ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,100, issued on Oct. 21, was assigned to Superstream OY (Helsinki).
"Propulsion unit for a waterborne vessel" was invented by Harri Heino (Helsinki).
According to the abstract* released by the U.S. Patent & Trademark Office: "A propulsion unit for a waterborne vessel comprises: an electrically powered outrunner motor having a stator and a rotor, the rotor being configured for rotation around the stator about a stator axis; a plurality of propeller blades fixed to the rotor for rotation therewith about said stator axis; first and second components forming part of or being fixed to the stator, the first and second components being spaced apart along said stator axis with the rotor b...