GunClaims
Weekly firearms and ammunition patent grants.
Nov 25, 2025

US12480738 - Valve system for air gun

A valve system utilizes a main valve body with a restricted diameter conduit communicating between a propulsion chamber and rear cavity and a smaller venting valve mechanically actuated to open the rear cavity to atmosphere, thereby causing the main valve body to open to pass pressurized air in the propulsion chamber to an orifice to power a projectile. The orifice has a diameter at least as large as the diameter of the projectile.

The patent describes a valve system for an air gun that includes a main valve body and a mechanically actuated venting valve, allowing pressurized air to propel a projectile through an orifice. It also details a configuration for the air gun that includes a bulk air supply, shot reservoir, pressure regulator, and a valve assembly designed to deliver pressurized gas to the barrel when triggered.

Claim 1

1 . An air gun comprising: a barrel having a volume; a bulk air supply configured to store pressurized gas; a shot reservoir configured to store pressurized gas and provide a pressurized gas supply; a pressure regulator configured to provide the pressurized gas supply to the shot reservoir at a predetermined pressure from the bulk air supply, wherein said predetermined pressure is less than a pressure of the bulk air supply; a valve assembly configured to provide pressurized gas from the shot reservoir to the barrel when triggered, wherein: the valve assembly is the main valve assembly of the air gun; and the shot reservoir has a total air volume from a main valve seat of the valve assembly to the regulator of at least 1.5 times the volume of the barrel. a barrel having a volume; a bulk air supply configured to store pressurized gas; a shot reservoir configured to store pressurized gas and provide a pressurized gas supply; a pressure regulator configured to provide the pressurized gas supply to the shot reservoir at a predetermined pressure from the bulk air supply, wherein said predetermined pressure is less than a pressure of the bulk air supply; a valve assembly configured to provide pressurized gas from the shot reservoir to the barrel when triggered, wherein: the valve assembly is the main valve assembly of the air gun; and the shot reservoir has a total air volume from a main valve seat of the valve assembly to the regulator of at least 1.5 times the volume of the barrel. the valve assembly is the main valve assembly of the air gun; and the shot reservoir has a total air volume from a main valve seat of the valve assembly to the regulator of at least 1.5 times the volume of the barrel.

Google Patents

https://patents.google.com/patent/US12480738

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12480738