Propellant-Driven Cleaning Slug for Firearm Bore Maintenance
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Solution Overview
Problem
Firearm barrel cleaning is a time-consuming and often neglected task due to its labor-intensive nature, leading to residue and debris buildup in ballistic barrels over time.
Innovation Solution
A disposable ballistic barrel cleaning cartridge comprising a casing with propellant and an abrasive-binding agent composite slug, where the expansion of propellant propels the slug down the barrel, utilizing materials like fiberglass or glass with a polymerized binding agent to effectively clean the bore without scratching the steel surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If traditional manual cleaning methods are used, then cleaning effectiveness is achieved, but time consumption and labor effort increase significantly
Solution Approach 1:
The cleaning system performs self-service by using the firearm's own propellant charge to propel the cleaning slug through the bore. The user simply loads the cartridge and fires, allowing the expanding gases to automatically drive the cleaning mechanism without manual intervention or additional energy input.
Solution Approach 2:
The patent replaces traditional mechanical cleaning systems (manual rods, patches, and scrapers) with a propellant-driven slug system. The chemical energy of the propellant is converted to mechanical kinetic energy to propel the abrasive slug, substituting manual mechanical operations with an automated chemical-mechanical system.
2Reliability
If abrasive materials are used to clean the bore, then cleaning effectiveness improves, but risk of scratching the steel surface increases
Solution Approach 1:
The cleaning slug uses a composite structure combining abrasive particles (glass or aluminum oxide) embedded in a polymer matrix (nylon or Delrin). This composite design allows the abrasive to effectively remove carbon and copper deposits while the polymer binder prevents the abrasive from becoming too aggressive, reducing the risk of scratching the steel bore surface.
Solution Approach 2:
The patent controls the hardness and composition parameters of the slug material to optimize cleaning effectiveness while preventing damage. By selecting specific abrasive particle sizes, concentrations, and polymer matrix properties, the system achieves sufficient cutting action to remove fouling while maintaining a hardness level below that of the steel bore to prevent scratching.
3Duration of action of stationary object
If a reusable cleaning system is used, then cleaning capability is maintained, but device complexity and maintenance requirements increase
Solution Approach 1:
The patent employs a disposable cleaning cartridge that is loaded, fired, and discarded after a single use. This eliminates the complexity of reusable systems with moving parts, adjustment mechanisms, and maintenance requirements. The low cost of the disposable slug allows users to perform frequent cleanings without concern for system complexity or maintenance.
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 cartridge efficiently cleans the firearm barrel by propelling the abrasive composite slug, reducing the time and effort required for maintenance while ensuring the barrel remains in good condition for accurate shooting.
Implementation Method 1
Expansion of the propellant is operable to expel the abrasive-binding agent composite slug from the casing recess and propel the abrasive-binding agent composite slug down a bore of a firearm
Implementation Method 2
an abrasive-binding agent composite slug constructed with an abrasive agent and a polymerized binding agent
Data Source
AI summary
An apparatus including a ballistic barrel cleaning cartridge is provided. The apparatus includes a casing including a casing recess. The casing recess is closed at a first end of the casing. The apparatus further includes a propellant disposed within the casing recess and an abrasive-binding agent composite slug constructed with an abrasive agent and a polymerized binding agent. The abrasive-binding agent composite slug is disposed within the casing recess at a second end of the casing. Expansion of the propellant is operable to expel the abrasive-binding agent composite slug from the casing recess and propel the abrasive-binding agent composite slug down a bore of a firearm.