Meshless Straw Blanket for Erosion Control

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Solution Overview

Problem

Existing erosion control blankets with mesh reinforcement are not biodegradable, pose hazards to wildlife, and can entangle with lawn mowers, while also failing to fully address seed protection from wind and animals.

Innovation Solution

A meshless erosion control blanket made from plant material such as straw, formed into layers with an adhesive applied and dried using forced air, then compressed to create a strong and flexible mat without the need for polymer mesh reinforcement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If polymer mesh reinforcement is used in erosion control blankets, then the structural strength and stability are improved, but the biodegradability deteriorates and hazards to wildlife increase

Engineering Contradiction:

Improvestructural strengthVSAvoidhazards to wildlife

Core Design Contradiction:

StrengthVSObject-affected harmful factors

Solution Approach 1:

The patent removes the polymer mesh reinforcement component from the erosion control blanket, extracting the harmful element while retaining the essential erosion control function through natural fiber construction alone

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent changes the material composition parameter from synthetic polymer to natural plant-based fibers, fundamentally altering the biodegradability and environmental safety characteristics while maintaining structural integrity

Inventive Principle:

Principle #35Parameter changes

2Stability of the object's composition

If polymer mesh reinforcement is used in erosion control blankets, then the structural stability is improved, but the entanglement with lawn mowers increases

Engineering Contradiction:

Improvestructural stabilityVSAvoidlawn mower entanglement

Core Design Contradiction:

Stability of the object's compositionVSObject-generated harmful factors

Solution Approach 1:

The patent removes the polymer mesh component that causes entanglement problems with lawn mower equipment, eliminating the harmful interaction while preserving blanket functionality

Inventive Principle:

Principle #2Taking out (Extraction)

3Strength

If adhesive is applied to bind plant material layers, then the binding strength is improved, but the drying time increases

Engineering Contradiction:

Improvebinding strengthVSAvoiddrying time

Core Design Contradiction:

StrengthVSLoss of time

Solution Approach 1:

The patent uses forced air circulation (pneumatic method) to accelerate the drying process of the adhesive, reducing drying time while maintaining binding strength through enhanced evaporation rates

Inventive Principle:

Principle #29Pneumatics and hydraulics

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 meshless blanket effectively prevents erosion, protects seeds from wind and animals, and is biodegradable, reducing hazards to wildlife and lawn mower entanglements.

Implementation Method 1

one or more fans may be utilized to provide forced air drying of the adhesive

Methodology Applied

Scientific EffectForced convection: Forced Convection

Data Source

PatentUS9382684B1Meshless blanket for grass seed

Publication Date: 2016.07.05 RHINO SEED & LANDSCAPE SUPPLY LLC

AI summary

A netless straw mat or blanket for grass seed and other such applications is formed by applying an adhesive to a layer of straw. The layer of straw is compressed and formed into a roll for distribution and use at an installation site.