AU508072B2 - Electronic particle sensing aperture - Google Patents

Electronic particle sensing aperture

Info

Publication number: AU508072B2
Authority: AU; Australia
Prior art keywords: particle sensing; sensing aperture; electronic particle; electronic; aperture
Prior art date: 1977-02-15
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

AU32860/78A

Other versions

AU3286078A (en

Inventor

R. O. Starling J. D. James B. D. Godin T. J. Ginsberg G. Drbal V. J. and Ssulga A Simpson

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.)

Coulter Electronics Inc

Original Assignee

Coulter Electronics Inc

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.)

1977-02-15

Filing date

1978-01-31

Publication date

1980-03-06

1977-02-15 Priority claimed from US05/768,864 external-priority patent/US4090128A/en

1978-01-31 Application filed by Coulter Electronics Inc filed Critical Coulter Electronics Inc

1979-08-09 Publication of AU3286078A publication Critical patent/AU3286078A/en

1980-03-06 Application granted granted Critical

1980-03-06 Publication of AU508072B2 publication Critical patent/AU508072B2/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
- 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

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)
Sampling And Sample Adjustment (AREA)
Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Investigating Or Analysing Materials By Optical Means (AREA)

AU32860/78A 1977-02-15 1978-01-31 Electronic particle sensing aperture Expired AU508072B2 (en)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
US05/768,864 US4090128A (en)	1977-02-15	1977-02-15	Aperture module for use in particle testing apparatus
USUS768,864		1977-02-15
US86837478A	1978-01-10	1978-01-10
USUS868,374		1978-01-10

Publications (2)

Publication Number	Publication Date
AU3286078A AU3286078A (en)	1979-08-09
AU508072B2 true AU508072B2 (en)	1980-03-06

Family

ID=27118096

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AU32860/78A Expired AU508072B2 (en)	1977-02-15	1978-01-31	Electronic particle sensing aperture

Country Status (11)

Country	Link
JP (1)	JPS53121695A (en)
AU (1)	AU508072B2 (en)
CH (1)	CH623931A5 (en)
DE (1)	DE2806383A1 (en)
ES (1)	ES466979A1 (en)
FR (1)	FR2380549A1 (en)
GB (1)	GB1597904A (en)
IL (1)	IL53921A (en)
IT (1)	IT1101790B (en)
NL (1)	NL7801072A (en)
SE (1)	SE7801123L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2337597B (en) *	1996-11-20	2000-08-16	Microbial Systems Ltd	Particle sizing apparatus
GB9624096D0 (en) *	1996-11-20	1997-01-08	Microbial Systems Ltd	Apparatus and method of use thereof
US6418802B1 (en) *	1996-11-21	2002-07-16	Michael Anthony Wood	Particle sizing apparatus and method of use thereof
SE0101597D0 (en) *	2001-05-09	2001-05-09	Astrazeneca Ab	Apparatus and method of testing pressurized containers by non-invasive means

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3520316A (en) *	1963-12-12	1970-07-14	Bowles Eng Corp	Pressure-to-pressure transducer
US3746976A (en) *	1971-04-07	1973-07-17	Coulter Electronics	Self-cleaning aperture tube for coulter study apparatus
US3902115A (en) *	1973-09-26	1975-08-26	Coulter Electronics	Self-cleaning aperture tube for coulter study apparatus and electrolyte supply system therefor
US4014611A (en) *	1975-04-30	1977-03-29	Coulter Electronics, Inc.	Aperture module for use in particle testing apparatus

1978
- 1978-01-30 IL IL53921A patent/IL53921A/en unknown
- 1978-01-30 SE SE7801123A patent/SE7801123L/en unknown
- 1978-01-31 AU AU32860/78A patent/AU508072B2/en not_active Expired
- 1978-01-31 NL NL7801072A patent/NL7801072A/en not_active Application Discontinuation
- 1978-02-08 GB GB5056/78A patent/GB1597904A/en not_active Expired
- 1978-02-10 IT IT48010/78A patent/IT1101790B/en active
- 1978-02-14 CH CH158178A patent/CH623931A5/en not_active IP Right Cessation
- 1978-02-14 JP JP1506778A patent/JPS53121695A/en active Pending
- 1978-02-14 ES ES466979A patent/ES466979A1/en not_active Expired
- 1978-02-14 FR FR7804136A patent/FR2380549A1/en active Granted
- 1978-02-15 DE DE19782806383 patent/DE2806383A1/en not_active Withdrawn

Also Published As

Publication number	Publication date
GB1597904A (en)	1981-09-16
DE2806383A1 (en)	1978-08-17
FR2380549B1 (en)	1983-07-08
NL7801072A (en)	1978-08-17
AU3286078A (en)	1979-08-09
IT7848010A0 (en)	1978-02-10
IL53921A0 (en)	1978-04-30
JPS53121695A (en)	1978-10-24
ES466979A1 (en)	1979-08-16
FR2380549A1 (en)	1978-09-08
SE7801123L (en)	1978-08-16
CH623931A5 (en)	1981-06-30
IL53921A (en)	1979-12-30
IT1101790B (en)	1985-10-07

Publication	Publication Date	Title
AU517888B2 (en)	1981-09-03	Counting objects
JPS5423562A (en)	1979-02-22	Electronic counter
AU532741B2 (en)	1983-10-13	Electronic weigher
AU532664B2 (en)	1983-10-06	Electronic weigher
AU523100B2 (en)	1982-07-08	Electronic weigher
AU517791B2 (en)	1981-08-27	Hole sensing device
AU515491B2 (en)	1981-04-09	Electronic protection circuit
AU508072B2 (en)	1980-03-06	Electronic particle sensing aperture
AU515696B2 (en)	1981-04-16	Electronic thermometer
AU5128679A (en)	1981-04-02	Electronic weigher
JPS5391368A (en)	1978-08-11	Electronic parts
JPS5445385A (en)	1979-04-10	Particle board
JPS5464467A (en)	1979-05-24	Electronic part
AU3531678A (en)	1979-10-25	Electronic sirens
SU667982A1 (en)	1979-06-15	Particle counter
SU634967A1 (en)	1978-11-30	Particle mass
JPS55130091A (en)	1980-10-08	Electronic range
SU625759A1 (en)	1978-08-10	Ferromagnetic element
AU512750B2 (en)	1980-10-23	Electronic area meter
JPS55150589A (en)	1980-11-22	Electronic range
JPS55115290A (en)	1980-09-05	Electronic range
JPS5449645A (en)	1979-04-19	Electronic range
AU515690B2 (en)	1981-04-16	Electronic socketboard-module system
JPS5479990A (en)	1979-06-26	Electronic hemodynamometer
JPS5493885A (en)	1979-07-25	Electronic hemadynamometer