Composite structural member

Details Composite structural member Composite structural member

2005-05-10

2005-05-10

Carone, Michael J. (Department: 3641)

Firearms

Barrels

Materials or coatings

C042S076010, C089S015000, C089S016000

Reexamination Certificate

active

06889464

ABSTRACT:
To make a composite gun barrel, an inner barrel of a hard refractory material is formed and a composite jacket formed over it to increase the stiffness and strength while not adding excessive weight. The tows in the external jacket are varied in pitch along the barrel to decrease the amplitude of vibrations of a muzzle during firing. High thermal conductivity material is added to the resin to increase thermal conductivity. In the preferred embodiment, the thermally conductive material is chopped pitch-based carbon fibers and these are randomly oriented. A gas port is added and shielded from the composite material and a metal muzzle piece protects the composite from hot gases.

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