BE864974A - IONIZATION OPERATED FIRE ALARM - Google Patents

IONIZATION OPERATED FIRE ALARM

Info

Publication number
BE864974A
BE864974A BE186000A BE186000A BE864974A BE 864974 A BE864974 A BE 864974A BE 186000 A BE186000 A BE 186000A BE 186000 A BE186000 A BE 186000A BE 864974 A BE864974 A BE 864974A
Authority
BE
Belgium
Prior art keywords
ionization
fire alarm
operated fire
operated
alarm
Prior art date
Application number
BE186000A
Other languages
French (fr)
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 BE864974A publication Critical patent/BE864974A/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)
BE186000A 1977-03-16 1978-03-16 IONIZATION OPERATED FIRE ALARM BE864974A (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
BE864974A true BE864974A (en) 1978-09-18

Family

ID=6003797

Family Applications (1)

Application Number Title Priority Date Filing Date
BE186000A BE864974A (en) 1977-03-16 1978-03-16 IONIZATION OPERATED 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
NO780876L (en) 1978-09-19
DE2711457A1 (en) 1978-09-21
FR2384307B1 (en) 1982-07-16
CH625071A5 (en) 1981-08-31
SE438385B (en) 1985-04-15
NO141008C (en) 1979-12-19
IT1094274B (en) 1985-07-26
SE7802995L (en) 1978-09-17
DK116878A (en) 1978-09-17
IT7821086A0 (en) 1978-03-10
DE2711457C2 (en) 1985-06-27
LU79226A1 (en) 1978-11-27
NO141008B (en) 1979-09-10
DK142515C (en) 1981-08-03
FR2384307A1 (en) 1978-10-13
DK142515B (en) 1980-11-10
NL7802821A (en) 1978-09-19
ATA177678A (en) 1980-11-15
AT363014B (en) 1981-07-10

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: SIEMENS A.G.

Effective date: 19870331