BE788001A - Circuit sensible a la fumee, avec batterie de secours - Google Patents

Circuit sensible a la fumee, avec batterie de secours

Info

Publication number
BE788001A
BE788001A BE788001DA BE788001A BE 788001 A BE788001 A BE 788001A BE 788001D A BE788001D A BE 788001DA BE 788001 A BE788001 A BE 788001A
Authority
BE
Belgium
Prior art keywords
backup battery
sensitive circuit
smoke sensitive
smoke
circuit
Prior art date
Application number
Other languages
English (en)
Inventor
L A Caillouet
Original Assignee
T J Connelly Construction Cy I
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.)
Publication date
Publication of BE788001A publication Critical patent/BE788001A/fr

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
    • G08B17/117—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means by using a detection device for specific gases, e.g. combustion products, produced by the fire

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Emergency Alarm Devices (AREA)
BE788001D 1971-11-01 Circuit sensible a la fumee, avec batterie de secours BE788001A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19467971A 1971-11-01 1971-11-01

Publications (1)

Publication Number Publication Date
BE788001A true BE788001A (fr) 1973-02-26

Family

ID=22718503

Family Applications (1)

Application Number Title Priority Date Filing Date
BE788001D BE788001A (fr) 1971-11-01 Circuit sensible a la fumee, avec batterie de secours

Country Status (2)

Country Link
US (1) US3750123A (fr)
BE (1) BE788001A (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3887908A (en) * 1973-05-07 1975-06-03 Environmental Metrology Corp Toxic gas indicator
US3860919A (en) * 1973-12-26 1975-01-14 Funck Donald E Smoke and gas detection and alarm apparatus
US3879717A (en) * 1974-06-19 1975-04-22 K F Ind Inc Portable methane monitor and alarm system
US4007456A (en) * 1975-12-01 1977-02-08 Craftor Inc. Gas detecting and warning system
US4088986A (en) * 1976-10-01 1978-05-09 Boucher Charles E Smoke, fire and gas alarm with remote sensing, back-up emergency power, and system self monitoring
JPS544608U (fr) * 1977-06-10 1979-01-12
US4155081A (en) * 1977-10-25 1979-05-15 Honeywell Inc. Rechargeable battery backup power source for an ionization smoke detector device
IT1167878B (it) * 1981-05-05 1987-05-20 Franco Maria Conte Apparecchio rivelatore di gas infiammabile
JPS6057231U (ja) * 1983-09-27 1985-04-22 オムロン株式会社 電源オフディレ−タイマ
US5517182A (en) * 1994-09-20 1996-05-14 Figaro Engineering Inc. Method for CO detection and its apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2895125A (en) * 1954-12-09 1959-07-14 Patrick F Henry Electrical alarm system
US2771598A (en) * 1955-06-16 1956-11-20 Simplex Ind Products Inc Alarm system
US3479257A (en) * 1966-11-25 1969-11-18 Gen Electric Methods and apparatus for measuring the content of hydrogen or reducing gases in an atmosphere
US3609732A (en) * 1969-05-28 1971-09-28 New Cosmos Electric Co Gas responsive switching device

Also Published As

Publication number Publication date
US3750123A (en) 1973-07-31

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