Spring Biasing Mechanism for Firearm Magazine Ejection

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Solution Overview

Problem

Current firearms rely heavily on gravity for magazine ejection, which can result in hang-ups and slow reload times, especially in adverse positions or when debris contaminates the magazine channel, leading to potential life-threatening delays in military, police, and competitive shooting scenarios.

Innovation Solution

A removal assist mechanism integrated into the firearm magazine, utilizing a biasing mechanism with a spring or alternative means to enhance the ejection force and reliability, allowing for drop-free magazine ejection at various angles without manual intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If gravity alone is used for magazine ejection, then the device complexity is minimized, but the reliability of magazine ejection deteriorates due to hang-ups and position-dependent failures

Engineering Contradiction:
Improvemagazine ejection reliabilityVSAvoidejection mechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The magazine ejection system uses the magazine's own weight and the spring mechanism to propel itself out of the firearm. The spring stores energy during magazine insertion and automatically releases it during ejection, making the system self-actuating without requiring external power sources or complex control systems.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The ejection mechanism transitions from a static gravity-dependent system to a dynamic spring-driven system. The spring provides variable force during ejection, initially overcoming friction and hang-ups, then propelling the magazine outward. This dynamic force application significantly improves ejection reliability across different firearm positions.

Inventive Principle:
Principle #15Dynamics

2Productivity

If gravity-dependent ejection is used, then the ease of manufacture is maximized, but the speed of magazine ejection deteriorates leading to slower reload times

Engineering Contradiction:
Improvereload speedVSAvoidmanufacturing simplicity
Core Design Contradiction:
ProductivityVSEase of manufacture

Solution Approach 1:

The spring mechanism is pre-compressed during magazine insertion into the firearm. This preliminary energy storage occurs during normal operation, and the stored energy is then released during ejection to propel the magazine outward rapidly. This pre-actioning of the ejection force significantly increases ejection speed without adding complex active systems.

Inventive Principle:
Principle #10Preliminary action

3Loss of time

If manual pulling is required for hung-up magazines, then the device complexity remains low, but the loss of time increases during magazine changes

Engineering Contradiction:
Improvetime lost to manual interventionVSAvoidautomatic ejection capability
Core Design Contradiction:
Loss of timeVSEase of operation

Solution Approach 1:

The spring mechanism applies more force than strictly necessary for simple ejection, providing excess force that reliably overcomes friction, debris, and hang-up conditions. This excessive action ensures complete magazine extraction without requiring manual intervention, eliminating time losses in critical situations.

Inventive Principle:
Principle #16Partial or excessive action

4Reliability

If gravity alone is used for ejection, then the device complexity is minimized, but the reliability deteriorates in dirty environments due to debris interference

Engineering Contradiction:
Improveejection reliability in contaminated environmentsVSAvoidejection mechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The spring mechanism pre-loads during magazine insertion, storing energy that is then released as a powerful ejection force. This preliminary energy storage enables the system to overcome debris and contamination in the magazine well that would prevent gravity-dependent ejection, significantly improving reliability in dirty environments without adding complex protective systems.

Inventive Principle:
Principle #10Preliminary action

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

Significantly increases the speed and reliability of magazine ejection, reducing the time required for reloads and minimizing movement, thus enhancing safety and performance in critical situations by providing additional ejection force beyond gravity, preventing hang-ups, and maintaining functionality in dirty environments.

Implementation Method 1

a spring mechanism having a follower that moves the rounds up the magazine housing to the firing chamber

Methodology Applied
Scientific EffectSpring: Spring

Implementation Method 2

Most of these firearms require gravity as the main force for the magazine falling free from the firearm

Methodology Applied
Scientific EffectGravity: Gravitation

Data Source

PatentUS11709026B1Removal assist mechanism for fire arm magazine
Publication Date: 2023.07.25 HOFFMAN BENJAMIN
  • US11709026B1 patent drawing
  • US11709026B1 patent drawing
  • US11709026B1 patent drawing

AI summary

The inventive technology describe herein employs a removal assist mechanism for a firearm magazine that eliminates hang-ups and gravitational restrictions and allows consistent, reliable, safe, and dependable magazine ejection from a firearm. This removal assist mechanism is for a firearm having a magazine release actuator. The embodiment of the overall mechanism includes a biasing mechanism connected to the magazine and which extends from the magazine to contact a part of a firearm containing the magazine, wherein the biasing mechanism biases against the firearm part when the magazine is inserted into the firearm and remains under resistive force while the magazine is retained therein, until released by the magazine release actuator whereupon releasing the biasing mechanism assists in ejection of the magazine.