389A2 (en
Inventor
James W Kenney
Original Assignee
Drummond Scient Co
James W Kenney
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 Drummond Scient Co, James W Kenney filed Critical Drummond Scient Co
Priority to CN2007800152939A priority Critical patent/CN101443551B/en
Priority to JP2009507827A priority patent/JP5185256B2/en
Priority to EP07794396.7A priority patent/EP2016286B1/en
Publication of WO2007127389A2 publication Critical patent/WO2007127389A2/en
Publication of WO2007127389A3 publication Critical patent/WO2007127389A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
    • F04B45/047—Pumps having electric drive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/02—Burettes; Pipettes
    • B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/02—Burettes; Pipettes
    • B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
    • B01L3/0213—Accessories for glass pipettes; Gun-type pipettes, e.g. safety devices, pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009—Special features
    • F04B43/0081—Special features systems, control, safety measures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2400/00—Moving or stopping fluids
    • B01L2400/04—Moving fluids with specific forces or mechanical means
    • B01L2400/0475—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure
    • B01L2400/0487—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure fluid pressure, pneumatics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2400/00—Moving or stopping fluids
    • B01L2400/06—Valves, specific forms thereof
    • B01L2400/0633—Valves, specific forms thereof with moving parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2201/00—Pump parameters
    • F04B2201/02—Piston parameters
    • F04B2201/0201—Position of the piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2201/00—Pump parameters
    • F04B2201/12—Parameters of driving or driven means
    • F04B2201/1208—Angular position of the shaft

Abstract

A method and apparatus for controlling bi-directional fluid flow. The apparatus has a pump (20) that operates in a continuous pump cycle having a pressure phase and a vacuum phase. A conduit (19) connects a common pump port to a utility port (29). An electrically- controlled valve (22) regulates air flow through the conduit. The valve operates between a first position isolating the pump and the utility port, and a second position connecting the pump and the utility port in fluid communication. A detector (18) continuously detects and communicates a signal identifying whether the pump is operating in the pressure or vacuum phase of the pump cycle A controller (24) uses the detector signal to synchronize actuation of the valve with the pump cycle to generate either continuous positive or continuous negative pressure at the utility port
PCT/US2007/010277 2006-04-27 2007-04-27 Method and apparatus for controlling fluid flow WO2007127389A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2007800152939A CN101443551B (en) 2006-04-27 2007-04-27 Method and apparatus for controlling fluid flow
JP2009507827A JP5185256B2 (en) 2006-04-27 2007-04-27 Method and apparatus for controlling fluid flow
EP07794396.7A EP2016286B1 (en) 2006-04-27 2007-04-27 Method and apparatus for controlling fluid flow

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/413,143 2006-04-27
US11/413,143 US20070253832A1 (en) 2006-04-27 2006-04-27 Method and apparatus for controlling fluid flow

Publications (2)

Publication Number Publication Date
WO2007127389A2 WO2007127389A2 (en) 2007-11-08
WO2007127389A3 true WO2007127389A3 (en) 2008-07-31

Family

ID=38648488

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/010277 WO2007127389A2 (en) 2006-04-27 2007-04-27 Method and apparatus for controlling fluid flow

Country Status (5)

Country Link
US (1) US20070253832A1 (en)
EP (1) EP2016286B1 (en)
JP (1) JP5185256B2 (en)
CN (1) CN101443551B (en)
WO (1) WO2007127389A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9158308B2 (en) * 2011-05-13 2015-10-13 Fluke Corporation Apparatus using electronically-controlled valves
ES2712896T3 (en) * 2011-07-28 2019-05-16 Ecolab Usa Inc Diaphragm pump for dosing a fluid and a corresponding method
US11067072B2 (en) * 2014-12-01 2021-07-20 Ecolab Usa Inc. Diaphragm pump for dosing a fluid and an according method
GB2541031B (en) * 2015-08-07 2017-09-06 Magpumps Ltd Gear pump for pumping fluid
US11624362B2 (en) * 2015-08-07 2023-04-11 Magpumps Limited Device for pumping fluid
US11471878B2 (en) * 2019-10-25 2022-10-18 Mettler-Toledo Rainin, LLC Powered positive displacement pipette
US11369954B2 (en) * 2019-10-25 2022-06-28 Mettler-Toledo Rainin, LLC Powered positive displacement pipette assembly
US11911767B2 (en) 2019-10-25 2024-02-27 Mettler-Toledo Rainin, LLC Positive displacement pipette syringe identification system
CN113663541A (en) * 2021-06-04 2021-11-19 深圳市和来生物技术有限公司 Liquid mixing device applied to micro-fluidic chip and micro-fluidic chip

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050158211A1 (en) * 2004-01-16 2005-07-21 Piacenza Donna A. Pipette device with pivotable nozzle assembly

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Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050158211A1 (en) * 2004-01-16 2005-07-21 Piacenza Donna A. Pipette device with pivotable nozzle assembly

Also Published As

Publication number Publication date
EP2016286B1 (en) 2018-09-05
EP2016286A2 (en) 2009-01-21
CN101443551B (en) 2013-03-27
EP2016286A4 (en) 2012-07-18
JP2009535557A (en) 2009-10-01
JP5185256B2 (en) 2013-04-17
CN101443551A (en) 2009-05-27
WO2007127389A2 (en) 2007-11-08
US20070253832A1 (en) 2007-11-01

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