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ZA975812B - Smoke detector. - Google Patents

Smoke detector.

Info

Publication number
ZA975812B
ZA975812B ZA9705812A ZA975812A ZA975812B ZA 975812 B ZA975812 B ZA 975812B ZA 9705812 A ZA9705812 A ZA 9705812A ZA 975812 A ZA975812 A ZA 975812A ZA 975812 B ZA975812 B ZA 975812B
Authority
ZA
South Africa
Prior art keywords
optical module
smoke detector
measuring chamber
components
detector
Prior art date
Application number
ZA9705812A
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
Application filed by Cerberus Ag filed Critical Cerberus Ag
Publication of ZA975812B publication Critical patent/ZA975812B/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) which project inwards from the periphery of the measuring chamber. All the critical components of the optical module have smooth surfaces, so that the non-absorbed light is reflected in a defined direction. The optical module components may be provided by plastics injection moulding.
ZA9705812A 1996-07-22 1997-06-03 Smoke detector. ZA975812B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96111752A EP0821331B1 (en) 1996-07-22 1996-07-22 Smoke detector

Publications (1)

Publication Number Publication Date
ZA975812B true ZA975812B (en) 1998-01-30

Family

ID=8223020

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA9705812A ZA975812B (en) 1996-07-22 1997-06-03 Smoke detector.

Country Status (12)

Country Link
EP (1) EP0821331B1 (en)
KR (1) KR100467129B1 (en)
CN (1) CN1198238A (en)
AT (1) ATE227041T1 (en)
AU (1) AU725326B2 (en)
DE (1) DE59609838D1 (en)
ES (1) ES2185728T3 (en)
PL (1) PL184227B1 (en)
RU (1) RU2189639C2 (en)
UA (1) UA52618C2 (en)
WO (1) WO1998003947A1 (en)
ZA (1) ZA975812B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103068182B (en) 2006-08-29 2015-10-28 日立化成株式会社 Conductive adhesive film and solar module
EP2801959A1 (en) * 2009-10-05 2014-11-12 Cavius APS Smoke alarm
DE202010006632U1 (en) 2010-05-10 2010-08-05 Osram Gesellschaft mit beschränkter Haftung Smoke detector and unit and such a smoke detector
RU2510532C1 (en) * 2012-07-27 2014-03-27 Закрытое Акционерное Общество "Кб "Света-Лед" Smoke detector
CN111199628A (en) 2018-11-20 2020-05-26 海湾安全技术有限公司 Smoke detector

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3345688C2 (en) * 1983-12-16 1986-06-19 Hartwig Dipl.-Ing. 2409 Scharbeutz Beyersdorf Scattered light - smoke alarm
JP2648560B2 (en) * 1993-04-09 1997-09-03 ホーチキ株式会社 Scattered light smoke detector
US5400014A (en) * 1993-07-12 1995-03-21 Detection Systems, Inc. Smoke detector with dark chamber

Also Published As

Publication number Publication date
PL184227B1 (en) 2002-09-30
CN1198238A (en) 1998-11-04
KR100467129B1 (en) 2005-05-03
EP0821331B1 (en) 2002-10-30
ATE227041T1 (en) 2002-11-15
AU725326B2 (en) 2000-10-12
EP0821331A1 (en) 1998-01-28
DE59609838D1 (en) 2002-12-05
KR20000064239A (en) 2000-11-06
PL325922A1 (en) 1998-08-17
ES2185728T3 (en) 2003-05-01
RU2189639C2 (en) 2002-09-20
UA52618C2 (en) 2003-01-15
WO1998003947A1 (en) 1998-01-29
AU3332897A (en) 1998-02-10

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