DK384275A - - Google Patents
Info
- Publication number
- DK384275A DK384275A DK384275A DK384275A DK384275A DK 384275 A DK384275 A DK 384275A DK 384275 A DK384275 A DK 384275A DK 384275 A DK384275 A DK 384275A DK 384275 A DK384275 A DK 384275A
- Authority
- DK
- Denmark
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)
- Sampling And Sample Adjustment (AREA)
- Fire Alarms (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 (3)
| Publication Number | Publication Date |
|---|---|
| DK384275A true DK384275A (en) | 1976-02-27 |
| DK136793B DK136793B (en) | 1977-11-21 |
| DK136793C DK136793C (en) | 1978-04-24 |
Family
ID=25568066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK384275AA DK136793B (en) | 1974-08-26 | 1975-08-26 | Fire detector. |
Country Status (21)
| Country | Link |
|---|---|
| JP (1) | JPS5635236B2 (en) |
| AU (1) | AU501762B2 (en) |
| BE (1) | BE832768A (en) |
| BR (1) | BR7505431A (en) |
| CA (1) | CA1042088A (en) |
| CH (1) | CH600455A5 (en) |
| DE (1) | DE2537598C3 (en) |
| DK (1) | DK136793B (en) |
| FR (1) | FR2283492A1 (en) |
| GB (1) | GB1492193A (en) |
| IE (1) | IE41452B1 (en) |
| IN (1) | IN143233B (en) |
| IT (1) | IT1042015B (en) |
| LU (1) | LU73252A1 (en) |
| NL (1) | NL167785C (en) |
| NO (1) | NO138307C (en) |
| PH (1) | PH11514A (en) |
| SE (1) | SE439209B (en) |
| SU (1) | SU703038A3 (en) |
| YU (1) | YU37410B (en) |
| ZA (1) | ZA745453B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2711457C2 (en) * | 1977-03-16 | 1985-06-27 | Siemens AG, 1000 Berlin und 8000 München | Ionization fire detector |
| CH681932A5 (en) * | 1990-12-04 | 1993-06-15 | Cerberus Ag | |
| CH682423A5 (en) * | 1991-03-13 | 1993-09-15 | Asea Brown Boveri | Method and apparatus for measuring the concentration of a gas contained in particles. |
| DE102004020489B4 (en) * | 2004-04-26 | 2007-06-28 | Minimax Gmbh & Co. Kg | Fire detector for use in outdoor atmosphere |
| CN110185461A (en) * | 2019-06-28 | 2019-08-30 | 中交路桥建设有限公司 | The shield machine of real-time detection tunnel geology condition |
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 (en) * | 1971-02-08 | 1974-06-20 | Veb Rft Messelektronik Otto Schoen, X 8016 Dresden | Ionization fire alarms |
| JPS485979U (en) * | 1971-06-04 | 1973-01-23 |
-
1974
- 1974-08-26 ZA ZA00745453A patent/ZA745453B/en unknown
-
1975
- 1975-08-19 GB GB34390/75A patent/GB1492193A/en not_active Expired
- 1975-08-19 IN IN1615/CAL/75A patent/IN143233B/en unknown
- 1975-08-19 IE IE1827/75A patent/IE41452B1/en unknown
- 1975-08-20 AU AU84121/75A patent/AU501762B2/en not_active Expired
- 1975-08-21 NL NL7509918A patent/NL167785C/en not_active IP Right Cessation
- 1975-08-21 CH CH1087075A patent/CH600455A5/xx not_active IP Right Cessation
- 1975-08-23 DE DE2537598A patent/DE2537598C3/en not_active Expired
- 1975-08-25 BR BR7505431*A patent/BR7505431A/en unknown
- 1975-08-25 IT IT26556/75A patent/IT1042015B/en active
- 1975-08-25 SU SU752167381A patent/SU703038A3/en active
- 1975-08-25 NO NO75752918A patent/NO138307C/en unknown
- 1975-08-25 LU LU73252A patent/LU73252A1/xx unknown
- 1975-08-25 PH PH17497A patent/PH11514A/en unknown
- 1975-08-25 CA CA234,041A patent/CA1042088A/en not_active Expired
- 1975-08-26 BE BE159485A patent/BE832768A/en not_active IP Right Cessation
- 1975-08-26 YU YU2167/75A patent/YU37410B/en unknown
- 1975-08-26 FR FR7526259A patent/FR2283492A1/en active Granted
- 1975-08-26 SE SE7509478A patent/SE439209B/en not_active IP Right Cessation
- 1975-08-26 JP JP10336475A patent/JPS5635236B2/ja not_active Expired
- 1975-08-26 DK DK384275AA patent/DK136793B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IN143233B (en) | 1977-10-22 |
| NO138307C (en) | 1978-08-16 |
| YU216775A (en) | 1983-04-27 |
| FR2283492A1 (en) | 1976-03-26 |
| CH600455A5 (en) | 1978-06-15 |
| AU501762B2 (en) | 1979-06-28 |
| NO752918L (en) | 1976-02-27 |
| BE832768A (en) | 1975-12-16 |
| CA1042088A (en) | 1978-11-07 |
| DE2537598A1 (en) | 1976-03-11 |
| NL167785B (en) | 1981-08-17 |
| BR7505431A (en) | 1976-08-03 |
| SE7509478L (en) | 1976-02-27 |
| ZA745453B (en) | 1976-04-28 |
| JPS5635236B2 (en) | 1981-08-15 |
| DK136793C (en) | 1978-04-24 |
| NL7509918A (en) | 1976-03-01 |
| PH11514A (en) | 1978-02-01 |
| IE41452B1 (en) | 1980-01-02 |
| SU703038A3 (en) | 1979-12-05 |
| AU8412175A (en) | 1977-02-24 |
| DK136793B (en) | 1977-11-21 |
| DE2537598C3 (en) | 1984-12-20 |
| IT1042015B (en) | 1980-01-30 |
| YU37410B (en) | 1984-08-31 |
| IE41452L (en) | 1976-02-26 |
| GB1492193A (en) | 1977-11-16 |
| NL167785C (en) | 1982-01-18 |
| DE2537598B2 (en) | 1980-11-06 |
| LU73252A1 (en) | 1976-05-31 |
| SE439209B (en) | 1985-06-03 |
| FR2283492B1 (en) | 1979-05-04 |
| JPS5149784A (en) | 1976-04-30 |
| NO138307B (en) | 1978-05-02 |