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. 22, 2018
Filed:
Jun. 12, 2014
Airbus Helicopters Deutschland Gmbh, Donauworth, DE;
Kaspar Von-Wilmowsky, Donauworth, DE;
AIRBUS HELICOPTERS DEUTSCHLAND GMBH, Donauworth, DE;
Abstract
A rotor system of a rotary wing aircraft, such as a helicopter, is provided. The rotor system includes a rotor mast, a rotor hub and at least four, angularly generally even distributed rotor blades and swash plate struts for pitch and subsequently flap control. The rotor blades are pairwise to each other with zero offset to the rotor hub. The rotor hub is provided with a hollow bearing with at least one further bearing inside. A first pair of rotor blades is mounted on the hollow bearing and is pivotable in a first flap direction generally perpendicular to the rotation axis. A second pair of rotor blades is mounted inside the hollow bearing on the at least one further bearing and is pivotable in a second flap direction generally perpendicular to the first flap direction and the rotation axis, and independently of the first pair of rotor blades.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile