IP Library Granted Patent US 12,454,821
Granted Patent B2
US 12,454,821 · App. 18/362,090 · Granted Oct 28, 2025

Systems and methods for backflow management

Inventors: Andrew Mulvaney (Ridgefield, CT); Joseph Mulvaney (Ridgefield, CT)
Assignee: 900 Ethan Allen Hwy LLC
E03F7/04E03C1/1222E03F5/107E03F5/18F16K37/005
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Quick Facts
Patent No.
US 12,454,821
App. No.
18/362,090
Granted
Oct 28, 2025
Kind
B2
Abstract

Systems, methods, and articles of manufacture for automatic backflow identification, detection, remediation, and/or management. In some embodiments, a backflow management device may comprise a threaded and electronically-enabled plug installed in a non-pressurized pipe system cleanout, branch, or stub.

Claims (34)

1. An automatic backflow management system, comprising:

a backflow management device comprising:

a housing comprising threads and defining an interior volume, the threads being engaged with corresponding threads of a non-pressurized fluid conduit;

a cover coupled to seal the interior volume, the cover comprising a bore; and

an electronic processing device disposed within the interior volume;

a fluid sensor disposed within the interior volume, in communication with the electronic processing device, and oriented to detect fluid properties through the bore;

a wireless communication device disposed within the interior volume and in communication with the electronic processing device; and

a memory device storing instructions that when executed by the electronic processing device result in:

receiving data descriptive of a fluid property of a fluid in the non-pressurized fluid conduit;

identifying, by the electronic processing device and by a comparison of the data to stored rules, an occurrence of a backflow event; and

automatically transmitting, by the wireless communication device, an alert descriptive of the identified backflow event occurrence.

2. The automatic backflow management system of claim 1 , wherein the instructions, when executed, further result in:

automatically transmitting, by the wireless communication device and in response to the identifying of the backflow event, a shutoff command to a fluid inlet device.

3. The automatic backflow management system of claim 1 , further comprising:

the fluid inlet device.

4. The automatic backflow management system of claim 1 , wherein the housing further comprises a raised nub defining a plurality of sides extending axially from the housing.

5. The automatic backflow management system of claim 1 , wherein the non-pressurized fluid conduit comprises a section of at least one of a sanitary and a sewer effluent system.

6. The automatic backflow management system of claim 1 , wherein the fluid comprises sewage.

7. The automatic backflow management system of claim 1 , wherein the fluid property of the fluid comprises a distance of a surface of the fluid from the fluid sensor.

8. The automatic backflow management system of claim 1 , wherein the fluid property of the fluid comprises a pressure exerted by the fluid.

9. The automatic backflow management system of claim 8 , wherein the fluid property of the fluid comprises a measurement of an amount of the pressure exerted by the fluid.

10. An automatic backflow management method, comprising:

receiving, (i) by an electronic processing device disposed within an interior volume of a housing of a backflow management device, the housing of the backflow management device comprising exterior threads that are engaged to couple the housing of the backflow management device with corresponding threads of a non-pressurized fluid conduit, and the backflow management device comprising a cover coupled to seal the interior volume, and wherein the cover comprises a bore, and (ii) from a fluid sensor disposed within the interior volume, the fluid sensor being in in communication with the electronic processing device and being oriented to detect fluid properties through the bore, (iii) data descriptive of a fluid property of a fluid in the non-pressurized fluid conduit;

identifying, by an execution of instructions by the electronic processing device, the instructions being stored on a memory device disposed within the interior volume and in communication with the electronic processing device, and by a comparison of the data to stored rules, an occurrence of a backflow event; and

automatically transmitting, by a wireless communication device disposed within the interior volume and in communication with the electronic processing device, an alert descriptive of the identified backflow event occurrence.

11. The automatic backflow management method of claim 10 , further comprising:

automatically transmitting, by the wireless communication device and in response to the identifying of the backflow event, a shutoff command to a fluid inlet device.

12. The automatic backflow management method of claim 11 , wherein the fluid inlet device comprises a valve that controls a pressurized fluid distribution system.

13. The automatic backflow management method of claim 10 , wherein the housing further comprises a raised nub defining a plurality of sides extending axially from the housing.

14. The automatic backflow management method of claim 10 , wherein the non-pressurized fluid conduit comprises a section of at least one of a sanitary and a sewer effluent system.

15. The automatic backflow management method of claim 10 , wherein the fluid comprises sewage.

16. The automatic backflow management method of claim 10 , wherein the fluid property of the fluid comprises a distance of a surface of the fluid from the fluid sensor.

17. The automatic backflow management method of claim 10 , wherein the fluid property of the fluid comprises a pressure exerted by the fluid.

18. The automatic backflow management system of claim 17 , wherein the fluid property of the fluid comprises a measurement of an amount of the pressure exerted by the fluid.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 26, 2024
From: MULVANEY, ANDREW; MULVANEY, JOSEPH
To: 900 ETHAN ALLEN HWY LLC
Reel/Frame 066555/0503 →
Continuity (3)
Continuation PCTUS2022014457 · Jan 29, 2022
Provisional Application 63143153 · Jan 29, 2021
Related Publication 20230374768A1 · Nov 23, 2023
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