Sensor Cleanout Plug for Early Sewer Backflow Detection

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Solution Overview

Problem

Non-pressurized fluid flow systems, such as sewage and drainage systems, lack in-conduit measurement devices, leading to undetected backup events that can cause significant damage and remedial expenses due to flooding.

Innovation Solution

Installation of a backflow management device equipped with electronic sensors in non-pressurized fluid flow cleanouts that monitor fluid levels and communicate wirelessly to a networked processing device for alerting and automatic fluid inflow prevention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If backflow prevention devices are installed in non-pressurized conduits, then backflow can be prevented, but the device complexity increases and may not be effective without pressurization

Engineering Contradiction:
Improvebackflow prevention effectivenessVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces mechanical backflow prevention devices with electronic sensing and control systems. Sensors detect fluid backup conditions and trigger alerts or automated responses, eliminating the need for complex mechanical one-way valves in non-pressurized systems where they would be ineffective.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Loss of time

If in-conduit measurement devices are installed, then backflow events can be detected early, but the device complexity and installation difficulty increase

Engineering Contradiction:
Improvedetection timeVSAvoiddevice complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The system enables self-monitoring of backflow conditions through automated sensors that detect fluid levels and trigger alerts without requiring manual inspection. The cleanout plugs incorporate sensors that automatically monitor for backups and communicate status, eliminating the need for manual detection methods.

Inventive Principle:
Principle #25Self-service

3Device complexity

If manual observation methods are used to detect backflow, then the system remains simple, but backflow events go undetected until significant damage occurs

Engineering Contradiction:
Improvesystem simplicityVSAvoiddetection reliability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent implements automated feedback systems where sensors continuously monitor cleanout conditions and provide real-time alerts when backups are detected. This feedback loop enables immediate detection and response to backflow events, preventing the delayed detection that occurs with manual observation methods.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS20260035901A1Systems and methods for backflow management
Publication Date: 2026.02.05 900 ETHAN ALLEN HWY LLC
  • US20260035901A1 patent drawing
  • US20260035901A1 patent drawing
  • US20260035901A1 patent drawing

AI summary

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