Article security element

Details Article security element Article security element

1994-03-17

1996-11-05

Mullen, Thomas

Communications: electrical

Condition responsive indicating system

Specific condition

70 571, 340551, G08B 1314

Patent

active

055721915

ABSTRACT:
An article security element is provided which, regardless of its orientation in relation to a scanning field irradiated by a transmitter coil, can generate a response field which can be reliably detected by a receiver coil. The article security element preferably has a soft magnetic metal strip which is wound about an oblong, column-shaped base body at a winding angle which has a value between about 30 degrees and about 60 degrees with respect to the longitudinal axis of the base body.

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patent: 5008649 (1991-04-01), Klein
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