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GB2253734B - Alarm system - Google Patents

Alarm system

Info

Publication number
GB2253734B
GB2253734B GB9105495A GB9105495A GB2253734B GB 2253734 B GB2253734 B GB 2253734B GB 9105495 A GB9105495 A GB 9105495A GB 9105495 A GB9105495 A GB 9105495A GB 2253734 B GB2253734 B GB 2253734B
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
GB9105495A
Other versions
GB2253734A (en
GB9105495D0 (en
Inventor
Pedro Francisco Marrero
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.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB9105495A priority Critical patent/GB2253734B/en
Publication of GB9105495D0 publication Critical patent/GB9105495D0/en
Priority to GB9204307A priority patent/GB2253692B/en
Priority to EP92302188A priority patent/EP0503965A1/en
Publication of GB2253734A publication Critical patent/GB2253734A/en
Application granted granted Critical
Publication of GB2253734B publication Critical patent/GB2253734B/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
    • G08B29/10—Monitoring of the annunciator circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Emergency Alarm Devices (AREA)
GB9105495A 1991-03-15 1991-03-15 Alarm system Expired - Fee Related GB2253734B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB9105495A GB2253734B (en) 1991-03-15 1991-03-15 Alarm system
GB9204307A GB2253692B (en) 1991-03-15 1992-02-28 Alarm system
EP92302188A EP0503965A1 (en) 1991-03-15 1992-03-13 Alarm system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9105495A GB2253734B (en) 1991-03-15 1991-03-15 Alarm system

Publications (3)

Publication Number Publication Date
GB9105495D0 GB9105495D0 (en) 1991-05-01
GB2253734A GB2253734A (en) 1992-09-16
GB2253734B true GB2253734B (en) 1994-07-27

Family

ID=10691618

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9105495A Expired - Fee Related GB2253734B (en) 1991-03-15 1991-03-15 Alarm system

Country Status (2)

Country Link
EP (1) EP0503965A1 (en)
GB (1) GB2253734B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2289365A (en) * 1994-05-07 1995-11-15 Pyronix Ltd A sounder having a protective casing
GB9410581D0 (en) * 1994-05-26 1994-07-13 Independent Computer Support Electronic security device
GB2359649B (en) * 2000-02-25 2004-06-16 Delaware Electronic Technology Alarm unit
DE202014104195U1 (en) 2014-09-05 2014-09-17 Elv Elektronik Ag sensor device
CN113744509B (en) * 2021-09-06 2023-02-28 华帝股份有限公司 Flip early warning method and device, computer equipment and readable storage medium

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2187893A (en) * 1986-03-15 1987-09-16 Burroughs Corp Shielded equipment enclosure
GB2189083A (en) * 1986-03-15 1987-10-14 Burroughs Corp Equipment enclosure

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3710371A (en) * 1970-02-18 1973-01-09 G Whalen Portable security alarm and alarm system
US4241332A (en) * 1979-02-05 1980-12-23 Body Guard, Inc. Personal security alarm
DE8627987U1 (en) * 1986-10-21 1986-12-04 Sonax-Alarmanlagen GmbH & Co KG, 49477 Ibbenbüren Protective housing for an acoustic signal generator
GB2215500A (en) * 1988-03-08 1989-09-20 Triple S Developments Ltd Burglar alarms

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2187893A (en) * 1986-03-15 1987-09-16 Burroughs Corp Shielded equipment enclosure
GB2189083A (en) * 1986-03-15 1987-10-14 Burroughs Corp Equipment enclosure

Also Published As

Publication number Publication date
GB2253734A (en) 1992-09-16
GB9105495D0 (en) 1991-05-01
EP0503965A1 (en) 1992-09-16

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20020315