ALEXANDRIA, Va., June 25 -- United States Patent no. 12,338,796, issued on June 24.
"Flow power plant having pivoting blades" was invented by Bahne Carstens (Bovenden, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A flow power plant comprises a rotor rotating about a rotation axis and having a plurality of pivoting blades. Each pivoting blade is mounted to the rotor for pivoting between a position pivoted-in towards and a position pivoted-out away from the rotation axis. One separate electric machine operable both as a motor and as a generator is assigned to each pivoting blade for applying torques between the rotor and the pivoting blade. A controller separately controls the separate electric machi...