GB2347772B - Fire alarm system - Google Patents

Fire alarm system

Info

Publication number
GB2347772B
GB2347772B GB9905588A GB9905588A GB2347772B GB 2347772 B GB2347772 B GB 2347772B GB 9905588 A GB9905588 A GB 9905588A GB 9905588 A GB9905588 A GB 9905588A GB 2347772 B GB2347772 B GB 2347772B
Authority
GB
United Kingdom
Prior art keywords
detector
sounders
activated
smoke
control panel
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 - Fee Related
Application number
GB9905588A
Other versions
GB2347772A (en
GB9905588D0 (en
Inventor
Manhar Amlani
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.)
RAFIKI HOLDINGS Ltd
Original Assignee
RAFIKI HOLDINGS 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10849413&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=GB2347772(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by RAFIKI HOLDINGS Ltd filed Critical RAFIKI HOLDINGS Ltd
Priority to GB9905588A priority Critical patent/GB2347772B/en
Publication of GB9905588D0 publication Critical patent/GB9905588D0/en
Priority to EP00301624A priority patent/EP1035528B1/en
Priority to DE60003351T priority patent/DE60003351T2/en
Priority to PT00301624T priority patent/PT1035528E/en
Priority to AT00301624T priority patent/ATE243355T1/en
Publication of GB2347772A publication Critical patent/GB2347772A/en
Publication of GB2347772B publication Critical patent/GB2347772B/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/18—Prevention or correction of operating errors
    • G08B29/20—Calibration, including self-calibrating arrangements
    • G08B29/24—Self-calibration, e.g. compensating for environmental drift or ageing of components

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire Alarms (AREA)
  • Fire-Detection Mechanisms (AREA)

Abstract

A fire alarm system comprises a control panel 13 and a plurality of combined smoke detectors and sounders 10 connected to a wire extending from the control panel 13. Each detector 10 is arranged to change from a standby condition to an alarm condition when activated by smoke, however the control panel 13 is only arranged to trigger the sounders 10 when the activated detector 10 has changed from its standby condition to the alarm condition at least twice within a predetermined time period. In use, if the detector 10 was activated by smoke eg. from cooking, the smoke will diffuse quickly and the detector will not be activated again, and the sounders will not be triggered. However, if there is a real fire, the detector will be reactivated immediately and the sounders will be triggered. <IMAGE>
GB9905588A 1999-03-12 1999-03-12 Fire alarm system Expired - Fee Related GB2347772B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB9905588A GB2347772B (en) 1999-03-12 1999-03-12 Fire alarm system
AT00301624T ATE243355T1 (en) 1999-03-12 2000-02-29 FIRE ALARM SYSTEM
PT00301624T PT1035528E (en) 1999-03-12 2000-02-29 FIRE ALARM SYSTEM
DE60003351T DE60003351T2 (en) 1999-03-12 2000-02-29 Fire Alarm System
EP00301624A EP1035528B1 (en) 1999-03-12 2000-02-29 Fire alarm system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9905588A GB2347772B (en) 1999-03-12 1999-03-12 Fire alarm system

Publications (3)

Publication Number Publication Date
GB9905588D0 GB9905588D0 (en) 1999-05-05
GB2347772A GB2347772A (en) 2000-09-13
GB2347772B true GB2347772B (en) 2003-05-07

Family

ID=10849413

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9905588A Expired - Fee Related GB2347772B (en) 1999-03-12 1999-03-12 Fire alarm system

Country Status (5)

Country Link
EP (1) EP1035528B1 (en)
AT (1) ATE243355T1 (en)
DE (1) DE60003351T2 (en)
GB (1) GB2347772B (en)
PT (1) PT1035528E (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0509955D0 (en) * 2005-05-14 2005-06-22 Rafiki Holdings Ltd Fire alarm system
DE102011006470B4 (en) * 2011-03-31 2016-07-28 Siemens Aktiengesellschaft Combined fire detection and control device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1052399A (en) * 1963-06-21
US4556873A (en) * 1983-04-30 1985-12-03 Matsushita Electric Works, Ltd. Fire alarm system
US4568924A (en) * 1983-10-17 1986-02-04 Cerberus Ag Method of and apparatus for signalling an alarm
WO1987003985A1 (en) * 1985-12-17 1987-07-02 Weyrad (Electronics) Limited Improvements relating to alarm systems
GB2191324A (en) * 1986-05-29 1987-12-09 Cadin Electronics Security alarm system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1052399A (en) * 1963-06-21
US4556873A (en) * 1983-04-30 1985-12-03 Matsushita Electric Works, Ltd. Fire alarm system
US4568924A (en) * 1983-10-17 1986-02-04 Cerberus Ag Method of and apparatus for signalling an alarm
WO1987003985A1 (en) * 1985-12-17 1987-07-02 Weyrad (Electronics) Limited Improvements relating to alarm systems
GB2191324A (en) * 1986-05-29 1987-12-09 Cadin Electronics Security alarm system

Also Published As

Publication number Publication date
GB2347772A (en) 2000-09-13
ATE243355T1 (en) 2003-07-15
EP1035528A3 (en) 2001-03-07
GB9905588D0 (en) 1999-05-05
DE60003351T2 (en) 2004-04-29
PT1035528E (en) 2003-11-28
EP1035528B1 (en) 2003-06-18
DE60003351D1 (en) 2003-07-24
EP1035528A2 (en) 2000-09-13

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
7276 Counter claim for revocation lodged in the pat. court (section 72)
S72Z Claim or counterclaim for revocation before the court (sect. 72 patents act1977)

Free format text: CLAIM FOR REVOCATION DISCONTINUED; PATENTS COURT ON 21 DECEMBER 2007 DISCONTINUED BY CONSENT ORDER DATED 19 JUNE 2009 (HC07C03491)

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20110312