NO129270B - - Google Patents

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Publication number
NO129270B
NO129270B NO01806/71A NO180671A NO129270B NO 129270 B NO129270 B NO 129270B NO 01806/71 A NO01806/71 A NO 01806/71A NO 180671 A NO180671 A NO 180671A NO 129270 B NO129270 B NO 129270B
Authority
NO
Norway
Prior art keywords
ionization
fire detector
measuring chamber
voltage
detector according
Prior art date
Application number
NO01806/71A
Other languages
English (en)
Norwegian (no)
Inventor
H Beyersdorf
L Rims
Original Assignee
Preussag Ag Feuerschutz
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
Priority claimed from DE19712121382 external-priority patent/DE2121382A1/de
Application filed by Preussag Ag Feuerschutz filed Critical Preussag Ag Feuerschutz
Publication of NO129270B publication Critical patent/NO129270B/no

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
NO01806/71A 1970-05-16 1971-05-12 NO129270B (ca)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2024116 1970-05-16
DE19712121382 DE2121382A1 (de) 1971-04-30 1971-04-30 Iomsations Feuermelder

Publications (1)

Publication Number Publication Date
NO129270B true NO129270B (ca) 1974-03-18

Family

ID=25759156

Family Applications (1)

Application Number Title Priority Date Filing Date
NO01806/71A NO129270B (ca) 1970-05-16 1971-05-12

Country Status (9)

Country Link
US (1) US3795904A (ca)
AR (1) AR199378A1 (ca)
BE (1) BE767246A (ca)
CA (1) CA948332A (ca)
CH (1) CH539310A (ca)
ES (1) ES197895Y (ca)
FR (1) FR2090086B1 (ca)
GB (1) GB1329475A (ca)
NO (1) NO129270B (ca)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3906474A (en) * 1973-05-07 1975-09-16 Fire Alert Company Combustion products alarm
FR2402256A1 (fr) * 1977-08-29 1979-03-30 Debard Robert Detecteur, notamment d'incendie
US4208655A (en) * 1978-02-21 1980-06-17 Westinghouse Electric Corp. Protective system for electrical apparatus
USRE30620E (en) * 1978-07-03 1981-05-19 P. R. Mallory & Co. Inc. High output smoke and heat detector alarm system utilizing a piezoelectric transducer and a voltage doubling means
ZA786519B (en) * 1978-11-20 1980-02-27 Anglo Amer Corp South Africa Detector
US4383253A (en) * 1979-01-29 1983-05-10 International Quartz Ltd. Ionization smoke detector
US4270123A (en) * 1979-02-26 1981-05-26 Universal Det, S.A.R.L. Detector for indicating a fire or detector malfunction
DE3004753C2 (de) * 1980-02-08 1983-12-22 Hartwig Dipl.-Ing. 2409 Scharbeutz Beyersdorf Brandmeldeeinrichtung
US5189399A (en) * 1989-02-18 1993-02-23 Hartwig Beyersdorf Method of operating an ionization smoke alarm and ionization smoke alarm
RU2182366C2 (ru) * 2000-03-29 2002-05-10 Институт физико-технических проблем Ионизационный пожарный извещатель

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2950387A (en) * 1957-08-16 1960-08-23 Bell & Howell Co Gas analysis
FR1185495A (fr) * 1957-10-24 1959-07-31 Dispositif de détection et de contrôle de variations de composition d'un gaz, utilisable notamment comme prédétecteur d'incendie
LU48167A1 (ca) * 1965-03-11 1966-09-12 Applic Electroniques Ets
FR1494089A (fr) * 1965-03-11 1967-09-08 Pour Applic Electroniques Ets Circuit de détection et de mesure de signaux, notamment de signaux dérivés de l'ionisation d'un milieu, particulièrement d'un milieu gazeux
CH446131A (de) * 1966-02-22 1967-10-31 Cerberus Ag Ionisationsfeuermelderanlage
CH497755A (de) * 1969-06-24 1970-10-15 Cerberus Ag Ionisationsfeuermelder

Also Published As

Publication number Publication date
CA948332A (en) 1974-05-28
FR2090086A1 (ca) 1972-01-14
GB1329475A (en) 1973-09-12
US3795904A (en) 1974-03-05
ES197895Y (es) 1975-10-01
BE767246A (fr) 1971-11-17
FR2090086B1 (ca) 1975-01-17
AR199378A1 (es) 1974-08-30
CH539310A (de) 1973-07-15
ES197895U (es) 1975-05-01

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