	US 12,116,734 B2
	Infill for artificial turf system
Stephen Keyser, Longmont, CO (US); and Steven L. Sawyer, Huntington Beach, CA (US)
Assigned to Brock USA, LLC, Boulder, CO (US)
Appl. No. 16/498,612
Filed by Brock USA, LLC, Boulder, CO (US)
PCT Filed Mar. 29, 2018, PCT No. PCT/US2018/025266 § 371(c)(1), (2) Date Sep. 27, 2019, PCT Pub. No. WO2018/183756, PCT Pub. Date Oct. 4, 2018.
Claims priority of provisional application 62/616,858, filed on Jan. 12, 2018.
Claims priority of provisional application 62/529,543, filed on Jul. 7, 2017.
Claims priority of provisional application 62/478,254, filed on Mar. 29, 2017.
Prior Publication US 2020/0102707 A1, Apr. 2, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. E01C 13/08 (2006.01); D06N 7/00 (2006.01)

CPC E01C 13/08 (2013.01) [D06N 7/0086 (2013.01); E01C 13/083 (2013.01); D10B 2505/202 (2013.01); Y10T 428/23921 (2015.04); Y10T 428/2982 (2015.01)]

20 Claims

1. An infill material disposed within an artificial turf carpet for an artificial turf system including an underlayment pad, said infill material comprising:

a plurality of wood particles, each particle defining a length dimension greater than a width or a thickness dimension, each particle length dimension being oriented generally parallel to a grain structure of each particle, the length dimension in a range of about 1 mm to about 10 mm, the length and one of the width or thickness dimensions defining an aspect ratio within a range of 1:2 to 10:1, each particle maintaining a water absorptive property that permits water to be retained by the particle and released over time to disperse heat from the infill material, the plurality of wood particles providing an infill particle-to-particle interaction within the artificial turf carpet that permits transfer of compressive applied loads to the underlayment pad of the artificial turf system and permits relative particle-to-particle movement from shearing loads applied to an upper surface of the infill material and the artificial turf carpet.