US 12,247,360 B2
Infill for artificial turf system
Daniel C. Sawyer, Boulder, CO (US); Stephen Keyser, Longmont, CO (US); Steven L. Sawyer, Huntington Beach, CA (US); and Richard R. Runkles, Windsor, CO (US)
Assigned to Brock USA, LLC, Boulder, CO (US)
Filed by Brock USA, LLC, Boulder, CO (US)
Filed on Jun. 1, 2021, as Appl. No. 17/335,488.
Application 17/335,488 is a continuation of application No. 16/295,835, filed on Mar. 7, 2019, granted, now 11,021,842, issued on Jun. 1, 2021.
Application 16/295,835 is a continuation of application No. PCT/US2018/025266, filed on Mar. 29, 2018.
Claims priority of provisional application 62/733,116, filed on Sep. 19, 2018.
Claims priority of provisional application 62/731,499, filed on Sep. 14, 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 2021/0285166 A1, Sep. 16, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. E01C 13/08 (2006.01); D06N 7/00 (2006.01)
CPC E01C 13/083 (2013.01) [D06N 7/0086 (2013.01); E01C 13/08 (2013.01); D10B 2505/202 (2013.01); Y10T 428/23921 (2015.04); Y10T 428/2982 (2015.01)] 5 Claims
OG exemplary drawing
 
1. An artificial turf system comprising:
a turf carpet having a plurality of spaced apart synthetic grass blades attached to a backing layer;
an underlayment layer defining at least one of a water channeling characteristic or a water permeability characteristic; and
an infill material dispersed onto the turf carpet between the grass blades, the infill material including sand and a plurality of wood particles, at least a portion of the plurality of wood particles defining a length dimension oriented generally parallel to a grain structure of the wood particles, the length dimension in a range of about 1 mm to about 10 mm, and wherein the portion of wood particles maintains a water absorptive property that permits water to be retained by the portion of wood particles and released over time to disperse heat from the infill material.