US 12,281,713 B1
Biogas digester check valve
Brian Paul Crook, Montgomery, TX (US); and Terry Lee Bares, Jr., Rayne, LA (US)
Assigned to Southern Valve & Control, LLC, Broussard, LA (US)
Filed by Brian Paul Crook, Montgomery, TX (US); and Terry Lee Bares, Jr., Rayne, LA (US)
Filed on Nov. 7, 2023, as Appl. No. 18/387,805.
Claims priority of provisional application 63/431,275, filed on Dec. 8, 2022.
Int. Cl. F16K 15/04 (2006.01); F16K 15/02 (2006.01); F16K 27/02 (2006.01)
CPC F16K 15/04 (2013.01) [F16K 15/021 (2013.01); F16K 27/0209 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A biogas digester check valve assembly, configured to eliminate liquids in a methane gas gathering system; the biogas digester valve comprising:
a cage retainer plate, joined to a plurality of threaded valve cage rods;
a valve pill float, fit inside the plurality of threaded valve cage rods and against the cage retainer plate;
a valve soft seat, joined to a soft seat retainer and the valve seat;
a carrier base plate is joined to the valve seat and the plurality of threaded valve cage rods;
a valve seat carrier, joined to the valve seat;
a valve body top half, joined to the carrier base plate;
a weld neck flange, joined to the carrier base plate with a check valve;
wherein the valve pill float locks the biogas digester valve to prevent liquids from leaving the methane gas gathering system and permitting methane gas to exit.