Road structure – process – or apparatus – Process – Handling or treating preformed modular unit
Patent
1992-02-10
1993-02-16
Novosad, Stephen J.
Road structure, process, or apparatus
Process
Handling or treating preformed modular unit
404 41, 404 42, E01C 502, E01C 504, E01C 506
Patent
active
051865742
ABSTRACT:
A slab element for covering a ground surface and the like, the linear, curvilinear, and circular-design surfaces produced by the slab elements, and a method of forming the design surfaces. The slab element comprises a rectangular slab element having a convex and a concave end adapted to interlock and be rotatable, with grout material therebetween, and the peripheral sides of the slab element entirely curvilinear.
REFERENCES:
patent: 244594 (1881-07-01), Guyer
patent: 722580 (1903-03-01), Hill
patent: 1314586 (1919-12-01), France
patent: 2600090 (1957-12-01), France
patent: 2888779 (1959-06-01), Hostetter
patent: 4544305 (1985-10-01), Hair
Crowley Richard P.
Novosad Stephen J.
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