FR2131867A1 - - Google Patents
Info
- Publication number
- FR2131867A1 FR2131867A1 FR7111277A FR7111277A FR2131867A1 FR 2131867 A1 FR2131867 A1 FR 2131867A1 FR 7111277 A FR7111277 A FR 7111277A FR 7111277 A FR7111277 A FR 7111277A FR 2131867 A1 FR2131867 A1 FR 2131867A1
- 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 SYSTEMS, e.g. PERSONAL 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B26/00—Alarm systems in which substations are interrogated in succession by a central station
- G08B26/001—Alarm systems in which substations are interrogated in succession by a central station with individual interrogation of substations connected in parallel
- G08B26/002—Alarm systems in which substations are interrogated in succession by a central station with individual interrogation of substations connected in parallel only replying the state of the sensor
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2684371 | 1971-03-31 | ||
| JP2684471 | 1971-03-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2131867A1 true FR2131867A1 (https=) | 1972-11-17 |
| FR2131867B1 FR2131867B1 (https=) | 1974-10-31 |
Family
ID=26364684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7111277A Expired FR2131867B1 (https=) | 1971-03-31 | 1971-03-31 |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2131867B1 (https=) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3430218A (en) * | 1965-09-13 | 1969-02-25 | Charles P Healey | Alarm reporting system |
-
1971
- 1971-03-31 FR FR7111277A patent/FR2131867B1/fr not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3430218A (en) * | 1965-09-13 | 1969-02-25 | Charles P Healey | Alarm reporting system |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2131867B1 (https=) | 1974-10-31 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |