BE557844A - - Google Patents

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Publication number
BE557844A
BE557844A BE557844DA BE557844A BE 557844 A BE557844 A BE 557844A BE 557844D A BE557844D A BE 557844DA BE 557844 A BE557844 A BE 557844A
Authority
BE
Belgium
Prior art keywords
characterized
elements
floor according
floor
provided
Prior art date
Application number
Other languages
French (fr)
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
Priority to IT965656 priority Critical
Application filed filed Critical
Publication of BE557844A publication Critical patent/BE557844A/fr

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Classifications

    • 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
    • E04F15/10Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00Joining sheets or plates or panels
    • E04F2201/01Joining sheets, plates or panels with edges in abutting relationship
    • E04F2201/0107Joining sheets, plates or panels with edges in abutting relationship by moving the sheets, plates or panels substantially in their own plane, perpendicular to the abutting edges
    • E04F2201/0115Joining sheets, plates or panels with edges in abutting relationship by moving the sheets, plates or panels substantially in their own plane, perpendicular to the abutting edges with snap action of the edge connectors
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00Joining sheets or plates or panels
    • E04F2201/01Joining sheets, plates or panels with edges in abutting relationship
    • E04F2201/0138Joining sheets, plates or panels with edges in abutting relationship by moving the sheets, plates or panels perpendicular to the main plane
    • E04F2201/0146Joining sheets, plates or panels with edges in abutting relationship by moving the sheets, plates or panels perpendicular to the main plane with snap action of the edge connectors
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00Joining sheets or plates or panels
    • E04F2201/02Non-undercut connections, e.g. tongue and groove connections
    • E04F2201/028Non-undercut connections, e.g. tongue and groove connections connected by tongues and grooves with triangular shape

Description


    <Desc/Clms Page number 1> <Desc / CRUD Page number 1> 
 



    La présente invention a pour' objet un plancher en caoutchouc ou matières analogues, dont la carac téristi- que principale consiste en'ce que ce plancher se compose d'éléments polygonaux munis de moyens pour l'encastrement réciproque de leurs bords. The present invention has for object a floor or the like rubber material including a main charac téristi- en'ce is that floor consists of polygonal elements provided with means for mutual embedding their edges. 



    Selon une forme de réalisation de l'invention, ces moyens d'emboîtement comportent des tenons à section en queue d'aronde, prévus sur certains côtés des éléments, et des mortaises de section correspondante prévues sur les autres côtés de ces éléments. According to one embodiment of the invention, these fitting means comprise lugs section dovetail provided on some sides of the elements, and the corresponding section of mortises provided on the other sides thereof.   



    D'autres caractéristiques et avantages de l'in- vention 'ressortiront de la description détaillée qui va suivre, donnée en se référant aux dessins annexés, qui Other features and advantages of the in- vention 'apparent from the detailed description that follows, given with reference to the accompanying drawings, which 

  <Desc/Clms Page number 2> <Desc / CRUD Page number 2> 

  montrent à titre d'exemples non limitatifs, certaines formes de réalisation. show by way of non-limiting examples, certain embodiments.  Dans ces dessins : In these drawings: 
 La figure 1 est une vue en plan d'un des élé- ments formant le plancher. Figure 1 is a plan view of one of the ele- ments forming the floor. 



    La figure 2 est une vue en coupe suivant la ligne Il-II de la figura 3. Figure 2 is a sectional view along line II-II of figura 3. 



    La figure 3 est une vue par dessous de cet élément. Figure 3 is a bottom view of this element. 



    La figure 4 est une vue en plan d'un groupe d'éléments reliés l'un à l'autre. Figure 4 is a plan view of a group of elements connected to one another. 



    La figure 5 est une vue en coupe suivant la ligne VV de la figure 4. Figure 5 is a sectional view along the line VV of Figure 4. 



    La figure 6 montre à plus grande échelle une variante de l'objet de la figure 5. 6 shows on a larger scale a variant of the object of Figure 5.   



    La figure 7 est une vue en plan d'une variante d'ex'cution d'un des éléments du plancher. Figure 7 is a ex'cution plan view of a variant to one of the floor elements. 



    La figure 8 est une vue partielle et en coupe transversale à échelle agrandie de deux éléments contigus selon la figure 7, prêts pour l'assemblage. Figure 8 is a partial cross-sectional enlarged view of two adjacent elements in Figure 7, ready for assembly. 



    La figure 9 est une -vue d'un élément en coupe suivant un plan horizontal moyen, dans la région de l'an- gle de cet élément, où se terminent les-extrémités contigûes de deux mortaises. Figure 9 is a -view of a sectional element according to an average horizontal plane, in the an- gle of the region thereof, where the adjacent ends of two mortises-terminate. 



    La figure 10 est une vue en plan d'une série d'éléments assemblés. Figure 10 is a plan view of a series of assembled elements. 



    La figure 11 est une vue en plan d'un élément constituant une variante de réalisation. Figure 11 is a plan view of an element constituting a variant embodiment. 



    La figure 12 est une vue en coupe transversale d'une autre variante encore. Figure 12 is a cross-sectional view of yet another variant.   



    Le plancher selon l'invention se compose d'élé- ments en caoutchouc de forme polygonale, rectangulaire ou carrée par exemple, désignés par 1 . The floor according to the invention consists of ele- ments in rubber polygonal, rectangular or square for example, designated by 1.  Ces éléments sont munis These elements have 

  <Desc/Clms Page number 3> <Desc / CRUD Page number 3> 

  sur deux côtés adjacents de tenons 2 en queue d'aronde et, sur leurs deux autres côtés, de mortaises 3 de forme cor- responda.nte, de façon que l'emboîtement réciproque de ces éléments donne une surface continue (voir figure 4). on two adjacent sides of two like dovetail and on their two other sides, three mortises shape corresponding responda.nte, so that the mutual engagement of these elements gives a continuous surface (see Figure 4) . 



    La face supérieure 1 des éléments est préféra- blement établie en caoutchouc opposant une résistance éle- vée à l'usure, aux agents atmosphériques, aux rayons ultra- violets et au vieillissement en général: La partie infé- rieure 4, sensiblement plus épaisse que la partie supérieure est préférablement établie en un caoutchouc plus souple, voire même spongieux, assurant une adaptation parfaite à des surfaces d'appui non rigoureusement planes, et une bonne adhérence à ces surfaces. The upper side 1 of the elements is preferable ably established between a rubber ele- EBV wear resistance, to atmospheric agents, ultraviolet rays and aging in general: the lower part 4, substantially thicker than the upper part is preferably made of a softer rubber or even spongy, ensuring a perfect adaptation to non strictly planar bearing surfaces and good adhesion to these surfaces. 



    La partie inférieure de l'élément peut notamment être établie en un mélange de caoutchouc bon marché, chargé de coton ou d'autres matières pour en réduire le prix. The lower part of the element may in particular be made of a mixture of cheap rubber, loaded with cotton or other materials to reduce the price. 



    A la face inférieure des éléments du plancher des rainures 5 délimitant des blocs 6 peuvent êtreprati- quées en vue d'améliorer les conditions d'aération. On the underside of the floor elements of the grooves 5 delimiting the blocks 6 may êtreprati- cated to improve the ventilation conditions.  A cet effet, et pour permettre une circulation d'air entre la structure sous-jacente du plancher et sa partie supérieure, les tenons 2 sont convenablement interrompus à leurs ex- trémités, de façon à réserver de petits interstices aux points de jonction entre les éléments. To this end, and to permit circulation of air between the underlying structure of the floor and its upper part, the pins 2 are suitably interrupted at their former trémités, so as to reserve small gaps at the junction points between the elements. 



    Suivant-la figure 6, les éléments présentent à leurs bords des rainures supérieures propres à recevoir des listeaux 7 garnissant les joints. Next, Figure 6, the elements have their own edges of upper grooves for receiving strips 7 filling the joints. 



    Ces éléments peuvent être établis en toutes couleurs et en matières autres que le caoutchouc, mais pos- sédant des caractéristiques similaires. These elements can be established in all colors and materials other than rubber, but pos- sédant similar characteristics.   



      Certains éléments peuvent aussi être munis d'un nombre àe lenons et mortaises autre qu'indiqué ci-dessus, Some items can also be provided with a number? E lenons mortise and other noted above, 

  <Desc/Clms Page number 4> <Desc / CRUD Page number 4> 

  pour leur adaptation aux zones périphériques du plancher. for their adaptation to the peripheral areas of the floor. 



    Selon la variante de réalisation montrée dans la figure 7, le plancher se compose d'une série d'éléments en caoutchouc 10 de forme rectangulaire, comportant préfé- rablement deux eouches de caoutchouc et réunies l'une à l'autre. According to the embodiment shown in Figure 7, the floor consists of a series of rubber elements 10 of rectangular shape, having two prefer- ably eouches rubber and joined to one another. 



    Chaque élément a convenablement une longueur qui est égale à deux fois sa largeur. Each element suitably has a length which is equal to twice its width.  Cette proportion particulière des éléments a été calculée en raison du fait que le caoutchouc moulé se rétrécit lorsqu'il se refroidit, dans une mesure inégale 'dans les différentes directions, déterminées en partie par le sens du calandrage du mélange cru. This particular proportion of the elements was calculated due to the fact that the molded rubber shrinks as it cools in an uneven measurement 'in different directions, determined in part by the direction of calendering the raw mixture. 



    Ainsi, un élément moulé dans un moule exactement carré deviendrait rectangulaire après son refroidissement, ce qui rendrait extrêmement difficile - du fait de la fai- ble-différence de dimensions - de distinguer d'un coup d'oeil son grand côté en vue de la pose du plancher. Thus, a molded element in a square pan exactly become rectangular after cooling, which would make it extremely difficult - because of the FAI-ble-size difference - to distinguish a glance the large side for the laying the floor.  Si l'on ne tenait pas compte du sens de calandrage du caout- choué cru, lors de son introduction dans le moule, le grand côté de l'élément pourrait être muni tantôt de tenons, et tantôt de mortaises. If we ignored the direction of calendering rubberized Choué believed, when introduced into the mold, the long side of the element may be provided sometimes tenons, and sometimes mortise. 



    La forme rectangulaire choisie élimine complè- tement ces inconvénients, en permettant de distinguer fa- cilement, soit au moulage soit à la pose, et sans aucun marquage particulier, le grand côté de chaque élément, et par conséquent de réduire au minimum les variations de di- mensions de ces éléments lorsque les pièces brutes ont été calandrées toutes dans le même.sens. The chosen rectangular comple- ment eliminates these drawbacks, allowing to distinguish fa- culty or molding either installation, and without any special marking, the long side of each element, and therefore minimize variations in di- mensions of these items when the blanks were all calendered in même.sens. 



    De même que dans les formes de réalisation pré- cédentes de l'invention, ces éléments sont munis de tenons 11 et 12, prévus sur deux bords adjacents, pour assurer As in the embodiments pre- cédentes of the invention, these elements are provided with tenons 11 and 12 provided on two adjacent edges, to ensure 

  <Desc/Clms Page number 5> <Desc / CRUD Page number 5> 

    l'assemblage avec les éléments continus, et de mortaises 13, 14 prévues dans les deux autres bords. assembly with the continuous elements, and mortises 13, 14 provided in the two other edges. 



    Généralement,.et pour des éléments affectant la forme rectangulaire préférée, montrée dans la figure 7 ; Generally, .and to the elements affecting the preferred rectangular shape, shown in Figure 7;  on enfile le tenon porté par le grand côté d'un élément dans la mortaise du grand côté de l'élément adjacent, en dépla- çant un élément par rapport à l'autre dans le sens longitu- dinal, l'emboîtement de deux éléments adjacents, par leurs petits côtés, étant opéré par l'effet d'une pression diri- gée normalement à leur ligne de jonction. is threaded the pin carried by the long side of an element in the mortise of the long side of the adjacent element, by moving one member relative to the other in the direction longitu- dinal, the interlocking of two elements adjacent by their short sides, being operated by the effect of a pressure diri- normally EGE their connecting line. 



    Les tenons des éléments affectent, en coupe transversale, une forme en pointe de flèche 12a, et compor- tent une tige 12b se raccordant au bord de l'élément. The tenons of the elements affect, in cross section, a tip 12a shaped arrow, and tent compor- a rod 12b which adjoins the edge of the element.  La ppinte est de dimensions un peu inférieures à'celles de la partie 13a de la mortaise coopérante. The ppinte is of slightly smaller dimensions à'celles of the part 13a of the mating mortise.  Ces dimensions'par- ticulières des tenons et mortaises ont été choisies en vue de faciliter.l'emboîtement entre les éléments, qui pourrait mal s'opérer si les deux parties avaient les mêmes dimen- sions. These dimensions'par- ticular of mortise and tenon joints were chosen for faciliter.l'emboîtement between elements that could harm take place if both parties have the same dimensions. 



    Selon une autre caractéristique del'invention, la partie de la surface du bord de l'élément se trouvant au-dessus du tenon, et indiquée par 16 dans la figure 8, forme un anle c un peu inférieur à 90 avec un plan hori- zontal passant par le tenon, ce qui assure la juxtaposition étroite des arêtes supérieures des éléments adjacents. According to another characteristic del'invention, the portion of the edge surface of the element lying above the tenon, and indicated by 16 in Figure 8 forms a Anle c slightly below 90 with a plan hori- zontal via the pin, which provides close juxtaposition of the upper edges of adjacent elements. 



    On voit par la-figure 7 que les tenons sont un peu plus courts que le bord de l'élément qui les porte. la-FIG 7 is seen by that the pins are slightly shorter than the edge of the element that carries them. 



    Comme le montre la figure 9,qui représente une vue en. As shown in Figure 9, which shows a perspective.  coupe horizontale.d'un élément, dans la zone adja- cente à l'angle 17, où se terminent les deux mortaises 13 et 14, les extrémités de ces mortaises sont fermées, pour donner à l'angle 10a, formé de caoutchouc massif, une ré- sistance suffisante pour ne pas fléchir. horizontale.d'un cutting element in the region adja- recent at the corner 17, where the two mortises 13 and 14 is complete, the ends of these mortises are closed, to give the angle 10a, formed of solid rubber a re sufficient resistance to prevent sagging. 

  <Desc/Clms Page number 6> <Desc / CRUD Page number 6> 

 



    Selon la variante de réalisation montrée dans la figure 11, les tenons comportent des sections 22a, 22b, 22c, etc... et 21a, 21b, 21c, etc... séparées par des vides. According to the embodiment shown in Figure 11, the pins include sections 22a, 22b, 22c, etc ... and 21a, 21b, 21c, etc ... separated by voids. 



    Cette réalisation est plus particulièrement appropriée à l'exécution des petits côtés,' à assembler par engagement sous'pression, et non par déplacement du tenon le long de la mortaise. This achievement is particularly suitable for the execution of the short sides' commitment to be assembled by sous'pression, not by moving the pin along the mortise.  Cette dernière est préférablement continue sur les grands côtés, et interrompue sur les petits côtés, pour assurer l'emboîtement de ces derniers sous une pression exercée en direction normale par rapport 'au bord des deux éléments à joindre, en vue de prévenir tous déplacements latéraux. The latter is preferably continuous over the longitudinal sides and interrupted on the short sides, to ensure the interlocking of the latter under a pressure in the normal direction with respect to the edge of the two elements to be joined, in order to prevent any lateral displacements . 



    Selon une autre.variante de l'invention, mon- trée dans la figure 12, chaque tenon d'emboîtement comporte une portion 18 dépassant de,la partie inférieure du bord d'un élément de section en L, et se terminant par une tête 19 formant deux surfaces de portée 19a. According to autre.variante of the invention, MON Tree in Figure 12, each spigot comprises a portion 18 projecting from the lower part of the edge of a section of L-shaped element, and ending with a head 19 forming two bearing surfaces 19a.  Bien entendu, le tenon 18,19 vient s'engager dans une mortaise de forme correspondante, appartenant à l'élément adjacent. Of course, the tenon 18,19 engages in a correspondingly shaped mortise belonging to the adjacent element. 



    Il est évident que, tout en respectant le prin- cipe de l'invention, les détails constructifs et les for- mes de réalisation pourront varier par rapport aux exemples décrits et représentés, sans pour cela sortir du cadre de l'invention. Obviously, respecting the princi- ple of the invention, construction details and for- my realization may vary from the examples described and illustrated, without departing from the scope of the invention. 

Claims (1)

  1. EMI7.1 EMI7.1
    Tri 'B 7 H'N DI ÇA T 1 0 r S 1.- Plancher en caoutchouc ou matière analogue, caracté- rise en ce dû' il se compose d'éléments polygonaux munis de tenons et mortaises pour l'emboîtement réciproque de leurs bords. Tri 'B 7 H'n IT DI T 1 0 r S 1.- Floor rubber or the like, characterizes in that had it consists of polygonal elements provided with tongues and grooves for mutual engagement of their edges.
    2. - Plancher selon la revendication 1, caractérisé en ce que les moyens d'emboîtement comportent des tenons en queue d'aronde prévus sur certains côtés des éléments, et des mortaises à section correspondante prévues sur les autres côtés de ces éléments. 2. - Floor according to claim 1, characterized in that the nesting means comprise dovetail tenons provided on some sides of the elements, and corresponding to section mortises provided on the other sides thereof.
    '3.-. '3.-. Plancher selon les revendications 1 et 2, caractérisé ' en ce que la partie supérieure des éléments polygonaux est en caoutchouc opposant à l'usure une résistance élevée, la partie inférieure étant établie en un caoutchouc plus sou- ple, voire même spongieux. Floor according to Claims 1 and 2, characterized 'in that the upper part of the polygonal members is rubber opposing wear high resistance, the lower part being established by a rubber more Sou ple, even sponge.
    4.- Plancher selon les revendications 1 à 3, caractérisé en ce que les éléments polygonaux sont munis de rainures inférieures pour l'aération, délimitant des blocs d'appui sur la structure sous-jacente. 4.- Floor according to Claims 1 to 3, characterized in that the polygonal members are provided with lower grooves for ventilation, delimiting the bearing blocks on the underlying structure.
    5.- Plancher selon les revendications 1 à 4, caractérisé en ce que les tenons prévus pour l'emboîtement des éléments sont interrompus à leurs extrémités, pour assurer la cir- culation de l'air entre les parties inférieure et supérieu- re du plancher. 5.- Floor according to Claims 1 to 4, characterized in that the pins provided for the interlocking elements are interrupted at their ends, to ensure the cir- culation of air between the bottom portions and the floor re supérieu- .
    6.- Plancher selon les revendications 1 à 5, caractérisé en ce que. 6.- Floor according to Claims 1 to 5, characterized in that. des rainures sont prévues sur les bords des <Desc/Clms Page number 8> éléments polygonaux, pour recevoir des listeaux assurant l'étanchéité des joints. grooves are provided on the edges of the <Desc / CLMS Page number 8> polygonal members, for receiving strips sealing the joints.
    7. - Plancher en caoutchouc ou matières analogues selon la revendication 1, caractérisé en ce que les tenons de ses éléments affectent en section transversale une forme en pointe de flèche, et comportent une tige se raccordant au bord de l'élément, cette pointe ayant des dimensions un peu inférieures à celles du logement des mortaises correspondantes de l'élément coopérant, la tige étant elle-même un peu plus longue que la section de la mortaise destinée à la recevoir. 7. - Floor rubber or similar materials according to claim 1, characterized in that the pins of its elements affect cross-section shaped arrowhead and comprises a shaft which adjoins the edge of the element, the tip having somewhat smaller dimensions than the housing of the corresponding mortises of the cooperating member, the rod itself being somewhat longer than the section of the slot intended to receive it.
    8.- Plancher selon la revendication 7, caractérisé en ceque la partie de la surface du bord de l'élément se trouvant au-dessus du tenon forme avec un plan horizontal passant par le tenon un angle un peu inférieur à 90 , en vue d'assurer la juxtaposition étroite des arêtes supérieures des éléments adjacents. 8. A floor according to claim 7, characterized in thatthe part of the surface of the edge of the element lying above the tenon shape with a horizontal plane passing through the pin at an angle somewhat less than 90, in order to ensuring close juxtaposition of the upper edges of adjacent elements.
    9. - Plancher selon la revendication 1, caractérisé en ce que les tenons sont un peu plus,courts que leurs mortaises coopérantes. 9. - Floor according to claim 1, characterized in that the pegs are a little more, shorter than their mortises cooperating.
    10.- Plancher selon larevendication 1, caractérisé en ce que les extrémités des mortaises prévues sur deux bords adjacents du même élément sont fermées. 10.- Floor according larevendication 1, characterized in that the ends of mortises provided on two adjacent edges of the same element are closed.
    11.- Plancher selon la revendication 1., caractérisé en ce que les tenons comportent des sections séparées par des vides . 11.- Floor according to claim 1., characterized in that the pegs comprise sections separated by voids. <Desc/Clms Page number 9> <Desc / CRUD Page number 9>
    12.-- Plancher selon la revendication 1, caractérise en ce que les tenons et les mortaises d'emboîtement d'éléments adjacents sont déplacés, pour l'emboîtement, suivant une direction normale au plan des éléments, les tenons étant à ceteffet munis d'une tige d'équerre. 12 .-- floor according to claim 1, characterized in that the tenons and mortises of adjacent engagement elements are moved, for the engagement, in a direction normal to the plane of the elements, the tenons being fitted to ceteffet a square rod.
    13 .- Plancher selon la revendication 1 , caractérisé en ce que ses éléments polygonaux affectent une forme rectangulaire, leur longueur étant égale à deux fois leur largeur. 13 .- floor according to claim 1, characterized in that its polygonal elements affect a rectangular shape, their length being equal to twice their width.
BE557844D 1956-06-27 1957-05-27 BE557844A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT965656 1956-06-27

Publications (1)

Publication Number Publication Date
BE557844A true BE557844A (en) 1957-06-15

Family

ID=11239688

Family Applications (1)

Application Number Title Priority Date Filing Date
BE557844D BE557844A (en) 1956-06-27 1957-05-27

Country Status (5)

Country Link
BE (1) BE557844A (en)
CH (1) CH345451A (en)
DE (2) DE1212275B (en)
FR (1) FR1175582A (en)
GB (1) GB812671A (en)

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EP2116666A1 (en) * 1999-06-30 2009-11-11 Akzenta Paneele + Profile GmbH Fastening system for panels and panel
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US7877956B2 (en) 1999-07-05 2011-02-01 Pergo AG Floor element with guiding means
US7908816B2 (en) 2003-03-24 2011-03-22 Kronotec Ag Device for connecting building boards, especially floor panels
EP2267239A3 (en) * 1999-02-10 2011-04-27 Pergo (Europe) AB Flooring material consisting of floor boards which are intended to be joined vertically
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US8631623B2 (en) 2010-01-15 2014-01-21 Pergo (Europe) Ab Set of panels comprising retaining profiles with a separate clip and method for inserting the clip
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
US9476208B2 (en) 2010-04-15 2016-10-25 Spanolux N.V.—Div. Balterio Floor panel assembly
US9003735B2 (en) 2010-04-15 2015-04-14 Spanolux N.V.—Div. Balterio Floor panel assembly
US8997430B1 (en) 2010-04-15 2015-04-07 Spanolux N.V.-Div. Balterio Floor panel assembly
US9593491B2 (en) 2010-05-10 2017-03-14 Pergo (Europe) Ab Set of panels
US8978334B2 (en) 2010-05-10 2015-03-17 Pergo (Europe) Ab Set of panels
WO2019081016A1 (en) 2017-10-25 2019-05-02 Xylo Technologies Ag Flooring system with enhanced flexibility

Also Published As

Publication number Publication date
GB812671A (en) 1959-04-29
DE1814830U (en) 1960-07-14
DE1212275B (en) 1966-03-10
FR1175582A (en) 1959-03-27
CH345451A (en) 1960-03-31

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