Patent ID: 6765181
Filing Date: 2004-07-20
Classification: H05B

Abstract:
An inductor assembly for induction heat treatment of a workpiece, the inductor assembly comprising:an inductor formed from a single piece of an electrically conductive stock, the inductor having a workpiece opening passing through the width of the inductor, into which the workpiece can be inserted, and a pair of legs for connecting the inductor to a source of ac power, the legs electrically separated from each other by a leg slot to form an integral single-turn coil around the workpiece opening; a flux concentrator disposed at least partially around the workpiece on at least one of the two opposing sides of the inductor; and a top, side and bottom frame member formed from an electrically non-conductive material and joined together to at least partially surround the top edge of the inductor, the side edge of the inductor opposing the pair of legs, and the bottom edge of the inductor, to hold the flux concentrators in place.