Natural Feather Crosslinking for Durable Shuttlecocks and Fletchings

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Solution Overview

Problem

Natural feather shuttlecocks and arrow fletchings in sporting goods lack structural stability and durability, leading to frequent damage and high replacement costs, affecting game performance and efficiency.

Innovation Solution

The use of crosslinking agents, such as homobifunctional, heterobifunctional, and trifunctional agents, to crosslink the reactive groups on natural feathers, combined with additional reinforcements like threads or filaments, to enhance structural integrity and durability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If natural feathers are used in shuttlecocks and arrow fletchings, then the sporting goods achieve good flight characteristics and performance, but the feathers lack structural stability and durability, leading to frequent damage

Engineering Contradiction:
ImprovedurabilityVSAvoidstructural stability
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The patent applies chemical crosslinking agents to modify the physical and chemical parameters of the feather proteins. The crosslinking process creates covalent bonds between protein chains, fundamentally changing the structural parameters of the feather material to achieve enhanced durability and structural stability while preserving flight characteristics

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite structure by combining natural feather material with synthetic crosslinking agents. This composite approach integrates the aerodynamic properties of natural feathers with the structural reinforcement of chemical crosslinks, resulting in a material that exhibits both good flight characteristics and improved durability

Inventive Principle:
Principle #40Composite materials

2Reliability

If natural feather shuttlecocks are used, then the flight characteristics are superior, but the shuttlecocks are expensive due to frequent replacement

Engineering Contradiction:
Improveflight consistencyVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent applies crosslinking treatment as a preliminary action during the manufacturing process. By pre-crosslinking the feathers before assembling the shuttlecock, the product achieves extended service life and reduced replacement frequency, thereby lowering the total cost of ownership while maintaining flight consistency

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The crosslinking process modifies the physical and chemical parameters of the feather material to enhance durability. This parameter change ensures that the shuttlecock maintains its flight characteristics over a longer period, reducing the frequency of replacement and associated costs

Inventive Principle:
Principle #35Parameter changes

3Strength

If crosslinking agents are applied to natural feathers, then structural stability and durability are improved, but the complexity of the treatment process increases

Engineering Contradiction:
Improvestructural stabilityVSAvoidprocess complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The patent replaces complex mechanical reinforcement methods with chemical crosslinking. Instead of physically reinforcing the feathers through mechanical means, the process uses chemical reactions to create crosslinks within the protein structure, simplifying the overall treatment approach while achieving enhanced structural stability

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The crosslinking agents are designed to automatically penetrate and react with the feather protein structures without requiring complex application equipment. The chemical process self-regulates to achieve uniform crosslinking distribution, reducing the need for complex process control mechanisms

Inventive Principle:
Principle #25Self-service

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 treated shuttlecocks and fletchings exhibit prolonged durability and consistent flight characteristics, significantly extending their lifespan and reliability, while maintaining performance comparable to untreated ones.

Implementation Method 1

contacting the natural feather shuttlecock with at least one or more crosslinking agents, wherein the one or more crosslinking agents crosslink the feathers of the shuttlecock

Methodology Applied
Scientific EffectCrosslinking: Chemical Bonding

Data Source

PatentUS11332880B2Modifying natural feathers for use in sporting goods
Publication Date: 2022.05.17 DURABIRD
  • US11332880B2 patent drawing
  • US11332880B2 patent drawing
  • US11332880B2 patent drawing

AI summary

Methods, apparatus and kits for modifying natural feathers that are used in sporting goods that result in long lasting feathers with increased mechanical stability, reliability and durability as well as improved flight consistency are disclosed. Some of the sporting goods that use natural feathers are badminton shuttlecocks, arrow fletchings, and darts. The disclosed methods consist of controlled treatment of feather shuttlecocks with crosslinking agents to crosslink the keratin protein present on the natural feathers of the shuttlecock.