AT297544B - Ionization chamber smoke detector - Google Patents

Ionization chamber smoke detector

Info

Publication number
AT297544B
AT297544B AT183670A AT183670A AT297544B AT 297544 B AT297544 B AT 297544B AT 183670 A AT183670 A AT 183670A AT 183670 A AT183670 A AT 183670A AT 297544 B AT297544 B AT 297544B
Authority
AT
Austria
Prior art keywords
smoke detector
ionization chamber
chamber smoke
ionization
detector
Prior art date
Application number
AT183670A
Other languages
German (de)
Original Assignee
Nittan Co 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 Nittan Co Ltd filed Critical Nittan Co Ltd
Application granted granted Critical
Publication of AT297544B publication Critical patent/AT297544B/en

Links

Classifications

    • 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

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)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Emergency Alarm Devices (AREA)
AT183670A 1969-04-04 1970-02-27 Ionization chamber smoke detector AT297544B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP44025730A JPS5147039B1 (en) 1969-04-04 1969-04-04

Publications (1)

Publication Number Publication Date
AT297544B true AT297544B (en) 1972-03-27

Family

ID=12173907

Family Applications (1)

Application Number Title Priority Date Filing Date
AT183670A AT297544B (en) 1969-04-04 1970-02-27 Ionization chamber smoke detector

Country Status (11)

Country Link
JP (1) JPS5147039B1 (en)
AT (1) AT297544B (en)
BE (1) BE732651A (en)
CH (1) CH498457A (en)
DE (1) DE2004584B2 (en)
ES (1) ES375686A1 (en)
FR (1) FR2042047A5 (en)
GB (1) GB1269911A (en)
IL (1) IL33654A (en)
NL (1) NL144410B (en)
SE (1) SE350634B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3904979A1 (en) * 1989-02-18 1990-08-23 Beyersdorf Hartwig METHOD FOR OPERATING AN IONIZATION SMOKE DETECTOR AND IONIZATION SMOKE DETECTOR
US5189399A (en) * 1989-02-18 1993-02-23 Hartwig Beyersdorf Method of operating an ionization smoke alarm and ionization smoke alarm
CN111951514A (en) * 2020-08-03 2020-11-17 深圳职业技术学院 Smog detection device based on image recognition

Also Published As

Publication number Publication date
GB1269911A (en) 1972-04-06
NL7001934A (en) 1970-10-06
CH498457A (en) 1970-10-31
JPS5147039B1 (en) 1976-12-13
FR2042047A5 (en) 1971-02-05
ES375686A1 (en) 1972-05-16
NL144410B (en) 1974-12-16
DE2004584B2 (en) 1971-12-23
BE732651A (en) 1969-10-16
IL33654A0 (en) 1970-03-22
IL33654A (en) 1973-08-29
DE2004584A1 (en) 1970-11-26
SE350634B (en) 1972-10-30

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee