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:
Sep. 12, 2000
Filed:
Aug. 28, 1998
Applicant:
Inventors:
Wolf R Splettstoesser, Braunschweig, DE;
Berend Van De Wall, Braunschweig, DE;
Yves Delrieux, Saint-Denis, FR;
Patrick Gardarein, Ville d'Avray, FR;
Assignee:
Onera, , FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B63H / ;
U.S. Cl.
CPC ...
416228 ; 416238 ;
Abstract
A blade is disclosed for an aircraft rotating aerofoil. The aerodynamically profiled main part of the blade includes an external end part adjacent to the tip of the blade and extending along the span over a distance of at least 0.2 R, where R is the radius of the rotor. The end part having a rear camber over a distance along the span of at least 0.15 R, and the aerodynamically profiled main part includes also a front cambered part, immediately adjacent to the inside of the rear cambered end part.