Refrigerated container having primary and secondary cooling circuits

Claim 1

IN A REFRIGERATED CONTAINER, A WALL STRUCTURE DEFINING A CHAMBER, SAID STRUCTURE COMPRISING AN OUTER SHELL, AN INNER SHELL SPACED INWARDLY FROM SAID OUTER SHELL BY A LAYER OF INSULATION WITH INTEGRATED LONGITUDINAL REINFORCED PLASTIC BEAMS, SAID INNER SHELL FORMED WITH A PLURALITY OF LIQUID REFRIGERANT CONDUCTING CHANNELS FOR PERIMETER COOLING OF SAID CHAMBER, A PRIMARY REFRIGERATING SYSTEM, A SECONDARY REFRIGERATING SYSTEM INCLUDING A LIQUID REFIRGERANT COOLED BY SAID PRIMARY REFRIGERATING SYSTEM AND CONDUCTED THROUGH SAID CHANNELS IN DUAL CIRCUITS FOR PROVIDING VARIABLE TEMPERATURE WITH VARIABLE HUMIDITY CONTROL IN SAID CHAMBER, A FIRST VARIABLE CONTROL MEANS FOR REGULATING TEMPERATURE CONDITIONS WITHIN SAID CHAMBER, AND A SECOND VARIABLE CONTROL MEANS FOR REGULATING HUMIDITY CONDITIONS WITHIN SAID CHAMBER.