Paving stone, process for manufacturing same and device for carr

Road structure – process – or apparatus – Pavement – Modules or blocks

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404 39, 404 42, 52314, 52605, E01C 500

Patent

active

046277641

ABSTRACT:
The paving stone comprises a recess which divides the stone into an upper part having a smaller circumference and a lower part with a greater circumference. The lower part, having also a greater height than the upper part, comprises a ribbing or other vertically oriented interlocking means and the upper part can have the appearance of a natural stone. The shape of either the upper or the lower part may be chosen arbitrarily and independent from each other. The molding box for the manufacturing of such paving stones is made of two pieces joined together and comprises the corresponding recess. The lower piece comprises an insert for forming interlocking means.

REFERENCES:
patent: 572762 (1896-12-01), Landers
patent: 829480 (1906-08-01), Mills
patent: 2108226 (1938-02-01), Johnston
patent: 3242832 (1966-03-01), Schnaar
patent: 3870423 (1975-03-01), Peitz, Jr.
patent: 3873225 (1975-03-01), Jakobsen et al.
patent: 3891340 (1975-06-01), Bolli
patent: 3922105 (1975-11-01), Bolli
patent: 3940229 (1976-02-01), Hutton
patent: 4185939 (1980-01-01), Barth et al.
patent: 4326817 (1982-04-01), Boiardi

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