IT1209442B - Rivelatore di fumo polarizzato otticamente. - Google Patents

Rivelatore di fumo polarizzato otticamente.

Info

Publication number
IT1209442B
IT1209442B IT7729335A IT2933577A IT1209442B IT 1209442 B IT1209442 B IT 1209442B IT 7729335 A IT7729335 A IT 7729335A IT 2933577 A IT2933577 A IT 2933577A IT 1209442 B IT1209442 B IT 1209442B
Authority
IT
Italy
Prior art keywords
smoke detector
optically polarized
polarized
optically
smoke
Prior art date
Application number
IT7729335A
Other languages
English (en)
Original Assignee
Solomon Elias E
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 Solomon Elias E filed Critical Solomon Elias E
Application granted granted Critical
Publication of IT1209442B publication Critical patent/IT1209442B/it

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
    • G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
    • G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke
    • 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
    • G08B17/113—Constructional details

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)
  • Investigating Or Analysing Materials By Optical Means (AREA)
IT7729335A 1976-11-04 1977-11-03 Rivelatore di fumo polarizzato otticamente. IT1209442B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/738,750 US4121110A (en) 1976-11-04 1976-11-04 Optically biased smoke detector

Publications (1)

Publication Number Publication Date
IT1209442B true IT1209442B (it) 1989-08-30

Family

ID=24969328

Family Applications (1)

Application Number Title Priority Date Filing Date
IT7729335A IT1209442B (it) 1976-11-04 1977-11-03 Rivelatore di fumo polarizzato otticamente.

Country Status (9)

Country Link
US (1) US4121110A (it)
JP (1) JPS5357885A (it)
AU (1) AU513352B2 (it)
DE (1) DE2749494A1 (it)
FR (1) FR2370278A1 (it)
GB (1) GB1595458A (it)
IT (1) IT1209442B (it)
NL (1) NL7712109A (it)
SE (1) SE7712437L (it)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4300133A (en) * 1977-03-28 1981-11-10 Solomon Elias E Smoke detector
DE3018021A1 (de) * 1979-05-16 1980-11-27 Honeywell Inc Optischer rauchdetektor
US4306230A (en) * 1979-12-10 1981-12-15 Honeywell Inc. Self-checking photoelectric smoke detector
EP0076338A1 (en) * 1981-10-05 1983-04-13 Gamewell Corporation Broad-spectrum particle detector
GB8502506D0 (en) * 1985-01-31 1985-03-06 Emi Ltd Smoke detector
GB8529436D0 (en) * 1985-11-29 1986-01-08 Gent Ltd Fire detector
EP0255117A1 (de) * 1986-07-31 1988-02-03 Siemens Aktiengesellschaft Rauchmelder zur Bradfrüherkennung
EP0257325A1 (de) * 1986-07-31 1988-03-02 Siemens Aktiengesellschaft Rauchmelder zur Brandfrüherkennung
US4906978A (en) * 1986-12-24 1990-03-06 Cerberus Ag Optical smoke detector
JPS63163698A (ja) * 1986-12-26 1988-07-07 ホーチキ株式会社 散乱光式煙感知器
GB2200507B (en) * 1987-01-28 1992-02-12 Famous Instr Ltd Optical detector for an auto-focus camera
JPS63239592A (ja) * 1987-03-27 1988-10-05 ホーチキ株式会社 光電式煙感知器
IE904564A1 (en) * 1990-12-17 1992-06-17 E I Company Ltd Smoke alarm
DE4207807C2 (de) * 1992-03-12 1994-03-31 Deutsche Aerospace Airbus Vorrichtung zur Rauchmeldung
US5394168A (en) * 1993-01-06 1995-02-28 Smith Engineering Dual-mode hand-held game controller
US5581241A (en) * 1994-08-12 1996-12-03 Voice Products Inc. Ultra-sensitive smoke detector
DE19955362B4 (de) * 1999-11-17 2004-07-08 Wagner Alarm- Und Sicherungssysteme Gmbh Streulichtdetektor
US6876305B2 (en) * 1999-12-08 2005-04-05 Gentex Corporation Compact particle sensor
AU2004290246B2 (en) * 2003-11-17 2010-06-10 Hochiki Corporation Smoke sensor using scattering light
DE102004001699A1 (de) * 2004-01-13 2005-08-04 Robert Bosch Gmbh Brandmelder
JP4866348B2 (ja) * 2005-03-31 2012-02-01 日本フェンオール株式会社 光電式煙感知器
US7733486B2 (en) * 2007-06-27 2010-06-08 Venturedyne, Ltd. Environmental sensor including a baffle
JP5187830B2 (ja) * 2008-03-03 2013-04-24 日本フェンオール株式会社 煙感知器
JP5490367B2 (ja) * 2008-03-03 2014-05-14 日本フェンオール株式会社 煙感知器
JP5490366B2 (ja) * 2008-03-03 2014-05-14 日本フェンオール株式会社 煙感知器
JP5442207B2 (ja) * 2008-03-03 2014-03-12 日本フェンオール株式会社 点灯装置及び煙感知器
JP5426929B2 (ja) * 2009-05-26 2014-02-26 パナソニック株式会社 光電式煙検知器
DE102011106362A1 (de) * 2010-06-09 2011-12-29 Dietmar Friedrich Brück Rauchmeldeeinrichtung
US8994540B2 (en) 2012-09-21 2015-03-31 Google Inc. Cover plate for a hazard detector having improved air flow and other characteristics
US9046414B2 (en) 2012-09-21 2015-06-02 Google Inc. Selectable lens button for a hazard detector and method therefor
US9007222B2 (en) 2012-09-21 2015-04-14 Google Inc. Detector unit and sensing chamber therefor
US9520252B2 (en) 2012-09-21 2016-12-13 Google Inc. Adaptable hazard detector mounting plate
US9600989B2 (en) 2013-09-12 2017-03-21 Google Inc. Detector unit with multiple integrated sensing systems and visually pleasing housing
GB2531495B (en) * 2014-06-16 2017-04-12 Apollo Fire Detectors Ltd Smoke detector
US9396633B1 (en) 2015-06-14 2016-07-19 Google Inc. Systems, methods, and devices for managing coexistence of multiple transceiver devices by optimizing component layout
US9679454B2 (en) 2015-02-06 2017-06-13 Google Inc. Systems, methods, and devices for managing coexistence of multiple transceiver devices using control signals
US9794522B2 (en) 2015-02-06 2017-10-17 Google Inc. Systems, methods, and devices for managing coexistence of multiple transceiver devices by optimizing component layout
WO2016186884A1 (en) 2015-05-15 2016-11-24 Google Inc. Smoke detector chamber architecture and related methods
US9543998B2 (en) 2015-06-14 2017-01-10 Google Inc. Systems, methods, and devices for managing coexistence of multiple transceiver devices using bypass circuitry
US10078948B2 (en) * 2016-01-26 2018-09-18 Honeywell International Inc. Smoke detector with a double optical chamber
US10613213B2 (en) 2016-05-13 2020-04-07 Google Llc Systems, methods, and devices for utilizing radar with smart devices
US10687184B2 (en) 2016-05-13 2020-06-16 Google Llc Systems, methods, and devices for utilizing radar-based touch interfaces
WO2019234978A1 (ja) * 2018-06-08 2019-12-12 ホーチキ株式会社 感知器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3916209A (en) * 1973-07-24 1975-10-28 Electro Signal Lab Vaned baffle for optical smoke detector
GB1446646A (en) * 1973-09-20 1976-08-18 Chubb Fire Security Ltd Smoke detector
JPS50134172A (it) * 1974-04-17 1975-10-24

Also Published As

Publication number Publication date
NL7712109A (nl) 1978-05-08
GB1595458A (en) 1981-08-12
JPS5357885A (en) 1978-05-25
FR2370278A1 (fr) 1978-06-02
FR2370278B3 (it) 1980-08-08
JPS5643501B2 (it) 1981-10-13
US4121110A (en) 1978-10-17
AU513352B2 (en) 1980-11-27
SE7712437L (sv) 1978-05-05
DE2749494A1 (de) 1978-05-11
AU3036477A (en) 1979-05-10

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