US 12,291,829 B2
Expanded multilayer integral geogrids and methods of making and using same
Andrew Curson, Burnley (GB); Tom-Ross Jenkins, Baildon (GB); Andrew Edward Waller, Newton le Willows (GB); Daniel John Gallagher, Adlington (GB); Daniel Mark Baker, Broomfield, CO (US); Manoj Kumar Tyagi, Fayetteville, GA (US); and Joseph Cavanaugh, Cumming, GA (US)
Assigned to TENSAR INTERNATIONAL CORPORATION, Alpharetta, GA (US)
Filed by Tensar International Corporation, Alpharetta, GA (US)
Filed on Dec. 19, 2022, as Appl. No. 18/067,918.
Claims priority of provisional application 63/291,624, filed on Dec. 20, 2021.
Prior Publication US 2024/0200297 A1, Jun. 20, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. E02D 3/02 (2006.01); B29C 48/00 (2019.01); B29C 48/21 (2019.01); B32B 3/26 (2006.01); B32B 5/18 (2006.01); B32B 7/02 (2019.01); B32B 27/06 (2006.01); B32B 27/32 (2006.01); B32B 37/20 (2006.01)
CPC E02D 3/02 (2013.01) [B29C 48/0012 (2019.02); B29C 48/21 (2019.02); B32B 3/266 (2013.01); B32B 5/18 (2013.01); B32B 7/02 (2013.01); B32B 27/065 (2013.01); B32B 27/32 (2013.01); B32B 37/206 (2013.01); B32B 2250/03 (2013.01); B32B 2250/40 (2013.01); B32B 2264/1021 (2020.08); B32B 2264/1022 (2020.08); B32B 2264/1026 (2020.08); B32B 2264/1027 (2020.08); B32B 2264/104 (2013.01); B32B 2264/108 (2013.01); B32B 2266/025 (2013.01); B32B 2305/02 (2013.01); B32B 2305/022 (2013.01); B32B 2305/30 (2013.01); B32B 2307/516 (2013.01); B32B 2307/518 (2013.01); B32B 2309/105 (2013.01); B32B 2323/00 (2013.01); E02D 2250/0015 (2013.01); E02D 2300/0006 (2013.01); E02D 2300/0046 (2013.01); E02D 2300/0051 (2013.01); E02D 2300/0079 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An expanded multilayer integral geogrid for interlocking with and reinforcing aggregate, said integral geogrid comprising:
a plurality of interconnected oriented strands and partially oriented junctions forming a repeating pattern of outer hexagons having an array of openings therein;
supporting ribs extending inwardly from each of said outer hexagons to support inside each of said outer hexagons a smaller inner hexagon having an open center and oriented strands and tri-nodes,
said outer hexagons, said supporting ribs and said inner hexagons defining three different geometric configurations which are repeating throughout an entirety of the geogrid,
said oriented strands and said partially oriented junctions of said outer hexagon forming a plurality of linear strands that extend continuously throughout the entirety of the expanded multilayer integral geogrid,
said integral geogrid having a plurality of layers each of a polymeric material extending throughout said geogrid, and
with at least one inner layer of said plurality of layers having an expanded structure containing a distribution of voids therein.