Method for making an electrically heatable windshield

Details Method for making an electrically heatable windshield Method for making an electrically heatable windshield

1989-03-31

1990-08-14

Schor, Kenneth M.

Glass manufacturing

Processes

Fusion bonding of glass to a formed part

65 55, 65 602, 65 605, 65 6053, 65107, C03C 1723, C03B 23023

Patent

active

RE0332976

ABSTRACT:
This specification teaches a method for making an electrically heatable windshield of laminated construction. In the method, a pair of glass templets are cut (10) and they include a long glass templet and a short glass templet. The templets are separated (20) from one another. An opaque ceramic paint is applied (30) to an edge portion of a coatable surface of a selected glass templet and is dried (40) thereon. Bus bars are also applied (50) to and dried (60) on the coatable surface of the long glass templet. The glass templets are united (70) and subjected to a bending operation (80) to form a shaped windshield pair. The long glass templet and short glass templet are separated (90). A transparent electrically conductive coating is applied (100) between the bus bars located on the selected glass templet. The templets are reunited (110) with an interposed laminating interlayer material and thereafter laminated (120) together to achieve a shaped laminated windshield which is heatable by the flow of electrical energy therethrough.

REFERENCES:
patent: 2795084 (1957-06-01), Littleton
patent: 3078693 (1963-02-01), Lytle
patent: 3721594 (1973-03-01), Tarnopol et al.
patent: 3762902 (1973-10-01), Wagner et al.
patent: 3880636 (1975-04-01), Tobin et al.
patent: 4548836 (1985-10-01), Middleton et al.

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