ALEXANDRIA, Va., July 9 -- United States Patent no. 12,351,300, issued on July 8.
"Anti-resonance system for variable speed rotors" was invented by Ruthvik Chandrasekaran (Los Angeles), Dewey H. Hodges (Atlanta) and David J. Hodges (Dallas, Ga.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An anti-resonance system for a blade defining an elongated channel therein and affixed to a helicopter rotor includes a moveable mass disposed within the elongated channel of the blade so as to be able to slide along elongated channel. A moving device coupled to the moveable mass is configured to move the moveable mass within the elongated channel. A controller is configured to cause the moving device to move the moveable...