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SPACE PATENTS BY
Aerospace Assignees
Aerospace Inventors
Time Lines

De-rotation system for a counter-rotating, coaxial rotor hub shaft fairing

Invented by: David A. Darrow, Jr.
Stratford, CT

Fabio P. Bertolotti
South Windsor, CT

Thomas L. Sbabo
Hamden, CT

Frank P. D'Anna
Seymour, CT

Originally Assigned to: Sikorsky Aircraft Corporation
Stratford, CT
[Now assigned to . . .]

Issued:2009-11-24
Filed:2006-05-12
Application No:11432875
Examined by:Eldred; J. Woodrow

A rotor hub fairing system includes an upper hub fairing, a lower hub fairing and a shaft fairing therebetween. The rotor hub fairing system is attached to the counter-rotating, coaxial rotor system through a bearing arrangement such that the shaft fairing may be positioned at an azimuthal position about the main rotor axis of rotation relative the airframe by a de-rotation system. The de-rotation system controls the position of the shaft fairing about the axis of rotation such that the shaft fairing is prevented from rotating freely in unison with either shaft as may otherwise result during some flight regimes.

[pdf] U.S. Pat. No. 7,621,480

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This information is part of a study by Oasis Global, Inc. of all space inventions filed at the United States Patent and Trademark Office, and is provided for informational purposes only. It is not an endorsement of any particular assignee, inventor or invention. Although Peter A. Koziol represents inventors and assignees of space inventions he does not represent all of the inventors and assignees listed. The prosecuting attorney agent or firm for each patent is identified by the United States Patent and Trademark Office in the patent specfication, which can be viewed by clicking on the patent image or downloading the patent document. For more information regarding Mr. Koziol's background and experience, or to learn more about space inventions, please contact Mr. Koziol.

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