Interlocking paving stone for closed and open drainage patterns

Details Interlocking paving stone for closed and open drainage patterns Interlocking paving stone for closed and open drainage patterns

1992-02-03

1994-02-15

Friedman, Carl D.

Road structure, process, or apparatus

Pavement

Modules or blocks

404 38, 404 42, 523112, E01C 500

Patent

active

052861392

ABSTRACT:
A paving stone is provided that can be laid in a plurality of open patterns, each presenting a different amount of drainage area, while retaining an interlocking relationship between adjacent stones of the pattern. In the preferred embodiment, the stone can also be laid in a closed pattern, with no drainage areas provided other than the drainage at the boundaries of the stones. Each side surface of the stone has an odd number of faces, arranged in a stair-step shape. Preferably, each of the side surfaces is symmetrical about the center face, and all sides, or at least opposite sides, are identical.

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Text: Tilings and Patterns, Branko Grunbaum and G. C. Sheppard, W. H. Freeman and Company, New York (1987), p. 152.
Uni-Group U.S.A. Brochure, "Uni Eco-Stone", 1991.

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