Temperature limiting circuit for electric hair dryers

Claim 1

In a hairdryer of the type including a casing having an air inlet and an air exit defining an exit plane, a motor driven fan for propelling air between said air inlet and said air exit, a heater box in said casing, said heater box including an exit opening, plural wattage heating elements comprising high and low wattage heating elements in electrical circuit disposed in said heater box for heating air to selected temperature for discharge through the air exit of said casing and thermostat means in said airstream downstream of said heating elements for sensing the air temperature and opening the electrical circuit to at least some of said heating elements upon sensing an over temperature condition, the improvement comprising: said thermostat means being positioned across the entire exit plane of said casing and disposed substantially in said exit plane of said casing and in electrical series circuit with at least some of said heating elements.