Patent ID: 8431871
Filing Date: 2013-04-30
Classification: B32B,H05B

Abstract:
1. A transparent glazing unit, comprising: a first busbar; a second busbar; a resistive heating coating that extends from the first busbar to the second busbar, and that is electrically connected to the first busbar and the second busbar such that, when an electrical supply voltage is applied between the first busbar and the second busbar, a current flows, which heats a heating field in the resistive heating coating; and a plurality of conducting strands each extending from, and in direct contact with, the first busbar or the second busbar towards an other of the first busbar or the second busbar, to form at least one semiresistive region, wherein the plurality of conducting strands are in direct contact with the resistive heating coating, and a resistance per unit of area of the semiresistive region is less than a resistance per the unit of area of the resistive heating coating and more than a resistance per the unit of area of the first busbar and the second busbar.