EP0544956A1 - Circuit détecteur d'incendie - Google Patents

Circuit détecteur d'incendie Download PDF

Info

Publication number
EP0544956A1
EP0544956A1 EP91311354A EP91311354A EP0544956A1 EP 0544956 A1 EP0544956 A1 EP 0544956A1 EP 91311354 A EP91311354 A EP 91311354A EP 91311354 A EP91311354 A EP 91311354A EP 0544956 A1 EP0544956 A1 EP 0544956A1
Authority
EP
European Patent Office
Prior art keywords
voltage
alarm
sensor
fire
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.)
Withdrawn
Application number
EP91311354A
Other languages
German (de)
English (en)
Inventor
Jeffrey John Cutler
Roger Dennis Payne
Terence King
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.)
Apollo Fire Detectors Ltd
Original Assignee
Apollo Fire Detectors 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 Apollo Fire Detectors Ltd filed Critical Apollo Fire Detectors Ltd
Priority to EP91311354A priority Critical patent/EP0544956A1/fr
Publication of EP0544956A1 publication Critical patent/EP0544956A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00Fire alarms; Alarms responsive to explosion
    • G08B17/10Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/11Actuation 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)
EP91311354A 1991-12-05 1991-12-05 Circuit détecteur d'incendie Withdrawn EP0544956A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP91311354A EP0544956A1 (fr) 1991-12-05 1991-12-05 Circuit détecteur d'incendie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP91311354A EP0544956A1 (fr) 1991-12-05 1991-12-05 Circuit détecteur d'incendie

Publications (1)

Publication Number Publication Date
EP0544956A1 true EP0544956A1 (fr) 1993-06-09

Family

ID=8208496

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91311354A Withdrawn EP0544956A1 (fr) 1991-12-05 1991-12-05 Circuit détecteur d'incendie

Country Status (1)

Country Link
EP (1) EP0544956A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1793496A2 (fr) * 2005-12-05 2007-06-06 Delphi Technologies, Inc. Protection contre les courts-circuits pour circuit tampon dans des véhicules automobiles
RU2534959C2 (ru) * 2013-01-29 2014-12-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Владимирский государственный университет имени Александра Григорьевича и Николая Григорьевича Столетовых" (ВлГУ) Автономная система пожарной сигнализации

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3866195A (en) * 1973-05-07 1975-02-11 Fire Alert Company Combustion product detector and method of calibrating
US4409560A (en) * 1980-12-29 1983-10-11 Motorola, Inc. Output transient suppression circuit
FR2650421A1 (fr) * 1989-07-28 1991-02-01 Hugon Emile Circuit velocimetrique pour detecteur de fumees

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3866195A (en) * 1973-05-07 1975-02-11 Fire Alert Company Combustion product detector and method of calibrating
US4409560A (en) * 1980-12-29 1983-10-11 Motorola, Inc. Output transient suppression circuit
FR2650421A1 (fr) * 1989-07-28 1991-02-01 Hugon Emile Circuit velocimetrique pour detecteur de fumees

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1793496A2 (fr) * 2005-12-05 2007-06-06 Delphi Technologies, Inc. Protection contre les courts-circuits pour circuit tampon dans des véhicules automobiles
EP1793496A3 (fr) * 2005-12-05 2009-07-08 Delphi Technologies, Inc. Protection contre les courts-circuits pour circuit tampon dans des véhicules automobiles
RU2534959C2 (ru) * 2013-01-29 2014-12-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Владимирский государственный университет имени Александра Григорьевича и Николая Григорьевича Столетовых" (ВлГУ) Автономная система пожарной сигнализации

Similar Documents

Publication Publication Date Title
US5600524A (en) Intelligent ground fault circuit interrupter
US4030086A (en) Battery voltage detection and warning means
US4901060A (en) Increasing temperature warning device
US3038106A (en) Electrical network automatically responsive to a change in condition
KR900001031B1 (ko) 전기적 제어기
US4300099A (en) Fire detecting system
US4097851A (en) Sensitivity compensated fire detector
US3543056A (en) Proximity detection system using field effect transistors
JP2996754B2 (ja) 補償式熱感知器
US4267505A (en) Failure sensor for a gas detector
US3673589A (en) Intruder detector
EP0544956A1 (fr) Circuit détecteur d'incendie
US5212470A (en) Supervised fire alarm system
JPS5911871B2 (ja) 過電流感知回路
US4041479A (en) Output circuit of an ionization smoke sensor
US5400013A (en) Ionization type smoke detector
US6324040B1 (en) Sensor supply open load detector circuit
US3603957A (en) Intrusion alarm system and line voltage compensation
US4172252A (en) Monitoring arrangement for monitoring a change from a normal condition of any one of a plurality of condition sensing devices
US4163968A (en) Supervised loop alarm radio transmitter system
US4550313A (en) Fire detecting system
US5057779A (en) Temperature independent voltage monitor for use in a battery operated electronic device
US4364031A (en) Ionization smoke detector with increased operational reliability
US4142219A (en) Two-wire system including signal receiving section and detection section with protected relay
GB2075195A (en) Gas sensors

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

RBV Designated contracting states (corrected)

Designated state(s): CH DE FR GB LI

17P Request for examination filed

Effective date: 19931116

17Q First examination report despatched

Effective date: 19960125

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19960807