Bathing Wall Snap-Fit Coupler to Eliminate Caulk and Bacteria

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Solution Overview

Problem

Current thermoformed bathing wall systems require caulk or sealant for watertight seams, which can darken, fray, collect bacteria, and fail to sustain high water pressures, necessitating frequent maintenance and not providing a long-term solution.

Innovation Solution

A bathing wall system with a snap-fit mechanism using U-shaped channels and grooved connectors on the back and end walls, eliminating the need for caulk or sealants by creating a watertight seal through a snap-fit configuration that allows water to drain effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If caulk or sealant is used between adjacent walls, then watertight seams are created, but the sealant darkens, frays, collects bacteria, and requires frequent maintenance

Engineering Contradiction:
Improvewatertight sealVSAvoidmaintenance-free operation
Core Design Contradiction:
ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The patent removes the sealant/caulk component entirely from the system by using a mechanical snap-fit connection with integrated water channels. The U-shaped channel and protrusion design creates a watertight seal through mechanical interlocking and gravity-driven water flow, eliminating the need for chemical sealants that require maintenance.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system uses gravity-driven water flow through integrated channels to self-seal and self-drain. Water that enters the joint between walls flows through the U-shaped channel and protrusion interface, using its own weight and pressure to maintain the seal and drain away, requiring no external maintenance or replacement of sealing materials.

Inventive Principle:
Principle #25Self-service

2Reliability

If caulk or sealant is used to create watertight seams, then water sealing is achieved, but the sealant cannot sustain high water pressures

Engineering Contradiction:
Improvewatertight sealVSAvoidwater pressure resistance
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The patent replaces chemical sealants with a mechanical snap-fit system featuring U-shaped channels and protrusions. This mechanical connection provides structural strength to withstand high water pressures, while the geometry of the channel and protrusion creates a watertight seal through physical interlocking rather than adhesive bonding.

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

Solution Approach 2:

The system incorporates hydraulic principles by designing the U-shaped channel and protrusion interface to channel water flow through the joint. The geometry of the water channel directs water flow to use hydraulic pressure to maintain the seal and force water through the drainage path, converting water pressure from a potential weakness into a sealing mechanism.

Inventive Principle:
Principle #29Pneumatics and hydraulics

3Ease of manufacture

If traditional bathing wall systems are used with sealant, then installation is straightforward, but the system requires frequent maintenance and replacement

Engineering Contradiction:
Improveinstallation simplicityVSAvoidmaintenance time
Core Design Contradiction:
Ease of manufactureVSLoss of time

Solution Approach 1:

The patent divides the wall system into modular panels with integrated U-shaped channels and protrusions. Each panel is manufactured independently with these features built-in, allowing for simple snap-fit assembly without requiring on-site application of sealants. The segmented design with standardized interfaces simplifies both installation and future replacement if needed.

Inventive Principle:
Principle #1Segmentation

4Reliability

If caulk or sealant is applied at seams, then water sealing is achieved, but bacteria collection and darkening occur over time

Engineering Contradiction:
Improvewatertight sealVSAvoidbacteria collection
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent removes the organic sealant material that serves as a food source for bacteria. By using a mechanical snap-fit system with smooth, non-porous surfaces and integrated drainage channels, the design eliminates the nutrient-rich environment that sealants provide, preventing bacterial growth and associated hygiene problems.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The U-shaped channel and protrusion design creates a hydraulic flow path that continuously moves water through the joint interface. This constant water flow prevents stagnant water accumulation, reduces the opportunity for bacterial growth, and uses the water's own movement to keep the sealing interface clean and functional.

Inventive Principle:
Principle #29Pneumatics and hydraulics

Data Source

PatentUS11700974B2Bathing wall system
Publication Date: 2023.07.18 DELTA FAUCET COMPANY
  • US11700974B2 patent drawing
  • US11700974B2 patent drawing
  • US11700974B2 patent drawing

AI summary

A bathing wall system including a back wall, an end wall, and a coupler connecting the back wall and the end wall. The coupler includes a U-shaped receiving slot supported by the back wall, and a male connector supported by the end wall and received within the U-shaped receiving slot.