Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3720027 A
Publication typeGrant
Publication dateMar 13, 1973
Filing dateFeb 22, 1971
Priority dateFeb 20, 1970
Also published asCA951078A1, DE2108141A1
Publication numberUS 3720027 A, US 3720027A, US-A-3720027, US3720027 A, US3720027A
InventorsChristensen P
Original AssigneeBruun & Soerensen
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Floor structure
US 3720027 A
Abstract
A floor structure for covering an ice rink and comprising elements adapted to be joined together by means of a key and tongue, characterized in that it comprises elements each of which has a wooden core and is covered on all sides by a vapor-tight material, preferably plastics.
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

*1 United States Patent 1 1 1 Christensen 1 1March 13, 1973 1 1 FLOOR STRUCTURE 3,150,032 9/1964 Rubenstein ..52/DIG.7

3,145,502 8/1964 Rubenstein [75] Inventor: Poul Sondergaard Christensen, 3,579,410 5/1971 Barrett Ronde, Denmark 3,579,941 5/1971 Tibbals ..52/390 Assignee: Bruun 8: Sorensen A/S, Aaboulevarden, Aarhus, Denmark Filed: Feb. 22, 1971 Appl. No.: 117,674

Foreign Application Priority Data Feb. 20, 1970 Denmark ..835

U.S. Cl. ..52/309, 52/393, 52/589, 4 52/593, 56/624, 94/35 Int. Cl. ..E04f 15/06 Field of Search ..94/3, 35, 13, 4; 52/589, 309, 52/403, 408, 409, 393, 390, 391, 392, 595, 594, 593, 592, 591; 161/37, 38, 39; 117/116 References Cited UNITED STATES PATENTS 10/1915 Hopkinson ..94/13 OTHER PUBLICATIONS German printed application DAS 1137851 October 1962.

Primary ExaminerJohn E. Murtagh Attorney-Fleit, Gipple & Jacobson 5 Claims, 3 Drawing Figures 39 \ISP//// N 23 F-i1 27 23 25V 34 27 PATENTEDNARI 3l573 3,720,027

INVENTOR Paul 5. Clarisensen BY 97; gy @fim/am ATTORNEYS noon STRUCTURE This invention relates to a floor structure for covering an icerink and comprising elements adapted to be joined together bymeans of a key and tongue. This floor structure aims at increasing the utilization ratio of centers which are normally used as skating rinks, by providing a floor space which in case of special arrangements such as handball matches, gymnastic shows and the like, can rapidly be put down directly on top of the ice surface. I

Such a floor must meet a number of quite specific requirements, in that it shall not only be resistant to the rather extraordinary conditions with respect to temperature and moisture but shall also be easy and rapid to put down and so cheap in production that it will be a paying proposition for an ice rink center to acquire it.

It is the aim of this invention to provide a floor structure by means of which the said specific advantages are achieved, and this aim has been accomplished by providing floor elements each of which has a wooden core and is covered on all sides by a vapor-tight material, preferably plastics.

The use of a wooden core makes the element relatively cheap because in proportion to dimensions and strength wood is a low cost material, besides which'the elasticity of wood makes it suitable for a floor structure. If this wooden core is carefully covered on all sides by a vapor-tight material moisture is prevented from penetrating to the wood and destroying it. Moreover a good seal between the individual elements will be obtained because also the surface portions constituted by the key and tongue are covered by the vapor tight material.

A floor structure like this might in fact be put down directly on the icerink, but it may be desirable to obtain extra resiliency and it may also be an advantage to provide increased insulation to prevent the dissipation of heat to the icerink and this may conveniently be done according to the invention by covering the under surface of the element with a padding of elastically resilient, water-impermeable and heat-insulating material. This padding on the under face of the floor element may be of any suitable material, but according to the invention it will be particularly expedient to make the padding from foamed plastics with closed pores. On account of the character of this material moisture cannot penetrate through it and the padding will be of a satisfactory resiliency, partly as a result of the elastic properties of the material itself, partly as a result ofthe compressibility of the gas contained in the pores.

The enclosure of the wooden core in a complete coat of plastics may be performed in various ways, for instance by direct moulding, but in a very expedient embodiment of the invention a sheet of plastics is attached to the upper and under surfaces while the edge faces are covered by plastics fillets in which the key and tongue are provided. This procedure is simple and cheap, particularly because the plastics sheets may be ordinary calendered or extruded material; the plastics fillets for covering the edge faces of the wooden core may be made by extrusion and as the key and tongue are to be provided in the fillets the wooden core shall have the simple form of a parallelepiped.

It will be expedient according to the invention to glue the cover sheets on to the upper and lower faces of the cores, while the fillets, besides being glued might also be wedged on the edge faces of the core and moreover:

By a suitable construction of the key-tongue connection a safe joint between'the elements may be provided, and besides the key-tongue joint it will be expedient according to the invention to provide a rigid frame enclosing the total floor area. This ensures that the elements will be retained in the proper position relatively to each other without any other mode of attachment which might affect the complete seal of the wooden core.

The invention will be explained here in greater detail with reference to the drawing, in which FIG. 1 shows a corner of a floor structure according to the invention, and

FIGS. 2 and 3 show two different embodiments of the elements of a floor structure according to the invention.

FIG. 1 shows a corner of a floor structure comprising a plurality of elements 1 and 2, elements 1 being provided with a tongue along all four edges and elements 2 with corresponding keys along all four edges.

The whole of the floor area of the structure is enclosed in a rigid frame 5 which holds the elements effectively in position.

FIG. 2 presents a vertical section through adjoining edges of two elements 11 and 12 corresponding to elements 1 and 2 in FIG. 1. Each element comprises a wooden core, 15 and 16 respectively, and the core 15 has a tongue 13 along its edges while the core 16 is provided with keys along its edges. The cores 15 and 16 are completely covered by a layer of vapor-tight plastics material, 17 and 18 respectively, and the dimensions of the tongue 13 and the key 14 are adapted to the thickness of the cover sheets 17 and 18 so'that key and tongue with coating will fit tightly. To the under face of each element has further been glued a padding 19 of foamed plastics with closed pores, so that each element rests on the ice rink by means of this padding 19. 7

FIG. 3 illustrates another embodiment of such elements, 21 and 22 respectively, which also comprise a wooden core, 25 and 26 respectively, and the element 21 is provided with a recess 33 along the edges in which is inserted a barbed gluing fillet 30 of an edge fillet 32 which is provided also with a tongue 23 and is moreover glued to the edge face of the wooden core 25. The upper and under surfaces of the core 25 are covered by gas-tight plastics sheets 27, and to the under face of the whole element is attached a padding 29 of foamed plastics with closed pores. The element 22 is provided in its side faces with a recess 34 in which is inserted a barbed gluing fillet 36 of an edge fillet 37 formed with a key 39, and also the element 22 is covered on the upper and under surfaces by agas-tight plastics sheet 37 and on the under face by a foamed plastics padding 29. All parts are glued securely together so that the wooden core is effectively protected against moisture, and in the form shown here the elements can be deposited directly on the ice rink. It should be noted that, besides providing a certain elasticity, the use of the padding 19 and 29 also ensures that the temperature of the floor surface will always be maintained above the dew point ofthe air in the room.

What we claim is:

1. A floor structure for covering an ice rink comprising floor elements adapted to be joined together by means of key and tongue joining elements, each floor element comprising a wooden core, gas-tight plastic sheets covering the upper and lower surfaces of said wooden core, and gas-tight plastic fillets having one of said key and tongue joining elements covering the edge of said wooden core such that said wooden core is completely covered by gas-tight plastic material.

2. A floor structure according to claim 1 wherein said plastic sheets are glued to the upper and lower surfaces of said wooden core and said plastic fillets are glued to the edges ofsaid wooden core and to the edges of said plastic sheets.

3. A floor structure according to claim 2 wherein said plastic fillets have a longitudinal wedge and are further connected to said wooden core by said longitudinal wedge.

4. A floor structure according to claim 3 wherein said longitudinal wedge is barbed.

5. A floor structure according to claim 1 wherein each floor element is provided on the surface contacting the ice rink with a padding of elastically resilient, water-impermeable and heat-insulating foamed plastics with closed pores.

* a u: m

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1158051 *Sep 23, 1911Oct 26, 1915Ernest HopkinsonFloor-covering.
US3145502 *Apr 1, 1955Aug 25, 1964David RubensteinStructural element and method of making
US3150032 *Jun 25, 1956Sep 22, 1964Rubenstein DavidAbuse resistant articles of manufacture and method of making
US3579410 *Sep 6, 1967May 18, 1971American Novawood CorpParquet flooring block and method of making same
US3579941 *Nov 19, 1968May 25, 1971Howard C TibbalsWood parquet block flooring unit
Non-Patent Citations
Reference
1 *German printed application DAS 1137851 October 1962.
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3845593 *Sep 12, 1972Nov 5, 1974G ZenLightweight concrete panel
US4007569 *Feb 2, 1976Feb 15, 1977Hascall Norman EMethod and means for sealing door edges
US4316297 *Apr 14, 1980Feb 23, 1982Nissen CorporationTumbling floor
US4376593 *Jul 7, 1980Mar 15, 1983Rudolf SchaeferBody assembly
US4599842 *Aug 20, 1984Jul 15, 1986James CounihanPlanar section fastening system
US4676038 *May 29, 1985Jun 30, 1987Les Industries Doyon LteeCabinet-making
US4895080 *Feb 10, 1989Jan 23, 1990Thomas Peter CInterlocking freight pallet
US4996817 *Oct 1, 1987Mar 5, 1991Nelson Thomas JFurniture edge construction
US5022200 *Nov 29, 1989Jun 11, 1991Sico IncorporatedInterlocking sections for portable floors and the like
US5323564 *Oct 2, 1992Jun 28, 1994Showtech, Inc.Performance stage deck and assembly method
US5422155 *Nov 18, 1993Jun 6, 1995Spence, Jr.; Daniel D.Composite laminated noteboard
US5469685 *May 26, 1992Nov 28, 1995Ralph Wilson Plastics CompanyFurniture edge construction
US5553432 *Sep 9, 1994Sep 10, 1996Levin; MichaelHorizontal forming block with curved side wall for architectural structures
US5613342 *Aug 14, 1995Mar 25, 1997Wilsonart International Inc.Furniture edge construction
US5820798 *Dec 9, 1996Oct 13, 1998Stageright CorporationMethod of making an ice rink cover
US5983584 *Jan 2, 1998Nov 16, 1999Stageright CorporationIce rink cover
US6536178 *Sep 29, 2000Mar 25, 2003Pergo (Europe) AbVertically joined floor elements comprising a combination of different floor elements
US6591568Sep 29, 2000Jul 15, 2003Pergo (Europe) AbFlooring material
US6601359Jun 12, 2001Aug 5, 2003Pergo (Europe) AbFlooring panel or wall panel
US6647690Sep 27, 1999Nov 18, 2003Pergo (Europe) AbFlooring material, comprising board shaped floor elements which are intended to be joined vertically
US6786019 *Mar 14, 2001Sep 7, 2004Flooring Industries, Ltd.Floor covering
US6794001Jul 25, 2002Sep 21, 2004Mannington Mills, Inc.Flooring with a 2-part adhesive
US6854235Nov 14, 2003Feb 15, 2005Pergo (Europe) AbFlooring material, comprising board shaped floor elements which are intended to be joined vertically
US6931811Mar 25, 2003Aug 23, 2005Flooring Industries, Ltd.Floor covering, floor panels for forming such floor covering, and method for realizing such floor panels
US6966161 *Feb 10, 2003Nov 22, 2005Pergo (Europe) AbVertically joined floor elements comprising a combination of different floor elements
US7055290Aug 24, 2004Jun 6, 2006Flooring Industries Ltd.Floor covering, floor panels for forming such floor covering, and method for realizing such floor panels
US7100339Jun 14, 2004Sep 5, 2006Framesaver, LpGarage door system with integral environment resistant members
US7121058Nov 4, 2002Oct 17, 2006Pergo (Europe) AbBuilding panels
US7131242Aug 18, 2003Nov 7, 2006Pergo (Europe) AbFlooring panel or wall panel and use thereof
US7249445Nov 9, 2006Jul 31, 2007Flooring Industries Ltd.Floor covering, floor panels for forming such floor covering, and method of realizing such floor panels
US7332053Sep 13, 2002Feb 19, 2008{acute over (P)}ergo (Europe) ABProcess for sealing of a joint
US7431979Oct 31, 2003Oct 7, 2008Kronotec AgWood fiberboard
US7441385Oct 2, 2006Oct 28, 2008Pergo (Europe) AbBuilding panels
US7451578 *Jul 4, 2002Nov 18, 2008Akzenta Paneele + Profile GmbhPanel and fastening system for such a panel
US7484337Nov 10, 2003Feb 3, 2009Kronotec. AgFloor panel and method of laying a floor panel
US7497058Jun 3, 2002Mar 3, 2009Pergo (Europe) AbFlooring panel or wall panel and use thereof
US7506481Dec 17, 2003Mar 24, 2009Kronotec AgBuilding board for use in subfloors
US7550202Mar 10, 2005Jun 23, 2009Kronotec AgInsulation board made of a mixture of wood base material and binding fibers
US7552568Nov 21, 2005Jun 30, 2009Pergo (Europe) AbVertically joined floor elements comprising a combination of different floor elements
US7562431Jan 18, 2005Jul 21, 2009Flooring Technologies Ltd.Method for bringing in a strip forming a spring of a board
US7617651Oct 31, 2003Nov 17, 2009Kronotec AgFloor panel
US7621092Feb 9, 2007Nov 24, 2009Flooring Technologies Ltd.Device and method for locking two building boards
US7632561Apr 10, 2006Dec 15, 2009Flooring Industries Limited, SarlLaminate floor covering panel having wood pattern
US7641963Oct 31, 2003Jan 5, 2010Kronotec AgPanel and process for producing a panel
US7651751Feb 10, 2004Jan 26, 2010Kronotec AgBuilding board
US7678425Mar 4, 2004Mar 16, 2010Flooring Technologies Ltd.Process for finishing a wooden board and wooden board produced by the process
US7721503Jul 9, 2007May 25, 2010Valinge Innovation AbLocking system comprising a combination lock for panels
US7762293Jul 9, 2007Jul 27, 2010Valinge Innovation AbEquipment for the production of building panels
US7775007Jul 25, 2002Aug 17, 2010Valinge Innovation AbSystem for joining building panels
US7779596Aug 26, 2004Aug 24, 2010Valinge Innovation AbLocking system for mechanical joining of floorboards and method for production thereof
US7790293Apr 27, 2006Sep 7, 2010Flooring Technologies Ltd.Process for finishing a wooden board and wooden board produced by the process
US7802411Jul 9, 2007Sep 28, 2010Valinge Innovation AbMechanical locking system for floor panels
US7802415Jul 9, 2007Sep 28, 2010Valinge Innovation AbFloor panel with sealing means
US7816001Jun 20, 2008Oct 19, 2010Kronotec AgInsulation board made of a mixture of wood base material and binding fibers
US7823359 *Aug 25, 2006Nov 2, 2010Valinge Innovation AbFloor panel with a tongue, groove and a strip
US7827749Dec 22, 2006Nov 9, 2010Flooring Technologies Ltd.Panel and method of manufacture
US7841145Aug 10, 2007Nov 30, 2010Valinge Innovation AbMechanical locking system for panels and method of installing same
US7841150Jul 9, 2007Nov 30, 2010Valinge Innovation AbMechanical locking system for floorboards
US7842212Apr 10, 2006Nov 30, 2010Flooring Industries Limited, SarlFloor covering, floor panels for forming such floor covering, and method for realizing such floor panels
US7845133Jul 9, 2007Dec 7, 2010Valinge Innovation AbLocking system for floorboards
US7854986Sep 7, 2006Dec 21, 2010Flooring Technologies Ltd.Building board and method for production
US7856784Aug 8, 2008Dec 28, 2010Pergo AGFlooring panel or wall panel and use thereof
US7856785Feb 25, 2009Dec 28, 2010Valinge Innovation AbFloor panel with a tongue, groove and a strip
US7866110 *Jul 9, 2007Jan 11, 2011Valinge Innovation AbMechanical locking system for panels and method of installing same
US7874119Jul 9, 2007Jan 25, 2011Valinge Innovation AbLocking system, floorboard comprising such a locking system, as well as method for making floorboards
US7908815Jul 11, 2007Mar 22, 2011Valinge Innovation AbMechanical locking of floor panels with a flexible bristle tongue
US7908816Jan 30, 2004Mar 22, 2011Kronotec AgDevice for connecting building boards, especially floor panels
US7913471Jul 9, 2007Mar 29, 2011Valinge Innovation AbLocking system and flooring board
US7954295Jul 9, 2007Jun 7, 2011Valinge Innovation AbLocking system and flooring board
US7980041Aug 25, 2010Jul 19, 2011Valinge Innovation AbMechanical locking system for floor panels
US8003168Sep 2, 2004Aug 23, 2011Kronotec AgMethod for sealing a building panel
US8011155Jul 12, 2010Sep 6, 2011Valinge Innovation AbLocking system for mechanical joining of floorboards and method for production thereof
US8016969Jun 18, 2009Sep 13, 2011Flooring Technologies Ltd.Process for finishing a wooden board and wooden board produced by the process
US8028486Jul 26, 2002Oct 4, 2011Valinge Innovation AbFloor panel with sealing means
US8033074May 27, 2010Oct 11, 2011Valinge Innovation AbMechanical locking of floor panels with a flexible bristle tongue
US8033075Aug 15, 2007Oct 11, 2011Välinge Innovation ABLocking system and flooring board
US8042311Dec 4, 2007Oct 25, 2011Valinge Innovation AbMechanical locking system for panels and method of installing same
US8061104May 20, 2005Nov 22, 2011Valinge Innovation AbMechanical locking system for floor panels
US8079196Dec 7, 2010Dec 20, 2011Valinge Innovation AbMechanical locking system for panels
US8112967May 15, 2009Feb 14, 2012Valinge Innovation AbMechanical locking of floor panels
US8146318Sep 29, 2008Apr 3, 2012Pergo (Europe) AbBuilding panels
US8171692Jul 9, 2007May 8, 2012Valinge Innovation AbMechanical locking system for floor panels
US8176698Sep 20, 2004May 15, 2012Kronotec AgPanel
US8181416 *Jun 13, 2011May 22, 2012Valinge Innovation AbMechanical locking system for floor panels
US8215076Dec 3, 2010Jul 10, 2012Välinge Innovation ABLocking system, floorboard comprising such a locking system, as well as method for making floorboards
US8234830Feb 3, 2011Aug 7, 2012Välinge Innovations ABMechanical locking system for floor panels
US8234831May 11, 2011Aug 7, 2012Välinge Innovation ABLocking system for mechanical joining of floorboards and method for production thereof
US8245478Mar 11, 2011Aug 21, 2012Välinge Innovation ABSet of floorboards with sealing arrangement
US8250825Apr 27, 2006Aug 28, 2012Välinge Innovation ABFlooring and method for laying and manufacturing the same
US8257791Apr 1, 2008Sep 4, 2012Kronotec AgProcess of manufacturing a wood fiberboard, in particular floor panels
US8336272 *Jan 8, 2009Dec 25, 2012Flooring Technologies Ltd.Device and method for locking two building boards
US8341914Oct 22, 2010Jan 1, 2013Valinge Innovation AbMechanical locking of floor panels with a flexible bristle tongue
US8341915Oct 21, 2005Jan 1, 2013Valinge Innovation AbMechanical locking of floor panels with a flexible tongue
US8353140Nov 7, 2008Jan 15, 2013Valinge Innovation AbMechanical locking of floor panels with vertical snap folding
US8359805Aug 1, 2011Jan 29, 2013Valinge Innovation AbMechanical locking of floor panels with a flexible bristle tongue
US8381477Jul 11, 2008Feb 26, 2013Valinge Innovation AbMechanical locking of floor panels with a flexible tongue
US8387327Oct 5, 2011Mar 5, 2013Valinge Innovation AbMechanical locking system for floor panels
US8397456 *Jun 28, 2002Mar 19, 2013M. KaindlPanel with a sound insulation layer and production method
US8402709Jul 11, 2006Mar 26, 2013Pergo (Europe) AbFlooring panel or wall panel and use thereof
US8429869May 3, 2011Apr 30, 2013Valinge Innovation AbLocking system and flooring board
US8448402Dec 16, 2011May 28, 2013Välinge Innovation ABMechanical locking of building panels
US8475871Oct 29, 2010Jul 2, 2013Flooring Technologies Ltd.Building board and method for production
US8495849Jul 9, 2007Jul 30, 2013Valinge Innovation AbFloor covering and locking systems
US8499521Nov 7, 2008Aug 6, 2013Valinge Innovation AbMechanical locking of floor panels with vertical snap folding and an installation method to connect such panels
US8505257Jan 30, 2009Aug 13, 2013Valinge Innovation AbMechanical locking of floor panels
US8511031Jul 18, 2012Aug 20, 2013Valinge Innovation AbSet F floorboards with overlapping edges
US8516767Oct 4, 2005Aug 27, 2013Pergo (Europe) AbJoint for panels
US8528289Mar 21, 2012Sep 10, 2013Valinge Innovation AbMechanical locking system for floor panels
US8535589Sep 27, 2010Sep 17, 2013Flooring Industries Limited, SarlFloor covering, floor panels for forming such floor covering, and method for realizing such floor panels
US8544230Dec 23, 2010Oct 1, 2013Valinge Innovation AbMechanical locking system for floor panels
US8544234Oct 25, 2012Oct 1, 2013Valinge Innovation AbMechanical locking of floor panels with vertical snap folding
US8572922Jul 2, 2012Nov 5, 2013Valinge Flooring Technology AbMechanical locking of floor panels with a glued tongue
US8590253May 24, 2010Nov 26, 2013Valinge Innovation AbLocking system for floorboards
US8596013Apr 3, 2013Dec 3, 2013Valinge Innovation AbBuilding panel with a mechanical locking system
US8615955May 24, 2012Dec 31, 2013Valinge Innovation AbLocking system, floorboard comprising such a locking system, as well as method for making floorboards
US8627862Jan 30, 2009Jan 14, 2014Valinge Innovation AbMechanical locking of floor panels, methods to install and uninstall panels, a method and an equipment to produce the locking system, a method to connect a displaceable tongue to a panel and a tongue blank
US8640424 *Aug 8, 2013Feb 4, 2014Valinge Innovation AbMechanical locking system for floor panels
US8650826Jul 11, 2012Feb 18, 2014Valinge Flooring Technology AbMechanical locking system for floor panels
US8677714Feb 4, 2013Mar 25, 2014Valinge Innovation AbMechanical locking system for panels and method of installing same
US8689512Oct 25, 2007Apr 8, 2014Valinge Innovation AbMechanical locking of floor panels with vertical folding
US8707650Sep 14, 2011Apr 29, 2014Valinge Innovation AbMechanical locking system for panels and method of installing same
US8713886Nov 2, 2009May 6, 2014Valinge Innovation AbMechanical lockings of floor panels and a tongue blank
US8733065Mar 21, 2012May 27, 2014Valinge Innovation AbMechanical locking system for floor panels
US8733410Mar 5, 2008May 27, 2014Valinge Innovation AbMethod of separating a floorboard material
US8763340Aug 14, 2012Jul 1, 2014Valinge Flooring Technology AbMechanical locking system for floor panels
US8763341Nov 14, 2013Jul 1, 2014Valinge Innovation AbMechanical locking of floor panels with vertical folding
US8769905Aug 14, 2012Jul 8, 2014Valinge Flooring Technology AbMechanical locking system for floor panels
US8776473Feb 3, 2011Jul 15, 2014Valinge Innovation AbMechanical locking system for floor panels
US8806832Aug 30, 2013Aug 19, 2014Inotec Global LimitedVertical joint system and associated surface covering system
US8826622Jan 29, 2013Sep 9, 2014Flooring Industries Limited, SarlFloor panel having coupling parts allowing assembly with vertical motion
US8833028 *Jan 10, 2011Sep 16, 2014Valinge Innovation AbFloor covering with interlocking design
US8833029Oct 8, 2009Sep 16, 2014Kronotec AgFloor panel
US8844236Dec 27, 2012Sep 30, 2014Valinge Innovation AbMechanical locking of floor panels with a flexible bristle tongue
US8857126Aug 14, 2012Oct 14, 2014Valinge Flooring Technology AbMechanical locking system for floor panels
US8869485Dec 7, 2007Oct 28, 2014Valinge Innovation AbMechanical locking of floor panels
US8869486Mar 29, 2013Oct 28, 2014Valinge Innovation AbLocking system and flooring board
US8887468May 4, 2012Nov 18, 2014Valinge Flooring Technology AbMechanical locking system for building panels
US8898988Aug 27, 2013Dec 2, 2014Valinge Innovation AbMechanical locking system for floor panels
US8919063Sep 7, 2006Dec 30, 2014Flooring Technologies Ltd.Building board having a pattern applied onto side surfaces and conecting mechanisms thereof
US8925274May 3, 2013Jan 6, 2015Valinge Innovation AbMechanical locking of building panels
US8959866Oct 1, 2013Feb 24, 2015Valinge Flooring Technology AbMechanical locking of floor panels with a glued tongue
US8991055Mar 22, 2007Mar 31, 2015Flooring Industries Limited, SarlFloor covering, floor element and method for manufacturing floor elements
US8997430Jan 7, 2015Apr 7, 2015Spanolux N.V.-Div. BalterioFloor panel assembly
US9003735Apr 15, 2010Apr 14, 2015Spanolux N.V.—Div. BalterioFloor panel assembly
US20090173032 *Jan 8, 2009Jul 9, 2009Flooring Technologies Ltd.Device and method for locking two building boards
US20110167744 *Jan 10, 2011Jul 14, 2011Mannington Mills, Inc.Floor Covering With Interlocking Design
US20130061393 *Sep 9, 2011Mar 14, 2013M.P.L. LimitedFall mat with hinged interlocking bodies
US20140290173 *Jul 30, 2012Oct 2, 2014Hamberger Industriewerke GmbhConnection for elastic or panel-type components, profiled slide, and floor covering
US20150075105 *Aug 11, 2014Mar 19, 2015Pergo (Europe) AbJoint guard for panels
US20150107175 *Sep 25, 2014Apr 23, 2015Eastman Chemical CompanyCoated structural members having improved resistance to cracking
CN100572722CNov 3, 2003Dec 23, 2009古斯塔夫·卡尔公司Floorboard and floor covering for resilient floor
DE102007013189A1 *Mar 15, 2007Sep 18, 2008Holz-Speckmann GmbhBase plate for moving on hard background, particularly ice, has plate provided at lateral edge of mechanical bolting device mechanism for connecting two neighboring plates
WO2002077388A1 *Mar 20, 2002Oct 3, 2002Brinkkoetter DieterConnecting system for mobile sporting floorings
WO2004044348A1 *Nov 3, 2003May 27, 2004Hans BraennstroemFloorboard and floor covering for resilient floor
Classifications
U.S. Classification52/309.8, 404/51, 5/420, 52/802.1, 56/62, 52/393, 52/591.1, 52/309.15
International ClassificationE04F15/22, E04C2/10, E04F15/10, E04C2/24, E04C2/38
Cooperative ClassificationE04C2/38, E04F15/10, E04F15/22, E04C2/243
European ClassificationE04F15/10, E04F15/22, E04C2/24B, E04C2/38