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US 4,574,703 AGranted
High velocity ammunition sabot
AssigneeOlin Corporation
InventorHenry J. Halverson
Life of this patent
Estimating the term…
Abstract
A high velocity ammunition sabot of brittle material which has sufficient strength to withstand the forces of being launched from a rifled gun barrel but which fragments almost immediately upon exit from the barrel due to centrifugal forces. A polyetherimide material is preferred, although materials of equivalent properties could be used.
Claims11
A small caliber spin stabilized, frangible discarding sabot projectile comprising:
- a hard metallic armor-penetrator subcaliber core;
- and
- a cylindrical sabot having a central recess in a front end thereof surrounding a rear portion of said penetrator and having a solid base portion behind said core, said sabot being made of a plastic material with an Izod impact strength of less than 12 ft. lbs./in. of notch when tested under ASTM Test Method D256, a compressive strength of at least 15,000 psi when tested under ASTM Test Method D695, a shear strength of at least 12,000 psi when tested under ASTM Test Method D732 and a tensile strength of at least 12,000 psi when tested under ASTM Test Method D1708.
Dependencies are inferred from the claim text.