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. 23, 2015
Filed:
Feb. 07, 2012
Dieter Schimke, Unterhaching, DE;
Stefanie Link, Ottobrunn, DE;
Sascha Schneider, Unterhacing, DE;
Airbus Helicopters Deutschland GmbH, Donauworth, DE;
Abstract
A noise reduced and performance improved rotor blade () for a helicopter. The blade has three aerodynamic sections () along the blade span between a leading edge () and a trailing edge (). An inner rectangular or tapered section () next to a blade root for said blade's connection to a rotor hub rotating about a rotor axis of said helicopter. A middle section () is adjacent to the inner section () and opposed to the blade root. The middle section () is forward swept over a distance along the span of the blade (). An outer section () lies between the middle section () and the blade tip (). The outer section () is back swept along a further part of the span of the blade (). The outer section () includes a parabolic shape towards the free end of the blade tip ().