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SPACE PATENTS BY
Aerospace Assignees
Aerospace Inventors
Time Lines

Counter-rotational inertial control of rotorcraft

Invented by: Mark Yim
St. Davids, PA

Christopher Everett Thorne
Philadelphia, PA Applicant: Name City State Country Type Yim

Originally Assigned to: The Trustees of the University of Pennsylvania
Philadelphia, PA
[Now assigned to . . .]

Issued:2013-06-18
Filed:2010-04-16
Application No:12761842
Examined by:Dinh; Tien

A rotorcraft with two counter-rotating rotors and method for inertially controlling the rotorcraft. The rotorcraft includes a hinged frame configured such that at least one inter-rotor angle of the two counter-rotating rotors is controlled by at least one actuated hinge of the hinged frame and the rotational axes of the two counter-rotating rotors are substantially collinear when the actuated hinge is in a fully open position. The sum of the magnitudes of torque applied to the two counter-rotating rotors is varied to control the lift of the rotorcraft. The difference of the magnitudes of torque applied to the two counter-rotating rotors is varied to control the yaw of the rotorcraft. The at least one inter-rotor angle is varied using the at least one actuated hinge to control the pitch and/or roll of the rotorcraft.

[pdf] U.S. Pat. No. 8,464,978

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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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