Projectile and firearm system

US12111140B2 · kind B2 · utility

Inventors

• Paul K. Maurer · Nunnelly, US
• Brett E. Maurer · Rochester, US
• Todd F. Maurer · Franklin, US
• Paul Della Torre · Nunnelly, US
• Robert Tuchrelo · Williamson, US
• Nathan E. Smith · Hamlin, US
• Richard T. Aab · Fairport, US

Key dates

• Filing date: May 12, 2022
• Grant date: Oct 8, 2024
• Expiry date: May 12, 2042

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F42B5/067
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A cartridge is disclosed with a casing and a projectile, wherein external ballistic stability is provided by a center of pressure of the projectile being rearward of a center of mass of the projectile. The projectile includes flight control surfaces that cooperate with the bore of a barrel without requiring rifling or sabots. The projectile can include fin configurations that cooperate with the bore to form a gas check.