(under subclass 5) Boxes made from wall structure comprising mutually conforming inner and outer wall elements entirely spaced from one another to inhibit transfer of a temperature condition there past into the contents space.
(1) Note. The temperature barrier space may be void or may be packed with insulation material or panels. Thus, the requirement for this subclass is met by structure consisting of outer wall elements, an intervening lining, and an innermost wall or lining construction.
(2) Note. The inner wall structure may be removable as a unit, in which case it is distinguishable from mere removable receptacle structure by the requirement that the removal involves an act of disconnecting some element; as opposed to mere lifting from the box, involving nothing more than the possible displacement of a closure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
4, for a tank comprising walls defining an insulating space for the contents of the tank.
SEE OR SEARCH CLASS
220, Receptacles, 560.12+, 592.09+, 592.2+ for a receptacle having a thermally insulated wall.
312, Supports: Cabinet Structure,
214, for a cabinet including spaced or insulating wall structure.
