IT1023231B - Perfezionamento nei dispositivi rivelatori di fuoco - Google Patents
Perfezionamento nei dispositivi rivelatori di fuocoInfo
- Publication number
- IT1023231B IT1023231B IT5401174A IT5401174A IT1023231B IT 1023231 B IT1023231 B IT 1023231B IT 5401174 A IT5401174 A IT 5401174A IT 5401174 A IT5401174 A IT 5401174A IT 1023231 B IT1023231 B IT 1023231B
- Authority
- IT
- Italy
- Prior art keywords
- improvement
- fire detector
- detector devices
- devices
- fire
- Prior art date
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
-
- 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)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Fire Alarms (AREA)
- Alarm Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US43113774A | 1974-01-07 | 1974-01-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1023231B true IT1023231B (it) | 1978-05-10 |
Family
ID=23710644
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT5401174A IT1023231B (it) | 1974-01-07 | 1974-11-12 | Perfezionamento nei dispositivi rivelatori di fuoco |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5726398B2 (ja) |
DE (1) | DE2500435A1 (ja) |
FR (1) | FR2257119B3 (ja) |
GB (1) | GB1499581A (ja) |
IT (1) | IT1023231B (ja) |
-
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 |
---|---|
GB1499581A (en) | 1978-02-01 |
DE2500435A1 (de) | 1975-07-17 |
FR2257119A1 (ja) | 1975-08-01 |
JPS50103300A (ja) | 1975-08-15 |
JPS5726398B2 (ja) | 1982-06-04 |
FR2257119B3 (ja) | 1977-07-22 |
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