Patent attributes
A levelling spacer device for the application of slabs for covering surfaces, including a base having a lower surface and an opposite upper surface, a separator element extending upwardly from the upper surface of the base, a threaded stem which rises up from the separator element, a pressing element able to screw into the threaded stem, and a corner spacer that rises up from the upper surface of the base. The separator element includes a main zone having side faces parallel to one another and spaced apart defining a first thickness of the main zone. The corner spacer includes two side edges parallel to one another and square-angled with respect to the side faces. The separator element includes a central zone proximal to the base having a non-zero second thickness smaller than the first thickness. The corner spacer joins the central zone and has a longitudinal axis perpendicular to the side faces.
