Firearm Magazine Floor Plate with Mechanical Status Indicator
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Solution Overview
Problem
Firearm magazine users face difficulties in determining the ammunition quantity, especially in low-light environments, due to opaque materials and limited visibility through transparent windows.
Innovation Solution
A magazine floor plate with a mechanical status indicator that includes an indicator member movable between retracted and extended positions, using a coil spring and roll pin, providing visual and tactile feedback on ammunition load, visible and felt when the magazine is fully or partially loaded.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If opaque materials are used for magazine construction, then structural integrity and durability are improved, but visibility of ammunition quantity is worsened
Solution Approach 1:
The patent introduces an intermediary indicator mechanism that translates the internal state (ammunition quantity) into an external visible signal. The indicator member acts as a mediator between the ammunition quantity and the user's visual perception, allowing the magazine body to remain opaque for structural integrity while still providing visibility information through the indicator's position or color change.
2Loss of information
If transparent or translucent windows are incorporated, then visibility of ammunition quantity is improved, but effectiveness in low light environments is worsened
Solution Approach 1:
The patent employs color-changing properties in the indicator member to provide visual feedback that is effective across different lighting conditions. The indicator may change color based on ammunition quantity or incorporate high-visibility colors that maintain contrast and detectability in low-light environments, eliminating the need for transparent windows that fail in darkness.
3Measurement precision
If the user removes the magazine to check ammunition quantity, then accuracy of determination is improved, but loss of time and operational efficiency is worsened
Solution Approach 1:
The patent implements a real-time feedback mechanism through the indicator member that continuously displays ammunition quantity status without requiring user intervention. The indicator provides immediate visual feedback about the magazine's load state, allowing users to make informed decisions while the magazine remains installed, eliminating time loss while maintaining accurate information.
Solution Approach 2:
The indicator mechanism is self-actuating and requires no user action to update or activate. It automatically reflects the current ammunition quantity through its position or color state, providing self-service information that eliminates the need for users to remove the magazine or perform additional actions to check status.
4Loss of information
If a mechanical indicator device is added to the floor plate, then visibility and tactile feedback of ammunition quantity is improved, but device complexity is worsened
Solution Approach 1:
The patent merges the indicator function with the existing floor plate structure, integrating the indicator member into the floor plate assembly rather than adding a completely separate mechanism. This consolidation reduces overall complexity by combining multiple functions (structural support and indication) into a single integrated component.
Solution Approach 2:
The floor plate is designed to serve multiple functions: maintaining structural integrity, providing a mounting surface for the spring and indicator mechanisms, and enabling the visual/tactile indication function. By making the floor plate multi-functional, the patent avoids adding separate dedicated components for each function, thereby reducing overall device complexity.
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
Enables users to easily and accurately determine the ammunition quantity, enhancing decision-making and usability in various lighting conditions.
Implementation Method 1
a coil spring
Data Source
AI summary
Implementations of a magazine floor plate with a status indicator are provided. In some implementations, the magazine floor plate with a status indicator may be used by replacing the floor plate of a magazine for a firearm. In some implementations, the magazine floor plate may be configured to provide a visual and/or tactile indicator that relates to the quantity of ammunition contained within the magazine. In some implementations, the magazine floor plate may comprise a base pad and an internal floor plate having a mechanical indicator device thereon. In some implementations, a portion of the mechanical indicator device extends from the base pad of the magazine floor plate when the magazine is loaded to its minimum indication capacity. In this way, the user is provided with a visual and/or tactile indicator that relates to the quantity of ammunition contained with the magazine.