Portable humidifier case construction

Claim 1

A PORTABLE HUMIDIFIER COMBINATION COMPRISING A CASE, WATER CONTAINER,AND A HUMIDIFYING MECHANISM, SAID CASE BEING FORMED OF FOUR SEPARATE PLASTIC SIDE WALL PANELS MEETING AT CORNER JUNCTURES THEREOF, THREE OF THE ADJACENT CASE SIDE WALL PANELS HAVING BETWEEN ADJACENT PAIRS OF SIDE PANELS INTERLOCKING TONGUE AND GROOVE MEANS AND COOPERATING INTERLOCKING DETENT MEANS AT THE RESPECTIVE COENOR JUNCTURES THEREOF OPERABLE TO OEIENT AND TO HOLD THE ADJACENT PANELS RELATIVE TO ONE ANOTHER IN A GENERALLY U-SHAPED SUBASSEMBLY, THE REMAINING ONE CASE SIDE WALL PANEL BEING SEPARATELY CONNECTED TO THIS SUBASSEMBLY OF THREE CASE SIDE WALL PANELS TO DEFINE A GENERALLY TUBULAR CONFIGURATION AND MEANS FOR RELEASABLY SECURING THE ONE CASE SIDE WALL PANEL IN PLACE, SAID CASE FURTHUR HAVING SPACED OPENINGS FOR THE INLET AND OUTLET OF AMBIENT AIR AND AN INTERNAL AIR FLOW PATH THEREBETWEEN, SAID INLET OPENING BEING FORMED IN THE ONE SIDE WALL PANEL AND OPEN GRILL STRUCTURE INTEGRAL WITH THE ONE SIDE WALL PANEL TRANSVERSELY ACROSS THE OPENING, FAN MEANS SUPPORTED DIRECTLY FROM THE ONE SIDE WALL PANEL INWARDLY ADJACENT THE GRILL MEANS OPERABLE FOR MOVING AMBIENT AIR FROM THE INLET THROUGH THE CASE AND OUT THE OUTLET, A CYLINDRICAL COWL INTEGRAL WITH THE ONE SIDE WALL PANEL AND SURROUNDING THE AIR INLET OPENING AND THE FAN MEANS, SAID ONE CASE WALL PANEL FURTHUR HAVING INTEGRALLY DEFINED THEREWITH INWARDLY EXTENDED WALL PORTIONS AND AN INWARDLY OFFSET CONNECTING WALL PORTION WHICH DEFINE A CAVITY OPEN TO THE SIDE OF THE WALL PANEL OPPOSITE THE TUBULAR CONFIGURATION, AND CONTROL MEANS IN THE CAVITY FOR OPERATING THE HUMIDIFYING MECHANISM, THE CONTAINER BEING LOCATEDD IN THE CASE AND BEING READILY SEPARABLE THEREFROM, AND SAID HUMIDIFYING MECHANISM BEING DISPOSED INPART IN THE WATER CONTAINER AND IN PART IN THE AIR