ALEXANDRIA, Va., July 9 -- United States Patent no. 12,352,239, issued on July 8.
"Helical turbine" was invented by Swati Maini (Mumbai, India).
According to the abstract* released by the U.S. Patent & Trademark Office: "Described herein is a rotor assembly 100 for a turbine. The rotor assembly comprises a plurality of helical rotor blades 102a, 102b, 102c being curved about their respective longitudinal axes. At least one connecting member 104a, 104b, 104c is attached to each of the plurality of helical rotor blades. Each helical rotor blades comprises a plurality of fins 106. The rotor assembly improves the rotational, aerodynamic and overall efficiency of rotating systems, and is configured to sustain lift in an efficient manner. The r...