GB1479901A - Self-cleaning aperture tube for coulter study apparatus and electrolyte supply system therefor - Google Patents

Self-cleaning aperture tube for coulter study apparatus and electrolyte supply system therefor

Info

Publication number
GB1479901A
GB1479901A GB41368/74A GB4136874A GB1479901A GB 1479901 A GB1479901 A GB 1479901A GB 41368/74 A GB41368/74 A GB 41368/74A GB 4136874 A GB4136874 A GB 4136874A GB 1479901 A GB1479901 A GB 1479901A
Authority
GB
United Kingdom
Prior art keywords
electrolyte
coulter
waste
self
supply system
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.)
Expired
Application number
GB41368/74A
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.)
Coulter Electronics Ltd
Coulter Electronics Inc
Original Assignee
Coulter Electronics Ltd
Coulter Electronics 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 Coulter Electronics Ltd, Coulter Electronics Inc filed Critical Coulter Electronics Ltd
Publication of GB1479901A publication Critical patent/GB1479901A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/12—Coulter-counters
    • G01N15/13—
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/38—Diluting, dispersing or mixing samples

Abstract

1479901 Electro-physical measurement; particle analysis COULTER ELECTRONICS Ltd 23 Sept 1974 [26 Sept 1973] 41368/74 Heading G1N(C) In a Coulter type particle analyzer, a "twochamber" tube is provided whereby clean electrolyte can be flowed past the aperture to waste, in a manner similar to that disclosed in Specification 1341336 and a constriction in the flow-path is arranged to increase the velocity behind the aperture. OVERALL SYSTEM FIG. 1. A double tube 13 is sealed into a coupling block 19 attached by screws 59 to the head-block 58, for easy interchange. The electrolyte system is electrically isolated from waste 42 and supply reservoir 52 by drip feed tanks 24, 29. The sample and electrolyte are moved through the apparatus by vacuum applied to the waste drip tank 24. The clean electrolyte flow is regulated by a constriction 27. Several variations of double tube construction are disclosed with reference to Figs. 2 ... 13 which are substantially self explanatory. Figs. 2, 5, 6, 7 only are shown as typical.
GB41368/74A 1973-09-26 1974-09-23 Self-cleaning aperture tube for coulter study apparatus and electrolyte supply system therefor Expired GB1479901A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US400986A US3902115A (en) 1973-09-26 1973-09-26 Self-cleaning aperture tube for coulter study apparatus and electrolyte supply system therefor

Publications (1)

Publication Number Publication Date
GB1479901A true GB1479901A (en) 1977-07-13

Family

ID=23585797

Family Applications (1)

Application Number Title Priority Date Filing Date
GB41368/74A Expired GB1479901A (en) 1973-09-26 1974-09-23 Self-cleaning aperture tube for coulter study apparatus and electrolyte supply system therefor

Country Status (8)

Country Link
US (1) US3902115A (en)
JP (1) JPS5522734B2 (en)
CA (1) CA1007704A (en)
DE (1) DE2445411C2 (en)
FR (1) FR2244989B1 (en)
GB (1) GB1479901A (en)
NL (1) NL7412562A (en)
SE (1) SE409246B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0384789A2 (en) * 1989-01-26 1990-08-29 Toa Medical Electronics Co., Ltd. Particle detector and control system for controlling liquid flow in the particle detector

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3979669A (en) * 1973-09-26 1976-09-07 Coulter Electronics, Inc. Particle analyzing system
US4014611A (en) * 1975-04-30 1977-03-29 Coulter Electronics, Inc. Aperture module for use in particle testing apparatus
US4103229A (en) * 1977-01-28 1978-07-25 The University Of Virginia Continuous-flow, resistive-particle counting apparatus
US4090128A (en) * 1977-02-15 1978-05-16 Coulter Electronics, Inc. Aperture module for use in particle testing apparatus
IL53921A (en) * 1977-02-15 1979-12-30 Coulter Electronics Electronic particle sensing aperture module with perforated electrode
US4157498A (en) * 1977-08-01 1979-06-05 Miles Laboratories, Inc. Flow-through type particle analyzing apparatus
US4290011A (en) * 1978-05-18 1981-09-15 Particle Data, Inc. Particle length and volume comeasurement with controlled orientation
US4491786A (en) * 1978-09-13 1985-01-01 Coulter Electronics, Inc. Transducer for measuring particles suspended in a fluid
JPS55143431A (en) * 1979-04-26 1980-11-08 Toa Medical Electronics Co Ltd Detector for corpuscle
JPH0129567Y2 (en) * 1980-01-21 1989-09-08
JPS56103348A (en) * 1980-01-22 1981-08-18 Toa Medical Electronics Co Ltd Particle detector
US4361803A (en) * 1980-08-26 1982-11-30 Coulter Electronics, Inc. Apparatus for recirculating sweep flow electrolyte without a pump
US4710021A (en) * 1983-10-14 1987-12-01 Sequoia-Turner Corporation Particulate matter analyzing apparatus and method
DE3437519A1 (en) * 1983-10-14 1985-04-25 Sequoia Turner Corp Method and apparatus for analysing particulate material
US5094818A (en) * 1989-05-04 1992-03-10 Exact Science, Inc. Self-filling anti-siphon flow system for particle analysis
US5432992A (en) * 1993-12-23 1995-07-18 Abbott Laboratories Method of making count probe with removable count wafer
US5402062A (en) * 1993-12-23 1995-03-28 Abbott Laboratories Mechanical capture of count wafer for particle analysis
AU1258595A (en) * 1993-12-23 1995-07-10 Abbott Laboratories Method of making a stress relieved count probe
US5895869A (en) * 1995-11-17 1999-04-20 Mwi, Inc. Method and apparatus for analyzing particulate matter
US6175227B1 (en) 1997-07-03 2001-01-16 Coulter International Corp. Potential-sensing method and apparatus for sensing and characterizing particles by the Coulter principle
US6111398A (en) * 1997-07-03 2000-08-29 Coulter International Corp. Method and apparatus for sensing and characterizing particles
US6259242B1 (en) 1999-05-26 2001-07-10 Coulter International Corp. Apparatus incorporating a sensing conduit in conductive material and method of use thereof for sensing and characterizing particles
AU778225C (en) 1999-08-06 2005-07-14 Koninklijke Philips Electronics N.V. Particle characterisation apparatus
CA2489099C (en) * 2002-06-11 2012-12-18 Chempaq A/S A disposable cartridge for characterizing particles suspended in a liquid
CA2597496A1 (en) 2005-02-10 2006-08-17 Chempaq A/S Dual sample cartridge and method for characterizing particles in liquid
US8028566B2 (en) * 2005-02-10 2011-10-04 Chempaq A/S Dual sample cartridge and method for characterizing particles in liquid
DE102009024561A1 (en) * 2009-06-08 2010-12-16 Hydac Filter Systems Gmbh Method and device for detecting impurities in a fluid

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3340471A (en) * 1966-08-22 1967-09-05 Coulter Electronics Flow-through sample apparatus for use with electrical particle study device
US3746976A (en) * 1971-04-07 1973-07-17 Coulter Electronics Self-cleaning aperture tube for coulter study apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0384789A2 (en) * 1989-01-26 1990-08-29 Toa Medical Electronics Co., Ltd. Particle detector and control system for controlling liquid flow in the particle detector
EP0384789A3 (en) * 1989-01-26 1990-10-03 Toa Medical Electronics Co., Ltd. Particle detector and control system for controlling liquid flow in the particle detector

Also Published As

Publication number Publication date
SE409246B (en) 1979-08-06
JPS5522734B2 (en) 1980-06-18
DE2445411A1 (en) 1975-05-07
NL7412562A (en) 1975-04-01
DE2445411C2 (en) 1984-08-09
JPS5061269A (en) 1975-05-26
SE7411921L (en) 1975-03-27
CA1007704A (en) 1977-03-29
FR2244989A1 (en) 1975-04-18
FR2244989B1 (en) 1976-10-22
US3902115A (en) 1975-08-26

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19940922