Selectech, Inc.

John P Vanderhoef

Robert J E Bergeson

A polymeric interlocking tile for an adhesive-free assemblage with adjacent tiles having substantially similar, but inverted, edge interlocks thereon. The interlocks on each edge of a tile include a row of first and second sets of male-female types of alternating interlocks. The first interlock set includes a male lug projection having sidewalls forming one sidewall of a channel of U-shaped cross-section. The channel forms a female interlock cavity for the first set. The second interlock set is contiguous to the first set and includes a male projecting rib having two parallel sidewalls, one sidewall faces the edge and forms an opposite sidewall of the channel and an opposite, inwardly facing sidewall forms an enclosure for a second female cavity of the next set. At the opposite ends of each interlock row, the U-shaped channel sidewalls are wider to facilitate an initial interlock meshing between contiguous tiles of the assemblage.

Interlocking tile

Knee pad

A plastic standoff block having a substantially H-shape cross-section that is used for mounting a guardrail barrier to a vertical support post. The standoff block has horizontally disposed dual compression-resisting zones comprised of two back-to-back cavitated block modules joined by a common vertically disposed support base. In accordance with one embodiment, the support base extends outwardly from the modules to form a peripheral shoulder for a plurality of elongated horizontally disposed struts that buttress the modules against transverse buckling.

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Cummaquit, MA, United States of America

John P Vanderhoef