Global Patent Index - EP 0919050 B1

EP 0919050 B1 2000-03-22 - ELECTRONIC ANTI-THEFT ELEMENT

Title (en)

ELECTRONIC ANTI-THEFT ELEMENT

Title (de)

SICHERUNGSELEMENT FÜR DIE ELEKTRONISCHE ARTIKELSICHERUNG

Title (fr)

ELEMENT ANTIVOL ELECTRONIQUE

Publication

EP 0919050 B1 (DE)

Application

EP 97940042 A

Priority

  • DE 19631775 A
  • DE 19705723 A
  • EP 9704116 W

Abstract (en)

[origin: US6262663B1] An electronic anti-theft element consists of at least one spiral printed circuit, a capacitor and a dielectric layer arranged therebetween, or of two spiral printed circuits which are arranged on respective sides of a dielectric layer in an at least partially overlapping manner (forming resonant circuit). The object of the invention is to provide a resonant circuit which is less liable to be reactivated. For that purpose, in at least one selected area (a rated break point) of the dielectric layer a short-circuit is created between the opposite capacitor plates or spiral printed circuits when a sufficiently high energy is supplied by a magnetic alternating field. The selected area is locally reinforced, preventing the suppression of the short-circuit by mechanical stress and the reactivation of the anti-theft element.

IPC 1-7 (main, further and additional classification)

G08B 13/24

IPC 8 full level (invention and additional information)

G08B 13/24 (2006.01)

CPC (invention and additional information)

G08B 13/242 (2013.01); G08B 13/2437 (2013.01)

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB IT LI NL PT SE

EPO simple patent family

US 6262663 B1 20010717; AT 191095 T 20000415; AU 4203397 A 19980225; CA 2262573 A1 19980212; CA 2262573 C 20020416; EP 0919050 A1 19990602; EP 0919050 B1 20000322; ES 2147456 T3 20000901; JP 2001504604 A 20010403; JP 3634382 B2 20050330; NO 313066 B1 20020805; NO 990517 A 19990204; NO 990517 D0 19990204; PT 919050 E 20000831; WO 9806075 A1 19980212

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- Owner name: BARZANO' E ZANARDO MILANO S.P.A.

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