FR1239104A - Avertisseur photo-électrique de fumée - Google Patents

Avertisseur photo-électrique de fumée

Info

Publication number
FR1239104A
FR1239104A FR808355A FR808355A FR1239104A FR 1239104 A FR1239104 A FR 1239104A FR 808355 A FR808355 A FR 808355A FR 808355 A FR808355 A FR 808355A FR 1239104 A FR1239104 A FR 1239104A
Authority
FR
France
Prior art keywords
smoke alarm
photoelectric smoke
photoelectric
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
FR808355A
Other languages
English (en)
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.)
D H W Schultz & Sohn
Original Assignee
D H W Schultz & Sohn
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 D H W Schultz & Sohn filed Critical D H W Schultz & Sohn
Application granted granted Critical
Publication of FR1239104A publication Critical patent/FR1239104A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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 SYSTEMS, e.g. PERSONAL 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)
FR808355A 1958-12-24 1959-10-23 Avertisseur photo-électrique de fumée Expired FR1239104A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1239104X 1958-12-24

Publications (1)

Publication Number Publication Date
FR1239104A true FR1239104A (fr) 1960-08-19

Family

ID=7735842

Family Applications (1)

Application Number Title Priority Date Filing Date
FR808355A Expired FR1239104A (fr) 1958-12-24 1959-10-23 Avertisseur photo-électrique de fumée

Country Status (1)

Country Link
FR (1) FR1239104A (fr)

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