A vertical joint system for substrates is formed with joints and which engaged by relative motion in a direction perpendicular to major surfaces and of the substrate. The joints are configured to enable relative rotation of up to 3 degrees while maintaining engagement of the joints. The joints and are further configured to form two locking planes one on each of the inner and outer most sides of the joint. Engagement about the locking planes is provided by transverse outward extending surfaces. At least one surface in each pair of engaging surfaces is smoothly curved. The joints and can be further arranged to provide a third locking plane parallel to and between the locking planes. The joints are disengaged by combination of a downward rotation of one joint relative the other then application of a downward force.

A method and an apparatus for coating a solid wood floor and a solid wood floor are provided. The method for coating a solid wood floor includes providing a solid wood floor, where the solid wood floor has two side surfaces defining boundaries of a width dimension of the solid wood floor; and providing a polyethylene protective film, and adhering the polyethylene protective film to at least one of the two side surfaces. Therefore, external moisture can be prevented from entering the solid wood floor so as to avoid deformation of the floor due to moisture; an external dust, water, etc. can be prevented from entering between two adjacent solid wood floors; an overall appearance of the laid solid wood floors will not be affected by the coating; when the laid solid wood floors are subjected to force, no noise will be emitted, thereby improving customer satisfaction.

A set including a first panel, a second panel and a mechanical locking device for locking the first panel to the second panel, the mechanical locking device includes an insertion groove at the second edge surface, a flexible tongue positioned in the insertion groove and an edge tongue including a tongue groove, the flexible tongue includes a first locking surface and a second locking surface, the first locking surface is configured to cooperate with the tongue groove for locking of the first panel to the second panel in a first direction when the flexible tongue is positioned in the insertion groove in a first orientation, the second locking surface of the flexible tongue is configured to cooperate with the tongue groove for a locking of the first panel to the second panel in a first direction when the flexible tongue is positioned in the insertion groove in a second orientation.

A deck module includes deck panels having a plate shape extending in a first direction and having deck grooves formed in both side surfaces thereof in the first direction, a bottom structure disposed on lower portions of the deck panels in a second direction crossing the first direction, and quick clip modules connected to a side surface of the bottom structure, wherein the quick clip modules comprise quick clip bases extending in the second direction, quick clip protrusions protruding from the quick clip bases in a third direction orthogonal to the first direction and the second direction and having protrusion portions formed at ends of the quick clip protrusions to protrude in the second direction and correspond to the deck grooves, and quick clip supports protruding from the quick clip protrusions in the first direction.

A set including a first panel, a second panel and a mechanical locking device for locking the first panel to the second panel, the mechanical locking device includes an insertion groove at the second edge surface, a flexible tongue positioned in the insertion groove and an edge tongue including a tongue groove, the flexible tongue includes a first locking surface and a second locking surface, the first locking surface is configured to cooperate with the tongue groove for locking of the first panel to the second panel in a first direction when the flexible tongue is positioned in the insertion groove in a first orientation, the second locking surface of the flexible tongue is configured to cooperate with the tongue groove for a locking of the first panel to the second panel in a first direction when the flexible tongue is positioned in the insertion groove in a second orientation.

Floor panels and floor elements therefore are made of sheet-shaped cores which are formed with sealing means for preventing or counteracting changes in the properties of the floor panels caused by moisture. A floor panel, including a body having a core, in which floor panel at least two opposite parallel joint edge portions are provided with connectors for mechanical joining of the floor panel in the horizontal direction with similar floor panels, the connectors having active locking surfaces for cooperation with corresponding active locking surfaces of adjacent floor panels after the floor panel has been joined therewith, the core having an upper surface layer, wherein a material seal of a resilient surface layer covers the upper surface layer of the core.

A deck module includes deck panels having a plate shape extending in a first direction and having deck grooves formed in both side surfaces thereof in the first direction, a bottom structure disposed on lower portions of the deck panels in a second direction crossing the first direction, and quick clip modules connected to a side surface of the bottom structure, wherein the quick clip modules comprise quick clip bases extending in the second direction, quick clip protrusions protruding from the quick clip bases in a third direction orthogonal to the first direction and the second direction and having protrusion portions formed at ends of the quick clip protrusions to protrude in the second direction and correspond to the deck grooves, and quick clip supports protruding from the quick clip protrusions in the first direction.

A vertical joint system for substrates is formed with joints and which engaged by relative motion in a direction perpendicular to major surfaces and of the substrate. The joints are configured to enable relative rotation of up to 3 degrees while maintaining engagement of the joints. The joints and are further configured to form two locking planes one on each of the inner and outer most sides of the joint. Engagement about the locking planes is provided by transverse outward extending surfaces. At least one surface in each pair of engaging surfaces is smoothly curved. The joints and can be further arranged to provide a third locking plane parallel to and between the locking planes. The joints are disengaged by combination of a downward rotation of one joint relative the other then application of a downward force.

A method and an apparatus for coating a solid wood floor and a solid wood floor are provided. The method for coating a solid wood floor includes providing a solid wood floor, where the solid wood floor has two side surfaces defining boundaries of a width dimension of the solid wood floor; and providing a polyethylene protective film, and adhering the polyethylene protective film to at least one of the two side surfaces. Therefore, external moisture can be prevented from entering the solid wood floor so as to avoid deformation of the floor due to moisture; an external dust, water, etc. can be prevented from entering between two adjacent solid wood floors; an overall appearance of the laid solid wood floors will not be affected by the coating; when the laid solid wood floors are subjected to force, no noise will be emitted, thereby improving customer satisfaction.

A prefabricated modular joining assembly for an industrial flooring comprising a module including a prismatic body formed by two half-portions, being separated from one another by a deformable material zone, said half-portions being made of a synthetic resin and having a metal reinforcing framework embedded therein. The joining assembly is made by a method comprising the steps of: providing a box caisson; arranging a rubber membrane in the box caisson thereby separating two zones of the box caisson; arranging in the two zones a reinforcing metal framework; casting a resin material in the box caisson thereby embedding the reinforcing metal framework therein; removing, upon setting of the resin, the module thus formed; and applying the module in a recess formed in a floor at a joint to be restored.