FR2283492B1 - - Google Patents
Info
- Publication number
- FR2283492B1 FR2283492B1 FR7526259A FR7526259A FR2283492B1 FR 2283492 B1 FR2283492 B1 FR 2283492B1 FR 7526259 A FR7526259 A FR 7526259A FR 7526259 A FR7526259 A FR 7526259A FR 2283492 B1 FR2283492 B1 FR 2283492B1
- 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
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
- G01N27/64—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber
- G01N27/66—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber and measuring current or voltage
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Emergency Management (AREA)
- Immunology (AREA)
- Electrochemistry (AREA)
- Biochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Business, Economics & Management (AREA)
- Toxicology (AREA)
- Fire-Detection Mechanisms (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Control Of Combustion (AREA)
- Fire Alarms (AREA)
- Sampling And Sample Adjustment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA00745453A ZA745453B (en) | 1974-08-26 | 1974-08-26 | Improvements in or relating to fire detectors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2283492A1 FR2283492A1 (fr) | 1976-03-26 |
| FR2283492B1 true FR2283492B1 (da) | 1979-05-04 |
Family
ID=25568066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7526259A Granted FR2283492A1 (fr) | 1974-08-26 | 1975-08-26 | Detecteur de flamme perfectionne |
Country Status (21)
| Country | Link |
|---|---|
| JP (1) | JPS5635236B2 (da) |
| AU (1) | AU501762B2 (da) |
| BE (1) | BE832768A (da) |
| BR (1) | BR7505431A (da) |
| CA (1) | CA1042088A (da) |
| CH (1) | CH600455A5 (da) |
| DE (1) | DE2537598C3 (da) |
| DK (1) | DK136793B (da) |
| FR (1) | FR2283492A1 (da) |
| GB (1) | GB1492193A (da) |
| IE (1) | IE41452B1 (da) |
| IN (1) | IN143233B (da) |
| IT (1) | IT1042015B (da) |
| LU (1) | LU73252A1 (da) |
| NL (1) | NL167785C (da) |
| NO (1) | NO138307C (da) |
| PH (1) | PH11514A (da) |
| SE (1) | SE439209B (da) |
| SU (1) | SU703038A3 (da) |
| YU (1) | YU37410B (da) |
| ZA (1) | ZA745453B (da) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2711457C2 (de) * | 1977-03-16 | 1985-06-27 | Siemens AG, 1000 Berlin und 8000 München | Ionisationsbrandmelder |
| CH681932A5 (da) * | 1990-12-04 | 1993-06-15 | Cerberus Ag | |
| CH682423A5 (de) * | 1991-03-13 | 1993-09-15 | Asea Brown Boveri | Verfahren und Vorrichtung zur Messung der Konzentration von in einem Gas befindlichen Partikeln. |
| DE102004020489B4 (de) * | 2004-04-26 | 2007-06-28 | Minimax Gmbh & Co. Kg | Brandmelder für Einsatz in Außenatmosphäre |
| CN110185461A (zh) * | 2019-06-28 | 2019-08-30 | 中交路桥建设有限公司 | 实时探测隧道地质条件的盾构机 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2408051A (en) * | 1942-04-04 | 1946-09-24 | American District Telegraph Co | Fire and smoke detector and the like |
| DE2204930C3 (de) * | 1971-02-08 | 1974-06-20 | Veb Rft Messelektronik Otto Schoen, X 8016 Dresden | Ionisationsfeuermelder |
| JPS485979U (da) * | 1971-06-04 | 1973-01-23 |
-
1974
- 1974-08-26 ZA ZA00745453A patent/ZA745453B/xx unknown
-
1975
- 1975-08-19 IE IE1827/75A patent/IE41452B1/en unknown
- 1975-08-19 GB GB34390/75A patent/GB1492193A/en not_active Expired
- 1975-08-19 IN IN1615/CAL/75A patent/IN143233B/en unknown
- 1975-08-20 AU AU84121/75A patent/AU501762B2/en not_active Expired
- 1975-08-21 CH CH1087075A patent/CH600455A5/xx not_active IP Right Cessation
- 1975-08-21 NL NL7509918A patent/NL167785C/xx not_active IP Right Cessation
- 1975-08-23 DE DE2537598A patent/DE2537598C3/de not_active Expired
- 1975-08-25 PH PH17497A patent/PH11514A/en unknown
- 1975-08-25 LU LU73252A patent/LU73252A1/xx unknown
- 1975-08-25 CA CA234,041A patent/CA1042088A/en not_active Expired
- 1975-08-25 NO NO75752918A patent/NO138307C/no unknown
- 1975-08-25 SU SU752167381A patent/SU703038A3/ru active
- 1975-08-25 BR BR7505431*A patent/BR7505431A/pt unknown
- 1975-08-25 IT IT26556/75A patent/IT1042015B/it active
- 1975-08-26 FR FR7526259A patent/FR2283492A1/fr active Granted
- 1975-08-26 DK DK384275AA patent/DK136793B/da unknown
- 1975-08-26 JP JP10336475A patent/JPS5635236B2/ja not_active Expired
- 1975-08-26 SE SE7509478A patent/SE439209B/xx not_active IP Right Cessation
- 1975-08-26 YU YU2167/75A patent/YU37410B/xx unknown
- 1975-08-26 BE BE159485A patent/BE832768A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| IE41452L (en) | 1976-02-26 |
| FR2283492A1 (fr) | 1976-03-26 |
| DE2537598B2 (de) | 1980-11-06 |
| LU73252A1 (da) | 1976-05-31 |
| SE439209B (sv) | 1985-06-03 |
| PH11514A (en) | 1978-02-01 |
| IT1042015B (it) | 1980-01-30 |
| BE832768A (fr) | 1975-12-16 |
| NO752918L (da) | 1976-02-27 |
| DE2537598C3 (de) | 1984-12-20 |
| YU37410B (en) | 1984-08-31 |
| SE7509478L (sv) | 1976-02-27 |
| NO138307B (no) | 1978-05-02 |
| ZA745453B (en) | 1976-04-28 |
| JPS5635236B2 (da) | 1981-08-15 |
| CA1042088A (en) | 1978-11-07 |
| AU8412175A (en) | 1977-02-24 |
| DK384275A (da) | 1976-02-27 |
| GB1492193A (en) | 1977-11-16 |
| JPS5149784A (da) | 1976-04-30 |
| NO138307C (no) | 1978-08-16 |
| NL7509918A (nl) | 1976-03-01 |
| DE2537598A1 (de) | 1976-03-11 |
| CH600455A5 (da) | 1978-06-15 |
| NL167785B (nl) | 1981-08-17 |
| IN143233B (da) | 1977-10-22 |
| DK136793C (da) | 1978-04-24 |
| SU703038A3 (ru) | 1979-12-05 |
| YU216775A (en) | 1983-04-27 |
| IE41452B1 (en) | 1980-01-02 |
| DK136793B (da) | 1977-11-21 |
| AU501762B2 (en) | 1979-06-28 |
| NL167785C (nl) | 1982-01-18 |
| BR7505431A (pt) | 1976-08-03 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |