US Patent Issued to Archer Aviation on Feb. 18 for "Systems and methods for oil maintenance in gearboxes for eVTOL aircraft" (California Inventors)

ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,227,300, issued on Feb. 18, was assigned to Archer Aviation Inc. (San Jose, Calif.).

"Systems and methods for oil maintenance in gearboxes for eVTOL aircraft" was invented by Scott Graves (Felton, Calif.) and Robert Wayne Moore (Auburn, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electric propulsion system comprising an electric motor assembly. The electric motor assembly may include a housing having an internal volume, a stator ring disposed about a perimeter of the internal volume, and a rotor positioned within the stator. The electric motor assembly may include a main shaft connected to the rotor via a gear reduction, wherein the main sh...