The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 14, 2004

Filed:

Jul. 24, 2002
Applicant:
Inventor:

Allen R. Hawk, Pittsburgh, PA (US);

Assignee:

PPG Industries Ohio, Inc., Cleveland, OH (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60L 1/02 ;
U.S. Cl.
CPC ...
B60L 1/02 ;
Abstract

A transparency, e.g. a laminated windshield has a pair of spaced bus bars on an electric conductive member e.g. an electric conductive coating on a glass sheet. The perimeter of the coating is spaced from the peripheral edge of the sheet to provide a non-conductive strip. Ends the bus bars extend into the non-conductive strip to minimize/eliminate hot spots at the end portions of the bus bars. An additional feature to reduce hot spots includes bus bars having different lengths with portions of the coating between the bus bars not extending beyond the ends of the longer bus bar. In another, the windshield has a vision area, a bus bar between the top edge of the coating and the top edge of the vision area and a bus bar between the bottom edge of the coating and bottom edge of the vision area.


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