Cryogenic insulation system

Claim 1

AN INSULATED CONTAINER STRUCTURE FOR MATERIALS MAINTAINED AT CRYOGENIC TEMPERATURES AND ATMOSPHERIC PRESSURES COMPRISING: (A) A RIGID OUTER SUPPORTING STRUCTURE, (B) A PLURALITY OF EFFECTIVELY DIMENSIONALLY STABLE INSULATING PANELS ARRAYED IN A GENERAL END-TO-END AND SIDE-BY-SIDE RELATION, (C) MEANS MAINTAINING SAID PANELS IN SAID ARRAY AND AGAINST SAID OUTER RIGID CONSTRUCTURED, STEPPED EDGE PLUG MEANS INTERPOSED BETWEEN SAID PANELS, (D) ADHESIVE SEALING MEANS JOINING SAID STEPPED EDGE PLUG MEANS TO ADJACENT ONES OF SAID INSULATING PANELS IN A MANNER WHEREBY SAID PANELS COOPERATIVELY DEFINE A CONTINUOUS LIQUID-TIGHT SECONDARY BARRIER, (E) A PLURALITY OF TRIPLEX PRIMARY BARRIER PANELS HAVING PERIPHERAL FRAME MEMBERS SUPPORTING SPACED LAYERS OF CARGO-RESISTANT SHEET MATERIAL SANDWICHING HONEYCOMB STRUCTURES THEREBETWEEN, (F) SAID FRAME MEMBERS HAVING INNER AND OUTER-FLANGES, (G) FLEXIBLE BELLOWS-LIKE ELEMENTS INTERCONNECTING THE INNER FLANGES OF ADJACENT TRIPLEX PANELS, (H) MOUNTING MEANS SLIDABLY ENGAGING SAID PLUG MEANS TO HOLD SAID TRIPLEX PANELS AGAINST SAID INSULATING PANELS WHILE ACCOMMODATING RELATIVE MOVEMENT THEREBETWEEN, (I) WHEREBY SAID TRIPLEX PANELS DEFINE A CONTINOUS PRIMARY BARRIER WHICH IS FREELY MOVABLE RELATIVE TO AND INDEPENDENTLY OF SAID SECOND BARRIER.