GB2267963B - Obscuration sensor - Google Patents

Obscuration sensor

Info

Publication number: GB2267963B
Authority: GB; United Kingdom
Prior art keywords: obscuration sensor; obscuration; sensor
Prior art date: 1992-06-04
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 - Lifetime

Application number

GB9311311A

Other versions

GB9311311D0 (en

GB2267963A (en

Inventor

David Appleby

Stephen Henry Ellwood

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.)

1992-06-04

Filing date

1993-06-02

Publication date

1996-03-20

1993-06-02 Application filed by Individual filed Critical Individual

1993-07-21 Publication of GB9311311D0 publication Critical patent/GB9311311D0/en

1993-12-17 Priority to EP93310263A priority Critical patent/EP0629983A1/en

1993-12-22 Publication of GB2267963A publication Critical patent/GB2267963A/en

1996-03-20 Application granted granted Critical

1996-03-20 Publication of GB2267963B publication Critical patent/GB2267963B/en

2013-06-02 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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

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)

GB9311311A 1992-06-04 1993-06-02 Obscuration sensor Expired - Lifetime GB2267963B (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
EP93310263A EP0629983A1 (en)	1993-06-02	1993-12-17	Obscuration type smoke detector

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB929212060A GB9212060D0 (en)	1992-06-04	1992-06-04	Obscuration sensor

Publications (3)

Publication Number	Publication Date
GB9311311D0 GB9311311D0 (en)	1993-07-21
GB2267963A GB2267963A (en)	1993-12-22
GB2267963B true GB2267963B (en)	1996-03-20

Family

ID=10716689

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
GB929212060A Pending GB9212060D0 (en)	1992-06-04	1992-06-04	Obscuration sensor
GB9311311A Expired - Lifetime GB2267963B (en)	1992-06-04	1993-06-02	Obscuration sensor

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
GB929212060A Pending GB9212060D0 (en)	1992-06-04	1992-06-04	Obscuration sensor

Country Status (1)

Country	Link
GB (2)	GB9212060D0 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
AUPN968996A0 (en) *	1996-05-06	1996-05-30	Vision Products Pty Ltd	Filter integrity monitoring system
AUPN968896A0 (en) *	1996-05-06	1996-05-30	Vision Products Pty Ltd	Optical scatter dectector controlling circuit and method
JPH11224387A (en) *	1998-02-05	1999-08-17	Hochiki Corp	Extinction type smoke sensor
AUPQ553800A0 (en) *	2000-02-10	2000-03-02	Cole, Martin Terence	Improvements relating to smoke detectors particularily duct monitored smoke detectors
GB2379977B (en) *	2001-09-25	2005-04-06	Kidde Plc	High sensitivity particle detection
EP1349127A1 (en) *	2002-03-28	2003-10-01	Siemens Building Technologies AG	Obscuration smoke detector and use thereof
CN101135629A (en) *	2003-10-23	2008-03-05	马丁·T·科尔	Housing arrangement adapted to be mounted on a pipeline and method of mounting a housing on a pipeline
KR101069042B1 (en)	2003-10-23	2011-09-29	테렌스 콜 마틴	A chamber configuration adapted for a particle detector having an inlet through which fluid is adapted to flow at a first velocity
EP2059909A4 (en)	2006-09-07	2010-05-19	Siemens Schweiz Ag	Improvement(s) related to particle monitors and method(s) therefor
US11448536B2 (en) *	2019-10-16	2022-09-20	Weatherford Technology Holdings, Llc	Measuring component concentrations of nonhomogeneous immiscible mixtures in multiphase flows using near-infrared (NIR) filter photometry

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3901812A (en) *	1973-01-18	1975-08-26	Satt Elektronik Ab	Visibility meter using multiple light beams
WO1981002633A1 (en) *	1980-03-06	1981-09-17	Baxter Travenol Lab	Photometric apparatus and method
GB2110819A (en) *	1981-05-07	1983-06-22	Nat Res Dev	Analysis apparatus

1992
- 1992-06-04 GB GB929212060A patent/GB9212060D0/en active Pending
1993
- 1993-06-02 GB GB9311311A patent/GB2267963B/en not_active Expired - Lifetime

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3901812A (en) *	1973-01-18	1975-08-26	Satt Elektronik Ab	Visibility meter using multiple light beams
WO1981002633A1 (en) *	1980-03-06	1981-09-17	Baxter Travenol Lab	Photometric apparatus and method
GB2110819A (en) *	1981-05-07	1983-06-22	Nat Res Dev	Analysis apparatus

Also Published As

Publication number	Publication date
GB9311311D0 (en)	1993-07-21
GB9212060D0 (en)	1992-07-22
GB2267963A (en)	1993-12-22

Publication	Publication Date	Title
GB2267342B (en)	1996-05-29	Smoke sensor
GB2295010B (en)	1997-06-11	Sensor system
DE69401347D1 (en)	1997-02-13	Sensor
GB2266956B (en)	1995-10-25	Sensor Unit
DE59205629D1 (en)	1996-04-11	Sensor
GB2263644B (en)	1995-05-10	Event complex
GB2267963B (en)	1996-03-20	Obscuration sensor
GB2265468B (en)	1994-12-07	Alarm system
DE59303064D1 (en)	1996-08-01	Sensor
GB9308305D0 (en)	1993-06-09	Sensors
GB2263352B (en)	1996-03-20	Alarm sensor
GB9122704D0 (en)	1991-12-11	Sensors
EP0592888A3 (en)	1994-08-17	Reliable sensor
GB9222383D0 (en)	1992-12-09	Sensor
GB9209937D0 (en)	1992-06-24	Sensor
GB2270158B (en)	1997-03-19	Detection
GB9227177D0 (en)	1993-02-24	Alarms
GB9216465D0 (en)	1992-09-23	Detection
GB9212873D0 (en)	1992-07-29	Alarm
GB9224617D0 (en)	1993-01-13	Sensor devices
GB9208912D0 (en)	1992-06-10	Detection means
GB9214938D0 (en)	1992-08-26	Detectors
GB9322478D0 (en)	1993-12-22	Sensor system
GB9203423D0 (en)	1992-04-01	Position sensor
ZA938556B (en)	1994-08-02	Detection system

Legal Events

Date	Code	Title	Description
2013-06-26	PE20	Patent expired after termination of 20 years	Expiry date: 20130601