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:
Jul. 21, 2015
Filed:
Nov. 28, 2012
Airbus Helicopters, Marignane, Cedex, FR;
Laurent Bianchi, Marseilles, FR;
Nicolas Isidore, Les Milles, FR;
Airbus Helicopters, Marignane Cedex, FR;
Abstract
A blade () having a fitting () for fastening to a hub and an aerodynamic element () having a main spar () surrounding a bushing () for transmitting centrifugal forces and connected to said fitting (). The blade includes a transmission member () for transmitting torsional forces and co-operating with a torsion box. The fitting () includes an annular recess () defining a first recess () and a second recess () that are separated by a top separator () and a bottom separator () locally obstructing the annular recess (), the blade () including a first ring () and a second ring () reversibly arranged respectively in the first recess () and in the second recess (), each ring () being fastened to the top separator () and to the bottom separator (), a ring () including a fastener pin () passing through said bushing () and said fitting () in co-operation with the other ring ().