US 5,976,645 A · Vertically draining, rubber-filled synthetic turf and method of manufacture

Abstract

Vertically draining synthetic turf having reduced abrasiveness and increased resilience compared to conventional synthetic turfs. The vertical draining system of the present invention prevents water from accumulating on the turf surface, which could cause the top-dressing layer to "float" and be moved by inundation. The draining system of the present invention incorporates a porous geotextile membrane between an open graded aggregate layer and a sand layer above the aggregate layer to prevent the movement of one aggregate layer into the other. The top-dressing layer consists of resilient particles, preferably a mixture of high and low density rubber. The pile fabric preferably includes an isotropic non-woven backing to add dimensional stability.

Claims23

Dependent claims

A synthetic turf comprising:

a sub-surface layer;
a porous aggregate layer over said sub-surface layer;
a pile fabric over said porous aggregate layer, said pile fabric comprising a plurality of pile elements tufted to a backing, said backing comprising a woven layer and a non-woven layer bound together;
and
an infill for said pile fabric, said infill consisting essentially of resilient particles.

2 more elements

Dependencies are inferred from the claim text.

Vertically draining, rubber-filled synthetic turf and method of manufacture

Life of this patent

Vertically draining, rubber-filled synthetic turf and method of manufacture

Life of this patent

Abstract

Claims23