DK237780A - Roegdetektor - Google Patents

Roegdetektor

Info

Publication number
DK237780A
DK237780A DK237780A DK237780A DK237780A DK 237780 A DK237780 A DK 237780A DK 237780 A DK237780 A DK 237780A DK 237780 A DK237780 A DK 237780A DK 237780 A DK237780 A DK 237780A
Authority
DK
Denmark
Prior art keywords
smoke detector
smoke
detector
Prior art date
Application number
DK237780A
Other languages
English (en)
Inventor
M Hanyu
Original Assignee
Secon 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/ja
Priority claimed from JP1197280A external-priority patent/JPS561339A/ja
Application filed by Secon Co Ltd filed Critical Secon Co Ltd
Publication of DK237780A publication Critical patent/DK237780A/da

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)
DK237780A 1979-06-19 1980-06-03 Roegdetektor DK237780A (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
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

Publications (1)

Publication Number Publication Date
DK237780A true DK237780A (da) 1980-12-20

Family

ID=26347500

Family Applications (1)

Application Number Title Priority Date Filing Date
DK237780A DK237780A (da) 1979-06-19 1980-06-03 Roegdetektor

Country Status (3)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2533653B2 (ja) * 1989-09-26 1996-09-11 松下電工株式会社 光電式煙感知器

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

Also Published As

Publication number Publication date
AU5912080A (en) 1981-01-08
EP0021671A1 (en) 1981-01-07

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Legal Events

Date Code Title Description
AHS Application shelved for other reasons than non-payment