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:
Mar. 17, 2015
Filed:
Sep. 28, 2011
Yu Jiao, Blawnox, PA (US);
Hars Gyorgy, Budapest, HU;
Ali N. Rashid, Covington, KY (US);
Joseph Medzius, Cranberry Township, PA (US);
Yu Jiao, Blawnox, PA (US);
Hars Gyorgy, Budapest, HU;
Ali N. Rashid, Covington, KY (US);
Joseph Medzius, Cranberry Township, PA (US);
PPG industries Ohio, Inc., Cleveland, OH (US);
Abstract
An electrical system responsive to overheating and/or electric arcing of an electrically conductive member, e.g. a heating member of an aircraft windshield, includes a first switch in a first current path, and a second switch in a second current path. The first current path is from an electrical power supply through the first switch, through an arc sensor to the heating member to the power supply. The second current path is from a temperature sensor monitoring the temperature of the heating member through the second switch to a temperature controller. When the temperature of the heating member is at or above a predetermined value, the temperature controller causes the first switch to open. When there is arcing, the second switch is moved to the open position. The temperature controller senses that the second switch is open and causes the first switch to open.