IE41452B1 - Improvements in or relating to fire detectors - Google Patents

Improvements in or relating to fire detectors

Info

Publication number
IE41452B1
IE41452B1 IE1827/75A IE182775A IE41452B1 IE 41452 B1 IE41452 B1 IE 41452B1 IE 1827/75 A IE1827/75 A IE 1827/75A IE 182775 A IE182775 A IE 182775A IE 41452 B1 IE41452 B1 IE 41452B1
Authority
IE
Ireland
Prior art keywords
support
housing
electrode
support member
ionization chamber
Prior art date
Application number
IE1827/75A
Other languages
English (en)
Other versions
IE41452L (en
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
Publication of IE41452L publication Critical patent/IE41452L/xx
Publication of IE41452B1 publication Critical patent/IE41452B1/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)
  • 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)
  • Fire Alarms (AREA)
  • Sampling And Sample Adjustment (AREA)
IE1827/75A 1974-08-26 1975-08-19 Improvements in or relating to fire detectors IE41452B1 (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 (2)

Publication Number Publication Date
IE41452L IE41452L (en) 1976-02-26
IE41452B1 true IE41452B1 (en) 1980-01-02

Family

ID=25568066

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1827/75A IE41452B1 (en) 1974-08-26 1975-08-19 Improvements in or relating to fire detectors

Country Status (21)

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

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 (es) * 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 (es) * 1971-06-04 1973-01-23

Also Published As

Publication number Publication date
FR2283492B1 (es) 1979-05-04
IE41452L (en) 1976-02-26
FR2283492A1 (fr) 1976-03-26
DE2537598B2 (de) 1980-11-06
LU73252A1 (es) 1976-05-31
SE439209B (sv) 1985-06-03
PH11514A (en) 1978-02-01
IT1042015B (it) 1980-01-30
BE832768A (fr) 1975-12-16
NO752918L (es) 1976-02-27
DE2537598C3 (de) 1984-12-20
YU37410B (en) 1984-08-31
SE7509478L (sv) 1976-02-27
NO138307B (no) 1978-05-02
ZA745453B (en) 1976-04-28
JPS5635236B2 (es) 1981-08-15
CA1042088A (en) 1978-11-07
AU8412175A (en) 1977-02-24
DK384275A (es) 1976-02-27
GB1492193A (en) 1977-11-16
JPS5149784A (es) 1976-04-30
NO138307C (no) 1978-08-16
NL7509918A (nl) 1976-03-01
DE2537598A1 (de) 1976-03-11
CH600455A5 (es) 1978-06-15
NL167785B (nl) 1981-08-17
IN143233B (es) 1977-10-22
DK136793C (es) 1978-04-24
SU703038A3 (ru) 1979-12-05
YU216775A (en) 1983-04-27
DK136793B (da) 1977-11-21
AU501762B2 (en) 1979-06-28
NL167785C (nl) 1982-01-18
BR7505431A (pt) 1976-08-03

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