Process for treatment of an object using a flow of hot air and hand-held air blower for carrying out this process
AssigneeWella Aktiengesellschaft
InventorWerner Fertig
Life of this patent
Estimating the term…
Abstract
In a process for treating an object by a hot-air flow directed on the object by a hand-held air blower which is provided with a heating device and a fan, the heating device is controlled proportionally as a function of distance. The hand-held air blower has a distance detecting device for carrying out the process. The distance detecting device has an output for determined measured distance values. Proportional control signals for controlling the output control device are formed by a comparison device from the measured distance values and from a given temperature value of a temperature selector.
Claims23
A process for treating an object by a hot air flow directed on the object by a hand-held air blower provided with a heating device and a fan, comprising the steps of determining a distance between the air blower and the object;
- and controlling the heating device proportionally as the function of the thusly determined distance so that a given temperature of hot air flow on the object remains constant substantially independent from the distance between the air blower and the object.
A hand-held air blower, comprising a heating device;
- a fan connected with said heating device for treating an object by a hot air, flow directed on the object;
- a distance detecting device providing measured distance values of a distance between the air blower and the object;
- and a control device for controlling said heating device proportionally to the measured distance values so that a given temperature of a hot air flow on the object remains constant substantially independent from the distance between the air blower and the object.
A hand-held air blower, comprising a heating device;
- a fan connected with said heating device for treating an object by a hot air flow directed on the object;
- a distance detecting device providing measured distance values of a distance between the air blower and the object;
- and a control device for controlling said heating device proportionally to the measured distance values, said control device including a temperature selector having a given temperature value, a comparison device forming proportional control signals from the measured distance values and from the given temperature value of said temperature selector, and an output control device which is controlled by said proportional control signals.
A hand-held air blower, comprising a heating device;
- a fan connected with said heating device for treating an object by a hot air flow directed on the object;
- a distance detecting device providing measured distance values of a distance between the air blower and the object;
- a control device for controlling said heating device proportionally to the measured distance values;
- and a time delay device via which a power of the blower is cut off when the object is not found within the detection range of said distance detecting device within an allowed period of time.
Dependencies are inferred from the claim text.