Abstract: A box constituting heat insulating walls of a refrigerator or freezer cabinet, wherein the walls are formed by an inner shell of metal, an outer shell of metal, and an evacuated heat insulation between the shells. The shells provide edges which surround a rectangular access opening to the box and which are folded towards each other so that they form planar surfaces located in substantially the same plane. The planar surfaces are gas-imperviously connected to each other by a thin metal strip having poor heat conductivity. The strip is soldered to the planar surfaces.

Abstract: A liquid accumulator comprises a generally cylindrical receptacle (10) having a flexible membrane (14) dividing the interior of the receptacle into a liquid chamber (15) and a gas chamber (17). The membrane comprises a hose which is open at both ends, one of which is bent inwards and conveyed through the hose and the ends of the hose are interconnected to form outer and inner membrane walls between which said liquid chamber is enclosed.