LU73252A1 - - Google Patents
Info
- Publication number
- LU73252A1 LU73252A1 LU73252A LU73252A LU73252A1 LU 73252 A1 LU73252 A1 LU 73252A1 LU 73252 A LU73252 A LU 73252A LU 73252 A LU73252 A LU 73252A LU 73252 A1 LU73252 A1 LU 73252A1
- Authority
- LU
- Luxembourg
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
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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
- G08B17/113—Constructional details
Landscapes
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Business, Economics & Management (AREA)
- Biochemistry (AREA)
- Emergency Management (AREA)
- Immunology (AREA)
- Pathology (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 (1)
| Publication Number | Publication Date |
|---|---|
| LU73252A1 true LU73252A1 (enrdf_load_stackoverflow) | 1976-05-31 |
Family
ID=25568066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU73252A LU73252A1 (enrdf_load_stackoverflow) | 1974-08-26 | 1975-08-25 |
Country Status (21)
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 (enrdf_load_stackoverflow) * | 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 (enrdf_load_stackoverflow) * | 1971-06-04 | 1973-01-23 |
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1974
- 1974-08-26 ZA ZA00745453A patent/ZA745453B/xx unknown
-
1975
- 1975-08-19 IE IE1827/75A patent/IE41452B1/en unknown
- 1975-08-19 IN IN1615/CAL/75A patent/IN143233B/en unknown
- 1975-08-19 GB GB34390/75A patent/GB1492193A/en not_active Expired
- 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 IT IT26556/75A patent/IT1042015B/it active
- 1975-08-25 BR BR7505431*A patent/BR7505431A/pt unknown
- 1975-08-25 CA CA234,041A patent/CA1042088A/en not_active Expired
- 1975-08-25 LU LU73252A patent/LU73252A1/xx unknown
- 1975-08-25 NO NO75752918A patent/NO138307C/no unknown
- 1975-08-25 PH PH17497A patent/PH11514A/en unknown
- 1975-08-25 SU SU752167381A patent/SU703038A3/ru active
- 1975-08-26 YU YU2167/75A patent/YU37410B/xx 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 FR FR7526259A patent/FR2283492A1/fr active Granted
- 1975-08-26 DK DK384275AA patent/DK136793B/da unknown
- 1975-08-26 BE BE159485A patent/BE832768A/xx not_active IP Right Cessation