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US20040123538A1 - Coupling cushiony flooring - Google Patents

Coupling cushiony flooring Download PDF

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Publication number
US20040123538A1
US20040123538A1 US10/334,563 US33456302A US2004123538A1 US 20040123538 A1 US20040123538 A1 US 20040123538A1 US 33456302 A US33456302 A US 33456302A US 2004123538 A1 US2004123538 A1 US 2004123538A1
Authority
US
United States
Prior art keywords
flooring
cushiony
coupling
adhesive
present
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
Application number
US10/334,563
Inventor
Deok-Gi Ko
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SW CO Ltd
Original Assignee
SW CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SW CO Ltd filed Critical SW CO Ltd
Priority to US10/334,563 priority Critical patent/US20040123538A1/en
Assigned to SW CO., LTD. reassignment SW CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KO, DEOK-GI
Publication of US20040123538A1 publication Critical patent/US20040123538A1/en
Abandoned legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F19/00—Advertising or display means not otherwise provided for
    • G09F19/22—Advertising or display means on roads, walls or similar surfaces, e.g. illuminated
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
    • E04F15/187—Underlayers specially adapted to be laid with overlapping edges
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
    • E04F15/20—Separately-laid insulating layers; Other additional insulating measures; Floating floors for sound insulation
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/07—Joining sheets or plates or panels with connections using a special adhesive material

Definitions

  • the present invention relates to a cushiony flooring capable of being laid on various living facilities or accommodation structures to provide a cushion function.
  • Polyurethane or sponge is mainly used as material of such flooring. This is manufactured to have constant dimensions, and is transferred to a location. And then, the flooring is unfolded on the floor, and simultaneously is coupled to each other by means of various coupling means.
  • the coupling means coupling recesses are formed at an edge of the flooring such that abutted portions of the flooring are complementarily inserted into each other. This manner has a drawback that the coupled portions are easily detached if shock is applied thereto.
  • the process of adhering the cushion and the surface layer by means of the adhesive is not precisely performed, and many workers are required for performing the process. Accordingly, when the flooring is arranged on the surface of the bottom and is coupled to each other, the coupling portions are not constant and the appearance is not well, thereby unsatisfying the construction.
  • the present invention is directed to a cushiony flooring that substantially obviates one or more problems due to limitations and disadvantages of the related art.
  • An object of the present invention is to provide a cushiony flooring capable of being easily manufactured and constructed, with durability of a coupled portion thereof improved.
  • a coupling cushiony flooring having a rectangular shape comprising: lower steps formed along two sides of the flooring; an adhesive coated on an upper surface of the lower steps; a release paper attached to the adhesive; and upper steps formed along two sides of the flooring.
  • FIG. 1 is a perspective view of a cushiony flooring according to one preferred embodiment of the present invention.
  • FIG. 2 is a cross-sectional view showing the installed state of the cushiony flooring of the present invention
  • FIG. 2 a is a partially enlarged view of the cushiony flooring of FIG. 2;
  • FIG. 3 is a top plan view showing a coupling state of a cushiony flooring of the present invention.
  • FIG. 1 is a perspective view of an assembled state of a cushiony flooring according to one preferred embodiment of the present invention, in which the floorings 1 having a constant shape, i.e., a rectangular shape, are coupled to each other along two sides thereof.
  • the rectangular cushion 10 may be mainly made of EVA sponge, polyurethane foam or rubber.
  • One cushion is formed with lower steps 12 along two sides, while the other cushion is formed with upper steps along two sides which are symmetrical to the lower steps.
  • the flooring having the above structure may be manufactured through a molding by once.
  • the upper surface of the lower step 12 is applied with an industrial adhesive, and a release paper 18 is attached to the adhesive.
  • the lower step 12 is strongly adhered to the upper step 14 by means of the adhesive 16 formed on the lower step.
  • the remaining floorings are correctly arranged as the above-mentioned manner.
  • the cushion 10 has a transferred printing layer 22 of various colors, such as design, logo or symbol, on the upper surface thereof.
  • the transferred printing layer 22 may be formed by means of a method of attaching a pattern paper, as well as the transferring method using a film.
  • a transparent urethane coating solution may be sprayed on the upper surface of the transferred printing layer to form a coating layer 20 .
  • the flooring of the present invention is manufactured through a single machining process and is coupled and secured to each other by means of the adhesive.
  • the flooring having a uniform quality may be manufactured in a mass production. The construction is easily performed, and time and process for constructing the flooring are decreased, thereby saving the personal expenses. Since the appearance thereof is improved because of the transferred printing layer, it is unnecessary to utilize a separate carpet.
  • the coating layer protecting the surface may improve the durability thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Marketing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Floor Finish (AREA)

Abstract

Disclosed is a cushiony flooring capable of being easily manufactured and constructed, with durability of a coupled portion thereof improved. The coupling cushiony flooring includes lower steps 12 formed along two sides of the flooring; an adhesive 16 coated on an upper surface of the lower steps; a release paper 18 attached to the adhesive; and upper steps formed along two sides of the flooring.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention [0001]
  • The present invention relates to a cushiony flooring capable of being laid on various living facilities or accommodation structures to provide a cushion function. [0002]
  • 2. Background of the Prior Art [0003]
  • Generally, in playing facilities of babies or various gymnasiums, flooring having a cushion function is laid on an indoor or outdoor floor thereof for the purpose of shock absorption and soundproof. In these days, various floorings are used in various public facilities such as office, assembly hall and so forth. [0004]
  • Polyurethane or sponge is mainly used as material of such flooring. This is manufactured to have constant dimensions, and is transferred to a location. And then, the flooring is unfolded on the floor, and simultaneously is coupled to each other by means of various coupling means. As one example of the coupling means, coupling recesses are formed at an edge of the flooring such that abutted portions of the flooring are complementarily inserted into each other. This manner has a drawback that the coupled portions are easily detached if shock is applied thereto. [0005]
  • Meanwhile, in order to solve the above drawback, another means has been proposed by Korean Unexamined Utility Model Publication No. 1999-22352, entitled “Simplified indoor flooring”. According to the publication, a surface layer is positioned on the cushion constituting the flooring, with the position of the surface layer being slightly staggered to that of the flooring. The surface layer has the same dimensions as the flooring, and is adhered to the flooring by means of an adhesive. After carrying out the construction, a large gap does not occur in the coupled portion. Accordingly, even though the shock is applied to the coupled portion, the coupled portion is not easily widened, and alien substances come into or out from the gap of the coupled portion. However, there are many problems at carrying out the construction. [0006]
  • Specifically, according to the publication, the process of adhering the cushion and the surface layer by means of the adhesive is not precisely performed, and many workers are required for performing the process. Accordingly, when the flooring is arranged on the surface of the bottom and is coupled to each other, the coupling portions are not constant and the appearance is not well, thereby unsatisfying the construction. [0007]
  • In addition, the coupled portion of the cushion and the surface layer is easily detached by the continuous shock. [0008]
    • SUMMARY OF THE INVENTION
  • Accordingly, the present invention is directed to a cushiony flooring that substantially obviates one or more problems due to limitations and disadvantages of the related art. [0009]
  • An object of the present invention is to provide a cushiony flooring capable of being easily manufactured and constructed, with durability of a coupled portion thereof improved. [0010]
  • To achieve the object and other advantages, according to one aspect of the present invention, there is provide a coupling cushiony flooring having a rectangular shape comprising: lower steps formed along two sides of the flooring; an adhesive coated on an upper surface of the lower steps; a release paper attached to the adhesive; and upper steps formed along two sides of the flooring. [0011]
  • It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.[0012]
    • BRIEF DESCRIPTION OF THE 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 application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention. In the drawings: [0013]
  • FIG. 1 is a perspective view of a cushiony flooring according to one preferred embodiment of the present invention; [0014]
  • FIG. 2 is a cross-sectional view showing the installed state of the cushiony flooring of the present invention; [0015]
  • FIG. 2[0016] a is a partially enlarged view of the cushiony flooring of FIG. 2; and
  • FIG. 3 is a top plan view showing a coupling state of a cushiony flooring of the present invention.[0017]
    • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • A preferred embodiment according to the present invention will now be explained with reference to the accompanying drawings. [0018]
  • FIG. 1 is a perspective view of an assembled state of a cushiony flooring according to one preferred embodiment of the present invention, in which the [0019] floorings 1 having a constant shape, i.e., a rectangular shape, are coupled to each other along two sides thereof.
  • As shown in FIG. 1, the [0020] rectangular cushion 10 may be mainly made of EVA sponge, polyurethane foam or rubber. One cushion is formed with lower steps 12 along two sides, while the other cushion is formed with upper steps along two sides which are symmetrical to the lower steps. The flooring having the above structure may be manufactured through a molding by once. The upper surface of the lower step 12 is applied with an industrial adhesive, and a release paper 18 is attached to the adhesive.
  • Specifically, the [0021] lower step 12 is strongly adhered to the upper step 14 by means of the adhesive 16 formed on the lower step. The remaining floorings are correctly arranged as the above-mentioned manner.
  • The [0022] cushion 10 has a transferred printing layer 22 of various colors, such as design, logo or symbol, on the upper surface thereof. The transferred printing layer 22 may be formed by means of a method of attaching a pattern paper, as well as the transferring method using a film. In order to protect the transferred printing layer 22, a transparent urethane coating solution may be sprayed on the upper surface of the transferred printing layer to form a coating layer 20.
  • With the above description, the flooring of the present invention is manufactured through a single machining process and is coupled and secured to each other by means of the adhesive. According to the present invention, the flooring having a uniform quality may be manufactured in a mass production. The construction is easily performed, and time and process for constructing the flooring are decreased, thereby saving the personal expenses. Since the appearance thereof is improved because of the transferred printing layer, it is unnecessary to utilize a separate carpet. In addition the coating layer protecting the surface may improve the durability thereof. [0023]
  • The forgoing embodiments are merely exemplary and are not to be construed as limiting the present invention. The present teachings can be readily applied to other types of apparatus. The description of the present invention is intended to be illustrative, and not to limit the scope of the claims. Many alternatives, modifications, and variations will be apparent to those skilled in the art. [0024]

Claims (1)

What is claimed is:
1. A coupling cushiony flooring having a rectangular shape comprising:
lower steps 12 formed along two sides of the flooring;
an adhesive 16 coated on an upper surface of the lower steps;
a release paper 18 attached to the adhesive; and
upper steps formed along two sides of the flooring.
US10/334,563 2002-12-31 2002-12-31 Coupling cushiony flooring Abandoned US20040123538A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/334,563 US20040123538A1 (en) 2002-12-31 2002-12-31 Coupling cushiony flooring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/334,563 US20040123538A1 (en) 2002-12-31 2002-12-31 Coupling cushiony flooring

Publications (1)

Publication Number Publication Date
US20040123538A1 true US20040123538A1 (en) 2004-07-01

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US10/334,563 Abandoned US20040123538A1 (en) 2002-12-31 2002-12-31 Coupling cushiony flooring

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070022694A1 (en) * 2005-07-27 2007-02-01 Mannington Mills, Inc. Connecting system for surface coverings
EP1846232A1 (en) * 2005-02-11 2007-10-24 Kaindl Flooring GmbH Panel comprising a decorative layer
US20090229218A1 (en) * 2008-03-13 2009-09-17 Liu Ching-Chih Composite flooring
US20100257801A1 (en) * 2007-10-30 2010-10-14 Gordon Anderson Tile tray
US20110146200A1 (en) * 2009-12-17 2011-06-23 Dang Tuan N Tile leveling process and apparatus
US20120096798A1 (en) * 2010-10-21 2012-04-26 Hung-Tse Ko Modular floor tile
US11280096B1 (en) * 2018-10-31 2022-03-22 Harry Bussey Cushioning preform for flooring

Citations (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1394120A (en) * 1919-12-20 1921-10-18 Byrd C Rockwell Veneered flooring-lumber and method of manufacturing same
US1778333A (en) * 1928-06-27 1930-10-14 Frank F Flanner Manufacture of lumber
US1925068A (en) * 1932-07-11 1933-08-29 Bruce E L Co Floor
US2088238A (en) * 1935-06-12 1937-07-27 Harris Mfg Company Wood flooring
US2725910A (en) * 1948-09-22 1955-12-06 Kahr Gustaf Method of producing laminated boards or slabs with a parquet-patterned wearing surface
US3579941A (en) * 1968-11-19 1971-05-25 Howard C Tibbals Wood parquet block flooring unit
US3619964A (en) * 1969-12-10 1971-11-16 Frank Passaro Flooring panels
US3711349A (en) * 1970-01-28 1973-01-16 Commercial Affiliates Tape seaming method
US3866267A (en) * 1974-01-14 1975-02-18 Raymond Lee Organization Inc Rugs with detachable sections
US4388788A (en) * 1980-07-31 1983-06-21 Penn Wood Products Co. Wood floor panel
US4416100A (en) * 1981-09-04 1983-11-22 Troendle, Inc. Modular wooden floor units and method of manufacture thereof
US4471012A (en) * 1982-05-19 1984-09-11 Masonite Corporation Square-edged laminated wood strip or plank materials
US4543765A (en) * 1980-06-18 1985-10-01 Barrett Lawrence G Unitized floor panel and method of laying the same
US4582739A (en) * 1984-02-17 1986-04-15 Rosemarie Givens Edge and corner protective bumper
US4644720A (en) * 1984-11-01 1987-02-24 Schneider Raymond H Hardwood flooring system
US4800671A (en) * 1987-12-14 1989-01-31 Olson Products, Inc. Insect trapping band
US4967529A (en) * 1988-12-29 1990-11-06 Heureux Ghislain L Acoustically insulating floor panel
US5022179A (en) * 1990-01-08 1991-06-11 Olson Products, Inc. Insect trapping device
US5103614A (en) * 1987-05-12 1992-04-14 Eidai Industry Co., Ltd. Soundproofing woody flooring
US5200245A (en) * 1991-10-25 1993-04-06 Brodrick Jr Louis T Fastener
US5283102A (en) * 1992-10-28 1994-02-01 Premier Wood Floors Laminated wood flooring product and wood floor
US5322181A (en) * 1989-02-13 1994-06-21 Soltech, Inc. Protective packaging apparata and method of manufacture
US5454186A (en) * 1994-04-06 1995-10-03 Gang; Bong K. Insect trap kit
US5501754A (en) * 1991-09-11 1996-03-26 Taisei Electronic Industries Co., Ltd. Method of assembling raised dry-floor
US5566930A (en) * 1989-02-08 1996-10-22 Robbins, Inc. Kerfed hardwood floor system
US5570554A (en) * 1994-05-16 1996-11-05 Fas Industries, Inc. Interlocking stapled flooring
US5618602A (en) * 1995-03-22 1997-04-08 Wilsonart Int Inc Articles with tongue and groove joint and method of making such a joint
US5628158A (en) * 1994-07-12 1997-05-13 Porter; William H. Structural insulated panels joined by insulated metal faced splines
US5900099A (en) * 1995-11-03 1999-05-04 Sweet; James C. Method of making a glue-down prefinished wood flooring product
US5935668A (en) * 1997-08-04 1999-08-10 Triangle Pacific Corporation Wooden flooring strip with enhanced flexibility and straightness
US5968625A (en) * 1997-12-15 1999-10-19 Hudson; Dewey V. Laminated wood products
US6021615A (en) * 1998-11-19 2000-02-08 Brown; Arthur J. Wood flooring panel
US6247285B1 (en) * 1997-10-04 2001-06-19 Maik Moebus Flooring panel
US6378831B1 (en) * 2000-05-11 2002-04-30 John R Copeland, Jr. Air-guard corner and edge protector
US6449913B1 (en) * 2000-02-08 2002-09-17 Floyd Shelton Parquet flooring panel comprising spaced, wooden strips secured by adhesive and forming irregular end shapes for alignment with adjacent panels
US6460303B1 (en) * 1996-07-19 2002-10-08 Tac-Fast Georgia L.L.C. Hook and loop anchor sheet module with overlapped edges and sufficient mass to resist buckling
US6606834B2 (en) * 1995-03-07 2003-08-19 Pergo (Europe) Ab Flooring panel or wall panel and use thereof

Patent Citations (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1394120A (en) * 1919-12-20 1921-10-18 Byrd C Rockwell Veneered flooring-lumber and method of manufacturing same
US1778333A (en) * 1928-06-27 1930-10-14 Frank F Flanner Manufacture of lumber
US1925068A (en) * 1932-07-11 1933-08-29 Bruce E L Co Floor
US2088238A (en) * 1935-06-12 1937-07-27 Harris Mfg Company Wood flooring
US2725910A (en) * 1948-09-22 1955-12-06 Kahr Gustaf Method of producing laminated boards or slabs with a parquet-patterned wearing surface
US3579941A (en) * 1968-11-19 1971-05-25 Howard C Tibbals Wood parquet block flooring unit
US3619964A (en) * 1969-12-10 1971-11-16 Frank Passaro Flooring panels
US3711349A (en) * 1970-01-28 1973-01-16 Commercial Affiliates Tape seaming method
US3866267A (en) * 1974-01-14 1975-02-18 Raymond Lee Organization Inc Rugs with detachable sections
US4543765A (en) * 1980-06-18 1985-10-01 Barrett Lawrence G Unitized floor panel and method of laying the same
US4388788A (en) * 1980-07-31 1983-06-21 Penn Wood Products Co. Wood floor panel
US4416100A (en) * 1981-09-04 1983-11-22 Troendle, Inc. Modular wooden floor units and method of manufacture thereof
US4471012A (en) * 1982-05-19 1984-09-11 Masonite Corporation Square-edged laminated wood strip or plank materials
US4582739A (en) * 1984-02-17 1986-04-15 Rosemarie Givens Edge and corner protective bumper
US4644720A (en) * 1984-11-01 1987-02-24 Schneider Raymond H Hardwood flooring system
US5103614A (en) * 1987-05-12 1992-04-14 Eidai Industry Co., Ltd. Soundproofing woody flooring
US4800671A (en) * 1987-12-14 1989-01-31 Olson Products, Inc. Insect trapping band
US4967529A (en) * 1988-12-29 1990-11-06 Heureux Ghislain L Acoustically insulating floor panel
US5566930A (en) * 1989-02-08 1996-10-22 Robbins, Inc. Kerfed hardwood floor system
US5322181A (en) * 1989-02-13 1994-06-21 Soltech, Inc. Protective packaging apparata and method of manufacture
US5022179A (en) * 1990-01-08 1991-06-11 Olson Products, Inc. Insect trapping device
US5501754A (en) * 1991-09-11 1996-03-26 Taisei Electronic Industries Co., Ltd. Method of assembling raised dry-floor
US5200245A (en) * 1991-10-25 1993-04-06 Brodrick Jr Louis T Fastener
US5283102A (en) * 1992-10-28 1994-02-01 Premier Wood Floors Laminated wood flooring product and wood floor
US5454186A (en) * 1994-04-06 1995-10-03 Gang; Bong K. Insect trap kit
US5570554A (en) * 1994-05-16 1996-11-05 Fas Industries, Inc. Interlocking stapled flooring
US5628158A (en) * 1994-07-12 1997-05-13 Porter; William H. Structural insulated panels joined by insulated metal faced splines
US6606834B2 (en) * 1995-03-07 2003-08-19 Pergo (Europe) Ab Flooring panel or wall panel and use thereof
US5618602A (en) * 1995-03-22 1997-04-08 Wilsonart Int Inc Articles with tongue and groove joint and method of making such a joint
US5900099A (en) * 1995-11-03 1999-05-04 Sweet; James C. Method of making a glue-down prefinished wood flooring product
US6460303B1 (en) * 1996-07-19 2002-10-08 Tac-Fast Georgia L.L.C. Hook and loop anchor sheet module with overlapped edges and sufficient mass to resist buckling
US5935668A (en) * 1997-08-04 1999-08-10 Triangle Pacific Corporation Wooden flooring strip with enhanced flexibility and straightness
US6247285B1 (en) * 1997-10-04 2001-06-19 Maik Moebus Flooring panel
US5968625A (en) * 1997-12-15 1999-10-19 Hudson; Dewey V. Laminated wood products
US6021615A (en) * 1998-11-19 2000-02-08 Brown; Arthur J. Wood flooring panel
US6449913B1 (en) * 2000-02-08 2002-09-17 Floyd Shelton Parquet flooring panel comprising spaced, wooden strips secured by adhesive and forming irregular end shapes for alignment with adjacent panels
US6378831B1 (en) * 2000-05-11 2002-04-30 John R Copeland, Jr. Air-guard corner and edge protector

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1846232A1 (en) * 2005-02-11 2007-10-24 Kaindl Flooring GmbH Panel comprising a decorative layer
US20070022694A1 (en) * 2005-07-27 2007-02-01 Mannington Mills, Inc. Connecting system for surface coverings
US7849655B2 (en) 2005-07-27 2010-12-14 Mannington Mills, Inc. Connecting system for surface coverings
US20100257801A1 (en) * 2007-10-30 2010-10-14 Gordon Anderson Tile tray
US8186116B2 (en) * 2007-10-30 2012-05-29 Unika (Australia) Pty Limited Tile tray
US20090229218A1 (en) * 2008-03-13 2009-09-17 Liu Ching-Chih Composite flooring
US20110146200A1 (en) * 2009-12-17 2011-06-23 Dang Tuan N Tile leveling process and apparatus
US8166726B2 (en) * 2009-12-17 2012-05-01 Dang Tuan N Tile leveling process and apparatus
US20120096798A1 (en) * 2010-10-21 2012-04-26 Hung-Tse Ko Modular floor tile
US11280096B1 (en) * 2018-10-31 2022-03-22 Harry Bussey Cushioning preform for flooring

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AS Assignment

Owner name: SW CO., LTD., KOREA, REPUBLIC OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KO, DEOK-GI;REEL/FRAME:013637/0175

Effective date: 20021223

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION

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