Artificial Stone and Method of Making Same
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Accused Products
Abstract
A lightweight artificial stone system comprises a plurality of artificial stones, each of the artificial stones formed of at least some portion of cement, expanded glass, and styrene, the lightweight artificial stones having a density in the range of between about 30 and 70 pounds per cubic foot, each of the stones having six sides and including a first height dimension and a second width dimension, each of the height and width dimensions having a length unit being substantially a multiple of two, each of the stones having four ninety degrees corners and four of the six sides having a smooth surface to provide tight, cement-free seams between adjacent stones, the tight, cement-free seams inhibiting viewing of structure behind said plurality of artificial stones, each of the stones being of such a light weight so as to be held in position in the system by a lath-less and cement-free adhesive.
6 Citations
22 Claims
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1-12. -12. (canceled)
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13. An artificial stone comprising:
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a relatively lightweight molded stone having an appearance of a natural rock on at least one surface; said molded stone having a substantially sand-free consistent mixture of; cement being between about 60-90% by weight; and
,expanded glass particulate being about 20-39% by weight; said molded stone having a density of less than about 40 pounds per cubic foot and compression strength of less than about 900 pounds per square inch. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. (canceled)
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21. An artificial stone, comprising:
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a lightweight molded stone having an appearance of a natural rock on at least one surface; said lightweight molded stone being capable of being positioned on a low strength surface; said molded stone having a substantially sand-free consistent mixture of; cement being between about 60-90% by weight; expanded glass being about 20-39% by weight; said expanded glass being a plurality of beads generally spherical in shape, said beads having diameter size ranges of;
about 10-30% being about 0.25-0.5 mm in diameter;
about 10-30% being about 0.5-1 mm in diameter, about 14-34% being about 1-2 mm in diameter, and about 25-45% being about 2-6 mm in diameter.
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22-35. -35. (canceled)
Specification