GB1595458A - Smoke detector - Google Patents

Smoke detector Download PDF

Info

Publication number
GB1595458A
GB1595458A GB45410/77A GB4541077A GB1595458A GB 1595458 A GB1595458 A GB 1595458A GB 45410/77 A GB45410/77 A GB 45410/77A GB 4541077 A GB4541077 A GB 4541077A GB 1595458 A GB1595458 A GB 1595458A
Authority
GB
United Kingdom
Prior art keywords
optical
transducer
smoke
source
light
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB45410/77A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1595458A publication Critical patent/GB1595458A/en
Expired legal-status Critical Current

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)
GB45410/77A 1976-11-04 1977-11-01 Smoke detector Expired GB1595458A (en)

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
GB1595458A true GB1595458A (en) 1981-08-12

Family

ID=24969328

Family Applications (1)

Application Number Title Priority Date Filing Date
GB45410/77A Expired GB1595458A (en) 1976-11-04 1977-11-01 Smoke detector

Country Status (9)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2170597A (en) * 1985-01-31 1986-08-06 Thorn Emi Protech Limited Smoke detector
GB2200507A (en) * 1987-01-28 1988-08-03 Famous Instr Ltd Optical detector for an auto-focus camera
GB2251067A (en) * 1990-12-17 1992-06-24 E I Company Limited Smoke detector

Families Citing this family (40)

* 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
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
JPS63239592A (ja) * 1987-03-27 1988-10-05 ホーチキ株式会社 光電式煙感知器
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 ( ) * 1974-04-17 1975-10-24

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2170597A (en) * 1985-01-31 1986-08-06 Thorn Emi Protech Limited Smoke detector
GB2200507A (en) * 1987-01-28 1988-08-03 Famous Instr Ltd Optical detector for an auto-focus camera
US4827300A (en) * 1987-01-28 1989-05-02 Famous Instrument Limited Optical detector for an auto-focus camera
GB2200507B (en) * 1987-01-28 1992-02-12 Famous Instr Ltd Optical detector for an auto-focus camera
GB2251067A (en) * 1990-12-17 1992-06-24 E I Company Limited Smoke detector
GB2251067B (en) * 1990-12-17 1994-03-30 E I Company Limited The Smoke alarm

Also Published As

Publication number Publication date
NL7712109A (nl) 1978-05-08
JPS5357885A (en) 1978-05-25
FR2370278A1 (fr) 1978-06-02
FR2370278B3 ( ) 1980-08-08
JPS5643501B2 ( ) 1981-10-13
US4121110A (en) 1978-10-17
IT1209442B (it) 1989-08-30
AU513352B2 (en) 1980-11-27
SE7712437L (sv) 1978-05-05
DE2749494A1 (de) 1978-05-11
AU3036477A (en) 1979-05-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee