| 摘要 |
<p>This specification discloses an electrically heated windshield construction (300) in which the windshield is of generally trapezoidal shape, has both an upper, generally horizontally extending bus bar (302) and a lower, generally horizontally extending bus bar (304), and a trapezoidal shaped electrically conductive coating (314) on the windshield which electrically interconnects the upper bus and the lower bus bar. The invention is directed to an improved bus bar configuration in which the bus bars are so constructed and arranged that the lower, generally horizontal bus bar (304) is longer in bus bar line of contact with the trapezoidal shaped electrically conductive coating (314) on the windshield than the upper, generally horizontally extending bus bar (302), the relative lengths of the bus bars' line of contact with the electrically conductive coating on the windshield being such that the windshield will defrost and deice in an efficient and uniform manner between the bus bars.</p> |
