Apr 22, 2025

US12281865 - Mechanical velocity enhancement assembly

A supplemental propulsion system for a weapon used to fire a projectile includes a barrel and chamber to hold a projectile round. A translating pressure tank surrounds a portion of the barrel, and the pressure tank is configured to translate along the barrel. A recoil spring assembly includes a spring and a pressure plate downstream of the chamber for holding the projectile round. The pressure tank is coupled to the pressure plate such that the spring is configured to stretch upon firing of the projectile and translate the pressure tank along a length of the barrel. The barrel includes a first port configured to selectively align with a first tank port during translation, for the discharge of pressurized gas from the pressure tank. The discharge of pressurized gas occurs rearward of the projectile as it passes through the barrel after firing.

Inventors: Eddie L Brooks
Filing date: 2023-03-08

firearmammunitionpropulsionmechanism

The patent describes a supplemental propulsion system for firearms that utilizes a translating pressure tank and a recoil spring assembly to enhance projectile velocity. The system allows for the discharge of pressurized gas rearward of the projectile as it moves through the barrel, improving overall firing efficiency.

Claim 1

A supplemental propulsion system for a weapon used to fire a projectile comprising: a barrel aligned with a chamber in the weapon, the chamber used to hold a projectile round; a pressure tank surrounding a portion of the barrel, the pressure tank configured to translate along the barrel; a recoil spring assembly including a spring and a pressure plate downstream of the chamber holding the projectile round, the pressure tank coupled to the pressure plate, the spring configured to stretch upon firing of the projectile and translate the pressure tank along a length of the barrel; wherein the barrel includes a first port, the first port selectively aligning with a first tank port during translation for the discharge of pressurized gas from the pressure tank; and wherein the discharge of pressurized gas occurs rearward of the projectile as it passes through the barrel after firing. a barrel aligned with a chamber in the weapon, the chamber used to hold a projectile round; a pressure tank surrounding a portion of the barrel, the pressure tank configured to translate along the barrel; a recoil spring assembly including a spring and a pressure plate downstream of the chamber holding the projectile round, the pressure tank coupled to the pressure plate, the spring configured to stretch upon firing of the projectile and translate the pressure tank along a length of the barrel; wherein the barrel includes a first port, the first port selectively aligning with a first tank port during translation for the discharge of pressurized gas from the pressure tank; and wherein the discharge of pressurized gas occurs rearward of the projectile as it passes through the barrel after firing.

Google Patents

https://patents.google.com/patent/US12281865

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12281865