Gun recoil converter

Abstract

A recoil converter for reducing the recoil shock of a gun by up to 95 percent is provided with a gun stock prepared to have a shorter length at its rear end by about 1 1/2″ from the intended overall length, a middle bore and two guide holes. A mixed gas chamber absorbs most of the recoil from shooting by having a hybrid tubular body of a stainless steel midsection and an aluminum head and tail sections welded together. The head section has a central hole for receiving a threaded plug to close and adjust the interior volume of the chamber under gas pressure and a side gas port for controllably injecting a predetermined amount of the mixed gas with the plug shifted behind the gas port. A plunger of the gas chamber takes the recoil into the pressurized interior volume.

1 - 8 . (canceled) 
     
     
         9 . A recoil converter for reducing shotgun recoil comprising:
 a gun stock having generally oval cross sections of varying areas, the gun stock having a middle bore having a diameter of about 1″ extending about 4 ⅛″ deep and two guide holes positioned at both sides of and in line with the middle bore each having a diameter of ⅜″ extending about 2 ½″ deep;   a mixed gas chamber having a hybrid tubular body of a stainless steel midsection and an aluminum head and tail section welded together, the aluminum head section having a large central threaded through hole for receiving a threaded plug to close and adjust an interior volume under gas pressure in the gas chamber and a side gas port formed through the head section into a central through hole for controllably injecting a predetermined amount of the mixed gas with the plug shifted behind the gas port, the gas chamber having a plunger including a translating shaft passing through a bushing mounted inside of the tail section of the gas chamber and terminating at an outer end with an internally threaded bore and at the opposite end with an internal shaft for mounting a seal assembly consisting of at least two cup seals and at least a double quad seal for a pressurized translation through compression and expansion of the interior volume of the chamber by the seal assembly in response to a recoil shock and the tail section having an outwardly threaded mounting end;   a main plate shaped to fit onto the end of the stock having a middle chamber mounting bore with a concentric nut relief for receiving the tail section of the gas chamber to fasten it with a hex jam nut and two guide holes positioned at both sides of and in line with the middle mounting bore corresponding in diameter and position to the respective guide holes of the stock so that upon fastening the main plate to the stock using two peripheral long screws the chamber body penetrates into the 1″ middle bore and the outer shaft extending rearward from the surface of the main plate;   a shoulder attachment plate having two stabilizer guides mounted by forward driven screws at the corresponding positions to the guide holes;   a shoulder plate also having a middle shaft screw for operatively connecting the shoulder plate to the shaft of the gas chamber with 1 ½″ of distance to travel against the main plate and two peripheral screws backward driven to extend rearward of the shoulder plate; and   a soft shoulder pad bearing against the shoulder of a shooter and shaped to fit the sides of the shoulder plate and fastened thereto by the backward driven peripheral screws of the shoulder plate.   
     
     
         10 . The recoil converter of claim  1 , wherein the mixed gas chamber is subjected to a measured gas filling with the use of a digital force gauge with load cell to calibrate the actual recoil absorbency of the chamber. 
     
     
         11 . The recoil converter of claim  1 , having a total weight of about 11.4 oz. 
     
     
         12 . The recoil converter of claim  1 , wherein the mixed gas chamber has a diameter of about 1″ extending about 4 ⅛″ deep. 
     
     
         13 . The recoil converter of claim  1 , wherein the midsection of the mixed gas chamber and the plunger shaft are both made of 304 stainless steel while the head section and tail section are both made of 76 series high strength aluminum alloy. 
     
     
         14 . A recoil converter for reducing shotgun recoil comprising:
 a gun stock having generally oval cross sections of varying areas, the gun stock having a middle bore having a diameter and two guide holes positioned at both sides of and in line with the middle bore;   a mixed gas chamber having a hybrid tubular body of a stainless steel midsection and an aluminum head and tail sections welded together, wherein a short concentric tubular wall of the mixed gas chamber forms a stepped transition, a head section having a large central threaded through hole for receiving a threaded plug to close and adjust an interior volume under gas pressure in the mixed gas chamber and a side gas port formed through the head section into a central through hole for controllably injecting a predetermined amount of the mixed gas with the plug shifted behind the gas port, the gas chamber having a plunger including a translating shaft passing through a bushing mounted inside of the tail section of the gas chamber and terminating at an outer end with an internally threaded bore and at the opposite end with an internal shaft for mounting a seal assembly consisting of at least two cup seals for a pressurized translation through compression and expansion of the interior volume of the chamber by the seal assembly in response to a recoil shock and the tail section having an outwardly threaded mounting end;   a main plate machined to fit onto the end of the stock having a middle chamber mounting bore with a concentric nut relief for receiving the tail section of the gas chamber;   a shoulder attachment plate having two stabilizer guides mounted by forward driven screws at the corresponding positions to the guide holes;   a shoulder plate also having a middle shaft screw for operatively connecting the shoulder plate to the shaft of the gas chamber with at least one inch of travel against the main plate and two peripheral screws backward driven to extend rearward of the shoulder plate; and   a soft shoulder pad bearing against the shoulder of a shooter and shaped to fit the sides of the shoulder plate and fastened thereto by the backward driven peripheral screws of the shoulder plate.   
     
     
         15 . The recoil converter of claim  6 , wherein the main plate is fastened with a hex nut and two guide holes are positioned at both sides of and in line with the middle mounting bore corresponding in diameter and position to respective guide holes of the stock so that upon fastening the main plate to the stock using two peripheral long screws the chamber body penetrates into the 1″ middle bore and the outer shaft extending rearward from the surface of the main plate. 
     
     
         16 . The recoil converter of claim  6 , having a total weight of about 11.4 oz.