US 12,420,219 B2
Stormwater treatment device
Jordan Douglas Scott, Vancouver, WA (US); Mathew Edward Bauer, Gresham, OR (US); Michael Benjamin Brooks, Battle Ground, WA (US); and Lindsey Blaire, Portland, OR (US)
Assigned to CONTECH ENGINEERED SOLUTIONS LLC, West Chester, OH (US)
Filed by CONTECH ENGINEERED SOLUTIONS LLC, West Chester, OH (US)
Filed on Feb. 16, 2023, as Appl. No. 18/170,378.
Application 18/170,378 is a continuation in part of application No. 17/397,252, filed on Aug. 9, 2021, granted, now 11,713,569.
Claims priority of provisional application 63/064,651, filed on Aug. 12, 2020.
Prior Publication US 2023/0219021 A1, Jul. 13, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B01D 33/11 (2006.01); B01D 33/76 (2006.01); B01D 33/80 (2006.01); C02F 1/00 (2023.01); C02F 103/00 (2006.01)
CPC B01D 33/11 (2013.01) [B01D 33/76 (2013.01); B01D 33/801 (2013.01); C02F 1/001 (2013.01); C02F 2103/001 (2013.01); C02F 2301/043 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A stormwater treatment device, comprising:
a tank defining an internal volume and having an inlet and an outlet;
a rotatable screen unit mounted within the tank, the rotatable screen unit defining a through path with an inlet end and an outlet end, the rotatable screen unit includes a screen structure with a plurality of screening openings for allowing passage of at least some stormwater from the through path outwardly through the screen structure while inhibiting passage of at least some trash items through the screen structure such that the trash items move along the through path from the inlet end to the outlet end, wherein the rotatable screen unit includes a plurality of external drive paddles that rotate with the screen structure;
wherein the stormwater treatment device includes a normal treatment flow path configured to permit at least some stormwater that enters the tank through the inlet of the tank to flow into the inlet end of the rotatable screen unit and through the screening openings to reach the outlet of the tank;
wherein the stormwater treatment device includes a bypass treatment flow path configured to permit at least some stormwater that enters the tank through the inlet of the tank to bypass the inlet end of the rotatable screen unit and interact with one or more of the external drive paddles to drive rotation of the screen structure before the water moves to the outlet of the tank.