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.
Patent No.:
Date of Patent:
May. 27, 1997
Filed:
Aug. 08, 1994
Applicant:
Inventors:
James M Cummins, Dearborn, MI (US);
Gene R Burnham, Dearborn, MI (US);
William A Oestreich, Westland, MI (US);
James D Boka, Walled Lake, MI (US);
Assignee:
Ford Motor Company, Dearborn, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219497 ; 219501 ; 219202 ; 219481 ; 307117 ;
Abstract
A windshield heating system includes a heating element installed in the defroster ductwork of a motor vehicle. An electrical driver provides electrical power to heat the heating element, thereby immediately providing heated air to the windshield of the vehicle when the vehicle is started in cold weather. The electrical power provided to the heating element can be modulated based on (1) temperature of the air before the heating element, (2) temperature of the heating element, and (3) system voltage of the vehicle.