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:
May. 28, 2019
Filed:
May. 15, 2017
Applicant:
Airbus Helicopters, Marignane, FR;
Inventors:
Andre Amari, La Chapelle en Serval, FR;
Jacques Gaffiero, Paris, FR;
Assignee:
AIRBUS HELICOPTERS, Marignane, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64C 27/48 (2006.01); B64C 27/635 (2006.01); B64C 27/473 (2006.01);
U.S. Cl.
CPC ...
B64C 27/48 (2013.01); B64C 27/635 (2013.01); B64C 2027/4736 (2013.01);
Abstract
A monolithic blade of a rotorcraft rotor, the blade comprising at least locally an airfoil zone having a pressure side face and a suction side face. The invention is remarkable in that the blade has a root zone including a finger with a spherical bearing surface arranged at a root end of the blade, a recess suitable for receiving a laminated spherical bearing, and a flexible portion having a preferred direction of deformation in bending about a flapping axis of the blade, the flexible portion being arranged between the finger and the recess.