US Patent 7886555 Mobile communications shelter with air distribution assembly

A mobile communications shelter comprising a personnel accessible chamber containing racks of stacked electronic communications equipment positioned along or adjacent to interior walls of the chamber, and a refrigeration apparatus mounted outside of the chamber and configured to supply cooled air to the chamber, is characterized by an air distribution assembly having a plurality of air ducts configured for directing cooled air supplied by the refrigeration apparatus to a plurality of selected vertical levels of the equipment.