Patent ID: 6608561
Filing Date: 2003-08-19
Classification: A22B,G06K

Abstract:
A method for making a radio frequency identification device (REID) comprising the steps of:providing radio frequency identification circuitry; pouring curable liquid into a preformed mold to a first predetermined depth; allowing a predetermined time to pass to permit the curable liquid to gel, but not sufficient to allow the liquid to fully cure; placing the circuitry upon the surface of the now gelled liquid; filling the mold to a second predetermined depth with additional curable liquid; allowing a second predetermined amount of time to pass to allow both the first and second depths of the poured curable liquid to fully cure and attain a homogeneous interface between the two depths, thereby preventing the occurrence of a seam between the two depths of now cured liquid, whereby the radio frequency identification circuitry is positioned within the cured liquid so as to keep the circuitry a predetermined distance away from a ferrous object which may interfere with the communication between the REID and an REID reader.