IT1042015B - IMPROVEMENTS IN FIRE DETECTORS - Google Patents

IMPROVEMENTS IN FIRE DETECTORS

Info

Publication number
IT1042015B
IT1042015B IT26556/75A IT2655675A IT1042015B IT 1042015 B IT1042015 B IT 1042015B IT 26556/75 A IT26556/75 A IT 26556/75A IT 2655675 A IT2655675 A IT 2655675A IT 1042015 B IT1042015 B IT 1042015B
Authority
IT
Italy
Prior art keywords
fire detectors
detectors
fire
Prior art date
Application number
IT26556/75A
Other languages
Italian (it)
Original Assignee
Anglo Amer Corp South Africa
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anglo Amer Corp South Africa filed Critical Anglo Amer Corp South Africa
Application granted granted Critical
Publication of IT1042015B publication Critical patent/IT1042015B/en

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)
  • Fire Alarms (AREA)
  • Sampling And Sample Adjustment (AREA)
IT26556/75A 1974-08-26 1975-08-25 IMPROVEMENTS IN FIRE DETECTORS IT1042015B (en)

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
IT1042015B true IT1042015B (en) 1980-01-30

Family

ID=25568066

Family Applications (1)

Application Number Title Priority Date Filing Date
IT26556/75A IT1042015B (en) 1974-08-26 1975-08-25 IMPROVEMENTS IN 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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
BE832768A (en) 1975-12-16
DE2537598A1 (en) 1976-03-11
IE41452L (en) 1976-02-26
BR7505431A (en) 1976-08-03
SE7509478L (en) 1976-02-27
NO138307C (en) 1978-08-16
NL167785C (en) 1982-01-18
YU37410B (en) 1984-08-31
SU703038A3 (en) 1979-12-05
CA1042088A (en) 1978-11-07
CH600455A5 (en) 1978-06-15
NO752918L (en) 1976-02-27
NL7509918A (en) 1976-03-01
NL167785B (en) 1981-08-17
LU73252A1 (en) 1976-05-31
SE439209B (en) 1985-06-03
YU216775A (en) 1983-04-27
FR2283492A1 (en) 1976-03-26
GB1492193A (en) 1977-11-16
ZA745453B (en) 1976-04-28
DK384275A (en) 1976-02-27
PH11514A (en) 1978-02-01
IE41452B1 (en) 1980-01-02
DE2537598B2 (en) 1980-11-06
IN143233B (en) 1977-10-22
DE2537598C3 (en) 1984-12-20
NO138307B (en) 1978-05-02
JPS5149784A (en) 1976-04-30
DK136793B (en) 1977-11-21
DK136793C (en) 1978-04-24
AU501762B2 (en) 1979-06-28
AU8412175A (en) 1977-02-24
JPS5635236B2 (en) 1981-08-15
FR2283492B1 (en) 1979-05-04

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