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. 31, 2017
Filed:
Oct. 09, 2014
Airbus Helicopters, Marignane, FR;
Laurent Zamponi, Vitrolles, FR;
Nicolas Fontaine, Aix en Provence, FR;
Valerian Durand, Drancy, FR;
Jean-Francois Hirsch, Aix en Provence, FR;
Boris Grohmann, Munich, DE;
Airbus Helicopters, Marignane, FR;
Abstract
A blade () having an outer covering () defining a cavity (). A carriage () is arranged in said cavity (), the carriage () being provided with a torsion bar () and at least two arms () secured to the torsion bar (). The blade has one connection per arm provided both with an upstream guide gallery and with a downstream guide gallery, each arm extending transversely from an upstream end that slides in an upstream guide gallery to a downstream end that slides in a downstream guide gallery. At least one connection is a helical connection () obtained with the help of an upstream guide gallery () and the downstream guide gallery () of the segment () presenting distinct orientations, giving rise to movement in rotation (ROT) of the segment () under the effect of the carriage () moving in translation.