Gas-Piston System with Extraction and Nesting for Firearm Reloading
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Solution Overview
Problem
Automatic firearm systems that use firing gases for reloading often suffer from issues such as clogging and soiling of components due to waste materials, and structural constraints that affect accuracy and performance.
Innovation Solution
A firearm system incorporating a Direct Impingement Indexed Piston System, where a piston shroud is mounted to the upper receiver and a piston is connected to the bolt carrier, receiving firing gas force for reciprocating movement to drive reloading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If firing gases are used to drive the projectile and enable automatic reloading, then productivity and automation are improved, but harmful factors (soiling and clogging of components) increase
Solution Approach 1:
The patent extracts the harmful firing gases from the upper receiver by introducing a gas tube that conducts gases away from the receiver interior. The gas tube receives firing gases from the barrel and directs them through an opening in the upper receiver, preventing gases from soiling internal components while still enabling automatic reloading functionality.
2Productivity
If traditional gas blocks and gas tubes are used, then reloading function is achieved, but device complexity and structural constraints increase
Solution Approach 1:
The gas tube receiver serves multiple functions: it acts as a mounting structure for the gas tube, provides a conduit for firing gases, and integrates with the piston shroud assembly. This multi-functionality reduces the need for separate components and simplifies the overall structure while maintaining the reloading function.
Solution Approach 2:
The gas tube is received within the gas tube receiver, which is integrated into the piston shroud assembly. This nested arrangement allows the gas management system to be compactly integrated within existing firearm structures, reducing overall complexity.
3Stability of the object's composition
If the barrel is rigidly constrained, then structural stability is improved, but accuracy and performance under firing conditions deteriorate
Solution Approach 1:
The patent introduces a movable gas tube receiver that can shift position relative to the upper receiver during firing. This dynamic adjustment allows the gas tube receiver to move with barrel recoil and vibration, maintaining proper gas flow while accommodating barrel movement, thereby preserving both structural stability and accuracy.
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 effectively transfers firing force to the bolt carrier for automatic reloading, reducing component soiling and structural constraints, thereby improving accuracy and performance.
Implementation Method 1
The piston may be arranged within the piston shroud to receive force from firing gas from the barrel for reciprocating movement
Data Source
AI summary
A firearm system includes an upper receiver and a barrel mounted to the upper receiver and configured to fire projectiles. The firearm system further includes a bolt carrier arranged within the upper receiver for reciprocation during firing. The firearm system further includes a gas-piston system for transferring firing force to the bolt carrier for reloading after each projectile is discharged from the barrel.