JPS50103300A - - Google Patents
Info
- Publication number
- JPS50103300A JPS50103300A JP12886674A JP12886674A JPS50103300A JP S50103300 A JPS50103300 A JP S50103300A JP 12886674 A JP12886674 A JP 12886674A JP 12886674 A JP12886674 A JP 12886674A JP S50103300 A JPS50103300 A JP S50103300A
- 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.)
- Granted
Links
Classifications
-
- 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
- G08B29/18—Prevention or correction of operating errors
- G08B29/181—Prevention or correction of operating errors due to failing power supply
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- 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
-
- 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
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)
- 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 |
|---|---|---|---|
| US43113774A | 1974-01-07 | 1974-01-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS50103300A true JPS50103300A (fr) | 1975-08-15 |
| JPS5726398B2 JPS5726398B2 (fr) | 1982-06-04 |
Family
ID=23710644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12886674A Expired JPS5726398B2 (fr) | 1974-01-07 | 1974-11-08 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS5726398B2 (fr) |
| DE (1) | DE2500435A1 (fr) |
| FR (1) | FR2257119B3 (fr) |
| GB (1) | GB1499581A (fr) |
| IT (1) | IT1023231B (fr) |
-
1974
- 1974-10-14 FR FR7434510A patent/FR2257119B3/fr not_active Expired
- 1974-11-08 JP JP12886674A patent/JPS5726398B2/ja not_active Expired
- 1974-11-12 IT IT5401174A patent/IT1023231B/it active
-
1975
- 1975-01-03 GB GB17175A patent/GB1499581A/en not_active Expired
- 1975-01-07 DE DE19752500435 patent/DE2500435A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5726398B2 (fr) | 1982-06-04 |
| IT1023231B (it) | 1978-05-10 |
| GB1499581A (en) | 1978-02-01 |
| DE2500435A1 (de) | 1975-07-17 |
| FR2257119B3 (fr) | 1977-07-22 |
| FR2257119A1 (fr) | 1975-08-01 |