Title of Invention

A MICROWAVE OVEN AND UPPER DUCT THEREOF

Abstract A microwave oven includes a cavity (130) in which food is loaded and an upper duct (200) mounted detachably in the cavity (130), and an inclined portion (220) extending from an end of the upper duct (200) and inclined at a predetermined angle.
Full Text Technical Field
The present invention relates to a microwave oven and
an upper duct of the microwave oven, and more particularly,
to a microwave oven and an upper duct of the microwave oven,
in which the upper duct controlling airflow in a cavity is
detachably mounted in a simple structure and designed to form
an air curtain using air directed from the upper duct into
the cavity,which can prevent vapor generated in the cavity
from contacting the door, thereby preventing water drops and
steam from being formed on the door.
Background Art
Generally, a microwave oven is a device that is usedto
heat food by radiating microwave generated from a magnetron
to the food when electric current is applied to electric
components of the device.
Such a microwave oven is classified into a household
microwave oven having a small' magnetron and a commercial
microwave oven having a large (or a plurality of ) magnetron.
The microwave oven is further classified according to a
heating method into a glass tray method rotating the food and
a stirrerfan method scattering microwave radiated into the
cavity. The former is generally applied to the household
microwave oven while the latter is appliedto the commercial
microwave oven.
Since the commercial microwave oven is generally used
at convenience stores where the microwave oven is frequently
used and restaurants where a large amount of the food should
be quickly heated, the microwave oven needs relatively high
power output compared with the household microwave oven.
Meanwhile, in a prior microwave oven, an upper ductis
installed on a top of the cavity in which the food to be
heated is loaded. A glass tray for rotating the loaded food
is installed on a bottom of the cavity.
That is, - the upper duct is formed in a rectangular
shape, having exhaust holes formed on a distal end to exhaust
air in the cavity to an external side and blowing holes
formed on a proximal end in front of the cavity to direct
outer air into the cavity.
The upper duct is installed on a top of the cavity with
a space defined there between. A stirrer fan is mounted in
the space. Air intake holes are formed on a right wall of the
cavity. Hence, the air introduced through the air intake
holes flows along the upper duct and is then directed into
the cavity through the blowing holes.
A process for installing the prior upper duct on the
top of the cavity will be described hereinafter.
A plurality., of coupling holes are formed on front and
rear portions of the cavity top. A plurality of through holes
corresponding to the coupling holes are provided on the front
and rear portions of the upper duct. The upper duct is
closely disposed on the cavity top such that the coupling
holes can be aligned with the through holes. Coupling members
such as screws are inserted through the aligned coupling and
through holes to fix the upper duct on the cavity top.
After the above, the stirrer fan is mounted in the
•space defined between the cavity top and the upper duct. The
stirrer fan is rotated by a synchronous motor to scatter the
microwave radiated into the cavity.
However, the prior upper duct has problems asfollows:
1. In order to mount or. dismount the upper duct on the
cavity top, a worker bends down to screw the screws into the
coupling and through holes. It is troublesome for the worker
to bend down. Particularly, since the through holes of the
upper duct are not exposed frontward, it is not easy to screw
the screws in the holes.
2. Since many screws are coupled to the holes, the
assembling process is complicated, being time-consuming.
3. Since many screws are used, the manufacturing cost
of the microwave oven is increased.
4. When the food loaded in the cavity is heated by the
microwave, the water contained in the food is vaporized to
generate steam. When the steam contacts the door, a door
glass of the door is clouded up by the steam, thereby making
it difficult for a user to see the cooking state of the food
loaded in the cavity.
5. When the operation of the microwave oven is stopped
and the temperature of the door is reduced, the steam
contacting the door is phase-changed into water -drops. The
water drops flows down, thereby making the front bottom of
the cavity become dirty.
Disclosure of the Invention
Technical Problem
Accordingly, the present invention is directed to a
microwave oven and an. upper duct of the microwave oven that
substantially obviate one or more of the problems due to
limitations and disadvantages of the related art.
An object of the present invention is to provide an
upper duct of a microwave oven, which can be assembled on a
cavity top of the microwave oven through a simple assembling
process.
Another object of the present invention is to provide
an upper duct of a microwave oven, which can reduce the
manufacturing costs by reducing the number of parts required
to be assembled on a cavity top of the microwave oven.
Still another object of the present invention is to
provide an upper duct of a microwave oven, which can prevent
vapor generated in a cavity of the microwave oven from
contacting a door, thereby preventing water drops and
moisture from being formed on the door.
Additional features and advantages of the
invention will be set forth in the description which follows,
and in part will be apparent from the description, or may be
learned by practice of the invention. The objectives and
other advantages of the invention will be realized and
attained by the structure particularly pointed out in the
written description and claims thereof as well as the
appended drawings.
Technical Solution
To achieve these and other advantages and in
accordance with the purpose of the present invention, as
embodied and broadly described, there is provided a
microwave oven comprising: a cavity in which food is loaded;
and an upper duct having a main body mounted in the cavity, a
duct fixing member formed on a side of the main body and
fixed on a wall of the., cavity, - and an inclined portion
extending from an end of the main body and inclined at a
predetermined angle.
According to another aspect of the present invention,
there is provided a microwave oven comprising: a cavity
defining a food heating space; a door for opening and
closing a front wall of the cavity; and an upper duct
including a main body mounted in the cavity and an air
curtain forming unit for preventing steam generated in the
course of heating the food from contacting the door.
According to still another aspect of the present
invention, there is an upper duct of a microwave oven,
comprising: a duct main body detachably mounted in a cavity
of the microwave oven; a duct fixing member for fixing the
duct main body on the cavity, the duct fixing member
including a hook step formed on a front portion of the duct
main body and a fixing projection formed on a rear portion
of the duct main body; an inclined portion extending from a
front end of the duct main body at a predetermined inclined
angle; and an air curtain forming unit formed on an end of
the duct main body, the air curtain forming unit including
an air-guide hole through which outer air is directed into
the cavity and an air-guide for directing the air from the
air-guide hole rearward of the cavity, the air-guide having a
-shaped section.
According to still yet another aspect of the present
invention, there is provided an upper duct of a microwave
oven having a cavity and a door for opening and closing an
opening of the cavity, the upper duct comprising: a duct
main body mounted on a top of the cavity; a duct fixing
portion formed on a flange portion of the duct main body; and
an air curtain forming unit formed on an end of the duct
main body to prevent water drops from forming on the door,
wherein the upper duct is mounted by inserting a hook step
in a front wall of the cavity after inserting a fixing
projection in a rear wall of the cavity and is dismounted by
removing the fixing projection from the rear wall' of the
cavity after the hook step is removed from the front wall of
the cavity.
Advantageous Effects
According to the present invention, it is easy for the
worker to mount an upper duct on a cavity top.
In addition, the mounting time of the upper duct on
the cavity top can be saved.
Since special coupling members are not required, the
manufacturing costs can be saved.
Since steam generated from the food in the cavity
cannot contact the door by the air curtain directed from the
upper duct into the cavity, the door is not clouded and the
water drops are not formed on the dopr.
Since the door is not clouded, the user can easily
object the cooking state of the food.
Since the steam does not contact the door, no water
drop phase-changed from the steam is formed on the door,
thereby preventing the cavity bottom from becoming dirty.
That is, the microwave oven can be maintained in a
clean state.
Brief Description of the Accompanying Drawings
The accompanying drawings, which are included to
provide a further understanding of the invention and are
incorporated in and constitute a part of this specification,
illustrate embodiments of the invention and together with the
description serve to explain the principles of the invention.
In the drawings:
Fig. 1 is an outer perspective view of a microwaveoven
with an upper duct according to the present invention;
Fig. 2 is an inner perspective view of a microwave oven
with an upper duct according to the present invention;
;... Fig. 3 is a perspective view., of a bottom of an upper
duct according to an embodiment of the present invention; and
Fig. 4 is a perspective view of an air guide portion of
an upper duct according to an embodiment of the present
invention.
Best Mode
Reference will now be made in detailed to thepreferred
embodiment of the present invention, examples of which
areillustrated in the accompanying drawings. It will be
apparent to those in theart that various modification and
variations can be made in the presentinvention. Thus, it is
intended that the present invention covers themodification
and variations of this invention provided they come within
thescope of the appended claims and their equivalents.
Fig. 1 shows an outer appearance of a microwave oven
with an upper duct according to an embodiment of the present
invention.
Referring to Fig. 1, the inventive microwave oven 100
includes an outer case 110 defining an outer appearance, an
electric component chamber 140 protected by the outer case
110 and receiving a plurality of electric components, a
cavity 130 in which food to be heated is loaded, anupper duct
200 (see Fig. 2) mounted on a top of the cavity 130 and a
door 120 installed on a front portion of the cavity 130.
That is, the outer case 110 functions to define the
outer appearance of the microwave oven and to protect the
cavity 130 installed the rein. Accordingly, it is preferable
that the outer case 110 is formed of a steel plate having
predetermined strength.
The outer case 110 is installed around the cavity 130,
including an upper cover 111 covering the top and both sides
of the cavity 130, a base cover 114 covering a bottom of the
cavity 130, a front cover defining a front portion of the
cavity 130, and a back cover 113 protecting a rear portion of
the cavity 130. The door 120 is mounted on the front portion
of the front cover 112. Provided on a side portion of the
door 120 is a control panel 170 for inputting operation
conditions of the microwave oven 100.
In addition, the cavity 130 is a space in which food is
heated, which is formed in a rectangular box shape having a
front opening. The food is loaded and uploaded in and from
the cavity 130 through the front opening. The front opening
is closed and opened by the door 120.
The cavity 130 is defined by assembling top, left,
right (see Fig. 2), bottom, and rear plates 181, 183, 184,
182, and 185. A waveguide for direction microwave generated
by a magnetron into the cavity 130 is mounted on an outer
circumference of the upper plate 181. A synchronousmotor 160
for driving a stirrer fan is mounted on a side of the
waveguide 150. The stirrer fan is mounted between the upper
plate 181 and the upper duct 200 (see Fig. 2) mounted under
the upper plate 181.
The waveguide 150 is installed on an outer lower
portion of the cavity 130 as well as the outer upper portion
of the cavity, thereby radiating the microwave upward and
downward in the cavity 130.
The electric component chamber 14 0 is a space defined
on an inner side of the outer case 110 at left or right side
of the cavity 130 to receive a plurality of electric
components driving the microwave oven 100.
Disposed in the electric component chamber 30 are a
magnetron 14 6 for generating the microwave, a transformer 142
boosting voltage and applying the same to the magnetron 14 6,
a blower'fan 144 for cooling down electric components heated
during the generation of the microwave, and a capacitor 141
charging electric charges being applied to the transformer.
The electric component chamber is divided into two
sections by a vertical barrier 14 3 by which the transformer
142 and the blower fan 14 4 are isolated from each other. The
transformer 142, the blower fan 144, the capacitor 141 and
the vertical barrier 143 are fixed on a top of a sub-plate
145 that is installed above the base cover 114.
That is, the transformer 142 and the magnetron 14 6
function to generate the microwave radiated into the cavity
130, in the course of which the electric components are
heated to increase an interior temperature of the electric
component chamber 130 during heating the food.
In order to cool down the heated electric components,
outer air is introduced into the electric component chamber
130 by the blower fan 144.
The operation of the above-described microwave oven 100
will be described hereinafter.
After loading the food into the cavity 130 and closing
the door 120, the user inputs an operation time and a heating
mode using the control panel 130. Then, when the start button
is turned on, electric power is applied to the electric
components installed in the electric component chamber 140 to
generate the microwave from the magnetron 14 6. The generated
microwave is directed into the cavity 130 through the
waveguide 150. The microwave directed into the cavity 130 is
diffused and reflected by the rotation of the stirrer fan
mounted on the upper and lower portions of the cavity 130 to
uniformly heat the food loaded in the cavity 130.
Fig. 2 shows an inner perspective view of the microwave
oven with the upper duct according to the present invention
and Fig. 3 shows a perspective view of a bottom of an upper
duct according to an embodiment of the present invention.
Referring to Figs. 2 and 3, the upper duct 200 is
mounted on the top plate 181 defining the top of the cavity
130.
That is, the upper duct 200 includes a rectangular main
body 210 and an inclined portion formed at a front portion of
the main body 210 and inclined upward at a predetermined
angle. The upper duct 200 further includes one or more air
exhaust holes 211 formed on a rear portion of the main body
210 to exhaust high temperature air to an external side, one
ormore longitudinal air blowing holes 421, and grasping holes
260 the user can grasp to mount and dismount the upper duct
200.
The upper duct 200 further includes air-guide holes 230
formed between the main body 210 and the inclined portion 220
to direct air from the external side into the cavity and air-
guides 240 for directing air rearward in the cavity 130.
In addition, the cavity 130 is provided at a right wall
with an air intake hole (not shown) through which air can be
directed from the electric component chamber 130 toward the
cavity 130. The cavity 130 is provided at a top with one or
more air exhaust hole (not shown) corresponding to the air
exhaust hole 211 so that the air exhausted through the air
exhaust hole 211 can be exhausted out of the cavity 130.
The air introduced through the air intake hole of the
cavity 130 is directed to a space defined between the upper
plate 181 and the upper duct 200. Accordingly, the air
introduced through the air intake hole of the cavity 130 is
guided by the upper duct 100 and then directed into the
cavity by a stirrer fan (not shown) disposed between the top
of the cavity 130 and the upper duct 200.
The main body 210 is provided at a rear end with one or
more fixing projections 270 and the inclined potion 220 is
provided at a front end with a hook step 250. The exhaust
holes 211 is inclined at a predetermined angle to prevent the
air exhausted through the exhaust hole 211 from flowing
backward.
The blowing holes 221 are formed along the inclined
portion 220 to direct the air introduced through the air
intake hole of the cavity 130 into the cavity 130 when the
upper duct 200 is mounted on the top of the cavity 130. At
this point, the air being directed into the cavity 130 is
directly directed to a surface where the front portion of the
cavity 130 contacts the doorl20.
The grasping holes 160 formed between the blowing holes
221 are provided to make it easy to mount or dismount the
upper duct 100. Preferably, the grasping holes 160 are formed
on left and right portions of the inclined portion 220. The
air-guide holes 230 are arranged from a left end of the upper
duct 200 to a right end of the upper duct 200. Each of the
air-guide holes 230 is formed in a rectangular shape to
vertically penetrate the upper duct 200. The air-guides 230
are formed around the respective guide holes 230 so as to
guide the direction of the air directed from the air-guide
holes 230.
Meanwhile, the stirrer fan installed between the upper
duct 200 and the top of the cavity 130 functions to scatter
the microwave radiated into the cavity 130. Hence, the
scattered microwave is directed into the cavity 130 after
permeating the upper duct 100. In order to allow the
microwave to permeate the upper duct 100, the upper duct 200
is preferably formed of synthetic resin.
That is, the upper duct 200 is manufactured through an
injection molding process .using the synthetic resin material.
At this point, the mold for forming the upper duct 20 0 is
manufactured to form the fixing projections 270, the hook
steps 250 and the grasping holes 260.
The air flow in a state where the upper duct 200 is
mounted on the cavity 130 will be described hereinafter.
As described above, the air intake holes are formed .on
the right wall of the cavity 130 to direct the air from the
electric component chamber 140 to the space defined between
the top of the cavity 130 and the upper duct 200. The air
directed into the space flows toward the front portion of the
upper duct 200 by the stirrer fan. A portion of the air
directed to the front portion of the upper duct is directed
to the door side through the blowing holes 221 of the upper
duct 200, and the rest is directed downward through the air-
guide holes 230. At this point, the air directed through the
air-guide holes 230 is deflected toward the rear portion of
the cavity 130 at a predetermined angle by the shape of the
air-guides 250.
In addition, in the course of radiating the microwave
to the food loaded in the cavity 130, the air in the cavity
130 is heated and then exhausted out of the cavity 200
through the air exhaust holes formed on the top of the cavity
130. The exhaust of the air out of the cavity 130 means that
it is exhausted out of the microwave oven.
The process for mounting or dismounting the upper duct
200 on the tope of the cavity 130 will be described
hereinafter.
As described above, the fixing projections 270 are
formed on the both sides of the rear end of the main body 210
and the hook steps 250 are formed on the front end of the
inclined portion 220. Rear fixing holes for receiving the
fixing projections are formed on the back plate 185 of the
cavity 130. Front fixing holes for receiving the hook steps
250 are formed on the front cover 112 of the cavity 130.
Accordingly, in order for the user to mount the upper
duct 200 on the top of the cavity 130 the user grasps the
grasping holes 2 60 such that the fixing projections 270 is
oriented rearward and inserts the upper duct 200 into the
cavity 130. Then, when the user inserts the fixing
projections 270 into the rear fixing holes formed on the back
plate 185 of the cavity 130, the rear side of the upper duct
200 is fixed on the rear portion of the cavity 130.
In this state, when the user pushes the front portion
of the upper duct 200, the hook steps 250 are one-touch-fixed
on the front portion of the cavity 13 0.
As described above, when the upper duct 100 is fixed
on the front cover 112, the upper duct 200 is easily fixed on
the top of the cavity 130 without any special coupling
members such as screws.
When the upper duct 200 fixed on the cavity 130 becomes
dirty, the user can dismount the upper duct 200 from the
cavity 130 to clean the upper duct 200. In order to dismount
the upper duct 200, the user can use the grasping holes.
That is, in a state where the upper duct 200 is
installed on the top of the cavity 130, the grasping holes
are oriented frontward. That is, when the user opens the door
120, the grasping holes 260 is exposed frontward. In this
state, the user inserts his/her fingers into the grasping
holes 2 60, pushes the upper duct 200 rearward, and further
pushes the upper duct 200 downward to remove the hook steps
250 from the front fixing holes. In this state, when the user
pulls the upper duct 200 frontward, the fixing projections
270 are removed from the rear fixing holes, thereby
dismounting the upper duct 200 from the top of the cavity
130.
As described above, the dismounting of the upper duct
200 is realized in a reverse process to. that for the mounting
the upper duct 200. That is, in the dismounting process, the
hook steps 250 are firstr emoved and then the fixing
projections are removed. In the mounting process, the fixing
projections 270 are first inserted and then the hook steps
250 are inserted.
Fig. 4 is a perspective view illustrating theair-guide
portion of the upper duct.
Referring to Fig. 4, the air-guide holes 230 and
theair-guides 240 are formed on a border between the main
body 210 and the inclined portion 220.
The air-guide holes are formed penetrating the main
body 210 of the upper duct in a rectangular shape. The air-
guides 230 are formed around the respective air-guide holes
230.
Meanwhile, the air-guides 240 are formed extending from
the main body 210 downward and having a -shaped section.
Describing in more detail, each of the air-guides 240
includes an inclined rib 242 extending downward from the main
body 210 to a predetermined height and a bent rib 241 bent
from both ends of the inclined rib 242 rearward of the upper
duct 200. The inclined rib 242 and the bent rib 241 are
integrally formed with each other. The inclined rib 241 is
inclined rearward at a predetermined angle with reference to
a vertical surface perpendicular to the main body 210. Hence,
the air directed through the air-guide holes 230 are directed
rearward of the cavity 130 by the inclined angle of the
inclined ribs 242.
According to the feature of the present invention, the
upper duct 200 is one-touch-fixed on the top of the cavity
130 through the fixing projections 270 and the hook steps
250.
In addition, by the shape of the air-guides 240, when
the air is directed from the upper duct 200 into the cavity
130, the air can be directed downward in the cavity 130,
thereby functioning as an air curtain. That is, the vapor
generated from the food in the cavity 130 cannot contact the
door by the air directed from the upper duct 200 into the
cavityl30, thereby preventing the water drops from being
Industrial Applicability
The upper duct and the microwave oven with the upper
duct have industrial applicability as they have many
advantages as follows:
1. since it is easy for the worker to mount the upper
duct on the cavity top, the mounting time of the upper duct
on the cavity top and the manufacturing costs can be saved.
2. Since steam generated from the food in the cavity
cannot contact the door by the air curtain directed from the
upper duct into the cavity, the door is not clouded and the
water drops are not formed on the door. Accordingly, the door
is not clouded, the user can easily object the cooking state
of the food.
3. Furthermore, Since the steam does not contact the
door, no water drop phase-changed from the steam is formed on
the door, thereby preventing the cavity bottom from becoming
dirty. Accordingly, the service life of the microwave oven
can be increased.
WE CLAIM :
1. A microwave oven comprising:
a cavity in which food is loaded;
a door for opening and closing a front wall of the
cavity; and
an upper duct having a main body detachably mounted
in the cavity, a duct fixing member formed on a side of
the main body and fixed on a wall of the cavity, and an
inclined portion extending from an end of the main body and
inclined at a predetermined angle, and the upper duct forms
air curtain for preventing steam generated in the course of
heating the food from contacting the door.
2. The microwave oven as claimed in claim 1, wherein
the upper duct is formed of synthetic resin material.
3. The microwave oven as claimed in claim 1, wherein
the duct fixing member comprises a hook step formed on a
front portion of the upper duct.
4. The microwave oven as claimed in claim 1, wherein
the duct fixing member comprises a hook step extending
from an end of the inclined portion to allow the upper
duct to foe fixed on the front wall of the cavity.
5. The microwave oven as claimed in claim 1, wherein
the duct fixing member comprises one or more fixing
projections extending from a rear end of the upper duct.
6. The microwave oven as claimed in claim 1, wherein
the duct fixing member comprises one or more fixing
projections extending from a rear end of the upper duct to
allow the upper duct to be fixed on a rear wall of the
cavity.
7. The microwave oven as claimed in claim 1, wherein
the duct fixing member is integrally formed with the main
body.
8. The microwave oven as claimed in claim 1, wherein
the inclined portion is provided with one or more grasping
portions a user can grasp.
9. The microwave oven as claimed in claim 1, wherein
the cavity is provided at a rear wall with an insertion
groove in which the duct fixing member can be inserted.
10. The microwave oven as claimed in claim 1, wherein
the cavity is provided at a front wall with an insertion
groove in which the duct fixing member can be inserted.
11. A microwave oven comprising:
a cavity defining a food heating space;
a door for opening and closing a front wall of the
cavity; and
an upper duct including a main body mounted in the
cavity and an air curtain forming unit for preventing
steam generated in the course of heating the food from
contacting the door,
wherein the upper duct is detachably mounted on a top
of the cavity.
12. The microwave oven as claimed in claim 11,
wherein the air curtain forming unit is formed on a front
portion of the upper duct.
13. The microwave oven according to claim 11, wherein
the air curtain forming unit comprising:
one or more air-guide holes each formed in a
rectangular shape; and
an air-guide for directing air at a predetermined
inclined angle into the cavity through the air-guide holes.
14. The microwave oven as claimed in claim 11,
wherein the air curtain forming unit comprising:
an air-guide hole through which air is directed into
the cavity; and
an air-guide formed around the air-guide hole and
extending downward, the air-guide being inclined rearward
of the cavity.
15. The microwave oven as claimed in claim 14,
wherein the air-guide has a -shaped section.
16. An upper duct of a microwave oven, comprising:
a cavity defining a food heating space;
a door for opening and closing a front wall of the
cavity;
a duct main body detachably mounted in the cavity;
a duct fixing member for fixing the duct main body on
the cavity, the duct fixing member including a hook step
formed on a front portion of the duct main body and a
fixing projection formed on a rear portion of the duct
main body;
an inclined portion extending from a front end of the
duct main body at a predetermined inclined angle; and
an air curtain forming unit formed on an end of the
duct main body, the air curtain forming unit including an
air-guide hole through which outer air is directed into
the cavity and an air-guide for directing the air from the
air-guide hole rearward of the cavity, the air-guide having
a-shaPed section.
17. The upper duct as claimed in claim 16, wherein
the inclined portion is provided with one or more grasping
portion a user can grasp.
18. The upper duct as claimed in claim 16, wherein
the inclined portion is provided with one or more blowing
holes through which outer air is directed into the cavity.
19. An upper duct of a microwave oven having a cavity
and a door for opening and closing an opening of the
cavity, the upper duct comprising:
a duct main body detachably mounted on a top of the
cavity;
a duct fixing portion formed on a flange portion of
the duct main body; and
an air curtain forming unit formed on an end of the
duct main body to prevent water drops from forming on the
door,
wherein the upper duct is mounted by inserting a hook
step in a front wall of the cavity after inserting a
fixing projection in a rear wall of the cavity and is
dismounted by removing the fixing projection from the rear
wall of the cavity after the hook step is removed from the
front wall of the cavity.

Documents:

00971-kolnp-2006 claims.pdf

00971-kolnp-2006 abstract.pdf

00971-kolnp-2006 assignment.pdf

00971-kolnp-2006 correspondence others.pdf

00971-kolnp-2006 description (complete).pdf

00971-kolnp-2006 drawings.pdf

00971-kolnp-2006 form-1.pdf

00971-kolnp-2006 form-3.pdf

00971-kolnp-2006 form-5.pdf

00971-kolnp-2006 international publication.pdf

00971-kolnp-2006 international search authority report.pdf

00971-kolnp-2006 pct form.pdf

971-KOLNP-2006-ABSTRACT 1.1.pdf

971-kolnp-2006-assignment.pdf

971-KOLNP-2006-CANCELLED PAGE.pdf

971-KOLNP-2006-CORRESPONDENCE 1.1.pdf

971-kolnp-2006-correspondence.pdf

971-KOLNP-2006-DESCRIPTION COMPLETE 1.1.pdf

971-KOLNP-2006-DRAWINGS 1.1.pdf

971-kolnp-2006-examination report.pdf

971-kolnp-2006-form 18.pdf

971-kolnp-2006-form 3.pdf

971-kolnp-2006-form 5.pdf

971-KOLNP-2006-FORM-27-1.pdf

971-KOLNP-2006-FORM-27.pdf

971-kolnp-2006-gpa.pdf

971-kolnp-2006-granted-abstract.pdf

971-kolnp-2006-granted-claims.pdf

971-kolnp-2006-granted-description (complete).pdf

971-kolnp-2006-granted-drawings.pdf

971-kolnp-2006-granted-form 1.pdf

971-kolnp-2006-granted-specification.pdf

971-KOLNP-2006-INTERNATIONAL PUBLICATION.pdf

971-KOLNP-2006-OTHERS 1.1.pdf

971-KOLNP-2006-OTHERS.pdf

971-KOLNP-2006-REPLY F.E.R.pdf

971-kolnp-2006-reply to examination report.pdf

abstract-00971-kolnp-2006.jpg


Patent Number 246452
Indian Patent Application Number 971/KOLNP/2006
PG Journal Number 09/2011
Publication Date 04-Mar-2011
Grant Date 28-Feb-2011
Date of Filing 18-Apr-2006
Name of Patentee LG ELECTRONICS INC.
Applicant Address 20, YOIDO-DONG, YONGDUNGPO-GU, SEOUL
Inventors:
# Inventor's Name Inventor's Address
1 LEE DONG-HEON 103-206 SEONGWON1ST APT. SANGNAM-DONG, CHANGWON-SI, KYUNGSANGNAM-DO, 641-010
2 LEE SANG-RYUL 204-901 DONGA 2ND APT. WOLYONG-DONG, HAPPO-GU, MASAN-SI, KYUNGSANGNAM-DO, 631-770
PCT International Classification Number F24C 15/20
PCT International Application Number PCT/KR2004/002621
PCT International Filing date 2004-10-14
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 10-2003-0072132 2003-10-16 Republic of Korea
2 10-2003-0072128 2003-10-16 Republic of Korea