Patent ID: 6873792

Claim:
A portable dryer comprising: a housing with an opening at one end thereof; a motor having a fan installed inside the housing; a first heating filament coupled to the motor; a second heating filament coupled to the motor and the first heating filament; a third heating filament; a fourth heating filament coupled to the third heating filament; a switch for controlling operations of the portable dryer; and a power unit for supplying electric power; wherein the power unit is electrically disconnected from the motor and all electric heating filaments when the switch is turned to an off position, the motor is electrically connected to the first heating filament in series and then to the third heating filament in parallel when the switch is turned to a first operation position, and both the first heating filament and the second heating filament are electrically connected in parallel and electrically connected to the motor in series and then to both the third heating filament and the fourth heating filament in parallel when the switch is turned to a second operation position.