|Publication number||US3731445 A|
|Publication date||May 8, 1973|
|Filing date||Aug 3, 1970|
|Priority date||May 2, 1970|
|Also published as||DE2021503A1|
|Publication number||US 3731445 A, US 3731445A, US-A-3731445, US3731445 A, US3731445A|
|Inventors||Hoffmann R, Winkler W|
|Original Assignee||Freudenberg C|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (9), Referenced by (137), Classifications (9) |
|External Links: USPTO, USPTO Assignment, Espacenet|
Joinder of floor tiles
US 3731445 A
Floor tiles are joined by cutting away material along the edges so as to leave undercut projections extending downwardly from the bottom of the tiles. Joining of tiles is effected by using a strip provided with a pair of parallel channels into which extend the projections from two different tiles. The undercut configurations prevent the tiles from being removed by a simple vertical pull.
United States Patent [191 Hoffmann et a1.
1 1 May 8, 1973 154] JOINDER 0F FLOOR TILES  Inventors: Rudolf Hoffmann, Laudenbach/Bergstrasse; Wolfgang Winkler, Mannheim, both 01' Germany  Assignee: Carl Freudenberg, Postfach, Germany  Filed: Aug. 3, 1970  Appl. No.: 60,232
 Foreign Application Priority Data May 2, 1970 Germany ..B 20 21 503.6
 Int. Cl. ..E04f13/08  Field of Search ..52/391, 390, 385, 52/309, 461, 465, 469, 471, 492, 493, 509,
 References Cited UNITED STATES PATENTS Raidel ..52/470 2,877,877 3/1959 Davis, Jr ,.52/509 X 681,946 9/1901 BcnnctL... U52/582 2,190,818 2/1940 Wysong.... ..52/493 2,388,297 11/1945 Slaughter ..52/309 X FOREIGN PATENTS OR APPLICATIONS 647,812 12/1950 Great Britain ..52/392 584,750 11/1958 Italy ..52/309 1,175,582 11/1958 France" ..52/591 422,082 6/1947 Italy ..52/582 Primary Examiner-Alfred C. Perham Att0rneyBurgess, Dinklage & Sprung  ABSTRACT Floor tiles are joined by cutting away material along the edges so as to leave undercut projections extending downwardly from the bottom of the tiles. Joining of tiles is effected by using a strip provided with a pair of parallel channels into which extend the projections from two different tiles. The undercut configurations prevent the tiles'from being removed by a simple vertical pull.
2 Claims, 10 Drawing Figures Patented May 8, 1973 3,731,445
4 Sheets-Sheet 2 lNVfN/ORS RUDOLF FFMANN WOLFGA WINKLER BY BURGESS, DINKLAGE 8 SPRUNG ATTORNEYS.
Patented May 8, 1973 3,731,445
4 Sheets-Sheet 5 INVENTORS RUDOLF HOFFMANN WOLFGANG WINKLER BURGESS, DINKLAGE & SPRUNG ATTORNEYS Patented May 8, 1973 3,731,445
4 Sheets-Sheet 4 INVENTORS RUDOLF HOFFMANN WOLFGANG WINKLER BY BURGESS. DINKLAGE 8 SPRUNG ATTORNEYfi.
JOINDER OF FLOOR TILES The invention relates to the joining of individual flooring tiles or slabs of rubber or the like.
Hitherto, in order to prevent individual floor tiles or slabs from shifting, they have been joined together by insertion into one another, for example as shown in FIG. 1, where one floor tile is provided with a recess and the adjacent floor tile is provided with a matching projection.
This method of joinder, however, has the disadvantage that the removal of individual tiles or slabs, when they are damaged for example, is made very difficult by the fact that the slabs or tiles are inserted into one another. Instead, the entire floor assembly has to be removed until the damaged tile is reached.
It is accordingly an object of the invention to provide an improved method of joinder or tiles, such as floor tiles, which permits easy removal of individual tiles, as desired, irrespective of their location in the assembled structure.
This and other objects and advantages are realized in accordance with the present invention which provides a tile, having undercuts along its edges so shaped as to leave downwardly facing projections, together with joining strips or tracks provided with parallel channels for receiving the projections of two adjacent tiles.
The invention will be further described with reference to the accompanying drawings, wherein:
FIG. 1 is a vertical section through two abutting tiles joined in accordance with prior art teaching;
FIG. 2 is a vertical section through one embodiment of the present invention;
FIG. 3 is a vertical section through another embodiment of the invention;
FIG. 4 is a vertical section through one of the tiles shown in FIG. 2;
FIG. 5 is a vertical section through the joining strip of FIG. 2;
FIG. 6 is a vertical section through one of the tiles shown in FIG. 3;
FIG. 7 is a vertical section through the joining strip of FIG. 3;
FIG. 8 is a perspective view of a different embodiment of a joining strip;
FIG. 9 is a perspective view of still another embodiment of ajoining strip; and
FIG. 10 is a bottom perspective view of the corner of a tile suitable forjoinder by strips such as shown in FIG. 8.
Referring now more particularly to the drawings, in FIG. 2 there is shown an assembly of two tiles or slabs 2 and 3 and a joining strip or track I.
The joining strip 1, which may be made of rubber and which may be about 3 cm. wide, is first placed on the floor. As can be seen in FIG. 5, it comprises a base from which there extend projections or elevations 6, 7 and 8; elevations 6 and -7, and 7 and 8 define therebetween a pair of channels which in cross-section are undercut, i.e. they are wider near their bottom than near their tops and they extend laterally below a shoulder.
FIG. 4 shows one embodiment of the tiles according to the invention, profiled for use with the strip of FIG. 5. The usually rectangular or square tiles have on each side a projecting edge 4 and 4', from which a double tongue 5 and 5', respectively, projects. As viewed from the bottom surface of the tile there is a peripheral projection extending toward but terminating short of said surface. The projection defines a recessed channel with and about the bulk of the tile. In order to lay these tiles, the double tongue 5 of one tile is forced into the left track-like channel between the elevations 6, 7, and the double tongue 5 of another tile is forced into the right track-like channel between the elevations 7, 8.
In FIG. 6 another embodiment is shown. Here the tile again has a projecting edge at the margins, but only one bent tongue projects therefrom, which is identified in FIG. 6 with the reference numbers 9 and 10, respectively.
FIG. 7 shows a cross section of the strip required for the laying of the tiles of FIG. 6. It is of simpler construction than the strip according to FIG. 5 in that the center elevation does not extend upwardly as for as the lateral elevations.
The result of the joining together of the tiles of FIG. 6 by means of the strip in FIG. 7 is shown in cross section in FIG. 3. Even though only one projection is provided per tile edge, because it is canted away from the tile edge and tucks into the undercut of the channel of the locking strip, firm joinder is still achieved.
In order further to increase the resistance of the tiles laid by the above method against shifting it is desirable to use so-called crosses as shown in FIG. 8. These are a further development of the strips with the elevations 6, 7 and 8 of FIG. 5. While the strips of the above embodiment can be of any desired length, in the present case the length of the strip is limited to about one-fourth of the length of the edge of the tile. At the same time, a second strip or portion of the same length is connected medially of the first portion at an angle of Four tiles can be joined together with a strip of this kind. To each corner of the structure produced in this manner and consisting of four tiles, these crossed strips are again attached and additional joining is performed. In this manner any desired area can be covered with tiles. The tiles laid by means of these crosses have a greater resistance to shifting on the floor.
The length of the four arms of the crosses can be made such that they extend to the middle of each tile edge. In this case the extremities of adjacent crosses meet in the middle of a tile edge. The edge of each tile is thus embedded all along its length in a strip having the elevations 6, 7 and 8.
It is also possible, however, to use crosses having shorter extremities. In this case more or less of each tile edge is free of supporting strips in its center. In this case the gaps can be filled by means of strips extending only longitudinally, according to FIGS. 5, 7 or 9, so that a conttuous supporting of the tile edges on tracks or crosses is achieved all along the edge. FIG. 10 is a perspective view of the corner of a floor tile that is laid with the aid of the cross.
FIG. 9 shows another embodiment of strips in which the channels are sectors of a circl of more than The projections on the tiles for joinder thereby will be of approximately the same shape as the channels. The shape of the channels and projections may be elliptical segments in place of circular segments, with similar effect.
Either the tiles or the joining strips or both are made of a yieldable, somewhat resilient material such as rubber, vinyl, or the like. In this manner'the projections either on the underface of the tiles near the edges or on theupper face of the joining strip can give slightly as is needed during connection or separation. The bifurcated projection of FIG. 4 makes connection easier since the components have room to move laterally. The undercut surfaces'and shoulders prevent separation by a simple vertical pull. As can best be seen in FIGS. 2 and 3, at the corners there is a small amount of space between mating members, which space allows for some expansion and for release of tensions which might result from minor imperfections in the tiles, strips or surface on which the tiles are placed.
The projections may be all along two opposite spaced edges of the tile which is preferably rectangular or square. In this manner the joining strips can be continuous and parallel. If the projections are provided on all four edges of a rectangular tile, either transverse strips can be omitted or special .measures taken to effectjoinde'r cross-wise of the elongated strips or crosses such as shown in FIG. 8 may be employed. If the tiles are hexagonal, then three tiles meet at each corner and a trifurcated joining strip patterned after that in FIG. 8 may be employed.
As noted, the strips may be about 3 cm. wide in which case the channels will be approximately 1 cm.
What is claimed is:
1. A floor covering assembly comprising a plurality of abutting rectangular tiles and joining strips, said tiles as viewed from above together making up a continuous surface, each tile comprising a solid body of predetermined thickness and undercut in its lower face substantially about its entire periphery so as to leave a projection whereby it can be held to a locking strip, each tile being provided at each corner in its underface with a projection extending toward but terminating short of the bottom surface of the tile, each strip comprising an elongated member of predetermined thickness provided in its upper face with a pair of parallel undercut channels for receiving the projections of two tiles and thereby holding them together, the joining strips including a second pairof channels extending at an angle to the first pair, the bottoms of said strips defining substantially the same plane as the bottoms of said tiles, material being provided at the intersections of the channels in a locking strip to form independent recesses for receiving the corner projections of tiles.
2. An assembly according to claim 1 wherein each tile has cut back edges, said tile as viewed from the bottom having a recessed channel about its periphery defined between said bottom surface and said projection which extends from the top surface but terminates short of said bottom surface, said projection including a portion extending toward said bottom and inwardly from the edges, whereby said tile is held into said assembl with other tiles-by said locking strips which are suitab y contoured to receive sald pro ections, said tiles being in abutting relation and exclusively making up the top surface with said locking strips being hidden therebelow.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US681946 *||May 15, 1901||Sep 3, 1901||George H Bennett||Floor-tile.|
|US2190818 *||Jan 11, 1939||Feb 20, 1940||Wysong Charles F||Metal tiling|
|US2388297 *||Jul 10, 1941||Nov 6, 1945||Extruded Plastics Inc||Composite article, including extruded sections|
|US2877877 *||Sep 23, 1957||Mar 17, 1959||Davis Jr Hugh N||Panel wall construction|
|US3066773 *||Nov 4, 1960||Dec 4, 1962||Raidel John E||Interlocking support for sheet-like elements|
|FR1175582A *|| ||Title not available|
|GB647812A *|| ||Title not available|
|IT422082A *|| ||Title not available|
|IT584750A *|| ||Title not available|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3946529 *||May 31, 1974||Mar 30, 1976||Jean Chevaux||Floor for sports and in particular for roller skating|
|US4270325 *||Mar 19, 1979||Jun 2, 1981||Luigi Mandelli||Device for installing tiles|
|US4409873 *||Sep 29, 1980||Oct 18, 1983||Peter Kundikoff||Modular straight edge|
|US4449346 *||Nov 12, 1980||May 22, 1984||Tremblay J Gerard||Panel assembly|
|US4504168 *||Mar 27, 1981||Mar 12, 1985||Miller Michael C||Connecting structure|
|US4893132 *||Oct 28, 1988||Jan 9, 1990||Radiation Systems, Inc. Technical Products Division||Assembly system for maintaining reflector segments of an antenna in precision alignment|
|US5797237 *||Feb 28, 1997||Aug 25, 1998||Standard Plywoods, Incorporated||Flooring system|
|US6023907 *||Nov 18, 1998||Feb 15, 2000||Valinge Aluminium Ab||Method for joining building boards|
|US6182410||Jul 19, 1999||Feb 6, 2001||Všlinge Aluminium AB||System for joining building boards|
|US6324803||Oct 5, 2000||Dec 4, 2001||VšLINGE ALUMINUM AB||System for joining building boards|
|US6446405||Oct 6, 2000||Sep 10, 2002||Valinge Aluminium Ab||Locking system and flooring board|
|US6490836||Dec 23, 1999||Dec 10, 2002||Unilin Beheer B.V. Besloten Vennootschap||Floor panel with edge connectors|
|US6510665||Sep 18, 2001||Jan 28, 2003||Valinge Aluminum Ab||Locking system for mechanical joining of floorboards and method for production thereof|
|US6516579||Mar 24, 2000||Feb 11, 2003||Tony Pervan||System for joining building boards|
|US6532709||Mar 19, 2002||Mar 18, 2003||Valinge Aluminium Ab||Locking system and flooring board|
|US6536178 *||Sep 29, 2000||Mar 25, 2003||Pergo (Europe) Ab||Vertically joined floor elements comprising a combination of different floor elements|
|US6588166||Jan 29, 2001||Jul 8, 2003||Pergo (Europe) Ab||Flooring panel or wall panel and use thereof|
|US6606834||Jul 16, 2002||Aug 19, 2003||Pergo (Europe) Ab||Flooring panel or wall panel and use thereof|
|US6715253||Sep 18, 2001||Apr 6, 2004||Valinge Aluminium Ab||Locking system for floorboards|
|US6751916 *||May 31, 2000||Jun 22, 2004||Sandy A. Ritzer||Decorative structure with slotted grid and detachably secured tiles|
|US6763643 *||Sep 27, 1999||Jul 20, 2004||Pergo (Europe) Ab||Flooring material comprising flooring elements which are assembled by means of separate joining elements|
|US6769217||Oct 7, 2002||Aug 3, 2004||Premark Rwp Holdings, Inc.||Interconnecting disengageable flooring system|
|US6769218||Jan 14, 2002||Aug 3, 2004||Valinge Aluminium Ab||Floorboard and locking system therefor|
|US6794001||Jul 25, 2002||Sep 21, 2004||Mannington Mills, Inc.||Flooring with a 2-part adhesive|
|US6851241||Jan 14, 2002||Feb 8, 2005||Valinge Aluminium Ab||Floorboards and methods for production and installation thereof|
|US6874292||Oct 9, 2002||Apr 5, 2005||Unilin Beheer Bv, Besloten Vennootschap||Floor panels with edge connectors|
|US6880305||Jun 17, 2002||Apr 19, 2005||Valinge Aluminium Ab||Metal strip for interlocking floorboard and a floorboard using same|
|US6898913||Sep 27, 2002||May 31, 2005||Valinge Aluminium Ab||Locking system for mechanical joining of floorboards and method for production thereof|
|US6918220||Feb 7, 2003||Jul 19, 2005||Valinge Aluminium Ab||Locking systems for floorboards|
|US6920732 *||Mar 18, 2004||Jul 26, 2005||Pergo (Europe) Ab||Flooring material comprising flooring elements which are assembled by means of separate joining elements|
|US6922964||Feb 11, 2003||Aug 2, 2005||Valinge Aluminium Ab||Locking system and flooring board|
|US6928779||Oct 8, 2002||Aug 16, 2005||Unilin Beheer Bv, Besloten Vennootschap||Floor panels with edge connectors|
|US6955020||Oct 9, 2002||Oct 18, 2005||Unilin Beheer Bv, Besloten Vennootschap||Floor panels with edge connectors|
|US6966161 *||Feb 10, 2003||Nov 22, 2005||Pergo (Europe) Ab||Vertically joined floor elements comprising a combination of different floor elements|
|US6993877||Oct 9, 2002||Feb 7, 2006||Unilin Beheer B.V., Besloten Vennootschap||Floor panels with edge connectors|
|US7003925||Oct 6, 2004||Feb 28, 2006||Valinge Aluminum Ab||Locking system for floorboards|
|US7040068||Sep 27, 2002||May 9, 2006||Unilin Beheer B.V., Besloten Vennootschap||Floor panels with edge connectors|
|US7051486||Apr 15, 2003||May 30, 2006||Valinge Aluminium Ab||Mechanical locking system for floating floor|
|US7086205||Jul 25, 2002||Aug 8, 2006||Valinge Aluminium Ab||System for joining building panels|
|US7121059||May 7, 2003||Oct 17, 2006||Valinge Innovation Ab||System for joining building panels|
|US7131242||Aug 18, 2003||Nov 7, 2006||Pergo (Europe) Ab||Flooring panel or wall panel and use thereof|
|US7137229||Apr 15, 2003||Nov 21, 2006||Valinge Innovation Ab||Floorboards with decorative grooves|
|US7171791||Sep 3, 2004||Feb 6, 2007||Valinge Innovation Ab||Floorboards and methods for production and installation thereof|
|US7275350||Aug 6, 2005||Oct 2, 2007||Valinge Innovation Ab||Method of making a floorboard and method of making a floor with the floorboard|
|US7328536||Jun 9, 2006||Feb 12, 2008||Unilin Beheer B.V.||Floor panels with edge connectors|
|US7386963||Feb 3, 2005||Jun 17, 2008||Valinge Innovation Ab||Locking system and flooring board|
|US7398625||Jan 30, 2006||Jul 15, 2008||Valinge Innovation Ab||Locking system for floorboards|
|US7431979||Oct 31, 2003||Oct 7, 2008||Kronotec Ag||Wood fiberboard|
|US7444791||Nov 17, 2000||Nov 4, 2008||Valinge Innovation Ab||Locking system and flooring board|
|US7454875||Oct 22, 2004||Nov 25, 2008||Valinge Aluminium Ab||Mechanical locking system for floor panels|
|US7467499||Jun 9, 2006||Dec 23, 2008||Unilin Beheer B.V., Besloten Vennootschap||Floor panels with edge connectors|
|US7484337||Nov 10, 2003||Feb 3, 2009||Kronotec. Ag||Floor panel and method of laying a floor panel|
|US7484338||Sep 18, 2001||Feb 3, 2009||Valinge Innovation Ab||Locking system, floorboard comprising such a locking system, as well as method for making floorboards|
|US7497058||Jun 3, 2002||Mar 3, 2009||Pergo (Europe) Ab||Flooring panel or wall panel and use thereof|
|US7506481||Dec 17, 2003||Mar 24, 2009||Kronotec Ag||Building board for use in subfloors|
|US7516588||Jan 13, 2005||Apr 14, 2009||Valinge Aluminium Ab||Floor covering and locking systems|
|US7550202||Mar 10, 2005||Jun 23, 2009||Kronotec Ag||Insulation board made of a mixture of wood base material and binding fibers|
|US7552568||Nov 21, 2005||Jun 30, 2009||Pergo (Europe) Ab||Vertically joined floor elements comprising a combination of different floor elements|
|US7562431||Jan 18, 2005||Jul 21, 2009||Flooring Technologies Ltd.||Method for bringing in a strip forming a spring of a board|
|US7614193 *||Oct 26, 2004||Nov 10, 2009||Tilediy, Llc||Underlayment for tile surface|
|US7614197||Nov 14, 2003||Nov 10, 2009||Premark Rwp Holdings, Inc.||Laminate flooring|
|US7617647 *||Jun 15, 2005||Nov 17, 2009||Tilediy, Llc||Underlayment for tile surface|
|US7617651||Oct 31, 2003||Nov 17, 2009||Kronotec Ag||Floor panel|
|US7621092||Feb 9, 2007||Nov 24, 2009||Flooring Technologies Ltd.||Device and method for locking two building boards|
|US7637068||Feb 2, 2004||Dec 29, 2009||Valinge Innovation Ab||Mechanical locking system for floorboards|
|US7641963||Oct 31, 2003||Jan 5, 2010||Kronotec Ag||Panel and process for producing a panel|
|US7644557||Aug 31, 2005||Jan 12, 2010||Unilin Beheer B.V., Besloten Vennootschap||Method of making floor panels with edge connectors|
|US7651751||Feb 10, 2004||Jan 26, 2010||Kronotec Ag||Building board|
|US7654401 *||May 4, 2006||Feb 2, 2010||Donald Obergoenner||Wood joint for a barrelhead|
|US7661238||Aug 31, 2005||Feb 16, 2010||Unilin Beheer B.V., besloten, vennootshap||Floor panels with edge connectors|
|US7677001||Oct 29, 2004||Mar 16, 2010||Valinge Innovation Ab||Flooring systems and methods for installation|
|US7678425||Mar 4, 2004||Mar 16, 2010||Flooring Technologies Ltd.||Process for finishing a wooden board and wooden board produced by the process|
|US7707783 *||May 11, 2006||May 4, 2010||Lifetime Products, Inc.||Modular enclosure|
|US7721503||Jul 9, 2007||May 25, 2010||Valinge Innovation Ab||Locking system comprising a combination lock for panels|
|US7739849||Dec 9, 2003||Jun 22, 2010||Valinge Innovation Ab||Floorboards, flooring systems and methods for manufacturing and installation thereof|
|US7757452||Mar 31, 2003||Jul 20, 2010||Valinge Innovation Ab||Mechanical locking system for floorboards|
|US7775007||Jul 25, 2002||Aug 17, 2010||Valinge Innovation Ab||System for joining building panels|
|US7779596||Aug 26, 2004||Aug 24, 2010||Valinge Innovation Ab||Locking system for mechanical joining of floorboards and method for production thereof|
|US7790293||Apr 27, 2006||Sep 7, 2010||Flooring Technologies Ltd.||Process for finishing a wooden board and wooden board produced by the process|
|US7805902||Mar 13, 2007||Oct 5, 2010||Tiger Claw, Inc.||Fastener for grooved or slotted decking members|
|US7816001||Jun 20, 2008||Oct 19, 2010||Kronotec Ag||Insulation board made of a mixture of wood base material and binding fibers|
|US7818939 *||Jun 5, 2007||Oct 26, 2010||Irvin Bearinger||Snap lock joint|
|US7823359||Aug 25, 2006||Nov 2, 2010||Valinge Innovation Ab||Floor panel with a tongue, groove and a strip|
|US7827749||Dec 22, 2006||Nov 9, 2010||Flooring Technologies Ltd.||Panel and method of manufacture|
|US7841150||Jul 9, 2007||Nov 30, 2010||Valinge Innovation Ab||Mechanical locking system for floorboards|
|US7845140||Mar 25, 2004||Dec 7, 2010||Valinge Innovation Ab||Flooring and method for installation and manufacturing thereof|
|US7849655||Jul 27, 2005||Dec 14, 2010||Mannington Mills, Inc.||Connecting system for surface coverings|
|US7854986||Sep 7, 2006||Dec 21, 2010||Flooring Technologies Ltd.||Building board and method for production|
|US7856784||Aug 8, 2008||Dec 28, 2010||Pergo AG||Flooring panel or wall panel and use thereof|
|US7861482||Jun 29, 2007||Jan 4, 2011||Valinge Innovation Ab||Locking system comprising a combination lock for panels|
|US7886497||Dec 2, 2004||Feb 15, 2011||Valinge Innovation Ab||Floorboard, system and method for forming a flooring, and a flooring formed thereof|
|US7891149 *||Oct 8, 2009||Feb 22, 2011||Tilediy, Llc||Underlayment for tile surface|
|US7896571 *||Oct 9, 1999||Mar 1, 2011||Akzenta Paneele + Profile Gmbh||Panel and panel fastening system|
|US7908815||Jul 11, 2007||Mar 22, 2011||Valinge Innovation Ab||Mechanical locking of floor panels with a flexible bristle tongue|
|US7908816||Jan 30, 2004||Mar 22, 2011||Kronotec Ag||Device for connecting building boards, especially floor panels|
|US7926234||Mar 20, 2003||Apr 19, 2011||Valinge Innovation Ab||Floorboards with decorative grooves|
|US7930862||Jan 5, 2007||Apr 26, 2011||Valinge Innovation Ab||Floorboards having a resilent surface layer with a decorative groove|
|US8003168||Sep 2, 2004||Aug 23, 2011||Kronotec Ag||Method for sealing a building panel|
|US8011155||Jul 12, 2010||Sep 6, 2011||Valinge Innovation Ab||Locking system for mechanical joining of floorboards and method for production thereof|
|US8016969||Jun 18, 2009||Sep 13, 2011||Flooring Technologies Ltd.||Process for finishing a wooden board and wooden board produced by the process|
|US8028486||Jul 26, 2002||Oct 4, 2011||Valinge Innovation Ab||Floor panel with sealing means|
|US8033074||May 27, 2010||Oct 11, 2011||Valinge Innovation Ab||Mechanical locking of floor panels with a flexible bristle tongue|
|US8038363 *||Jan 22, 2009||Oct 18, 2011||Akzenta Paneele+Profile GmbH||Panel and panel fastening system|
|US8042311||Dec 4, 2007||Oct 25, 2011||Valinge Innovation Ab||Mechanical locking system for panels and method of installing same|
|US8042484||Oct 4, 2005||Oct 25, 2011||Valinge Innovation Ab||Appliance and method for surface treatment of a board shaped material and floorboard|
|US8061104||May 20, 2005||Nov 22, 2011||Valinge Innovation Ab||Mechanical locking system for floor panels|
|US8079196||Dec 7, 2010||Dec 20, 2011||Valinge Innovation Ab||Mechanical locking system for panels|
|US8122670 *||Oct 31, 2006||Feb 28, 2012||Handy Tiling Holding B.V.||System for setting tiles, tile assembly and joining element for use in the system, method for setting tiles, and tile floor repair method|
|US8123060 *||Jan 12, 2010||Feb 28, 2012||Donald Obergoenner||Wood joint for a barrelhead|
|US8171692||Jul 9, 2007||May 8, 2012||Valinge Innovation Ab||Mechanical locking system for floor panels|
|US8176698||Sep 20, 2004||May 15, 2012||Kronotec Ag||Panel|
|US8215078||Feb 15, 2005||Jul 10, 2012||Všlinge Innovation Belgium BVBA||Building panel with compressed edges and method of making same|
|US8234831||May 11, 2011||Aug 7, 2012||Všlinge Innovation AB||Locking system for mechanical joining of floorboards and method for production thereof|
|US8245477||Apr 8, 2003||Aug 21, 2012||Všlinge Innovation AB||Floorboards for floorings|
|US8245478||Mar 11, 2011||Aug 21, 2012||Všlinge Innovation AB||Set of floorboards with sealing arrangement|
|US8250825||Apr 27, 2006||Aug 28, 2012||Všlinge Innovation AB||Flooring and method for laying and manufacturing the same|
|US8257791||Apr 1, 2008||Sep 4, 2012||Kronotec Ag||Process of manufacturing a wood fiberboard, in particular floor panels|
|US8293058||Nov 8, 2010||Oct 23, 2012||Valinge Innovation Ab||Floorboard, system and method for forming a flooring, and a flooring formed thereof|
|US8341914||Oct 22, 2010||Jan 1, 2013||Valinge Innovation Ab||Mechanical locking of floor panels with a flexible bristle tongue|
|US8341915||Oct 21, 2005||Jan 1, 2013||Valinge Innovation Ab||Mechanical locking of floor panels with a flexible tongue|
|US8359805||Aug 1, 2011||Jan 29, 2013||Valinge Innovation Ab||Mechanical locking of floor panels with a flexible bristle tongue|
|US8381477||Jul 11, 2008||Feb 26, 2013||Valinge Innovation Ab||Mechanical locking of floor panels with a flexible tongue|
|US8387327||Oct 5, 2011||Mar 5, 2013||Valinge Innovation Ab||Mechanical locking system for floor panels|
|US8402709||Jul 11, 2006||Mar 26, 2013||Pergo (Europe) Ab||Flooring panel or wall panel and use thereof|
|US8429870||Nov 30, 2010||Apr 30, 2013||Mannington Mills, Inc.||Connecting system for surface coverings|
|US8475871||Oct 29, 2010||Jul 2, 2013||Flooring Technologies Ltd.||Building board and method for production|
|US8511031||Jul 18, 2012||Aug 20, 2013||Valinge Innovation Ab||Set F floorboards with overlapping edges|
|US8516767||Oct 4, 2005||Aug 27, 2013||Pergo (Europe) Ab||Joint for panels|
|US8579768||May 8, 2008||Nov 12, 2013||Nike, Inc.||Training ladder formed with polygon segments|
|US8613826||Sep 13, 2012||Dec 24, 2013||Valinge Innovation Ab||Floorboard, system and method for forming a flooring, and a flooring formed thereof|
|US20110067340 *||Sep 18, 2009||Mar 24, 2011||Snap Lock Industries, Inc.||Modular floor tile with connector system|
|US20130042563 *||Aug 14, 2012||Feb 21, 2013||Valinge Flooring Technology Ab||Mechanical locking system for floor panels|
|US20130167467 *||Jun 15, 2011||Jul 4, 2013||Spanolux N.V.- Div. Balterio||Panel coupling assembly|
|EP1261786A1 *||Feb 14, 2001||Dec 4, 2002||Perstorp Flooring Ab||Vertically joined floor elements comprising a combination of different floor elements|
|EP1276941A1 *||Feb 14, 2001||Jan 22, 2003||Perstorp Flooring Ab||A flooring material comprising sheet-shaped floor elements which are joined by means of joining members|
|EP2144677A1 *||May 8, 2008||Jan 20, 2010||Sparq Products, Inc.||Training ladder formed with polygon segments|
|WO2004011740A2||Jul 22, 2003||Feb 5, 2004||Mannington Mills||Floor panel with a two components adhesive|