GB2254946B - Alarm system - Google Patents

Alarm system

Info

Publication number
GB2254946B
GB2254946B GB9208359A GB9208359A GB2254946B GB 2254946 B GB2254946 B GB 2254946B GB 9208359 A GB9208359 A GB 9208359A GB 9208359 A GB9208359 A GB 9208359A GB 2254946 B GB2254946 B GB 2254946B
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
GB9208359A
Other versions
GB9208359D0 (en
GB2254946A (en
Inventor
Manher 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.)
Eaton Electrical Products Ltd
Original Assignee
Fulleon 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 Fulleon Ltd filed Critical Fulleon Ltd
Publication of GB9208359D0 publication Critical patent/GB9208359D0/en
Publication of GB2254946A publication Critical patent/GB2254946A/en
Application granted granted Critical
Publication of GB2254946B publication Critical patent/GB2254946B/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
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/04—Monitoring of the detection circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
GB9208359A 1991-04-19 1992-04-16 Alarm system Expired - Fee Related GB2254946B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB919108421A GB9108421D0 (en) 1991-04-19 1991-04-19 Alarm system

Publications (3)

Publication Number Publication Date
GB9208359D0 GB9208359D0 (en) 1992-06-03
GB2254946A GB2254946A (en) 1992-10-21
GB2254946B true GB2254946B (en) 1995-01-04

Family

ID=10693593

Family Applications (2)

Application Number Title Priority Date Filing Date
GB919108421A Pending GB9108421D0 (en) 1991-04-19 1991-04-19 Alarm system
GB9208359A Expired - Fee Related GB2254946B (en) 1991-04-19 1992-04-16 Alarm system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB919108421A Pending GB9108421D0 (en) 1991-04-19 1991-04-19 Alarm system

Country Status (1)

Country Link
GB (2) GB9108421D0 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1568084A (en) * 1977-04-25 1980-05-21 Maxted C Devices constructed for use in electrical circuits and comprising two separable parts
GB2055236A (en) * 1979-07-27 1981-02-25 Hochiki Co Fire detetcor and fire alarm system employing same
GB2069205A (en) * 1980-02-06 1981-08-19 Maxted C W A device for use in an electrical circuit and comprising two separable parts
GB2095880A (en) * 1981-03-30 1982-10-06 Electronic Alarms Ltd Fire alarm circuits
GB2134680A (en) * 1983-02-02 1984-08-15 Sound Diffusion Plc Monitored line alarm systems
GB2194090A (en) * 1986-08-14 1988-02-24 Nittan Co Ltd Fire alarm apparatus
GB2237461A (en) * 1989-10-09 1991-05-01 Scantronic Ltd Monitoring faults in electric circuit arrangements

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1568084A (en) * 1977-04-25 1980-05-21 Maxted C Devices constructed for use in electrical circuits and comprising two separable parts
GB2055236A (en) * 1979-07-27 1981-02-25 Hochiki Co Fire detetcor and fire alarm system employing same
GB2069205A (en) * 1980-02-06 1981-08-19 Maxted C W A device for use in an electrical circuit and comprising two separable parts
GB2095880A (en) * 1981-03-30 1982-10-06 Electronic Alarms Ltd Fire alarm circuits
GB2134680A (en) * 1983-02-02 1984-08-15 Sound Diffusion Plc Monitored line alarm systems
GB2194090A (en) * 1986-08-14 1988-02-24 Nittan Co Ltd Fire alarm apparatus
GB2237461A (en) * 1989-10-09 1991-05-01 Scantronic Ltd Monitoring faults in electric circuit arrangements

Also Published As

Publication number Publication date
GB9208359D0 (en) 1992-06-03
GB9108421D0 (en) 1991-06-05
GB2254946A (en) 1992-10-21

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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: 19970416