Patent ID: 6995339

Claim:
A transparency having a heatable wiper rest area comprising: a rigid transparent sheet having a major surface and an area adjacent to a selected edge of the sheet designated as the heatable wiper rest area; an opaque band positioned on selected marginal edge portions of the major surface of the sheet along at least a portion of the selected edge of the sheet in a fixed relationship to the wiper rest area; and a heating arrangement for heating the wiper rest area, the arrangement comprising: an electrically conductive member positioned on the sheet in facing relationship to the opaque band, the conductive member having a first side and a second side with the first and second sides of the conductive member spaced from one another with the second side of the conductive member spaced a greater distance from the edge of the sheet than the first side of the conductive member, and the conductive member extending along at least a portion of the selected edge of the sheet in a fixed relationship to the wiper rest area; a plurality of bus bars positioned in electrical contact along the conductive member, wherein the plurality of bus bars comprises at least three bus bars defined as a first bus bar, a second bus bar and a third bus bar, with the second bus bar positioned between, and spaced from, the first and third bus bars so as to define a first discrete heatable area between and electrically connecting the first and second bus bars, and a second discrete heatable area between and electrically connecting the second and third bus bars; a first lead electrically interconnecting the first and third bus bars at a position adjacent one of the sides designated as the connected side, and spaced from the other side, of the conductive member, the first lead extending over the opaque band along the connected side of the conductive member; a second lead electrically connected to the second bus bar at a position adjacent the connected side, and spaced from the other side, of the conductive member, the second lead extending over the opaque band along the connected side of the conductive member, such that moving current through the first and second leads and the bus bars provides a current across the first discrete area and across the second discrete area to heat the wiper rest area, wherein a portion of the first lead and a portion of the second lead overlay each other; and an insulating member positioned between the portion of the first lead and the portion of the second lead that overlay each other to electrically insulate the portion of the first lead and the portion of the second lead that overlay each other.