|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||219/441 ; 219/386 ; 219/435 ; 219/521|
|발명자 / 주소|
|인용정보||피인용 횟수 : 41 인용 특허 : 0|
An improved warming container which may comprise either a cup, pot, bowl or the like, and which includes an electric heating element built into its bottom and side walls, the heating element being connected to a rechargeable battery, thermostat and switch located on its underside and which are completely enclosed so to allow the vessel being fully submerged during washing without damage to the electric system.
In a vessel incorporating a rechargeable battery heating unit; the combination of a vessel formed of dielectric material and an electric heating system integral therewith and comprising an electric circuit consisting of a heating coil, thermostat, on-off switch and rechargeable battery, said heating coil being molded in a bottom wall and in a side wall of said vessel, said thermostat, on-off switch and battery being contained within a compartment formed below said bottom wall by a removable bottom cap screwed thereon and sealed water tight by a rubber ga...