Drying and gas or vapor contact with solids – Apparatus – For hair on head
Reexamination Certificate
1999-03-29
2002-05-21
Wilson, Pamela A. (Department: 3744)
Drying and gas or vapor contact with solids
Apparatus
For hair on head
C392S385000, C219S222000
Reexamination Certificate
active
06389710
ABSTRACT:
BACKGROUND OF THE INVENTION
(a) Field of the Invention
The present invention relates to a hair drier and in particular, to an improved structure of an infrared hair drier having a ceramic heat emitting element enclosed by a pair of fixing frame.
(b) Description of the Prior Art
Conventional hair driers have substantially similar design as that shown in
FIG. 4
, which comprises a body
30
, an air-outlet
31
at one end of the body
30
, an air-inlet
33
provided at the other end of the body
30
, and being mounted with a filter cap
32
, and a motor
34
having a fan
35
to provide an air stream. The stream of air is released via the air outlet
31
. A heat emitting device
36
formed from a resistance coil is provided adjacent to the air-outlet
31
. The heat emission device
36
is operated by a control switch
38
mounted on a handle
37
located below the body
30
. The speed of the air steam and the selection of cold/hot air stream is selected by pressing the control switch
38
.
The drawback of the conventional hair drier is that it is a high heat energy consuming product, and no temperature control is available to control the temperature of the emitted heat. In other words, the simple heat emission coil does not provide a constant temperature. The temperature is varied in accordance with the speed of the fan. At a lower speed, the temperature of air is usually too hot.
Another disadvantage is that the shape and material of the air outlet
3
are often deformed as a result of excessive heat from the hot air.
In view of the above, the conventional hair drier is not safe after a period of use.
SUMMARY OF THE PRESENT INVENTION
Accordingly, it is an object of the present invention to provide an improved structure of an infrared hair drier having a front barrel and a rear barrel mounted with a grille defining the main body of the hair drier, characterized in that the main body is substantially a conic shape enclosing a tapered inner barrel of a smooth surface for air-directing, a first fixing frame having a tapered shape being formed by two vertical boards mounted across each other and is mounted within the inner barrel, the larger end of the fixing frame is provided with a recess for the adaption of a conductive metal rim, a second fixing frame, together with the first fixing frame, is used to enclose a heat emitting element, a motor for a fan is mounted to the external edge of the second fixing frame to provide air from an air-inlet when the motor is turned on, and the rear barrel is connected to the front barrel and forms the hair drier.
Another object of the present invention is to provide an improved structure of an infrared hair drier, wherein the heat emitting element is designed into a beehive shape which provides rapid heat transfer, and the heat emitted from the ceramic material provides a temperature which is controllable and thus the hair drier is a safety electrical appliance.
It is another object of the present invention is to provide an improved structure of an infrared hair drier, wherein the temperature of the emitted heat is consistent and can be easily controlled, and the cost of manufacturing is lower but the safety of the hair drier is upgraded.
It is yet another object of the present invention to provide an improved structure of an infrared hair drier, wherein the application of the ceramic material as the heat emitting element allows convenient mounting and the hot air thus produced is comfortably used to dry hairs.
REFERENCES:
patent: 4382174 (1983-05-01), Barns
patent: 4910382 (1990-03-01), Kakuya et al.
A & J
Wilson Pamela A.
Yin Yen Co., Ltd.
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