AT301398B - Ionisations-Rauchmelder - Google Patents

Ionisations-Rauchmelder

Info

Publication number
AT301398B
AT301398B AT537870A AT537870A AT301398B AT 301398 B AT301398 B AT 301398B AT 537870 A AT537870 A AT 537870A AT 537870 A AT537870 A AT 537870A AT 301398 B AT301398 B AT 301398B
Authority
AT
Austria
Prior art keywords
smoke detector
ionization smoke
ionization
detector
smoke
Prior art date
Application number
AT537870A
Other languages
English (en)
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 AT301398B publication Critical patent/AT301398B/de

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)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
AT537870A 1969-06-16 1970-06-15 Ionisations-Rauchmelder AT301398B (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4688769 1969-06-16
JP4688669 1969-06-16

Publications (1)

Publication Number Publication Date
AT301398B true AT301398B (de) 1972-09-11

Family

ID=26387034

Family Applications (1)

Application Number Title Priority Date Filing Date
AT537870A AT301398B (de) 1969-06-16 1970-06-15 Ionisations-Rauchmelder

Country Status (9)

Country Link
US (1) US3718919A (de)
AT (1) AT301398B (de)
DE (1) DE2029752B2 (de)
ES (1) ES378081A1 (de)
FR (1) FR2054574B1 (de)
GB (1) GB1254839A (de)
IL (1) IL34107A (de)
NL (1) NL150595B (de)
SE (1) SE348576B (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2130445C3 (de) * 1971-06-19 1981-06-04 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Schaltungsanordnung für zur Meldung und Signalisierung dienende Linienstromkreise
US4020415A (en) * 1974-12-30 1977-04-26 Unitec, Inc. Combustion product indicator
CH586941A5 (de) * 1975-07-25 1977-04-15 Cerberus Ag
USRE30117E (en) * 1975-07-25 1979-10-16 Cerberus Ag Ionization-type fire or smoke sensing system
US4083037A (en) * 1975-12-08 1978-04-04 Patent Development & Management Company Detection circuit

Also Published As

Publication number Publication date
NL7004720A (de) 1970-12-18
IL34107A0 (en) 1970-05-21
DE2029752B2 (de) 1971-12-02
NL150595B (nl) 1976-08-16
GB1254839A (en) 1971-11-24
FR2054574A1 (de) 1971-04-23
DE2029752A1 (de) 1971-01-07
US3718919A (en) 1973-02-27
FR2054574B1 (de) 1973-03-16
ES378081A1 (es) 1972-12-01
IL34107A (en) 1972-09-28
SE348576B (de) 1972-09-04

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Legal Events

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