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:
Sep. 09, 2008
Filed:
Jan. 06, 2006
Applicants:
Robert Schwenke, Fowlerville, MI (US);
Keith D. Weiss, Fenton, MI (US);
Inventors:
Robert Schwenke, Fowlerville, MI (US);
Keith D. Weiss, Fenton, MI (US);
Assignee:
Exatec LLC, Wixom, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60L 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A window defroster system that includes a heater grid and a controller. The controller includes a pulse width modulator configured to provide a driving signal to the heater grid. The driving signal has an initial heating portion and a pulsed portion. The initial heating portion provides an initial voltage that is greater than an optimal operating voltage of the heater grid, the pulsed portion provides a pulsed signal with a pulsed high voltage that is greater than the optimal operating voltage.