FR2357268B1 - - Google Patents
Info
- Publication number
- FR2357268B1 FR2357268B1 FR7720803A FR7720803A FR2357268B1 FR 2357268 B1 FR2357268 B1 FR 2357268B1 FR 7720803 A FR7720803 A FR 7720803A FR 7720803 A FR7720803 A FR 7720803A FR 2357268 B1 FR2357268 B1 FR 2357268B1
- 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.)
- 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
- G08B17/11—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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1976089401U JPS5737265Y2 (fr) | 1976-07-07 | 1976-07-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2357268A1 FR2357268A1 (fr) | 1978-02-03 |
| FR2357268B1 true FR2357268B1 (fr) | 1981-03-20 |
Family
ID=13969612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7720803A Granted FR2357268A1 (fr) | 1976-07-07 | 1977-07-06 | Detecteur de fumee du type a accumulation |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4123656A (fr) |
| JP (1) | JPS5737265Y2 (fr) |
| CH (1) | CH617524A5 (fr) |
| DE (1) | DE2730485A1 (fr) |
| FR (1) | FR2357268A1 (fr) |
| GB (1) | GB1539865A (fr) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5831275Y2 (ja) * | 1978-08-26 | 1983-07-11 | ホーチキ株式会社 | イオン化式煙感知器 |
| NO168006C (no) * | 1985-02-27 | 1992-01-02 | Nohmi Bosai Kogyo Co Ltd | Branndetekteringssystem. |
| JPS62229394A (ja) * | 1986-03-14 | 1987-10-08 | ニツタン株式会社 | 異常警報装置 |
| JPS6346599A (ja) * | 1986-08-14 | 1988-02-27 | ニツタン株式会社 | 環境異常検出器 |
| US6509838B1 (en) * | 2000-02-08 | 2003-01-21 | Peter P. Payne | Constant current flame ionization circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH570016A5 (fr) * | 1973-03-30 | 1975-11-28 | Cerberus Ag |
-
1976
- 1976-07-07 JP JP1976089401U patent/JPS5737265Y2/ja not_active Expired
-
1977
- 1977-07-06 US US05/813,182 patent/US4123656A/en not_active Expired - Lifetime
- 1977-07-06 FR FR7720803A patent/FR2357268A1/fr active Granted
- 1977-07-06 DE DE19772730485 patent/DE2730485A1/de not_active Withdrawn
- 1977-07-07 CH CH840377A patent/CH617524A5/de not_active IP Right Cessation
- 1977-07-07 GB GB28586/77A patent/GB1539865A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2357268A1 (fr) | 1978-02-03 |
| GB1539865A (en) | 1979-02-07 |
| US4123656A (en) | 1978-10-31 |
| JPS5737265Y2 (fr) | 1982-08-17 |
| CH617524A5 (fr) | 1980-05-30 |
| DE2730485A1 (de) | 1978-01-12 |
| JPS538887U (fr) | 1978-01-25 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |