Apparatus for deactivating magnetomechanical EAS markers affixed

Details Apparatus for deactivating magnetomechanical EAS markers affixed Apparatus for deactivating magnetomechanical EAS markers affixed

1997-02-18

1999-05-18

Hofsass, Jeffery A.

Communications: electrical

Condition responsive indicating system

Specific condition

335284, 343742, 3405721, G08B13/14

Patent

active

059054352

ABSTRACT:
A coil array for an EAS marker deactivation device is formed of three co-planar "pancake" coils energized by an a.c. drive signal and arranged to provide significant alternating magnetic fields in each of two orthogonal, horizontal directions. The coil geometry and arrangement are selected to provide smooth field distribution to minimize the possibility of harm to video and audio tapes and other magnetic medium products.

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patent: 5594420 (1997-01-01), Copeland et al.

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