US 9,807,950 B2
Interlocking raft for deepwater culture hydroponics
James P. Day, Seattle, WA (US)
Assigned to SUNCREST, USA, INC., Seattle, WA (US)
Filed by Suncrest USA, Inc., Seattle, WA (US)
Filed on May 7, 2015, as Appl. No. 14/706,644.
Application 14/706,644 is a continuation of application No. PCT/US2014/066377, filed on Nov. 19, 2014.
Prior Publication US 2016/0135396 A1, May 19, 2016
Int. Cl. A01G 31/02 (2006.01); B63B 35/44 (2006.01)
CPC A01G 31/02 (2013.01) [B63B 2035/4493 (2013.01); Y02P 60/216 (2015.11)] 13 Claims
OG exemplary drawing
 
1. A raft for hydroponics comprising:
a plurality of opaque raft segments, each segment comprising a plurality of plant holes therethrough, at least one of said plant holes having a narrower bottom dimension than a top dimension, said raft segments reversibly attached together to form a raft to completely cover the surface of a pond, at least one of said segments having a plurality of thermal chimneys arrayed diagonally surrounding a plant hole, at least one of said thermal chimneys having a wider bottom dimension than a top dimension: and
one or more attachment devices to reversibly secure a raft segment to an adjacent raft segment with no gaps between them.