Patent ID: 6634417
Filing Date: 2003-10-21
Classification: A47G,A47J,B65D,C09K,F28D,H03F,Y02E,Y10S

Abstract:
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, said receptacle comprising:an inner vessel having an open upper end and closed lower end and a wall connecting said upper end and said lower end said wall having an outward taper such that said upper end has a width greater than a width of said lower end; an insulated outer shell spaced from said inner vessel defining an interstitial chamber therebetween, said outer shell having an outer wall and an inner surface spaced from the outer wall with a foam insulating layer disposed between said inner surface and outer wall, said foam layer having an inner surface defining at least a portion of said inner surface of said outer shell; and a phase change material disposed within said 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.