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
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
GB2232800A (en
GB9009379D0 (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
Original Assignee
KEEFFE PATRICK 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
Application filed by KEEFFE PATRICK 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
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation 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
    • G08B13/19—Actuation 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 infrared-radiation detection systems
GB9009379A 1989-05-02 1990-04-26 Improvements in intruder alarms Expired - Fee Related GB2232800B (en)

Applications Claiming Priority (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