Air conditioning for vehicle of lading

Claim 1

IN A SYSTEM FOR AIR-CONDITIONING ENCLOSED LOADS OF PERISHABLES COMPRISING, IN COMBINATION, A HOUSING INCLUDING A TOP, BOTTOM, AND OPPOSED PAIRS OF SIDE AND END WALLS, A GRIDWORK DISPOSED ON SAID BOTTOM SPACED INWARDLY FROM SAID OPPOSED SIDE WALLS, SAID GRIDWORK INCLUDING AT LEAST ONE LOWER TIER INCLUDING AN AIR-INLET AT ONE END AND COMPRISING A PLURALITY OF LONGITUDINALLY DISPOSED, TRANSVERSELY SPACED ELEMENTS HAVING AN UPPER SUPPORT SURFACE AND FORMING LONGITUDINALLY DISPOSED PASSAGES OPENING UPWARDLY AND COMMUNICATING WITH SAID AIR INLET, THE OUTERMOST ELEMENT ADJACENT AT LEAST ONE OF SAID SIDE WALLS INCLUDING LATERAL OPENINGS BENEATH THE UPPER SUPPORT SURFACE OF SAID ELEMENTS, AND BULKHEADS EXTENDING TRANSVERSELY BETWEEN GROUPS OF SAID LONGITUDINALLY DISPOSED ELEMENTS IN LONGITUDINALLY SPACED RELATION FROM SAID INLET, THE BULKHEADS BEING OF GREATER TRANSVERSE WIDTH PROGRESSIVELY FROM SAID AIR-INLET AND FORMING A SERIES OF INDEPENDENT SECTION FROM WHICH AIR DIRECTED THROUGH SAID AIR-INLET IS DIVIDED AND SIMULTANEOUSLY DISCHARGED LATERALLY FROM BENEATH THE OUTERMOST ELEMENTS.