Spring-Free Floating Lock for Adjustable Fishing Line Attachment

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Solution Overview

Problem

Existing fishing floats and bobbers often create weak points in fishing lines due to spring-loaded mechanisms, are cumbersome to adjust, and require labor-intensive assembly, making them inefficient and prone to tangling.

Innovation Solution

A two-part locking device with an internal, centrally located mechanism that allows for easy attachment and adjustment by twisting, eliminating the need for knots and reducing line distortion, featuring male and female components that securely lock onto the fishing line.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If spring-loaded mechanisms are used to attach floats to fishing lines, then the attachment is secure, but weak points are created in the fishing line due to distortion and kinking

Engineering Contradiction:
Improveline strengthVSAvoidattachment reliability
Core Design Contradiction:
StrengthVSReliability

Solution Approach 1:

The patent removes the spring-loaded mechanism entirely from the float design. Instead, the float body itself is designed with an internal passage that accepts the fishing line, eliminating the distorting spring mechanism while maintaining secure attachment through the float's structural design.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

Rather than having the spring mechanism grip the line from the outside, the invention inverts the approach by having the line pass through the float's internal structure. This reverses the attachment methodology to avoid external distortion forces.

Inventive Principle:
Principle #13The other way round (Inversion)

2Reliability

If push rod configurations are used to lock floats onto lines, then the line is secured, but the device becomes cumbersome to adjust for depth changes

Engineering Contradiction:
Improveattachment reliabilityVSAvoiddepth adjustment ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The float design allows dynamic adjustment of depth by simply sliding the float along the line. The internal passage structure enables the line to move freely through the float, allowing quick depth changes without complex locking or unlocking mechanisms.

Inventive Principle:
Principle #15Dynamics

3Reliability

If fishing lines are tied directly onto bobber eyelets or loops, then secure attachment is achieved, but the process becomes time-consuming and tedious

Engineering Contradiction:
Improveattachment reliabilityVSAvoidattachment time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The float is pre-designed with an internal passage structure that accommodates the fishing line. This preliminary structural preparation eliminates the need for time-consuming knot-tying operations, as the line simply needs to be threaded through the pre-formed passage.

Inventive Principle:
Principle #10Preliminary action

4Manufacturing precision

If slip bobbers are manufactured by turning balsa wood on lathes and assembling multiple components by hand, then precision and quality are achieved, but the manufacturing process becomes labor-intensive

Engineering Contradiction:
Improvefloat precisionVSAvoidmanufacturing ease
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The float is designed as a two-part construction with a body portion and a cap portion that can be manufactured separately and then assembled. This segmentation allows for simplified manufacturing of each component while maintaining overall precision through the standardized interface between parts.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent combines the float body and cap into a unified structure where the cap fits over the body to form the complete float. This merging of components simplifies the overall manufacturing process while maintaining the precision needed for functional performance.

Inventive Principle:
Principle #5Merging (Combining)

5Adaptability or versatility

If bobber stops are added or removed to adjust slip bobber depth, then depth positioning is achieved, but the process becomes difficult and time-consuming

Engineering Contradiction:
Improvedepth positioning capabilityVSAvoiddepth adjustment ease
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The float design allows dynamic adjustment of depth by simply sliding the float along the line. The internal passage structure enables the line to move freely through the float, allowing quick depth changes without complex locking or unlocking mechanisms.

Inventive Principle:
Principle #15Dynamics

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 secure, adjustable, and efficient attachment method for fishing lines, reducing line distortion and tangling, while allowing quick repositioning and accommodating various line diameters and electronic components.

Implementation Method 1

Due to the buoyancy of floats, they can carry bait to otherwise inaccessible areas of water by drifting along in a prevailing current

Methodology Applied
Scientific EffectBuoyancy: Archimedes' Principle (Buoyancy)

Implementation Method 2

The floating device includes an internal, centrally located friction grip locking mechanism

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS12369573B2Spring-free floating device for locking about a fishing line
Publication Date: 2025.07.29 CARLSON EDWARD SCOTT
  • US12369573B2 patent drawing
  • US12369573B2 patent drawing
  • US12369573B2 patent drawing

AI summary

The present invention provides a floating locking device that includes two components that thread together adjacent the external perimeter, and an internal central locking mechanism that includes a compressing closing section and a receiving opening section (male and female) that can lock the device at a desired location on a fishing line.