Caulkless Compression Seal for Prefabricated Shower Enclosures

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Solution Overview

Problem

Prefabricated shower panel systems often experience water leakage due to ineffective sealing at joints, which depends on the skill of the installer and the quality of the sealing material used.

Innovation Solution

A water management device featuring a compliant member that forms a seal with the base and side panels, redirecting water inward to prevent leakage, utilizing a design where the compliant member is positioned between rigid members and extends below their bottom ends to engage with the base and side panels, ensuring a caulkless seal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If caulk or curable liquid sealant is applied to seal between panels and base, then water leakage is prevented, but the effectiveness and longevity depend on installer skill and material quality

Engineering Contradiction:
Improveseal effectivenessVSAvoidinstaller skill dependency
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The compression seal member is designed to automatically form a water-tight seal through the mechanical compression of resilient material between the panel flange and base flange, eliminating the need for installer-applied caulk or sealant. The seal member's resilient nature allows it to self-adjust and maintain the seal without requiring installer skill for proper application.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The invention extracts and eliminates the caulk or curable liquid sealant from the sealing process, replacing it with a pre-installed compression seal member that provides sealing through mechanical compression alone, thereby removing the dependency on installer skill and material quality variables.

Inventive Principle:
Principle #2Taking out (Extraction)

2Reliability

If caulk is applied to form a seal between panels and base, then water leakage is prevented, but repeatability of achieving the seal is compromised

Engineering Contradiction:
Improveseal consistencyVSAvoidseal repeatability
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The compression seal member consistently forms a water-tight seal through its resilient material properties and compression mechanism, providing repeatable sealing performance that is not subject to variations in installer technique or material application quality.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The invention changes the sealing mechanism from chemical curing (caulk) to mechanical compression (resilient material), where the seal consistency is determined by controlled physical parameters such as compression force and resilient material properties, which are more easily standardized and reproduced.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If a compliant member extends beyond the rigid members to engage the base and panel, then water sealing is improved, but the device complexity increases

Engineering Contradiction:
Improvewater sealingVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The compression seal member utilizes a resilient (flexible) material that extends beyond the rigid members to engage both the panel flange and base flange, creating a water-tight seal through its flexibility and ability to deform under compression, thereby improving sealing without requiring complex mechanical structures.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The compression seal member acts as an intermediary element between the rigid panel structure and the base, providing the sealing function through its resilient material properties while simplifying the overall structure by eliminating the need for complex gasket systems or multiple sealing components.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Effectively prevents water from leaking over the sides of the shower enclosure by forming a reliable seal, independent of installer skill and material quality, ensuring a durable and repeatable water management solution.

Implementation Method 1

The compliant member has a length and a width, the length being greater than the width. The compliant member is coupled to a first of the one or more wall panels proximate the entrance. The compliant member forms a seal with the first flange, the length of the compliant member extending outward relative to the interior of the enclosure.

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS11058259B2Caulkless seal
Publication Date: 2021.07.13 KOHLER CO(US)
  • US11058259B2 patent drawing
  • US11058259B2 patent drawing
  • US11058259B2 patent drawing

AI summary

A method of sealing a bathing enclosure includes engaging a first side of a compliant member with a first member, engaging an opposing second side of the compliant member with a second member, and inserting the first and second members with the compliant member into a receptacle projecting from a side panel of a bathing enclosure.