Wireless Decoy Jerk String System for Waterfowl Hunting

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Solution Overview

Problem

Current jerk string systems for waterfowl hunting are cumbersome, difficult to deploy and maintain, and lack water-resistance and corrosion-resistance, making them unsuitable for cold, wet, and inclement conditions.

Innovation Solution

An automatic wireless decoy jerk string system featuring a main housing unit with a retractable reel, a drive housing unit with a direct current motor and wireless remote control, and a flotation housing unit, allowing for wireless operation, water-resistance, and corrosion-resistance, enabling easy setup and deployment in harsh conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If current jerk string systems are used, then decoy movement can be achieved, but the system becomes heavy, bulky, and difficult to transport

Engineering Contradiction:
Improveease of transportVSAvoidsystem weight
Core Design Contradiction:
Ease of operationVSWeight of moving object

Solution Approach 1:

The jerk string system is divided into multiple modular components: a reel assembly, a motor assembly, and a housing assembly. Each component can be independently manufactured, assembled, and replaced. The reel assembly contains the jerk string spool and pawl-ratchet mechanism, while the motor assembly houses the DC motor and battery pack, allowing for optimized weight distribution and ease of transport.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The reel is nested within the housing, and the jerk string is wound around the spool which is mounted on the drive shaft. The motor assembly is integrated into the housing structure, with the battery pack positioned to balance the overall center of gravity. This nested arrangement minimizes the external dimensions and overall weight of the system while maintaining all necessary functions.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Ease of operation

If current jerk string systems are used, then decoy movement can be controlled, but the system becomes complicated to maintain and operate with many parts requiring assembly

Engineering Contradiction:
Improveease of maintenanceVSAvoidsystem complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The complex internal mechanisms, including the gear train, pawl-ratchet assembly, and motor mounting structures, are enclosed within a sealed housing. This extraction of complexity from the user-interaction zone allows hunters to operate and maintain the device without needing to understand or access the internal mechanical complexity. The reel can be removed as a single unit for maintenance without disassembling the entire system.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system is designed with a balanced center of gravity achieved by positioning the battery pack and motor assembly to counterbalance the reel assembly. This equipotential design makes the device easy to handle and deploy without requiring complex adjustment mechanisms, reducing operational complexity while maintaining controllability.

Inventive Principle:
Principle #12Equipotentiality

3Productivity

If current jerk string systems are used, then decoy movement can be achieved, but the system is slow to deploy and take-down

Engineering Contradiction:
Improvedeployment speedVSAvoidsetup time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The reel is pre-loaded with the jerk string during manufacturing, and the pawl-ratchet mechanism is pre-assembled and pre-lubricated. The DC motor and battery pack are pre-wired and tested before final assembly. This preliminary preparation eliminates the need for field assembly of critical components, allowing hunters to deploy the system quickly by simply attaching the reel to the anchor point and threading the jerk string through the guide rings.

Inventive Principle:
Principle #10Preliminary action

4Reliability

If current jerk string systems are used, then decoy movement can be controlled, but the system lacks water-resistance and corrosion-resistance

Engineering Contradiction:
Improvewater-resistanceVSAvoidwater damage
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The housing is constructed from corrosion-resistant materials such as anodized aluminum or marine-grade stainless steel, while the reel components use rust-proof alloys. The jerk string itself is made from synthetic materials like nylon or polyethylene that resist water absorption and degradation. Seals and gaskets made from rubber or polymer materials prevent water ingress into the motor and battery compartments, ensuring reliable operation in wet and corrosive environments.

Inventive Principle:
Principle #40Composite materials

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 provides a compact, quick-to-deploy, and easy-to-use solution that mimics the movement of real waterfowl, enhancing hunting efficiency by allowing hunters to control decoy movement remotely and maintaining functionality even if submerged in water.

Implementation Method 1

The drive housing unit contains a direct current motor, a battery for powering the direct current motor

Methodology Applied
Scientific EffectDirect current motor: Battery (electricity)

Implementation Method 2

The flotation housing unit contains a counterweight and flotation material

Methodology Applied
Scientific EffectBuoyancy: Archimedes' Principle (Buoyancy)

Data Source

PatentUS11896001B2Automatic wireless decoy jerk string system
Publication Date: 2024.02.13 MVENT LLC
  • US11896001B2 patent drawing
  • US11896001B2 patent drawing
  • US11896001B2 patent drawing

AI summary

An automatic wireless decoy jerk string system is disclosed. The system includes a main housing, a drive housing, and a flotation housing. The main housing contains a retractable reel wound with a line. The drive housing contains a direct current motor, a battery for powering the motor, and a wireless receiver. The flotation housing contains a counterweight and flotation material. The drive housing and the flotation housing are attached to either side of the main housing. A drive shaft runs from the drive housing through the main housing and into the flotation housing. The motor engages the drive shaft to operate the reel. The motor is controlled by signals from the receiver in response to a wireless signal received by the receiver from a remote control to cause the reel to alternatingly retract the line and let out the line.