Shower Drain Sealing Ring Assembly for Pressure Leak Testing

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Solution Overview

Problem

Existing shower drain assemblies face issues with incomplete sealing tests, particularly in areas not currently tested, leading to potential leaks, unsightly appearances, and health risks associated with caulking, which may also be temporary.

Innovation Solution

The proposed shower drain assembly includes a retaining ring and a sealing ring assembly with a test membrane, O-rings, and grooves to facilitate comprehensive fluid pressure testing, eliminating the need for caulking and ensuring thorough sealing verification.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional drain assembly installation methods are used, then installation is simpler, but sealing reliability is insufficient due to incomplete sealing tests

Engineering Contradiction:
Improvesealing reliabilityVSAvoidassembly complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent incorporates a test membrane and pressure testing mechanism into the drain assembly before final installation. The sealing ring is tested for proper sealing engagement with the shower pan flange through fluid pressure testing, ensuring sealing reliability is verified in advance before the assembly is permanently installed, thus resolving the contradiction between reliability and complexity.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent introduces a test membrane as an intermediary component that allows non-destructive pressure testing of the sealing ring without requiring actual water flow or disassembly. This intermediary testing mechanism enables verification of sealing reliability while maintaining assembly integrity, addressing the contradiction between ensuring reliable seals and avoiding excessive assembly complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Shape

If caulking is used to seal gaps, then appearance is improved, but health risks and temporary nature of solution worsen

Engineering Contradiction:
Improveaesthetic appearanceVSAvoidhealth risks from caulking
Core Design Contradiction:
ShapeVSObject-affected harmful factors

Solution Approach 1:

The patent removes the need for caulking entirely by designing a sealing ring that creates a mechanical seal between the drain assembly flange and the shower pan flange. The sealing ring engages with grooves and ledges to form a secure seal without requiring any caulking materials, thus eliminating the health risks and temporary nature associated with caulking while maintaining aesthetic appearance.

Inventive Principle:
Principle #2Taking out (Extraction)

3Reliability

If comprehensive sealing testing is performed, then leak prevention is improved, but testing time and complexity worsen

Engineering Contradiction:
Improveleak preventionVSAvoidtesting time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent performs sealing verification as a preliminary step during the installation process itself, rather than as a separate post-installation testing phase. The test membrane is installed and pressure testing is conducted before the final aesthetic components are attached, allowing comprehensive leak prevention verification to be completed in advance, thus improving reliability without significantly increasing total installation time.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS20250369214A1Shower drain assemblies
Publication Date: 2025.12.04 WCM IND INC
  • US20250369214A1 patent drawing
  • US20250369214A1 patent drawing
  • US20250369214A1 patent drawing

AI summary

Shower drain assemblies and their components are disclosed. In some examples, a shower drain assembly may include a shower drain, a retaining ring, a sealing ring assembly, or a combination thereof. The retaining ring may fit inside the shower drain, and the sealing ring assembly may fit inside the shower drain and on top of the retaining ring. In some other examples, a shower drain assembly may include a shower drain, a gasket, a compression ring assembly, or a combination thereof. The gasket may fit inside the shower drain, and the compression ring assembly may fit inside the shower drain and on top of the gasket. The shower drain assemblies may allow for fluid pressure testing of shower drain and pipe assemblies. The shower drain assembly may allow for fluid pressure testing of areas not previously tested or a lack of a need for caulking, among other improvements.