GB2232800B - Improvements in intruder alarms - Google Patents

Improvements in intruder alarms

Info

Publication number
GB2232800B
GB2232800B GB9009379A GB9009379A GB2232800B GB 2232800 B GB2232800 B GB 2232800B GB 9009379 A GB9009379 A GB 9009379A GB 9009379 A GB9009379 A GB 9009379A GB 2232800 B GB2232800 B GB 2232800B
Authority
GB
United Kingdom
Prior art keywords
improvements
intruder alarms
intruder
alarms
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
GB9009379A
Other versions
GB9009379D0 (en
GB2232800A (en
Inventor
Patrick O'keeffe
Kieran O'sullivan
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.)
KEEFFE PATRICK O
SULLIVAN KIERAN O
Original Assignee
KEEFFE PATRICK O
SULLIVAN KIERAN O
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
Priority to IE330789 priority Critical
Application filed by KEEFFE PATRICK O, SULLIVAN KIERAN O filed Critical KEEFFE PATRICK O
Publication of GB9009379D0 publication Critical patent/GB9009379D0/en
Publication of GB2232800A publication Critical patent/GB2232800A/en
Application granted granted Critical
Publication of GB2232800B publication Critical patent/GB2232800B/en
Anticipated expiration legal-status Critical
Application status is Expired - Fee Related legal-status Critical

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00Burglar, theft or intruder alarms
    • G08B13/18Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength
    • G08B13/189Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/19Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength using passive radiation detection systems using infra-red radiation detection systems
GB9009379A 1989-05-02 1990-04-26 Improvements in intruder alarms Expired - Fee Related GB2232800B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IE330789 1989-05-02

Publications (3)

Publication Number Publication Date
GB9009379D0 GB9009379D0 (en) 1990-06-20
GB2232800A GB2232800A (en) 1990-12-19
GB2232800B true GB2232800B (en) 1993-11-17

Family

ID=11038366

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9009379A Expired - Fee Related GB2232800B (en) 1989-05-02 1990-04-26 Improvements in intruder alarms

Country Status (1)

Country Link
GB (1) GB2232800B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2259173A (en) * 1991-08-27 1993-03-03 Status Innovations Limited Alarm device
GB9502389D0 (en) * 1995-02-07 1995-03-29 Dean Thomas W G Detection device
US7088284B2 (en) * 2003-11-16 2006-08-08 Preco Electronics, Inc. Portable proximity-sensing safety device
FR2975209B1 (en) * 2011-05-09 2014-01-03 Arch Office Alarm device of size and mass suitable for handling by one person

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878539A (en) * 1974-04-19 1975-04-15 Chadyeane Gooding Portable alarm device usable on inwardly or outwardly opening doors
FR2308149A1 (en) * 1975-04-15 1976-11-12 Olanyer Gabriel Radar intruder alarm and detection system - has all circuits and autonomous supply in housing which can be disguised with publicity material or similar
US4808974A (en) * 1987-07-01 1989-02-28 Cantley Richard E Door alarm

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878539A (en) * 1974-04-19 1975-04-15 Chadyeane Gooding Portable alarm device usable on inwardly or outwardly opening doors
FR2308149A1 (en) * 1975-04-15 1976-11-12 Olanyer Gabriel Radar intruder alarm and detection system - has all circuits and autonomous supply in housing which can be disguised with publicity material or similar
US4808974A (en) * 1987-07-01 1989-02-28 Cantley Richard E Door alarm

Also Published As

Publication number Publication date
GB2232800A (en) 1990-12-19
GB9009379D0 (en) 1990-06-20

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Legal Events

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

Effective date: 19980426