ZA745453B - Improvements in or relating to fire detectors - Google Patents
Improvements in or relating to fire detectorsInfo
- Publication number
- ZA745453B ZA745453B ZA00745453A ZA745453A ZA745453B ZA 745453 B ZA745453 B ZA 745453B ZA 00745453 A ZA00745453 A ZA 00745453A ZA 745453 A ZA745453 A ZA 745453A ZA 745453 B ZA745453 B ZA 745453B
- Authority
- ZA
- South Africa
- Prior art keywords
- relating
- fire detectors
- detectors
- fire
- Prior art date
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)
- 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)
Priority Applications (21)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA00745453A ZA745453B (en) | 1974-08-26 | 1974-08-26 | Improvements in or relating to fire detectors |
IE1827/75A IE41452B1 (en) | 1974-08-26 | 1975-08-19 | Improvements in or relating to fire detectors |
GB34390/75A GB1492193A (en) | 1974-08-26 | 1975-08-19 | Fire detectors |
IN1615/CAL/75A IN143233B (en) | 1974-08-26 | 1975-08-19 | |
AU84121/75A AU501762B2 (en) | 1974-08-26 | 1975-08-20 | Ionization smoke detector |
CH1087075A CH600455A5 (en) | 1974-08-26 | 1975-08-21 | |
NL7509918A NL167785C (en) | 1974-08-26 | 1975-08-21 | FIRE DETECTION DEVICE. |
DE2537598A DE2537598C3 (en) | 1974-08-26 | 1975-08-23 | Fire detector |
SU752167381A SU703038A3 (en) | 1974-08-26 | 1975-08-25 | Gas analyzer |
BR7505431*A BR7505431A (en) | 1974-08-26 | 1975-08-25 | IMPROVEMENT IN FIRE DETECTOR |
PH17497A PH11514A (en) | 1974-08-26 | 1975-08-25 | Improvements in or relating to fire detectors |
LU73252A LU73252A1 (en) | 1974-08-26 | 1975-08-25 | |
NO75752918A NO138307C (en) | 1974-08-26 | 1975-08-25 | FIRE DETECTOR. |
CA234,041A CA1042088A (en) | 1974-08-26 | 1975-08-25 | Fire detectors |
IT26556/75A IT1042015B (en) | 1974-08-26 | 1975-08-25 | IMPROVEMENTS IN FIRE DETECTORS |
FR7526259A FR2283492A1 (en) | 1974-08-26 | 1975-08-26 | PERFECTED FLAME DETECTOR |
DK384275AA DK136793B (en) | 1974-08-26 | 1975-08-26 | Fire detector. |
SE7509478A SE439209B (en) | 1974-08-26 | 1975-08-26 | FIRE DETECTOR |
JP10336475A JPS5635236B2 (en) | 1974-08-26 | 1975-08-26 | |
BE159485A BE832768A (en) | 1974-08-26 | 1975-08-26 | IMPROVEMENTS RELATED TO FIRE DETECTORS |
YU2167/75A YU37410B (en) | 1974-08-26 | 1975-08-26 | Fire detector |
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 |
---|---|
ZA745453B true ZA745453B (en) | 1976-04-28 |
Family
ID=25568066
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA00745453A ZA745453B (en) | 1974-08-26 | 1974-08-26 | Improvements in or relating to fire detectors |
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 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/en not_active IP Right Cessation
- 1975-08-23 DE DE2537598A patent/DE2537598C3/en not_active Expired
- 1975-08-25 NO NO75752918A patent/NO138307C/en unknown
- 1975-08-25 BR BR7505431*A patent/BR7505431A/en unknown
- 1975-08-25 IT IT26556/75A patent/IT1042015B/en active
- 1975-08-25 PH PH17497A patent/PH11514A/en unknown
- 1975-08-25 SU SU752167381A patent/SU703038A3/en active
- 1975-08-25 CA CA234,041A patent/CA1042088A/en not_active Expired
- 1975-08-25 LU LU73252A patent/LU73252A1/xx unknown
- 1975-08-26 DK DK384275AA patent/DK136793B/en unknown
- 1975-08-26 YU YU2167/75A patent/YU37410B/en unknown
- 1975-08-26 BE BE159485A patent/BE832768A/en not_active IP Right Cessation
- 1975-08-26 JP JP10336475A patent/JPS5635236B2/ja not_active Expired
- 1975-08-26 FR FR7526259A patent/FR2283492A1/en active Granted
- 1975-08-26 SE SE7509478A patent/SE439209B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DK136793B (en) | 1977-11-21 |
AU8412175A (en) | 1977-02-24 |
DE2537598A1 (en) | 1976-03-11 |
DE2537598B2 (en) | 1980-11-06 |
NL167785C (en) | 1982-01-18 |
JPS5635236B2 (en) | 1981-08-15 |
NL167785B (en) | 1981-08-17 |
BR7505431A (en) | 1976-08-03 |
PH11514A (en) | 1978-02-01 |
IE41452L (en) | 1976-02-26 |
LU73252A1 (en) | 1976-05-31 |
SE439209B (en) | 1985-06-03 |
DK384275A (en) | 1976-02-27 |
AU501762B2 (en) | 1979-06-28 |
YU216775A (en) | 1983-04-27 |
GB1492193A (en) | 1977-11-16 |
BE832768A (en) | 1975-12-16 |
CA1042088A (en) | 1978-11-07 |
NO752918L (en) | 1976-02-27 |
SU703038A3 (en) | 1979-12-05 |
IN143233B (en) | 1977-10-22 |
IT1042015B (en) | 1980-01-30 |
FR2283492B1 (en) | 1979-05-04 |
IE41452B1 (en) | 1980-01-02 |
CH600455A5 (en) | 1978-06-15 |
YU37410B (en) | 1984-08-31 |
JPS5149784A (en) | 1976-04-30 |
SE7509478L (en) | 1976-02-27 |
DK136793C (en) | 1978-04-24 |
NO138307B (en) | 1978-05-02 |
NL7509918A (en) | 1976-03-01 |
FR2283492A1 (en) | 1976-03-26 |
NO138307C (en) | 1978-08-16 |
DE2537598C3 (en) | 1984-12-20 |
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