US20100139331A1 - Drum Type Washing Machine - Google Patents
Drum Type Washing Machine Download PDFInfo
- Publication number
- US20100139331A1 US20100139331A1 US12/449,697 US44969708A US2010139331A1 US 20100139331 A1 US20100139331 A1 US 20100139331A1 US 44969708 A US44969708 A US 44969708A US 2010139331 A1 US2010139331 A1 US 2010139331A1
- Authority
- US
- United States
- Prior art keywords
- bearing housing
- drum
- washing machine
- type washing
- drum type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
- D06F37/22—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal axis
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/26—Casings; Tubs
- D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
- D06F37/269—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups for the bearing of the rotary receptacle
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
This invention relates to a drum type washing machine including a cabinet, a tub provided in the cabinet, a drum rotatably provided in the tub, a bearing housing including a huh having a rotating shaft of the drum passed therethrough and bearings placed in a center portion thereof, a supporting portion which extends from an outside circumference of the hub integrally, and a fastening portion provided integrally with the supporting portion, a connective supporter fastened to the fastening portion for supporting the bearing housing, and a vibration attenuating device between the connective supporter and the cabinet for attenuating vibration.
Description
- The present invention relates to washing machines, and more particularly, to a drum type washing machine which enables to enhance rigidity of a system thereof and make the drum type washing machine lighter.
- In general, the washing machine performs steps of washing, rinsing, and spinning for removing dirt from laundry by using interaction between the detergent and the water. In the washing machines, there are cylinder type, agitator type, pulsator type washing machines according to washing types.
- The agitator type washing machine washes laundry by rotating a blade like agitator upright from a center of a washing tub in left/right directions, and the pulsator type washing machine washes the laundry with water circulation formed by rotating a disc like pulsator. The drum type washing machine washes the laundry by placing water, detergent, and the laundry in the drum having a plurality of projections on the drum and rotating the drum around a horizontal axis at a slow speed to cause impacts as the laundry is dropped after lifted by the projections and friction between the laundry. Since the drum type washing has advantage in that there is almost no damage of the laundry and water consumption is low, it is a trend that use of the drum type washing machine increases.
-
FIG. 1 illustrates a related art drum type washing machine, schematically. The related art drum type washing machine will be described briefly with reference toFIG. 1 . - The related art drum type washing machine is provided with a
drum 1 for holding washing objects, a tub 2 and a cabinet 7 both surrounding thedrum 1, and amotor 5 for driving thedrum 1. The related art drum type washing machine is also provided with a drum driving shaft 4 rotated by themotor 5 for rotating thedrum 1. The drum driving shaft 4 is supported on a bearinghousing 3 on a rear wall of the tub 2. Under the tub 2, there is adamper 6 for reducing transmission of vibration from the tub 2 caused by rotation of the drum to the cabinet 7. - At the end, if the
drum 1 having the laundry introduced thereto rotates, the vibration is transmitted from thedrum 1 to the bearinghousing 3, and therefrom to the tub 2. The vibration is dampened by the damper before the vibration is transmitted from the tub 2 to the cabinet 7. - However, the related art drum type washing machine has the following problems.
- First, the bearing housing fixedly secured to the tub and the damper under the tub amplify vibration of the tub at the time the drum vibrates, to increase noise from an entire system. The amplified vibration of the tub requires enhancing strength of the entire system.
- Second, the misalignment of the bearings in the bearing housing causes difficulty in placing the drum driving shaft in the bearings.
- Third, the location of the bearing housing which supports the drum at the rear wall of the tub requires an excessive rigidity of the rear wall of the tub.
- To solve the problems, an object of the present invention is to provide a drum type washing machine which enables to enhance rigidity of a system thereof and make the drum type washing machine lighter.
- Another object of the present invention is to provide a drum type washing machine which enables to reduce vibration from an entire system when the drum vibrates.
- Another object of the present invention is to provide a drum type washing machine which enables to reduce a number of components of, and a time period required for assembling, a bearing housing.
- To achieve these objects and other advantages and in accordance with the purpose of the invention, as embodied and broadly described herein, a drum type washing machine includes a cabinet, a tub provided in the cabinet, a drum rotatably provided in the tub, and a bearing housing including a hub having a rotating shaft of the drum passed therethrough and bearings placed in a center portion thereof, a supporting portion which extends from an outside circumference of the hub integrally, and a fastening portion provided integrally with the supporting portion.
- In another aspect of the present invention, a drum type washing machine includes a cabinet, a drum rotatably mounted in the cabinet, a bearing housing including a first bearing housing having a hub with a rotation shaft of the drum passed therethrough, a supporting portion along an outside circumference to the first bearing housing, and a second bearing housing having a fastening portion adjacent to the supporting portion, a vibration attenuating device in the cabinet for attenuating vibration generated by the drum, and a plurality of connective supporters for distributing force from the bearing housing and transmissing the distributed force to the vibration attenuating device.
- The accompanying drawings, which are included to provide further understanding of the disclosure and are incorporated in and constitute a part of this application, illustrate embodiments of the disclosure and together with the description serve to explain the principle of the disclosure.
- In the drawings:
-
FIG. 1 illustrates a related art drum type washing machine, schematically; -
FIG. 2 illustrates a section of a drum type washing machine in accordance with a preferred embodiment of the present invention, schematically; -
FIG. 3 illustrates a perspective view of the drum type washing machine inFIG. 2 with a partial cut away view; and -
FIG. 4 illustrates a perspective view of a first bearing housing mounted to the drum type washing machine inFIG. 2 . - Reference will now be made in detail to the specific embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.
-
FIG. 2 illustrates a section of a drum type washing machine in accordance with a preferred embodiment of the present invention schematically, andFIG. 3 illustrates a perspective view of the drum type washing machine inFIG. 2 with a partial au away view. - Referring to
FIGS. 2 and 3 , the drum type washing machine may include acabinet 70 which forms an exterior of the drum type washing machine, adrum 10 rotatably provided in thecabinet 70, a rotatingshaft 40 for rotating thedrum 10, and amotor 50 connected to the rotatingshaft 40. Of course, the drum type washing machine has a bearinghousing 300 for supporting the rotatingshaft 40. The bearinghousing 300 includes a first bearinghousing 310 for direct supporting of the rotatingshaft 40, and a second bearinghousing 320 on an outside of the first bearinghousing 310. - The drum type washing machine also may include a vibration attenuating
device 60 for attenuating vibration transmitted from the drum to thecabinet 70. In the meantime, aconnective supporter 400 for supporting the bearinghousing 300 may be provided between the vibration attenuatingdevice 60 and the bearinghousing 300. - In detail, the
connective supporter 400 has one side fastened to a layer side of the bearing housing with afastening member 30, and the other side fixedly secured to the vibration attenuatingdevice 60. The vibration attenuatingdevice 60 is projected from a bottom of thecabinet 70, and may include attenuating members, such as dampers or springs. The bearing housing 300 and theconnective supporter 400 will be described in detail, later. -
FIG. 4 illustrates a perspective view of the first bearing housing mounted to the drum type washing machine inFIG. 3 . - Referring to
FIG. 4 , the first bearinghousing 310 may include ahub 311 for placing the bearings (see 21 and 22 inFIG. 2 ) therein, a supportingportion 312 which extends from an outside circumference of thehub 311, and afastening portion 313 which also extends from an outside circumference of thehub 311 longer than the supportingportion 312. In this instance, it is preferable that thehub 311, the supportingportion 312, and thefastening portion 313 are formed integrally. - The supporting
portion 312 may have at least one first fasteningboss 312 a for fastening a stator (see 51 inFIG. 3 ) of the motor thereto, and thefastening portion 313 may have at least one second fasteningboss 313 a for fastening theconnective supporter 400 thereto. - In detail, the
hub 311 may have a center opening 311 a with a front bearing 21 and arear bearing 22 placed in opposite sides thereof for rotatably supporting the rotating shaft (see 40 inFIG. 2 ). - The supporting
portion 312 surrounds the outside circumference of thehub 311 and is extended in a radial direction therefrom. It is preferable that the supportingportion 312 has a thickness of, for an example, 2-3 mm, and has a shape repeatedly projected and recessed substantially with reference to a plane perpendicular to an axis of thehub 311 along a circumferential direction. The projected portion of the supportingportion 312 may have thefastening boss 312 a for fastening thestator 51 of the motor as described before. - In the meantime, the
fastening portion 313 is an extension from thehub 311 longer than the supportingportion 312. It is preferable that thefastening portion 313 is fabricated of a stiff material thicker than the supportingportion 312. This is because theconnective supporter 400 is fastened to thesecond fastening boss 313 a of thefastening portion 313 for supporting weight of thedrum 10 and the bearinghousing 300. - In the embodiment, a plurality of the
fastening portions 313 are formed in a radial direction of the bearinghousing 300, for an example, two as shown in the drawing. Theconnective supporter 400 is fastened to each of thesecond fastening bosses 313 a of the fasteningportions 313. Of course, numbers of the fasteningportions 313 and theconnective supporters 400 are not limited to two, but appropriate variations thereof are possible. - Referring to
FIGS. 2 and 3 again, theconnective supporter 400 may include anextension portion 410 extended downward in a radial direction of the bearinghousing 300, and a connection portion bent from theextension portion 410. Preferable, a plurality of theconnective supporters 400 are provided, and more preferably, theconnective supporters 400 are provided symmetrically under the bearinghousing 300. - As a result, the
extension portion 410, extended in the radial direction of the bearinghousing 300 from a lower side thereof, uniformly distributes force to theconnective supporter 400. Theconnection portion 420 transmits the distributed force from theextension portion 410 to the vibration attenuatingdevice 60. In detail, theconnection portion 420 is mounted parallel to the bottom of thecabinet 70 substantially, and may be connected to a firstvibration attenuating device 61 having a damper and a secondvibration attenuating device 63 having a spring at an underside of theconnection portion 420. - The
extension portion 410 may have reinforcingribs 411 for reinforcing strength of theconnective supporter 400 for sustaining the force to theextension portion 410. - In the meantime, the
second bearing housing 320 is connected to thefirst bearing housing 310 on a front side of thefirst bearing housing 310, i.e., on a front side of the supportingportion 312. - The
first bearing housing 310 may be injection molded inserted in thesecond bearing housing 320, or fabricated separately and coupled with thesecond bearing housing 320. In a case thefirst bearing housing 310 is injection molded inserted in thesecond bearing housing 320, thefirst bearing housing 310 and thesecond bearing housing 320 will be fabricated as one unit. In the meantime, thesecond bearing housing 320 may be formed of plastic, and thefirst bearing housing 310 may be formed of metal, for an example, aluminum. - In the meantime, since the
front bearing 21 and therear bearing 22 are placed in the same component ofhub 311, there is no axis misalignment between thefront bearing 21 and therear bearing 22. - Moreover, since only a component with heavy weight, i.e., only the
fastening portion 313 fastened to theconnective supporter 400 is fabricated of the stiff material, while the supportingportion 312 fastened to thesecond bearing housing 320 is fabricated of thin material, total weight and size can be reduced. - It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
- The drum type washing machine of the present invention has the following advantages.
- First, the bearing housing, having the supporting portion for mounting the stator of the motor thereto and the fastening portion for mounting the connective supporter thereto fabricated as one unit, permits to reduce a number of components, and a time period, required for assembly of the bearing housing.
- Second, while the related art vibration attenuation device supports the tub directly, because the connective supporter of the present invention extended in the radial direction of the bearing housing distributes force to the bearing housing, vibration noise from an entire system can be reduced.
- Third, the direct fastening of the stator of the motor and the connective supporter to the strong first bearing housing improves system stiffness, and makes an entire system lighter.
Claims (10)
1. A drum type washing machine comprising:
a cabinet;
a tub provided in the cabinet;
a drum rotatably provided in the tub;
a bearing housing including a hub having a rotating shaft of the drum passed therethrough and bearings placed in a center portion thereof, a supporting portion which extends from an outside circumference of the hub integrally, and a fastening portion provided integrally with the supporting portion;
a connective supporter fastened to the fastening portion for supporting the bearing housing; and
a vibration attenuating device between the connective supporter and the cabinet for attenuating vibration.
2. The drum type washing machine as claimed in claim 1 , wherein a plurality of the connective supporters are provided in symmetry under the bearing housing.
3. The drum type washing machine as claimed in claim 2 , wherein the connective supporter includes;
an extension portion extended in a radial direction of the bearing housing, and
a connection portion bent from the extension portion and connected to the vibration attenuating device.
4. The drum type washing machine as claimed in claim 3 , wherein the connection portion is provided parallel to a bottom of the cabinet substantially, and at least one vibration attenuating device is connected to an underside of the connection portion.
5. The drum type washing machine as claimed in claim 1 , wherein the connective supporter further includes reinforcing ribs for reinforcing strength of the connective supporter.
6. The drum type washing machine as claimed in claim 1 , wherein a stator of a motor for driving the drum is fastened to the supporting portion.
7. The drum type washing machine as claimed in claim 1 , wherein the bearing housing includes;
a first bearing housing for direct supporting of the rotating shaft of the drum, and
a second bearing housing provided on an outside of the first bearing housing.
8. The drum type washing machine as claimed in claim 7 , wherein the first bearing housing is injection molded inserted in the second bearing housing.
9. The drum type washing machine as claimed in claim 8 , wherein the supporting portion and the fastening portion are provided at the first bearing housing.
10. A drum type washing machine comprising:
a cabinet;
a drum rotatably provided in the cabinet;
a bearing housing including a first bearing housing having a hub with a rotation shaft of the drum passed therethrough; a supporting portion along an outside circumference to the first bearing housing, and a second bearing housing having a fastening portion adjacent to the supporting portion;
a vibration attenuating device in the cabinet for attenuating vibration generated by the drum; and
a plurality of connective supporters for distributing force from the bearing housing and transmissing the distributed force to the vibration attenuating device.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070018281A KR101414599B1 (en) | 2007-02-23 | 2007-02-23 | Drum type washer |
KR10-2007-0018281 | 2007-02-23 | ||
PCT/KR2008/001050 WO2008103007A2 (en) | 2007-02-23 | 2008-02-22 | Drum type washing machine |
Publications (1)
Publication Number | Publication Date |
---|---|
US20100139331A1 true US20100139331A1 (en) | 2010-06-10 |
Family
ID=39710614
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/449,697 Abandoned US20100139331A1 (en) | 2007-02-23 | 2008-02-22 | Drum Type Washing Machine |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100139331A1 (en) |
EP (1) | EP2122035B1 (en) |
KR (1) | KR101414599B1 (en) |
CN (1) | CN101680151A (en) |
WO (1) | WO2008103007A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113123060A (en) * | 2019-12-31 | 2021-07-16 | 合肥海尔滚筒洗衣机有限公司 | Double-drum washing machine |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8272145B2 (en) * | 2004-11-10 | 2012-09-25 | Lg Electronics Inc. | Dryer |
KR101586311B1 (en) * | 2008-12-30 | 2016-01-18 | 엘지전자 주식회사 | Drum washing machine |
KR101660729B1 (en) | 2008-12-30 | 2016-09-29 | 엘지전자 주식회사 | Laundry Machine |
KR20100080415A (en) * | 2008-12-30 | 2010-07-08 | 엘지전자 주식회사 | Laundry machine |
CN102405313B (en) * | 2008-12-30 | 2014-01-08 | Lg电子株式会社 | Laundry machine |
KR101819498B1 (en) | 2008-12-30 | 2018-01-17 | 엘지전자 주식회사 | Laundry Machine |
US9038424B2 (en) * | 2008-12-31 | 2015-05-26 | Lg Electronics Inc. | Laundry machine |
US9828715B2 (en) | 2009-05-28 | 2017-11-28 | Lg Electronics Inc. | Laundry maching having a drying function |
KR20100129175A (en) * | 2009-05-28 | 2010-12-08 | 엘지전자 주식회사 | Laundry machine |
KR101663610B1 (en) | 2009-05-28 | 2016-10-07 | 엘지전자 주식회사 | Laundry Machine |
KR101698854B1 (en) * | 2009-05-28 | 2017-01-24 | 엘지전자 주식회사 | manufacturing method for washing machine |
KR101689600B1 (en) * | 2009-05-28 | 2016-12-26 | 엘지전자 주식회사 | Laundry Machine |
KR101689604B1 (en) * | 2009-05-28 | 2017-01-09 | 엘지전자 주식회사 | Laundry machine |
KR20100129158A (en) * | 2009-05-28 | 2010-12-08 | 엘지전자 주식회사 | Laundry machine |
KR20100129156A (en) | 2009-05-28 | 2010-12-08 | 엘지전자 주식회사 | Laundry machine |
KR101692727B1 (en) | 2009-05-28 | 2017-01-04 | 엘지전자 주식회사 | Laundry machine |
KR20100129164A (en) * | 2009-05-28 | 2010-12-08 | 엘지전자 주식회사 | Laundry machine |
KR20100129157A (en) | 2009-05-28 | 2010-12-08 | 엘지전자 주식회사 | Laundry machine |
EP2385163B1 (en) | 2010-05-03 | 2016-10-05 | Electrolux Home Products Corporation N.V. | A laundry machine with an integrated heat pump system |
KR20150017889A (en) * | 2013-08-08 | 2015-02-23 | 삼성전자주식회사 | Supporting device for washing machine |
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Publication number | Priority date | Publication date | Assignee | Title |
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US20060016228A1 (en) * | 2004-07-20 | 2006-01-26 | Lg Electronics Inc. | Drum type washing machine and bearing housing structure thereof |
US20060096329A1 (en) * | 2002-12-10 | 2006-05-11 | Gon Kim | Drum type washing machine |
KR100651853B1 (en) * | 2005-09-30 | 2006-12-01 | 엘지전자 주식회사 | Bearing housing assembly of an insert-molding type and cabinet-tub unified drum-washer having the same |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100763367B1 (en) | 2000-11-15 | 2007-10-04 | 엘지전자 주식회사 | drum type washing machine |
KR100587307B1 (en) | 2004-06-09 | 2006-06-08 | 엘지전자 주식회사 | Drum type washing machine and drum of drum type washing machine |
KR100743707B1 (en) | 2005-02-03 | 2007-07-30 | 엘지전자 주식회사 | Drum washer having a tub coupled to cabinet and a drying device |
KR20060096714A (en) * | 2005-03-02 | 2006-09-13 | 삼성전자주식회사 | Drum type washing machine |
-
2007
- 2007-02-23 KR KR1020070018281A patent/KR101414599B1/en active IP Right Grant
-
2008
- 2008-02-22 EP EP08723088.4A patent/EP2122035B1/en active Active
- 2008-02-22 US US12/449,697 patent/US20100139331A1/en not_active Abandoned
- 2008-02-22 WO PCT/KR2008/001050 patent/WO2008103007A2/en active Application Filing
- 2008-02-22 CN CN200880006037A patent/CN101680151A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US20060096329A1 (en) * | 2002-12-10 | 2006-05-11 | Gon Kim | Drum type washing machine |
US20060016228A1 (en) * | 2004-07-20 | 2006-01-26 | Lg Electronics Inc. | Drum type washing machine and bearing housing structure thereof |
KR100651853B1 (en) * | 2005-09-30 | 2006-12-01 | 엘지전자 주식회사 | Bearing housing assembly of an insert-molding type and cabinet-tub unified drum-washer having the same |
US20070074543A1 (en) * | 2005-09-30 | 2007-04-05 | Lg Electronics Inc. | Bearing housing assembly of drum-type washing machine and drum-type washing machine with the same |
Non-Patent Citations (1)
Title |
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Machine Language Translation of KR 10-0651853 B1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113123060A (en) * | 2019-12-31 | 2021-07-16 | 合肥海尔滚筒洗衣机有限公司 | Double-drum washing machine |
Also Published As
Publication number | Publication date |
---|---|
KR20080078328A (en) | 2008-08-27 |
CN101680151A (en) | 2010-03-24 |
EP2122035B1 (en) | 2016-09-14 |
WO2008103007A2 (en) | 2008-08-28 |
WO2008103007A3 (en) | 2009-09-17 |
EP2122035A2 (en) | 2009-11-25 |
EP2122035A4 (en) | 2015-01-07 |
KR101414599B1 (en) | 2014-07-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: LG ELECTRONICS INC.,KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LIM, HEE TAE;SEO, HYUN SEOK;JO, MIN GYU;AND OTHERS;REEL/FRAME:023480/0373 Effective date: 20090928 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |