Hair dryer

DETAILED DESCRIPTION An object of the claimed invention is to provide a hair dryer having a hair-winding attachment provided with means to ensure that excessively hot air is not blown out through the air blowing holes of the hair-winding attachment.
This is accomplished by means to detect hot air in the hair-winding attachment which is approaching an excessive temperature and to vent that hot-air from the hair dryer through a hot air vent.
The hot air vent is controlled by a valve which opens when the air in the hair-winding attachment of the dryer rises to a predetermined abnormal temperature which is less than that of any excessive temperature.
The temperature-sensitive means to actuate the valve may sense temperature indirectly or directly.
An indirect temperature-sensitive valve actuating means may comprise, for example, a means in which the valve is biased in its closed position (closing the hot air vent) by a spring.
The valve is opened by air pressure sensitive means acting against the force of the spring when the air pressure within the hair dryer rises to a level associated with the predetermined abnormal temperature.
In a direct system, the valve is actuated by a solenoid or other means which includes means for directly sensing the air temperature in the hair dryer.