EP0227320A3 - Fire detector - Google Patents

Fire detector

Info

Publication number
EP0227320A3
EP0227320A3 EP86309241A EP86309241A EP0227320A3 EP 0227320 A3 EP0227320 A3 EP 0227320A3 EP 86309241 A EP86309241 A EP 86309241A EP 86309241 A EP86309241 A EP 86309241A EP 0227320 A3 EP0227320 A3 EP 0227320A3
Authority
EP
European Patent Office
Prior art keywords
fire detector
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.)
Granted
Application number
EP86309241A
Other versions
EP0227320B1 (en
EP0227320A2 (en
Inventor
Stephen Henry Ellwood
David Appleby
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.)
Novar Systems Ltd
Original Assignee
Gent 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 Gent Ltd filed Critical Gent Ltd
Publication of EP0227320A2 publication Critical patent/EP0227320A2/en
Publication of EP0227320A3 publication Critical patent/EP0227320A3/en
Application granted granted Critical
Publication of EP0227320B1 publication Critical patent/EP0227320B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G08B17/103—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
    • G08B17/107—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 for detecting light-scattering due to smoke
    • 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
EP86309241A 1985-11-29 1986-11-26 Fire detector Expired - Lifetime EP0227320B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB858529435A GB8529435D0 (en) 1985-11-29 1985-11-29 Fire detector
GB8529435 1985-11-29

Publications (3)

Publication Number Publication Date
EP0227320A2 EP0227320A2 (en) 1987-07-01
EP0227320A3 true EP0227320A3 (en) 1988-08-03
EP0227320B1 EP0227320B1 (en) 1995-01-04

Family

ID=10588985

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86309241A Expired - Lifetime EP0227320B1 (en) 1985-11-29 1986-11-26 Fire detector

Country Status (3)

Country Link
EP (1) EP0227320B1 (en)
DE (1) DE3650197T2 (en)
GB (1) GB8529435D0 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9514972D0 (en) * 1995-07-21 1995-09-20 Thorn Security Smoke detector labyrinth
GB2308978B (en) * 1995-09-15 1999-04-28 Norman Rudd A pesticidal device
GB9518913D0 (en) * 1995-09-15 1995-11-15 Rudd Norman A pesticidal device
JPH09270085A (en) * 1996-04-01 1997-10-14 Hamamatsu Photonics Kk Smoke production detector
JP3934423B2 (en) 2002-01-11 2007-06-20 ホーチキ株式会社 Scattered smoke detector
FR2928220B1 (en) * 2008-03-03 2014-08-22 F A R E COMPACT SMOKE DETECTOR
EP3671680A1 (en) * 2018-12-18 2020-06-24 Siemens Schweiz AG Fire or smoke alarm

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4099065A (en) * 1976-10-12 1978-07-04 Chloride, Incorporated Smoke detector with chamber for producing eddy currents
WO1984001650A1 (en) * 1982-10-11 1984-04-26 Cerberus Ag Diffused radiation smoke detector
GB2137338A (en) * 1983-03-31 1984-10-03 Hochiki Co Scattered light type smoke detector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4099065A (en) * 1976-10-12 1978-07-04 Chloride, Incorporated Smoke detector with chamber for producing eddy currents
WO1984001650A1 (en) * 1982-10-11 1984-04-26 Cerberus Ag Diffused radiation smoke detector
GB2137338A (en) * 1983-03-31 1984-10-03 Hochiki Co Scattered light type smoke detector

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
FIRST INTERNATIONAL CONFERENCE ON OPTICAL FIBRE SENSORS, 26th-28th April 1983, pages 62-66, London, GB; H. GUTTINGER et al.: "Fiber-optic sensors and technology in security systems" *

Also Published As

Publication number Publication date
EP0227320B1 (en) 1995-01-04
DE3650197T2 (en) 1995-05-11
GB8529435D0 (en) 1986-01-08
DE3650197D1 (en) 1995-02-16
EP0227320A2 (en) 1987-07-01

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