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US 4,405,665 AGranted
Ground covering with drainage-promoting members
AssigneeSociete Internationale de Revetements de sol S.A. - S.I.R.S.
InventorsMichel Beaussier, Henry Lesch, Emile Evon
Life of this patent
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Abstract
An artificial turf consists of a pile of filaments or strips of propylene or like weather-resistant material bonded to a support which can be doubled and which is provided on its reverse with an array of synthetic resin material projections disposed discontinuously along the underside. These projections are in the form of truncated pyramids with substantially rectangular bases and prevent migration of the covering because of walking on the ground covering.
Claims9
A water-permeable artificial turf ground covering, comprising:
- a water-permeable wear layer formed with:
- a grass-like array of nonputrescible synthetic resin pile tufts
- a water-permeable nonwoven or woven synthetic resin support thermally bonded to said tufts at lower ends thereof, and
- a nonwoven layer composed of polyester or glass fibers reinforcing said support and located therebelow;
- and
- an array of drainage-promoting members formed on an underside of said nonwoven layer opposite said elements, said members being disposed discontinuously along said underside of said layer and being composed of synthetic resin material and having the form of truncated pyramids with substantially rectangular bases.
3 more elements
Dependencies are inferred from the claim text.