US2324628A - Composite board structure - Google Patents

Composite board structure Download PDF

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Publication number
US2324628A
US2324628A US407677A US40767741A US2324628A US 2324628 A US2324628 A US 2324628A US 407677 A US407677 A US 407677A US 40767741 A US40767741 A US 40767741A US 2324628 A US2324628 A US 2324628A
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United States
Prior art keywords
layer
board
veneer
transversal
lengths
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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.)
Expired - Lifetime
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US407677A
Inventor
Kahr Gustaf
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Kahr Gustaf
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Publication date
Priority to SE891020X priority Critical
Priority to SE555317X priority
Priority to SE889689X priority
Priority to SE2324628X priority
Application filed by Kahr Gustaf filed Critical Kahr Gustaf
Application granted granted Critical
Publication of US2324628A publication Critical patent/US2324628A/en
Priority to US437164A priority patent/US2816161A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L17/00Apparatus or local circuits for transmitting or receiving codes wherein each character is represented by the same number of equal-length code elements, e.g. Baudot code
    • H04L17/02Apparatus or circuits at the transmitting end
    • H04L17/12Automatic transmitters, e.g. controlled by perforated tape
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27DWORKING VENEER OR PLYWOOD
    • B27D1/00Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
    • B27D1/06Manufacture of central layers; Form of central layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27MWORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/0013Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles
    • B27M3/0086Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by connecting using glue
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/12Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of solid wood
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00Flooring
    • E04F15/02Flooring or floor layers composed of a number of similar elements
    • E04F15/04Flooring or floor layers composed of a number of similar elements only of wood or with a top layer of wood, e.g. with wooden or metal connecting members
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/16Two dimensionally sectional layer
    • Y10T428/162Transparent or translucent layer or section
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/16Two dimensionally sectional layer
    • Y10T428/163Next to unitary web or sheet of equal or greater extent
    • Y10T428/164Continuous two dimensionally sectional layer
    • Y10T428/167Cellulosic sections [e.g., parquet floor, etc.]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24058Structurally defined web or sheet [e.g., overall dimension, etc.] including grain, strips, or filamentary elements in respective layers or components in angular relation
    • Y10T428/24066Wood grain

Description

Patented July 20, 1943 Application August 20, 19111,` SeralNo. 407,677

l ,e `In Sweden February '7, 1941 1 claim. (c1. 20-91) The present invention :relates to,` Acomposite board structures of the kind which ,are'composed of a plurality of wood layers glued together, said layers comprising an upper parquetveneer layer', a filling or intermediate layerand a lower cover- In Figures l and 2 two boards joined together are shown, the parquet veneer 'layer and the upper binding layer having been removed from one e of the boards for the purposeof showingjthe ing layer. For obtaining the greatestpossible, bending strength, which is important in cases` where such boards are to be used as a flooring, the lower covering layer, which, when loaded, is

`exposed to tensile stresses, should have its run `of grain extending in the longitudinal directions.`

of the board. From the point of view of strength,

also the filling layer should, preferably, have its libres extending in the longitudinal direction of the board, saidflling layer being suitably composed of a number of rods parallel tothe longi-,H tudinal direction of the board. The present in' vention has for itsj object to 'provide a board structure ofethisekind resistant to moisture and temperature variations, and particularly it has for its object to prevent such displacements in the transversal direction of the board as may arise in layers, having longitudinal run of grain, on account of the swelling or drying of the wood. It is known to form, for that purpose, the filling layer `of lengths having their run of grain extending in the transversal direction of the board. However, such an arrangement of the filling layer is unsuitable from the point of view of strength. According to the present invention, the binding of the layers in the transversal direction is obtained by one or more binding layers,of veneer, the run of grain of which extends in `the transversal direction of the board, being arranged between the outer layers on either or both sides of the filling layer. ranged, in the `first place, between the parquet veneer layer and the filling layer,'whereby an effective binding of the parquet veneer rods in the transversal direction of the board is obtained, while at the same time the lengths of the filling layer are bound in the transversal direction. By arranging a similar binding layer between the lling layer and the lower covering layerthere is Such a binding layer is arobtained in similar mannera binding in theY transversal direction ofthe last-mentioned layer,

While at the same time the binding of the lling layer is further amplified. e

The invention is illustrated on the accompanying drawing, Vwhich shows two embodiments of,

the invention. Figure 1 is a plan view and Fig-` ure 2 an end view `of boards according to one of the embodiments, while Figures 3 and 4 show, in similar manner, boards made in accordance with the other embodiment.

` construction of l the filling layer. In the shown example, the lling layer consists of a. number of mutually parallel lengths extending in the longitudinal directionof the board and arranged at a short distance from each other. They are provided with alternate incisions 2 cut from all of the four sides, the depth of said incisions being approximately two thirdsof the `thickness and width,` respectively, of the length so that all of the longitudinal bres'of the lengths are cutol. The incisions may, if desired, be cut `fromtwo op` posite sides only, preferably from the broad sides. The transversal e incisions prevent` effectively every tendency of the` board todistort or cast `by distortion of the lengths ofthelling layer." A

similar result may be obtainedby causingthe incisions to pass right through the length, in which case the lling layer will consist of a large number of short lengths arranged in rows. The boards are `rebated, longitudinal tongues3 and grooves 4 being provided in the outer lengths only,

, while transversal tongues 5 and grooves 6 are provided at the ends of all of the lengths. In order to prevent the longitudinal tongue 3 from being cut off by the incisions 2, the corresponding length isprovided with incisions from three sides only, the incisions cut from the upper sideand the lower side being made so `shallow that the tongue 3 is leit free. In similar manner, the cutting-through of the side walls of the grooves 4 may be avoided. In order toV further reduce the tendency of the outer lengths` to distort, these are preferably made narrower than the other rods.

The parquet veneer layer consists of parquet lengths l, all of which extend, accordingto the.,

shown example, in the longitudinal direction of the board. However, they may also be arranged in known manner alternately in the transversal direction and in thelongitudinal direction so as to form a checkered pattern. In the shown example, the lower covering layer 8 consists of a single uninterrupted veneer layer extending along the entire length of the board. It may, however, also consist of a plurality of thin laths or ribbons of veneer disposed side by side and extending in the longitudinal direction of the board.Y

Disposed -on each sidelof the lling layer and inside the parquet veneer layer and the lower covering layer is a binding layer 9 and IU, lrespectively, which consists of comparatively thin veneer and the run of grain of which extends in the transversal direction of the board. Each binding veneer layer is preferably made in a single piece of the same length and width as the board, but in any case it should extend without interruption in the tranversal direction of the board. All of the layers are interconnected by means of gluing. Preferably, the gluing-togther takes place in a. press under the influence of heat or pressure. In that oase, the parquet veneer layer is simultaneously exposed to a pressure in a lateral direction, which pressure is maintained until the glue has set. By this, `a rm cohesion laterally is obtained, which in turn entails that the parquet Veneer layer becomes highly resistant to the influence of humidity 'and dryness. Under such circumstances, the parquet lengths need not be glued together along the lateral edges. The lengths of the lling layer may also rest against each other along the lateral edges Vwithout being glued together at these edges, the edge surfaces being preferably lluted or provided with a` rough surface, for'i'nstance'by sawing the rods by means of a Asawv with coarse cut, so that the edges Ybecome to some extent yielding'to lateral pressure caused-by moisture variations.

As an example of the dimensioning ofthe boards andtheir various parts it may be mentioned Ath'at'the length of the boards may b-e 2 Yto 5 meters and their Width approximately l0 to l5 cm., 'while the thickness of the parquet veneer layer may be 5"to 8 mm., that the filling lengths approximately 20 min. andV that of the veneer longitudinal length or lath of the same length and width as the board, in which case, however, the board should not be given a greater Width than approximately 12 om., if the parquet veneer layer is made of teak or a similar kind of wood, and should be made still narrower, if a less dense kind of wood is employed. Also in this case there are employed two veneerilayers I'2,' I3, whic are arranged on either side. of the lling layer and the run of grain of which extends in the transversal direction. With a view to obtaining a sealing. joint between the boards, semicircular "channels I4 are arranged at the .sides of the outerlengths l5, I6 in which tow yarn or the like is introduced, a groove I1 also being arranged between the boards above the said channel'for introduction of a plastic jointing material. As the deck planks on board ships usually constitute the roof of the story below, the lower veneer layer I8' is suitably'made-thicker so: that it Inaybe given the desired sectional form.

'I claim: y j A` board particularly for flooring,^loomposedv of la* plurality of" Wood layers 'glued togethercomp'rising at leastthree diierent llayers,itheyupperm'ost of these layers being "a parquet' veneer layer'ormed of parquet veneerjrods,' the'second layer being an intermediate filling layer consisting of lengths extending in` the longitudinal' direc- "tion of (the board and 'atflea'st partially Acut throughin the transversal"direction"atY several places, the third layer being a bindinglayerarranged between'the parquet' veneerlayer `and the intermediate'layer and'consisting of' veneer "therun of grain of which 'extends'in the transversal 'direction of the board.

GUSTAF

US407677A 1941-02-07 1941-08-20 Composite board structure Expired - Lifetime US2324628A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE891020X 1941-02-07
SE555317X 1941-02-07
SE889689X 1941-02-07
SE2324628X 1941-02-07
US437164A US2816161A (en) 1954-06-16 1954-06-16 Telegraph transmitter

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US2324628A true US2324628A (en) 1943-07-20

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Application Number Title Priority Date Filing Date
US407677A Expired - Lifetime US2324628A (en) 1941-02-07 1941-08-20 Composite board structure

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GB (1) GB555317A (en)

Cited By (72)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2477071A (en) * 1944-04-15 1949-07-26 Matti Kurt Gunter Parquet floor
US2491498A (en) * 1943-09-10 1949-12-20 Kahr Gustaf Flooring consisting of laminated boards
US2663661A (en) * 1951-10-08 1953-12-22 Clarence U Gramelspacher Method of making plywood from wood waste and product resulting therefrom
US2729584A (en) * 1949-07-20 1956-01-03 Crandall Corp Method and apparatus for the manufacture of a composite wood product
US3515620A (en) * 1967-02-23 1970-06-02 Pope & Talbot Co Decorative,laminated wood panel and method of making same
WO1991001878A1 (en) * 1989-07-31 1991-02-21 Weyerhaeuser Company Laminated wood product
US20020178673A1 (en) * 1993-05-10 2002-12-05 Tony Pervan System for joining building panels
US6510665B2 (en) 2000-01-24 2003-01-28 Valinge Aluminum Ab Locking system for mechanical joining of floorboards and method for production thereof
US6516579B1 (en) 1993-05-10 2003-02-11 Tony Pervan System for joining building boards
US6532709B2 (en) 1998-06-03 2003-03-18 Valinge Aluminium Ab Locking system and flooring board
US20030101674A1 (en) * 2001-09-20 2003-06-05 Darko Pervan Flooring and method for laying and manufacturing the same
US6588166B2 (en) 1995-03-07 2003-07-08 Pergo (Europe) Ab Flooring panel or wall panel and use thereof
US6606834B2 (en) 1995-03-07 2003-08-19 Pergo (Europe) Ab Flooring panel or wall panel and use thereof
US20030196405A1 (en) * 1994-04-29 2003-10-23 Tony Pervan System for joining building panels
US20040016196A1 (en) * 2002-04-15 2004-01-29 Darko Pervan Mechanical locking system for floating floor
US20040035078A1 (en) * 2002-03-20 2004-02-26 Darko Pervan Floorboards with decorative grooves
US6715253B2 (en) 2000-04-10 2004-04-06 Valinge Aluminium Ab Locking system for floorboards
US6769218B2 (en) 2001-01-12 2004-08-03 Valinge Aluminium Ab Floorboard and locking system therefor
US6851241B2 (en) 2001-01-12 2005-02-08 Valinge Aluminium Ab Floorboards and methods for production and installation thereof
US6880305B2 (en) 1995-05-17 2005-04-19 Valinge Aluminium Ab Metal strip for interlocking floorboard and a floorboard using same
US20050166516A1 (en) * 2004-01-13 2005-08-04 Valinge Aluminium Ab Floor covering and locking systems
US20060236631A1 (en) * 1996-06-11 2006-10-26 Moriau Stefan S G Floor Panels with edge connectors
US7131242B2 (en) 1995-03-07 2006-11-07 Pergo (Europe) Ab Flooring panel or wall panel and use thereof
US20060265641A1 (en) * 2005-05-17 2006-11-23 International Business Machines Corporation Custom report generation
US7386963B2 (en) 1998-06-03 2008-06-17 Valinge Innovation Ab Locking system and flooring board
US7431979B2 (en) 2002-11-12 2008-10-07 Kronotec Ag Wood fiberboard
US7444791B1 (en) 1998-06-03 2008-11-04 Valinge Innovation Ab Locking system and flooring board
US7454875B2 (en) 2004-10-22 2008-11-25 Valinge Aluminium Ab Mechanical locking system for floor panels
US7484337B2 (en) 2002-11-15 2009-02-03 Kronotec. Ag Floor panel and method of laying a floor panel
US7484338B2 (en) 1999-04-30 2009-02-03 Valinge Innovation Ab Locking system, floorboard comprising such a locking system, as well as method for making floorboards
US7497058B2 (en) 1995-03-07 2009-03-03 Pergo (Europe) Ab Flooring panel or wall panel and use thereof
US7506481B2 (en) 2003-12-17 2009-03-24 Kronotec Ag Building board for use in subfloors
US7516588B2 (en) 2004-01-13 2009-04-14 Valinge Aluminium Ab Floor covering and locking systems
US7550202B2 (en) 2004-03-11 2009-06-23 Kronotec Ag Insulation board made of a mixture of wood base material and binding fibers
US7562431B2 (en) 2004-01-30 2009-07-21 Flooring Technologies Ltd. Method for bringing in a strip forming a spring of a board
US7617651B2 (en) 2002-11-12 2009-11-17 Kronotec Ag Floor panel
US7621092B2 (en) 2006-02-10 2009-11-24 Flooring Technologies Ltd. Device and method for locking two building boards
US7637068B2 (en) 2002-04-03 2009-12-29 Valinge Innovation Ab Mechanical locking system for floorboards
US7641963B2 (en) 2002-11-12 2010-01-05 Kronotec Ag Panel and process for producing a panel
US7651751B2 (en) 2003-02-14 2010-01-26 Kronotec Ag Building board
US7678425B2 (en) 2003-03-06 2010-03-16 Flooring Technologies Ltd. Process for finishing a wooden board and wooden board produced by the process
US7677001B2 (en) 2003-03-06 2010-03-16 Valinge Innovation Ab Flooring systems and methods for installation
US7739849B2 (en) 2002-04-22 2010-06-22 Valinge Innovation Ab Floorboards, flooring systems and methods for manufacturing and installation thereof
US7827749B2 (en) 2005-12-29 2010-11-09 Flooring Technologies Ltd. Panel and method of manufacture
US7841144B2 (en) 2005-03-30 2010-11-30 Valinge Innovation Ab Mechanical locking system for panels and method of installing same
US7845140B2 (en) 2003-03-06 2010-12-07 Valinge Innovation Ab Flooring and method for installation and manufacturing thereof
US7854986B2 (en) 2005-09-08 2010-12-21 Flooring Technologies Ltd. Building board and method for production
US7877956B2 (en) 1999-07-05 2011-02-01 Pergo AG Floor element with guiding means
US7886497B2 (en) 2003-12-02 2011-02-15 Valinge Innovation Ab Floorboard, system and method for forming a flooring, and a flooring formed thereof
US7908816B2 (en) 2003-03-24 2011-03-22 Kronotec Ag Device for connecting building boards, especially floor panels
US8003168B2 (en) 2003-09-06 2011-08-23 Kronotec Ag Method for sealing a building panel
US8042484B2 (en) 2004-10-05 2011-10-25 Valinge Innovation Ab Appliance and method for surface treatment of a board shaped material and floorboard
US8061104B2 (en) 2005-05-20 2011-11-22 Valinge Innovation Ab Mechanical locking system for floor panels
US8176698B2 (en) 2003-10-11 2012-05-15 Kronotec Ag Panel
US8215078B2 (en) 2005-02-15 2012-07-10 Välinge Innovation Belgium BVBA Building panel with compressed edges and method of making same
US8245477B2 (en) 2002-04-08 2012-08-21 Välinge Innovation AB Floorboards for floorings
US8250825B2 (en) 2001-09-20 2012-08-28 Välinge Innovation AB Flooring and method for laying and manufacturing the same
US8475871B2 (en) 2005-09-08 2013-07-02 Flooring Technologies Ltd. Building board and method for production
US8544233B2 (en) 2000-03-31 2013-10-01 Pergo (Europe) Ab Building panels
US8584423B2 (en) 2001-07-27 2013-11-19 Valinge Innovation Ab Floor panel with sealing means
US8615952B2 (en) 2010-01-15 2013-12-31 Pergo (Europe) Ab Set of panels comprising retaining profiles with a separate clip and method for inserting the clip
US8627631B2 (en) 2000-06-20 2014-01-14 Flooring Industries Limited, Sarl Floor covering
CN103522373A (en) * 2013-10-25 2014-01-22 黑龙江华信家具有限公司 Low-carbon method for manufacturing environmental friendly deformation-prevention fireproof sheet material
US8850769B2 (en) 2002-04-15 2014-10-07 Valinge Innovation Ab Floorboards for floating floors
US8919063B2 (en) 2005-09-08 2014-12-30 Flooring Technologies Ltd. Building board having a pattern applied onto side surfaces and conecting mechanisms thereof
US8978334B2 (en) 2010-05-10 2015-03-17 Pergo (Europe) Ab Set of panels
US9322162B2 (en) 1998-02-04 2016-04-26 Pergo (Europe) Ab Guiding means at a joint
US9365028B2 (en) 2006-02-21 2016-06-14 Flooring Technologies Ltd. Method for finishing a building board and building board
US9464443B2 (en) 1998-10-06 2016-10-11 Pergo (Europe) Ab Flooring material comprising flooring elements which are assembled by means of separate flooring elements
US9975267B2 (en) 2013-08-27 2018-05-22 Valinge Innovation Ab Method for producing a lamella core
US10066400B2 (en) 2011-08-29 2018-09-04 Ceraloc Innovation Ab Mechanical locking system for floor panels
US10619356B2 (en) 2012-07-02 2020-04-14 Ceraloc Innovation Ab Panel forming

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3653166A (en) * 1969-11-18 1972-04-04 Solomon Kirschen Laminated roof construction

Cited By (181)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2491498A (en) * 1943-09-10 1949-12-20 Kahr Gustaf Flooring consisting of laminated boards
US2477071A (en) * 1944-04-15 1949-07-26 Matti Kurt Gunter Parquet floor
US2729584A (en) * 1949-07-20 1956-01-03 Crandall Corp Method and apparatus for the manufacture of a composite wood product
US2663661A (en) * 1951-10-08 1953-12-22 Clarence U Gramelspacher Method of making plywood from wood waste and product resulting therefrom
US3515620A (en) * 1967-02-23 1970-06-02 Pope & Talbot Co Decorative,laminated wood panel and method of making same
WO1991001878A1 (en) * 1989-07-31 1991-02-21 Weyerhaeuser Company Laminated wood product
US5074092A (en) * 1989-07-31 1991-12-24 Weyerhaeuser Company Laminated wood product
US7086205B2 (en) 1993-05-10 2006-08-08 Valinge Aluminium Ab System for joining building panels
US20020178673A1 (en) * 1993-05-10 2002-12-05 Tony Pervan System for joining building panels
US6516579B1 (en) 1993-05-10 2003-02-11 Tony Pervan System for joining building boards
US7823359B2 (en) 1993-05-10 2010-11-02 Valinge Innovation Ab Floor panel with a tongue, groove and a strip
US7775007B2 (en) 1993-05-10 2010-08-17 Valinge Innovation Ab System for joining building panels
US20050166502A1 (en) * 1993-05-10 2005-08-04 Valinge Aluminium Ab. Metal strip for interlocking floorboard and a floorboard using same
US7121059B2 (en) 1994-04-29 2006-10-17 Valinge Innovation Ab System for joining building panels
US20030196405A1 (en) * 1994-04-29 2003-10-23 Tony Pervan System for joining building panels
US6588166B2 (en) 1995-03-07 2003-07-08 Pergo (Europe) Ab Flooring panel or wall panel and use thereof
US9032685B2 (en) 1995-03-07 2015-05-19 Pergo (Europe) Ab Flooring panel or wall panel and use thereof
US7131242B2 (en) 1995-03-07 2006-11-07 Pergo (Europe) Ab Flooring panel or wall panel and use thereof
US6606834B2 (en) 1995-03-07 2003-08-19 Pergo (Europe) Ab Flooring panel or wall panel and use thereof
US7497058B2 (en) 1995-03-07 2009-03-03 Pergo (Europe) Ab Flooring panel or wall panel and use thereof
US7856784B2 (en) 1995-03-07 2010-12-28 Pergo AG Flooring panel or wall panel and use thereof
US8661762B2 (en) 1995-03-07 2014-03-04 Pergo (Europe) Ab Flooring panel or wall panel and use thereof
US8875465B2 (en) 1995-03-07 2014-11-04 Pergo (Europe) Ab Flooring panel or wall panel and use thereof
US8402709B2 (en) 1995-03-07 2013-03-26 Pergo (Europe) Ab Flooring panel or wall panel and use thereof
US6880305B2 (en) 1995-05-17 2005-04-19 Valinge Aluminium Ab Metal strip for interlocking floorboard and a floorboard using same
US8166723B2 (en) 1996-06-11 2012-05-01 Unilin Beheer B.V., Besloten Vennootschap Floor panels with edge connectors
US8365494B2 (en) 1996-06-11 2013-02-05 Unilin Beheer B.V., Besloten Vennootschap Floor panels with edge connectors
US8789334B2 (en) 1996-06-11 2014-07-29 Unilin Beheer B.V., Besloten Vennootschap Floor panels with edge connectors
US7669377B2 (en) 1996-06-11 2010-03-02 Unilin Beheer B.V., Besloten Vennootschap Floor panels with edge connectors
US8997429B2 (en) 1996-06-11 2015-04-07 Unilin Beheer B.V. Floor panels with edge connectors
US20060236631A1 (en) * 1996-06-11 2006-10-26 Moriau Stefan S G Floor Panels with edge connectors
US9290951B2 (en) 1996-06-11 2016-03-22 Unilin Beheer B.V. Floor panels with edge connectors
US7665267B2 (en) 1996-06-11 2010-02-23 Unilin Beheer B.V., Besloten Vennootschap Floor panels with edge connectors
US7827755B2 (en) 1996-06-11 2010-11-09 Unilin Beheer B.V., Besloten Vennootschap Floor panels with edge connectors
US7827754B2 (en) 1996-06-11 2010-11-09 Unilin Beheer B.V., Besloten Vennootschap Floor panels with edge connectors
US7665266B2 (en) 1996-06-11 2010-02-23 Unilin Beheer B.V., Besloten Vennootschap Floor panels with edge connectors
US7665265B2 (en) 1996-06-11 2010-02-23 Unlin Beheer B.V. Floor panels with edge connectors
US7654054B2 (en) 1996-06-11 2010-02-02 Uniliin Beheer B.V. besloten vennootschap Floor panels with edge connectors
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