Detonating Cord Retaining Device

Abstract

An apparatus and method for connecting a detonating cord with a shaped charge.

What is claimed is: 
     
         1 . A detonating cord retainer comprising:
 a base having a bottom end and a top end;   a bore extending into the base from the bottom end;   an aperture in the top end of the base adapted to allow detonation communication from the top end of the base into the bore;   a first retention arm having an inner face extending substantially orthogonally from the top side of the base;   a second retention arm having an inner face extending substantially orthogonally from the top side of the base; and   wherein the inner face of the first retention arm is substantially parallel to and facing the inner face of the second retention arm.   
     
     
         2 . The detonating cord retainer of  claim 1  wherein the inner face of the first retention arm has a retention nub distal from the base extending toward the second retention arm; and
 the first retention arm and second retention arm are adapted to retain a detonating cord in proximity to the aperture. 
 
     
     
         3 . The detonating cord retainer of  claim 2  wherein the inner face of the second retention arm has a retention nub distal from the base extending toward the first retention arm. 
     
     
         4 . The detonating cord retainer of  claim 1  further comprising a circumferential ridge in the bore adapted to engage a corresponding groove in a shaped charge case. 
     
     
         5 . The detonating cord retainer of  claim 1  further comprising a circumferential groove in the bore adapted to engage a corresponding ridge in a shaped charge case. 
     
     
         6 . The detonating cord retainer of  claim 1  wherein the aperture extends from the top end of the body to the bore. 
     
     
         7 . The detonating cord retainer of  claim 1  wherein the bore extends through a portion of the top end of the body to form the aperture. 
     
     
         8 . A detonating cord retainer comprising:
 a base having a bottom end and a top end;   a bore extending into the base from the bottom end;   an aperture in the top end of the base adapted to allow detonation communication from the top end of the base into the bore;   a first retention arm having extending substantially orthogonally from the top side of the base and having an end distal from the base; and   a second retention arm having an inner face extending substantially orthogonally from the top side of the base and having an end distal from the base.   
     
     
         9 . The detonating cord retainer of  claim 8  wherein the end of the first retention arm has a retention nub extending toward the second retention arm. 
     
     
         10 . The detonating cord retainer of  claim 9  wherein the end of the second retention arm has a retention nub extending toward the first retention arm. 
     
     
         11 . A shaped charge comprising:
 a case with an apex end and an explosive end and an axis;   a substantially conical liner located within and coaxially with the case;   an explosive material located between the liner and the case;   a detonating cord retainer adapted to interface with the apex end of the case further comprising:
 a base having a bottom end and a top end; 
 a bore extending into the base from the bottom end; 
 an aperture in the top end of the base adapted to allow detonation communication from the top end of the base into the bore; 
 a first retention arm having an inner face extending substantially orthogonally from the top side of the base; 
 a second retention arm having an inner face extending substantially orthogonally from the top side of the base; and 
 wherein the inner face of the first retention arm is substantially parallel to and facing the inner face of the second retention arm. 
   
     
     
         12 . The detonating cord retainer of  claim 11  wherein the inner face of the first retention arm has a retention nub distal from the base extending toward the second retention arm; and
 the first retention arm and second retention arm are adapted to retain a detonating cord in proximity to the aperture. 
 
     
     
         13 . The detonating cord retainer of  claim 12  wherein the inner face of the second retention arm has a retention nub distal from the base extending toward the first retention arm. 
     
     
         14 . The detonating cord retainer of  claim 11  further comprising a circumferential ridge in the bore adapted to engage a corresponding groove in a shaped charge case. 
     
     
         15 . The detonating cord retainer of  claim 11  further comprising a circumferential groove in the bore adapted to engage a corresponding ridge in a shaped charge case. 
     
     
         16 . The detonating cord retainer of  claim 11  wherein the aperture extends from the top end of the body to the bore. 
     
     
         17 . The detonating cord retainer of  claim 11  wherein the bore extends through a portion of the top end of the body to form the aperture.