US Patent Number
A ventilation system for an underground mine includes a blowing curtain, a passive regulator in a shape of an airfoil and an airflow ventilation source. The passive regulator is positioned in the air path adjacent a discharge end of the blowing curtain.
University of Kentucky Research Foundation, Lexington, KY (US)
Wala, Andrzej M. and Petrov, Todor P., "Blowing Curtain Face Ventilation System for Extended Cut Mining Using Passive Regulator" (2021). Mining Engineering Faculty Patents. 1.