Blank Chamber Offset Gas Passageway Design
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Solution Overview
Problem
There is a need for a firearm-like device that replicates the appearance and operational characteristics of a real gun but is incapable of firing live ammunition, to avoid legal restrictions and liabilities associated with gun ownership and transportation, particularly for industries and hobbyists seeking realistic machine gun replicas.
Innovation Solution
A blank handling device with a modified receiver that is designed to only fire blanks, featuring a gas flow passageway offset from the blank receiving chamber, preventing the passage of live ammunition and incorporating tamper-resistant materials to prevent conversion into a live ammunition-firing weapon, along with an adjustment mechanism for optimizing blank discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a device is designed to replicate the appearance and operational characteristics of a real gun, then operational realism is improved, but the device may be classified as a firearm subjecting users to legal restrictions and liabilities
Solution Approach 1:
The patent applies local quality by modifying specific internal features of the receiver (gas flow passageway configuration, chamber dimensions) while maintaining the overall external appearance and operational characteristics of a real firearm. This allows the device to retain operational realism in specific local areas while ensuring legal compliance through localized structural modifications that prevent live ammunition firing.
Solution Approach 2:
The patent employs asymmetry by offsetting the gas flow passageway from the central axis of the blank receiving chamber. This asymmetric configuration creates a structural imbalance that prevents proper functioning with live ammunition while preserving the symmetric external appearance and operational realism of the firearm replica.
2Adaptability or versatility
If a receiver is designed to accept live ammunition, then versatility is improved, but safety deteriorates due to risk of accidental discharge and legal liabilities
Solution Approach 1:
The patent applies preliminary anti-action by designing the gas flow passageway and chamber configuration in advance to prevent live ammunition from being properly contained and fired. The offset passageway and specific dimensional relationships create inherent structural barriers that preemptively block the firing mechanism's ability to function with live rounds, eliminating safety risks before they can manifest.
Solution Approach 2:
The patent converts the potential harm of accidental live ammunition discharge into a benefit by using the same gas flow dynamics that power blank firing to create structural features (offset passageway, specific chamber dimensions) that inherently prevent live ammunition from being properly seated and ignited. The design transforms a safety risk into a safety mechanism.
3Productivity
If the gas flow passageway is centered with the blank receiving chamber, then operational efficiency is improved, but the device may accidentally fire live ammunition, worsening safety
Solution Approach 1:
The patent deliberately introduces asymmetry by offsetting the gas flow passageway from the central axis of the blank receiving chamber. This asymmetric positioning reduces operational efficiency slightly but eliminates the safety risk of accidental live ammunition discharge by preventing proper alignment and containment of live rounds throughout the firing cycle.
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 device allows for realistic blank firing without subjecting users to firearm regulations, ensuring compliance with legal definitions of a 'non-gun' and enhancing safety by preventing accidental live ammunition discharge, while maintaining operational realism and safety.
Implementation Method 1
A gas flow passageway is fluidly coupled to and extends between the blank receiving chamber and the gas discharging passageway for conducting gasses discharged by the firing of the blank cartridge between the blank receiving chamber and the gas discharging passageway
Data Source
AI summary
A blank handling device is provided for receiving and firing a blank cartridge for use in a non-gun. The handling device includes a housing having a blank receiving chamber sized and configured for holding the blank during firing. The blank receiving chamber includes a first axis and a first diameter. A gas discharging passageway capable of being coupled to a barrel of a non-gun, is provided that has a second axis and a second diameter. A gas flow passageway is fluidly coupled to and extends between the blank receiving chamber and the gas flow passageway for conducting gasses discharged by the firing of the blank cartridge between the blank receiving chamber and the gas discharging passageway. The gas flow passageway has a third axis and a third diameter. The third diameter is less than the first diameter for preventing the passage through the gas flow passageway of a projectile discharged in the blank receiving chamber.