Fluid cartridge powered pellet gun

Abstract

The present disclosure provides a pellet gun that comprises a gun and a cartridge. The cartridge is selectively positionable at the breach end of the barrel and includes an opening configured to selectively hold a pellet. The cartridge is also located inside the pellet gun such that when the cartridge is selectively holding the pellet the pellet is located in the barrel, and is selectively filled with a pressurized gas. The trigger initiates engagement with the cartridge to cause the gas in the cartridge to be exerted against the pellet which is fired through the barrel.

What is claimed is: 
     
         1 . A pellet gun comprising:
 a gun which includes a trigger, and a barrel;   wherein the barrel has a breach end;   a cartridge selectively positionable at the breach end of the barrel;   wherein the cartridge includes an opening configured to selectively hold a pellet;   wherein the cartridge is located inside the pellet gun such that when the cartridge is selectively holding the pellet the pellet is located in the barrel;   wherein the cartridge which is selectively filled with a pressurized gas; and   wherein the trigger initiates engagement with the cartridge that causes the gas in the cartridge to be exerted against the pellet which is fired through the barrel.   
     
     
         2 . The pellet gun of  claim 1 , wherein cartridge is configured to hold one pellet. 
     
     
         3 . The pellet gun of  claim 1 , further comprising a firing pin that engages the cartridge which fires the pellet. 
     
     
         4 . The pellet gun of  claim 1 , wherein the cartridge is removable from the breach end of the barrel. 
     
     
         5 . The pellet gun of  claim 1 , wherein cartridge is removable from at least a portion of the barrel of the gun. 
     
     
         6 . The pellet gun of  claim 1 , wherein the barrel of the gun includes a barrel liner located in the barrel wherein the barrel is made of aluminum and the barrel liner is made of steel. 
     
     
         7 . The pellet gun of  claim 1 , wherein the cartridge is refillable and reusable by refilling the cartridge with the gas. 
     
     
         8 . The pellet gun of  claim 1 , wherein the gas is selected from the group consisting of nitrogen, carbon dioxide, and air. 
     
     
         9 . The pellet gun of  claim 1 , wherein the gun further includes a receiver, hammer, sear, trigger knuckle, knuckle, breach block, firing pin, lever, and a stock. 
     
     
         10 . The pellet gun of  claim 1 , wherein the cartridge is formed from a tubular body having a pellet plug located at and opening located at one end configured to selectively hold the pellet. 
     
     
         11 . The pellet gun of  claim 1 , wherein the cartridge includes a cartridge tube having a chamber located therein; a firing pin plug that includes a bore disposed there through and configured to receive a valve pin. 
     
     
         12 . The pellet gun of  claim 11 , wherein the firing pin plug couples to the cartridge tube; a seal configured to position about the valve pin and fits in the bore to provide selective sealing between the valve pin and exterior of the cartridge; a plunger coupled to the valve pin and seal engages a spring which provides a bias force against the firing pin plug; wherein the spring also fits in a cavity in a piston head of a piston; a passage opening located in the piston head; wherein the piston also includes a piston rod that extends from the piston and terminates at a piston plug; and an O-ring about the opening to hold the pellet prior to firing. 
     
     
         13 . The pellet gun of  claim 12 , wherein the cartridge is charged with the gas by the gas entering the cartridge through the bore in the firing pin plug; wherein the gas biases the valve pin; the gas then enters a second cavity in the piston head and then through a passage opening which fills the chamber in the cartridge until the chamber is full; wherein the cartridge is configured such that once the chamber is full back pressure and bias from the spring pushes against the plunger, seal, and valve pin to close the opening in the bore of the firing pin plug; wherein the gas in the chamber is in fluid communication with the cavity and the piston head; wherein the piston plug of the piston is configured to block the opening at the pellet plug; and wherein when the chamber is charged. 
     
     
         14 . The pellet gun of  claim 13 , wherein the cartridge is configured that when being actuated by the gun, the valve pin of the cartridge is moved by a firing pin in the gun; wherein the gas located in the cavity of the piston head escapes which causes the piston to move towards the firing pin plug; wherein movement of the piston causes the piston plug to move from the opening in the pellet plug; wherein this causes the gas in the chamber to apply a force against the pellet located in the opening; wherein the force of the gas applied to the opening is greater than back through the bore because the passage between the opening and the bore are not configured to allow enough of the gas to pass through; wherein the O-ring that holds the pellet at the opening is not strong enough to withstand the force of the gas exiting from the chamber which causes the pellet to be projected from the opening; and wherein the piston retracts to react to the bias of the spring which causes the plunger to push the seal against the bore in the firing pin plug to seal the bore. 
     
     
         15 . The pellet gun of  claim 1 , wherein the gun is configured to fire the pellet from the cartridge; wherein the cartridge is positioned into a firing chamber that is in communication with the barrel; wherein the brake block is moved via connection to the knuckle to expose the chamber, which also moves the hammer, to allow insertion of the cartridge into the firing chamber; wherein the brake block and hammer are moved again after the cartridge is inserted into the firing chamber; wherein the hammer is moved to its firing position; wherein the hammer is configured to direct the firing pin to engage the valve pin in the cartridge when the trigger is pressed which causes the sear to release the trigger knuckle from the hammer, which engages the firing pin, which in turn engages the valve pin of the cartridge, which fires the pellet. 
     
     
         16 . A pellet gun comprising:
 a gun which includes a trigger, and a barrel;   wherein the barrel has a breach end;   a cartridge selectively insertable into the gun and directed to the breach end of the barrel;   wherein the cartridge includes an opening configured to selectively hold a pellet;   wherein the cartridge is located inside the pellet gun such that when the cartridge is selectively holding the pellet the pellet is directed toward the barrel; and   wherein the cartridge which is selectively filled with a pressurized gas.   
     
     
         17 . A pellet gun comprising:
 a gun which includes a trigger, and a barrel;   wherein the barrel has a breach end;   a cartridge selectively insertable into the breach end of the gun and directed to the barrel;   wherein the cartridge includes an opening configured to selectively hold a pellet;   wherein the cartridge is coaxially aligned with the barrel;   wherein the cartridge in the gun is selectively filled with a pressurized gas.