CA943190A - Electronic particle analyzing apparatus with improved aperture tube - Google Patents

Electronic particle analyzing apparatus with improved aperture tube

Info

Publication number
CA943190A
CA943190A CA137,548A CA137548A CA943190A CA 943190 A CA943190 A CA 943190A CA 137548 A CA137548 A CA 137548A CA 943190 A CA943190 A CA 943190A
Authority
CA
Canada
Prior art keywords
analyzing apparatus
aperture tube
particle analyzing
improved aperture
electronic particle
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
CA137,548A
Other versions
CA137548S (en
Inventor
Walter R. Hogg
Wallace H. Coulter
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of CA943190A publication Critical patent/CA943190A/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
    • G01N15/1031—Investigating individual particles by measuring electrical or magnetic effects
    • G01N15/12—Investigating individual particles by measuring electrical or magnetic effects by observing changes in resistance or impedance across apertures when traversed by individual particles, e.g. by using the Coulter principle
    • G01N15/13—Details pertaining to apertures

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
CA137,548A 1971-03-26 1972-03-20 Electronic particle analyzing apparatus with improved aperture tube Expired CA943190A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12833271A 1971-03-26 1971-03-26

Publications (1)

Publication Number Publication Date
CA943190A true CA943190A (en) 1974-03-05

Family

ID=22434822

Family Applications (1)

Application Number Title Priority Date Filing Date
CA137,548A Expired CA943190A (en) 1971-03-26 1972-03-20 Electronic particle analyzing apparatus with improved aperture tube

Country Status (12)

Country Link
US (1) US3714565A (en)
JP (1) JPS5331389B1 (en)
AU (1) AU454030B2 (en)
CA (1) CA943190A (en)
CH (1) CH584897A5 (en)
FR (1) FR2130473B1 (en)
GB (1) GB1323271A (en)
IL (1) IL39027A (en)
IT (1) IT952314B (en)
NL (1) NL7203716A (en)
SE (1) SE380349B (en)
ZA (1) ZA721897B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3939409A (en) * 1974-08-01 1976-02-17 Coulter Electronics, Inc. Particle study device and sample metering means used therein
US4157498A (en) * 1977-08-01 1979-06-05 Miles Laboratories, Inc. Flow-through type particle analyzing apparatus
GB8414856D0 (en) * 1984-06-11 1984-07-18 Alcan Int Ltd Detection and measurement of suspended particles in molten metal
DE3923544C1 (en) * 1989-07-15 1990-10-18 Hartmann & Braun Ag, 6000 Frankfurt, De
DK111990D0 (en) * 1990-05-04 1990-05-04 Biometic Aps APPARATUS AND PROCEDURE FOR ANALYSIS OF A LIQUID SUSPENSION
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
GB9526652D0 (en) * 1995-12-29 1996-02-28 Shine Thomas A Electrode assembly
US6111398A (en) * 1997-07-03 2000-08-29 Coulter International Corp. Method and apparatus for sensing and characterizing particles
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
EP1178315A1 (en) * 2000-07-31 2002-02-06 Albrecht Dr.med. Priv.Doz. Lepple-Wienhues Method and apparatus for examining cells using the patch clamp method
WO2015056176A1 (en) * 2013-10-15 2015-04-23 Ecole Polytechnique Federale De Lausanne (Epfl) Sensing tip with electrical impedance sensor
EP3283221B1 (en) 2015-04-15 2022-09-07 Ecole Polytechnique Fédérale de Lausanne (EPFL) Devices, systems and methods for dispensing and analysing particles
US10910749B2 (en) 2017-04-11 2021-02-02 Ecole Polytechnique Federale De Lausanne (Epfl) Tip connector for fluidic and electrical connection

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3287638A (en) * 1962-10-02 1966-11-22 Univ Iowa State Res Found Inc Method of counting erythrocytes utilizing high frequency current
NL137000C (en) * 1964-03-26
US3395343A (en) * 1964-07-21 1968-07-30 Coulter Electronics Electronic particle study apparatus and vessel construction therefor
US3551802A (en) * 1968-02-08 1970-12-29 Leeds & Northrup Co Electrolytic conductivity cell employing a tube and a barrier member
US3539919A (en) * 1968-04-25 1970-11-10 Coulter Electronics Method for making glass aperture tube and product produced thereby

Also Published As

Publication number Publication date
NL7203716A (en) 1972-09-28
AU454030B2 (en) 1974-09-25
FR2130473B1 (en) 1973-06-29
SE380349B (en) 1975-11-03
GB1323271A (en) 1973-07-11
US3714565A (en) 1973-01-30
IL39027A (en) 1974-06-30
CH584897A5 (en) 1977-02-15
AU4018372A (en) 1973-09-27
DE2213524A1 (en) 1972-10-05
IL39027A0 (en) 1972-05-30
JPS5331389B1 (en) 1978-09-02
FR2130473A1 (en) 1972-11-03
ZA721897B (en) 1973-11-28
DE2213524B2 (en) 1976-07-15
IT952314B (en) 1973-07-20

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