Method of making a laminated windshield

Claim 1

A method of making a windshield having two sheets of glass laminated together by a laminating interlayer which comprises the steps of cutting a first glass template (10) from a sheet of glass, placing on a selected surface of said first glass template opaque material (12) which is bondable to said selected surface to form opaque areas on said selected surface which do not transmit light in the visible wave length area, bonding said opaque material to said selected surface of said first glass template to form said opaque areas, placing on portions of both said opaque areas and said selected surface of said first glass template conductive material which is bondable to portions of both said opaque areas and said selected surface to form electrically conductive terminal areas (14,16) for an electrically conductive coating to be applied between terminal areas of opposite polarity, placing on portions of said opaque areas not having electrically conductive terminal areas thereon a slippage inducing material (22) which is bondable to portions of said opaque areas to permit slippage of a glass template thereover, bonding said conductive material to said portions of said opaque areas and said selected surface area, bonding said slippage inducing material (22) to portions of said opaque areas, cutting a second glass template (24) from a sheet of glass, placing said second glass template (24) and said first glass template (10) in a glass bending device in such a manner that said selected surface of said first glass template is in facing relationship with a surface of said second glass template, bending said first and said second glass templates (10,24), said electrically conductive terminal areas (14,16) and slippage inducing material (22) permitting relative movement between said first and said second glass templates (10,24) during said bending thereof without the production of glass chips, separating said first and said second glass templates (10,24), applying an electrically conductive coating between said terminal areas of opposite polarity on said first glass template, reuniting said first and said second glass templates (10,24) with an interposed laminating interlayer, and laminating said first and said second glass templates (10,24) together to form a laminated glass windshield.

Claim 2

A method of making a windshield having two sheets of glass laminated together by a laminating interlayer which comprises the steps of cutting a first glass template (10) from a sheet of glass, placing on a selected surface of said first glass template opaque material (12) which is bondable to said selected surface to form opaque areas on said selected surface which do not transmit light in the visible wave length area, bonding said opaque material to said selected surface of said first glass template to form said opaque areas, placing on portions of both said opaque areas and said selected surface of said first glass template conductive material which is bondable to portions of both said opaque areas and said selected surface to form electrically conductive terminal areas (14,16) for an electrically conductive coating to be applied between terminal areas of opposite polarity, placing on portions of said opaque areas not having electrically conductive terminal areas thereon a slippage inducing material (22) which is bondable to portions of said opaque areas to permit slippage of a glass template thereover, bonding said conductive material to said portions of said opaque areas and said selected surface area, bonding said slippage inducing material (22) to portions of said opaque areas, cutting a second glass template (24) from a sheet of glass, placing said second glass template (24) and said first glass template (10) in a glass bending device in such a manner that said selected surface of said first glass template is in facing relationship with a surface of said second glass template, bending said first and said second glass templates (10,24), said electrically conductive terminal areas (14,16) and slippage inducing material (22) permitting relative movement between said first and said second glass templates (10,24) during said bending thereof without the production of glass chips, separating said first and said second glass templates (10,24), applying an electrically conductive coating between said terminal areas of opposite polarity on said first glass template, reuniting said first and said second glass templates (10,24) with an interposed laminating interlayer, and laminating said first and said second glass templates (10,24) together to form a laminated glass windshield.