FR1442193A - Fire detector - Google Patents

Fire detector

Info

Publication number
FR1442193A
FR1442193A FR27609A FR27609A FR1442193A FR 1442193 A FR1442193 A FR 1442193A FR 27609 A FR27609 A FR 27609A FR 27609 A FR27609 A FR 27609A FR 1442193 A FR1442193 A FR 1442193A
Authority
FR
France
Prior art keywords
fire detector
fire
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.)
Expired
Application number
FR27609A
Other languages
French (fr)
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.)
American District Telegraph Co
Original Assignee
American District Telegraph Co
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 American District Telegraph Co filed Critical American District Telegraph Co
Priority to FR27609A priority Critical patent/FR1442193A/en
Application granted granted Critical
Publication of FR1442193A publication Critical patent/FR1442193A/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
    • G08B17/10—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
    • 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)
FR27609A 1965-08-06 1965-08-06 Fire detector Expired FR1442193A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR27609A FR1442193A (en) 1965-08-06 1965-08-06 Fire detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR27609A FR1442193A (en) 1965-08-06 1965-08-06 Fire detector

Publications (1)

Publication Number Publication Date
FR1442193A true FR1442193A (en) 1966-06-10

Family

ID=8586239

Family Applications (1)

Application Number Title Priority Date Filing Date
FR27609A Expired FR1442193A (en) 1965-08-06 1965-08-06 Fire detector

Country Status (1)

Country Link
FR (1) FR1442193A (en)

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