US12305944 - Barrel and launching device as well as method for firing off a projectile

The patent describes a barrel designed for a launching device that features a cross-section shaped as a curve of constant width, which enhances the stability of projectiles during launch. It also includes a method for firing a rotation-stabilized projectile that matches the barrel’s unique cross-sectional geometry.

Claim 1

1. A combination of a barrel for a launching device and a projectile to be launched therefrom with a propellant charge the barrel being provided with a cross-section in a form of a curve of constant width, where the curve of constant width of the barrel is defined by an expression the barrel being provided with a cross-section in a form of a curve of constant width, where the curve of constant width of the barrel is defined by an expression r ⁡ ( φ ) = D 2 + C 2 ⁢ sin ⁡ ( n ⁢ φ ) , where D is a core diameter of the barrel, C is a rotation diameter of the barrel, φ is an angle and n is an odd integer greater than or equal to 3, and the projectile being made with a cross-section in a form of a curve of constant width of the projectile, where the curve of constant width of the projectile is defined by the expression the projectile being made with a cross-section in a form of a curve of constant width of the projectile, where the curve of constant width of the projectile is defined by the expression r ⁡ ( φ ) = F 2 + E 2 ⁢ sin ⁡ ( n ⁢ φ ) , where E is a rotation diameter E for a geometry of the projectile, and F is a core diameter for the geometry of the projectile.

Google Patents

https://patents.google.com/patent/US12305944

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12305944