AU5912080A - A smoke detector - Google Patents

A smoke detector

Info

Publication number
AU5912080A
AU5912080A AU59120/80A AU5912080A AU5912080A AU 5912080 A AU5912080 A AU 5912080A AU 59120/80 A AU59120/80 A AU 59120/80A AU 5912080 A AU5912080 A AU 5912080A AU 5912080 A AU5912080 A AU 5912080A
Authority
AU
Australia
Prior art keywords
smoke detector
smoke
detector
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.)
Abandoned
Application number
AU59120/80A
Inventor
Makoto Hanyu
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.)
Secom Co Ltd
Original Assignee
Secom 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 claimed from JP7626179A external-priority patent/JPS562092A/en
Priority claimed from JP1197280A external-priority patent/JPS561339A/en
Application filed by Secom Co Ltd filed Critical Secom Co Ltd
Publication of AU5912080A publication Critical patent/AU5912080A/en
Abandoned 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)
AU59120/80A 1979-06-19 1980-06-06 A smoke detector Abandoned AU5912080A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP7626179 1979-06-19
JP7626179A JPS562092A (en) 1979-06-19 1979-06-19 Smoke sensor
JP1197280A JPS561339A (en) 1980-02-05 1980-02-05 Improved scattered-light type smoke sensor
JP1197280 1980-02-05

Publications (1)

Publication Number Publication Date
AU5912080A true AU5912080A (en) 1981-01-08

Family

ID=26347500

Family Applications (1)

Application Number Title Priority Date Filing Date
AU59120/80A Abandoned AU5912080A (en) 1979-06-19 1980-06-06 A smoke detector

Country Status (3)

Country Link
EP (1) EP0021671A1 (en)
AU (1) AU5912080A (en)
DK (1) DK237780A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU623279B2 (en) * 1989-09-26 1992-05-07 Matsushita Electric Works Ltd. Photoelectric smoke detector

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3723747A (en) * 1971-06-03 1973-03-27 Electro Signal Lab Photoelectric detector with compensating photocell
US3882477A (en) * 1973-03-26 1975-05-06 Peter H Mueller Smoke and heat detector incorporating an improved smoke chamber
US3916209A (en) * 1973-07-24 1975-10-28 Electro Signal Lab Vaned baffle for optical smoke detector
US4129383A (en) * 1976-02-10 1978-12-12 Chloride Incorporated Smoke detector and housing assembly therefore

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU623279B2 (en) * 1989-09-26 1992-05-07 Matsushita Electric Works Ltd. Photoelectric smoke detector

Also Published As

Publication number Publication date
DK237780A (en) 1980-12-20
EP0021671A1 (en) 1981-01-07

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