IP Library Granted Patent US 12,624,540
Granted Patent B2
US 12,624,540 · App. 18/167,222 · Granted May 12, 2026

Drainage assembly having an end cap and ramp

Inventors: Bryan Coppes (Old Saybrook, CT); Irena Makarchuk (Fairfield, CT); Dan Swistak (Newmarket, NH); George Ives (Tolland, CT)
Assignee: Advanced Drainage Systems, Inc.
E03F3/04E03F1/003
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Quick Facts
Patent No.
US 12,624,540
App. No.
18/167,222
Granted
May 12, 2026
Kind
B2
Abstract

Stormwater management systems, apparatus, and methods for containing and filtering runoff may be provided. In one implementation, a stormwater chamber may be provided. The stormwater chamber may be configured for use with an endcap for connecting a pipe to the stormwater chamber, and the stormwater chamber may include a first end with a scalloped edge portion. The end cap may include a sleeve with an interior projecting edge, an outward projecting edge, a bore shaped to receive a pipe, a first cutout portion at the upper half of the outward projecting edge of the sleeve, and a second cutout at the bottom half of the interior projecting edge of the sleeve. The stormwater chamber may also include a flared end ramp with an inlet end, an outlet end, and a protrusion on the outside of the inlet end that abuts the flared end ramp with the end cap.

Claims (47)

1 . An end cap for connecting a pipe to a stormwater chamber, the end cap comprising:

a sleeve, the sleeve comprising:

an interior projecting edge;

an outward projecting edge; and

a bore, the bore shaped to receive the pipe;

a first cutout portion at an upper half of the outward projecting edge of the sleeve, wherein the first cutout portion is configured to allow the pipe to be inserted through the first cutout portion into the sleeve from above and set down into a bottom of the sleeve;

a second cutout portion at a bottom half of the interior projecting edge of the sleeve;

an arch surface touching an upper portion of the sleeve; and

two concave flared surfaces adjacent to a lower half of the bore connecting the sleeve to the arch surface.

2 . The end cap of claim 1 , wherein the arch surface includes one or more notches configured to connect to a protrusion in the stormwater chamber.

3 . The end cap of claim 2 , wherein the protrusion snap connects with the one or more notches.

4 . The end cap of claim 1 , wherein the arch surface is configured to connect with a scalloped edge corrugation at a top of one edge of the stormwater chamber.

5 . The end cap of claim 1 , wherein the bore is oval shaped with a dimension along a horizontal axis longer than a dimension along a vertical axis.

6 . The end cap of claim 1 , further comprising reinforcing ribs on one side of the end cap.

7 . The end cap of claim 1 , wherein the sleeve is configured to connect to a flared end ramp at the interior projecting edge.

8 . An apparatus for managing storage and treatment of stormwater, the apparatus comprising:

a stormwater chamber configured for use with an endcap, the stormwater chamber comprising:

a plurality of corrugations having an arched shape,

a first end configured to interface with the endcap, the first end including a scalloped edge portion;

a second end, and

one or more ribs located on an underside of one or more of the corrugations, the one or more ribs configured to secure a pipe inserted into the stormwater chamber;

the end cap for connecting the pipe to the stormwater chamber, the end cap comprising:

a sleeve comprising:

an interior projecting edge;

an outward projecting edge; and

a bore, the bore shaped to receive the pipe;

a first cutout portion at an upper half of the outward projecting edge of the sleeve, wherein the first cutout portion is configured to allow the pipe to be inserted through the first cutout portion into the sleeve from above and set down into a bottom of the sleeve; and

a second cutout at a bottom half of the interior projecting edge of the sleeve; and

the pipe; wherein:

the pipe is connected to the end cap; and

the end cap is inserted into the first end of the stormwater chamber.

9 . The apparatus of claim 8 , further comprising

a flared end ramp comprising:

an inlet end configured to connect to the pipe;

an outlet end configured for placement within the stormwater chamber;

a protrusion on an outside of the inlet end configured to abut the flared end ramp with the end cap; and

an inclined surface extending between the inlet end and the outlet end of the flared end ramp and configured to deliver material from the pipe into the stormwater chamber, wherein

the outlet end of the flared end ramp has a larger width than the inlet end of the flared end ramp such that the inclined surface is angled laterally outward from the inlet end toward the outlet end.

10 . The apparatus of claim 9 , further comprising an indent on an upper side of the inlet end configured to prevent the pipe from sliding towards the outlet end.

11 . The apparatus of claim 10 , wherein the indent protrudes upward from the upper side of the inlet end to a distance that is level with an inside diameter of the pipe.

12 . The apparatus of claim 9 , wherein the inclined surface includes at least one drainage groove extending between the inlet end of the flared end ramp and the outlet end of the flared end ramp, the drainage groove angled laterally outward from the inlet end toward the outlet end.

13 . The apparatus of claim 8 , wherein the end cap further comprises:

an arch surface touching a top of the sleeve; and

two concave flared surfaces adjacent to a lower half of the bore connecting the sleeve to the arch surface.

14 . The apparatus of claim 13 , wherein the arch surface includes one or more notches configured to connect to a protrusion in the stormwater chamber.

15 . The apparatus of claim 13 , wherein the arch surface is configured to interface with the scalloped edge portion of the stormwater chamber.

16 . The apparatus of claim 8 , wherein the bore is oval shaped with a dimension along a horizontal axis longer than a dimension along a vertical axis.

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 Feb 10, 2023
From: COPPES, BRYAN; MAKARCHUK, IRENA; SWISTAK, DAN; IVES, GEORGE
To: ADVANCED DRAINAGE SYSTEMS, INC.
Reel/Frame 062651/0790 →
Continuity (2)
Provisional Application 63309054 · Feb 11, 2022
Related Publication 20230257984A1 · Aug 17, 2023
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