Stock material or miscellaneous articles – Two dimensionally sectional layer – Next to unitary web or sheet of equal or greater extent
Patent
1988-06-21
1990-05-01
Thomas, Alexander S.
Stock material or miscellaneous articles
Two dimensionally sectional layer
Next to unitary web or sheet of equal or greater extent
428172, 428188, 404 32, B32B 316
Patent
active
049217410
ABSTRACT:
The present invention is directed to a recreation surface which consists of a plurality of resilient, liquid-porous tiles adhered to a liquid-porous sheet that overlies a porous sub-surface and is anchored to the ground. In this way, the tiles are fixed and displacement or removal thereof is inhibited; additionally the porous tiles and sheet facilitate drainage of water from the recreation surface into the porous subsurface.
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patent: 3828503 (1974-08-01), Hofmann
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patent: 4044179 (1977-08-01), Haas, Jr.
patent: 4387130 (1983-06-01), See
patent: 4468910 (1984-09-01), Morrison
patent: 4679963 (1987-07-01), Heath
Carlisle Tire & Rubber Company
Thomas Alexander S.
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