Alarm tag and method of making and deactivating it

Details Alarm tag and method of making and deactivating it Alarm tag and method of making and deactivating it

1987-04-22

1988-10-18

Dawson, Robert A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156 52, 340572, 361402, B32B 3128

Patent

active

047785527

ABSTRACT:
This invention relates to a deactivatable tag useable with an electronic article surveillance system and comprised of planar conductive material cut into a pair of inverse, first and second spiral conductors wrapped about each other and positioned for capacitive and inductive coupling. The invention also relates to method of making tags wherein conductors are cut from a planar web of conductive material in a continuous process in a manner that the cutting results in the formation of two spiral conductors without accompanying waste of conductive material, and thereafter positioning the conductors to provide resonant circuits.

REFERENCES:
patent: 3240647 (1966-03-01), Morgan
patent: 3624631 (1971-11-01), Chomet et al.
patent: 3810147 (1974-05-01), Lichtblau
patent: 3913219 (1975-10-01), Lichtblau
patent: 3967161 (1976-06-01), Lichtblau
patent: 4369557 (1983-01-01), Vandebult
patent: 4482874 (1984-11-01), Rubertus et al.
patent: 4555291 (1985-11-01), Tait et al.
patent: 4567473 (1986-01-01), Lichtblau
patent: 4689636 (1987-08-01), Tait et al.

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