DE3580817D1 - PHOTOELECTRIC SMOKE DETECTOR. - Google Patents

PHOTOELECTRIC SMOKE DETECTOR.

Info

Publication number
DE3580817D1
DE3580817D1 DE8585110642T DE3580817T DE3580817D1 DE 3580817 D1 DE3580817 D1 DE 3580817D1 DE 8585110642 T DE8585110642 T DE 8585110642T DE 3580817 T DE3580817 T DE 3580817T DE 3580817 D1 DE3580817 D1 DE 3580817D1
Authority
DE
Germany
Prior art keywords
smoke detector
photoelectric smoke
photoelectric
detector
smoke
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 - Fee Related
Application number
DE8585110642T
Other languages
German (de)
Inventor
Ltd Orioka
Ltd Mochizuki
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.)
Nohmi Bosai Ltd
Original Assignee
Nohmi Bosai Kogyo Co 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
Priority claimed from JP59174043A external-priority patent/JPS6153550A/en
Priority claimed from JP17940084A external-priority patent/JPS6157835A/en
Priority claimed from JP13058784U external-priority patent/JPS6146454U/en
Application filed by Nohmi Bosai Kogyo Co Ltd filed Critical Nohmi Bosai Kogyo Co Ltd
Application granted granted Critical
Publication of DE3580817D1 publication Critical patent/DE3580817D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
DE8585110642T 1984-08-23 1985-08-23 PHOTOELECTRIC SMOKE DETECTOR. Expired - Fee Related DE3580817D1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP59174043A JPS6153550A (en) 1984-08-23 1984-08-23 Photoelectric smoke sensor
JP17940084A JPS6157835A (en) 1984-08-30 1984-08-30 Photoelectric smoke detector
JP13058784U JPS6146454U (en) 1984-08-30 1984-08-30 photoelectric smoke detector

Publications (1)

Publication Number Publication Date
DE3580817D1 true DE3580817D1 (en) 1991-01-17

Family

ID=27316147

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585110642T Expired - Fee Related DE3580817D1 (en) 1984-08-23 1985-08-23 PHOTOELECTRIC SMOKE DETECTOR.

Country Status (2)

Country Link
EP (1) EP0175940B1 (en)
DE (1) DE3580817D1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19741853A1 (en) * 1997-09-23 1999-03-25 Bosch Gmbh Robert Hollow ellipse smoke alarm
GB2342987B (en) * 1998-10-20 2003-03-19 David Appleby Improved smoke sensor with a fault monitoring capability
US6876305B2 (en) 1999-12-08 2005-04-05 Gentex Corporation Compact particle sensor
DE102015004458B4 (en) 2014-06-26 2016-05-12 Elmos Semiconductor Aktiengesellschaft Apparatus and method for a classifying, smokeless air condition sensor for predicting a following operating condition
DE102014019773B4 (en) 2014-12-17 2023-12-07 Elmos Semiconductor Se Device and method for distinguishing between solid objects, cooking fumes and smoke using the display of a mobile telephone
DE102014019172B4 (en) 2014-12-17 2023-12-07 Elmos Semiconductor Se Device and method for distinguishing between solid objects, cooking fumes and smoke using a compensating optical measuring system
CN113470290B (en) * 2021-07-01 2022-03-25 尼特智能科技股份有限公司 Rapid generation system and method for shortest escape route in public place

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1798135U (en) * 1957-07-27 1959-10-15 Walther & Cie Ag SMOKE ALARM, IN PARTICULAR FIRE ALARM.
GB1129402A (en) * 1966-02-24 1968-10-02 Kidde Walter Co Ltd Improvements in or relating to detectors for smoke and like particles
US3708675A (en) * 1969-09-19 1973-01-02 Furukawa Electric Co Ltd Smoke detector in which air entrance and egress are located in oppositely disposed surfaces which are shaped to cause an air velocity differential
AU3100277A (en) * 1977-01-07 1979-06-07 Gen Electric Optical smoke detector
US4216377A (en) * 1977-06-27 1980-08-05 Nittan Company, Limited Light scattering smoke detector
SE428972B (en) * 1979-03-07 1983-08-01 Svenska Utvecklings Ab DEVICE FOR DETECTING THE EVENT OF FLUATING, SOLID OR LIQUID PARTICLES IN A GAS

Also Published As

Publication number Publication date
EP0175940B1 (en) 1990-12-05
EP0175940A1 (en) 1986-04-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee