SE385057B - Rokgasdetektor med en ljuskella och en fotocell - Google Patents

Rokgasdetektor med en ljuskella och en fotocell

Info

Publication number
SE385057B
SE385057B SE7216215A SE1621572A SE385057B SE 385057 B SE385057 B SE 385057B SE 7216215 A SE7216215 A SE 7216215A SE 1621572 A SE1621572 A SE 1621572A SE 385057 B SE385057 B SE 385057B
Authority
SE
Sweden
Prior art keywords
photocell
light source
gas detector
smoke gas
smoke
Prior art date
Application number
SE7216215A
Other languages
English (en)
Swedish (sv)
Inventor
A W Vasel
Original Assignee
Pyrotector 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.)
Filing date
Publication date
Application filed by Pyrotector Inc filed Critical Pyrotector Inc
Publication of SE385057B publication Critical patent/SE385057B/xx

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
    • G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
    • G08B17/113—Constructional details

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire-Detection Mechanisms (AREA)
SE7216215A 1971-12-13 1972-12-22 Rokgasdetektor med en ljuskella och en fotocell SE385057B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20746171A 1971-12-13 1971-12-13

Publications (1)

Publication Number Publication Date
SE385057B true SE385057B (sv) 1976-05-31

Family

ID=22770642

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7216215A SE385057B (sv) 1971-12-13 1972-12-22 Rokgasdetektor med en ljuskella och en fotocell

Country Status (7)

Country Link
US (1) US3789383A (https=)
JP (1) JPS4866794A (https=)
AU (1) AU462064B2 (https=)
DE (1) DE2251046B2 (https=)
FR (1) FR2165480A5 (https=)
GB (1) GB1395245A (https=)
SE (1) SE385057B (https=)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3987358A (en) * 1972-01-26 1976-10-19 The Walter Kidde & Company, Inc. Condition detector circuit
US3898553A (en) * 1974-04-26 1975-08-05 Rca Corp Circuit for supplying power to a load
US4206456A (en) * 1975-06-23 1980-06-03 Chloride Incorporated Smoke detector
DE2965448D1 (en) * 1978-09-29 1983-07-07 Chubb Fire Security Ltd Heat detector circuit
WO1989007814A1 (en) * 1988-02-16 1989-08-24 Myers Holdings Pty Ltd; Security system for an environment

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2069160A (en) * 1933-09-01 1937-01-26 Kidde & Co Walter Regulated voltage system for detecting suspended matter in fluids
US2415179A (en) * 1944-09-23 1947-02-04 Jr Samuel C Hurley Photoelectric inspection device
US3314058A (en) * 1964-01-13 1967-04-11 Aseco Inc Electronic smoke detector and fire alarm
US3403315A (en) * 1965-10-22 1968-09-24 Smith Corp A O Condition responsive control circuit connected to gate a triggered switch
US3467817A (en) * 1967-02-23 1969-09-16 West Bend Co Temperature control circuit

Also Published As

Publication number Publication date
US3789383A (en) 1974-01-29
FR2165480A5 (https=) 1973-08-03
JPS4866794A (https=) 1973-09-12
AU462064B2 (en) 1975-06-12
AU4786672A (en) 1974-04-26
GB1395245A (en) 1975-05-21
DE2251046B2 (de) 1975-08-14
DE2251046A1 (de) 1973-06-20

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