CH625071A5 - Ionisation fire detector - Google Patents

Ionisation fire detector Download PDF

Info

Publication number
CH625071A5
CH625071A5 CH1514277A CH1514277A CH625071A5 CH 625071 A5 CH625071 A5 CH 625071A5 CH 1514277 A CH1514277 A CH 1514277A CH 1514277 A CH1514277 A CH 1514277A CH 625071 A5 CH625071 A5 CH 625071A5
Authority
CH
Switzerland
Prior art keywords
measuring
chamber
resistance
electrode
comparison
Prior art date
Application number
CH1514277A
Other languages
German (de)
English (en)
Inventor
Thilo Dr Peer
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 CH625071A5 publication Critical patent/CH625071A5/de

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)
  • Fire Alarms (AREA)
CH1514277A 1977-03-16 1977-12-09 Ionisation fire detector CH625071A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2711457A DE2711457C2 (de) 1977-03-16 1977-03-16 Ionisationsbrandmelder

Publications (1)

Publication Number Publication Date
CH625071A5 true CH625071A5 (en) 1981-08-31

Family

ID=6003797

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1514277A CH625071A5 (en) 1977-03-16 1977-12-09 Ionisation fire detector

Country Status (11)

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

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 (fr) * 1966-03-30 1967-07-28 Nittan Co Ltd Dispositif d'alarme automatique d'incendie utilisant un dispositif à ions
GB1280304A (en) * 1968-09-26 1972-07-05 Hochiki Co A smoke sensing detector for smoke sensing apparatus
JPS529998B1 (da) * 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
SE7802995L (sv) 1978-09-17
AT363014B (de) 1981-07-10
BE864974A (fr) 1978-09-18
DK142515B (da) 1980-11-10
FR2384307A1 (fr) 1978-10-13
DE2711457A1 (de) 1978-09-21
DE2711457C2 (de) 1985-06-27
NO141008B (no) 1979-09-10
NL7802821A (nl) 1978-09-19
LU79226A1 (de) 1978-11-27
NO141008C (no) 1979-12-19
IT7821086A0 (it) 1978-03-10
DK142515C (da) 1981-08-03
ATA177678A (de) 1980-11-15
SE438385B (sv) 1985-04-15
IT1094274B (it) 1985-07-26
DK116878A (da) 1978-09-17
FR2384307B1 (da) 1982-07-16
NO780876L (no) 1978-09-19

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Legal Events

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PL Patent ceased
PL Patent ceased