Downspout Extension Collar for Tool-Free Secure Attachment

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Solution Overview

Problem

Existing downspout extensions face issues with insecure attachment, require tools for installation, are prone to breakage, and lack versatility in fitting various downspout sizes, making them inconvenient and potentially dangerous to install.

Innovation Solution

A downspout extension system comprising a collar member, enclosure member, and extension member that securely attaches to the downspout using mechanical force, allowing for customizable fit and easy installation without tools, and includes a guard to prevent debris entry.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a screw is used to install a downspout extension, then the attachment is secure, but tools are required and the downspout sidewall is prone to stripping

Engineering Contradiction:

Improveattachment securityVSAvoidinstallation convenience

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces the screw-based mechanical fastening system with a friction-fit system using outwardly directed protrusions that engage with inwardly directed protrusions on the downspout extension. This substitution eliminates the need for tools and avoids stripping the downspout sidewall while maintaining secure attachment through friction and geometric interlocking

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The downspout extension is designed to be self-installing through a push-fit mechanism where the outwardly directed protrusions on the mounting bracket automatically engage with corresponding inwardly directed protrusions on the extension, requiring no external tools or assistance for installation

Inventive Principle:

Principle #25Self-service

2Ease of operation

If inwardly directed protrusions are used for friction fit, then installation is tool-free, but the attachment is not secure enough

Engineering Contradiction:

Improveinstallation convenienceVSAvoidattachment security

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent combines multiple attachment mechanisms into a single integrated system: outwardly directed protrusions on the mounting bracket engage with inwardly directed protrusions on the extension, while simultaneously using friction between the mating surfaces and geometric interlocking to create a secure, tool-free attachment that prevents detachment during heavy rainfall

Inventive Principle:

Principle #5Merging (Combining)

3Ease of operation

If a single piece downspout extension is used, then removal is easy, but the extension can fall off with heavy rainfall

Engineering Contradiction:

Improveremoval convenienceVSAvoidattachment security

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent segments the downspout extension system into a mounting bracket with outwardly directed protrusions and an extension with inwardly directed protrusions, creating a multi-point mechanical interlock that provides secure attachment during heavy rainfall while maintaining ease of removal through the same geometric engagement mechanism

Inventive Principle:

Principle #1Segmentation

4Ease of manufacture

If downspout extensions are manufactured in particular sizes, then manufacturing is simplified, but versatility in fitting various downspout sizes is limited

Engineering Contradiction:

Improvemanufacturing simplicityVSAvoidfitting versatility

Core Design Contradiction:

Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The mounting bracket is designed with outwardly directed protrusions that can engage with inwardly directed protrusions of various sizes and configurations on different downspout extensions, creating a universal attachment system that accommodates multiple downspout sizes without requiring different bracket designs

Inventive Principle:

Principle #6Universality (Multi-functionality)

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

Provides a stable, durable, and versatile attachment that prevents debris entry while ensuring efficient water dispersion, overcoming the limitations of existing designs.

Implementation Method 1

The collar member and the enclosure member can be configured to cooperate and receive the terminal end of the downspout and securely hold the terminal end between the collar member and the enclosure member with mechanical force

Methodology Applied

Scientific EffectMechanical force: Mechanical Force

Data Source

PatentUS12454827B2Downspout extension system, kit, and method

Publication Date: 2025.10.28 GRAYSON TODD

AI summary

A downspout extension system for a terminal end of a downspout is provided. The downspout extension system can include a collar member, an enclosure member, and an extension member. The collar member can include a first end being open and a second end being closed. The collar member can include a first tab disposed directly across from a second tab. The enclosure member can be selectively slidably disposed in the first end of the collar member. The extension member can be disposed on the collar member. The extension member can include a first aperture configured to receive the first tab and a second aperture configured to receive the second tab. The collar member and the enclosure member can together be configured to receive the terminal end of the downspout and to securely hold the terminal end between the collar member and the enclosure member with mechanical force.