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. 20, 2018
Filed:
Aug. 08, 2016
The Boeing Company, Chicago, IL (US);
Fong Shi, Chicago, IL (US);
The Boeing Company, Chicago, IL (US);
Abstract
A system and method for monitoring a critical component (e.g., an electrical deicing heater) on an aircraft. A first electrical current is input into the critical component, a second electrical current is returned from the critical component, and an electrical differential current of the critical component is detected. The electrical differential current is the difference between the first electrical current and the second electrical current. An electrical differential current signal is generated from the detected electrical differential current. The electrical differential current signal is compared to a differential current threshold, and precautionary action is triggered based on the comparison. A deterioration trend of the critical component is monitored by tracking variations in the electrical differential current of the critical component over time.