GB2271873B - Electronic burglar alarm system - Google Patents

Electronic burglar alarm system

Info

Publication number
GB2271873B
GB2271873B GB9218626A GB9218626A GB2271873B GB 2271873 B GB2271873 B GB 2271873B GB 9218626 A GB9218626 A GB 9218626A GB 9218626 A GB9218626 A GB 9218626A GB 2271873 B GB2271873 B GB 2271873B
Authority
GB
United Kingdom
Prior art keywords
alarm system
burglar alarm
electronic burglar
electronic
burglar
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
GB9218626A
Other versions
GB9218626D0 (en
GB2271873A (en
Inventor
Josef Petr Prokopius
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 GB9218626A priority Critical patent/GB2271873B/en
Publication of GB9218626D0 publication Critical patent/GB9218626D0/en
Publication of GB2271873A publication Critical patent/GB2271873A/en
Application granted granted Critical
Publication of GB2271873B publication Critical patent/GB2271873B/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
    • G08B13/16—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
    • G08B13/1663—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems using seismic sensing means
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/14—Central alarm receiver or annunciator arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Burglar Alarm Systems (AREA)
GB9218626A 1992-09-03 1992-09-03 Electronic burglar alarm system Expired - Fee Related GB2271873B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9218626A GB2271873B (en) 1992-09-03 1992-09-03 Electronic burglar alarm system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9218626A GB2271873B (en) 1992-09-03 1992-09-03 Electronic burglar alarm system

Publications (3)

Publication Number Publication Date
GB9218626D0 GB9218626D0 (en) 1992-10-21
GB2271873A GB2271873A (en) 1994-04-27
GB2271873B true GB2271873B (en) 1997-02-26

Family

ID=10721320

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9218626A Expired - Fee Related GB2271873B (en) 1992-09-03 1992-09-03 Electronic burglar alarm system

Country Status (1)

Country Link
GB (1) GB2271873B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2300263B (en) * 1995-04-28 1999-10-27 Josef Petr Prokopius Piezo electric detection system for security devices

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1237109A (en) * 1968-12-17 1971-06-30 Shorrock Dev Discriminating amplifier for high frequency detection devices
GB1285786A (en) * 1969-04-02 1972-08-16 American District Telegraph Co Improvements in or relating to electrical alarm systems
GB1443702A (en) * 1972-08-30 1976-07-21 Granley Products London Ltd Alarm systems
GB1520096A (en) * 1976-09-09 1978-08-02 Spirig Ernst Method of and apparatus for detecting damage to frangible objects
GB2027242A (en) * 1978-07-31 1980-02-13 Notecalm Ltd Improvements in or relating to alarm systems
US4633234A (en) * 1982-09-20 1986-12-30 Audio Sentry Manufacturing, Inc. Sonic detector having digital sampling circuit
GB2179481A (en) * 1985-08-20 1987-03-04 Rentokil Ltd Method and apparatus
GB2189031A (en) * 1986-04-01 1987-10-14 Graham Wild Vibration sensor unit for alarm system
GB2222255A (en) * 1988-08-16 1990-02-28 Pennwalt Piezo Film Sensing breakage of glass

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1237109A (en) * 1968-12-17 1971-06-30 Shorrock Dev Discriminating amplifier for high frequency detection devices
GB1285786A (en) * 1969-04-02 1972-08-16 American District Telegraph Co Improvements in or relating to electrical alarm systems
GB1443702A (en) * 1972-08-30 1976-07-21 Granley Products London Ltd Alarm systems
GB1520096A (en) * 1976-09-09 1978-08-02 Spirig Ernst Method of and apparatus for detecting damage to frangible objects
GB2027242A (en) * 1978-07-31 1980-02-13 Notecalm Ltd Improvements in or relating to alarm systems
US4633234A (en) * 1982-09-20 1986-12-30 Audio Sentry Manufacturing, Inc. Sonic detector having digital sampling circuit
GB2179481A (en) * 1985-08-20 1987-03-04 Rentokil Ltd Method and apparatus
GB2189031A (en) * 1986-04-01 1987-10-14 Graham Wild Vibration sensor unit for alarm system
GB2222255A (en) * 1988-08-16 1990-02-28 Pennwalt Piezo Film Sensing breakage of glass

Also Published As

Publication number Publication date
GB9218626D0 (en) 1992-10-21
GB2271873A (en) 1994-04-27

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 19970901

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20000903