U.S. patent application number 09/957634 was filed with the patent office on 2003-03-20 for instant heat hot air curling iron.
This patent application is currently assigned to CONAIR CORPORATION. Invention is credited to Leung, Anthony Kit Lun.
Application Number | 20030052115 09/957634 |
Document ID | / |
Family ID | 25499889 |
Filed Date | 2003-03-20 |
United States Patent
Application |
20030052115 |
Kind Code |
A1 |
Leung, Anthony Kit Lun |
March 20, 2003 |
Instant heat hot air curling iron
Abstract
There is provided a hair curling device having a handle and a
barrel. The handle having grippers, an LED lens and being adapted
to house a motorized fan assembly and PCB assembly. The barrel
housing a heater that extends the entire length of the barrel and
having at least one vent therein. Heated air from the heater is
drawn through a heat sink and through the at least one vent in the
barrel. The heated air from the at least one vent facilitates in
drying and styling hair.
Inventors: |
Leung, Anthony Kit Lun;
(Hong Kong, CN) |
Correspondence
Address: |
Charles N.J. Ruggiero, Esq.
Ohlandt, Greeley, Ruuggiero & Perle, L.L.P.
10th Floor
One Landmark Square
Stamford
CT
06901-2682
US
|
Assignee: |
CONAIR CORPORATION
|
Family ID: |
25499889 |
Appl. No.: |
09/957634 |
Filed: |
September 20, 2001 |
Current U.S.
Class: |
219/222 ;
132/118; 392/384 |
Current CPC
Class: |
A45D 20/50 20130101 |
Class at
Publication: |
219/222 ;
392/384; 132/118 |
International
Class: |
A45D 020/50 |
Claims
What is claimed is
1. A hair curling device, comprising: a handle having a hollow
cavity for housing a motor, a fan and a ventilator; a heating
element; and a barrel connected to said handle and having a
plurality of apertures therein for permitting air heated by said
heating element to escape.
2. The hair curling device of claim 1, wherein said handle has at
least two control switches.
3. The hair curling device of claim 2, wherein said at least two
control switches include a first "ON" switch and a second "OFF"
switch.
4. The hair curling device of claim 1, wherein said handle has at
least one gripper.
5. The hair curling device of claim 1, wherein said handle and said
barrel are in axial alignment.
6. The hair curling device of claim 5, further comprising a
plurality of tines protruding from said barrel for engaging
hair.
7. The hair curling device of claim 1, further comprising a PCB
board housed in said handle and adapted for transferring power to
said motor, fan and heating element of the hair curling device.
8. The hair curling device of claim 1, further comprising an
insulator positioned between said handle and said barrel.
9. The hair curling device of claim 1, wherein said ventilator
partially surrounds said fan and directs air into said barrel over
said heating element.
10. The hair curling device of claim 1, wherein said heating
element is made of mica.
11. The hair curling device of claim 1, wherein said heating
element spans an entire interior portion of said barrel.
12. The hair curling device of claim 1, further comprising a
variable temperature controller for adjusting the heat produced by
the hair curling device.
13. The hair curling device of claim 1, wherein said handle has a
plurality of grippers.
14. The hair curling device of claim 1, wherein said handle has a
momentary on/off switch.
15. The hair curling device of claim 1, further comprising a
temperature sensor.
16. The hair curling device of claim 1, further comprising a
thermal cut-off mechanism.
17. The hair curling device of claim 1, wherein said handle has at
least one heat sink.
18. The hair curling device of claim 1, wherein said barrel has an
air baffle.
19. The hair curling device of claim 1, wherein said barrel has a
corresponding clip pivotably attached thereto for receiving and
holding hair close to said barrel.
20. The hair curling device of claim 19, wherein said clip has a
lever that when a user applies force to said clip moves away from
said barrel.
21. The hair curling device of claim 20, wherein said lever has a
grip.
22. A hair curling device, comprising: a handle having a hollow
cavity for housing a motor, a fan and a ventilator; and a heating
element a barrel connected to said handle and having a plurality of
apertures therein for permitting air heated by said heating element
to escape; and an insulator positioned between said handle and said
barrel.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a hair styling product. In
particular, the present invention relates to hand-held,
electrically heated devices for heating, and manipulating and/or
curling hair. More particularly, the present invention relates to a
hair curling iron device that curls hair and additionally uses hot
air to dry hair. Most particularly, the present invention relates
to hair irons, such as curling irons and brush irons, that employ a
barrel to heat hair disposed or manipulated about the barrel, and
additionally blowing hot air to simultaneously dry hair.
[0003] 2. Description of the Prior Art
[0004] Customarily, users of such styling products require clean
hair that is also dry to achieve the best styling results.
Therefore, the hair has to be washed, blown, then styled. Some
users have combined the styling with drying of hair by using a blow
dryer while simultaneously using a brush to curl. However, this is
a difficult task and is predominantly a technique performed at hair
salons. Thus, there is a growing need for hair care devices that
are convenient, portable, easily manipulated and provide
professional styling results.
[0005] Hair manipulating devices that employ an iron, i.e., a tube
or barrel, to heat and manipulate hair are well known. Such devices
include curling irons, thermal hot air irons and brush irons.
Curling irons and some brush irons employ one or more types of
heating elements in the barrel to heat the barrel. Examples of such
heating elements include a rope heater, i.e., a resistance heater
wound on a glass rope and looped inside the barrel, a resistance
wire wound on mica and held between metal springs inside the
barrel, and a ceramic heater suspended in the barrel between metal
contacts and springs. These heating elements commonly extend
through and fill the central portion of the barrel. In brush irons,
the barrel wall has holes in it and a tooth bar is disposed in the
barrel between the heating element and the barrel wall so that
teeth of the tooth bar extend through the holes. However, heating
the barrel from its central portion does not provide for rapid
initial heating of the barrel and is not fully efficient. A thermal
hot air iron drives hot air through a barrel and through holes in
the wall of the barrel.
[0006] U.S. Pat. No. 5,494,058 describes a hair curling iron that
includes an air heater and a blower disposed in the handle portion
of the curling iron. A steam generator is disposed in the barrel
that extends from the handle portion. This patent provides for the
presence of a water container located in the barrel portion so as
to enable steam to be generated from the barrel portion. The
present invention does not include a water container, yet combines
heat and air for curling and drying of hair.
[0007] U.S. Pat. No. 5,365,037 describes a hand-held electric
curling iron whose barrel is adapted to selectively join one of a
plurality of different diameter hair rollers. The handle portion
includes a fan, and the barrel portion includes a plurality of
apertures that enable heated air to be directed onto a roller
positioned about the barrel. In contrast, a hair roller does not
adapt onto the present device, but rather directly and conveniently
styles hair using its barrel portion.
[0008] U.S. Pat. No. 4,936,027 describes a hair dryer/steamer
combination that includes a handle and a barrel portion. The handle
includes a blower and a heater for heating air. The heated air is
blown into the barrel and exits from apertures therein. The barrel
portion includes a separate heater and water reservoir to enable
steam to be produced and carried out by the air flow. The present
invention does not have a water reservoir in its barrel portion for
a steaming function. Instead, the air blown from the barrel of the
present invention is dry air for quick drying of hair while
styling.
[0009] U.S. Pat. No. 4,602,143 describes a curling iron that
includes an infrared radiation source within a hollow barrel. The
barrel is substantially transparent to the IR radiation. The handle
portion includes a fan for blowing air over the IR radiation source
and out of apertures located at the distal end of the barrel. The
present invention does not have an infrared radiation source for
heated air.
[0010] The present invention provides an improved device that not
only has a hot barrel for styling hair, but also simultaneously
blows hot air to dry hair.
SUMMARY OF THE INVENTION
[0011] It is an object of the present invention to provide a device
for curling hair.
[0012] It is another object of the present invention to provide a
device for curling hair having a heater therein.
[0013] It is a further object of the present invention to provide a
hair curling device that substantially dries hair by using hot
air.
[0014] It is still a further object of the present invention to
provide a hair curling device that provides both high temperature
and heated air.
[0015] These and other objects and advantages of the present
invention are achieved by a hair curling device comprising: a
handle, a barrel or barrel portion having a cavity and having a
heatable surface with one or more vents to release the heat from
the barrel, a heater extending through the cavity of the barrel,
and a convector to direct heat from the heater through the vents of
the barrel portion. The handle has an interior for receipt of a fan
that blows hot air toward the barrel.
BRIEF DESCRIPTION OF THE DRAWINGS
[0016] FIG. 1 is a plan view of the hair curling device of the
present invention;
[0017] FIG. 2 is a cross-sectional view of the hair curling device
of FIG. 1;
[0018] FIG. 3 is an end view of the device of FIG. 2;
[0019] FIG. 4 is a plan view opposite that of FIG. 1 of the device
of FIG. 1;
[0020] FIG. 5 is a cross-sectional view taken along lines A-A of
FIG. 2; and
[0021] FIG. 6 is an exploded view of a preferred embodiment of the
invention.
DETAILED DESCRIPTION OF THE INVENTION
[0022] Referring to the figures and, in particular, FIG. 1, the
hair curling and drying device of the present invention is
generally represented by reference numeral 1. The hair curling
device 1 has a body 200 that includes a handle 100 and a barrel or
barrel portion 300 secured to the handle. Preferably, handle 100
and barrel portion 300 are in axial alignment. Grippers 101 are
provided on handle 100 for secure holding of device 1. Handle 100
also preferably has an LED lens or display 107 to advise a user
when power is turned on, and a variable resistor knob 115 to vary
the temperature of the device 1.
[0023] Referring to FIG. 2, handle 100 is connected to a power
source, such as an electrical outlet, via a power cord with bushing
125. Handle 100 has a swivel board 111 to permit rotation of power
cord 125. Handle 100 preferably also has a PCB assembly 109 that is
operatively connected to and transmits power from power cord 125 to
components of curling device 1. This connection includes a
self-tapping screw 123 holding PCB assembly 109 in place. Handle
100 preferably also has a first switch 103 and a second switch 105.
First switch 103 preferably is an "ON" switch, and second switch
105 preferably is an "OFF" switch. First switch 103 and second
switch 105 preferably are also each connected to PCB assembly
109.
[0024] Handle 100 preferably has a hollow or cavity that houses a
fan 117. Fan 117 is preferably connected to a drive shaft (not
shown) of a motor 121 and adapted to rotate about a central
longitudinal axis 102 in response to motor 121. A motor mount 119,
partially surrounding fan 117, preferably functions as a ventilator
to direct air into barrel portion 300. Also preferably, PCB
assembly 109 has a variable resistor cap 113, which works in
conjunction with a variable resistor knob 115 to control the amount
electric current running through a heater or heatable element
216.
[0025] Barrel portion 300 houses heater 216. Heater 216 spans the
entire interior portion of barrel portion 300. Heater 216 is
connected by lead wire 204 to PCB assembly 109. Heater 216
preferably is made of mica.
[0026] Handle 100 is preferably substantially hollow and has an
upper part 110 and a lower part 120 shown in FIG. 4. Both upper
part 110 and lower part 120 preferably have protuberances or rows
of grippers 101 to facilitate gripping of handle 100 by a user as
shown in FIGS. 1 and 4. It should be understood that any known
mechanism for facilitating handling of the device by a user can be
used, such as, for example, grooves and crevices, as grippers.
[0027] Barrel portion 300 is secured to handle 100 by any suitable
known means, but preferably using one or more machine screws 201.
An insulator 202 is preferably positioned between barrel portion
300 and handle 100 to prevent heat from escaping from either
component. In one embodiment of the invention shown in FIG. 3,
barrel portion 300 preferably has a series of tines or teeth 308
that protrude, preferably evenly, from the barrel and are adapted
to distribute hair.
[0028] As shown in FIG. 5, heater 216 in barrel portion 300 is
preferably rectangular in cross-section and positioned in a heat
sink 208. The heat from heater 216 is drawn to heat sink 208 and,
preferably, via heat air apertures 307, to the exterior of barrel
portion 300 for styling hair. Apertures 307 can be apertures or
vents through the wall of barrel portion 300 that allow heat to be
emitted from the interior of the barrel to the exterior of the
barrel and ultimately to the hair of a user.
[0029] The benefit of the present curling device 1 is the
following. A typical air brush curling iron has temperatures that
are below 100.degree. C. This temperature range is considered low.
With the present curling device 1, high temperatures, namely
temperatures at around 150.degree. C. can be achieved. These high
and/or higher temperatures help to improve the curl. The present
curling device 1 has the benefit of heated air, which facilitates
drying damp hair. These and related benefits associated with the
present invention can be achieved with heater 216, fan 117 and
ventilator 119 being operatively arranged within handle 100.
[0030] FIG. 6 is an exploded view of one embodiment of the present
invention. This embodiment includes a spoon or clip 303 with thumb
grip 301, instead of tines, to secure hair. Also from this
perspective, additional internal parts are identified. In handle
100, the handle housing shows upper part 110 of handle 100 as a
separate section that connects to the lower part 120 of the handle.
The upper part of this embodiment shows separate "On" and "Off"
switches (103 and 105 respectively), and includes grippers 101 for
better handling of the curling iron.
[0031] A variable temperature controller 115 allows the user to
adjust the heat setting of the curling iron. Features such as the
following are found within the upper and lower halves of the
handle: PCB assembly 109, swivel board 111, variable resistor cap
113, fan 117, motor mount 119 and motor 121. Self-tapping screws
123 are used to connect upper part 110 and lower part 120 together.
Lower part 120 preferably has a fan control or momentary on/off
switch 122 for controlling fan 117. Power cord 125 includes an
immersion protection 127 as a safety feature.
[0032] Heater 216 preferably includes an insulator 202, a lead wire
204, at least one heat sink 208, a heater winding 212, a motor
dropping winding 214 and an insulating film 220, and preferably
Kapton insulation. Heater 216 is also preferably adapted with a
suitable temperature cut-off safety mechanism. The cut-off safety
mechanism can be any mechanism known in the art. For example,
heater 216 can be adapted with a sensor 206, and a fuse or thermal
cut-off 218. Sensor 206 is preferably a sensor bead (NTC) and
adapted to monitor changes in temperature. Thermal cut-off 218 is
preferably adapted to break the flow of electrical current at a
predetermined temperature and thus, shut down device 1.
[0033] Barrel portion 300 can have a clip or spoon structure 303
attached thereto for receiving and holding a lock of hair. Spoon
303 can be adapted with a lever arm having a thumb grip 301 as
mentioned above. Barrel portion 300 preferably has an air baffle
213 adjacent insulator 202. Baffle 213 facilitates in the
distribution of air through barrel portion 300. Barrel portion 300,
preferably also has a cool tip 309 for easy handling and a screw
cap 311 to fasten the tip 309 onto the barrel.
[0034] It should be understood that the foregoing description is
only illustrative of the present invention. Various alternatives
and modifications can be devised by those skilled in the art
without departing from the present invention. Accordingly, the
present invention is intended to embrace all such alternative
modifications and variances.
* * * * *