GB2386192B - Magnetic indicator - Google Patents

Magnetic indicator

Info

Publication number
GB2386192B
GB2386192B GB0226140A GB0226140A GB2386192B GB 2386192 B GB2386192 B GB 2386192B GB 0226140 A GB0226140 A GB 0226140A GB 0226140 A GB0226140 A GB 0226140A GB 2386192 B GB2386192 B GB 2386192B
Authority
GB
United Kingdom
Prior art keywords
magnetic indicator
indicator
magnetic
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
GB0226140A
Other versions
GB2386192A (en
GB0226140D0 (en
Inventor
Robert Dickinson
David Howard Arnold
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.)
Flying Null Ltd
Original Assignee
Flying Null 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 Flying Null Ltd filed Critical Flying Null Ltd
Publication of GB0226140D0 publication Critical patent/GB0226140D0/en
Priority to PCT/GB2002/005805 priority Critical patent/WO2003058573A1/en
Priority to AU2002352470A priority patent/AU2002352470A1/en
Publication of GB2386192A publication Critical patent/GB2386192A/en
Application granted granted Critical
Publication of GB2386192B publication Critical patent/GB2386192B/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
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
GB0226140A 2002-01-08 2002-11-08 Magnetic indicator Expired - Fee Related GB2386192B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/GB2002/005805 WO2003058573A1 (en) 2002-01-08 2002-12-19 Magnetic indicator
AU2002352470A AU2002352470A1 (en) 2002-01-08 2002-12-19 Magnetic indicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0200334A GB0200334D0 (en) 2002-01-08 2002-01-08 Temperature and drop sensor

Publications (3)

Publication Number Publication Date
GB0226140D0 GB0226140D0 (en) 2002-12-18
GB2386192A GB2386192A (en) 2003-09-10
GB2386192B true GB2386192B (en) 2005-10-12

Family

ID=9928759

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0200334A Ceased GB0200334D0 (en) 2002-01-08 2002-01-08 Temperature and drop sensor
GB0226140A Expired - Fee Related GB2386192B (en) 2002-01-08 2002-11-08 Magnetic indicator

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0200334A Ceased GB0200334D0 (en) 2002-01-08 2002-01-08 Temperature and drop sensor

Country Status (1)

Country Link
GB (2) GB0200334D0 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4342904A (en) * 1980-10-27 1982-08-03 Minnesota Mining And Manufacturing Company Lightweight ferromagnetic marker for the detection of objects having markers secured thereto
EP0353040A2 (en) * 1988-07-27 1990-01-31 THORN EMI plc Electromagnetic identification system
US5729201A (en) * 1995-06-29 1998-03-17 International Business Machines Corporation Identification tags using amorphous wire
WO2000008489A1 (en) * 1998-08-04 2000-02-17 Flying Null Limited Magnetic tags and readers therefor
WO2001008085A1 (en) * 1999-07-21 2001-02-01 Avery Dennison Corporation Multi-bit magnetically encoded tag

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4342904A (en) * 1980-10-27 1982-08-03 Minnesota Mining And Manufacturing Company Lightweight ferromagnetic marker for the detection of objects having markers secured thereto
EP0353040A2 (en) * 1988-07-27 1990-01-31 THORN EMI plc Electromagnetic identification system
US5729201A (en) * 1995-06-29 1998-03-17 International Business Machines Corporation Identification tags using amorphous wire
WO2000008489A1 (en) * 1998-08-04 2000-02-17 Flying Null Limited Magnetic tags and readers therefor
WO2001008085A1 (en) * 1999-07-21 2001-02-01 Avery Dennison Corporation Multi-bit magnetically encoded tag

Also Published As

Publication number Publication date
GB2386192A (en) 2003-09-10
GB0200334D0 (en) 2002-02-20
GB0226140D0 (en) 2002-12-18

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Legal Events

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

Effective date: 20061108