EP0135362A3 - Optical smoke detectors - Google Patents

Optical smoke detectors Download PDF

Info

Publication number
EP0135362A3
EP0135362A3 EP84305514A EP84305514A EP0135362A3 EP 0135362 A3 EP0135362 A3 EP 0135362A3 EP 84305514 A EP84305514 A EP 84305514A EP 84305514 A EP84305514 A EP 84305514A EP 0135362 A3 EP0135362 A3 EP 0135362A3
Authority
EP
European Patent Office
Prior art keywords
smoke detectors
optical smoke
optical
detectors
smoke
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.)
Granted
Application number
EP84305514A
Other versions
EP0135362A2 (en
EP0135362B1 (en
Inventor
Martin Terence Cole
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.)
COLE, MARTIN TERENCE
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.)
Filing date
Publication date
Priority claimed from AU31843/84A external-priority patent/AU577538B2/en
Application filed by Individual filed Critical Individual
Priority to AT84305514T priority Critical patent/ATE51963T1/en
Publication of EP0135362A2 publication Critical patent/EP0135362A2/en
Publication of EP0135362A3 publication Critical patent/EP0135362A3/en
Application granted granted Critical
Publication of EP0135362B1 publication Critical patent/EP0135362B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR 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 OR 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

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
EP84305514A 1983-08-12 1984-08-13 Optical smoke detectors Expired - Lifetime EP0135362B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84305514T ATE51963T1 (en) 1983-08-12 1984-08-13 OPTICAL SMOKE DETECTORS.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPG082283 1983-08-12
AU822/83 1983-08-12
AU31843/84A AU577538B2 (en) 1983-08-12 1984-08-10 Optical smoke detectors

Publications (3)

Publication Number Publication Date
EP0135362A2 EP0135362A2 (en) 1985-03-27
EP0135362A3 true EP0135362A3 (en) 1986-06-25
EP0135362B1 EP0135362B1 (en) 1990-04-11

Family

ID=25621949

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84305514A Expired - Lifetime EP0135362B1 (en) 1983-08-12 1984-08-13 Optical smoke detectors

Country Status (1)

Country Link
EP (1) EP0135362B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0462278A4 (en) * 1990-01-05 1993-03-03 Sredneaziatsky Nauchno-Issledovatelsky I Proektny Institut Tsvetnoi Mettallurgii Device for measuring gas optical density

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2812686A (en) * 1953-12-22 1957-11-12 Johns Manville Smoke photometer
DE1797079A1 (en) * 1968-08-12 1971-09-30 Elbe Kamera Gmbh Flashing device with photoelectric flash timing device
FR2334097A1 (en) * 1975-12-01 1977-07-01 Svenska Traeforskningsinst METHOD FOR DETERMINING CONCENTRATIONS, ESPECIALLY OF SUBSTANCES IN SUSPENSION IN LIQUIDS
FR2348502A1 (en) * 1976-04-15 1977-11-10 Luderitz Willy Trifocal mirror reflector system - provides single common complementary focus and two other foci for use with lamp having multiple light sources
DE2624977A1 (en) * 1976-06-03 1977-12-08 Rumpf Hans Prof Dr Ing Scattered light measuring device - has illumination and observation system at right angle to each other
FR2503329A1 (en) * 1981-03-31 1982-10-08 Kaiser Gmbh Co Leuchten Kg Lic DOWNLIGHTING LIGHTING APPARATUS

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2812686A (en) * 1953-12-22 1957-11-12 Johns Manville Smoke photometer
DE1797079A1 (en) * 1968-08-12 1971-09-30 Elbe Kamera Gmbh Flashing device with photoelectric flash timing device
FR2334097A1 (en) * 1975-12-01 1977-07-01 Svenska Traeforskningsinst METHOD FOR DETERMINING CONCENTRATIONS, ESPECIALLY OF SUBSTANCES IN SUSPENSION IN LIQUIDS
FR2348502A1 (en) * 1976-04-15 1977-11-10 Luderitz Willy Trifocal mirror reflector system - provides single common complementary focus and two other foci for use with lamp having multiple light sources
DE2624977A1 (en) * 1976-06-03 1977-12-08 Rumpf Hans Prof Dr Ing Scattered light measuring device - has illumination and observation system at right angle to each other
FR2503329A1 (en) * 1981-03-31 1982-10-08 Kaiser Gmbh Co Leuchten Kg Lic DOWNLIGHTING LIGHTING APPARATUS

Also Published As

Publication number Publication date
EP0135362A2 (en) 1985-03-27
EP0135362B1 (en) 1990-04-11

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