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:
Apr. 19, 2011
Filed:
Oct. 22, 2004
Applicant:
Michael D. Briggs, Owens Crossroads, AL (US);
Inventor:
Michael D. Briggs, Owens Crossroads, AL (US);
Assignee:
PPG Industries Ohio, Inc., Cleveland, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
In an aircraft windshield defogging/deicing system, a pair of transparent sheets maintained in spaced facing relation by a transparent interlayer have a resistive coating positioned between the transparent sheets. An inverter is provided for applying to the resistive coating a square wave or quasi-square wave AC signal. In response to receiving this AC signal, the resistive coating generates heat, which reduces or avoids the accumulation of moisture or ice on the aircraft windshield.