FR1519746A - Smoke detection device - Google Patents
Smoke detection deviceInfo
- Publication number
- FR1519746A FR1519746A FR95706A FR95706A FR1519746A FR 1519746 A FR1519746 A FR 1519746A FR 95706 A FR95706 A FR 95706A FR 95706 A FR95706 A FR 95706A FR 1519746 A FR1519746 A FR 1519746A
- Authority
- FR
- France
- Prior art keywords
- detection device
- smoke detection
- smoke
- detection
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR95706A FR1519746A (en) | 1967-02-21 | 1967-02-21 | Smoke detection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR95706A FR1519746A (en) | 1967-02-21 | 1967-02-21 | Smoke detection device |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1519746A true FR1519746A (en) | 1968-04-05 |
Family
ID=8625604
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR95706A Expired FR1519746A (en) | 1967-02-21 | 1967-02-21 | Smoke detection device |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1519746A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2846310A1 (en) * | 1978-10-24 | 1980-04-30 | Preussag Ag Feuerschutz | Fire alarm system for factory or warehouse - has each detector incorporated in air duct with air intakes at half of ceiling height |
WO1988005517A1 (en) * | 1987-01-27 | 1988-07-28 | Halton Oy | Ventilation control procedure and ventilation control means |
-
1967
- 1967-02-21 FR FR95706A patent/FR1519746A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2846310A1 (en) * | 1978-10-24 | 1980-04-30 | Preussag Ag Feuerschutz | Fire alarm system for factory or warehouse - has each detector incorporated in air duct with air intakes at half of ceiling height |
WO1988005517A1 (en) * | 1987-01-27 | 1988-07-28 | Halton Oy | Ventilation control procedure and ventilation control means |
US4903894A (en) * | 1987-01-27 | 1990-02-27 | Halton Oy | Ventilation control procedure and ventilation control means |
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