DE3070136D1 - Smoke detector of the light diffusion type with self-checking - Google Patents
Smoke detector of the light diffusion type with self-checkingInfo
- Publication number
- DE3070136D1 DE3070136D1 DE8080401886T DE3070136T DE3070136D1 DE 3070136 D1 DE3070136 D1 DE 3070136D1 DE 8080401886 T DE8080401886 T DE 8080401886T DE 3070136 T DE3070136 T DE 3070136T DE 3070136 D1 DE3070136 D1 DE 3070136D1
- Authority
- DE
- Germany
- Prior art keywords
- emitter
- receiver
- self
- light
- 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.)
- Expired
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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Fire-Detection Mechanisms (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP80401886A EP0055319B1 (de) | 1980-12-30 | 1980-12-30 | Rauchmelder nach dem Lichtstreuungsprinzip mit Selbstüberwachung |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3070136D1 true DE3070136D1 (en) | 1985-03-21 |
Family
ID=8187415
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8080401886T Expired DE3070136D1 (en) | 1980-12-30 | 1980-12-30 | Smoke detector of the light diffusion type with self-checking |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0055319B1 (de) |
AT (1) | ATE11706T1 (de) |
DE (1) | DE3070136D1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL9001415A (nl) * | 1990-06-21 | 1992-01-16 | Ajax De Boer B V | Optische rook-, aerosol- en stofdetector en brandmeldingsapparaat met optische detector. |
GB9014015D0 (en) * | 1990-06-23 | 1990-08-15 | Dennis Peter N J | Improvements in or relating to smoke detectors |
GB2273769B (en) * | 1992-12-15 | 1996-08-28 | Stephen Henry Ellwood | Proportional light scattering sensor |
FR2736183B1 (fr) * | 1995-06-30 | 1997-10-03 | Automatismes Sicli | Detecteur optique de fumee a diffusion |
GB2342987B (en) * | 1998-10-20 | 2003-03-19 | David Appleby | Improved smoke sensor with a fault monitoring capability |
DE102013002859B4 (de) | 2013-02-20 | 2018-08-23 | Detectomat Gmbh | Vorrichtung zur Detektion von Rauch in einem Raum und Verfahren zum Überprüfen der Funktionsfähigkeit einer derartigen Vorrichtung |
WO2018015418A1 (en) | 2016-07-19 | 2018-01-25 | Autronica Fire & Security As | Smoke detector operational integrity verification system and method |
JP7163227B2 (ja) * | 2019-03-19 | 2022-10-31 | 能美防災株式会社 | 煙感知器 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB341086A (en) * | 1928-10-30 | 1931-01-12 | Kidde & Co Walter | Improvements relating to the detection of foreign matter in fluids |
US3122638A (en) * | 1959-01-22 | 1964-02-25 | Pyrotector Inc | Infrared detector system for flame and particle detection |
US3417392A (en) * | 1965-10-23 | 1968-12-17 | Julian E. Hansen Sr. | Fire detector |
GB1172353A (en) * | 1966-02-16 | 1969-11-26 | Pyrene Co Ltd | Improvements relating to Smoke Detectors |
GB1446646A (en) * | 1973-09-20 | 1976-08-18 | Chubb Fire Security Ltd | Smoke detector |
CH592933A5 (de) * | 1976-04-05 | 1977-11-15 | Cerberus Ag |
-
1980
- 1980-12-30 EP EP80401886A patent/EP0055319B1/de not_active Expired
- 1980-12-30 DE DE8080401886T patent/DE3070136D1/de not_active Expired
- 1980-12-30 AT AT80401886T patent/ATE11706T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATE11706T1 (de) | 1985-02-15 |
EP0055319A1 (de) | 1982-07-07 |
EP0055319B1 (de) | 1985-02-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE7703071L (sv) | Rokdetektor | |
GB1062638A (en) | Improvements in or relating to television receivers | |
SE7703072L (sv) | Rokdetektor | |
DE3070136D1 (en) | Smoke detector of the light diffusion type with self-checking | |
US4488049A (en) | Moving wall test device in optical smoke detectors | |
US3122638A (en) | Infrared detector system for flame and particle detection | |
ES459022A1 (es) | Perfeccionamientos introducidos en un sistema de iluminacionde la trayectoria de aproximacion en el aterrizaje de aero- planos. | |
GB1458546A (en) | Projective-reflecitve optical apparatus | |
JPS5723914A (en) | Recorder | |
NL7607722A (nl) | Astigmatische elektronenlens, kathodestraal- buis met een dergelijke lens en inrichting met een dergelijke kathodestraalbuis. | |
JPS5252664A (en) | Detector for liquid level | |
US3382762A (en) | Smoke detecting device | |
JPS5228335A (en) | Optical unit | |
GB2009399A (en) | Checking a smoke detector | |
AU533692B2 (en) | Automatic brightness control and c.r.t. bias adjustment | |
JPS5683848A (en) | Focusing device | |
JPS5444582A (en) | Smoke detector | |
US3396281A (en) | Reflective photoelectric pickups | |
JPS5722210A (en) | Optical device | |
JPS5227646A (en) | Optical device | |
JPS5280880A (en) | Attenuation type smoke detector | |
GB2111278A (en) | Optical fire detector | |
JPS54141689A (en) | Clouding preventive device of photoelectric detector | |
JPS5210789A (en) | Signal processing circuit of light-scattering type smoke senser | |
JPS5280881A (en) | Attenuation type smoke detector |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8363 | Opposition against the patent | ||
8331 | Complete revocation |