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. 28, 2026
Filed:
Sep. 22, 2023
Pratt & Whitney Canada Corp., Longueuil, CA;
Roja Tabar, Boucherville, CA;
Louis Duranleau-Hendrickx, Montreal, CA;
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Abstract
An erroneous turboprop blade angle accommodation system includes a sensor configured to output a beta signal in response to adjusting a rotational pitch of a rotatable propeller blade, and a controller in signal communication with the sensor to receive the beta signal. The controller is configured to determine a beta angle of the rotatable propeller blade based on the beta signal and to control the rotational pitch based on an activated beta control logic. The controller is further configured to detect a beta error of the beta angle and to deactivate the beta control logic in response to detecting the beta error.