Sewer Cleanout Sensor Cap for Backup Detection Without Spillage
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Solution Overview
Problem
Existing sewer cleanout caps do not provide a reliable way to inform homeowners about sewer backups and are risky to remove, potentially causing spillage.
Innovation Solution
A wastewater sensor cap with electrodes and electronic signaling that detects sewer backup and alerts homeowners via wireless signals, featuring a valve for controlled drainage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the cap is removed to check for sewer backup, then the clog location can be determined, but sewer spillage inside or outside the house may occur
Solution Approach 1:
The patent introduces an intermediary sensing system consisting of electrodes and a control unit that mediates between the sewer backup condition and the homeowner. Instead of direct visual inspection requiring cap removal, the electrodes detect sewer presence in the cleanout port and transmit this information wirelessly, eliminating the need for direct human exposure to sewer contents while still enabling clog location identification.
2Reliability
If a sensing system is added to detect sewer backup, then safe detection is achieved, but device complexity increases
Solution Approach 1:
The patent implements self-service by allowing the sensor cap to autonomously detect sewer backup conditions through electrodes and transmit alerts wirelessly without requiring homeowner intervention or cap removal. The system automatically monitors the cleanout port state and notifies occupants via wireless communication, eliminating the need for complex manual inspection procedures while maintaining structural simplicity.
3Object-affected harmful factors
If the cleanout port is sealed to prevent spillage, then safety is improved, but the ability to drain sewer is reduced
Solution Approach 1:
The patent applies dynamics by providing a controllable valve mechanism within the sensor cap that can transition between closed and open states. The valve remains closed during normal operation to prevent spillage and maintain safety, but can be opened when drainage is needed, allowing controlled sewer discharge. This dynamic control enables the system to adapt between safety mode and drainage mode as required.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Provides a safe and efficient method to detect sewer backups and allow controlled drainage, reducing the risk of spillage and enabling timely clog identification.
Implementation Method 1
When a clog is formed downstream from the cleanout port, however, the fill area and the void space fill with sewer and contact tips of the electrodes
Data Source
AI summary
A wastewater sensor cap that selectively attaches to a standard sewer cleanout port assembled in a house's sewer line. The sensor cap includes a cap body with external threads that connect to internal threads formed inside the cleanout port. Formed or attached to the cap body is a nut body, which enables the cap body to be securely tightened to the cleanout port with a wrench. Attached to the cap body are two electrodes that extend through the cap body and into the void space formed in the cap that communities with a fill area in the cleanout port. Attached to each electrode are wires from an electronic signal device that create an alarm signal when a ground fault occurs caused by sewer contacting the tips of the electrodes extending into the void space. The signal device may include a wireless communication transmitter that sends a wireless signal to a remote wireless communication receiver configured to receive the wireless signal from the signal device.