A portable air cooling device comprising an insulating box including a lid, the box having exterior walls and a floor, the exterior walls including at least one inlet port and at least one outlet port, the box having a multiplicity of dividers, the dividers defining a serpentine air column between the...http://www.google.es/patents/US20090044932?utm_source=gb-gplus-sharePatente US20090044932 - Air cooling device
