GB9500056D0 - Improvements in and relating to smoke detectors - Google Patents

Improvements in and relating to smoke detectors

Info

Publication number
GB9500056D0
GB9500056D0 GBGB9500056.8A GB9500056A GB9500056D0 GB 9500056 D0 GB9500056 D0 GB 9500056D0 GB 9500056 A GB9500056 A GB 9500056A GB 9500056 D0 GB9500056 D0 GB 9500056D0
Authority
GB
United Kingdom
Prior art keywords
relating
smoke detectors
detectors
smoke
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Withdrawn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
GBGB9500056.8A
Other versions
GB2296764A (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.)
Novar Systems Ltd
Original Assignee
Caradon Gent Ltd
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 Caradon Gent Ltd filed Critical Caradon Gent Ltd
Priority to GB9500056A priority Critical patent/GB2296764A/en
Publication of GB9500056D0 publication Critical patent/GB9500056D0/en
Priority to PCT/GB1995/002994 priority patent/WO1996021208A1/en
Publication of GB2296764A publication Critical patent/GB2296764A/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Withdrawn legal-status Critical Current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

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)
GB9500056A 1995-01-04 1995-01-04 Improvements in and relating to smoke detectors Withdrawn GB2296764A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB9500056A GB2296764A (en) 1995-01-04 1995-01-04 Improvements in and relating to smoke detectors
PCT/GB1995/002994 WO1996021208A1 (en) 1995-01-04 1995-12-22 Improvements in and relating to smoke detectors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9500056A GB2296764A (en) 1995-01-04 1995-01-04 Improvements in and relating to smoke detectors

Publications (2)

Publication Number Publication Date
GB9500056D0 true GB9500056D0 (en) 1995-03-01
GB2296764A GB2296764A (en) 1996-07-10

Family

ID=10767566

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9500056A Withdrawn GB2296764A (en) 1995-01-04 1995-01-04 Improvements in and relating to smoke detectors

Country Status (1)

Country Link
GB (1) GB2296764A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2335976A (en) * 1998-04-02 1999-10-06 Alasdair James Williamson Replaceable optical cell for scattered light smoke detection apparatus
JP3902377B2 (en) * 2000-03-17 2007-04-04 ニッタン株式会社 Combined thermal smoke sensor
CN102903199A (en) * 2012-11-05 2013-01-30 北京福赛尔安全消防设备有限公司 Point-type heat fire detector

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4238679A (en) * 1978-12-07 1980-12-09 Conrac Corporation Dual-chamber ionization smoke detector assembly
US4469953A (en) * 1982-02-02 1984-09-04 Nittan Company, Limited Combination ionization and photoelectric smoke detector
US4584485A (en) * 1983-08-22 1986-04-22 American District Telegraph Company Optical block in smoke detectors
US4672217A (en) * 1985-04-05 1987-06-09 General Signal Corporation Easily cleaned photoelectric smoke detector
JPH0755674Y2 (en) * 1988-02-02 1995-12-20 ニッタン株式会社 Fire detector

Also Published As

Publication number Publication date
GB2296764A (en) 1996-07-10

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Legal Events

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