Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A two-piece hardtop for sport utility vehicles. An air vent is provided that allows air to flow out from the interior of the vehicle without letting water enter the vehicle through it.

Abstract: A two-piece hardtop for sport utility vehicles. The hardtop has front and rear roof sections removably securable to each other. The front and rear sections have overlapping portions, each of which has an inverted U-shape with vertically extending legs and a horizontally extending base between them. The U-shapes nest together with side latches being provided between adjacent legs of the front and rear sections to draw the two pieces vertically together and secure them in place. Other features include a sealing member that is provided between the nested roof sections and a gutter that is created between the sealing member and the rear roof section. The gutter helps to effectively direct water away from between the two roof sections and the vehicle. Additionally, an improved air vent is provided that allows air to flow out from the interior of the vehicle without letting water enter the vehicle through it.

Abstract: A two-piece hardtop for sport utility vehicles. The hardtop has front and rear roof sections removably securable to each other. The front and rear sections have overlapping portions, each of which has an inverted U-shape with vertically extending legs and a horizontally extending base between them. The U-shapes nest together with side latches being provided between adjacent legs of the front and rear sections to draw the two pieces vertically together and secure them in place. Other features include a sealing member that is provided between the nested roof sections and a gutter that is created between the sealing member and the rear roof section. The gutter helps to effectively direct water away from between the two roof sections and the vehicle. Additionally, an improved air vent is provided that allowing air to flow out from the interior of the vehicle without letting water enter the vehicle through it.