FR479007A - Avertisseur de fumée ou appareil extincteur électro-automatique - Google Patents

Avertisseur de fumée ou appareil extincteur électro-automatique

Info

Publication number
FR479007A
FR479007A FR479007A FR479007DA FR479007A FR 479007 A FR479007 A FR 479007A FR 479007 A FR479007 A FR 479007A FR 479007D A FR479007D A FR 479007DA FR 479007 A FR479007 A FR 479007A
Authority
FR
France
Prior art keywords
electro
fire extinguisher
automatic fire
smoke alarm
smoke
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
FR479007A
Other languages
English (en)
Inventor
Eugene Steiger
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR479007A publication Critical patent/FR479007A/fr
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)
FR479007A 1915-06-12 1915-06-12 Avertisseur de fumée ou appareil extincteur électro-automatique Expired FR479007A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR479007T 1915-06-12

Publications (1)

Publication Number Publication Date
FR479007A true FR479007A (fr) 1916-02-02

Family

ID=1516444

Family Applications (1)

Application Number Title Priority Date Filing Date
FR479007A Expired FR479007A (fr) 1915-06-12 1915-06-12 Avertisseur de fumée ou appareil extincteur électro-automatique

Country Status (1)

Country Link
FR (1) FR479007A (fr)

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