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GB8718544D0 - Alarmed window grille - Google Patents

Alarmed window grille

Info

Publication number
GB8718544D0
GB8718544D0 GB878718544A GB8718544A GB8718544D0 GB 8718544 D0 GB8718544 D0 GB 8718544D0 GB 878718544 A GB878718544 A GB 878718544A GB 8718544 A GB8718544 A GB 8718544A GB 8718544 D0 GB8718544 D0 GB 8718544D0
Authority
GB
United Kingdom
Prior art keywords
alarmed
window grille
grille
window
alarmed window
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.)
Granted
Application number
GB878718544A
Other versions
GB2194371A (en
GB2194371B (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.)
SOLICITOR FOR AFFAIRS OF H
Original Assignee
SOLICITOR FOR AFFAIRS OF H
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 SOLICITOR FOR AFFAIRS OF H filed Critical SOLICITOR FOR AFFAIRS OF H
Publication of GB8718544D0 publication Critical patent/GB8718544D0/en
Publication of GB2194371A publication Critical patent/GB2194371A/en
Application granted granted Critical
Publication of GB2194371B publication Critical patent/GB2194371B/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
    • G08B13/02—Mechanical actuation
    • G08B13/12—Mechanical actuation by the breaking or disturbance of stretched cords or wires
    • G08B13/126—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a housing, e.g. a box, a safe, or a room
    • 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
    • G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
    • G08B13/183—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier
    • G08B13/186—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier using light guides, e.g. optical fibres

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
GB8718544A 1986-08-21 1987-08-05 Alarmed window grille Expired - Fee Related GB2194371B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868620385A GB8620385D0 (en) 1986-08-21 1986-08-21 Alarmed window grille

Publications (3)

Publication Number Publication Date
GB8718544D0 true GB8718544D0 (en) 1987-09-09
GB2194371A GB2194371A (en) 1988-03-02
GB2194371B GB2194371B (en) 1990-01-24

Family

ID=10603057

Family Applications (2)

Application Number Title Priority Date Filing Date
GB868620385A Pending GB8620385D0 (en) 1986-08-21 1986-08-21 Alarmed window grille
GB8718544A Expired - Fee Related GB2194371B (en) 1986-08-21 1987-08-05 Alarmed window grille

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB868620385A Pending GB8620385D0 (en) 1986-08-21 1986-08-21 Alarmed window grille

Country Status (1)

Country Link
GB (2) GB8620385D0 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2217370B (en) * 1988-03-15 1991-11-27 Francis Edward James Toomey A security door
SE9600209D0 (en) * 1996-01-19 1996-01-19 Lars Eriksson Alarm device in an optical fiber protective device
GB2503837B (en) * 2011-03-10 2018-03-28 De Wet De Villiers Marius Alarmed intruder barrier

Also Published As

Publication number Publication date
GB8620385D0 (en) 1986-10-01
GB2194371A (en) 1988-03-02
GB2194371B (en) 1990-01-24

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Legal Events

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

Effective date: 19940805