Multiply-insulated assemblies

A multiply-insulated article, comprising:

• a first container, the first container comprising a first wall enclosing an interior volume;
• a second wall enclosing the first wall and the second wall being spaced at a distance from the first wall to define an insulating space therebetween;
• and a vent communicating with the insulating space to provide an exit pathway for gas molecules from the space, the vent being sealable for maintaining a vacuum within the insulating space following evacuation of gas molecules through the vent, the distance between the first and second walls being variable in a portion of the insulating space adjacent the vent such that gas molecules within the insulating space are directed towards the vent by the variable-distance portion of the first and second walls during the evacuation of the insulating space,
• the first container defining a proximal end and a distal end and defining an interior volume opening at the proximal end,
• the vent of the first container opening in the direction of a proximal end of the first container;
• and
• a second container, the second container comprising a first wall enclosing an interior volume;
• a second wall enclosing the first wall and the second wall being spaced at a distance from the first wall to define an insulating space therebetween;
• and a vent communicating with the insulating space to provide an exit pathway for gas molecules from the space, the vent being sealable for maintaining a vacuum within the insulating space following evacuation of gas molecules through the vent, the distance between the first and second walls being variable in a portion of the insulating space adjacent the vent such that gas molecules within the insulating space are directed towards the vent by the variable-distance portion of the first and second walls during the evacuation of the insulating space,
• the second container defining a proximal end and a distal end and defining an interior volume opening at the proximal end,
• the vent of the second container opening in the direction of the proximal end of the second container,
• the first container being disposed within the second container such that the proximal end of the first container and the proximal end of the second container open in the same direction, and
• the first container being disposed within the second container such that the first and second containers define a spacing therebetween.