Gutter Shield with Micromesh Filter and Self-Cleaning Flow Channels

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Solution Overview

Problem

Existing gutter protection systems fail to prevent debris from entering rain gutters, leading to clogging and impaired water drainage, with issues such as filter mediums becoming ineffective due to clogging, manual cleaning requirements, and cosmetic concerns like pine needles accumulation.

Innovation Solution

A gutter shield device with a stainless steel or aluminum micromesh filter cloth integrated into a main body with recessed and perforated wells, featuring upward extending planes to direct water flow and prevent debris entry, while being accessible and easily replaceable.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a filter medium is inserted into the gutter protection system, then debris is prevented from entering the gutter, but the filter medium becomes clogged and requires manual cleaning

Engineering Contradiction:
Improvedebris entry preventionVSAvoidmanual cleaning requirement
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The system enables self-cleaning through water flow. Debris that accumulates on the filter medium is automatically washed away by rainwater or irrigation water flowing through the system, eliminating the need for manual cleaning operations

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system allows for easy removal and replacement of the filter medium when necessary. The filter can be quickly discarded after clogging and replaced with a fresh one, minimizing maintenance downtime and effort

Inventive Principle:
Principle #34Discarding and recovering

2Stability of the object's composition

If a rigid main body with recessed wells is used, then structural stability is improved, but installation becomes difficult in cold weather

Engineering Contradiction:
Improvestructural stabilityVSAvoidinstallation difficulty
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The system is divided into separate modular components: a rigid main body providing structural stability and a flexible filter medium that can be independently handled. This segmentation allows the rigid portion to maintain stability while the flexible portion enables easy installation even in cold weather conditions

Inventive Principle:
Principle #1Segmentation

3Object-affected harmful factors

If an insertable flexible polymer support skeleton is used, then filter effectiveness is improved, but the system expands and contracts at different rates causing cosmetic issues

Engineering Contradiction:
Improvefiltration effectivenessVSAvoiddimensional stability
Core Design Contradiction:
Object-affected harmful factorsVSStability of the object's composition

Solution Approach 1:

A transition layer or interface structure is introduced between the flexible filter medium and the rigid main body. This intermediary accommodates the differential thermal expansion and contraction, preventing cosmetic defects while maintaining the filtration effectiveness of the flexible medium

Inventive Principle:
Principle #24Intermediary (Mediator)

4Object-affected harmful factors

If a fine micromesh filter cloth is used, then debris prevention is enhanced, but water flow resistance increases

Engineering Contradiction:
Improvedebris blocking capabilityVSAvoidwater drainage efficiency
Core Design Contradiction:
Object-affected harmful factorsVSProductivity

Solution Approach 1:

The system uses a composite structure combining a fine micromesh filter cloth for debris prevention with a supportive rigid framework and optimized flow channels. This composite design maintains high filtration effectiveness while ensuring adequate water flow capacity through the integrated structure

Inventive Principle:
Principle #40Composite materials

Data Source

PatentUS9010029B2Self cleaning shield
Publication Date: 2015.04.21 HIGGINBOTHAM EDWARD A
  • US9010029B2 patent drawing
  • US9010029B2 patent drawing
  • US9010029B2 patent drawing

AI summary

A gutter guard device is provided for preventing material from entering a gutter to which the gutter guard device is mounted. The device includes a stand alone filtration element configured to be mounted to the gutter. The filtration element has a substantially planar surface formed from a plurality of threads, the substantially planar surface having a longitudinal edge configured to be positioned substantially parallel to a longitudinal direction of the gutter; and a downward extending channel having a longitudinal direction that is obliquely oriented relative to the longitudinal edge of the substantially planar surface.