BE707959A - - Google Patents

Info

Publication number
BE707959A
BE707959A BE707959DA BE707959A BE 707959 A BE707959 A BE 707959A BE 707959D A BE707959D A BE 707959DA BE 707959 A BE707959 A BE 707959A
Authority
BE
Belgium
Application number
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 filed Critical
Publication of BE707959A publication Critical patent/BE707959A/xx

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)
BE707959D 1966-12-29 1967-12-14 BE707959A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1875166A CH468683A (en) 1966-12-29 1966-12-29 Fire alarms with an electrical feedback arrangement

Publications (1)

Publication Number Publication Date
BE707959A true BE707959A (en) 1968-04-16

Family

ID=4435069

Family Applications (1)

Application Number Title Priority Date Filing Date
BE707959D BE707959A (en) 1966-12-29 1967-12-14

Country Status (7)

Country Link
US (1) US3559196A (en)
AT (1) AT278597B (en)
BE (1) BE707959A (en)
CH (1) CH468683A (en)
DK (1) DK122548B (en)
GB (1) GB1200120A (en)
SE (1) SE330659B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3946374A (en) * 1970-08-13 1976-03-23 Sci Systems, Inc. Rate-of-change combustion and contamination detection device
JPS4940290Y1 (en) * 1970-11-19 1974-11-05
US3866195A (en) * 1973-05-07 1975-02-11 Fire Alert Company Combustion product detector and method of calibrating
DE2327497C3 (en) * 1973-05-30 1981-12-24 Benno 5430 Wettingen Aargau Perren Detector for changes in resistance with a downstream alarm device
US4109240A (en) * 1973-11-26 1978-08-22 Cerberus Ag. Ionization-type fire sensing system
DE2546970C3 (en) * 1975-10-20 1981-09-10 Preussag Ag Feuerschutz, 2060 Bad Oldesloe Ionization smoke detector
DE2707409C2 (en) * 1977-02-21 1985-02-21 Hartwig Dipl.-Ing. 2409 Scharbeutz Beyersdorf Ionization fire detector
DE2726186C3 (en) * 1977-06-10 1981-05-14 Pan Data Ab, Stockholm Electrical monitoring device
WO2008034080A2 (en) * 2006-09-15 2008-03-20 Nano-Proprietary, Inc. Smoke detector
US9564045B2 (en) * 2014-04-14 2017-02-07 Stephen D. Ainsworth Alarm system testing device

Also Published As

Publication number Publication date
SE330659B (en) 1970-11-23
CH468683A (en) 1969-02-15
US3559196A (en) 1971-01-26
DK122548B (en) 1972-03-13
GB1200120A (en) 1970-07-29
DE1566687B1 (en) 1971-04-01
AT278597B (en) 1970-02-10

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: CERBERUS A.G.

Effective date: 19841214