US 11,746,476 B2
Subsurface irrigation system for a sports field
Martin Sternberg, Celebration, FL (US)
Assigned to CAPILLARY CONCRETE, LLC, Celebration, FL (US)
Filed by CAPILLARY CONCRETE, LLC, Celebration, FL (US)
Filed on Nov. 24, 2020, as Appl. No. 17/103,037.
Claims priority of provisional application 62/939,917, filed on Nov. 25, 2019.
Prior Publication US 2021/0156095 A1, May 27, 2021
Int. Cl. E01C 13/08 (2006.01); A01G 25/06 (2006.01); A01G 25/00 (2006.01)
CPC E01C 13/083 (2013.01) [A01G 25/06 (2013.01); A01G 2025/003 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A subsurface irrigation system for a sports field comprising:
a substantially water impermeable layer;
a plurality of water distribution boards positioned on top of the water impermeable layer;
a step interposed between a first water distribution board positioned lower than an adjacent water distribution board of the plurality of water distribution boards to follow a slope of the sports field layer;
a porous layer overlaying the water impermeable layer and the plurality of water distribution boards;
a sports field layer on top of the porous layer;
wherein the porous layer is configured to move water from the plurality of water distribution boards upwards to the sports field layer using capillary action.