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:
Oct. 10, 2023
Filed:
May. 21, 2021
Pratt & Whitney Canada Corp., Longueuil, CA;
Joseph Ernesto Marone, Montreal, CA;
Ella Yakobov, Montreal, CA;
Ian Farrell, Greenfield Park, CA;
Olivier Basse, Saint-Bruno, CA;
Martin Dobson, Brossard, CA;
Martin Clermont, Montreal, CA;
Marc Lavoie, Otterburn Park, CA;
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Abstract
There is provided a blade angle feedback assembly for a propeller of an aircraft engine. The propeller is rotatable about an axis and has propeller blades rotatable about respective spanwise axes to adjust a blade angle thereof. The blade angle feedback assembly comprises a feedback ring having a plurality of position markers disposed thereon, at least one sensor configured to provide feedback on the blade angle of the propeller blades by detecting a relative movement between the feedback ring and the at least one sensor, and at least one shielding element provided between the feedback ring and the propeller, the at least one shielding element configured to shield the feedback ring from electromagnetism.