GB2158573A - Scattered-light type smoke detector - Google Patents

Scattered-light type smoke detector Download PDF

Info

Publication number
GB2158573A
GB2158573A GB08506035A GB8506035A GB2158573A GB 2158573 A GB2158573 A GB 2158573A GB 08506035 A GB08506035 A GB 08506035A GB 8506035 A GB8506035 A GB 8506035A GB 2158573 A GB2158573 A GB 2158573A
Authority
GB
United Kingdom
Prior art keywords
light
smoke
scattered
light emitting
smoke 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Withdrawn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
GB08506035A
Other languages
English (en)
Other versions
GB8506035D0 (en
Inventor
Tetsuya Nagashima
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.)
Hochiki Corp
Original Assignee
Hochiki Corp
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 Hochiki Corp filed Critical Hochiki Corp
Publication of GB8506035D0 publication Critical patent/GB8506035D0/en
Publication of GB2158573A publication Critical patent/GB2158573A/en
Withdrawn legal-status Critical Current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

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)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GB08506035A 1984-03-09 1985-03-08 Scattered-light type smoke detector Withdrawn GB2158573A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1984033961U JPS60148688U (ja) 1984-03-09 1984-03-09 散乱光式煙感知器

Publications (2)

Publication Number Publication Date
GB8506035D0 GB8506035D0 (en) 1985-04-11
GB2158573A true GB2158573A (en) 1985-11-13

Family

ID=12401086

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08506035A Withdrawn GB2158573A (en) 1984-03-09 1985-03-08 Scattered-light type smoke detector

Country Status (5)

Country Link
JP (1) JPS60148688U (enrdf_load_stackoverflow)
CH (1) CH662196A5 (enrdf_load_stackoverflow)
DE (1) DE3507996A1 (enrdf_load_stackoverflow)
GB (1) GB2158573A (enrdf_load_stackoverflow)
NO (1) NO850914L (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0475884A1 (de) * 1990-09-05 1992-03-18 ESSER SICHERHEITSTECHNIK GmbH Brandmelder mit einem Streulicht- und einem Ionisationssystem
WO1992019955A1 (en) * 1991-05-01 1992-11-12 Allied-Signal Inc. Smoke detector apparatus
US5231378A (en) * 1990-06-23 1993-07-27 Kidde-Graviner Limited Particle detection which senses scattered light
CN108416777A (zh) * 2018-03-16 2018-08-17 佛山市合能物联软件开发有限公司 车辆尾气黑度值计算方法及系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0820363B2 (ja) * 1985-11-29 1996-03-04 ジエント リミテイド 火災検知器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1501698A (en) * 1974-04-17 1978-02-22 Hochiki Co Photoelectric smoke detectors
GB2137338A (en) * 1983-03-31 1984-10-03 Hochiki Co Scattered light type smoke detector

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5649995U (enrdf_load_stackoverflow) * 1979-09-19 1981-05-02
JPS5653295U (enrdf_load_stackoverflow) * 1979-09-29 1981-05-11
JPS56100342A (en) * 1980-01-14 1981-08-12 Matsushita Electric Works Ltd Photoelectric type smoke sensor
JPS6032186Y2 (ja) * 1981-07-28 1985-09-26 ティー・シー・エム株式会社 ロ−タリ除雪装置における金属異物検知装置
JPS605076Y2 (ja) * 1981-07-29 1985-02-15 勇 沼田 消波装置
JPS5840477U (ja) * 1981-09-14 1983-03-17 株式会社クボタ 歩行型移動農機

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1501698A (en) * 1974-04-17 1978-02-22 Hochiki Co Photoelectric smoke detectors
GB2137338A (en) * 1983-03-31 1984-10-03 Hochiki Co Scattered light type smoke detector

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5231378A (en) * 1990-06-23 1993-07-27 Kidde-Graviner Limited Particle detection which senses scattered light
EP0475884A1 (de) * 1990-09-05 1992-03-18 ESSER SICHERHEITSTECHNIK GmbH Brandmelder mit einem Streulicht- und einem Ionisationssystem
WO1992019955A1 (en) * 1991-05-01 1992-11-12 Allied-Signal Inc. Smoke detector apparatus
CN108416777A (zh) * 2018-03-16 2018-08-17 佛山市合能物联软件开发有限公司 车辆尾气黑度值计算方法及系统

Also Published As

Publication number Publication date
NO850914L (no) 1985-09-10
JPS60148688U (ja) 1985-10-02
JPH0435990Y2 (enrdf_load_stackoverflow) 1992-08-25
GB8506035D0 (en) 1985-04-11
DE3507996A1 (de) 1985-10-10
CH662196A5 (fr) 1987-09-15

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)