GB8729189D0 - Alarm system - Google Patents

Alarm system

Info

Publication number
GB8729189D0
GB8729189D0 GB8729189A GB8729189A GB8729189D0 GB 8729189 D0 GB8729189 D0 GB 8729189D0 GB 8729189 A GB8729189 A GB 8729189A GB 8729189 A GB8729189 A GB 8729189A GB 8729189 D0 GB8729189 D0 GB 8729189D0
Authority
GB
United Kingdom
Prior art keywords
alarm system
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.)
Withdrawn
Application number
GB8729189A
Other versions
GB2217441A (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.)
Plessey Co Ltd
Original Assignee
Plessey Co 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 Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB8729189A priority Critical patent/GB2217441A/en
Publication of GB8729189D0 publication Critical patent/GB8729189D0/en
Publication of GB2217441A publication Critical patent/GB2217441A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
    • B60R25/1004—Alarm systems characterised by the type of sensor, e.g. current sensing means
    • 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
    • G08B13/187—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 interference of a radiation field
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R2325/00—Indexing scheme relating to vehicle anti-theft devices
    • B60R2325/30—Vehicles applying the vehicle anti-theft devices
    • B60R2325/304—Boats
GB8729189A 1987-12-15 1987-12-15 Alarm system for enclosures Withdrawn GB2217441A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8729189A GB2217441A (en) 1987-12-15 1987-12-15 Alarm system for enclosures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8729189A GB2217441A (en) 1987-12-15 1987-12-15 Alarm system for enclosures

Publications (2)

Publication Number Publication Date
GB8729189D0 true GB8729189D0 (en) 1988-01-27
GB2217441A GB2217441A (en) 1989-10-25

Family

ID=10628497

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8729189A Withdrawn GB2217441A (en) 1987-12-15 1987-12-15 Alarm system for enclosures

Country Status (1)

Country Link
GB (1) GB2217441A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2255534B (en) * 1991-05-08 1994-07-20 Britax Weathershields Vehicle opening roof
GB2361308B (en) * 1999-03-17 2002-04-10 British Telecomm Detection system
DE102004034005A1 (en) * 2004-07-14 2006-02-09 Siemens Ag Device for parallel monitoring of multiple elements, use of such a device and methods for monitoring elements and for detecting and indicating damage to elements

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4092636A (en) * 1976-07-14 1978-05-30 Texas Instruments Incorporated Protective alarm system for window using reflected microwave energy
US4507654A (en) * 1981-10-30 1985-03-26 A. R. F. Products Security system with infrared optical position detector
EP0093773A1 (en) * 1981-11-19 1983-11-16 Minnesota Mining And Manufacturing Company Optically based intrusion detector
GB2174194B (en) * 1985-03-27 1989-02-01 Nigel Howard Walton Monitoring device and method

Also Published As

Publication number Publication date
GB2217441A (en) 1989-10-25

Similar Documents

Publication Publication Date Title
GB8808337D0 (en) Alarm system
GB2191365B (en) Alarm system
GB2205670B (en) Alarm system
GB8707393D0 (en) Alarm systems
GB2233135B (en) Alarm system
GB9020093D0 (en) Alarm system
GB8711332D0 (en) Alarm system
GB2202665B (en) Alarm systems
GB2198865B (en) Alarm system
GB8729189D0 (en) Alarm system
GB2209618B (en) Alarm system
GB8820965D0 (en) Improved alarm system
GB8704320D0 (en) Burglar-alarm system
GB8706121D0 (en) Alarm system
GB8713708D0 (en) Alarm system
GB8719862D0 (en) Alarm system
GB8707593D0 (en) Alarm system
ZA887268B (en) Alarm system
GB8707612D0 (en) Alarm system
GB8725447D0 (en) Alarm system
GB8702914D0 (en) Alarm system
GB8709331D0 (en) Alarm system
GB8702505D0 (en) Alarm system
GB8701487D0 (en) Alarm system
GR870063B (en) Alarm system

Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)