Primer diffuser for polymer ammunition cartridges

Abstract

The present invention provides a diffuser cup or ring adapted to hold a primer used in an ammunition cartridge comprising a bottom surface sized to fit in a primer recess for an ammunition cartridge; a diffuser aperture positioned through the bottom surface and aligned with a flash hole; a cup wall attached to the bottom surface and extending away from the bottom surface; and an interior cavity bordered by the cup wall and the bottom surface and sized to frictionally fit a primer.

1 - 11 . (canceled) 
     
     
         12 . A diffuser cup adapted to hold a primer used in an ammunition cartridge comprising:
 a diffuser comprising a bottom surface sized to fit in a primer recess for an ammunition cartridge; and a diffuser aperture positioned through the bottom surface and aligned with a flash hole; and   a cylinder comprising a cup wall sized to frictionally fit a primer and fit into a primer recess, wherein the cup wall is configured to rest on the bottom surface and extending away from the bottom surface.   
     
     
         13 . The diffuser cup of  claim 12 , further comprising an adhesive applied to the bottom surface to contact a primer. 
     
     
         14 . The diffuser cup of  claim 12 , further comprising an adhesive applied to the bottom surface to contact the primer recess. 
     
     
         15 . The diffuser cup of  claim 12 , further comprising a primer positioned in the interior cavity. 
     
     
         16 . The diffuser cup of  claim 12 , wherein the diffuser cup comprises a metal, an alloy, a composite or a polymer.