Nonmetallic gun barrel

Details Nonmetallic gun barrel Nonmetallic gun barrel

1992-06-22

1993-02-02

Johnson, Stephen M.

Ordnance

Barrels

Composite

42 7602, 42 78, F41A 2104, F41A 2118

Patent

active

051839580

ABSTRACT:
The invention is a nonmetallic gun barrel having a longitudinally rigid tubular exterior capable of radial elastic deformation upon passage of a projectile therethrough. Liner segments fixed at the inner diameter of the barrel exterior are abutted end to end and form spiraled rifling structures comprised of shallow channels and ridges between the channels. Radial gaps between sides of the liners can be partly filled by radial projections of elastomeric material of the barrel exterior. The radial projections expand inwardly to seal against a projectile bearing against the inner periphery of the barrel as the projectile is fired from the barrel.

REFERENCES:
patent: 172606 (1876-01-01), Butler
patent: 2635021 (1953-04-01), Alward
patent: 2935912 (1960-05-01), Hartley
patent: 3571962 (1971-03-01), Eig

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