NL7802821A - IONIZATION FIRE ALARM. - Google Patents

IONIZATION FIRE ALARM.

Info

Publication number
NL7802821A
NL7802821A NL7802821A NL7802821A NL7802821A NL 7802821 A NL7802821 A NL 7802821A NL 7802821 A NL7802821 A NL 7802821A NL 7802821 A NL7802821 A NL 7802821A NL 7802821 A NL7802821 A NL 7802821A
Authority
NL
Netherlands
Prior art keywords
fire alarm
ionization fire
ionization
alarm
fire
Prior art date
Application number
NL7802821A
Other languages
Dutch (nl)
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of NL7802821A publication Critical patent/NL7802821A/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)
  • Fire Alarms (AREA)
NL7802821A 1977-03-16 1978-03-15 IONIZATION FIRE ALARM. NL7802821A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2711457A DE2711457C2 (en) 1977-03-16 1977-03-16 Ionization fire detector

Publications (1)

Publication Number Publication Date
NL7802821A true NL7802821A (en) 1978-09-19

Family

ID=6003797

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7802821A NL7802821A (en) 1977-03-16 1978-03-15 IONIZATION FIRE ALARM.

Country Status (11)

Country Link
AT (1) AT363014B (en)
BE (1) BE864974A (en)
CH (1) CH625071A5 (en)
DE (1) DE2711457C2 (en)
DK (1) DK142515C (en)
FR (1) FR2384307A1 (en)
IT (1) IT1094274B (en)
LU (1) LU79226A1 (en)
NL (1) NL7802821A (en)
NO (1) NO141008C (en)
SE (1) SE438385B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA786519B (en) * 1978-11-20 1980-02-27 Anglo Amer Corp South Africa Detector

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1490273A (en) * 1966-03-30 1967-07-28 Nittan Co Ltd Automatic fire alarm device using an ion device
GB1280304A (en) * 1968-09-26 1972-07-05 Hochiki Co A smoke sensing detector for smoke sensing apparatus
JPS529998B1 (en) * 1969-04-25 1977-03-19
ZA734995B (en) * 1973-07-23 1974-10-30 Anglo Amer Corp South Africa Improvemente in or relating to fire detectors
ZA745453B (en) * 1974-08-26 1976-04-28 Anglo Amer Corp South Africa Improvements in or relating to fire detectors

Also Published As

Publication number Publication date
DE2711457A1 (en) 1978-09-21
DE2711457C2 (en) 1985-06-27
FR2384307B1 (en) 1982-07-16
AT363014B (en) 1981-07-10
DK142515C (en) 1981-08-03
NO780876L (en) 1978-09-19
BE864974A (en) 1978-09-18
FR2384307A1 (en) 1978-10-13
DK142515B (en) 1980-11-10
IT1094274B (en) 1985-07-26
DK116878A (en) 1978-09-17
CH625071A5 (en) 1981-08-31
SE438385B (en) 1985-04-15
LU79226A1 (en) 1978-11-27
NO141008B (en) 1979-09-10
SE7802995L (en) 1978-09-17
ATA177678A (en) 1980-11-15
IT7821086A0 (en) 1978-03-10
NO141008C (en) 1979-12-19

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
BV The patent application has lapsed