US Patent Issued to Raytheon on Sept. 23 for "Integrated driving band obturator for artillery" (Arizona Inventor)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,422,234, issued on Sept. 23, was assigned to Raytheon Co. (Arlington, Va.).

"Integrated driving band obturator for artillery" was invented by Frederick B. Koehler (Tucson, Ariz.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A projectile that includes an artillery shell having a casing that defines a surface is provided. The projectile has an obturator that includes an obturator first material layer on the casing surface and an obturator second material layer on the obturator first material layer. The obturator also has an obturator third material layer on the obturator second material layer. The projectile also has a driving band that includes a drivi...