ZA975811B - Smoke detector. - Google Patents

Smoke detector.

Info

Publication number
ZA975811B
ZA975811B ZA9705811A ZA975811A ZA975811B ZA 975811 B ZA975811 B ZA 975811B ZA 9705811 A ZA9705811 A ZA 9705811A ZA 975811 A ZA975811 A ZA 975811A ZA 975811 B ZA975811 B ZA 975811B
Authority
ZA
South Africa
Prior art keywords
measuring chamber
smoke detector
photodetector
periphery
light source
Prior art date
Application number
ZA9705811A
Inventor
Urs Riedi
Bernhard Durrer
Kurt Hess
Original Assignee
Cerberus Ag
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8223019&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ZA975811(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Cerberus Ag filed Critical Cerberus Ag
Publication of ZA975811B publication Critical patent/ZA975811B/en

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)

Abstract

The smoke detector has a fixing socket in which a detector insert with an optical module is fitted. The optical module has a light source (6) and a photodetector (7) contained within a measuring chamber having a base (11). The module further has a labyrinth system provided by plates (9) projecting inwards from the periphery of the measuring chamber. The base of the measuring chamber has a conical or pyramid shape so that its centre lies at a greater distance from the plane containing the light source and the photodetector than its periphery.
ZA9705811A 1996-07-22 1997-06-30 Smoke detector. ZA975811B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96111751A EP0821330B1 (en) 1996-07-22 1996-07-22 Smoke detector

Publications (1)

Publication Number Publication Date
ZA975811B true ZA975811B (en) 1998-02-04

Family

ID=8223019

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA9705811A ZA975811B (en) 1996-07-22 1997-06-30 Smoke detector.

Country Status (12)

Country Link
EP (1) EP0821330B1 (en)
KR (1) KR100467130B1 (en)
CN (1) CN1135511C (en)
AT (1) ATE223604T1 (en)
AU (1) AU725418B2 (en)
DE (1) DE59609625D1 (en)
ES (1) ES2183899T3 (en)
PL (1) PL184244B1 (en)
RU (1) RU2189080C2 (en)
UA (1) UA42086C2 (en)
WO (1) WO1998003946A1 (en)
ZA (1) ZA975811B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1376504B1 (en) * 2002-06-20 2006-02-22 Siemens Schweiz AG Light scattering smoke detector
ES2260357T3 (en) 2002-06-20 2006-11-01 Siemens Schweiz Ag FIRE DETECTOR.
EP1732049A1 (en) 2005-06-10 2006-12-13 Siemens S.A.S. Fire or smoke detector with high false alarm rejection performance
EP1768074A1 (en) 2005-09-21 2007-03-28 Siemens Schweiz AG Early detection of fires
RU2340947C2 (en) * 2007-06-15 2008-12-10 Валерий Васильевич Овчинников Fire fighting smoke optic-electronic detector
CN101413889B (en) * 2007-10-17 2010-08-11 同方泰德国际科技(北京)有限公司 Correlation type photoelectric smoke sensing detector
US20110170261A1 (en) * 2008-10-01 2011-07-14 Sharp Kabushiki Kaisha Electronic apparatus, illuminating device, display device and television receiver
RU2509369C1 (en) * 2012-07-05 2014-03-10 Закрытое акционерное общество "Инженерно-техническая компания ИРСЭТ-Центр" Optical smoke detector
RU2646195C1 (en) * 2014-07-14 2018-03-01 Фенвал Контролз Оф Джэпэн, Лтд. Photoelectric smoke detector
CN104459817B (en) * 2014-12-16 2017-01-25 公安部沈阳消防研究所 Fire sign detection device and method
EP3699882A1 (en) * 2015-05-15 2020-08-26 Google LLC Smoke detector chamber architecture and related methods
KR101772822B1 (en) * 2016-09-26 2017-08-29 이병권 Photo type detector with Double bulkhead structure
RU187749U1 (en) * 2018-08-31 2019-03-18 Общество с ограниченной ответственностью "Элеста" SMOKE DETECTOR
DE102019110336A1 (en) * 2019-04-18 2020-10-22 Jörg Flemming smoke detector
CN110443972B (en) * 2019-09-12 2024-02-06 深圳市高新投三江电子股份有限公司 Maze background value control method
JP2023102460A (en) * 2022-01-12 2023-07-25 ニデックプレシジョン株式会社 Shutter mechanism, and inspection device
RU210429U1 (en) * 2022-01-31 2022-04-15 Публичное акционерное общество "Татнефть" имени В.Д. Шашина Optoelectronic smoke sensor for conditions complicated by the presence of suspended particles of cement indoors

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3727056A (en) * 1972-03-03 1973-04-10 Electro Signal Lab Photon couplers with solid state lamps
US4539556A (en) * 1983-04-15 1985-09-03 Pittway Corporation Combustion products detector with accelerated test
DE3334545A1 (en) * 1983-09-23 1985-04-04 Siemens AG, 1000 Berlin und 8000 München OPTICAL SMOKE DETECTOR
JP2648560B2 (en) * 1993-04-09 1997-09-03 ホーチキ株式会社 Scattered light smoke detector

Also Published As

Publication number Publication date
ES2183899T3 (en) 2003-04-01
ATE223604T1 (en) 2002-09-15
CN1135511C (en) 2004-01-21
PL184244B1 (en) 2002-09-30
WO1998003946A1 (en) 1998-01-29
PL325921A1 (en) 1998-08-17
CN1198236A (en) 1998-11-04
KR20000064238A (en) 2000-11-06
DE59609625D1 (en) 2002-10-10
AU725418B2 (en) 2000-10-12
AU3332797A (en) 1998-02-10
KR100467130B1 (en) 2005-06-02
EP0821330B1 (en) 2002-09-04
EP0821330A1 (en) 1998-01-28
RU2189080C2 (en) 2002-09-10
UA42086C2 (en) 2001-10-15

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