DK386877A - OPTICAL FIRE DETECTOR - Google Patents

OPTICAL FIRE DETECTOR

Info

Publication number
DK386877A
DK386877A DK386877A DK386877A DK386877A DK 386877 A DK386877 A DK 386877A DK 386877 A DK386877 A DK 386877A DK 386877 A DK386877 A DK 386877A DK 386877 A DK386877 A DK 386877A
Authority
DK
Denmark
Prior art keywords
fire detector
optical fire
optical
detector
fire
Prior art date
Application number
DK386877A
Other languages
Danish (da)
Other versions
DK148226B (en
DK148226C (en
Inventor
E G Lindgren
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of DK386877A publication Critical patent/DK386877A/en
Publication of DK148226B publication Critical patent/DK148226B/en
Application granted granted Critical
Publication of DK148226C publication Critical patent/DK148226C/en

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

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)
DK386877A 1976-09-01 1977-08-31 OPTICAL FIRE DETECTOR DK148226C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7609670-0A SE395554B (en) 1976-09-01 1976-09-01 OPTICAL FIRE DETECTOR
SE7609670 1976-09-01

Publications (3)

Publication Number Publication Date
DK386877A true DK386877A (en) 1978-03-02
DK148226B DK148226B (en) 1985-05-06
DK148226C DK148226C (en) 1985-12-30

Family

ID=20328778

Family Applications (1)

Application Number Title Priority Date Filing Date
DK386877A DK148226C (en) 1976-09-01 1977-08-31 OPTICAL FIRE DETECTOR

Country Status (13)

Country Link
AU (1) AU510627B2 (en)
BE (1) BE858192A (en)
CA (1) CA1102429A (en)
CH (1) CH621425A5 (en)
DE (1) DE2736224A1 (en)
DK (1) DK148226C (en)
FI (1) FI63125C (en)
FR (1) FR2363840A2 (en)
GB (1) GB1566624A (en)
IT (1) IT1088004B (en)
NL (1) NL7709640A (en)
NO (1) NO140519C (en)
SE (1) SE395554B (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2051640B2 (en) * 1970-10-21 1972-05-31 Preußag AG, Feuerschutz, 2060 Bad Oldesloe PROCEDURE FOR FLAME DETECTION AND FLAME DETECTORS FOR CARRYING OUT THE PROCEDURE
GB1405615A (en) * 1972-08-11 1975-09-10 Chubb Fire Security Ltd Fire alarms
SE7604502L (en) * 1976-04-15 1977-10-16 Ericsson Telefon Ab L M OPTICAL FIRE DETECTOR

Also Published As

Publication number Publication date
DE2736224C2 (en) 1991-02-21
GB1566624A (en) 1980-05-08
CH621425A5 (en) 1981-01-30
DK148226B (en) 1985-05-06
NO140519B (en) 1979-06-05
SE395554B (en) 1977-08-15
NO773020L (en) 1978-03-02
FR2363840A2 (en) 1978-03-31
FI772470A (en) 1978-03-02
FR2363840B2 (en) 1983-02-04
FI63125C (en) 1983-04-11
BE858192A (en) 1977-12-16
DE2736224A1 (en) 1978-03-09
NL7709640A (en) 1978-03-03
DK148226C (en) 1985-12-30
AU2838477A (en) 1979-03-08
NO140519C (en) 1979-09-12
CA1102429A (en) 1981-06-02
FI63125B (en) 1982-12-31
AU510627B2 (en) 1980-07-03
IT1088004B (en) 1985-06-04

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Legal Events

Date Code Title Description
PBP Patent lapsed