High temperature composite projectile barrel

US20160209143A1Inactive Publication Date: 2016-07-21PROOF RES
19 Cites 3 Cited by

Patent Information

Authority / Receiving Office
US ¡ United States
Current Assignee / Owner
PROOF RES
Publication Date
2016-07-21
Estimated Expiration
Not applicable ¡ inactive patent

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Abstract

A composite projectile barrel is disclosed comprising a polymer matrix composite outer shell that accommodates higher temperature loading. In one embodiment, the invention comprises an outer shell fabricated from carbon fibers and polyimide resin having a glass transition temperature greater than 500° F. In another embodiment, the resin mixture includes a plurality of sizes of aluminum particles, between about 0.1 microns and 10.0 microns in diameter and of approximately spherical shape, as a thermal conductive additive.
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Description

CROSS REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority to two Provisional patent application No. 61 / 871,154 filed Aug. 28, 2013 and No. 61 / 873,771 filed Sep. 4, 2013. The entire disclosures of both provisional applications are hereby incorporated by reference and relied upon.BACKGROUND OF THE INVENTION

[0002] Users have long desired lighter gun systems that remain durable and reliable. It is known to substitute relatively strong but lightweight materials—such as unreinforced and reinforced polymers, continuous glass fiber or carbon fiber composites—for various portions of the gun commonly fabricated from steel, aluminum, or other metals. Attention has focused on gun barrels, which constitute a large percentage of a gun's weight. It is known, for example, to fabricate a gun barrel having a steel inner liner surrounded by a carbon fiber reinforced polymer matrix composite (PMC) outer shell, incorporating a resin. This combination lightens the gun while retaining g...

Claims

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