US Patent 11007290 Flying sanitation device and method for the environment

A rover device for sanitizing spacecraft that emits germicidal ultraviolet light with means for sensing and directing rover location, orientation, velocity, trajectory and path is disclosed. Rather, the disclosed embodiment is a rover that uses propellers more in the fashion of a thruster on a satellite which uses short bursts to control satellite position in three translational planes and three rotational axes. Unlike a thruster, the propeller can be reversed, allowing motion in either direction.