EP3907350B1 - Assembly for setting the position of boards on the face of a wall and system for installing boards on the face of a wall - Google Patents

Assembly for setting the position of boards on the face of a wall and system for installing boards on the face of a wall Download PDF

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Publication number
EP3907350B1
EP3907350B1 EP21172357.2A EP21172357A EP3907350B1 EP 3907350 B1 EP3907350 B1 EP 3907350B1 EP 21172357 A EP21172357 A EP 21172357A EP 3907350 B1 EP3907350 B1 EP 3907350B1
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EP
European Patent Office
Prior art keywords
boards
board
grip
fixing
top surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP21172357.2A
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German (de)
English (en)
French (fr)
Other versions
EP3907350A1 (en
EP3907350C0 (en
Inventor
Michal Krzyzaniak
Artur Jarzab
Konrad Kula
Piotr Zemanek
Katarzyna Klimentowska
Joanna Bandakova
Agnieszka Didyk-Mucha
Krzysztof Placzkiewicz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Selena Industrial Technologies Sp Z OO
Original Assignee
Selena Industrial Technologies Sp Z OO
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Publication of EP3907350A1 publication Critical patent/EP3907350A1/en
Application granted granted Critical
Publication of EP3907350B1 publication Critical patent/EP3907350B1/en
Publication of EP3907350C0 publication Critical patent/EP3907350C0/en
Active legal-status Critical Current
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/0092—Separate provisional spacers used between adjacent floor or wall tiles
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/18—Implements for finishing work on buildings for setting wall or ceiling slabs or plates
    • E04F21/1838—Implements for finishing work on buildings for setting wall or ceiling slabs or plates for setting a plurality of similar elements
    • E04F21/1877—Leveling devices
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/20—Implements for finishing work on buildings for laying flooring
    • E04F21/22—Implements for finishing work on buildings for laying flooring of single elements, e.g. flooring cramps ; flexible webs

Definitions

  • the invention relates to an assembly of two elements for setting the position of boards on the face of a wall, i.e., the fixing-and-separating element (also called the positioner) and the positioner-pressing wedge that mounts it - system.
  • the invention can be applied in order to set the position of large-format boards, especially gypsum boards, OSB boards bonded to walls, or tiles - adjacent to each other on the top surface of, for example, walls or floors.
  • the subject matter of the invention is also a system for completely installing boards on the face of a wall, to be applied together with the positioning assembly, and it has the same application for completely installing boards together with setting their position on the face of a wall and together with positioning and fixing, especially gypsum boards, OSB boards bonded to walls, and tiles.
  • the assembly for positioning large-format boards on a top surface comprises means for fixing-and-separating for positioning a board on top surface and setting the gap between an adjacent board, and additionally comprises retaining wedge that is mounted to the means for fixing and separating enabling adjacent boards to be evenly placed on the top surface at such a distance in relation to each other determined by the thickness of the means for fixing-and-separating.
  • the means for fixing-and-separating comprise a base formed as resilient foot, which is adapted to be placed under the adjacent boards wherein a grip extends from the base at an angle of 90° whose thickness is adapted to the intended gap between the adjacent boards.
  • a narrowing is formed close to the base, wherein the means for fixing-and-separating and the retaining wedge are mutually shaped so that the retaining wedge is adapted to hitch a catch that is formed on the mean for fixing-and-separating so that the retaining wedge presses the adjacent boards to the base after adjacent board have been placed on the top surface.
  • the catch for the retaining wedge is formed on the grip in the opposite direction with regard to the base.
  • the retaining wedge is shaped making adapted to hitch the catch in such a way that after engaging the catch, the retaining wedge presses the adjacent boards to the base surface.
  • fastener unit comprises a similar clip - resilient engagement arm for the similar purpose.
  • the invention enables for reduce the working time significantly, eliminating process interruptions to a minimum, and ensures correct fixing of boards on a surface.
  • the subject matter of the invention is assembly for positioning large-format boards on a top surface that is characterized in that on the grip a pressing clip is formed, wherein the shape of the clip is adapted so as to stably press the upper surface of the board that is fixed to the top surface
  • the retaining wedge is U-shaped or U-like in shape, and on one of the surfaces of its arms, on the side of the fixing to the catch a serration is formed, which is shaped so as to match the shape of the catch.
  • the grip widens into an end that is a U-shaped flat handle of the grip with a thickness equal to the thickness of the grip, whereas the edge of the lower wall of the handle bevel formed on one side of the edge which constitutes the catch for the retaining wedge.
  • the shape of the catch is determined to the serration so that the retaining wedge is adapted to be hitched to the catch.
  • the height of the grip is between 5 mm and 16 mm.
  • the size of base has a span that enables place boards with a thickness of 5 to 16 mm.
  • the pressing clip towards the pressed surface of the clip there is a protrusion towards the pressed surface, wherein the angle of the protrusion to the pressed position is between 55 and 65 degrees.
  • the invention further relates to method for setting the position of large-format boards on a top surface, which method consists in fixing adjacent boards at a predetermined spacing, that is characterized in that the method is performed with use of the above mentioned assembly.
  • the invention further relates to a system for installing large-format boards on a top surface comprising above mentioned assembly.
  • the system has been performed based on the multi-element assembly for fixing boards, especially gypsum boards.
  • A-C together form a complete system for fixing, including bonding and finishing of large-format boards.
  • the composition of the complete system for installing the large-format boards is therefore the system for fixing, i.e., the three-element system described above, and the positioning assembly.
  • the additional system for completely installing includes the already-described assembly for positioning the boards in relation to each other.
  • the developed formulation of the glue allows to correct the position of the board up to 20 mm within 3 minutes after application, achieving initial hardening after 30 minutes (possibility of carrying out finishing works) and full hardening after 2 hours, whereas traditional glues require several days to fully harden.
  • the filling mixture - also called filling mass - based on a composition of acrylic dispersion with low VOC - Volatile Organic Compounds content is adapted for creating low-emissions building-industry chemicals.
  • the product cures without releasing hazardous substances with an unpleasant odour.
  • the dispersion is water resistant, which reduces water adsorption by the finished product.
  • the mixture of mineral fillers based on calcium carbonate and silicon ensures quick curing and drying of the product and facilitates final working of the hardened filling mass, i.e. painting and polishing.
  • the product fully hardens after 24 hours, i.e. 3 times faster than traditional technologies for the jointing of plaster boards.
  • Composition of the latest generation of fibres which increases flexibility of the finished product and resistance to cracking at the place of application. Thanks to the application of microfibre reinforcement, there is no need for traditional use of specialized reinforcing tapes during application, which significantly speeds up work both with the product itself and with the whole system.
  • rheology-modifying agents allows to obtain a product of paste consistency ready for application. It ensures easy application and spreading of the product and prevents the mass from flowing down from vertical surfaces.
  • composition of wetting agents and emulsifiers that ensures very good adhesion to the surface of commonly used construction-industry materials (in particular gypsum boards) without the need to use a primer.
  • Acrylic for gypsum boards it is a single-component sealant based on acrylic resins, designed for jointing corners when building with gypsum boards. It is characterized by high elasticity and it is perfect for painting during finishing works. It has excellent adhesion to surfaces typical of the construction industry, including damp surfaces, i.e. gypsum board, concrete, brick, plaster, wood, and stone. It is odourless, as well as resistant to frost and UV radiation.
  • the product contains a sealant based on a mixture of acrylic dispersion of high hardness so that the finished product is easy to work after drying, i.e. it is paintable and polishable.
  • the product also comprises a high-whiteness filler and flexiblity-increasing agents - giving the product high resistance to movement and, at the same time, preventing the application from cracking in the sealing area.
  • the product After drying, the product is characterized by high resistance to temperature changes, including negative temperatures, as well as UV radiation. The product dries and cures in a short time without giving off any odorous or hazardous substances.
  • Unhardened product can be removed from clothing or tools using water. It is characterized by high compatibility with typical building materials.
  • the invention enables precise, easy installation including fixing (including bonding) and positioning of adjacent boards on the top surface, as well as allows boards of different thicknesses to be joined together and a constant spacing between boards to be maintained without the need for continuous measuring and levelling.
  • fig. 1 shows a rear view of the positioner
  • fig. 2 shows a front view of the positioner
  • fig. 3 shows a side view of the positioner
  • fig. 4 shows the positioner and reveals the sharp tooth-shaped protrusion on the bottom surface of the clip
  • figs. 5 and 6 show a side view of the retaining wedge
  • fig. 7 shows a front view of the retaining wedge
  • fig. 8 shows the retaining wedge viewed from above
  • fig. 9 shows a front view of the positioner with the retaining wedge after installation between boards (from the fitter's side)
  • fig. 10 shows the positioner with the retaining wedge after installation between boards, viewed from above.
  • fixing-and-separating element 1 is used interchangeably with the term positioner 1, retaining wedge 2 - with setting wedge 2, and protrusion - with tooth.
  • the assembly for setting the position of large-format boards, e.g. gypsum boards, on the top surface of, e.g., a wall or a floor comprises two basic elements: the fixing-and-separating element (positioner 1) for setting the position of boards on a top surface, e.g. a wall or a floor, a part of which positioner is fixed to the top surface under the board and separates adjacent boards by the thickness of one of the parts.
  • the second part of the assembly is the retaining wedge 2, which is mounted to the catch of the positioner 1 and allows to put adjacent boards on the wall between them at a spacing determined by the thickness of the part of the positioner in such a way that they identically adhere from the outside from the face side, i.e.
  • Both elements of the assembly are mutually shaped in such a way that the retaining wedge can be engaged on a part of the fixing element - the catch Z formed on the grip C of the fixing-and-separating element (the positioner 1) so that the wedge presses the adjacent boards after they have been put on the top surface.
  • Both parts are made of plastic.
  • a minimum of 2 pieces of the positioning system are used for each side edge of the gypsum board, maintaining a joint of at most 3 mm between the boards. The positioning assembly is described further on (step 2).
  • Step 1 Glueing by adhesive the boards - using element A of the example qualitative and quantitative composition.
  • the single-component composition of the glue being described comprises a mixture of a prepolymer, foaming agents, a surface active agent, a catalyst and, optionally, application additives.
  • the prepolymer is obtained as a result of a reaction of a multi-isocyanate, most commonly a polymeric isocyanate of the MDI type, with a mix of polyols that includes a polyether polyol that is a diol, triol, or a mixture of them, having an average molecular weight within the range of 600-3000 (I), as well as a polyester polyol that is a diol, triol, or mixtures of them, having an average molecular weight within the range of 400-5000 (II), wherein the ratio of the weight parts of polyol (I) to polyol (II) is from 2:5 to 2:1 and the final product comprises free isocyanate groups in an amount of 9-15% by weight.
  • a multi-isocyanate most commonly a polymeric iso
  • Used as foaming agents are compounds selected from among alkanes, ethers, and their mixtures, in the total amount of 1.5-25 % by weight in relation to the total weight of the composition.
  • Used as surface active agents are reaction products of poly(alkylsiloxane) and alkylene oxides, wherein the alkylene oxides are ethylene oxide, propylene oxide, or their mixtures, in an amount of 0.6-3% by weight in relation to the total weight of the composition.
  • As catalysts it comprises selected tertiary amines or their mixtures in an amount of 0.3-3% by weight in relation to the total weight of the composition.
  • Used as optional application additives are flame retardants, most commonly based on chlorinated phosphates, as well as colouring agents to give the final product the desired colour.
  • the spreading rate of the product from a single 1,000 ml can is 10 m2, so using one can a person is able to, e.g.: install 3 full-size gypsum boards with the dimensions of 120 cm x 260 cm x 12.5 mm.
  • a piece of gypsum board or another material should be placed at the bottom of the wall as a spacer.
  • Glue should be applied on the board in the form of a 2-3 cm wide 'braid' along the board's perimeter and a 'zigzag' in the middle of the board. Empty space should be left between the braids applied along the edge of the board, to allow air to escape. During application, a distance of 5 cm from the edge of the board (the braid) should be maintained.
  • 'Bead' warkocz
  • warkocz is a technical term used in technical documentation to describe a section of released foam with a specified thickness and width on a given surface.
  • the diameter of braids may be adjusted to the needs of smoothing out the wall surface.
  • double braids should be applied layer upon layer.
  • Maximum unevenness that can be corrected with foamed glue i.e., glue with the consistency of foam created by releasing the mixture from a can under pressure onto the surfaces intended to be glued.
  • additional spacers should be used, e.g. made of elements of gypsum board or other board.
  • the board must be put against the glued surface. After the board has been put against the wall, it should be carefully pressed down and then pre-positioned. Damage to the structure of the glue by strongly pressing or hitting the board should be avoided.
  • use a set of positioners to adjust the final position of the board by carefully pressing the board against the wall relative to the adjacent board and by tightening the retaining wedge on the positioner. The correction should be made between 2 and 5 minutes after the initial application.
  • Step 2 positioning
  • the assembly for setting the position of large-format boards, e.g. gypsum boards, on the top surface of, e.g., a wall or a floor comprises two basic elements: the fixing-and-separating element (positioner 1) for setting the position of boards on a top surface, e.g. a wall or a floor, a part of which positioner is fixed to the top surface under the board and separates adjacent boards by the thickness of one of the parts.
  • the second part of the assembly is the setting retaining wedge 2, which is mounted to the catch of the positioner 1 and allows to put adjacent boards on the wall between them at a spacing determined by the thickness of the part of the positioner in such a way that they identically adhere from the outside from the face side, i.e.
  • Both elements of the assembly are mutually shaped in such a way that the setting retaining wedge 2 can be engaged on a part of the fixing element - the catch Z formed on the grip C of the fixing-and-separating element (the positioner 1) so that the retaining wedge 2 presses the adjacent boards after they have been put on the top surface.
  • Both parts are made of plastic.
  • the fixing-and-separating elements - means is known as the positioner 1 includes elements such as the base P preferably/optionally in the form of a springy skate-shaped foot - resilient foot, whose one part is applied under the reference board being installed (the first board) on one side, and on the other side under the next adjacent board being installed. From the base P there extends the vertical part of the positioner 1, i.e., the grip C, whose thickness is adapted to the intended spacing between the adjacent boards, and whose height exceeds the thickness of the boards. Formed in the vertical part, i.e., in the grip C, at the base P, there is the narrowing Pr of a thickness narrower than the remaining vertical part of the grip C. The grip C constitutes the vertical part of the positioner.
  • the pressing clip K Formed on the grip C - at the height of the thickness of the board measured from the base P - there is the pressing clip K oriented in the same direction as the part of the base that overlaps - covers the installed board, and the shape of the clip is adapted in such a way that the clip K stably presses the board fixed to the top surface.
  • the pressing clip K has a bevel towards the surface of the board being pressed after it has been fixed to the top surface, thus allowing the installed board to be pressed against the top surface.
  • the clip K allows the installed board to be pressed against the face wall.
  • the grip C allows the positioner to be mounted with the base P under the installed board and then the next board adjacent to it, as well as to mount the retaining wedge 2 on the two boards - the installed one and the adjacent one.
  • a tooth-like protrusion facing the pressed surface, the purpose of which is to gently penetrate the pressed surface and to immobilize the positioner in place for the entire time during which it is mounted, preventing it from slipping off or moving when, for example, manoeuvring a board or bringing another board in.
  • the angle of the protrusion to the pressed position is 60 degrees. Dimensions are shown in fig. 4 .
  • the grip C widens and ends in the U-shaped flat handle R whose thickness is equal to the vertical part of the grip C but wider, with the wider part of the handle R oriented at 90° in relation to the base P.
  • the edge of the lower wall of the handle has a formed bevel on one side of the edge (at the back, being the catch Z for the retaining wedge 2)
  • the retaining wedge 2 has a U-shaped or U-like form, a width (spacing of arms) that is adapted to the width of the grip C, and a height that is adapted to the height of the clip K of the positioner 1 and to the thickness of the boards so that the retaining wedge 2 can be engaged on the catch Z of the positioner in such a way that, when engaged, the retaining wedge K presses the adjacent boards to the top surface of, for example, a wall or a floor, after they have been fixed.
  • the boards may be of different thicknesses.
  • the serration Zo is a notched surface whose shape is adapted to the shape of the catch Z of the positioner 1; on the edge of the bottom wall of the handle R a bevel is formed, which constitutes the catch Z for the retaining wedge 2.
  • the flexible foot P of the positioner 1 allows boards of different thicknesses to be joined together. The surface of the board is tightened to the flat surface of the wedge, while the foot P bends to compensate for the thickness of the board.
  • the retaining wedge 2 - is mounted after the boards have been mounted - the installed board - the reference board, and the adjacent board or subsequent adjacent boards.
  • the positioner 1 After fixing the first board (the reference board) to the wall, the positioner 1 is mounted while the glue has not dried yet, so that the board can be moved away from the top surface and the base P of the positioner 1 can be pushed under the board (fixed on the top surface).
  • the clip K of the positioner 1 presses the installed board to the top surface.
  • the grip C is left in the fitter's hand - it is disposable, and under the boards the springy foot is left, i.e. the base P, which freely falls down to the ground after installing the boards and detaching the fixing element 1 thanks to the narrowing Pr between the base P in the vertical part.
  • the height range of the vertical part and of the grip C of the fixing element 1 varies from 5 mm to 16 mm, which makes it possible to work with different materials as well as to join boards of different thicknesses.
  • Installation of boards starts with putting the first board, e.g. gypsum board (the reference board) on the wall.
  • This board is positioned and levelled to the top surface e.g. a wall, floor.
  • the positioner 1 is pushed to its edge, by means of the grip C.
  • the base P covers the board to the top surface, and supports the positioner 1. In this way, the assistance of another person is not required.
  • the base P of the positioner 1 has rounded edges that make it easier to mount the positioner with the base P to the top surface, so that it goes under an already-installed board.
  • the base P does not need to be shaped in any particular way, but it has dimensions (a span) that allows to grab boards with a thickness between 5 and 16 mm.
  • the base P allows to attach the entire positioner 1 to the reference board and subsequent boards because the base P is on the top surface under the boards.
  • the base P allows to attach another board to the positioner 1 already attached to the reference board.
  • the next board is pushed to the edge of the grip C of the positioner 1 already mounted so that this next board (adjacent board) closely adheres to the grip C of the fixing-and-separating element 1 .
  • the thickness of the vertical part - the grip C - of the positioner 1 is, e.g., 2 mm, i.e., the minimum required spacing between the boards.
  • the next step is to slide the wedge 2 onto the vertical part of the fixing element - the grip C - so that both arms of the retaining wedge 2 encompass the grip C thus securing the retaining wedge 2 to the catch Z. Thanks to the bevel of the catch Z of the positioner 1, the retaining wedge 2 will get locked on the positioner 1 at the place suitable for the thickness of the board being positioned. The sliding of the retaining wedge 2 to the catch Z causes the board to get positioned (pushed out or in) and results in alignment of the surfaces of the adjacent boards, the reference board to the next board, the first board to the next board, etc.
  • the joint between the boards becomes rigid enough for two more boards to be placed - laid without waiting for the glue to fully bond.
  • the fitter pulls the grip C and tears off the positioner - the tearing off is possible thanks to the narrowing Pr of the positioner 1 located at the springy foot, which remains under the boards and freely falls out of the gap and down to the floor.
  • the grip C of the positioner 1 gets torn off, while the retaining wedge 2 falls out and can be reused for subsequent installation work.
  • the springy foot of the positioner 1 falls freely from the gap between the boards and, consequently, the required 2 mm gap is maintained.
  • Step 3 Filling with element B - ready-to-use filling mass, which comprises:
  • the spreading rate and consumption of the product is determined at 300g of product filling a joint of 1 running metre, assuming a gap width of 2-3 mm along the entire length of the joint.
  • step 4 the working of vertical and horizontal joints between boards.
  • the surfaces of the boards' joints must be properly prepared.
  • the boards should be stably fixed to the supporting structure, dry, free of dust and other contamination. Any sharp edges should be chamfered, dusted off, and primed.
  • the joining of boards and the filling of joints should be done with a spatula, applying the mass deep into the joint and smoothing out the external surface of the joint. After bonding, any minor unevenness should be removed.
  • polishing should be performed - manually or mechanically with a mesh sanding sheet or sand paper. Work should be carried out with clean tools to prevent lumps or holes in the surface.
  • Step 4 horizontal and vertical corners between the walls, ceiling, and floor using the element C described in detail in the example at the beginning, which comprises:
  • the spreading rate of one 280 ml cartridge of acrylic is determined to be approx. 11 running metres, assuming a joint depth and width of about 5 mm.
  • the surfaces being joined should be smoothed out and thoroughly cleaned (dust, rust, residues of old sealant or paint, grease and oil, and other contaminants removed).
  • the surface should be degreased with acetone or ethanol (glass, glaze, metals) or detergent (plastics).
  • the sealant should be applied using mechanical or pneumatic squeezers from 280 ml cartridges.
  • the cartridge outlet should be cut off above the thread and the application tip should be cut at a proper angle to the joint's width and screwed onto the outlet.
  • the gap should be thoroughly filled to ensure continuous adhesion of the sealant to the surface being sealed, and painter's tape should be used (and then removed immediately after finishing the working of the silicone) to prevent contamination of the joint vicinity and to maintain a straight line.
  • the joints should be smoothed out with a silicone spreading tool, spatula, finger, or rag dipped in water to reduce adhesion. Any excess unhardened sealant should be removed from hands, tools, and soiled surfaces with water or soapy water. After hardening, sealant should be removed from hands with soap and water and from tools - by mechanical means.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Finishing Walls (AREA)
EP21172357.2A 2020-05-06 2021-05-05 Assembly for setting the position of boards on the face of a wall and system for installing boards on the face of a wall Active EP3907350B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL433894A PL433894A1 (pl) 2020-05-06 2020-05-06 Układ do ustalania położenia płyt na ścianie wierzchniej oraz sposób mocowania płyt wielkopowierzchniowych na powierzchni wierzchniej

Publications (3)

Publication Number Publication Date
EP3907350A1 EP3907350A1 (en) 2021-11-10
EP3907350B1 true EP3907350B1 (en) 2023-08-30
EP3907350C0 EP3907350C0 (en) 2023-08-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP21172357.2A Active EP3907350B1 (en) 2020-05-06 2021-05-05 Assembly for setting the position of boards on the face of a wall and system for installing boards on the face of a wall

Country Status (4)

Country Link
EP (1) EP3907350B1 (es)
ES (1) ES2957161T3 (es)
PL (2) PL433894A1 (es)
WO (1) WO2021225460A1 (es)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7992354B2 (en) * 2007-03-26 2011-08-09 Q.E.P. Co., Inc. Device for leveling and aligning tiles and method for leveling and aligning tiles
US8966835B1 (en) * 2012-05-14 2015-03-03 New Standards Manufacturing Co. Reusable shim shell mechanical edge setting system and method for setting tiles and tuning lippage
ITBO20120593A1 (it) * 2012-10-30 2014-05-01 Ghelfi S R L Dispositivo livellante e distanziatore per la posa di piastrelle.
US9487959B2 (en) * 2013-04-09 2016-11-08 Clinton D. Bunch Device for leveling and aligning tiles and method for leveling and aligning tiles
PL68216Y1 (pl) * 2013-05-02 2016-02-29 Jerzy Wyrobek Przyrząd oddzielająco- poziomujący do układania okładzin w kształcie płytek
PL413169A1 (pl) * 2015-07-17 2017-01-30 Jarosław Zając Regulator krzyżykowy
AU2017220375B2 (en) * 2016-02-17 2022-08-04 Clik Tile System NZ Limited Tile levelling clip and system
US11149445B2 (en) * 2017-08-15 2021-10-19 National Nail Corp. Hidden fastener unit and related method of use

Also Published As

Publication number Publication date
WO2021225460A1 (en) 2021-11-11
EP3907350A1 (en) 2021-11-10
PL3907350T3 (pl) 2024-04-08
ES2957161T3 (es) 2024-01-12
EP3907350C0 (en) 2023-08-30
PL433894A1 (pl) 2021-03-08

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