Transparent window pane provided with a resistive heating coating
First Claim
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1. A transparent glazing unit, comprising:
- a first busbar positioned at a top of the glazing unit;
a second busbar positioned at a bottom of the glazing unit;
a resistive heating coating that extends over a part of the glazing unit 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.
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Abstract
The inventive transparent window pane is provided with a resistive heating coating (2) which extends through a substantial portion of the window pane, in particular on a main view field (A) and is electrically connected to at least two conductor rails (4, 5) in such a way that, when an electric'"'"' supply voltage is applied between said conductor rails, a circulating current heats the coating heating field, wherein said heating field comprises at least one semi-resistive area (6) directly contacting at least on e conductor rail (4, 5).
21 Citations
28 Claims
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1. A transparent glazing unit, comprising:
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a first busbar positioned at a top of the glazing unit; a second busbar positioned at a bottom of the glazing unit; a resistive heating coating that extends over a part of the glazing unit 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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8. A transparent glazing unit, comprising:
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a first busbar positioned at a top of the glazing unit; a second busbar positioned at a bottom of the glazing unit; a resistive heating coating that extends over a part of the glazing unit 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 plastic band in direct contact with the resistive heating coating and at least one of the first busbar and the second busbar to form a semiresistive region in an adhesive layer of the glazing unit, wherein the plastic band is doped with conducting particles.
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Specification