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FR2474209B1 - FIRE AND EXPLOSION DETECTION DEVICES - Google Patents

FIRE AND EXPLOSION DETECTION DEVICES

Info

Publication number
FR2474209B1
FR2474209B1 FR8100644A FR8100644A FR2474209B1 FR 2474209 B1 FR2474209 B1 FR 2474209B1 FR 8100644 A FR8100644 A FR 8100644A FR 8100644 A FR8100644 A FR 8100644A FR 2474209 B1 FR2474209 B1 FR 2474209B1
Authority
FR
France
Prior art keywords
fire
detection devices
explosion detection
explosion
devices
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.)
Expired
Application number
FR8100644A
Other languages
French (fr)
Other versions
FR2474209A1 (en
Inventor
David Nicholas Ball
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.)
Graviner Ltd
Original Assignee
Graviner 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
Application filed by Graviner Ltd filed Critical Graviner Ltd
Publication of FR2474209A1 publication Critical patent/FR2474209A1/en
Application granted granted Critical
Publication of FR2474209B1 publication Critical patent/FR2474209B1/en
Expired 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
    • G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Detection Mechanisms (AREA)
FR8100644A 1980-01-17 1981-01-15 FIRE AND EXPLOSION DETECTION DEVICES Expired FR2474209B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8001653 1980-01-17
GB8001655 1980-01-17

Publications (2)

Publication Number Publication Date
FR2474209A1 FR2474209A1 (en) 1981-07-24
FR2474209B1 true FR2474209B1 (en) 1986-06-27

Family

ID=26274179

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8100644A Expired FR2474209B1 (en) 1980-01-17 1981-01-15 FIRE AND EXPLOSION DETECTION DEVICES

Country Status (3)

Country Link
CA (1) CA1169522A (en)
DE (1) DE3100482A1 (en)
FR (1) FR2474209B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2076148B (en) * 1980-05-17 1984-08-30 Graviner Ltd Improvements in and relating to fire or explosion detection
IL65517A (en) * 1982-04-18 1988-02-29 Spectronix Ltd Discrimination circuitry for fire and explosion suppression apparatus

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1960218A1 (en) * 1969-12-01 1971-06-03 Rainer Portscht Temperature radiation detector for automatic fire detection or flame monitoring
FR2151148A5 (en) * 1971-08-20 1973-04-13 Detection Electro Fse
US3931521A (en) * 1973-06-29 1976-01-06 Hughes Aircraft Company Dual spectrum infrared fire detector
GB1550334A (en) * 1975-06-28 1979-08-15 Emi Ltd Radiation detecting arrangements
JPS586996B2 (en) * 1977-02-15 1983-02-07 国際技術開発株式会社 Flame detection method
JPS586995B2 (en) * 1977-02-15 1983-02-07 国際技術開発株式会社 Flame detection method
US4101767A (en) * 1977-05-20 1978-07-18 Sensors, Inc. Discriminating fire sensor
IL54137A (en) * 1978-02-27 1985-02-28 Spectronix Ltd Fire and explosion detection apparatus
DE2823410A1 (en) * 1978-04-25 1979-11-08 Cerberus Ag FLAME DETECTOR
US4206454A (en) * 1978-05-08 1980-06-03 Chloride Incorporated Two channel optical flame detector

Also Published As

Publication number Publication date
DE3100482A1 (en) 1981-11-19
DE3100482C2 (en) 1991-12-19
CA1169522A (en) 1984-06-19
FR2474209A1 (en) 1981-07-24

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Legal Events

Date Code Title Description
CA Change of address
CD Change of name or company name
ST Notification of lapse