Firearm Magazine Feed Slot Curvature Correction Tool

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Solution Overview

Problem

Military firearms often experience malfunctions due to improperly curved feed slot elements in ammunition magazines, leading to operational issues until proper adjustments can be made with suitable tools.

Innovation Solution

A tool with a curved edge and indicia is provided to compare and correct the curvature of feed slot elements, allowing for precise measurement and adjustment of magazine feed lips to ensure proper firearm functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If proper tools are not readily available, then firearm malfunctions cannot be corrected promptly, but having specialized tools increases device complexity and availability requirements

Engineering Contradiction:
Improvefirearm operational reliabilityVSAvoidtool availability requirements
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The template tool enables users to self-diagnose and self-correct feed slot curvature issues without requiring specialized service centers or expert technicians. The template provides direct visual comparison capability that allows end-users to assess and adjust feed slots themselves, eliminating the need for complex diagnostic equipment or trained personnel.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The template serves as an intermediary reference standard between the feed slot element and the desired correct curvature. Instead of requiring complex measurement devices or expert judgment, the template provides a simple visual intermediary that mediates the comparison and adjustment process, making the correction procedure accessible to ordinary users.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Manufacturing precision

If feed slot curvature is not properly measured, then firearm malfunctions occur, but implementing precise measurement systems increases device complexity

Engineering Contradiction:
Improvefeed slot curvature precisionVSAvoidmeasurement system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The template creates a visual copy or replica of the correct feed slot curvature profile. Instead of using complex measurement instruments that require calibration and operation skills, the template provides a simplified visual copy that can be directly compared against the actual feed slot, making precise curvature assessment accessible without sophisticated equipment.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The template divides the curvature assessment into discrete visual segments or zones that correspond to different portions of the feed slot element. This segmentation allows users to systematically compare specific sections of the feed slot against the template, making the measurement process more manageable and less complex than requiring comprehensive dimensional analysis.

Inventive Principle:
Principle #1Segmentation

3Productivity

If feed slot elements are adjusted frequently, then firearm functionality is maintained, but adjustment operations become more complex and time-consuming

Engineering Contradiction:
Improvefirearm maintenance efficiencyVSAvoidadjustment operation simplicity
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The template performs the preliminary action of establishing the correct curvature reference before any adjustment work begins. By having the correct curvature profile readily available in visual form, users can quickly identify exactly what needs to be adjusted and to what degree, eliminating the need for time-consuming measurement and calculation processes during the adjustment operation itself.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS8479404B1Firearm tool
Publication Date: 2013.07.09 SAMSON MFG CORP
  • US8479404B1 patent drawing
  • US8479404B1 patent drawing
  • US8479404B1 patent drawing

AI summary

A tool for a firearm provides a member including a curved edge forming a comparison template adapted for comparison with feed slot elements of an ammunition magazine suitable for use with the firearm, for determining curvature corrections needed for the feed slot elements.