Transparent prelaminate with electrical connectors
First Claim
1. A prelaminate for a laminated electrically heatable window comprising:
- a transparent sheet-like carrier film having a cut-out section adjacent an edge of the prelaminate,an electrically resistive heating layer on a surface of the carrier film,transparent, flexible, electrically insulated layers bonded to opposite surfaces of the carrier film, one of said insulated layers overlaying the electrically resistive heating layer,a pair of conductive bus bars embedded between the electrically resistive heating layer and the insulated layer overlaying the electrically resistive heating layer,a separate electrically conductive tab in electrical contact with each bus bar, each tab being disposed in a corresponding cut-out portion of the embedded carrier film, each tab also projecting outside the prelaminate away from an edge of the prelaminate, the electrically insulated layers overlaying and being bonded to the portions of the bus bars disposed in the cut-out sections of the carrier film,separate electrical connectors on the remote ends of each tab outside the edge of the prelaminate, each electrical connector having an electrical contact for forming a cooperating electrically conductive pin-and-socket connection with a complementary electrical contact, andmeans electrically insulating the portion of each tab extending outside the edge of the prelaminate and at least a portion of each tab bonded to the insulated layers.
5 Assignments
0 Petitions
Accused Products
Abstract
A laminated electrically heatable window has a transparent electrically conductive layer embedded in the window to act as a sheet resistor, and conductive bus bars embedded in the window in contact with the resistive layer. A portion of each bus bar extends outside an edge of the window to a terminal connection for making electrical contact with a harness cable leading to an electric current source such as an automobile alternator. Each terminal connection comprises separate electrical contacts on the ends of the bus bar and the cable harness for forming a cooperating pin and socket connection normal to the bus bar. The electrical contacts are pressure fitted together and hermetically sealed from end-to-end in an electrically insulating, protective sleeve.
30 Citations
15 Claims
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1. A prelaminate for a laminated electrically heatable window comprising:
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a transparent sheet-like carrier film having a cut-out section adjacent an edge of the prelaminate, an electrically resistive heating layer on a surface of the carrier film, transparent, flexible, electrically insulated layers bonded to opposite surfaces of the carrier film, one of said insulated layers overlaying the electrically resistive heating layer, a pair of conductive bus bars embedded between the electrically resistive heating layer and the insulated layer overlaying the electrically resistive heating layer, a separate electrically conductive tab in electrical contact with each bus bar, each tab being disposed in a corresponding cut-out portion of the embedded carrier film, each tab also projecting outside the prelaminate away from an edge of the prelaminate, the electrically insulated layers overlaying and being bonded to the portions of the bus bars disposed in the cut-out sections of the carrier film, separate electrical connectors on the remote ends of each tab outside the edge of the prelaminate, each electrical connector having an electrical contact for forming a cooperating electrically conductive pin-and-socket connection with a complementary electrical contact, and means electrically insulating the portion of each tab extending outside the edge of the prelaminate and at least a portion of each tab bonded to the insulated layers. - View Dependent Claims (3, 4, 5, 6, 7)
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2. The combination according to claim 2 in which the electrical connector on each tab projects away from the tab and extends generally parallel to the edge of the prelaminate.
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8. A prelaminate for a laminated electrically heatable window comprising:
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a transparent sheet-like carrier film, an electrically conductive element on the carrier film, the conductive element having a generally flat face, a transparent electrically insulated layer bonded to the carrier to embed the conductive element between the carrier and the insulated layer, a generally flat, electrically conductive strip in electrical contact with said electrically conductive element and embedded between the conductive element of the carrier and the insulated layer, a portion of the conductive strip projecting outside an edge of the prelaminate; a first electrical connector on the remote end of the conductive strip outside the edge of the prelaminate, the electrical connector having an electrical contact for forming a cooperating electrically conductive pin-and-socket connection with a complementary electrical contact, the electrical connector extending away from the main body of the strip in a direction generally parallel to said flat face of the conductive element, the electrical connector extending transverse to the length of the strip and being located closer to the edge of the prelaminate than the width of the strip, and a second electrical connector means for making electrical contact with said electrically conductive element. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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Specification