US Patent Issued on Dec. 16 for "Firearm cartridge with roll and tapered crimps and related methods for assembly" (Connecticut Inventor)

ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,498,204, issued on Dec. 16.

"Firearm cartridge with roll and tapered crimps and related methods for assembly" was invented by Philip Frick (Clinton, Conn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cartridge for a firearm, including a projectile, a gas check, a case, a propellant, and a primer configured to ignite the propellant. The propellant is arranged between the gas check and an end surface of the case in which the primer is arranged. The case is crimped against the projectile. The case includes an open end with discrete roll crimps distributed along a circumference of the open end. The case further includes tapered crimps between the roll c...