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SPACE PATENTS BY
Aerospace Assignees
Aerospace Inventors
Time Lines

Method and system for controlling helicopter vibrations

Invented by: Askari Badre-Alam
Apex, NC

Douglas Swanson
Cary, NC

Jeffrey Cranmer
Holly Springs, NC

Originally Assigned to: Lord Corporation
Cary, NC
[Now assigned to . . .]

Issued:2012-09-25
Filed:2009-12-17
Application No:12640149
Examined by:Collins; Timothy D

A method/system for controlling helicopter vibrations is provided that includes a vibration canceling force generator for actively generating a vibration canceling force. The system includes a resonant actuator having a natural resonant frequency and a resonant actuator electronic control system. The resonant actuator electronic control system provides an electrical drive current to the resonant actuator to drive the resonant actuator about the resonant frequency when commanded by a received command signal. The resonant actuator has a feedback output with the feedback output fed back into the resonant actuator electronic control system wherein the resonant actuator electronic control system adjusts the electrical drive current based on the resonant actuator feedback output to generate the vibration canceling force.

[pdf] U.S. Pat. No. 8,272,592

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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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