Window Well Drainage System with Segmented Conduits

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Solution Overview

Problem

Basement windows are prone to water infiltration due to clogging and structural damage from expansive soils, which impairs the effectiveness of traditional window well drainage systems in evacuating surface water runoff.

Innovation Solution

A window well drainage system featuring a main drainage conduit with upper and lower ports, a window well screening component, and a drainage conduit screening component, which directs surface water runoff into multiple paths to a foundation drain while preventing debris entry, and includes flexible connections to accommodate soil displacement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a traditional window well drainage system is used, then surface water runoff can be drained to the foundation drain, but the system is prone to clogging and structural damage from expansive soils

Engineering Contradiction:

Improvedrainage effectivenessVSAvoidclogging and structural damage

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The drainage system is divided into multiple independent drainage paths including a primary drainage path and at least one secondary drainage path. This segmentation ensures that if one path becomes clogged or damaged, water can still drain through alternative paths, maintaining drainage effectiveness and reliability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Screening components are introduced as intermediary elements at strategic locations within the drainage system. These screens filter out debris and prevent clogging before water enters the drainage conduits, while flexible connections act as intermediaries that accommodate soil movement without causing structural damage.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 3:

The system incorporates flexible connections that can change their physical parameters (shape, position) in response to soil expansion and contraction. This allows the drainage system to adapt to environmental changes caused by expansive soils without suffering structural damage, maintaining its reliability over time.

Inventive Principle:

Principle #35Parameter changes

2Productivity

If window well area is filled with stones for gravitational drainage, then water can drain to foundation drain, but the area requires maintenance to prevent clogging

Engineering Contradiction:

Improvewater drainage efficiencyVSAvoidmaintenance requirements

Core Design Contradiction:

ProductivityVSEase of operation

Solution Approach 1:

The invention extracts and removes the problematic stone-filled well area from the drainage system design. Instead, it uses enclosed drainage conduits with integrated screening components that actively prevent debris accumulation, eliminating the need for maintenance while maintaining efficient water drainage through controlled flow paths.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The drainage system is designed to be self-maintaining through the inclusion of screening components that automatically filter debris and prevent clogging. The system serves itself by preventing the accumulation of materials that would require manual intervention, ensuring continuous operational efficiency without maintenance.

Inventive Principle:

Principle #25Self-service

3Reliability

If multiple drainage paths are provided, then clogging risks are minimized, but device complexity increases

Engineering Contradiction:

Improvecontinuous water evacuationVSAvoidnumber of drainage conduits

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The drainage system merges multiple drainage functions into an integrated structure where primary and secondary drainage paths are combined within a unified window well assembly. The screening components and flexible connections are shared across all drainage paths, reducing overall complexity while maintaining multiple evacuation routes for continuous water drainage.

Inventive Principle:

Principle #5Merging (Combining)

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

The system efficiently drains surface water runoff to the foundation drain, minimizing clogging risks and structural damage, even with soil expansion, by using spaced screening components and multiple drainage paths to ensure continuous water evacuation.

Implementation Method 1

surface water runoff is drained gravitationally until it reaches the foundation drain

Methodology Applied

Scientific EffectGravitation: Gravitation

Data Source

PatentUS9523179B2Window well drainage system for draining surface water runoff and method for performing the same

Publication Date: 2016.12.20 TION JACQUES QUIRION

AI summary

A window well drainage system and method are provided. According to an aspect, the system comprises a window well base defining a window well cavity having a lowest end, a main drainage conduit opening in the window well cavity, a window well screening component engageable to cover the window well cavity and a drainage conduit screening component engageable to cover the upper port of the main drainage conduit, the window well screening component and the drainage conduit screening component being spaced apart from one another when engaged. According to another aspect, the system further comprises at least one secondary drainage conduit connectable to the main drainage conduit, said at least one secondary drainage conduit extending from the main drainage conduit to the foundation drain when connected to the main drainage conduit.