JPH0319030Y2 - - Google Patents

Info

Publication number
JPH0319030Y2
JPH0319030Y2 JP1988160921U JP16092188U JPH0319030Y2 JP H0319030 Y2 JPH0319030 Y2 JP H0319030Y2 JP 1988160921 U JP1988160921 U JP 1988160921U JP 16092188 U JP16092188 U JP 16092188U JP H0319030 Y2 JPH0319030 Y2 JP H0319030Y2
Authority
JP
Japan
Prior art keywords
smoke
fire
detection
quotient
sensor element
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
JP1988160921U
Other languages
English (en)
Japanese (ja)
Other versions
JPH026392U (en]
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 filed Critical
Publication of JPH026392U publication Critical patent/JPH026392U/ja
Application granted granted Critical
Publication of JPH0319030Y2 publication Critical patent/JPH0319030Y2/ja
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
    • 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
    • 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

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Fire Alarms (AREA)
  • Alarm Systems (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
JP1988160921U 1980-05-09 1988-12-13 Expired JPH0319030Y2 (en])

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH364080 1980-05-09

Publications (2)

Publication Number Publication Date
JPH026392U JPH026392U (en]) 1990-01-17
JPH0319030Y2 true JPH0319030Y2 (en]) 1991-04-22

Family

ID=4260328

Family Applications (2)

Application Number Title Priority Date Filing Date
JP6842781A Pending JPS576988A (en) 1980-05-09 1981-05-08 Fire detecting method and fire alarm device
JP1988160921U Expired JPH0319030Y2 (en]) 1980-05-09 1988-12-13

Family Applications Before (1)

Application Number Title Priority Date Filing Date
JP6842781A Pending JPS576988A (en) 1980-05-09 1981-05-08 Fire detecting method and fire alarm device

Country Status (3)

Country Link
US (1) US4405919A (en])
EP (1) EP0039761A3 (en])
JP (2) JPS576988A (en])

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2142757B (en) * 1983-05-21 1986-11-26 Graviner Ltd Improvements in and relating to fire and explosion detection and suppression
JPS6020299A (ja) * 1983-07-15 1985-02-01 ホーチキ株式会社 火災感知装置
JPS6024695A (ja) * 1983-07-20 1985-02-07 ホーチキ株式会社 火災感知装置
JPS61150096A (ja) * 1984-12-25 1986-07-08 ニツタン株式会社 火災警報装置
US4625199A (en) * 1985-01-14 1986-11-25 American District Telegraph Company Combination intrusion detector system having correlated ultrasonic and microwave detection sub-systems
JPS6222198A (ja) * 1985-07-22 1987-01-30 ニツタン株式会社 複合型検出器
US4660024A (en) * 1985-12-16 1987-04-21 Detection Systems Inc. Dual technology intruder detection system
US4667106A (en) * 1985-12-23 1987-05-19 Factory Mutual Research Corporation Fire identification and discrimination method and apparatus
JPH071519B2 (ja) * 1986-03-25 1995-01-11 松下電工株式会社 火災判定方法
JPH071518B2 (ja) * 1986-03-25 1995-01-11 松下電工株式会社 火災判定方法
US5015384A (en) * 1988-05-25 1991-05-14 Burke Dennis A Anaerobic digestion process
DE4028188A1 (de) * 1990-09-05 1992-03-12 Esser Sicherheitstechnik Brandmelder mit einem streulicht- und einem ionisationssystem
US5310485A (en) * 1992-09-30 1994-05-10 Darling-Delaware Company, Inc. Process for dissolved gas flotation in anaerobic wastewater treatment
GB2274333B (en) * 1993-01-07 1996-12-11 Hochiki Co Smoke detecting apparatus capable of detecting both smoke and fine particles
US5596314A (en) * 1994-08-01 1997-01-21 Quantum Group, Inc. Enclosure for a gas detector system
US6195011B1 (en) 1996-07-02 2001-02-27 Simplex Time Recorder Company Early fire detection using temperature and smoke sensing
EP0818765A1 (en) * 1996-07-10 1998-01-14 Pittway Corporation Multiple sensor detector and method of locally determining a potential alarm condition
US6426703B1 (en) 1997-08-07 2002-07-30 Brk Brands, Inc. Carbon monoxide and smoke detection apparatus
US6362743B1 (en) * 1999-09-09 2002-03-26 Ranco Incorporated Of Delaware Smoke alarm with dual sensing technologies and dual power sources
US6876305B2 (en) * 1999-12-08 2005-04-05 Gentex Corporation Compact particle sensor
US6897774B2 (en) * 2003-05-07 2005-05-24 Edwards Systems Technology, Inc. Ambient condition detector with multipe sensors and single control unit
US9251683B2 (en) 2011-09-16 2016-02-02 Honeywell International Inc. Flame detector using a light guide for optical sensing
US10600301B2 (en) * 2017-05-31 2020-03-24 Vistatech Labs Inc. Smoke device and smoke detection circuit

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4514511Y1 (en]) * 1967-11-01 1970-06-18
US3717862A (en) * 1969-10-16 1973-02-20 Nittan Co Ltd Fire detecting system and testing means therefor
DE2108707A1 (de) * 1971-02-24 1972-09-07 Portscht R Rauchdetektor nach dem Streulichtprinzip bei zwei Wellenlängen
CH547532A (de) * 1972-07-17 1974-03-29 Cerberus Ag Ionisationsfeuermelder.
CH546989A (de) * 1972-12-06 1974-03-15 Cerberus Ag Verfahren und vorrichtung zur brandmeldung.
JPS526199B2 (en]) * 1973-04-27 1977-02-19
CH579309A5 (en]) * 1973-11-09 1976-08-31 Nohmi Bosai Kogyo Co Ltd
CH572252A5 (en]) * 1973-11-09 1976-01-30 Nohmi Bosai Kogyo Co Ltd
CH583946A5 (en]) * 1973-11-09 1977-01-14 Nohmi Bosai Kogyo Co Ltd
CH571259A5 (en) * 1974-10-25 1975-12-31 Nohmi Bosai Kogyo Co Ltd Light dispersion smoke detector - employs light-emitting diode, photodetector and electrodes for ionising detection chamber
CH580310A5 (en) * 1974-11-11 1976-09-30 Nohmi Bosai Kogyo Co Ltd Smoke detector circuit using light source - has associated photoelectric element together with ionisation chamber electrodes
JPS5229288A (en) * 1975-08-30 1977-03-04 Matsushita Electric Works Ltd Smoke detector
JPS5331360A (en) * 1976-09-06 1978-03-24 Kubota Ltd Apparatus for extracting mud
JPS586996B2 (ja) * 1977-02-15 1983-02-07 国際技術開発株式会社 炎感知方式
US4225860A (en) * 1979-01-15 1980-09-30 Pittway Corporation Sensitivity controlled dual input fire detector
CH641584A5 (de) * 1979-02-26 1984-02-29 Cerberus Ag Brandmelder.
US4316184A (en) * 1979-07-27 1982-02-16 Pittway Corporation Combination combustion-products detector
GB2067749B (en) * 1980-01-17 1984-12-12 Graviner Ltd Fire and explosion detection

Also Published As

Publication number Publication date
US4405919A (en) 1983-09-20
JPH026392U (en]) 1990-01-17
EP0039761A2 (de) 1981-11-18
EP0039761A3 (de) 1981-11-25
JPS576988A (en) 1982-01-13

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