Base for turf system

  • US 9,790,646 B2
  • Filed: 12/07/2016
  • Issued: 10/17/2017
  • Est. Priority Date: 01/19/2007
  • Status: Active Grant
First Claim
Patent Images

1. A turf underlayment layer comprised of an assembly of panels, the panels including a top side having a plurality of projections, a bottom side, and panel edges, the plurality of top side projections forming top side channels that extend across the top side of the panel to allow drainage of fluid across the top side of the panel, and the bottom side having bottom side channels that extend across the bottom side of the panel to allow drainage of fluid across the bottom side of the panel, the panels being shaped with a recess for interlocking with one or more adjacent panels in the assembly of panels, and the panels are made from a plurality of polyolefin beads, the plurality of polyolefin beads bonded together by at least one of pressure and heat to produce a substantially water-impervious surface.

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