Infill For Artificial Turf System
AssigneeBrock USA, LLC
InventorsStephen Keyser, Steven L. Sawyer
Life of this patent
Estimating the term…
Abstract
An artificial turf system includes a turf assembly having a turf backing and stands of artificial grass blades extending from the turf backing to form an artificial turf layer. Infill material is placed in between the blades of artificial grass and on top of the turf backing. The infill material has a composition of sand in an amount within the range of from about 80 to about 98 percent of the infill by dry bulk weight, and organic particles in an amount within the range of from about 2 to about 20 percent of the infill by dry bulk weight.
Claims12
A method of making an infill material, the method comprising the steps of:
- sectioning a disc blank of wood, the disc blank having a cut section plane transverse to a grain structure of the wood, the disc blanks having a moisture content in a range of about 10% to about 50% by weight;
- forming wood particles having a particle length dimension oriented generally parallel to the grain structure of the disc blank, the length dimension in a range of about 1 mm to about 10 mm;
- controlling a moisture content of the wood particles after the forming step to a range of about 10% to about 40% by weight;
- tumbling or abrading the wood particles such that edges of the wood particles are smoothed in comparison to a cut surface from the forming step having a sharp, angular edge form;
- and
- controlling a content of wood particles to a wood bark material to less than about 10 percent by volume of the wood bark material.
Dependencies are inferred from the claim text.