CA953786A - Apparatus for counting and classifying particles suspended in a test liquid - Google Patents

Apparatus for counting and classifying particles suspended in a test liquid

Info

Publication number: CA953786A
Authority: CA; Canada
Prior art keywords: counting; test liquid; particles suspended; classifying particles; classifying
Prior art date: 1971-03-10
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

CA136,644A

Other versions

CA136644S (en

Inventor

Reinhard Thom

Jurgen Schulz

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.)

Licentia Patent Verwaltungs GmbH

Original Assignee

Licentia Patent Verwaltungs GmbH

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.)

1971-03-10

Filing date

1972-03-09

Publication date

1974-08-27

1971-03-10 Priority claimed from DE19712111356 external-priority patent/DE2111356A1/en

1971-09-11 Priority claimed from DE2145531A external-priority patent/DE2145531C2/en

1972-01-15 Priority claimed from DE19722201894 external-priority patent/DE2201894A1/en

1972-03-09 Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH

1974-08-27 Application granted granted Critical

1974-08-27 Publication of CA953786A publication Critical patent/CA953786A/en

Status Expired legal-status Critical Current

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
- G01N15/134—Devices using two or more 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)
Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

CA136,644A 1971-03-10 1972-03-09 Apparatus for counting and classifying particles suspended in a test liquid Expired CA953786A (en)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
DE19712111356 DE2111356A1 (en)	1971-03-10	1971-03-10	Device for determining the number and / or the size of particles suspended in a sample liquid
DE2145531A DE2145531C2 (en)	1971-09-11	1971-09-11	Particle counter/classifier -partic for blood corpuscles
DE19722201894 DE2201894A1 (en)	1972-01-15	1972-01-15	METHOD OF COUNTING AND CLASSIFYING PARTICLES SUSPENDED IN A TESTING LIQUID

Publications (1)

Publication Number	Publication Date
CA953786A true CA953786A (en)	1974-08-27

Family

ID=27183256

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA136,644A Expired CA953786A (en)	1971-03-10	1972-03-09	Apparatus for counting and classifying particles suspended in a test liquid

Country Status (10)

Country	Link
JP (1)	JPS5435115B1 (en)
BE (1)	BE780440A (en)
CA (1)	CA953786A (en)
CH (1)	CH558529A (en)
ES (1)	ES400399A1 (en)
FR (1)	FR2132004B1 (en)
GB (1)	GB1322686A (en)
IT (1)	IT953449B (en)
NL (1)	NL7202865A (en)
SE (1)	SE375614B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4165484A (en) *	1977-03-23	1979-08-21	Becton, Dickinson And Company	Particle counting apparatus utilizing various fluid resistors to maintain proper pressure differentials

1972
- 1972-03-01 GB GB960472A patent/GB1322686A/en not_active Expired
- 1972-03-02 SE SE7202684A patent/SE375614B/xx unknown
- 1972-03-03 ES ES72400399A patent/ES400399A1/en not_active Expired
- 1972-03-03 CH CH311772A patent/CH558529A/en not_active IP Right Cessation
- 1972-03-03 NL NL7202865A patent/NL7202865A/xx not_active Application Discontinuation
- 1972-03-07 IT IT2152072A patent/IT953449B/en active
- 1972-03-09 FR FR7208301A patent/FR2132004B1/fr not_active Expired
- 1972-03-09 CA CA136,644A patent/CA953786A/en not_active Expired
- 1972-03-09 BE BE780440A patent/BE780440A/en unknown
- 1972-03-10 JP JP2463072A patent/JPS5435115B1/ja active Pending

Also Published As

Publication number	Publication date
FR2132004A1 (en)	1972-11-17
NL7202865A (en)	1972-09-12
CH558529A (en)	1975-01-31
GB1322686A (en)	1973-07-11
IT953449B (en)	1973-08-10
SE375614B (en)	1975-04-21
JPS5435115B1 (en)	1979-10-31
FR2132004B1 (en)	1976-02-20
ES400399A1 (en)	1975-01-01
BE780440A (en)	1972-07-03

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