Method and apparatus for firearm sound suppression

Abstract

The method of the current invention provides means to maximize firearm suppressor efficiency with regards to maximizing sound attenuation while minimizing physical size and weight and minimizing firearm backpressure and manufacturing cost. In the preferred embodiment, the device consists of a closed cylinder within which is a separate closed inner cylinder of a lesser diameter and length. Holes coaxial with the assembly provide a means to attach the device to the firearm muzzle at the proximal planar end of the device, for the projectile and ejection mass to enter the proximal end of the inner cylinder and for the projectile and ejection mass to exit the device at the distal end of the device.

1 . A suppressor for use with a firearm, said suppressor comprising:
 a) an outer container defining an outer surface and an inner surface having openings in at least two terminal ends and defining a volume,
 i) the first and second ends of which have through holes that are axially aligned to define a bullet flight path,
 (1) the first end of which is selectively fashioned to mount near the firearm muzzle and 
 (2) the second end of which allows the bullet exit; 
 
   b) a smaller inner container defining an outer surface and an inner surface having openings in at least two terminal ends and defining a volume,
 i) the first and second ends of which have through holes that are axially aligned to define a bullet flight path, 
 ii) fixed to the second end of the outer container
 (1) extending at least partially within the volume defined by the outer container with
 (a) the first end of the inner container separated by space from the first end of the outer container and 
 
 (2) the bullet flight path of the inner container collinear to the bullet flight path of the outer container and, 
 (3) excepting the points of contact between the inner container and the second end of the outer container, the inner surface of the outer container and the outer surface of the inner container within the volume of the outer container are separated by space defining a volume between them. 
 
   
     
     
         2 - 7 . (canceled) 
     
     
         8 . The suppressor of  claim 1  wherein the distinct structures of the smaller inner container and the distal second cap are unified as a single body wherein the aperture of the distal second cap is defined by the open distal end of smaller inner container. 
     
     
         9 . The suppressor of  claim 1  whereas, excepting discrete points of contact between the inner container and the outer container, the inner surface of the outer container and the outer surface of the inner container within the volume of the outer container are separated by space defining a volume between them. 
     
     
         10 . A suppressor for use with a firearm, said suppressor comprising:
 a) an outer container being an open hollow cylinder having two detachable end caps on either end, whereby
 i) both end caps include an aperture that is both sized and positioned to facilitate the passing through of a discharged particle, and 
 ii) the proximal first end cap is selectively fashioned to mount near the firearm muzzle and 
 iii) the distal second end cap to which is additionally attached 
   b) a detachable smaller inner container being a cylindrical body having openings at its two terminal ends whereby
 i) the proximal first end of the smaller inner container includes an aperture that is sized and positioned to facilitate the passing through of a discharged particle and
 (1) is separated by space from the proximal first end cap of the outer container, and 
 
 ii) the distal second end of the smaller inner container which is open and
 (1) is attached to the distal second end cap of the outer container, whereas 
 (2) the cylindrical body of the smaller inner container is contained within the volume of the outer container and 
 (3) excepting the points of contact between the inner container and the second end of the outer container, the inner surface of the outer container and the outer surface of the inner container within the volume of the outer container are separated by space defining a volume between them. 
 
   
     
     
         11 . The suppressor of  claim 10  wherein the distinct structures of the smaller inner container and the distal second cap are unified as a single body wherein the aperture of the distal second cap is defined by the open distal end of smaller inner container. 
     
     
         12 . The suppressor of  claim 10  whereas, excepting discrete points of contact between the inner container the outer container, and excepting the points of contact between the inner container and the second end of the outer container, the inner surface of the outer container and the outer surface of the inner container within the volume of the outer container are separated by space defining a volume between them.