US Patent 10974825 Aerial system including foldable frame architecture

A frame assembly for an aerial system includes a body and first and second rotor assemblies. The first and second rotor assemblies are coupled to the body by respective hinges. The first and second rotor assemblies are movable between a deployed position and a stowed position. Each rotor assembly includes a shaft assembly coupled to the hinge at one end and having a rotor assembly mounted to an opposite end. A rotary actuator is coupled between the rotor assembly and the shaft assembly and is configured to controllably rotate the rotor assembly relative to the shaft assembly.