JPS5757759B2 - - Google Patents
Info
- Publication number
- JPS5757759B2 JPS5757759B2 JP52129456A JP12945677A JPS5757759B2 JP S5757759 B2 JPS5757759 B2 JP S5757759B2 JP 52129456 A JP52129456 A JP 52129456A JP 12945677 A JP12945677 A JP 12945677A JP S5757759 B2 JPS5757759 B2 JP S5757759B2
- Authority
- JP
- Japan
- 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
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/02—Monitoring continuously signalling or alarm systems
- G08B29/04—Monitoring of the detection circuits
- G08B29/043—Monitoring of the detection circuits of fire detection circuits
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Detection Mechanisms (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12945677A JPS5462800A (en) | 1977-10-28 | 1977-10-28 | Light type smoke sensor having trouble detecting function |
| US05/935,365 US4199755A (en) | 1977-10-28 | 1978-08-21 | Optical smoke detector |
| GB7840543A GB2006955B (en) | 1977-10-28 | 1978-10-13 | Optical smoce detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12945677A JPS5462800A (en) | 1977-10-28 | 1977-10-28 | Light type smoke sensor having trouble detecting function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5462800A JPS5462800A (en) | 1979-05-21 |
| JPS5757759B2 true JPS5757759B2 (US08124630-20120228-C00102.png) | 1982-12-06 |
Family
ID=15009925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12945677A Granted JPS5462800A (en) | 1977-10-28 | 1977-10-28 | Light type smoke sensor having trouble detecting function |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4199755A (US08124630-20120228-C00102.png) |
| JP (1) | JPS5462800A (US08124630-20120228-C00102.png) |
| GB (1) | GB2006955B (US08124630-20120228-C00102.png) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6020898U (ja) * | 1983-07-21 | 1985-02-13 | 東京シ−ト株式会社 | シ−ト表皮の端末止着構造 |
| JPS63152449U (US08124630-20120228-C00102.png) * | 1987-03-26 | 1988-10-06 | ||
| JPH0378449U (US08124630-20120228-C00102.png) * | 1989-11-30 | 1991-08-08 |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH656473A5 (en) * | 1981-11-11 | 1986-06-30 | Cerberus Ag | Smoke detector |
| US4595914A (en) * | 1983-04-11 | 1986-06-17 | Pittway Corporation | Self-testing combustion products detector |
| US4642615A (en) * | 1984-07-31 | 1987-02-10 | Nittan Company, Limited | Light-scattering type smoke detector |
| FR2601483B1 (fr) * | 1986-07-11 | 1988-09-16 | Ferco Int Usine Ferrures | Installation de surveillance comportant des detecteurs alimentes par une boucle |
| US4762992A (en) * | 1987-06-10 | 1988-08-09 | Kollmorgen Corporation | Error detection system for two-state fiber optic sensors |
| GB9014015D0 (en) * | 1990-06-23 | 1990-08-15 | Dennis Peter N J | Improvements in or relating to smoke detectors |
| US5546074A (en) * | 1993-08-19 | 1996-08-13 | Sentrol, Inc. | Smoke detector system with self-diagnostic capabilities and replaceable smoke intake canopy |
| US6501810B1 (en) | 1998-10-13 | 2002-12-31 | Agere Systems Inc. | Fast frame synchronization |
| FR2754347B1 (fr) * | 1996-10-09 | 1998-11-27 | Seb Sa | Dispositif de detection de fumee pour appareil de cuisson |
| GB2423357A (en) * | 2005-02-22 | 2006-08-23 | Thorn Security | A self-monitoring smoke detector |
| EP2093732A1 (de) * | 2008-02-19 | 2009-08-26 | Siemens Aktiengesellschaft | Vorrichtung und Verfahren zum Detektieren von Rauch durch gemeinsame Auswertung zweier optischer Rückstreusignale |
| CN106023512A (zh) * | 2016-07-27 | 2016-10-12 | 中国人民解放军93325部队 | 智能防火报警系统 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2877453A (en) * | 1956-01-17 | 1959-03-10 | Jr Alfred L Mendenhall | Smoke detecting device |
| CH417405A (de) * | 1964-07-14 | 1966-07-15 | Cerberus Ag Werk Fuer Elektron | Vorrichtung zur Feststellung von Aerosolen in Luft |
| US3474435A (en) * | 1966-10-11 | 1969-10-21 | Vericon Inc | Vapor or particle detection devices |
| US3534351A (en) * | 1967-04-07 | 1970-10-13 | Gen Electric | Light coupled battery powered remote control apparatus |
| US3510666A (en) * | 1967-05-05 | 1970-05-05 | Bowser Inc | Turbidity meter having calibrating light source |
| US3543260A (en) * | 1968-07-24 | 1970-11-24 | Honeywell Inc | Self checking interuder and fire detector units and system |
| US3710365A (en) * | 1971-04-21 | 1973-01-09 | F Barnes | Electronic smoke detector |
| CH566059A5 (US08124630-20120228-C00102.png) * | 1972-03-07 | 1975-08-29 | Protecbat La Detection Electro | |
| US4149162A (en) * | 1977-06-20 | 1979-04-10 | American District Telegraph Company | Battery discriminator circuit for smoke detectors |
-
1977
- 1977-10-28 JP JP12945677A patent/JPS5462800A/ja active Granted
-
1978
- 1978-08-21 US US05/935,365 patent/US4199755A/en not_active Expired - Lifetime
- 1978-10-13 GB GB7840543A patent/GB2006955B/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6020898U (ja) * | 1983-07-21 | 1985-02-13 | 東京シ−ト株式会社 | シ−ト表皮の端末止着構造 |
| JPS63152449U (US08124630-20120228-C00102.png) * | 1987-03-26 | 1988-10-06 | ||
| JPH0378449U (US08124630-20120228-C00102.png) * | 1989-11-30 | 1991-08-08 |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2006955B (en) | 1982-03-17 |
| US4199755A (en) | 1980-04-22 |
| JPS5462800A (en) | 1979-05-21 |
| GB2006955A (en) | 1979-05-10 |
