Kinetic delay operating system for recoil firearms

Abstract

A gun includes a kinetic delay to reduce total recoil energy transferred to a shooter and extend the time of the recoil impulse to reduce felt recoil and increase controllability. In one embodiment, a bolt of a gun is longitudinally separated from a bolt carrier of the gun such that there is a delay between firing the gun and the bolt longitudinally impacting the bolt carrier. In one embodiment, the barrel is longitudinally separated from the bolt carrier such that the barrel longitudinally impacts the bolt carrier before the barrel longitudinally impacts a barrel stop of the gun when the gun is fired. In one embodiment, a locking bolt includes a bolt pin extending through a bolt pin slot in the bolt carrier and the bolt pin slot is elongated such that the bolt pin does not contact either end of the bolt pin slot when the gun is cycled.

1 - 20 . (canceled) 
     
     
         21 . A gun comprising:
 a barrel extending longitudinally and comprising a muzzle at a forward end thereof;   a bolt biased toward a forward position of the bolt wherein the bolt contacts the barrel; and   a bolt carrier configured to convey the bolt to a rear position of the bolt when the gun is fired and return the bolt to the forward position of the bolt; wherein:
 the bolt is longitudinally separated from the bolt carrier such that the bolt moves rearward relative to the bolt carrier to impact the bolt carrier longitudinally when the gun is fired. 
   
     
     
         22 . The gun of  claim 21 , wherein:
 the bolt comprises a cam pin extending radially outward from the bolt;   the bolt carrier comprises a helical cam pin slot configured to receive the cam pin and rotate the bolt during cycling of the gun to unlock and lock the bolt to the barrel, said helical cam pin slot extending longitudinally beyond the cam pin such that the cam pin does not contact a front or a rear of the helical cam pin slot.   
     
     
         23 . The gun of  claim 21 , wherein:
 the gun further comprises a receiver;   the barrel is configured to move longitudinally rearward relative to the receiver when the gun is fired;   the barrel is biased toward a forward position thereof;   the barrel comprises a barrel shoulder rearward of the muzzle;   the gun further comprises a barrel stop configured to limit rearward longitudinal travel of the barrel relative to the receiver by contacting the barrel stop of the barrel when the barrel moves rearward when the gun is fired;   the bolt travels longitudinally rearward from the forward position with the barrel when the gun is fired until the bolt does not contact the barrel;   the barrel shoulder is longitudinally separated from the barrel stop by a first predetermined distance; and   the bolt is longitudinally separated from the bolt carrier by a second predetermined distance less than the first predetermined distance.   
     
     
         24 . The gun of  claim 23 , wherein:
 the barrel comprises a barrel extension and a barrel tube;   the barrel tube is affixed to the barrel extension when the gun is assembled;   the barrel tube is configured to extend longitudinally forward from the barrel extension; and   the bolt contacts the barrel extension.   
     
     
         25 . The gun of  claim 23 , wherein:
 the barrel stop is integral with the receiver; and   when fired, the bolt longitudinally impacts the bolt carrier before the barrel shoulder longitudinally impacts the barrel stop.   
     
     
         26 . The gun of  claim 23 , wherein:
 the gun further comprises a bolt spring configured to bias the bolt longitudinally forward relative to the bolt carrier; and   the gun further comprises an action spring configured to bias the bolt carrier forward which biases the bolt to the forward position of the bolt and the barrel to the forward position of the barrel.   
     
     
         27 . The gun of  claim 23 , wherein:
 prior to firing the gun, the bolt is in the forward position thereof;   prior to firing the gun, the bolt carrier is in the forward position thereof; and   prior to firing the gun, the barrel is in the forward position thereof.   
     
     
         28 . The gun of  claim 23 , wherein:
 a rear position of the barrel is when the barrel shoulder is against the barrel stop.   
     
     
         29 . The gun of  claim 23 , wherein:
 a rear position of the barrel is when the barrel shoulder is against the barrel stop; and   after firing, the bolt contacts the barrel as the bolt pushes the barrel from the rear position of the barrel to the forward position of the barrel.   
     
     
         30 . The gun of  claim 23 , wherein:
 the gun further comprises a trigger configured to receive input from a user to fire the gun; and   the gun will only fire in response to receiving input from the user at the trigger when a round of ammunition is in the barrel and the bolt is in the forward position;   
     
     
         31 . The gun of  claim 30 , wherein:
 the gun further comprises a magazine configured to provide the round of ammunition to the barrel when the gun is fired; and   the gun further comprises a butt stock extending rearward from the receiver when the gun is assembled.   
     
     
         32 . A gun comprising:
 a receiver;   a barrel biased toward a forward position thereof, wherein:
 the barrel is configured to move longitudinally rearward relative to the receiver when the gun is fired, 
 the barrel comprises a muzzle at a forward end thereof, and 
 the barrel comprises a barrel shoulder rearward of the muzzle; 
   a barrel stop configured to limit rearward longitudinal travel of the barrel relative to the receiver by contacting the barrel shoulder of the barrel when the barrel moves rearward when the gun is fired;   a bolt biased toward a forward position thereof, wherein:
 the bolt contacts the barrel when the bolt is in the forward position, and 
 the bolt travels longitudinally rearward from the forward position with the barrel when the gun is fired until the bolt does not contact the barrel; and 
   a bolt carrier configured to convey the bolt to a rear position of the bolt when the gun is fired and return the bolt to the forward position of the bolt; wherein:
 the barrel shoulder is longitudinally separated from the barrel stop by a first predetermined distance when the barrel is in a forward position of the barrel; 
 the barrel is longitudinally separated from the bolt carrier by a second predetermined distance less than the first predetermined distance when the bolt carrier is in a forward position thereof and the barrel is in the forward position; 
 a rear position of the barrel is when the barrel shoulder is against the barrel stop; and 
 after firing, the bolt contacts the barrel as the bolt pushes the barrel from the rear position of the barrel to the forward position of the barrel. 
   
     
     
         33 . The gun of  claim 32 , wherein:
 the barrel comprises a barrel extension and a barrel tube;   the barrel tube is affixed to the barrel extension when the gun is assembled; and   the barrel tube is configured to extend longitudinally forward from the barrel extension; and   the bolt contacts the barrel extension.   
     
     
         34 . The gun of  claim 32 , wherein:
 the barrel stop is integral with the receiver; and   when fired, the barrel longitudinally impacts the bolt carrier before the barrel shoulder longitudinally impacts the barrel stop.   
     
     
         35 . The gun of  claim 32 , wherein:
 the bolt comprises a cam pin extending radially outward from the bolt; and   the bolt carrier comprises a helical cam pin slot configured to receive the cam pin and rotate the bolt during cycling of the gun to unlock and lock the bolt to the barrel, said helical cam pin slot extending longitudinally beyond the cam pin such that the cam pin does not contact a front or a rear of the helical cam pin slot.   
     
     
         36 . The gun of  claim 32 , wherein:
 the gun further comprises an action spring configured to bias the bolt carrier forward which biases the bolt to the forward position of the bolt and the barrel to the forward position of the barrel.   
     
     
         37 . The gun of  claim 36 , wherein:
 the gun further comprises a bolt spring configured to bias the bolt longitudinally forward relative to the bolt carrier.   
     
     
         38 . The gun of  claim 32 , wherein:
 prior to firing the gun, the bolt is in the forward position thereof;   prior to firing the gun, the bolt carrier is in the forward position thereof; and   prior to firing the gun, the barrel is in the forward position thereof.   
     
     
         39 . The gun of  claim 32 , wherein:
 the gun further comprises a trigger configured to receive input from a user to fire the gun; and   the gun will only fire in response to receiving input from the user at the trigger when a round of ammunition is in the barrel and the bolt is in the forward position.   
     
     
         40 . The gun of  claim 32 , wherein:
 the gun further comprises a magazine configured to provide a round of ammunition to the barrel when the gun is fired; and   the gun further comprises a butt stock extending rearward from the receiver when the gun is assembled.