CA858727A - Fire detection devices - Google Patents

Fire detection devices

Info

Publication number
CA858727A
CA858727A CA858727A CA858727DA CA858727A CA 858727 A CA858727 A CA 858727A CA 858727 A CA858727 A CA 858727A CA 858727D A CA858727D A CA 858727DA CA 858727 A CA858727 A CA 858727A
Authority
CA
Canada
Prior art keywords
detection devices
fire detection
fire
devices
detection
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
CA858727A
Inventor
H. Olson John
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 CA858727A publication Critical patent/CA858727A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C99/00—Subject matter not provided for in other groups of this subclass
    • A62C99/009—Methods or equipment not provided for in groups A62C99/0009 - A62C99/0081
    • 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

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
CA858727A 1966-03-25 1966-03-25 Fire detection devices Expired CA858727A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA955910 1966-03-25

Publications (1)

Publication Number Publication Date
CA858727A true CA858727A (en) 1970-12-15

Family

ID=4142488

Family Applications (1)

Application Number Title Priority Date Filing Date
CA858727A Expired CA858727A (en) 1966-03-25 1966-03-25 Fire detection devices

Country Status (1)

Country Link
CA (1) CA858727A (en)

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