IP Library Granted Patent US 12698633
Granted Patent B2
US 12698633 · App. 18/137,588 · Granted Aug 4, 2026

Sump drain apparatus, system, and method of construction

Inventor: David Leslie (Roanoke, TX)
Assignee: JMH Innovative Solutions, Inc.
E04D13/0481E04D13/0409E04D13/1606E04D2013/0413
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Quick Facts
Patent No.
US 12698633
App. No.
18/137,588
Granted
Aug 4, 2026
Kind
B2
Abstract

The present disclosure provides a sump drain apparatus comprising a drain inlet and a ramp coupled to the drain inlet comprising an incline plane configured to divert drainage water toward the drain bowl, wherein at least a portion of the ramp is configured to be positioned on top of a roof deck.

Claims (25)

1 . A sump drain system, comprising:

a drain inlet;

a ramp coupled to the drain inlet, wherein the ramp comprises an incline plane configured to divert drainage water toward the drain inlet, and wherein at least a portion of the ramp is configured to be disposed above a roof deck;

an insulation receiving surface coupled to and extending downward from the ramp, wherein the ramp and the insulation receiving surface are configured to at least partially enclose sump insulation beneath the ramp; and

a scupper system coupled to the ramp, wherein the scupper system comprises a scupper flare protruding upwardly from the ramp and a scupper channel defining a scupper passageway disposed through the scupper flare.

2 . The sump drain system of claim 1 , wherein the scupper passageway is disposed a height above the drain inlet and is configured to drain overflow water.

3 . The sump drain system of claim 1 , wherein the drain inlet, the ramp, and the scupper system comprise a monolithic structure.

4 . The sump drain system of claim 1 , wherein the ramp spans between a ramp lower point and a ramp upper point, wherein the ramp lower point is configured to be positioned above the roof deck.

5 . The sump drain system of claim 1 , wherein the ramp is coupled to the drain inlet by a first land coupled to and spanning between the drain inlet and the ramp.

6 . A sump drain system, comprising:

a drain inlet comprising an inlet conduit; and

a ramp coupled to the drain inlet, wherein the ramp comprises an incline plane configured to divert drainage water toward the drain inlet, and wherein at least a portion of the ramp is configured to be disposed above a roof deck; and

an outlet pipe fixedly coupled to the inlet conduit, wherein the outlet pipe is disposed at least partially within the inlet conduit, and wherein the outlet pipe comprises a metallic material and an outer coating comprising a thermoplastic olefin.

7 . The sump drain system of claim 6 , wherein at least a portion of the outlet pipe is exposed below the inlet conduit.

8 . The sump drain system of claim 6 , wherein the inlet conduit is vacuum formed to the outlet pipe.

9 . The sump drain system of claim 8 , wherein the outlet pipe is welded to the inlet conduit.

10 . The sump drain system of claim 9 , wherein the outer coating of the outlet pipe comprises the same material as the inlet conduit.

11 . The sump drain system of claim 6 , further comprising an insulation receiving surface coupled to and extending downward from the ramp, wherein the ramp and the insulation receiving surface are configured to at least partially enclose sump insulation beneath the ramp and above the roof deck.

12 . A method of forming a sump drain system, comprising:

forming a drain inlet and a ramp coupled to the drain inlet, wherein the ramp comprises an incline plane configured to divert drainage water toward the drain inlet, wherein at least a portion of the ramp is configured to be disposed above a roof deck, and wherein the drain inlet comprises an inlet conduit; and

fixedly coupling an outlet pipe to the inlet conduit, wherein the fixedly coupling comprises inserting the outlet pipe into the inlet conduit and vacuum forming the inlet conduit to the outlet pipe.

13 . The method of claim 12 , wherein the fixedly coupling the outlet pipe to the inlet conduit further comprises welding an outer surface of the outlet pipe to an inner surface of the inlet conduit.

14 . The method of claim 13 , wherein the outlet pipe comprises a metallic material and a thermoplastic olefin (TPO) coating, wherein the welding occurs between the TPO coating and the inlet conduit.

15 . The method of claim 12 , wherein, in response to the fixedly coupling the outlet pipe to the inlet conduit, at least a portion of the outlet pipe is exposed below the inlet conduit.

16 . The method of claim 12 , wherein the drain inlet and the ramp comprise a single, continuous structure.