Patent ID: 8220568

Claim:
A powering assembly comprising: a carrier having one or more structural elements; an axle coupled to the carrier; a wheel coupled to the axle and configured to rotate about the axle in a plane substantially perpendicular to an axis of the axle; a first secondary coil winding affixed to the wheel and configured such that when the wheel is proximate to an embedded conductor embedded in a roadway and carrying a first electrical current, a magnetic field induced by the first electrical current induces a second electrical current in the first secondary coil winding; a substantially linear rod mechanically coupled to the carrier such that the longitudinal axis of the rod is substantially perpendicular to the axis of the axle; and a second secondary coil winding affixed to the rod and configured such that when the rod is proximate to the embedded conductor, a magnetic field induced by the first electrical current induces a third electrical current in the second secondary coil winding.