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:
Jan. 13, 2026
Filed:
Aug. 08, 2024
Applicant:
Ratier-figeac Sas, Figeac, FR;
Inventors:
Adele Boche, Albiac, FR;
Romain Bouloc, Saint Felix, FR;
Assignee:
RATIER-FIGEAC SAS, Figeac, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64C 11/44 (2006.01); B64C 11/30 (2006.01);
U.S. Cl.
CPC ...
B64C 11/303 (2013.01); B64C 11/301 (2013.01); B64C 11/44 (2013.01);
Abstract
A method of operating a variable pitch propeller system for an aircraft. The method includes: receiving aircraft flight information; performing a virtual pitch calculation to determine a virtual propeller pitch or virtual blade angle from the aircraft flight information; and performing a pitch protection process in response to low virtual propeller pitch or virtual blade angle being determined.