Patent ID: 6207939
Filing Date: 2001-03-27
Classification: D07B,H02G

Abstract:
A device for de-icing an elongated structural element having a closed contour, comprising:at least one pair of electrically conductive wires preformed for winding, one next to the other, along and around the structural element following a substantially helicoidal trajectory while embracing substantially the contour of the structural element with a predetermined gap between the conductive wires and the structural element, the conductive wires having first ends for receiving electromagnetic impulses, and second ends opposite to the first ends, the conductive wires being sized to withstand a current causing, between the conductive wires of the pair, a repulsion having an intensity capable to break the ice or the frost on the structural element by a separation of the conductive wires from each other in response to the repulsion, the conductive wires having rigidity and elasticity properties such that the conductive wires recover their shape around the structural element after the separation caused by the repulsion;means for electrically connecting the second ends of the conductive wires of the pair together; andmeans for electrically insulating the conductive wires of the pair from each other and from the structural element.