CH547531A - FIRE DETECTION SYSTEM. - Google Patents

FIRE DETECTION SYSTEM.

Info

Publication number
CH547531A
CH547531A CH1065472A CH547531DA CH547531A CH 547531 A CH547531 A CH 547531A CH 1065472 A CH1065472 A CH 1065472A CH 547531D A CH547531D A CH 547531DA CH 547531 A CH547531 A CH 547531A
Authority
CH
Switzerland
Prior art keywords
detection system
fire detection
fire
detection
Prior art date
Application number
CH1065472A
Other languages
German (de)
Original Assignee
Cerberus 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 Cerberus Ag filed Critical Cerberus Ag
Publication of CH547531A publication Critical patent/CH547531A/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 Alarms (AREA)
  • Alarm Systems (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Fire-Detection Mechanisms (AREA)
CH1065472A 1972-07-17 1972-07-17 FIRE DETECTION SYSTEM. CH547531A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1065472 1972-07-17

Publications (1)

Publication Number Publication Date
CH547531A true CH547531A (en) 1974-03-29

Family

ID=4365437

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1065472A CH547531A (en) 1972-07-17 1972-07-17 FIRE DETECTION SYSTEM.

Country Status (13)

Country Link
US (1) US3821734A (en)
JP (1) JPS5617704B2 (en)
AU (1) AU474604B2 (en)
CA (1) CA988224A (en)
CH (1) CH547531A (en)
DE (1) DE2328881C3 (en)
FI (1) FI56908C (en)
FR (1) FR2193225B1 (en)
GB (1) GB1401146A (en)
HK (1) HK55880A (en)
NO (1) NO137619C (en)
SE (1) SE390076B (en)
ZA (1) ZA734855B (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2707409C2 (en) * 1977-02-21 1985-02-21 Hartwig Dipl.-Ing. 2409 Scharbeutz Beyersdorf Ionization fire detector
US4191946A (en) * 1977-10-20 1980-03-04 Gonzalez Raymond J Warning apparatus with a line integrity supervisory circuit
JPS5831038B2 (en) * 1977-12-26 1983-07-02 能美防災工業株式会社 fire detector
DE2811891A1 (en) * 1978-03-18 1979-09-27 Merk Gmbh Telefonbau Fried Monitoring circuit for signalling lines - uses line which is fed with low or high current, insufficient or sufficient for blinking signals, to respond to ionisation detectors
US4207558A (en) * 1978-04-03 1980-06-10 Pittway Corporation Interconnection circuit for a plurality of alarm units
USRE30620E (en) * 1978-07-03 1981-05-19 P. R. Mallory & Co. Inc. High output smoke and heat detector alarm system utilizing a piezoelectric transducer and a voltage doubling means
DE2934383A1 (en) * 1978-08-26 1980-03-06 Hochiki Co FIRE MONITORING DEVICE
US4414539A (en) * 1978-12-22 1983-11-08 The Boeing Company Built-in passive fault detection circuitry for an aircraft's electrical/electronic systems
US4287515A (en) * 1979-04-27 1981-09-01 Baker Industries, Inc. Fire detection system with multiple output signals
US4573040A (en) * 1979-11-30 1986-02-25 Drexelbrook Engineering Company Fail-safe instrument system
US5015958A (en) 1983-06-30 1991-05-14 Raychem Corporation Elongate sensors comprising conductive polymers, and methods and apparatus using such sensors
US5382909A (en) 1983-06-30 1995-01-17 Raychem Corporation Method for detecting and obtaining information about changes in variables
NZ208683A (en) * 1983-06-30 1988-04-29 Raychem Corp Resistive sensor system for locating events
JPS6174187U (en) * 1984-10-16 1986-05-20
DE3687819T2 (en) 1985-06-12 1993-06-09 Raychem Corp HYDROCARBON SENSOR.
US5898369A (en) * 1996-01-18 1999-04-27 Godwin; Paul K. Communicating hazardous condition detector
AT501215B1 (en) * 2004-12-20 2008-05-15 Friedl Helmut Dipl Ing MONITORING DEVICE
DE102005038602B4 (en) * 2005-08-16 2019-05-09 Robert Bosch Gmbh safety device
JP6175235B2 (en) * 2012-12-25 2017-08-02 能美防災株式会社 Fire alarm equipment and fire detector and termination device used therefor
RU2717355C1 (en) * 2019-07-24 2020-03-23 Общество С Ограниченной Ответственностью "Форносовское Научно-Производственное Предприятие "Гефест" Switching device of actuating elements of fire automatics
CN116087726B (en) * 2023-04-11 2023-06-27 国网四川省电力公司电力科学研究院 Device and method for measuring critical breakdown distance of flame channel

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3550120A (en) * 1968-12-09 1970-12-22 Honeywell Inc Control apparatus

Also Published As

Publication number Publication date
DE2328881A1 (en) 1974-01-31
AU5798773A (en) 1975-01-16
FI56908C (en) 1980-04-10
ZA734855B (en) 1974-07-31
FI56908B (en) 1979-12-31
JPS4970596A (en) 1974-07-08
DE2328881C3 (en) 1982-03-18
SE390076B (en) 1976-11-29
JPS5617704B2 (en) 1981-04-23
FR2193225B1 (en) 1979-01-26
HK55880A (en) 1980-10-10
FR2193225A1 (en) 1974-02-15
CA988224A (en) 1976-04-27
GB1401146A (en) 1975-07-16
AU474604B2 (en) 1976-07-29
US3821734A (en) 1974-06-28
NO137619C (en) 1978-03-29
DE2328881B2 (en) 1981-02-05
NO137619B (en) 1977-12-12

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Legal Events

Date Code Title Description
PL Patent ceased