CA976236A - Particle counter having removable aperture - Google Patents

Particle counter having removable aperture

Info

Publication number
CA976236A
CA976236A CA172,434A CA172434A CA976236A CA 976236 A CA976236 A CA 976236A CA 172434 A CA172434 A CA 172434A CA 976236 A CA976236 A CA 976236A
Authority
CA
Canada
Prior art keywords
particle counter
removable aperture
removable
aperture
counter
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
CA172,434A
Inventor
Thaddeus M. Doniguian
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.)
Becton Dickinson and Co
Original Assignee
Becton Dickinson and Co
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 Becton Dickinson and Co filed Critical Becton Dickinson and Co
Application granted granted Critical
Publication of CA976236A publication Critical patent/CA976236A/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 Analysing Biological Materials (AREA)
CA172,434A 1972-06-21 1973-05-28 Particle counter having removable aperture Expired CA976236A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26474872A 1972-06-21 1972-06-21

Publications (1)

Publication Number Publication Date
CA976236A true CA976236A (en) 1975-10-14

Family

ID=23007432

Family Applications (1)

Application Number Title Priority Date Filing Date
CA172,434A Expired CA976236A (en) 1972-06-21 1973-05-28 Particle counter having removable aperture

Country Status (7)

Country Link
US (1) US3783376A (en)
JP (1) JPS4953086A (en)
CA (1) CA976236A (en)
FR (1) FR2190271A5 (en)
GB (1) GB1438520A (en)
IT (1) IT980070B (en)
SE (1) SE406510B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4180091A (en) * 1977-11-18 1979-12-25 Becton, Dickinson And Company Purging means for aperture of blood cell counter
JPS61160038A (en) * 1985-01-08 1986-07-19 Sumitomo Electric Ind Ltd Particle detector
US4760328A (en) * 1986-05-05 1988-07-26 Integrated Ionics, Inc. Particle counter having electrodes and circuitry mounted on the pane of the orifice
ATE91789T1 (en) * 1987-02-17 1993-08-15 Ratcom Inc FLOW CYTOMETRY.
WO1995017658A1 (en) * 1993-12-20 1995-06-29 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
US5402062A (en) * 1993-12-23 1995-03-28 Abbott Laboratories Mechanical capture of count wafer for particle analysis
US5432992A (en) * 1993-12-23 1995-07-18 Abbott Laboratories Method of making count probe with removable count wafer
JPH07301595A (en) * 1994-05-09 1995-11-14 Toa Medical Electronics Co Ltd Method and apparatus for measuring particle
GB9624096D0 (en) * 1996-11-20 1997-01-08 Microbial Systems Ltd Apparatus and method of use thereof
US6111398A (en) * 1997-07-03 2000-08-29 Coulter International Corp. Method and apparatus for sensing and characterizing particles
DE60233708D1 (en) * 2001-11-30 2009-10-29 Sysmex Corp particle analyzer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2492768A (en) * 1947-09-18 1949-12-27 Gen Electric Cloud moisture meter
CH481431A (en) * 1968-04-05 1969-11-15 Contraves Ag Particle counter

Also Published As

Publication number Publication date
US3783376A (en) 1974-01-01
GB1438520A (en) 1976-06-09
IT980070B (en) 1974-09-30
SE406510B (en) 1979-02-12
JPS4953086A (en) 1974-05-23
FR2190271A5 (en) 1974-01-25

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