Abstract: A lightweight universal panel mat (100, 400, 500, 600, 700, 800, 1100, 1500, 1800, 2005, 2010, 2015, 2020) made of plastic or elastomeric material and having a first section that provides a relatively flat, textured or structured top surface to facilitate movement over the mat and a second section having geometry that includes a plurality of cells having top surfaces that support the first section. The panel mats have first, second, third and fourth sides (110,120,135,145) that are configured to matingly engage or connect to the second, third, fourth and first sides, respectively. The connection can be by insertion or snap-locking of one side to another, or by the use of fastening elements that more securely holds the sides together. Thus, similarly configured panel mats can be connected by interlocking to form a temporary support surface, deck, walkway or roadway.

Abstract: A felting device includes a rigid body having a bottom surface, an upper surface, and a perimeter surface. The bottom surface includes a plurality of grooves and a plurality of protrusions formed between the plurality of grooves. Each of the plurality of grooves includes a first side and a second side. The first side extends at an acute angle from the second side. The first and second sides define side surfaces of the each of the plurality of protrusions. The upper surface is opposite the bottom surface. The perimeter surface extends between the bottom surface and the upper surface. The perimeter surface defines perimeter sides of a set of protrusions of the plurality of protrusions that abut the perimeter surface.

Abstract: A pavement marking tape has raised, irregular polygonal relief features with retroreflective elements covering a portion of the surface of the tape. The form of the relief features minimizes shadowing effects. Raised relief features are shaped to increase the visible number of vertical faces and edges of the relief features, which are the most reflective structures, and are oriented toward incident light from an approaching observer to maximize retroreflectivity.