Bus bar arrangement for uniformly heating a trapezoidally-shaped

Details Bus bar arrangement for uniformly heating a trapezoidally-shaped Bus bar arrangement for uniformly heating a trapezoidally-shaped

1984-07-02

1985-09-24

Bartis, A.

Electric heating

Heating devices

Combined with diverse-type art device

219345, 219522, 219541, 219543, 219547, 338309, H05B 326, E06B 712, B60J 120

Patent

active

045434662

ABSTRACT:
An electrically heated windshield of generally trapezoidal shape has been bus bars of uniform conductivity throughout their length extending in line contact with the upper and lower edges of a continuous uniformly thick trapezoidal-shaped electrically conductive coating provided on the windshield surface for deicing and defrosting the windshield. The line of contact of the upper bus bar with the conductive coating has a length generally equal to the entire effective length of the upper edge of the conductive coating. The lower bus bar is symetrically located along the lower edge of the conductive coating and has a line of contact length equal to the sum of the length of the upper bus bar plus generally about one-half the difference between the entire effective length of the lower edge of the conductive coating minus the length of the line of contact of the upper bus bar.

REFERENCES:
patent: 2569773 (1951-10-01), Orr
patent: 2689803 (1954-09-01), Ackerman
patent: 2710900 (1955-06-01), Linder
patent: 2724658 (1955-11-01), Lytle
patent: 2725319 (1955-11-01), Tarnopol
patent: 2843713 (1958-07-01), Morgan
patent: 3302002 (1967-01-01), Warren
patent: 3313920 (1967-04-01), Gallez
patent: 3317710 (1967-05-01), Boicey

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