US Patent 11297967 Curtain for storage rack

An example curtain system can include: a curtain forming a flexible body with an opening at each corner of the body; a tensioning device at each corner of the body of the curtain to couple the curtain to a backside of a rack, wherein each tensioning device includes a hook member with a first end sized to engage an opening in the rack and a threaded second end; and a nut configured to be threaded onto the threaded second end of the hook member to tension the curtain relative to the rack.