IP Library Granted Patent US 12,492,130
Granted Patent B2
US 12,492,130 · App. 18/302,876 · Granted Dec 9, 2025

Systems and methods for stormwater management

Inventors: Daniel J. Figola (Powell, OH); Bo Liu (Clarksburg, MD); Erik K. Hartwell (Mount Airy, MD)
Assignee: Advanced Drainage Systems, Inc.
C02F1/004B01D24/00B01D24/04B01D24/167B01D24/40B01D24/42B01D29/56B01D39/08C02F3/046C02F3/327E03F5/14B01D2101/04C02F2103/001
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Quick Facts
Patent No.
US 12,492,130
App. No.
18/302,876
Granted
Dec 9, 2025
Kind
B2
Abstract

A fluid management system can include a first chamber, a diffusion plate positioned in the first chamber configured to receive fluid and to direct the fluid along a bypass fluid flow path or a primary fluid flow path, a riser pipe positioned within the first chamber that conveys fluid from the diffusion plate into a second chamber, and a filtering apparatus positioned in the second chamber. The filtering apparatus can include a plate having a first opening, one or more modules coupled to the plate having one or more perforations and a second opening corresponding to the first opening, and filter media disposed adjacent to the one or more modules, and a slab positioned above the filtering apparatus.

Claims (28)

1 . A fluid management system, comprising:

a first chamber;

a diffusion plate positioned in the first chamber configured to receive fluid and to direct the fluid along a bypass fluid flow path or a primary fluid flow path;

a riser pipe positioned within the first chamber that conveys fluid from the diffusion plate into a second chamber,

a filtering apparatus positioned in the second chamber comprising:

a plate having a first opening;

one or more modules coupled to the plate having one or more perforations and a second opening corresponding to the first opening; and

filter media disposed adjacent to the one or more modules; and

a slab positioned above the filtering apparatus.

2 . The fluid management system of claim 1 , wherein the slab includes a service hole, and the slab is positioned outside a pathway of fluid flowing from the first chamber to the second chamber.

3 . The fluid management system of claim 1 , wherein a first module of the one or more modules is configured to decouple from the plate.

4 . The fluid management system of claim 3 , wherein a second module different from the one or more modules is configured to couple to the plate in a position associated with the first module after a decoupling of the first module.

5 . The fluid management system of claim 1 , wherein the filtering apparatus includes a brace to mitigate bulging.

6 . The fluid management system of claim 1 , wherein the filtering apparatus comprises a fabric wrap disposed around at least a portion of the module.

7 . The fluid management system of claim 1 , wherein the filtering media comprises sand, perlite, activated alumina, or a combination thereof.

8 . The fluid management system of claim 1 , further comprising a separator membrane disposed below the plate.

9 . The fluid management system of claim 8 , further comprising the filter media disposed between the separator membrane and the plate.

10 . The fluid management system of claim 1 , wherein the diffusion plate comprises a surface having one or more perforations.

11 . The fluid management system of claim 1 , further comprising a bypass pipe configured to receive at least a portion of fluid and an outlet coupled to the bypass pipe.

12 . The fluid management system of claim 11 , further comprising a first outlet along the primary fluid flow path and a second outlet along the bypass fluid flow path.

13 . The fluid management system of claim 12 , wherein the at least a first portion of the fluid exits through the first outlet, and the at least a second portion of the fluid exits through the second outlet.

14 . The fluid management system of claim 1 , further comprising a third chamber, wherein fluid flows along the primary fluid flow path through an inlet between the second chamber and the third chamber.

15 . The fluid management system of claim 14 , further comprising one or more delivery pipes connected to the inlet and positioned along a base of the third chamber.

16 . The fluid management system of claim 15 , further comprising one or more riser pipes extending vertically in the chamber, the one or more riser pipes having a perforated section vertically displaced from the base of the chamber.

17 . The fluid management system of claim 16 , wherein the one or more riser pipes comprise a fabric wrap disposed around at least a portion of the one or more riser pipes.

18 . The fluid management system of claim 17 , further comprising filter media disposed between the base of the third chamber and the perforated section of the one or more riser pipes.

19 . The fluid management system of claim 8 , wherein the separator membrane comprises slotted openings to allow passage of the primary fluid flow.

20 . The fluid management system of claim 8 , wherein the separator membrane comprises peaks and valleys to form a corrugated surface.

Assignments (2)
SECURITY INTEREST Recorded Mar 2, 2026
From: ADVANCED DRAINAGE SYSTEMS, INC.
To: PNC BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT
Reel/Frame 074990/0789 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 19, 2023
From: FIGOLA, DANIEL; LIU, BO; HARTWELL, ERIK
To: ADVANCED DRAINAGE SYSTEMS, INC.
Reel/Frame 063370/0420 →
Continuity (6)
Continuation In Part 17663844 · May 18, 2022
Continuation 16952734 · Nov 19, 2020
Continuation 16837010 · Apr 1, 2020
Provisional Application 62992820 · Mar 20, 2020
Provisional Application 62935620 · Nov 14, 2019
Related Publication 20230264977A1 · Aug 24, 2023
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