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GB2045494B - Intruder alarm system - Google Patents

Intruder alarm system

Info

Publication number
GB2045494B
GB2045494B GB8006162A GB8006162A GB2045494B GB 2045494 B GB2045494 B GB 2045494B GB 8006162 A GB8006162 A GB 8006162A GB 8006162 A GB8006162 A GB 8006162A GB 2045494 B GB2045494 B GB 2045494B
Authority
GB
United Kingdom
Prior art keywords
alarm system
intruder alarm
intruder
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
Application number
GB8006162A
Other versions
GB2045494A (en
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.)
Allard Way Holdings Ltd
Original Assignee
Elliott Brothers London 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 Elliott Brothers London Ltd filed Critical Elliott Brothers London Ltd
Priority to GB8006162A priority Critical patent/GB2045494B/en
Publication of GB2045494A publication Critical patent/GB2045494A/en
Application granted granted Critical
Publication of GB2045494B publication Critical patent/GB2045494B/en
Expired 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
    • G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
    • G08B13/1654—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
GB8006162A 1979-02-23 1980-02-22 Intruder alarm system Expired GB2045494B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8006162A GB2045494B (en) 1979-02-23 1980-02-22 Intruder alarm system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7906598 1979-02-23
GB8006162A GB2045494B (en) 1979-02-23 1980-02-22 Intruder alarm system

Publications (2)

Publication Number Publication Date
GB2045494A GB2045494A (en) 1980-10-29
GB2045494B true GB2045494B (en) 1983-04-20

Family

ID=26270687

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8006162A Expired GB2045494B (en) 1979-02-23 1980-02-22 Intruder alarm system

Country Status (1)

Country Link
GB (1) GB2045494B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3221997A1 (en) * 1982-06-11 1983-12-15 Securiton AG, 3052 Zollikofen, Bern DEVICE FOR MONITORING ARMORED ROOMS, ESPECIALLY SAFE AND CABINETS, AND FOR GENERATING AN ALARM SIGNAL WHEN A BURGLAR ATTEMPT IS TAKEN
US4742338A (en) * 1985-05-17 1988-05-03 Gec Avionics Limited Intruder alarm system
GB9005751D0 (en) * 1990-03-14 1990-05-09 Geoquip Ltd Intrusion detection system and signal processing circuitry therefor
US5610583A (en) * 1991-03-15 1997-03-11 Stellar Systems, Inc. Intrusion warning system

Also Published As

Publication number Publication date
GB2045494A (en) 1980-10-29

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Legal Events

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