US 12,313,619 B2
Agricultural sampling system and related methods
Todd Swanson, Morton, IL (US); Timothy A. Schaefer, Tremont, IL (US); and Riley Litwiller, Tremont, IL (US)
Assigned to Precision Planting LLC, Tremont, IL (US)
Filed by Precision Planting LLC, Tremont, IL (US)
Filed on Jun. 27, 2024, as Appl. No. 18/756,467.
Application 18/756,467 is a continuation of application No. 17/343,536, filed on Jun. 9, 2021, granted, now 12,031,970.
Application 17/343,536 is a continuation in part of application No. PCT/IB2021/052876, filed on Apr. 7, 2021.
Application 17/343,536 is a continuation in part of application No. PCT/IB2021/052872, filed on Apr. 7, 2021.
Application 17/343,536 is a continuation in part of application No. PCT/IB2021/052874, filed on Apr. 7, 2021.
Application 17/343,536 is a continuation in part of application No. PCT/IB2021/052875, filed on Apr. 7, 2021.
Claims priority of provisional application 63/017,789, filed on Apr. 30, 2020.
Claims priority of provisional application 63/018,153, filed on Apr. 30, 2020.
Claims priority of provisional application 63/018,120, filed on Apr. 30, 2020.
Claims priority of provisional application 63/017,840, filed on Apr. 30, 2020.
Prior Publication US 2024/0369525 A1, Nov. 7, 2024
Int. Cl. G01N 33/24 (2006.01); A01B 79/00 (2006.01); B01L 3/00 (2006.01); F04B 13/02 (2006.01); F04B 19/00 (2006.01); F04B 43/073 (2006.01); F16K 99/00 (2006.01)
CPC G01N 33/24 (2013.01) [A01B 79/005 (2013.01); B01L 3/50273 (2013.01); B01L 3/502738 (2013.01); F04B 19/006 (2013.01); B01L 2200/0605 (2013.01); B01L 2300/0816 (2013.01); B01L 2300/0877 (2013.01); B01L 2300/0883 (2013.01); B01L 2300/0887 (2013.01); F04B 13/02 (2013.01); F04B 43/073 (2013.01); F16K 99/0015 (2013.01); F16K 99/0059 (2013.01); F16K 2099/0084 (2013.01); G01N 33/245 (2024.05)] 17 Claims
OG exemplary drawing
 
1. A microfluidic substrate for processing an agricultural sample slurry for analysis comprising:
a substrate body comprised of a plurality of polymeric planar layers coupled together;
the layers comprising in order of assembly:
a first outer layer including a plurality of liquid fittings and air fittings, the air fittings fluidly coupled to a pressurized air source;
a fluid distribution layer adjacent the first outer layer, the fluid distribution layer comprising a plurality of air distribution microchannels and first liquid distribution micro channels;
an air layer adjacent the fluid distribution layer, the air layer comprising a plurality of air pressure signal ports fluidly coupled to the air distribution microchannels of the fluid distribution layer;
a liquid layer adjacent the air layer, the liquid layer comprising a plurality of second liquid distribution microchannels; and
a second outer layer adjacent the liquid layer;
wherein the air layer and liquid layer codefine a plurality of micropumps at an interface between the air and liquid layers.