Security device for electronic surveillance of articles

This invention relates to a security element for electronic article surveillance, comprising two at least partially overlapping layers of conductor strips interconnected by a dielectric coating. This dielectric coating can be a dielectric adhesive coating or a dielectric film. At least one of the tw...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Altwasser, Richard, Lendering, Peter
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:This invention relates to a security element for electronic article surveillance, comprising two at least partially overlapping layers of conductor strips interconnected by a dielectric coating. This dielectric coating can be a dielectric adhesive coating or a dielectric film. At least one of the two conductor strips can also have the dielectric adhesive coating laminated thereto. The present invention relates to a security element for electronic article surveillance, comprising two at least partially overlapping layers of conductor strips interconnected by a dielectric adhesive coating. This arrangement reduces the risk of reactivation after activation is once effected. To achieve this, the upper layer and the lower layer of conductor strips have at least one turn, and that the strength of the two layers of overlapping conductor strips is so high as to cause the security element to bend, if subjected to mechanical strain, in those areas which are essentially devoid of conductor strips.