Abstract: Disclosed is a rotary fan having a fan blade, a stationary guard surrounding the fan blade, a stationary motor housing rigidly affixed to the stationary guard, and a revolution mechanism. The revolution mechanism includes a rotary motor revolvably affixed to the motor housing at a universal pivot, the rotary motor having a rotating shaft engage the fan blade such that rotation of the rotating shaft causes rotation of the fan blade, and such that rotation of the fan blade causes an airflow. A revolution motor is rigidly affixed to the motor housing, and one of a link and a disk is rotated by the revolution motor and has an eccentric pivot rotationally engaging the rotary motor and configured to convert rotation of the revolution motor to conical revolution of the rotary motor relative to the motor housing about the universal pivot, such that the fan blade and the airflow revolve in a conical path.