초록 ▼

Portable container comprising an inner cup to contain food or drink and an outer cup to be filled with heat exchange medium so as to keep food or drink contained in the inner cup warm or cool, or to be warmed or cooled when said cups are engaged with each other. Said inner cup is naturally made of a

Portable container comprising an inner cup to contain food or drink and an outer cup to be filled with heat exchange medium so as to keep food or drink contained in the inner cup warm or cool, or to be warmed or cooled when said cups are engaged with each other. Said inner cup is naturally made of a material having good thermal conductivity at least in the bottom and a part of the circumferential wall thereof, while the outer cup and the remainder part of the inner cup is preferably made of thermally insulating material.

대표청구항 ▼

A portable container comprising; an inner cup having a thermally conductive bottom portion to contain food or drink therein, and an outer cup of thermally insulative material to be filled with a heat exchange medium, said two cups being adapted to be engaged with each other so that said bottom porti

A portable container comprising; an inner cup having a thermally conductive bottom portion to contain food or drink therein, and an outer cup of thermally insulative material to be filled with a heat exchange medium, said two cups being adapted to be engaged with each other so that said bottom portion of said inner cup may be dipped in said exchange medium; said inner cup has external threads and said outer cup has internal threads so that said outer cup threadedly engaged with said inner cup to completely receive said inner cup therein may engage with the external threads of said thermos with a remainder portion of said internal threads, and the assembly of the engaged inner and outer cups are engaged with a thermos in the inverse position.