Abstract: A portable cooling device for presenting air across the body of a wearer of the device. The portable cooling device includes a shirt portion. The shirt portion comprises a front panel and a back panel securely coupled together. The shirt portion has a neck opening and a pair of sleeves. Each of the panels has an inner and outer surface. A cooling system includes a plurality of tubular members, each of which is elongate and has a first end and a second end. Each of the tubular members is securely attached to the inner surface of the shirt portion. Each of the tubular members has a peripheral wall has a plurality of openings therein. A connector tube has a first end and a second end. The connector tube is securely attached to the inner surface of the vest member. Each of the first and second ends of the tubular members is fluidly coupled to the connector tube. A supply tube supplies air to the tubular members. The supply tube has a first end and a second end.

Abstract: An electronic system verifies that an article has been tagged with an electronic article surveillance marker. The marker includes a resonant circuit for use in detecting the presence of the article by receiving an interrogation signal and returning a response signal. In the system, the physical presence of an article is detected using an article presence detector which outputs an article presence signal upon physical detection thereof. An interrogation zone is monitored with an interrogator for disturbances in the form of a response signal caused by the presence of a marker within the interrogation zone. The interrogator outputs an interrogator output signal when a marker is detected in the interrogation zone. The article presence signals and the interrogator output signals are received in a processor.

Abstract: A resonant tag circuit useful as an electronic security device includes a layered planar structure having a dielectric substrate, a resonant circuit carried on both sides of the dielectric substrate and a semiconductive material having an ionizable salt dissolved therein. The semiconductor material provides a sermiconductive bridge across an activation or deactivation point in the circuit and connects the conductive circuit on both sides of the activation or deactivation point. The resonant tag circuit of this invention is stabilized against premature operation of the activation or deactivation point from electrostatic discharge.