| 摘要 |
PURPOSE: A vacuum cup is provided to improve good tastes and flavors produced in beverages by maintaining the setting temperature of the beverages in the cup and by forming the cup with double structure. CONSTITUTION: A vacuum cup comprises a heating device(4), a power lamp(5), and a control switch(6). The heating device generates heat by electric resistance and is formed to a spiral shape on the top of a supporting stand(2) on which the cup is put. The power lamp confirms an operation state of the heating device. The control switch controls temperature and operation of the heating device. |
