GB1438520A - Particle counters - Google Patents

Particle counters

Info

Publication number
GB1438520A
GB1438520A GB2952473A GB2952473A GB1438520A GB 1438520 A GB1438520 A GB 1438520A GB 2952473 A GB2952473 A GB 2952473A GB 2952473 A GB2952473 A GB 2952473A GB 1438520 A GB1438520 A GB 1438520A
Authority
GB
United Kingdom
Prior art keywords
plates
june
aperture
slide
cell
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
GB2952473A
Other languages
English (en)
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
Publication of GB1438520A publication Critical patent/GB1438520A/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)
GB2952473A 1972-06-21 1973-06-21 Particle counters Expired GB1438520A (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
GB1438520A true GB1438520A (en) 1976-06-09

Family

ID=23007432

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2952473A Expired GB1438520A (en) 1972-06-21 1973-06-21 Particle counters

Country Status (7)

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

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 (ja) * 1985-01-08 1986-07-19 Sumitomo Electric Ind Ltd 粒子検出器
US4760328A (en) * 1986-05-05 1988-07-26 Integrated Ionics, Inc. Particle counter having electrodes and circuitry mounted on the pane of the orifice
EP0279000B1 (en) * 1987-02-17 1993-07-21 Ratcom, Inc. Flow cytometry
AU1258495A (en) * 1993-12-20 1995-07-10 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
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
JPH07301595A (ja) * 1994-05-09 1995-11-14 Toa Medical Electronics Co Ltd 粒子測定装置およびその粒子測定方法
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 (de) * 2001-11-30 2009-10-29 Sysmex Corp Teilchenanalysator

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 (de) * 1968-04-05 1969-11-15 Contraves Ag Teilchenzähler

Also Published As

Publication number Publication date
US3783376A (en) 1974-01-01
CA976236A (en) 1975-10-14
JPS4953086A (https=) 1974-05-23
SE406510B (sv) 1979-02-12
IT980070B (it) 1974-09-30
FR2190271A5 (https=) 1974-01-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee