GB2172701B - Light-transmission type smoke detector - Google Patents
Light-transmission type smoke detectorInfo
- Publication number
- GB2172701B GB2172701B GB08606819A GB8606819A GB2172701B GB 2172701 B GB2172701 B GB 2172701B GB 08606819 A GB08606819 A GB 08606819A GB 8606819 A GB8606819 A GB 8606819A GB 2172701 B GB2172701 B GB 2172701B
- Authority
- GB
- United Kingdom
- Prior art keywords
- light
- transmission type
- smoke detector
- type 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
-
- 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)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fire-Detection Mechanisms (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1985039020U JPS61155757U (US20100223739A1-20100909-C00025.png) | 1985-03-20 | 1985-03-20 |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8606819D0 GB8606819D0 (en) | 1986-04-23 |
GB2172701A GB2172701A (en) | 1986-09-24 |
GB2172701B true GB2172701B (en) | 1988-09-07 |
Family
ID=12541422
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08606819A Expired GB2172701B (en) | 1985-03-20 | 1986-03-19 | Light-transmission type smoke detector |
Country Status (3)
Country | Link |
---|---|
US (1) | US4700079A (US20100223739A1-20100909-C00025.png) |
JP (1) | JPS61155757U (US20100223739A1-20100909-C00025.png) |
GB (1) | GB2172701B (US20100223739A1-20100909-C00025.png) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63163698A (ja) * | 1986-12-26 | 1988-07-07 | ホーチキ株式会社 | 散乱光式煙感知器 |
US5060508A (en) * | 1990-04-02 | 1991-10-29 | Gaztech Corporation | Gas sample chamber |
US5568130A (en) * | 1994-09-30 | 1996-10-22 | Dahl; Ernest A. | Fire detector |
DE19512126C1 (de) * | 1995-04-04 | 1996-09-05 | Hekatron Gmbh | Vorrichtung zum Detektieren eines Gases oder Aerosols |
JPH09270085A (ja) * | 1996-04-01 | 1997-10-14 | Hamamatsu Photonics Kk | 発煙検知装置 |
US6876305B2 (en) * | 1999-12-08 | 2005-04-05 | Gentex Corporation | Compact particle sensor |
US6778091B2 (en) | 2001-01-09 | 2004-08-17 | Qualey, Iii James R. | Smoke chamber |
GB2372099B (en) * | 2001-02-08 | 2003-11-05 | Status Scient Controls Ltd | Gas sensor |
AU762183B2 (en) * | 2001-04-24 | 2003-06-19 | Matsushita Electric Works Ltd. | Fire detector unit |
GB2396405B (en) * | 2002-12-05 | 2006-03-08 | E2V Tech Uk Ltd | Gas sensors |
GB2401432B (en) * | 2003-12-09 | 2005-05-04 | Dynament Ltd | Gas sensor |
US7244939B2 (en) * | 2003-12-09 | 2007-07-17 | Dynament Limited | Gas sensor |
RU2340947C2 (ru) * | 2007-06-15 | 2008-12-10 | Валерий Васильевич Овчинников | Пожарный дымовой оптико-электронный извещатель |
GB201000756D0 (en) * | 2010-01-18 | 2010-03-03 | Gas Sensing Solutions Ltd | Gas sensor with radiation guide |
JP6347051B2 (ja) | 2013-03-04 | 2018-06-27 | パナソニックIpマネジメント株式会社 | デバイス |
ITMI20130478A1 (it) * | 2013-03-29 | 2014-09-30 | N E T Srl | Rilevatore ottico di gas a geometria variabile |
US9804084B2 (en) * | 2013-11-11 | 2017-10-31 | Amphenol Thermometrics, Inc. | Optical gas sensor |
KR102267044B1 (ko) * | 2019-12-11 | 2021-06-18 | 주식회사 태성환경연구소 | 비분산적외선 방식의 이산화탄소 가스센서 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH578176A5 (en) * | 1975-05-06 | 1976-07-30 | Cerberus Ag | Radiation extinction measuring instrument - has radiation source and radiation receiver using tube for medium to be tested |
JPS5338003A (en) * | 1976-09-17 | 1978-04-07 | Daiei Kogyo Co Ltd | Method of producing light metal alloy spokes |
JPS53144387A (en) * | 1977-05-23 | 1978-12-15 | Hochiki Co | Depreciation type detector |
US4383253A (en) * | 1979-01-29 | 1983-05-10 | International Quartz Ltd. | Ionization smoke detector |
US4386388A (en) * | 1981-09-04 | 1983-05-31 | Northern Telecom Limited | Printed circuit board assembly |
US4547673A (en) * | 1983-01-10 | 1985-10-15 | Detector Electronics Corporation | Smoke and flame detector |
US4626695A (en) * | 1984-07-16 | 1986-12-02 | Pittway Corporation | Photoelectric combustion products detector with low power consumption and improved noise immunity |
-
1985
- 1985-03-20 JP JP1985039020U patent/JPS61155757U/ja active Pending
-
1986
- 1986-03-05 US US06/836,324 patent/US4700079A/en not_active Expired - Lifetime
- 1986-03-19 GB GB08606819A patent/GB2172701B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB8606819D0 (en) | 1986-04-23 |
JPS61155757U (US20100223739A1-20100909-C00025.png) | 1986-09-27 |
US4700079A (en) | 1987-10-13 |
GB2172701A (en) | 1986-09-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20040319 |