Patent ID: 8650806

Claim:
A portable expandable shelter comprising: a fixed portion comprising: a shell having a first end, a second end substantially parallel to the first end, a top, a bottom substantially parallel to the top, and a thermally insulated core comprised of a plurality of structurally insulated panels coupled to the shell with a fastener attached to the shell, extending towards an interior of the portable expandable shelter, and penetrating only an outer surface of the core such that the coupling is free of thermal transmission paths, and a movable portion interposed between the first end and the second end of the fixed portion when in a stowed state, the movable portion being movable between the stowed state and a deployed state, and the movable portion comprising: a ceiling panel extending away from the top in the deployed state, a floor panel substantially parallel to the bottom in the deployed state, a first side wall panel substantially parallel to the first end in the deployed state, a second side wall panel substantially parallel to the second end in the deployed state, and a back wall panel substantially perpendicular to the first and second ends in the deployed state, at least one panel of the movable portion comprising a structural insulated panel.