GB786885A - Improvements in or relating to particle counting apparatus - Google Patents

Improvements in or relating to particle counting apparatus

Info

Publication number
GB786885A
GB786885A GB7985/53A GB798553A GB786885A GB 786885 A GB786885 A GB 786885A GB 7985/53 A GB7985/53 A GB 7985/53A GB 798553 A GB798553 A GB 798553A GB 786885 A GB786885 A GB 786885A
Authority
GB
United Kingdom
Prior art keywords
pulse
switch
particle
valve
head
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
GB7985/53A
Other languages
English (en)
Inventor
Hugh Alexander Dell
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.)
Mullard Radio Valve Co Ltd
Original Assignee
Mullard Radio Valve Co Ltd
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
Priority to BE527537D priority Critical patent/BE527537A/xx
Application filed by Mullard Radio Valve Co Ltd filed Critical Mullard Radio Valve Co Ltd
Priority to GB7985/53A priority patent/GB786885A/en
Priority to US418050A priority patent/US2791697A/en
Priority to FR1099236D priority patent/FR1099236A/fr
Priority to DEN8668A priority patent/DE1039265B/de
Publication of GB786885A publication Critical patent/GB786885A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M11/00—Counting of objects distributed at random, e.g. on a surface
    • G06M11/02—Counting of objects distributed at random, e.g. on a surface using an electron beam scanning a surface line by line, e.g. of blood cells on a substrate
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M11/00—Counting of objects distributed at random, e.g. on a surface
    • G06M11/02—Counting of objects distributed at random, e.g. on a surface using an electron beam scanning a surface line by line, e.g. of blood cells on a substrate
    • G06M11/04—Counting of objects distributed at random, e.g. on a surface using an electron beam scanning a surface line by line, e.g. of blood cells on a substrate with provision for distinguishing between different sizes of objects
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K21/00—Details of pulse counters or frequency dividers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Particle Accelerators (AREA)
GB7985/53A 1953-03-23 1953-03-23 Improvements in or relating to particle counting apparatus Expired GB786885A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE527537D BE527537A (US20100056889A1-20100304-C00004.png) 1953-03-23
GB7985/53A GB786885A (en) 1953-03-23 1953-03-23 Improvements in or relating to particle counting apparatus
US418050A US2791697A (en) 1953-03-23 1954-03-23 Particle counting apparatus
FR1099236D FR1099236A (fr) 1953-03-23 1954-03-23 Dispositif compteur de particules
DEN8668A DE1039265B (de) 1953-03-23 1954-03-23 Teilchenzaehlvorrichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7985/53A GB786885A (en) 1953-03-23 1953-03-23 Improvements in or relating to particle counting apparatus

Publications (1)

Publication Number Publication Date
GB786885A true GB786885A (en) 1957-11-27

Family

ID=9843551

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7985/53A Expired GB786885A (en) 1953-03-23 1953-03-23 Improvements in or relating to particle counting apparatus

Country Status (5)

Country Link
US (1) US2791697A (US20100056889A1-20100304-C00004.png)
BE (1) BE527537A (US20100056889A1-20100304-C00004.png)
DE (1) DE1039265B (US20100056889A1-20100304-C00004.png)
FR (1) FR1099236A (US20100056889A1-20100304-C00004.png)
GB (1) GB786885A (US20100056889A1-20100304-C00004.png)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2958464A (en) * 1953-06-26 1960-11-01 Bayer Ag Process of and apparatus for the automatic counting of particles of any size and shape
US3019972A (en) * 1954-11-30 1962-02-06 West Point Mfg Co Apparatus for counting neps
US5119190A (en) * 1963-03-11 1992-06-02 Lemelson Jerome H Controlling systems and methods for scanning and inspecting images
US5283641A (en) * 1954-12-24 1994-02-01 Lemelson Jerome H Apparatus and methods for automated analysis
US5144421A (en) * 1954-12-24 1992-09-01 Lemelson Jerome H Methods and apparatus for scanning objects and generating image information
US4984073A (en) * 1954-12-24 1991-01-08 Lemelson Jerome H Methods and systems for scanning and inspecting images
BE544010A (US20100056889A1-20100304-C00004.png) * 1954-12-29 1900-01-01
US2948469A (en) * 1955-08-08 1960-08-09 Coal Industry Patents Ltd Apparatus for counting particles
US2918216A (en) * 1956-08-31 1959-12-22 Rca Corp Particle counting apparatus
US2936953A (en) * 1956-09-13 1960-05-17 American Cyanamid Co Apparatus for extracting particle size data
GB835901A (en) * 1956-09-25 1960-05-25 Rank Cintel Ltd Improvements in or relating to methods of and apparatus for sizing objects
US2957104A (en) * 1956-12-18 1960-10-18 Richard M Roppel Analogue to digital converter
US2948470A (en) * 1957-03-15 1960-08-09 Du Mont Allen B Lab Inc Particle counter
BE556390A (fr) * 1957-04-04 1957-04-30 Bosch F J G Van Den Compteurs electroniques
US3013467A (en) * 1957-11-07 1961-12-19 Minsky Marvin Microscopy apparatus
US3028501A (en) * 1959-06-01 1962-04-03 Rieter Joh Jacob & Cie Ag Method for measuring the volume or the weight of bodies having different size and irregularly passing through a channel or of accumulations of such bodies, particularly of fibre tufts
US3173015A (en) * 1962-03-20 1965-03-09 Gkn Group Services Ltd Electronic outline follower and reject system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2427319A (en) * 1945-01-12 1947-09-09 Rca Corp Beverage inspection machine
US2494441A (en) * 1948-07-28 1950-01-10 Rca Corp Method and apparatus for electronically determining particle size distribution
DE919268C (de) * 1950-05-04 1954-10-18 David William Gillings Verfahren und Einrichtung zum Zaehlen kleiner Teilchen, insbesondere fuer Kohlenstaub-Untersuchungen
BE509736A (US20100056889A1-20100304-C00004.png) * 1951-03-06
BE512383A (US20100056889A1-20100304-C00004.png) * 1951-06-27

Also Published As

Publication number Publication date
DE1039265B (de) 1958-09-18
US2791697A (en) 1957-05-07
FR1099236A (fr) 1955-08-31
BE527537A (US20100056889A1-20100304-C00004.png)

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