Dual bus bar arrangement for an electrically heatable transparency
First Claim
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1. An electrically heated transparency comprising:
- a transparent sheet, a transparent electroconductive coating on a major surface of the sheet, a first bus bar in contact with the coating along a first edge portion of the sheet, a second bus bar in contact with the coating along a second edge portion of the sheet opposite the first edge portion, at least two electroconductive extensions extending from the second bus bar to at least one terminal area at an edge region removed from the second edge portion, the extensions being electrically insulated from the coating.
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Abstract
A heated transparency is provided with greater reliability by providing dual electrical connections to the bus bar that is at the edge portion remote from the edge at which attachment to the power source are made. Unique features disclosed herein include the provision of leads connected to the remote bus bar that extend along the same side edge of the transparency, and/or the provision of connections to the remote bus bar at locations spaced from the ends of the remote bus bar.
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Citations
17 Claims
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1. An electrically heated transparency comprising:
- a transparent sheet, a transparent electroconductive coating on a major surface of the sheet, a first bus bar in contact with the coating along a first edge portion of the sheet, a second bus bar in contact with the coating along a second edge portion of the sheet opposite the first edge portion, at least two electroconductive extensions extending from the second bus bar to at least one terminal area at an edge region removed from the second edge portion, the extensions being electrically insulated from the coating.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
Specification