FR2223766A1 - - Google Patents
Info
- Publication number
- FR2223766A1 FR2223766A1 FR7408640A FR7408640A FR2223766A1 FR 2223766 A1 FR2223766 A1 FR 2223766A1 FR 7408640 A FR7408640 A FR 7408640A FR 7408640 A FR7408640 A FR 7408640A FR 2223766 A1 FR2223766 A1 FR 2223766A1
- Authority
- FR
- France
- 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.)
- Granted
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
- G08B17/11—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
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)
- Fire Alarms (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Alarm Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH462173A CH570016A5 (fi) | 1973-03-30 | 1973-03-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2223766A1 true FR2223766A1 (fi) | 1974-10-25 |
| FR2223766B1 FR2223766B1 (fi) | 1978-12-01 |
Family
ID=4279532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7408640A Expired FR2223766B1 (fi) | 1973-03-30 | 1974-03-14 |
Country Status (17)
| Country | Link |
|---|---|
| US (1) | US3872449A (fi) |
| JP (1) | JPS5619671B2 (fi) |
| AT (1) | AT340807B (fi) |
| BE (1) | BE812331A (fi) |
| CA (1) | CA1063260A (fi) |
| CH (1) | CH570016A5 (fi) |
| DE (1) | DE2408374B2 (fi) |
| DK (1) | DK137099B (fi) |
| ES (1) | ES425125A1 (fi) |
| FI (1) | FI55420C (fi) |
| FR (1) | FR2223766B1 (fi) |
| GB (1) | GB1430035A (fi) |
| IT (1) | IT1014554B (fi) |
| NL (1) | NL7403973A (fi) |
| NO (1) | NO136383C (fi) |
| SE (1) | SE389569B (fi) |
| ZA (1) | ZA741754B (fi) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5512635B2 (fi) * | 1972-07-26 | 1980-04-03 | ||
| CH576175A5 (fi) * | 1974-12-19 | 1976-05-31 | Cerberus Ag | |
| JPS5737265Y2 (fi) * | 1976-07-07 | 1982-08-17 | ||
| US4131888A (en) * | 1976-08-18 | 1978-12-26 | American District Telegraph Company | Dual projected-beam smoke detector |
| US4091363A (en) * | 1977-01-03 | 1978-05-23 | Pittway Corporation | Self-contained fire detector with interconnection circuitry |
| FR2386874A1 (fr) * | 1977-04-08 | 1978-11-03 | Gamma Electronic | Detecteur de fumees a ionisation associe a un circuit electronique de mesure velocimetrique |
| US4222046A (en) * | 1978-07-31 | 1980-09-09 | Honeywell Inc. | Abnormal condition responsive means with periodic high sensitivity |
| US4250500A (en) * | 1979-10-22 | 1981-02-10 | Rca Corporation | Smoke detector |
| CA1148279A (en) * | 1979-12-14 | 1983-06-14 | Andreas Scheidweiler | Ionization smoke detector with increased operational reliability |
| DE3127324A1 (de) * | 1981-07-10 | 1983-01-27 | Siemens AG, 1000 Berlin und 8000 München | Verfahren und anordnung zur erhoehung der ansprechempfindlichkeit und der stoersicherheit in einer gefahren-, insbesondere brandmeldeanlage |
| US4539488A (en) * | 1981-11-30 | 1985-09-03 | Zenith Electronics Corporation | Pulse wave to parabola wave converter |
| JPS60126798A (ja) * | 1983-12-13 | 1985-07-06 | ニッタン株式会社 | 環境異常検出装置 |
| US5019805A (en) * | 1989-02-03 | 1991-05-28 | Flash-Alert Inc. | Smoke detector with strobed visual alarm and remote alarm coupling |
| US6188318B1 (en) | 1999-06-29 | 2001-02-13 | Pittway Corp. | Dual-technology intrusion detector with pet immunity |
| CN102455288B (zh) * | 2010-10-15 | 2014-10-15 | 西门子公司 | 通过在线信号电平监控对传感器装置的光电信号路径进行校准 |
| DE102014019172B4 (de) | 2014-12-17 | 2023-12-07 | Elmos Semiconductor Se | Vorrichtung und Verfahren zur Unterscheidung von festen Objekten, Kochdunst und Rauch mit einem kompensierenden optischen Messsystem |
| DE102014019773B4 (de) | 2014-12-17 | 2023-12-07 | Elmos Semiconductor Se | Vorrichtung und Verfahren zur Unterscheidung von festen Objekten, Kochdunst und Rauch mittels des Displays eines Mobiltelefons |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2735007A (en) * | 1956-02-14 | Time-base generator | ||
| US2811711A (en) * | 1951-05-19 | 1957-10-29 | Electronics Corp America | Fire method and apparatus |
| US3582676A (en) * | 1968-09-24 | 1971-06-01 | Bendix Corp | Pulse length normalizing and short pulse eliminating circuit |
| US3531692A (en) * | 1969-03-03 | 1970-09-29 | Combustion Eng | Activity detector having increased accuracy of response |
| JPS482587U (fi) * | 1971-05-25 | 1973-01-12 |
-
1973
- 1973-03-30 CH CH462173A patent/CH570016A5/xx not_active IP Right Cessation
-
1974
- 1974-02-21 DE DE2408374A patent/DE2408374B2/de not_active Ceased
- 1974-02-21 AT AT144074A patent/AT340807B/de not_active IP Right Cessation
- 1974-03-08 US US449287A patent/US3872449A/en not_active Expired - Lifetime
- 1974-03-14 FR FR7408640A patent/FR2223766B1/fr not_active Expired
- 1974-03-14 BE BE142033A patent/BE812331A/xx not_active IP Right Cessation
- 1974-03-18 ZA ZA00741754A patent/ZA741754B/xx unknown
- 1974-03-25 NL NL7403973A patent/NL7403973A/xx unknown
- 1974-03-27 NO NO741081A patent/NO136383C/no unknown
- 1974-03-28 CA CA196,310A patent/CA1063260A/en not_active Expired
- 1974-03-28 JP JP3406574A patent/JPS5619671B2/ja not_active Expired
- 1974-03-28 FI FI960/74A patent/FI55420C/fi active
- 1974-03-29 SE SE7404260A patent/SE389569B/xx unknown
- 1974-03-29 DK DK175474AA patent/DK137099B/da not_active IP Right Cessation
- 1974-03-29 GB GB1412074A patent/GB1430035A/en not_active Expired
- 1974-03-30 ES ES425125A patent/ES425125A1/es not_active Expired
- 1974-04-08 IT IT20649/74A patent/IT1014554B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| US3872449A (en) | 1975-03-18 |
| BE812331A (fr) | 1974-07-01 |
| AU6689674A (en) | 1975-09-25 |
| DE2408374A1 (de) | 1974-10-17 |
| AT340807B (de) | 1978-01-10 |
| SE389569B (sv) | 1976-11-08 |
| DK137099B (da) | 1978-01-16 |
| DE2408374B2 (de) | 1978-06-01 |
| ZA741754B (en) | 1975-01-29 |
| NL7403973A (fi) | 1974-10-02 |
| CA1063260A (en) | 1979-09-25 |
| FR2223766B1 (fi) | 1978-12-01 |
| FI55420C (fi) | 1979-07-10 |
| NO741081L (no) | 1974-10-01 |
| GB1430035A (en) | 1976-03-31 |
| ES425125A1 (es) | 1976-06-16 |
| NO136383B (fi) | 1977-05-16 |
| IT1014554B (it) | 1977-04-30 |
| ATA144074A (de) | 1977-04-15 |
| JPS49131099A (fi) | 1974-12-16 |
| NO136383C (no) | 1977-08-31 |
| CH570016A5 (fi) | 1975-11-28 |
| FI55420B (fi) | 1979-03-30 |
| DK137099C (fi) | 1978-06-12 |
| JPS5619671B2 (fi) | 1981-05-08 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |