DE3776463D1 - Einrichtung zum entmagnetisieren von etiketten, die zur verhinderung von warendiebstaehlen dienen. - Google Patents

Einrichtung zum entmagnetisieren von etiketten, die zur verhinderung von warendiebstaehlen dienen.

Info

Publication number
DE3776463D1
DE3776463D1 DE8787306311T DE3776463T DE3776463D1 DE 3776463 D1 DE3776463 D1 DE 3776463D1 DE 8787306311 T DE8787306311 T DE 8787306311T DE 3776463 T DE3776463 T DE 3776463T DE 3776463 D1 DE3776463 D1 DE 3776463D1
Authority
DE
Germany
Prior art keywords
magnetizing
labels
goods
prevent theft
theft
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
DE8787306311T
Other languages
English (en)
Inventor
Eugene C C O Minnesot Heltemes
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Application granted granted Critical
Publication of DE3776463D1 publication Critical patent/DE3776463D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F13/00—Apparatus or processes for magnetising or demagnetising
    • H01F13/006—Methods and devices for demagnetising of magnetic bodies, e.g. workpieces, sheet material
DE8787306311T 1986-07-21 1987-07-16 Einrichtung zum entmagnetisieren von etiketten, die zur verhinderung von warendiebstaehlen dienen. Expired - Fee Related DE3776463D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/887,721 US4689590A (en) 1986-07-21 1986-07-21 Demagnetization apparatus for magnetic markers used with electromagnetic article surveillance systems

Publications (1)

Publication Number Publication Date
DE3776463D1 true DE3776463D1 (de) 1992-03-12

Family

ID=25391722

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787306311T Expired - Fee Related DE3776463D1 (de) 1986-07-21 1987-07-16 Einrichtung zum entmagnetisieren von etiketten, die zur verhinderung von warendiebstaehlen dienen.

Country Status (6)

Country Link
US (1) US4689590A (de)
EP (1) EP0257767B1 (de)
JP (1) JP2551593B2 (de)
AU (1) AU589793B2 (de)
CA (1) CA1269738A (de)
DE (1) DE3776463D1 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4811000A (en) * 1988-03-03 1989-03-07 Sensormatic Electronics Corporation Article enclosure with magnetic marker deactivating means
US4967185A (en) * 1989-08-08 1990-10-30 Minnesota Mining And Manufacturing Company Multi-directionally responsive, dual-status, magnetic article surveillance marker having continuous keeper
US5187462A (en) * 1990-02-15 1993-02-16 Minnesota Mining And Manufacturing Company Multiple magnet assembly for use with electromagnetic article surveillance markers
US5170045A (en) * 1990-03-20 1992-12-08 Esselte Meto Eas Int. Ab Price tag deactivator
US5225807A (en) * 1991-09-16 1993-07-06 Knogo Corporation Method and apparatus for sensitizing and desensitizing targets for electronic article surveillance systems
US5341125A (en) * 1992-01-15 1994-08-23 Sensormatic Electronics Corporation Deactivating device for deactivating EAS dual status magnetic tags
US5285182A (en) * 1992-09-03 1994-02-08 Minnesota Mining And Manufacturing Company Desensitizing apparatus for electromagnetic article surveillance system
US5432499A (en) * 1993-05-27 1995-07-11 Minnesota Mining And Manufacturing Company Collector type article surveillance marker with continuous keeper
FR2709182A1 (fr) * 1993-08-20 1995-02-24 Crescenzo Eric Procédés et dispositifs de magnétisation ou désaimantation d'objets en mouvement.
US5405702A (en) * 1993-12-30 1995-04-11 Minnesota Mining And Manufacturing Company Method for manufacturing a thin-film EAS and marker
WO1995024704A1 (en) * 1994-03-10 1995-09-14 Minnesota Mining And Manufacturing Company Deactivating device for magnetic markers in an electronic article surveillance system
US5625339A (en) * 1996-01-08 1997-04-29 Minnesota Mining And Manufacturing Company Apparatus for changing the status of magnetic markers in an electronic article surveillance system
DE19628722A1 (de) * 1996-07-17 1998-01-22 Esselte Meto Int Gmbh Vorrichtung zum Deaktivieren eines Sicherungselementes für die elektronische Artikelsicherung
US6002335A (en) * 1998-02-18 1999-12-14 3M Innovative Properties Company Small magnet resensitizer apparatus for use with article surveillance systems
US6057763A (en) * 1998-04-10 2000-05-02 3M Innovative Properties Company Method and apparatus for activating and deactivating electromagnetic article surveillance markers
KR20010083887A (ko) * 1998-10-13 2001-09-03 스프레이그 로버트 월터 물체 감시 시스템용 원거리장 자석 재감응 장치
AU2004201043B2 (en) * 1998-10-13 2007-10-25 Minnesota Mining And Manufacturing Company Far field magnet resensitizer apparatus for use with article surveillance systems
US6222453B1 (en) * 1999-03-24 2001-04-24 Nexpak Apparatus for holding a compact disk and accepting affixation of an electronic anti-theft tag
US6783070B2 (en) * 2001-01-02 2004-08-31 Ronald L. Faria Scaneze check-in-check-out library workstation
DE10307515A1 (de) * 2003-02-21 2004-09-02 Checkpoint Systems International Gmbh Vorrichtung und Verfahren zum Aktivieren und Deaktivieren magnetischer Sicherungsetiketten

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3747086A (en) * 1968-03-22 1973-07-17 Shoplifter International Inc Deactivatable ferromagnetic marker for detection of objects having marker secured thereto and method and system of using same
US3790945A (en) * 1968-03-22 1974-02-05 Stoplifter Int Inc Open-strip ferromagnetic marker and method and system for using same
US3765007A (en) * 1969-07-11 1973-10-09 Minnesota Mining & Mfg Method and apparatus for detecting at a distance the status and identity of objects
US3665449A (en) * 1969-07-11 1972-05-23 Minnesota Mining & Mfg Method and apparatus for detecting at a distance the status and identity of objects
US3609611A (en) * 1969-09-26 1971-09-28 Robert A Parnell Method and apparatus for stabilizing permanent magnets
US4271782A (en) * 1978-06-05 1981-06-09 International Business Machines Corporation Apparatus for disorienting magnetic particles
US4222517A (en) * 1978-09-18 1980-09-16 Samuel Cornelious Evans Magnetic marker
JPS59101408U (ja) * 1982-12-24 1984-07-09 株式会社井上ジャパックス研究所 脱磁装置
US4499444A (en) * 1983-05-20 1985-02-12 Minnesota Mining And Manufacturing Company Desensitizer for ferromagnetic markers used with electromagnetic article surveillance systems
US4665387A (en) * 1983-07-13 1987-05-12 Knogo Corporation Method and apparatus for target deactivation and reactivation in article surveillance systems

Also Published As

Publication number Publication date
EP0257767B1 (de) 1992-01-29
CA1269738A (en) 1990-05-29
AU7569487A (en) 1988-01-28
US4689590A (en) 1987-08-25
JP2551593B2 (ja) 1996-11-06
AU589793B2 (en) 1989-10-19
EP0257767A1 (de) 1988-03-02
JPS6341009A (ja) 1988-02-22

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee