US Patent Issued to LEONARDO on Sept. 30 for "Anti-torque rotor for a helicopter" (Italian Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,145, issued on Sept. 30, was assigned to LEONARDO S.P.A. (Rome).

"Anti-torque rotor for a helicopter" was invented by Daniele Podda (Samarate, Italy), Alessandro Rutilio (Samarate, Italy), Stefano Poggi (Samarate, Italy) and Fabrizio Losi (Samarate, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "An anti-torque rotor includes a mast rotatable about a first axis; a plurality of blades; an element slidable along the first axis, rotating integrally with the mast and operatively connected to the blades. The rotor also has a slidable control rod; a first bearing with a rotatable first ring, a second ring radially internal to the first ring and a pl...