Abstract: A hairdryer includes a casing having a main body having a main through cavity containing an electric motor and a fan to generate an air flow with a settled speed; an inner diffuser inside the main through cavity at the front outlet opening of main body and includes a through cavity having a passage section decreasing towards the front outlet opening to increase the speed of the air flow; the main body includes at least one side opening at the front outlet opening to enable air from outside entering into the main through cavity to increase an air output flow rate from the front outlet opening; an outer outlet element is reversibly coupled to the front outlet opening and includes an outflow tubular portion and a coupling tubular portion inserted into the front outlet opening to close the side opening and prevent the air from entering the main through cavity.

Abstract: A heating plate for a hair straightening iron and a method for its manufacture are provided. The heating plate consists of a case comprising two laminates made of insulating ceramic material; one of them holds a band made of electrical conductor material with outer connections, while one of the laminates has a surface coated with a polished layer of material; the case of the heating plate has features to adapt to the base structure of the iron. The manufacturing process comprises: 1) preparing a ceramic powder which comprises the milling of dispersants and adding solvents, mixing with a binding agent and adding plasticizer to control viscosity of the result, 2) moulding and corresponding drying; 3) cuffing plates and screen-printing the resistor; 4) laminating the whole by pressure and cutting; 5) burning the binding agent and sintering; and 6) welding contact terminals, and coating with a polished layer.

Abstract: A halogen hair dryer, which is characterized in that the halogen tube with “U” form, provided with a carbon filament, is mounted within the spaces in dihedral angle opposed by the central vertex and delimited by both of the orthogonally crossed plates which exist in the holder made of non-flammable dielectric material which houses the heating resistor; said halogen tube is arranged so that its arms are parallel to the central axis of the holder and are placed under the spiral layer that forms the heating resistor wound around the notched edges of the holder.

Abstract: The heating plate for hair straightening iron and its manufacturing process consists of a case comprising two laminates made of insulating ceramic material; one of them holds a band made of electrical conductor material with outer connections, while one of the laminates has a surface coated with a polished layer of material; the case of the heating plate has features to adapt to the base structure of the iron.

Abstract: The hair straightening iron with ionic treatment consists of a pair of arms which articulate in one of their ends and that have, on the opposite end, a pair of plates or lever electrically heated. Said plates are coated with a ceramic crystal material; in one of said arms there is a point which coincides with a hole in the other arm, where there is a mechanical switch for an ionizing circuit, and the outlet of the negative ions produced by it is located in an adjacent position to one of said plates slightly higher than its surface. The ionizing circuit involves a circuit of electric supply composed by a resistor, an indicator diode “LED” and a rectifier diode, electrically bound to a mechanical switch which is connected to a resistor and a parallel composed by a rectifier diode and an indicator diode “LED”, followed by a capacitor in serial form and the whole is connected to the ionizing block.

Abstract: The dryer includes in its programmable control circuit a microprocessor to which are connected at least a temperature sensor, a static pressure sensor, a motor revolution sensor, a ion generator, a resistor battery with its selector switches in series, and the respective power circuits of the motor and the air heater aforesaid, in which, in order to optimize the processing route, said microprocessor, after the dryer is turned on and the operating values of parameters, establishes the initial operating configuration at 50% of the value thereof, and then defines continuously, in terms of the ordinary data base, the constant functional conditions, and responds to electric, thermal and mechanical discrepancies being involved with its corrective stabilization, recording, signaling and information by means of a display.