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     Peter A. Koziol, Esq.
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SPACE PATENTS BY
Aerospace Assignees
Aerospace Inventors
Time Lines

Method for suppressing vibration and acoustic signature in a tiltrotor aircraft

Invented by: Joseph W. Wendelsdorf
Arlington, TX

Victor L. Berry
Bedford, TX

Originally Assigned to: Textron Innovations Inc.
Providence, RI
[Now assigned to . . .]

Issued:2012-06-19
Filed:2008-04-11
Application No:12595286
Examined by:Collins; Timothy D

A method is disclosed for suppressing an external acoustic signature of an aircraft having at least one pair of non-intermeshing multiple-blade rotors. During operation of the aircraft, the at least one pair of rotors are rotated in an asymmetrically indexed manner that causes the blades of one of each pair of rotors to be consistently out of phase from the blades of the other of each pair of rotors. The selected amount in degrees of asymmetrical indexing is equal to the desired phasing in degrees divided by a number of blades of one of the rotors.

[pdf] U.S. Pat. No. 8,201,772

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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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