DK136793C - - Google Patents

Info

Publication number
DK136793C
DK136793C DK384275A DK384275A DK136793C DK 136793 C DK136793 C DK 136793C DK 384275 A DK384275 A DK 384275A DK 384275 A DK384275 A DK 384275A DK 136793 C DK136793 C DK 136793C
Authority
DK
Denmark
Application number
DK384275A
Other languages
Danish (da)
Other versions
DK136793B (da
DK384275A (fi
Inventor
T Newington
N T V D Walt
Original Assignee
Anglo American Corporation Corporation Of South Africa Ltd
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 American Corporation Corporation Of South Africa Ltd filed Critical Anglo American Corporation Corporation Of South Africa Ltd
Publication of DK384275A publication Critical patent/DK384275A/da
Publication of DK136793B publication Critical patent/DK136793B/da
Application granted granted Critical
Publication of DK136793C publication Critical patent/DK136793C/da

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/62Investigating 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
    • G01N27/64Investigating 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
    • G01N27/66Investigating 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
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00Fire alarms; Alarms responsive to explosion
    • G08B17/10Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/11Actuation 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
    • G08B17/113Constructional 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)
DK384275AA 1974-08-26 1975-08-26 Branddetektor. DK136793B (da)

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 DK384275A (fi) 1976-02-27
DK136793B DK136793B (da) 1977-11-21
DK136793C true DK136793C (fi) 1978-04-24

Family

ID=25568066

Family Applications (1)

Application Number Title Priority Date Filing Date
DK384275AA DK136793B (da) 1974-08-26 1975-08-26 Branddetektor.

Country Status (21)

Country Link
JP (1) JPS5635236B2 (fi)
AU (1) AU501762B2 (fi)
BE (1) BE832768A (fi)
BR (1) BR7505431A (fi)
CA (1) CA1042088A (fi)
CH (1) CH600455A5 (fi)
DE (1) DE2537598C3 (fi)
DK (1) DK136793B (fi)
FR (1) FR2283492A1 (fi)
GB (1) GB1492193A (fi)
IE (1) IE41452B1 (fi)
IN (1) IN143233B (fi)
IT (1) IT1042015B (fi)
LU (1) LU73252A1 (fi)
NL (1) NL167785C (fi)
NO (1) NO138307C (fi)
PH (1) PH11514A (fi)
SE (1) SE439209B (fi)
SU (1) SU703038A3 (fi)
YU (1) YU37410B (fi)
ZA (1) ZA745453B (fi)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
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 (fi) * 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)

* 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 (de) * 1971-02-08 1974-06-20 Veb Rft Messelektronik Otto Schoen, X 8016 Dresden Ionisationsfeuermelder
JPS485979U (fi) * 1971-06-04 1973-01-23

Also Published As

Publication number Publication date
IN143233B (fi) 1977-10-22
NO138307C (no) 1978-08-16
YU216775A (en) 1983-04-27
FR2283492A1 (fr) 1976-03-26
CH600455A5 (fi) 1978-06-15
AU501762B2 (en) 1979-06-28
NO752918L (fi) 1976-02-27
BE832768A (fr) 1975-12-16
CA1042088A (en) 1978-11-07
DE2537598A1 (de) 1976-03-11
NL167785B (nl) 1981-08-17
BR7505431A (pt) 1976-08-03
SE7509478L (sv) 1976-02-27
ZA745453B (en) 1976-04-28
JPS5635236B2 (fi) 1981-08-15
NL7509918A (nl) 1976-03-01
PH11514A (en) 1978-02-01
IE41452B1 (en) 1980-01-02
SU703038A3 (ru) 1979-12-05
AU8412175A (en) 1977-02-24
DK136793B (da) 1977-11-21
DE2537598C3 (de) 1984-12-20
IT1042015B (it) 1980-01-30
YU37410B (en) 1984-08-31
IE41452L (en) 1976-02-26
GB1492193A (en) 1977-11-16
NL167785C (nl) 1982-01-18
DE2537598B2 (de) 1980-11-06
LU73252A1 (fi) 1976-05-31
SE439209B (sv) 1985-06-03
FR2283492B1 (fi) 1979-05-04
DK384275A (fi) 1976-02-27
JPS5149784A (fi) 1976-04-30
NO138307B (no) 1978-05-02

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