Static structures (e.g. – buildings) – Opaque stonelike module
Reexamination Certificate
2000-04-26
2001-07-24
Friedman, Carl D. (Department: 3635)
Static structures (e.g., buildings)
Opaque stonelike module
C052S392000, C052S607000, C404S034000
Reexamination Certificate
active
06263633
ABSTRACT:
BACKGROUND OF THE INVENTION
The invention relates to a (concrete) paving stone for producing surfacings over the ground, in particular paved surfaces, the paving stones being laid with (longitudinal and transverse) joints being formed between adjacent paving stones and the joints being filled with joint filling material. The invention also relates to a set of paving stones and a device for producing paving stones for curved sets.
The forming of paving stones from concrete has to meet increasingly high requirements. The outer appearance is to be attractive. Nevertheless, the paving stones are to form a surfacing over the ground that is resistant to rolling traffic loads by vertically and horizontally interlocking with adjacent paving stones—horizontal and vertical linkage. The invention is concerned with paving stones which ensure by the way in which they are formed a horizontal linkage and a vertical linkage within the paved surface. It deals with the special forming of such paving stones and the production of paving stones for curved sets.
SUMMARY OF THE INVENTION
The invention is based on the object of designing paving stones with horizontal linkage and vertical linkage in such a way that a supporting, load-bearing surfacing over the ground can be produced and special configurations of paved surfaces are possible.
To achieve this object, the paving stone according to the invention is characterized in that the joints formed between the adjacent paving stones have on account of appropriate shaping of side surfaces of the paving stones a cross section diverging downwards from an upper side of the stone to an underside of the stone.
The way in which the paving stone is formed according to the invention ensures that the longitudinal joints and/or transverse joints between the adjacent paving stones permit reliable filling with joint filling material, in particular sand and/or gravel. According to the invention, the gap width of the joints increases downwards, so that wedging of particles of the joint filling material is avoided. Wherever the joints are bounded by corresponding sloping surfaces of the paving stones, they have an angle which is less than the angle of repose of the joint filling material, in other words in particular less than 30°.
Furthermore, it is envisaged that the paving stones are provided with spacers at certain, selected regions of the side surfaces, to be specific exclusively in the region of a lower part of the stone.
For forming a paved surface with obliquely directed rows of paving stones, a set of edge stones according to the invention is proposed.
Finally, the invention comprises the special shaping of a concrete stone mould for the production of wedge-shaped paving stones. For this purpose, according to the invention moulding ridges are arranged on a pulling plate, converging in the pulling direction of the said plate. In a corresponding way, the (wedge-shaped) paving stones of different sizes are arranged in rows in such a way that the (transverse) dimensions decrease in the pulling direction of the pulling plate.
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Friedman Carl D.
Nguyen Chi
SF-Kooperation GmbH Beton-Konzepte
Sughrue Mion Zinn Macpeak & Seas, PLLC
LandOfFree
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