Abstract: An electric stepper motor having increased motor torque includes a thru-hole, a rotor and a stator. The thru-hole allows use with a chamber and provides transport of hardware and elements into the chamber. A first and second pair of rotor cups separated by a non-magnetic spacer disc provide increased motor torque.

Abstract: An electric stepper motor includes a thru-hole, a rotor and a stator. The rotor consists of a pair of hollow magnetic metal flange-shaped laminations arranged within a hollow magnetic sleeve. The motor can be field-converted from rotary to lineal translation by attachment of a threaded nut to the motor shaft mounting face. The thru-hole allows use with a chamber and provides transport of hardware and elements into the chamber.

Abstract: A curling iron system which, in addition to conventional mechanical elements of base, curling irons, ovens, holders and the like, utilizes an accurate temperature measurement and display capability adapted for use by salon personnel without sophisticated technical know-how. The temperature measurement is implemented by a thermocouple and the display is implemented using a plurality of light emitting diodes (LEDs) connected to the thermocouple by a thermocouple amplifier and a display driver. The combination of thermocouple, LED display and intermediate electronics, operates to provide an accurate indication of the actual surface temperature of the curling iron and thus assure that the iron will be precisely the appropriate temperature for curling or straightening the particular thickness hair being serviced. In the preferred embodiment disclosed herein, the thermocouple is mounted on a platform adjacent the oven and the display is positioned on a vertically oriented member behind the thermocouple platform.