GB2306218B - Combined detector & sounder device for fire alarm system - Google Patents
Combined detector & sounder device for fire alarm systemInfo
- Publication number
- GB2306218B GB2306218B GB9520749A GB9520749A GB2306218B GB 2306218 B GB2306218 B GB 2306218B GB 9520749 A GB9520749 A GB 9520749A GB 9520749 A GB9520749 A GB 9520749A GB 2306218 B GB2306218 B GB 2306218B
- Authority
- GB
- United Kingdom
- Prior art keywords
- alarm system
- fire alarm
- combined detector
- sounder device
- sounder
- 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
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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9520749A GB2306218B (en) | 1995-10-11 | 1995-10-11 | Combined detector & sounder device for fire alarm system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9520749A GB2306218B (en) | 1995-10-11 | 1995-10-11 | Combined detector & sounder device for fire alarm system |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9520749D0 GB9520749D0 (en) | 1995-12-13 |
GB2306218A GB2306218A (en) | 1997-04-30 |
GB2306218B true GB2306218B (en) | 1999-06-23 |
Family
ID=10782101
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9520749A Expired - Fee Related GB2306218B (en) | 1995-10-11 | 1995-10-11 | Combined detector & sounder device for fire alarm system |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2306218B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113168753A (en) * | 2018-12-18 | 2021-07-23 | 西门子瑞士有限公司 | Fire or smoke alarm |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2322727A (en) | 1997-02-27 | 1998-09-02 | Fulleon Ltd | Sounder device |
GB2335976A (en) * | 1998-04-02 | 1999-10-06 | Alasdair James Williamson | Replaceable optical cell for scattered light smoke detection apparatus |
JP3902377B2 (en) * | 2000-03-17 | 2007-04-04 | ニッタン株式会社 | Combined thermal smoke sensor |
IT1315417B1 (en) * | 2000-04-11 | 2003-02-10 | Pittway Tecnologica Spa | FIRE DETECTOR STRUCTURE |
GB2397122B (en) * | 2003-01-03 | 2006-02-08 | David Appleby | Fire detector with low false alarm rate |
DE102008053909A1 (en) | 2008-10-30 | 2010-05-27 | Novar Gmbh | gas detector |
JP2011008444A (en) * | 2009-06-24 | 2011-01-13 | Panasonic Electric Works Co Ltd | Fire alarm |
JP5921198B2 (en) * | 2010-01-21 | 2016-05-24 | ホーチキ株式会社 | sensor |
GB201006682D0 (en) | 2010-04-21 | 2010-06-09 | Fireangel Ltd | Co-9x optical alarm |
WO2019234376A1 (en) * | 2018-06-05 | 2019-12-12 | Electronic Modular Services Ltd. | Smoke chamber as audio chamber in audible alarm devices |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0569712A1 (en) * | 1992-04-25 | 1993-11-18 | Nohmi Bosai Ltd. | Fire detector |
GB2296763A (en) * | 1995-01-04 | 1996-07-10 | Caradon Gent Limited | Improvements in and relating to smoke detectors |
-
1995
- 1995-10-11 GB GB9520749A patent/GB2306218B/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0569712A1 (en) * | 1992-04-25 | 1993-11-18 | Nohmi Bosai Ltd. | Fire detector |
GB2296763A (en) * | 1995-01-04 | 1996-07-10 | Caradon Gent Limited | Improvements in and relating to smoke detectors |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113168753A (en) * | 2018-12-18 | 2021-07-23 | 西门子瑞士有限公司 | Fire or smoke alarm |
Also Published As
Publication number | Publication date |
---|---|
GB9520749D0 (en) | 1995-12-13 |
GB2306218A (en) | 1997-04-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20141011 |