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US 5,348,417 AGranted
Compound pavement stone
AssigneeRolf Scheiwiller
InventorRene Scheiwiller
Life of this patent
Estimating the term…
Abstract
The side surfaces of compound stones are provided with relatively flat elements which interlock with little play when said stones are laid out, while adjoining side surfaces of neighboring stones are in contact along two lines only. A compromise between a sufficient mutual securement of the stones and a certain mutual mobility thereof is thus obtained. In particular, a certain tilting of neighboring stones with respect to each other is possible, whereby it is possible to produce pavements in uneven places.
Claims13
A compound pavement stone, comprising:
- a generally planar top surface;
- a plurality of side surfaces extending substantially at a right angle to said planar top surface and having a predetermined complementary pattern cut into said side surfaces;
- wherein said predetermined complementary pattern allows said compound pavement stone to interlock with another compound pavement stone also having said predetermined complementary pattern and provides a clearance between said compound pavement stone and said another compound pavement stone to thereby allow a mutual tilting of said compound pavement stone relative to said another compound pavement stone;
- wherein said predetermined complementary pattern is formed at least once on each of said plurality of side surfaces, said predetermined pattern comprising in sequence a convex portion, a recessed portion, a tooth, and a concave portion.
1 more element
A compound pavement stone, comprising:
- a generally planar top surface;
- a plurality of side surfaces extending substantially at a right angle to said planar top surface and having a predetermined complementary pattern cut into said side surfaces, said predetermined complementary pattern comprising a convex portion, a recessed portion, a concave portion, and a tooth;
- wherein said predetermined complementary pattern allows said compound pavement stone to interlock with another compound pavement stone also having said predetermined complementary pattern and provides a clearance between said compound pavement stone and said another compound pavement stone to thereby allow a mutual tilting of said compound pavement stone relative to said another compound pavement stone;
- and
- wherein said concave portion has a generally flat middle section extending between two arcuate end sections.
2 more elements
A compound pavement stone, comprising:
- a generally planar top surface;
- a plurality of side surfaces extending substantially at a right angle to said planar top surface and having a predetermined complementary pattern cut into said side surfaces, said predetermined complementary pattern comprising a convex portion, a recessed portion, a concave portion, and a tooth;
- wherein said predetermined complementary pattern allows said compound pavement stone to interlock with another compound pavement stone also having said predetermined complementary pattern and provides a clearance between said compound pavement stone and said another compound pavement stone to thereby allow a mutual tilting of said compound pavement stone relative to said another compound pavement stone;
- wherein said compound pavement stone is substantially formed in a shape of a parallelogram with said tooth portion being formed at each corner of said parallelogram.
1 more element
Dependencies are inferred from the claim text.