Jul 22, 2025

US12366423 - Fuel powered paintball marker

A fuel powered paint marker having a first stage and a second stage comprising: a housing; a combustion chamber; a piston; a compression chamber; a fuel system; an oxidizing system; an oxidizing agent; a fuel assembly included in the fuel system; a separation assembly included in the fuel system and separating the oxidizing agent from the fuel assembly in the first stage; a bolt drive system; a fuel nozzle included in the fuel system for injecting fuel into the combustion chamber during the second stage; and, an ignition for igniting the fuel and oxidating agent in the combustion chamber driving the piston forward and compressing a gas in the compression chamber thereby ejecting a projectile wherein the fuel and oxidizing agent are separated during the first stage and mixed in the combustion chamber.

The patent describes a fuel-powered paintball marker that operates in two stages, utilizing a combustion chamber and a piston to eject projectiles. It features a fuel system that separates the fuel and oxidizing agent during the first stage and combines them for ignition in the second stage, driving the piston to compress gas and propel the projectile.

Claim 1

  1. A fuel powered paint marker having a first stage and a second stage comprising: a housing having a cavity defined in the housing; a piston received in the housing; a combustion chamber defined by the housing and a first side of the piston; a compression chamber defined by the housing and a second side of the piston; a fuel system carried by the housing and in fluid communications with the combustion chamber; an oxidizing system included in the fuel system having an oxidizing input for receiving an oxidizing agent wherein the oxidizing agent enters the oxidizing system during the first stage; an oxidizing output included in the oxidizing system; a fuel assembly included in the fuel system having a fuel input wherein fuel enters the fuel assembly during the first stage; a separation assembly included in the fuel system and separating the oxidizing agent from the fuel assembly in the first stage; a bolt drive system carried by the housing having a bolt piston, bolt drive rod and a bolt; a first oxidizing input included in the bolt drive system in fluid communication with the oxidizing output wherein the oxidizing agent is inserted into a bolt piston chamber driving the bolt piston forward thereby closing the bolt; a second oxidizing input included in the bolt drive system in fluid communication with the oxidizing output wherein the oxidizing agent is inserted into a bolt reservoir chamber during the first stage and the oxidizing agent is injected into the combustion chamber during the second stage; a fuel nozzle included in the fuel system for injecting fuel into the combustion chamber during the second stage; and, an ignition for igniting the fuel and oxidizing agent in the combustion chamber driving the piston forward and compressing a gas in the compression chamber thereby ejecting a projectile. a housing having a cavity defined in the housing; a piston received in the housing; a combustion chamber defined by the housing and a first side of the piston; a compression chamber defined by the housing and a second side of the piston; a fuel system carried by the housing and in fluid communications with the combustion chamber; an oxidizing system included in the fuel system having an oxidizing input for receiving an oxidizing agent wherein the oxidizing agent enters the oxidizing system during the first stage; an oxidizing output included in the oxidizing system; a fuel assembly included in the fuel system having a fuel input wherein fuel enters the fuel assembly during the first stage; a separation assembly included in the fuel system and separating the oxidizing agent from the fuel assembly in the first stage; a bolt drive system carried by the housing having a bolt piston, bolt drive rod and a bolt; a first oxidizing input included in the bolt drive system in fluid communication with the oxidizing output wherein the oxidizing agent is inserted into a bolt piston chamber driving the bolt piston forward thereby closing the bolt; a second oxidizing input included in the bolt drive system in fluid communication with the oxidizing output wherein the oxidizing agent is inserted into a bolt reservoir chamber during the first stage and the oxidizing agent is injected into the combustion chamber during the second stage; a fuel nozzle included in the fuel system for injecting fuel into the combustion chamber during the second stage; and, an ignition for igniting the fuel and oxidizing agent in the combustion chamber driving the piston forward and compressing a gas in the compression chamber thereby ejecting a projectile.

Google Patents

https://patents.google.com/patent/US12366423

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12366423

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