GB1121550A - Electronic apparatus for the study of particles in liquid suspension - Google Patents
Electronic apparatus for the study of particles in liquid suspensionInfo
- Publication number
- GB1121550A GB1121550A GB47696/65A GB4769665A GB1121550A GB 1121550 A GB1121550 A GB 1121550A GB 47696/65 A GB47696/65 A GB 47696/65A GB 4769665 A GB4769665 A GB 4769665A GB 1121550 A GB1121550 A GB 1121550A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aperture
- debris
- diaphragm
- pump
- nov
- 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
Links
- 239000002245 particle Substances 0.000 title abstract 3
- 239000006194 liquid suspension Substances 0.000 title 1
- 239000011521 glass Substances 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 239000004033 plastic Substances 0.000 abstract 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract 2
- 230000000903 blocking effect Effects 0.000 abstract 1
- 210000004369 blood Anatomy 0.000 abstract 1
- 239000008280 blood Substances 0.000 abstract 1
- 229920002678 cellulose Polymers 0.000 abstract 1
- 239000001913 cellulose Substances 0.000 abstract 1
- 210000000265 leukocyte Anatomy 0.000 abstract 1
- 229910052697 platinum Inorganic materials 0.000 abstract 1
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
-
- 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
- G01N2015/137—Cleaning
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)
Abstract
1,121,550. Counting particles. COULTER ELECTRONICS Ltd. Nov.10, 1965 [Nov. 25, 1964], No. 47696/65. Heading G1N. In apparatus for counting particles suspended in a liquid, e.g. leukocytes in a blood sample, as the liquid flows through an aperture in an insulating wall separating two electrodes (26,28), the aperture is formed in a flexible elastic diaphragm so that in the event of debris blocking the aperture, the diaphragm can expand, thereby allowing the debris to pass through the aperture. The diaphragm may be rubber or cellulose and may be secured under tension to the wall of a glass or plastic tube (10) by a glass, plastic or metal ring (52), Fig. 4 (not shown). If a metal ring is used, it may serve as electrode (26) and may be of platinum. In response to the presence of debris in the aperture, as detected by an increase in pressure in tube (10), an alarm (34) and an auxiliary pump (36) are operated automatically. The pump (36) applies further pressure to force the debris through the aperture. Alternatively, negative pressure may be applied to suck the diaphragm inward. Pump (36) may be operated manually.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US413872A US3395344A (en) | 1964-11-25 | 1964-11-25 | Particle studying apparatus with selfclearing scanner element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1121550A true GB1121550A (en) | 1968-07-31 |
Family
ID=23639013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB47696/65A Expired GB1121550A (en) | 1964-11-25 | 1965-11-10 | Electronic apparatus for the study of particles in liquid suspension |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3395344A (en) |
| CH (1) | CH433823A (en) |
| FR (1) | FR1451743A (en) |
| GB (1) | GB1121550A (en) |
| NL (1) | NL6515238A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2337600A (en) * | 1996-11-20 | 1999-11-24 | Microbial Systems Ltd | Particle sizing apparatus |
| GB2319618B (en) * | 1996-11-20 | 2000-08-23 | Microbial Systems Ltd | Particle sizing apparatus |
| US6418802B1 (en) * | 1996-11-21 | 2002-07-16 | Michael Anthony Wood | Particle sizing apparatus and method of use thereof |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3638677A (en) * | 1969-12-17 | 1972-02-01 | Soemia Baccarini | Device for use with apparatus for the counting of particles in suspension |
| US3815024A (en) * | 1970-02-20 | 1974-06-04 | Gen Electric | Particle analyzer |
| 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 |
| WO1995017659A1 (en) * | 1993-12-23 | 1995-06-29 | Abbott Laboratories | Method of making a stress relieved count probe |
| US5472144A (en) * | 1994-07-11 | 1995-12-05 | Elopak Systems A.G. | Filling apparatus clog-free nozzle screen |
| US5642860A (en) * | 1995-07-07 | 1997-07-01 | The Procter & Gamble Company | Pump sprayer for viscous or solids laden liquids |
| NZ537147A (en) * | 2004-12-13 | 2007-06-29 | Australo Ltd | Method and apparatus for particle analysis |
| US9022975B2 (en) * | 2012-09-12 | 2015-05-05 | Ethicon, Inc. | Airless, non-clogging tip assembly and device |
| AU2014405591B2 (en) | 2014-09-04 | 2020-05-21 | Ethicon, Inc. | Minimally clogging device for delivery of fluids and method of use |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL127771C (en) * | 1958-12-29 | |||
| US3288371A (en) * | 1964-04-22 | 1966-11-29 | Arthur E Broughton | Spray shower assembly with self-cleaning nozzle |
| US3259891A (en) * | 1964-05-01 | 1966-07-05 | Coulter Electronics | Debris alarm |
| US3266735A (en) * | 1964-12-04 | 1966-08-16 | Delman Co | Nozzle device for windshield clearing systems |
-
1964
- 1964-11-25 US US413872A patent/US3395344A/en not_active Expired - Lifetime
-
1965
- 1965-10-26 FR FR36171A patent/FR1451743A/en not_active Expired
- 1965-11-10 GB GB47696/65A patent/GB1121550A/en not_active Expired
- 1965-11-23 CH CH1619165A patent/CH433823A/en unknown
- 1965-11-24 NL NL6515238A patent/NL6515238A/xx unknown
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2337600A (en) * | 1996-11-20 | 1999-11-24 | Microbial Systems Ltd | Particle sizing apparatus |
| GB2337600B (en) * | 1996-11-20 | 2000-08-16 | Microbial Systems Ltd | Particle sizing apparatus |
| GB2319618B (en) * | 1996-11-20 | 2000-08-23 | Microbial Systems Ltd | Particle sizing apparatus |
| US6389912B1 (en) | 1996-11-20 | 2002-05-21 | Michael Anthony Wood | Particle sizing 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| NL6515238A (en) | 1966-05-26 |
| FR1451743A (en) | 1966-01-07 |
| US3395344A (en) | 1968-07-30 |
| CH433823A (en) | 1967-04-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1121550A (en) | Electronic apparatus for the study of particles in liquid suspension | |
| US3768084A (en) | Particle counter having a clog and bubble alarm | |
| GB1413043A (en) | Transducer installation | |
| GB980908A (en) | Liquid level indicators | |
| GB1341366A (en) | Self-cleaning aperture tube for coulter study apparatus | |
| US3515884A (en) | Detecting and counting apparatus for particles suspended in a liquid | |
| CH477220A (en) | Device for the separation of at least largely solid substances from suspensions | |
| FR1344468A (en) | Unclogging device and filtering devices or sediment separators incorporating this device | |
| GB1216636A (en) | Improvements in and relating to automatic particle counting apparatus | |
| SE398270B (en) | METHOD DEVICE FOR DETERMINING THE AVERAGE VOLUME OF IN AN ELECTROLYTIC CONDUCTIVE LIQUID SUSPENDED PARTICLES | |
| GB699617A (en) | A device for separating impurities from a fluid circulating through a conduit | |
| US3056908A (en) | Electrochemical detector | |
| US2497823A (en) | Radiation measuring device for air filters | |
| GB903505A (en) | Improvements in and relating to liquid filter apparatus | |
| FR1519378A (en) | Plate press with device ensuring at least the centering of the tool-holder frame and the corresponding tool-holder frame | |
| JPS57146141A (en) | Air bubble detector | |
| GB1216752A (en) | Particle counting device | |
| GB1305697A (en) | ||
| GB1061759A (en) | Installation for detecting a liquid,more particularly in piping | |
| SU1053855A1 (en) | Filter signalling device | |
| SE397587B (en) | METHOD DEVICE FOR DETERMINING THE AVERAGE VOLUME OF IN AN ELECTROLYTIC CONDUCTIVE LIQUID SUSPENDED PARTICLES | |
| GB797238A (en) | Sight glass, for observing liquid in a pipe | |
| GB1015768A (en) | Flow-through sample apparatus for use with particle study device | |
| Khaiutin et al. | Drop counter, photocell, amplifier, and counting down circuit for measurement of blood flow with pen-recorder | |
| Anderson et al. | An Air Permeameter for Fabrics |