Customized Flasher Adapter Membrane for In-Floor Drain Sealing

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Solution Overview

Problem

In-floor drain constructions face challenges due to inaccurate placement of underground plumbing and difficulties in controlling the thickness and height of poured-cement floors, leading to issues with waterproof membrane deformation, leaks, and poor water flow, as existing solutions lack effective adjustability and durability in membrane systems.

Innovation Solution

A method involving customized floor drain flasher adapter membranes with specific vertical dimensions, allowing for accurate measurement and selection of membranes to match site-specific requirements, preventing unnatural deformation and ensuring a watertight, durable installation by connecting the membrane to the in-floor drain without stretching or puckering.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If standard waterproof membranes are used with fixed dimensions, then manufacturing and inventory management are simplified, but the membranes cannot adapt to varying vertical distances in different construction sites, leading to deformation and leak problems

Engineering Contradiction:
Improveadaptability to site-specific vertical dimensionsVSAvoidcomplexity of membrane customization process
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The waterproofing system is segmented into a standard waterproof membrane and a separate adjustable flasher adapter membrane. The adapter membrane is customized based on measured vertical distances from the drain pipe to the floor surface, allowing each component to be optimized independently while maintaining overall system adaptability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The vertical dimension parameter of the flasher adapter membrane is changed to match specific site measurements. By adjusting this critical dimension parameter, the membrane properly bridges the varying gaps between drain pipe and floor surface, preventing deformation and ensuring proper water flow without requiring complete redesign of the entire waterproofing system.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If construction workers deform the flexible waterproof membrane to accommodate drainage requirements, then water flow is improved, but the membrane becomes stressed, puckered, or cracked, compromising durability and sealing

Engineering Contradiction:
Improveease of membrane installation and adaptationVSAvoiddurability and sealing integrity of the membrane
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The flasher adapter membrane acts as an intermediary component between the standard waterproof membrane and the drain pipe assembly. It is specifically designed with dimensions that accommodate the vertical distance without requiring deformation of the main waterproof membrane, thereby maintaining membrane integrity while enabling proper drainage.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The vertical distance from the drain pipe to the floor surface is measured and recorded before installation. This preliminary measurement allows the flasher adapter membrane to be pre-configured with the correct dimensions, eliminating the need for on-site deformation and ensuring the membrane is installed in its proper, unstressed state.

Inventive Principle:
Principle #10Preliminary action

3Productivity

If the drain pipe is placed lower than specified to ensure proper water flow, then gravity flow is improved, but the gap between the floor and drain increases, making it difficult to connect standard drain components

Engineering Contradiction:
Improveefficiency of water drainageVSAvoidprecision of vertical dimension control
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The vertical dimension parameter of the flasher adapter membrane is adjusted to compensate for the reduced gap caused by lowering the drain pipe. By changing this parameter to match actual site conditions, the system maintains proper drainage efficiency while accommodating the increased gap between floor and drain.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The flasher adapter membrane provides dynamic adjustment capability to accommodate variations in vertical dimension. Rather than requiring fixed precision in drain pipe placement, the adaptable membrane can be configured to match actual site measurements, allowing the system to adapt to different installation conditions while maintaining functionality.

Inventive Principle:
Principle #15Dynamics

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

This approach ensures a leak-free, long-lasting in-floor drain installation by minimizing membrane stress and deformation, adapting to site-specific dimensions for optimal water flow and sealing, addressing the limitations of standard components and pre-manufactured membranes.

Implementation Method 1

to assure that water does not flow by capillary action into an area outside the floor drain

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Implementation Method 2

Because drains require water to flow by gravity

Methodology Applied
Scientific EffectGravity: Gravitation

Data Source

PatentUS7632401B2Floor system using customized drain flasher adapter membranes
Publication Date: 2009.12.15 THE NOBLE CO
  • US7632401B2 patent drawing
  • US7632401B2 patent drawing
  • US7632401B2 patent drawing

AI summary

A floor system includes a clamping ring drain assembly for funneling water to an opening of in-floor drain plumbing. The drain assembly includes clamping rings and a cover for the input opening. A waterproof membrane has marginal material defining a hole, with the marginal material being located outboard of the upper clamping ring. A customized floor drain flasher adapter membrane has an outer first ring bonded to the marginal material of the waterproof membrane, creating a double thick ring outboard of the clamping rings. The adapter membrane further includes a ring of transition material sloping to the clamping rings. The adapter membrane has a preformed shape selected to match a vertical dimension at the construction site, so that the adapter membrane is not bent, stretched, folded or wrinkled during construction/installation, hence preventing water leaks, puckering of the membrane, and membrane cracking.