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:
Jun. 16, 2020
Filed:
Mar. 20, 2017
Arianegroup Sas, Paris, FR;
Christophe Heranger, Conflans Sainte Honorine, FR;
Marco Prampolini, Chambourcy, FR;
ARIANEGROUP SAS, Paris, FR;
Abstract
Propeller for an aircraft engine comprising: a blade mounting associated with each blade, mounted so as to pivot on the hub according to an incident pitch axis; a pivoting link between each blade mounting and the root, allowing the blade to pivot relative to the blade mounting thereof according to a blade collapsing axis; associated with at least one of the blades, a member for controlling the collapsing/extension of the blade configured to pivot the root relative to the blade mounting according to the collapsing axis; and a passive device for synchronising the collapsing/extension of the blades, including a central synchronisation element mounted so as to rotate relative to the hub according to the propeller rotation axis, as well as a coupling element associated with each blade, including a first end mounted on the blade root and a second end mounted on the central synchronisation element.