COMPOSITE ARTILLERY SHELL CASE Russian patent published in 1997 - IPC

FIELD: ammunition, in particular, design of composite artillery shell cases, can find a wide application in production of composite artillery shell cases with a plastic body. SUBSTANCE: in the known shell case, having a plastic body, metal bottom plate and a retaining ring, the ring in the section located above the bottom plate shoulder and not overlapped by other components, has sealing gasket in the section between the bottom wall and its mating part of the body decreases in thickness to the periphery to a value not exceeding 0.35 of the thickness of the body wall in the section, corresponding to the gasket cut; the bottom plate in the area of contact with the body bottom has one or several ring bosses of a tapered, rectangular or oval profile equal to 0.2 to 0.35 of the body bottom thickness; body under- cutting in the section passing through the plane of the bottom plate open butt end equals 1.00 to 1.20 of the bottom plate wall in the area of the open butt end. EFFECT: improved design. 4 cl, 3 dwg