DE2736224A1 - Optischer feuerdetektor - Google Patents

Optischer feuerdetektor

Info

Publication number
DE2736224A1
DE2736224A1 DE19772736224 DE2736224A DE2736224A1 DE 2736224 A1 DE2736224 A1 DE 2736224A1 DE 19772736224 DE19772736224 DE 19772736224 DE 2736224 A DE2736224 A DE 2736224A DE 2736224 A1 DE2736224 A1 DE 2736224A1
Authority
DE
Germany
Prior art keywords
radiation
fire detector
multiplier
optical fire
phase
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
DE19772736224
Other languages
German (de)
English (en)
Other versions
DE2736224C2 (enrdf_load_stackoverflow
Inventor
Erik Gustaf Lindgren
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.)
Cerberus AG
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of DE2736224A1 publication Critical patent/DE2736224A1/de
Application granted granted Critical
Publication of DE2736224C2 publication Critical patent/DE2736224C2/de
Granted 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

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)
DE19772736224 1976-09-01 1977-08-11 Optischer feuerdetektor Granted DE2736224A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7609670-0A SE395554B (sv) 1976-09-01 1976-09-01 Optisk branddetektor

Publications (2)

Publication Number Publication Date
DE2736224A1 true DE2736224A1 (de) 1978-03-09
DE2736224C2 DE2736224C2 (enrdf_load_stackoverflow) 1991-02-21

Family

ID=20328778

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772736224 Granted DE2736224A1 (de) 1976-09-01 1977-08-11 Optischer feuerdetektor

Country Status (13)

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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2051640A1 (enrdf_load_stackoverflow) * 1970-10-21 1972-05-31
DE2340041A1 (de) * 1972-08-11 1974-04-04 Chubb Fire Security Ltd Feuermelder
DE2714130A1 (de) * 1976-04-15 1977-10-27 Ericsson Telefon Ab L M Optischer feuerdetektor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2051640A1 (enrdf_load_stackoverflow) * 1970-10-21 1972-05-31
DE2340041A1 (de) * 1972-08-11 1974-04-04 Chubb Fire Security Ltd Feuermelder
DE2714130A1 (de) * 1976-04-15 1977-10-27 Ericsson Telefon Ab L M Optischer feuerdetektor

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
US-Z.: Electronics, 5. Sept. 1974, S. 113, 114 *
US-Z.: Electronics, 9. Januar 1975, S. 113 *

Also Published As

Publication number Publication date
FI772470A7 (fi) 1978-03-02
FI63125B (fi) 1982-12-31
CA1102429A (en) 1981-06-02
AU2838477A (en) 1979-03-08
CH621425A5 (en) 1981-01-30
DK148226B (da) 1985-05-06
FI63125C (fi) 1983-04-11
SE395554B (sv) 1977-08-15
NO140519C (no) 1979-09-12
DE2736224C2 (enrdf_load_stackoverflow) 1991-02-21
AU510627B2 (en) 1980-07-03
NO140519B (no) 1979-06-05
DK148226C (da) 1985-12-30
NO773020L (no) 1978-03-02
GB1566624A (en) 1980-05-08
FR2363840B2 (enrdf_load_stackoverflow) 1983-02-04
NL7709640A (nl) 1978-03-03
DK386877A (da) 1978-03-02
BE858192A (fr) 1977-12-16
FR2363840A2 (fr) 1978-03-31
IT1088004B (it) 1985-06-04

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8125 Change of the main classification

Ipc: G08B 17/12

8127 New person/name/address of the applicant

Owner name: CERBERUS AG, MAENNEDORF, ZUERICH, CH

8128 New person/name/address of the agent

Representative=s name: EITLE, W., DIPL.-ING. HOFFMANN, K., DIPL.-ING. DR.

8176 Proceedings suspended because of application no:

Ref document number: 2714130

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8339 Ceased/non-payment of the annual fee