Temperature control means utilizing a heat reservoir containing meltable material

Claim 1

FOR A VEHICLE INTENDED FOR FLIGHT BEYOND THE EARTH''S ATMOSPHERE AND HAVING A CASING WITH INTERIOR AND EXTERIOR SURFACES, WHEREIN THE EXTERIOR SURFACE OF SAID CASING IS THE EXTERIOR SURFACE OF SAID VEHICLE, AN ELECTRONIC EQUIPMENT PACKAGE COMPRISING, IN COMBINATION, A FIRST STRUCTURAL MEMBER SECURED TO THE INTERIOR SURFACE OF SAID CASING IN EFFICIENT HEAT TRANSFERRING RELATIONSHIP THEREWITH, SAID FIRST STRUCTURAL MEMBER HAVING CAVITIES FORMED THEREIN, A SOLID SUBSTANCE HAVING A SPECIFIC GRAVITY LESS THAN 2.1, SPECIFIC HEAT GREATER THAN A 17 CAL./GM./* C. AND HEAT OF FUSION GREATER THAN 15 CAL./GM. PARTIALLY FILLING THE CAVITIES OF SAID FIRST STRUCTURAL MEMBER, A SECOND STRUCTURAL MEMBER ARANGED TO RETAIN SAID SUBSTANCE WITHIN AND TO SEAL SAID CAVITIES, A DIELECTRIC THERMAL CONDUCTOR SECURED TO THE SURFACE OF SAID SECOND STRUCTURAL MEMBER IN A MANNER TO MINIMIZE THE THERMAL RESISTANCE ACROSS THE INTERFACE THEREBETWEEN, ELECTRONIC COMPONENTS ASSEMBLED IN THERMAL CONTACT WITH SAID DIELECTRIC THERMAL CONDUCTOR, AND A THIRD STRUCTURAL MEMBER ASSEMBLED TO SAID FIRST AND SECOND STRUCTURAL MEMBERS FOR COMPLETING THE ENCASEMENT OF SAID ELECTRONIC COMPONENTS, SAID SUBSTANCE HAVING A MELTING POINT BELOW THE MAXIMUM ALLOWABLE OPERATING TEMPERATURE OF SAID ELECTRONIC COMPONENTS AND SAID FIRST, SECOND AND THIRD STRUCTURAL MEMBERS BEING