FR966498A - Cold Cathode Tube Smoke Detector - Google Patents

Cold Cathode Tube Smoke Detector

Info

Publication number
FR966498A
FR966498A FR966498DA FR966498A FR 966498 A FR966498 A FR 966498A FR 966498D A FR966498D A FR 966498DA FR 966498 A FR966498 A FR 966498A
Authority
FR
France
Prior art keywords
cold cathode
cathode tube
smoke detector
tube smoke
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
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.)
Ronald Trist and Co Ltd
Original Assignee
Ronald Trist and Co 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 Ronald Trist and Co Ltd filed Critical Ronald Trist and Co Ltd
Application granted granted Critical
Publication of FR966498A publication Critical patent/FR966498A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR966498D 1948-05-14 1948-05-14 Cold Cathode Tube Smoke Detector Expired FR966498A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR966498T 1948-05-14

Publications (1)

Publication Number Publication Date
FR966498A true FR966498A (en) 1950-10-11

Family

ID=9500017

Family Applications (1)

Application Number Title Priority Date Filing Date
FR966498D Expired FR966498A (en) 1948-05-14 1948-05-14 Cold Cathode Tube Smoke Detector

Country Status (1)

Country Link
FR (1) FR966498A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2964640A (en) * 1957-05-31 1960-12-13 Saint Gobain Turbidimeter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2964640A (en) * 1957-05-31 1960-12-13 Saint Gobain Turbidimeter

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