Composite Firearm Barrel Sleeve for Heat-Safe Accuracy
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Solution Overview
Problem
Existing firearm barrels do not have a non-metal outer sleeve that allows for safe handling after repeated firings and maintain improved shooting accuracy.
Innovation Solution
A firearm barrel design featuring a non-metal outer sleeve composed of carbon fiber tubes and a coupler bushing, with features like twist rifling, gas escape holes, and a sleeve nut, allowing for assembly and improved accuracy through tensioning of the inner diameter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a metal barrel is used, then strength and durability are improved, but weight increases and heat dissipation becomes problematic
Solution Approach 1:
The patent employs a composite structure consisting of an inner metal barrel and an outer carbon fiber sleeve. The metal barrel provides the necessary strength and durability to withstand firing pressures, while the carbon fiber sleeve reduces overall weight and improves heat dissipation. This composite material approach resolves the contradiction by combining materials with complementary properties.
2Stability of the object's composition
If a metal barrel is used, then structural integrity is improved, but heat accumulation increases affecting handling safety
Solution Approach 1:
The carbon fiber outer sleeve acts as a thermal management layer, conducting heat away from the metal barrel more efficiently. This composite structure maintains the structural integrity of the metal barrel while the carbon fiber sleeve dissipates heat, preventing excessive temperature buildup and improving handling safety after repeated firings.
Solution Approach 2:
The patent extracts the thermal management function from the structural function by separating them into two distinct layers: the metal barrel handles structural integrity and pressure containment, while the carbon fiber sleeve handles heat dissipation. This functional separation allows each material to optimize its primary role without compromise.
3Ease of manufacture
If traditional metal barrels are used, then manufacturing simplicity is maintained, but shooting accuracy is reduced
Solution Approach 1:
The composite structure of metal barrel with carbon fiber sleeve provides enhanced shooting accuracy through improved vibration damping and thermal stability. The carbon fiber layer reduces barrel harmonics and maintains consistent barrel dimensions under thermal stress, while the metal barrel remains manufacturable using conventional processes. The combination achieves superior accuracy without sacrificing manufacturing feasibility.
Data Source
AI summary
A firearm barrel with non-metal outer sleeve preferably includes an elongated tube, a first non-metal tube, a second nonmetal tube, a sleeve nut and a coupler bushing. A first raised sleeve support section and a raised coupler section are formed on the elongated sleeve. The raised coupler section is formed in substantially a middle of the elongated tube. The bushing inner diameter is sized to slidably receive an outer diameter of the raised coupler section. The first and second non-metal tubes include a tube inner diameter and a plurality of openings formed through a wall thereof. The tube inner diameters are sized to slidably receive an outer diameter of the first raised sleeve support section and each end of the coupler bushing. The sleeve nut retains the first and second non-metal tubes and the coupler bushing on the elongated tube. A second embodiment includes a single non-metal tube.