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:
Dec. 03, 2019
Filed:
Feb. 28, 2017
Applicant:
Ratier-figeac Sas, Figeac, FR;
Inventor:
Bruno Petellaz, Beduer, FR;
Assignee:
RATIER-FIGEAC SAS, Figeac, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64C 11/36 (2006.01); B64C 11/06 (2006.01); B64C 11/30 (2006.01);
U.S. Cl.
CPC ...
B64C 11/36 (2013.01); B64C 11/06 (2013.01); B64C 11/30 (2013.01);
Abstract
A blade pitch adjustment system comprising a yoke arranged to be moved in a first direction in response to an actuator; a plurality of trunnion pins arranged to be attached to a respective propeller blade; a respective contact surface between the yoke and each trunnion pin such that movement of the yoke causes rotation of the blades, and wherein the contact surfaces differ so as to create different angles of rotation of the blades at different points of yoke movement or actuator stroke.