ZA71780B - Fire alarming system - Google Patents

Fire alarming system

Info

Publication number
ZA71780B
ZA71780B ZA710780A ZA71780A ZA71780B ZA 71780 B ZA71780 B ZA 71780B ZA 710780 A ZA710780 A ZA 710780A ZA 71780 A ZA71780 A ZA 71780A ZA 71780 B ZA71780 B ZA 71780B
Authority
ZA
South Africa
Prior art keywords
alarming system
fire alarming
fire
alarming
Prior art date
Application number
ZA710780A
Inventor
Y Honda
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
Application filed by Nittan Co Ltd filed Critical Nittan Co Ltd
Publication of ZA71780B publication Critical patent/ZA71780B/en

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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/04—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using a single signalling line, e.g. in a closed loop
ZA710780A 1970-03-31 1971-02-08 Fire alarming system ZA71780B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2684270 1970-03-31

Publications (1)

Publication Number Publication Date
ZA71780B true ZA71780B (en) 1971-10-27

Family

ID=12204508

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA710780A ZA71780B (en) 1970-03-31 1971-02-08 Fire alarming system

Country Status (6)

Country Link
US (1) US3778796A (en)
CA (1) CA939778A (en)
DE (1) DE2115759B2 (en)
FR (1) FR2083678B1 (en)
GB (1) GB1320651A (en)
ZA (1) ZA71780B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3946374A (en) * 1970-08-13 1976-03-23 Sci Systems, Inc. Rate-of-change combustion and contamination detection device
CA1014675A (en) * 1973-03-19 1977-07-26 Frank W. Emerson Emergency alarm system
US4287515A (en) * 1979-04-27 1981-09-01 Baker Industries, Inc. Fire detection system with multiple output signals
SE8202566L (en) * 1982-04-23 1983-10-24 Ericsson Telefon Ab L M PROCEDURE AND DEVICE FOR IDENTIFYING AN ALARMING DETECTOR IN A CIRCUIT WITH A PRESET NUMBER OF PARALLEL CONNECTED DETECTORS
DE68917405D1 (en) 1988-09-05 1994-09-15 Apollo Fire Detectors Ltd Arrangement for setting markings for identification of a fire detector.
GB2321747B (en) * 1997-01-30 2000-10-18 Rafiki Protection Limited Alarm system
US5889468A (en) * 1997-11-10 1999-03-30 Banga; William Robert Extra security smoke alarm system
FR2897968B1 (en) * 2006-02-24 2008-11-21 Airbus France Sas FIRE DETECTION SYSTEM AND AIRCRAFT EQUIPPED WITH SUCH A SYSTEM
US20090322526A1 (en) * 2008-06-25 2009-12-31 Lontka Karen D Arrangement and method for communicating with notification appliances

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2607220A (en) * 1947-04-14 1952-08-19 Philip W Martin Means for measuring conditions in deep wells
FR983536A (en) * 1949-02-03 1951-06-25 Safety radio installation
US2662933A (en) * 1951-04-26 1953-12-15 Bell Telephone Labor Inc Multiplex carrier telegraph system
NL108575C (en) * 1957-02-19
US3388389A (en) * 1964-06-09 1968-06-11 Davis Foreman Alarm systems
US3357009A (en) * 1964-12-14 1967-12-05 Miller Peter Condition-responsive system for impressing distinctive frequency alarm tone on transmission line
US3484775A (en) * 1965-10-20 1969-12-16 Wallace Dean Cline Theft prevention system
CH473431A (en) * 1966-05-09 1969-05-31 Cerberus Ag Werk Fuer Elektron Procedure for monitoring the operation of fire alarms

Also Published As

Publication number Publication date
DE2115759A1 (en) 1971-10-28
CA939778A (en) 1974-01-08
DE2115759B2 (en) 1973-02-01
GB1320651A (en) 1973-06-20
FR2083678A1 (en) 1971-12-17
US3778796A (en) 1973-12-11
FR2083678B1 (en) 1974-10-31

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