GB2321747B - Alarm system - Google Patents

Alarm system

Info

Publication number
GB2321747B
GB2321747B GB9701941A GB9701941A GB2321747B GB 2321747 B GB2321747 B GB 2321747B GB 9701941 A GB9701941 A GB 9701941A GB 9701941 A GB9701941 A GB 9701941A GB 2321747 B GB2321747 B GB 2321747B
Authority
GB
United Kingdom
Prior art keywords
alarm system
alarm
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
GB9701941A
Other versions
GB2321747A (en
GB9701941D0 (en
Inventor
Carlos Faria
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 PROTECTION Ltd
Original Assignee
RAFIKI PROTECTION 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 RAFIKI PROTECTION Ltd filed Critical RAFIKI PROTECTION Ltd
Priority to GB9701941A priority Critical patent/GB2321747B/en
Publication of GB9701941D0 publication Critical patent/GB9701941D0/en
Priority to EP19980300392 priority patent/EP0856828B1/en
Priority to DE69822010T priority patent/DE69822010D1/en
Publication of GB2321747A publication Critical patent/GB2321747A/en
Application granted granted Critical
Publication of GB2321747B publication Critical patent/GB2321747B/en
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
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/018—Sensor coding by detecting magnitude of an electrical parameter, e.g. resistance

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire Alarms (AREA)
GB9701941A 1997-01-30 1997-01-30 Alarm system Expired - Fee Related GB2321747B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB9701941A GB2321747B (en) 1997-01-30 1997-01-30 Alarm system
EP19980300392 EP0856828B1 (en) 1997-01-30 1998-01-20 Alarm system
DE69822010T DE69822010D1 (en) 1997-01-30 1998-01-20 alarm system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9701941A GB2321747B (en) 1997-01-30 1997-01-30 Alarm system

Publications (3)

Publication Number Publication Date
GB9701941D0 GB9701941D0 (en) 1997-03-19
GB2321747A GB2321747A (en) 1998-08-05
GB2321747B true GB2321747B (en) 2000-10-18

Family

ID=10806843

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9701941A Expired - Fee Related GB2321747B (en) 1997-01-30 1997-01-30 Alarm system

Country Status (3)

Country Link
EP (1) EP0856828B1 (en)
DE (1) DE69822010D1 (en)
GB (1) GB2321747B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU8026498A (en) * 1997-06-07 1998-12-21 Fulleon Limited Alarm system
GB2370670B (en) * 2000-09-22 2005-03-02 Manhar Amlani Emergency signalling device
GB2423618B (en) * 2004-03-15 2008-08-13 Novar Systems Ltd Improvements in and relating to addressable devices
FR2897968B1 (en) 2006-02-24 2008-11-21 Airbus France Sas FIRE DETECTION SYSTEM AND AIRCRAFT EQUIPPED WITH SUCH A SYSTEM

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1310169A (en) * 1969-03-25 1973-03-14 Siemens Ag Alarm systems
GB1320651A (en) * 1970-03-31 1973-06-20 Nittan Co Ltd Fire alarm systems
US4163226A (en) * 1977-09-02 1979-07-31 Statitrol Division Emerson Electric Co. Alarm condition detecting apparatus and method
EP0071752A1 (en) * 1981-07-02 1983-02-16 Nohmi Bosai Kogyo Co., Ltd. Fire alarm system
EP0093095A2 (en) * 1982-04-23 1983-11-02 Cerberus Ag A method and an apparatus for identifying a detector giving an alarm in a loop circuit having a predetermined number of detectors connected in parallel
US4435698A (en) * 1980-06-11 1984-03-06 Hekatron Gmbh Circuit arrangement for the transmission of measurements to a central, especially in a fire alarm system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2215105A (en) * 1988-02-16 1989-09-13 Richard William Henry Ford Personnel evacuation system
US5539389A (en) * 1991-11-15 1996-07-23 Pittway Corporation Enhanced group addressing system
FR2723234B1 (en) * 1994-07-29 1996-10-18 Lewiner Jacques ALARM DETECTION DEVICE WITH CURRENT LOOPS, AND SUBZONE TRACKING BEACON FOR SUCH A DEVICE

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1310169A (en) * 1969-03-25 1973-03-14 Siemens Ag Alarm systems
GB1320651A (en) * 1970-03-31 1973-06-20 Nittan Co Ltd Fire alarm systems
US4163226A (en) * 1977-09-02 1979-07-31 Statitrol Division Emerson Electric Co. Alarm condition detecting apparatus and method
US4435698A (en) * 1980-06-11 1984-03-06 Hekatron Gmbh Circuit arrangement for the transmission of measurements to a central, especially in a fire alarm system
EP0071752A1 (en) * 1981-07-02 1983-02-16 Nohmi Bosai Kogyo Co., Ltd. Fire alarm system
EP0093095A2 (en) * 1982-04-23 1983-11-02 Cerberus Ag A method and an apparatus for identifying a detector giving an alarm in a loop circuit having a predetermined number of detectors connected in parallel

Also Published As

Publication number Publication date
EP0856828B1 (en) 2004-03-03
GB2321747A (en) 1998-08-05
DE69822010D1 (en) 2004-04-08
EP0856828A2 (en) 1998-08-05
EP0856828A3 (en) 2000-01-05
GB9701941D0 (en) 1997-03-19

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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)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20140130