PANEL Russian patent published in 2023 - IPC E04F15/02 

FIELD: construction structures.

SUBSTANCE: panels. The panel has first and second pairs of edges. The first pair of edges is provided with a groove profile on the edge of the panel and a ridge profile complementary to it on the opposite edge of the panel, which can be connected with positive locking by rotational movement. The second pair of edges on their opposite edges of the panel is provided with receiving and fixing hooks connected by moving along the joint in a plane perpendicular to the plane of the panel and simultaneously rotating for the first pair of edges, provided that the receiving hook has a retaining groove or the fixing hook with a retaining groove under a separate locking element for blocking action in the vertical direction. A butt surface is located on the receiving hook, and a mating butt surface is located on the fixing hook. On the second pair of edges at the lower end of the mating butt surface of the locking hook or at the lower end of the butt surface of the receiving hook, at least one sealing protrusion is provided, running parallel to the corresponding edge of the panel along the entire length of the mating butt surface.

EFFECT: counteracting the flow of water at the joints of the panels.

9 cl, 11 dwg