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GB2147439B - Intruder detector - Google Patents

Intruder detector

Info

Publication number
GB2147439B
GB2147439B GB08326373A GB8326373A GB2147439B GB 2147439 B GB2147439 B GB 2147439B GB 08326373 A GB08326373 A GB 08326373A GB 8326373 A GB8326373 A GB 8326373A GB 2147439 B GB2147439 B GB 2147439B
Authority
GB
United Kingdom
Prior art keywords
intruder detector
intruder
detector
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
Application number
GB08326373A
Other versions
GB2147439A (en
Inventor
Gillies David Pitt
David Neville Batchelder
Sydney Edward Wright
Peter John Linwood
Peter Clifton
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB08326373A priority Critical patent/GB2147439B/en
Publication of GB2147439A publication Critical patent/GB2147439A/en
Application granted granted Critical
Publication of GB2147439B publication Critical patent/GB2147439B/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00Burglar, theft or intruder alarms
    • G08B13/02Mechanical actuation
    • G08B13/12Mechanical actuation by the breaking or disturbance of stretched cords or wires
    • G08B13/126Mechanical actuation by the breaking or disturbance of stretched cords or wires for a housing, e.g. a box, a safe, or a room

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
GB08326373A 1983-10-01 1983-10-01 Intruder detector Expired GB2147439B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08326373A GB2147439B (en) 1983-10-01 1983-10-01 Intruder detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08326373A GB2147439B (en) 1983-10-01 1983-10-01 Intruder detector

Publications (2)

Publication Number Publication Date
GB2147439A GB2147439A (en) 1985-05-09
GB2147439B true GB2147439B (en) 1986-09-10

Family

ID=10549595

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08326373A Expired GB2147439B (en) 1983-10-01 1983-10-01 Intruder detector

Country Status (1)

Country Link
GB (1) GB2147439B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2162669A (en) * 1984-05-25 1986-02-05 Michael David Woods Improvements in or relating to alarm alert systems for buildings
GB2182182B (en) * 1985-04-24 1989-06-28 Sound Special Services Limited Intrusion detecting device
IL78728A (en) * 1986-05-08 1990-07-12 Magal Security Systems Ltd Security fence
CA2272651A1 (en) * 1996-11-25 1998-06-04 Federico Ciordinik Anti-intrusion apparatus, particularly for passage openings, like doors, windows, or similar
DE10039273A1 (en) * 2000-08-11 2002-02-21 Alcatel Sa System for monitoring access to buildings

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1602112A (en) * 1978-02-01 1981-11-04 Rca Security Systems Ltd Alarm equipment
US4370020A (en) * 1979-07-10 1983-01-25 Davey James W Transportable fibre optic apparatus for use in a security system
GB2091874B (en) * 1981-01-22 1984-11-14 Secr Defence Intruder detection system
GB2101378A (en) * 1981-07-09 1983-01-12 Gordon James Pill Improvements in and relating to underground installation protection systems
AU550274B2 (en) * 1981-09-18 1986-03-13 Honda Giken Kogyo Kabushiki Kaisha Theftproof device

Also Published As

Publication number Publication date
GB2147439A (en) 1985-05-09

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Legal Events

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