CA933679A - Fire alarming system - Google Patents

Fire alarming system

Info

Publication number
CA933679A
CA933679A CA120142A CA120142A CA933679A CA 933679 A CA933679 A CA 933679A CA 120142 A CA120142 A CA 120142A CA 120142 A CA120142 A CA 120142A CA 933679 A CA933679 A CA 933679A
Authority
CA
Canada
Prior art keywords
alarming system
fire alarming
fire
alarming
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
CA120142A
Other versions
CA120142S (en
Inventor
Sasaki Koju
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.)
Nittan Co Ltd
Original Assignee
Nittan 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
Priority claimed from JP6927570A external-priority patent/JPS4844079B1/ja
Priority claimed from JP7236570A external-priority patent/JPS49398B1/ja
Priority claimed from JP7562870A external-priority patent/JPS4929797B1/ja
Application filed by Nittan Co Ltd filed Critical Nittan Co Ltd
Application granted granted Critical
Publication of CA933679A publication Critical patent/CA933679A/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
    • G08B17/11—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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Fire Alarms (AREA)
CA120142A 1970-08-10 1971-08-09 Fire alarming system Expired CA933679A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP6927570A JPS4844079B1 (en) 1970-08-10 1970-08-10
JP6927670 1970-08-10
JP7236570A JPS49398B1 (en) 1970-08-20 1970-08-20
JP7562870A JPS4929797B1 (en) 1970-08-31 1970-08-31

Publications (1)

Publication Number Publication Date
CA933679A true CA933679A (en) 1973-09-11

Family

ID=27465102

Family Applications (1)

Application Number Title Priority Date Filing Date
CA120142A Expired CA933679A (en) 1970-08-10 1971-08-09 Fire alarming system

Country Status (4)

Country Link
CA (1) CA933679A (en)
CH (1) CH540540A (en)
FR (1) FR2102159B1 (en)
GB (1) GB1315602A (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH497755A (en) * 1969-06-24 1970-10-15 Cerberus Ag Ionization fire alarms

Also Published As

Publication number Publication date
FR2102159A1 (en) 1972-04-07
DE2140121A1 (en) 1972-02-17
FR2102159B1 (en) 1975-02-07
CH540540A (en) 1973-08-15
GB1315602A (en) 1973-05-02
DE2140121B2 (en) 1972-07-06

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