An impact-absorbing assembly includes a covering layer being one or more of artificial turf, rubber mats, polymer mats, short pile carpeting, particulate infill, wood chips, and ground rubber chips. Also included is a layer of underlayment panels positioned beneath the covering layer. The panels have a panel section with a plurality of drain holes formed therethrough. A top surface of the panels is configured to support the covering layer. A bottom surface of the panels has a plurality of bottom projections that cooperate to define bottom channels suitable to permit water flow across the bottom surface, the bottom channels being in fluid communication with the panel drain holes. The bottom projections define a first spring rate characteristic that is part of a first stage and a second spring rate characteristic is part of a second stage, the first stage having a smaller volume of material than the second stage.

A flooring element suitable for connection to other elements in a flooring system. The flooring element comprises a body, a female connector and a retainer. The body defines a connector surface that is horizontal when in use. The female connector comprises a connector recess which is suitable for receiving a male connector and also which defines a connector opening in the connector surface. The retainer is connectable to the body such that, while it is connected to the body, the retainer is movable between and open position and a closed position. When in the closed position, the retainer is arranged to restrict movement of the male connector to guard against the male connector exiting the connector recess through the connector opening. When in the open position, the retainer does not restrict movement of the male connector thereby permitting the male connector to exit the connector recess through the connector opening.

A linkage brick assembly, comprising: a least one first linkage brick, at least one second linkage brick and at least one third linkage brick, each linkage brick comprising a top face, a bottom face and four side faces between the top face and the bottom face. Each of the side faces of the first linkage brick forms a traverse engaging groove extending laterally. Each of two opposite side faces of the four side faces of the second linkage brick forms a traverse engaging protrusion extending laterally and each of the other two opposite side faces forms a vertical engaging portion extending vertically. Each of the side faces of the third linkage brick forms a vertical engaging groove extending vertically. Each of the traverse engaging grooves of the first linkage brick is used to engage with each of the traverse engaging protrusions of the second linkage brick through lateral sliding. Each of the vertical engaging grooves of the third linkage brick is used to engage with each of the vertical engaging protrusions of the second linkage brick through downward sliding. Assembly of the linkage brick assembly of a large area can be achieved by way of the interlocking of only three types of linkage bricks.

A linkage brick assembly, comprising: a least one first linkage brick, at least one second linkage brick and at least one third linkage brick, each linkage brick comprising a top face, a bottom face and four side faces between the top face and the bottom face. Each of the side faces of the first linkage brick forms a traverse engaging groove extending laterally. Each of two opposite side faces of the four side faces of the second linkage brick forms a traverse engaging protrusion extending laterally and each of the other two opposite side faces forms a vertical engaging portion extending vertically. Each of the side faces of the third linkage brick forms a vertical engaging groove extending vertically. Each of the traverse engaging grooves of the first linkage brick is used to engage with each of the traverse engaging protrusions of the second linkage brick through lateral sliding. Each of the vertical engaging grooves of the third linkage brick is used to engage with each of the vertical engaging protrusions of the second linkage brick through downward sliding. Assembly of the linkage brick assembly of a large area can be achieved by way of the interlocking of only three types of linkage bricks.

A structural element for forming a ground covering, in particular in an outdoor area, including a rectangular tile. A molded-on portion which is made of a plastic material and runs around the edge of the tile like a frame is preferably injection-molded and/or foamed onto the tile.

The Alphacube invention is a collection of modular shapes that form cubes, each letter of the alphabet and that are a twisty cube puzzle that can be solved for each letter of the alphabet. The pieces can both build structures and communicate verbal messages. They are a toy, puzzle, and an educational tool to teach literacy in a fun and engaging way. The pieces can also be assembled into artistic shapes or into basic shapes that describe animals and simple things like a small hole on a flat surface.

The Alphacube invention is a collection of modular shapes that form cubes, each letter of the alphabet and that are a twisty cube puzzle that can be solved for each letter of the alphabet. The pieces can both build structures and communicate verbal messages. They are a toy, puzzle, and an educational tool to teach literacy in a fun and engaging way. The pieces can also be assembled into artistic shapes or into basic shapes that describe animals and simple things like a small hole on a flat surface.

A paver system configured for installation on an existing hardscape. The paver system includes paving stones having a concave bottom surface. The concavity intersects edges of the paver to enable runoff to flow beneath and between the pavers. The concavity may also reduce the weight and material requirements of the paver while also increasing the strength of the paver. An underlayment is provided that includes a bottom surface with a plurality of intersecting channels. The underlayment is bonded to an existing hardscape, such as a concrete pad, and the pavers are arranged and bonded to the top surface of the underlayment. Rainwater and other runoff are allowed to flow between and under the pavers through the concave bottom portions thereof and through the channels in the underlayment. The paver system provides a strong, stable installation with sufficient drainage to resist damage caused by retained water.

A tile for cladding and paving comprises a single body made from a ceramic material. The tile comprises a main area that has a substantially polygonal plan having between five and ten sides and at least one additional area located on at least one side of the main area. Each additional area has an irregular polygonal plan, such that one of the longer sides of the additional area faces one of the sides of the main area.

A tile for cladding and paving comprises a single body made from a ceramic material. The tile comprises a main area that has a substantially polygonal plan having between five and ten sides and at least one additional area located on at least one side of the main area. Each additional area has an irregular polygonal plan, such that one of the longer sides of the additional area faces one of the sides of the main area.