CA941905A - Scanning element and aperture wafer for electronic particle counting and sizing apparatus - Google Patents

Scanning element and aperture wafer for electronic particle counting and sizing apparatus

Info

Publication number: CA941905A
Authority: CA; Canada
Prior art keywords: scanning element; particle counting; sizing apparatus; electronic particle; aperture wafer
Prior art date: 1969-11-06
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

CA097,159A

Other versions

CA97159S (en

Inventor

Wallace H. Coulter

Walter R. Hogg

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.)

1969-11-06

Filing date

1970-11-02

Publication date

1974-02-12

1970-11-02 Application filed by Individual filed Critical Individual

1974-02-12 Application granted granted Critical

1974-02-12 Publication of CA941905A publication Critical patent/CA941905A/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
- G01N15/13—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)
Testing Or Measuring Of Semiconductors Or The Like (AREA)
Sampling And Sample Adjustment (AREA)

CA097,159A 1969-11-06 1970-11-02 Scanning element and aperture wafer for electronic particle counting and sizing apparatus Expired CA941905A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US87463269A	1969-11-06	1969-11-06

Publications (1)

Publication Number	Publication Date
CA941905A true CA941905A (en)	1974-02-12

Family

ID=25364208

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA097,159A Expired CA941905A (en)	1969-11-06	1970-11-02	Scanning element and aperture wafer for electronic particle counting and sizing apparatus

Country Status (12)

Country	Link
US (1)	US3628140A (en)
BE (1)	BE758383A (en)
CA (1)	CA941905A (en)
CH (1)	CH539271A (en)
DE (1)	DE2053825C3 (en)
DK (1)	DK140735B (en)
FR (1)	FR2068358A5 (en)
GB (1)	GB1281819A (en)
IL (1)	IL35566A (en)
NL (1)	NL7015978A (en)
SE (1)	SE370461B (en)
ZA (1)	ZA707410B (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3771058A (en) *	1971-04-05	1973-11-06	Coulter Electronics	Scanner element for coulter particle apparatus
US3739258A (en) *	1971-08-20	1973-06-12	Iit Res Inst	Method and apparatus for detecting and sizing microscopic particles
US4818103A (en) *	1981-05-15	1989-04-04	Ratcom	Flow cytometry
US4673288A (en) *	1981-05-15	1987-06-16	Ratcom, Inc.	Flow cytometry
EP0068404B1 (en) *	1981-06-24	1985-10-02	Becton Dickinson and Company	Analyzer for simultaneously determining volume and light emission characteristics of particles
GB8505047D0 (en) *	1985-02-27	1985-03-27	Alcan Int Ltd	Studying particles
US4778657A (en) *	1985-09-10	1988-10-18	Kernforschungszentrum Karlsruhe Gmbh	Apparatus for determining the characteristics of particles suspended in liquids
US4760328A (en) *	1986-05-05	1988-07-26	Integrated Ionics, Inc.	Particle counter having electrodes and circuitry mounted on the pane of the orifice
FR2600125B1 (en) *	1986-06-17	1990-07-06	Bronzavia Air Equipement	JET AND DEVICE IMPLEMENTING SUCH A JET
ATE91789T1 (en) *	1987-02-17	1993-08-15	Ratcom Inc	FLOW CYTOMETRY.
ATE148000T1 (en) *	1990-03-08	1997-02-15	Macnaught Pty Ltd	FLOW REGULATORS FOR LIQUID INFUSION DEVICES
US5918637A (en) *	1993-08-16	1999-07-06	Fleischman; William H.	Plates perforated with venturi-like orifices
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
WO1995017659A1 (en) *	1993-12-23	1995-06-29	Abbott Laboratories	Method of making a stress relieved count probe
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
US9423336B2 (en)	2013-01-24	2016-08-23	Beckman Coulter, Inc.	Systems and methods for particle sensing and characterization

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR665776A (en) *
FR690214A (en) *	1929-06-04	1930-09-17	Glanzstoff Ag	Nozzle for the production of artificial silk and in particular for viscose silk
US2105198A (en) *	1936-02-07	1938-01-11	Capstan Glass Co	Heat control mechanism
US2190357A (en) *	1937-06-09	1940-02-13	Aro Equipment Corp	Replaceable needle point adapter for lubricating devices
NL173016C (en) *	1951-11-08		Gizeh Werk Gmbh	DEVICE FOR FILLING PRE-MADE CIGARETTE SHELLS WITH TOBACCO.
US2790463A (en) *	1956-03-19	1957-04-30	Delano & Garner Mfg Co	Flow regulator
US3264557A (en) *	1961-12-06	1966-08-02	Heeps Brian Hamilton	Method and apparatus for detecting and measuring minute quantities of water presentin liquid hydrocarbon fuels
US3266526A (en) *	1962-11-26	1966-08-16	Robert H Berg	Peripherally locked and sealed orifice disk and method
FR1517434A (en) *	1966-04-22	1968-03-15	Paul Aschenbrenner Pan Appbau	Glass die, especially for high viscosity synthetic fiber solutions

0
- BE BE758383D patent/BE758383A/en unknown
1969
- 1969-11-06 US US874632A patent/US3628140A/en not_active Expired - Lifetime
1970
- 1970-10-31 NL NL7015978A patent/NL7015978A/xx unknown
- 1970-11-02 SE SE7014724A patent/SE370461B/xx unknown
- 1970-11-02 ZA ZA707410A patent/ZA707410B/en unknown
- 1970-11-02 CA CA097,159A patent/CA941905A/en not_active Expired
- 1970-11-02 CH CH1618670A patent/CH539271A/en not_active IP Right Cessation
- 1970-11-02 DE DE2053825A patent/DE2053825C3/en not_active Expired
- 1970-11-02 GB GB52046/70A patent/GB1281819A/en not_active Expired
- 1970-11-02 FR FR7039379A patent/FR2068358A5/fr not_active Expired
- 1970-11-02 IL IL35566A patent/IL35566A/en unknown
- 1970-11-02 DK DK556170AA patent/DK140735B/en unknown

Also Published As

Publication number	Publication date
DE2053825B2 (en)	1974-04-11
GB1281819A (en)	1972-07-19
SE370461B (en)	1974-10-14
DE2053825C3 (en)	1974-11-14
FR2068358A5 (en)	1971-08-20
DK140735B (en)	1979-11-05
US3628140A (en)	1971-12-14
DK140735C (en)	1980-03-24
CH539271A (en)	1973-07-15
NL7015978A (en)	1971-05-10
ZA707410B (en)	1972-06-28
IL35566A0 (en)	1971-01-28
IL35566A (en)	1973-01-30
BE758383A (en)	1971-04-16
DE2053825A1 (en)	1971-05-19

Publication	Publication Date	Title
CA941905A (en)	1974-02-12	Scanning element and aperture wafer for electronic particle counting and sizing apparatus
AU412107B2 (en)	1971-04-01	Apparatus for particle classification and analysis
CA940361A (en)	1974-01-22	Imaging process and materials
AU443632B2 (en)	1972-05-04	Scanning element and aperature wafer for electronic particle counting and sizing apparatus
AU2176970A (en)	1972-05-04	Scanning element and aperature wafer for electronic particle counting and sizing apparatus
CA925173A (en)	1973-04-24	Electronic processing apparatus
AU280413B2 (en)		Particle counting and sizing apparatus
CA797153A (en)	1968-10-22	Particle coating apparatus
CA829469A (en)	1969-12-09	Aperture tube for electronic particle study apparatus
AU435220B2 (en)	1973-04-26	Particle studying apparatus
AU459866B2 (en)	1972-06-15	Electronic processing apparatus
CA804846A (en)	1969-01-28	Particle size distribution measurement
CA925744A (en)	1973-05-08	Imaging process and materials
AU2310970A (en)	1972-06-15	Electronic processing apparatus
AU414925B2 (en)	1968-02-22	Process and apparatus for coating solid particles
CA805423A (en)	1969-02-04	Photographic exposure and processing apparatus
CA805422A (en)	1969-02-04	Photographic exposure and processing apparatus
CA812514A (en)	1969-05-13	Photographic exposure and processing apparatus
CA920195A (en)	1973-01-30	High sensitivity and high fidelity electro-magnetic tripping device
AU438813B2 (en)	1970-09-10	Process and device for processing highly viscous materials
CA796687A (en)	1968-10-15	Process and device for developing electrostatic fields
CA795740A (en)	1968-10-01	Process and device for developing electrostatic fields
CA665315A (en)	1963-06-18	Coin sorting or sorting and counting apparatus
AU418923B2 (en)	1970-01-22	Process and apparatus for making agglomerates from suspensions
CA826611A (en)	1969-11-04	Electrophotographic process and device