CA939778A - Fire alarming system - Google Patents

Fire alarming system

Info

Publication number: CA939778A
Authority: CA; Canada
Prior art keywords: alarming system; fire alarming; fire; alarming
Prior art date: 1970-03-31
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

CA109,276A

Inventor

Yukio Honda

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.)

1970-03-31

Filing date

1971-03-31

Publication date

1974-01-08

1971-03-31 Application filed by Nittan Co Ltd filed Critical Nittan Co Ltd

1974-01-08 Application granted granted Critical

1974-01-08 Publication of CA939778A publication Critical patent/CA939778A/en

Status 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
- 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

Landscapes

Business, Economics & Management (AREA)
Emergency Management (AREA)
Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Chemical & Material Sciences (AREA)
Analytical Chemistry (AREA)
Fire Alarms (AREA)
Fire-Detection Mechanisms (AREA)

CA109,276A 1970-03-31 1971-03-31 Fire alarming system Expired CA939778A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number	Publication Date
CA939778A true CA939778A (en)	1974-01-08

Family

ID=12204508

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA109,276A Expired CA939778A (en)	1970-03-31	1971-03-31	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
EP0362985B2 (en) *	1988-09-05	1998-10-14	Apollo Fire Detectors Limited	Improved address setting means for fire detectors
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

1971
- 1971-02-08 ZA ZA710780A patent/ZA71780B/en unknown
- 1971-03-02 US US00120178A patent/US3778796A/en not_active Expired - Lifetime
- 1971-03-18 FR FR7109468A patent/FR2083678B1/fr not_active Expired
- 1971-03-31 CA CA109,276A patent/CA939778A/en not_active Expired
- 1971-03-31 DE DE19712115759 patent/DE2115759B2/en active Pending
- 1971-04-19 GB GB2523571*A patent/GB1320651A/en not_active Expired

Also Published As

Publication number	Publication date
GB1320651A (en)	1973-06-20
FR2083678A1 (en)	1971-12-17
DE2115759A1 (en)	1971-10-28
DE2115759B2 (en)	1973-02-01
FR2083678B1 (en)	1974-10-31
ZA71780B (en)	1971-10-27
US3778796A (en)	1973-12-11

Publication	Publication Date	Title
AU465213B2 (en)	1975-09-18	Fire alarm signalling system
AU463927B2 (en)	1975-08-07	Ionisation fire alarm
CA938385A (en)	1973-12-11	Fire detection system
CA956008A (en)	1974-10-08	Integrated fully supervised fire alarm system
CA979097A (en)	1975-12-02	Alarm system
CA934842A (en)	1973-10-02	Fire alarming system
CA930283A (en)	1973-07-17	Safety systems
CA948800A (en)	1974-06-04	Security alarm system
CA937650A (en)	1973-11-27	Fire alarming system
CA939778A (en)	1974-01-08	Fire alarming system
CA918780A (en)	1973-01-09	Alarm system
CA952996A (en)	1974-08-13	Warning system
CA952209A (en)	1974-07-30	Fire alarm system
CA948292A (en)	1974-05-28	Alarm system
CA908808A (en)	1972-08-29	Safety alarm
CA933679A (en)	1973-09-11	Fire alarming system
AU455486B2 (en)	1974-11-08	Alarm system
ZA711336B (en)	1971-11-24	Fire alarming system
AU435450B2 (en)	1972-09-07	Fire alarming system
CA834958A (en)	1970-02-17	Alarm system
AU455262B2 (en)	1974-11-04	Improved alarm system
ZA712036B (en)	1971-12-29	Fire alarming system
ZA714843B (en)	1972-04-26	Fire alarming system
AU460308B2 (en)	1972-04-13	Fire protection system
AU2578071A (en)	1972-09-07	Fire alarming system