GB8913478D0 - Smoke detector devices and detector circuit - Google Patents

Smoke detector devices and detector circuit

Info

Publication number
GB8913478D0
GB8913478D0 GB898913478A GB8913478A GB8913478D0 GB 8913478 D0 GB8913478 D0 GB 8913478D0 GB 898913478 A GB898913478 A GB 898913478A GB 8913478 A GB8913478 A GB 8913478A GB 8913478 D0 GB8913478 D0 GB 8913478D0
Authority
GB
United Kingdom
Prior art keywords
detector
devices
smoke
circuit
detector circuit
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.)
Withdrawn
Application number
GB898913478A
Other versions
GB2221074A (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 GB8913478D0 publication Critical patent/GB8913478D0/en
Publication of GB2221074A publication Critical patent/GB2221074A/en
Withdrawn legal-status Critical Current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
GB8913478A 1988-06-10 1989-06-12 Smoke detector devices and detector circuit Withdrawn GB2221074A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888813811A GB8813811D0 (en) 1988-06-10 1988-06-10 Smoke detector

Publications (2)

Publication Number Publication Date
GB8913478D0 true GB8913478D0 (en) 1989-08-02
GB2221074A GB2221074A (en) 1990-01-24

Family

ID=10638441

Family Applications (2)

Application Number Title Priority Date Filing Date
GB888813811A Pending GB8813811D0 (en) 1988-06-10 1988-06-10 Smoke detector
GB8913478A Withdrawn GB2221074A (en) 1988-06-10 1989-06-12 Smoke detector devices and detector circuit

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB888813811A Pending GB8813811D0 (en) 1988-06-10 1988-06-10 Smoke detector

Country Status (2)

Country Link
EP (1) EP0346152A3 (en)
GB (2) GB8813811D0 (en)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9204416D0 (en) 1992-02-29 1992-04-15 Twin City Instrumentation & Eq An alarm
GB9211770D0 (en) * 1992-06-03 1992-07-15 Oliver Ian P Lighting apparatus
GB2290900A (en) * 1994-06-20 1996-01-10 Timothy James Shepherd Lighting smoke alarm
IES70922B2 (en) * 1996-04-15 1997-01-15 E I Tech Ltd A mains powered alarm sensor unit having a primary battery backup
GB2322727A (en) 1997-02-27 1998-09-02 Fulleon Ltd Sounder device
WO1999019666A1 (en) * 1997-10-15 1999-04-22 Hilary Elizabeth Craig Lamp fitting and monitoring device
SE512409C2 (en) * 1997-12-11 2000-03-13 Rickard Groenstedt Suspension for fire alarms
GB2337841A (en) * 1998-05-28 1999-12-01 Mark Henry Herrington Combined light bulb fitting and smoke alarm
EP1046147B1 (en) * 1998-10-07 2004-03-31 Runner & Sprue Limited Alarm
US8144671B2 (en) 2005-07-01 2012-03-27 Twitchell Jr Robert W Communicating via nondeterministic and deterministic network routing
GB2371666A (en) * 2001-01-25 2002-07-31 James Turner Fire alarm and light fitting
DE60204547T2 (en) * 2001-03-10 2006-03-16 Acbond Ltd., Moss Lane IMPROVEMENTS RELATED TO SMOKE DETECTORS
US7199701B2 (en) * 2003-11-19 2007-04-03 Lawrence Kates Repeater unit
US20050164630A1 (en) 2003-11-19 2005-07-28 Lawrence Kates Repeater unit with flourescent ballast
US7412842B2 (en) 2004-04-27 2008-08-19 Emerson Climate Technologies, Inc. Compressor diagnostic and protection system
US7102504B2 (en) 2004-05-27 2006-09-05 Lawrence Kates Wireless sensor monitoring unit
US7042352B2 (en) 2004-05-27 2006-05-09 Lawrence Kates Wireless repeater for sensor system
US7142107B2 (en) 2004-05-27 2006-11-28 Lawrence Kates Wireless sensor unit
US7102505B2 (en) 2004-05-27 2006-09-05 Lawrence Kates Wireless sensor system
US7218237B2 (en) 2004-05-27 2007-05-15 Lawrence Kates Method and apparatus for detecting water leaks
US7623028B2 (en) 2004-05-27 2009-11-24 Lawrence Kates System and method for high-sensitivity sensor
US7424343B2 (en) 2004-08-11 2008-09-09 Lawrence Kates Method and apparatus for load reduction in an electric power system
US7275377B2 (en) 2004-08-11 2007-10-02 Lawrence Kates Method and apparatus for monitoring refrigerant-cycle systems
US7228726B2 (en) 2004-09-23 2007-06-12 Lawrence Kates System and method for utility metering and leak detection
US7142123B1 (en) 2005-09-23 2006-11-28 Lawrence Kates Method and apparatus for detecting moisture in building materials
US8590325B2 (en) 2006-07-19 2013-11-26 Emerson Climate Technologies, Inc. Protection and diagnostic module for a refrigeration system
US20080216494A1 (en) 2006-09-07 2008-09-11 Pham Hung M Compressor data module
US20090037142A1 (en) 2007-07-30 2009-02-05 Lawrence Kates Portable method and apparatus for monitoring refrigerant-cycle systems
US9140728B2 (en) 2007-11-02 2015-09-22 Emerson Climate Technologies, Inc. Compressor sensor module
EP2091031A1 (en) * 2008-02-15 2009-08-19 Siemens Aktiengesellschaft Optical smoke alarm with amplifier integrated in light receiver
WO2009140669A2 (en) 2008-05-16 2009-11-19 Terahop Networks, Inc. Securing, monitoring and tracking shipping containers
GB2486392A (en) * 2010-07-29 2012-06-20 Neil O'neil Domestic electricity management system
CA2828740C (en) 2011-02-28 2016-07-05 Emerson Electric Co. Residential solutions hvac monitoring and diagnosis
US8964338B2 (en) 2012-01-11 2015-02-24 Emerson Climate Technologies, Inc. System and method for compressor motor protection
US9310439B2 (en) 2012-09-25 2016-04-12 Emerson Climate Technologies, Inc. Compressor having a control and diagnostic module
US9638436B2 (en) 2013-03-15 2017-05-02 Emerson Electric Co. HVAC system remote monitoring and diagnosis
US9803902B2 (en) 2013-03-15 2017-10-31 Emerson Climate Technologies, Inc. System for refrigerant charge verification using two condenser coil temperatures
US9551504B2 (en) 2013-03-15 2017-01-24 Emerson Electric Co. HVAC system remote monitoring and diagnosis
CA2908362C (en) 2013-04-05 2018-01-16 Fadi M. Alsaleem Heat-pump system with refrigerant charge diagnostics

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087799A (en) * 1976-07-08 1978-05-02 Conrac Corporation Particulate products of combustion detector employing solid state elements
US4090178A (en) * 1976-08-09 1978-05-16 Norris Elwood G Combination smoke detector and lamp structure
DE2849581A1 (en) * 1977-11-21 1979-07-05 Esb Int Corp SECURITY SYSTEM TO BE USED IN CONJUNCTION WITH A PRIMARY ELECTRICITY SOURCE
US4539556A (en) * 1983-04-15 1985-09-03 Pittway Corporation Combustion products detector with accelerated test
US4717910A (en) * 1985-11-12 1988-01-05 Scripps Keith A Detector and light assembly
US4694285A (en) * 1985-11-12 1987-09-15 Scripps Keith A Combination electrical light, smoke and/or heat detector
GB8609863D0 (en) * 1986-04-23 1986-05-29 Benson L Fire protection device

Also Published As

Publication number Publication date
GB2221074A (en) 1990-01-24
EP0346152A2 (en) 1989-12-13
EP0346152A3 (en) 1990-10-03
GB8813811D0 (en) 1988-07-13

Similar Documents

Publication Publication Date Title
GB8913478D0 (en) Smoke detector devices and detector circuit
GB2199941B (en) Scattered-light smoke detector
GB8901855D0 (en) Solid state current sensing circuit and protection circuit and protection circuit
GB8816259D0 (en) Electronic bite detector
GB2211042B (en) Detector circuit
GB2119984B (en) Infra-sonic detector and alarms including same
KR0139545B1 (en) Amplifier circuit
GB8829892D0 (en) Radiation detection arrangements and methods
GB8817974D0 (en) Smoke detector
SG49593G (en) Detector circuit
GB2219455B (en) Amplifier circuit
GB2219162B (en) Amplifier circuit
GB2220485B (en) Airflow detector
ZA89653B (en) Detection devices
GB8827071D0 (en) Amplifier circuit
GB9102372D0 (en) Flame detection circuit and method
GB2220092B (en) Integrating circuit
GB2226724B (en) Multisound detection circuit
ZA891447B (en) Substituted imidazolinones and imidazolinethiones
GB2214743B (en) Sample and hold circuit
GB8808090D0 (en) Smoke detector
GB8906440D0 (en) Smoke detector
IL92606A0 (en) Sphingenine and derivatives thereof
GB8919922D0 (en) Smoke and fire containment devices
GB8816908D0 (en) Integrating circuit

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)