BE859256A - Detecteur de fumee - Google Patents

Detecteur de fumee

Info

Publication number
BE859256A
BE859256A BE181354A BE181354A BE859256A BE 859256 A BE859256 A BE 859256A BE 181354 A BE181354 A BE 181354A BE 181354 A BE181354 A BE 181354A BE 859256 A BE859256 A BE 859256A
Authority
BE
Belgium
Prior art keywords
smoke detector
smoke
detector
Prior art date
Application number
BE181354A
Other languages
English (en)
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of BE859256A publication Critical patent/BE859256A/fr

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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S331/00—Oscillators
    • Y10S331/03—Logic gate active element oscillator

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)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
BE181354A 1976-10-01 1977-09-30 Detecteur de fumee BE859256A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/728,524 US4104619A (en) 1976-10-01 1976-10-01 Smoke detector

Publications (1)

Publication Number Publication Date
BE859256A true BE859256A (fr) 1978-01-16

Family

ID=24927201

Family Applications (1)

Application Number Title Priority Date Filing Date
BE181354A BE859256A (fr) 1976-10-01 1977-09-30 Detecteur de fumee

Country Status (8)

Country Link
US (1) US4104619A (fr)
JP (1) JPS5363093A (fr)
AU (1) AU2864477A (fr)
BE (1) BE859256A (fr)
CA (1) CA1079417A (fr)
DE (1) DE2743761A1 (fr)
FR (1) FR2366563A1 (fr)
NL (1) NL7710324A (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4327361A (en) * 1980-11-06 1982-04-27 The United States Of America As Represented By The Secretary Of The Army Gas sensor
US4816748A (en) * 1986-08-28 1989-03-28 Nippon Mining Co., Ltd. Electronic thermohygrometer with square-wave pulse signal generator
DE69029153T2 (de) * 1989-01-18 1997-06-19 Nippon Denso Co Vorrichtung zur magnetischen Detektion und Vorrichtung zur Detektion einer physikalischen Grösse, die sie verwendet
US5686835A (en) * 1989-01-18 1997-11-11 Nippondenso Co., Ltd Physical quantity detection device for converting a physical quantity into a corresponding time interval
JP2868266B2 (ja) * 1990-01-25 1999-03-10 株式会社日本自動車部品総合研究所 信号位相差検出回路及び信号位相差検出方法
NO174606C (no) * 1991-06-17 1994-06-01 Bjoern Rennemo Framgangsmåte og anordning for måling av röykkonsentrasjon
JP3091413B2 (ja) * 1996-06-11 2000-09-25 科学技術振興事業団 磁気センサ
US6876305B2 (en) 1999-12-08 2005-04-05 Gentex Corporation Compact particle sensor
US6225910B1 (en) * 1999-12-08 2001-05-01 Gentex Corporation Smoke detector
US6717413B1 (en) * 2000-04-21 2004-04-06 Georgia Tech Research Corporation Contact potential difference ionization detector
US7616126B2 (en) * 2006-07-18 2009-11-10 Gentex Corporation Optical particle detectors
US8415638B2 (en) * 2010-08-06 2013-04-09 Thermo Fisher Scientific Inc. Method for detecting high-energy radiation using low voltage optimized ion chamber

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3516083A (en) * 1965-12-02 1970-06-02 Denske Securitas As Electric alarm system,preferably for a fire alarm
US3798625A (en) * 1970-08-13 1974-03-19 Sci Systems Inc Rate-of-change combustion and combination detection apparatus
US3728703A (en) * 1970-10-12 1973-04-17 Edward Co Inc Fire detector stabilizer circuit
US3875527A (en) * 1973-07-11 1975-04-01 Hernando Javier Garcia Environmental parameter controlled oscillator system
US4023152A (en) * 1973-10-01 1977-05-10 Matsushita Electric Works, Ltd. Ionization type smoke sensing device
CH556072A (de) * 1973-11-26 1974-11-15 Cerberus Ag Ionisationsfeuermelder.

Also Published As

Publication number Publication date
US4104619A (en) 1978-08-01
NL7710324A (nl) 1978-04-04
DE2743761A1 (de) 1978-04-06
AU2864477A (en) 1979-03-15
CA1079417A (fr) 1980-06-10
JPS5363093A (en) 1978-06-06
FR2366563A1 (fr) 1978-04-28

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