Economic, multi-directionally responsive marker for use in elect

Details Economic, multi-directionally responsive marker for use in elect Economic, multi-directionally responsive marker for use in elect

1987-11-30

1989-05-09

Orsino, Joseph A.

Communications: electrical

Condition responsive indicating system

Specific condition

340572, G08B 1324, G08B 1314

Patent

active

048292885

ABSTRACT:
A magnetic marker for use with electronic article surveillance (EAS) systems in which a two-directional very high order harmonic response is obtained. The markers comprise two pairs of elongated strips of low coercive force, high permeability material positioned in a tic-tac-toe configuration such that the strips at right angles to an applied field of an EAS system collect and concentrate the lines of flux associated with the field into the strips parallel to the field, the concentrated flux being sufficient to result in a high harmonic response.

REFERENCES:
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patent: 4710754 (1987-12-01), Montean
patent: 4743890 (1988-05-01), Hilzinger et al.
patent: 4746908 (1988-05-01), Montean

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