US Patent 10492560 Head ventilation devices, systems and related methods

The present disclosure is directed to head ventilation devices and systems. A shell which may be worn as a hat includes a gap along at least a portion of a user's hatline defined by one or more spacer assemblies. An airflow assembly disposed at an upper end of the shell and spaced apart from the user's scalp causes airflow through the gap and an upper opening to ventilate a user's head. Additional protection features for sun shading, inclement weather, and/or safety may also be included.