NL7008943A - - Google Patents
Info
- Publication number
- NL7008943A NL7008943A NL7008943A NL7008943A NL7008943A NL 7008943 A NL7008943 A NL 7008943A NL 7008943 A NL7008943 A NL 7008943A NL 7008943 A NL7008943 A NL 7008943A NL 7008943 A NL7008943 A NL 7008943A
- Authority
- NL
- Netherlands
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
- G08B17/113—Constructional details
-
- 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)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4866969 | 1969-06-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7008943A true NL7008943A (en) | 1970-12-23 |
Family
ID=12809721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7008943A NL7008943A (en) | 1969-06-21 | 1970-06-18 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3666954A (en) |
| DE (1) | DE2029485B2 (en) |
| GB (1) | GB1260984A (en) |
| NL (1) | NL7008943A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE790355A (en) * | 1971-10-20 | 1973-02-15 | Bevaknings A B Securitas | SMOKE DETECTOR |
| ZA734995B (en) * | 1973-07-23 | 1974-10-30 | Anglo Amer Corp South Africa | Improvemente in or relating to fire detectors |
| JPS52111590U (en) * | 1976-02-20 | 1977-08-24 | ||
| FR2386874A1 (en) * | 1977-04-08 | 1978-11-03 | Gamma Electronic | IONIZATION SMOKE DETECTOR ASSOCIATED WITH AN ELECTRONIC VELOCIMETRIC MEASUREMENT CIRCUIT |
| FR2528980A1 (en) * | 1982-06-17 | 1983-12-23 | Pgep | IONIZATION LEVEL DETECTOR OF A GAS MEDIUM CONTROLLED BY ELECTRIC ARC |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH355380A (en) * | 1957-10-30 | 1961-06-30 | Cerberus Gmbh | Device for determining changes in the composition of a gas |
| US3271756A (en) * | 1960-03-22 | 1966-09-06 | Harold J Burke | Method and apparatus for detecting a hazardous condition |
| JPS446089Y1 (en) * | 1966-03-30 | 1969-03-05 |
-
1970
- 1970-06-15 DE DE19702029485 patent/DE2029485B2/en not_active Withdrawn
- 1970-06-17 GB GB29504/70A patent/GB1260984A/en not_active Expired
- 1970-06-18 US US47427A patent/US3666954A/en not_active Expired - Lifetime
- 1970-06-18 NL NL7008943A patent/NL7008943A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2029485B2 (en) | 1971-11-25 |
| DE2029485A1 (en) | 1971-01-14 |
| US3666954A (en) | 1972-05-30 |
| GB1260984A (en) | 1972-01-19 |