GB2309079B - Light scattering type smoke sensor - Google Patents
Light scattering type smoke sensorInfo
- Publication number
- GB2309079B GB2309079B GB9707433A GB9707433A GB2309079B GB 2309079 B GB2309079 B GB 2309079B GB 9707433 A GB9707433 A GB 9707433A GB 9707433 A GB9707433 A GB 9707433A GB 2309079 B GB2309079 B GB 2309079B
- Authority
- GB
- United Kingdom
- Prior art keywords
- light scattering
- smoke sensor
- scattering type
- type smoke
- sensor
- 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 - Lifetime
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)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5221548A JP3015633B2 (en) | 1993-09-07 | 1993-09-07 | Scattered light smoke detector |
JP5221551A JP2721788B2 (en) | 1993-09-07 | 1993-09-07 | Scattered light smoke detector |
JP5221549A JP3015634B2 (en) | 1993-09-07 | 1993-09-07 | Scattered light smoke detector |
JP5221550A JP3015635B2 (en) | 1993-09-07 | 1993-09-07 | Scattered light smoke detector |
GB9417669A GB2281619B (en) | 1993-09-07 | 1994-09-02 | Light scattering type smoke sensor |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9707433D0 GB9707433D0 (en) | 1997-05-28 |
GB2309079A GB2309079A (en) | 1997-07-16 |
GB2309079B true GB2309079B (en) | 1997-10-22 |
Family
ID=27517259
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9707433A Expired - Lifetime GB2309079B (en) | 1993-09-07 | 1994-09-02 | Light scattering type smoke sensor |
GB9707434A Expired - Lifetime GB2309080B (en) | 1993-09-07 | 1994-09-02 | Light scattering type smoke sensor |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9707434A Expired - Lifetime GB2309080B (en) | 1993-09-07 | 1994-09-02 | Light scattering type smoke sensor |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB2309079B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110930631A (en) * | 2019-11-26 | 2020-03-27 | 福建好神奇电子科技有限公司 | Photoelectric fire smoke alarm and smoke detection deviation compensation method thereof |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3370032B2 (en) * | 1999-11-01 | 2003-01-27 | ホーチキ株式会社 | Photoelectric smoke detector and smoke detector assembly |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2277376A (en) * | 1993-04-09 | 1994-10-26 | Hochiki Co | Light scattering type smoke detector |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4539556A (en) * | 1983-04-15 | 1985-09-03 | Pittway Corporation | Combustion products detector with accelerated test |
-
1994
- 1994-09-02 GB GB9707433A patent/GB2309079B/en not_active Expired - Lifetime
- 1994-09-02 GB GB9707434A patent/GB2309080B/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2277376A (en) * | 1993-04-09 | 1994-10-26 | Hochiki Co | Light scattering type smoke detector |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110930631A (en) * | 2019-11-26 | 2020-03-27 | 福建好神奇电子科技有限公司 | Photoelectric fire smoke alarm and smoke detection deviation compensation method thereof |
Also Published As
Publication number | Publication date |
---|---|
GB2309080A (en) | 1997-07-16 |
GB2309079A (en) | 1997-07-16 |
GB9707434D0 (en) | 1997-05-28 |
GB9707433D0 (en) | 1997-05-28 |
GB2309080B (en) | 1997-10-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PE20 | Patent expired after termination of 20 years |
Expiry date: 20140901 |