Patent ID: 9181015
Filing Date: 2015-11-10
Classification: A47G,B65D,F25D

Abstract:
1. A liquid receptacle for rapidly lowering the temperature of a liquid contained therein to a warm range suitable for human contact and maintaining the liquid in the warm range for an extended period of time, the receptacle having a drinking lip at the uppermost end and a base at the lowermost end, the receptacle comprising: an inner vessel for holding a liquid, the inner vessel having an open upper end and a closed lower end with a side wall extending therebetween; a first intermediate wall having an upper end and a lower end, the first intermediate wall surrounding the inner vessel and at least partially spaced therefrom so as to define a first chamber therebetween; an insulated outer shell having an upper end and a lower end, the insulated outer shell having a second intermediate wall surrounding and spaced from the first intermediate wall so as to define a second chamber therebetween, the insulated outer shell further having an outer wall surrounding the second intermediate wall, the outer wall being at least partially spaced from the second intermediate wall so as to define an insulation chamber therebetween, the insulation chamber having a partial vacuum or an insulating material disposed therein; and a first phase change material disposed within the first chamber for regeneratively absorbing thermal energy from the liquid and then releasing the thermal energy to the liquid to maintain the temperature of the liquid.