초록 ▼

A shaped charge has a case, a cap, and an O-ring. The case has first and second ends and a cavity therein. The case first end has a cylindrical first surface that circumferentially surrounds the cavity. The case second end has a bifurcated projection for receiving a portion of detonating cord. The c

A shaped charge has a case, a cap, and an O-ring. The case has first and second ends and a cavity therein. The case first end has a cylindrical first surface that circumferentially surrounds the cavity. The case second end has a bifurcated projection for receiving a portion of detonating cord. The cap also has first and second ends and cavity therein. The cap first end has a cylindrical second surface that circumferentially surrounds the cap cavity. The case and cap first ends matingly receive each other such that the first and second surfaces face each other. The first and second surfaces have respective circumferential grooves that are aligned with each other when the case and cap are assembled together. The grooves receive the O-ring, which retains the case and cap together while permitting the case to rotate relative to the cap. The cap second end is adapted to couple to a shaped charge carrier. The O-ring and groove arrangement provide a seal between the case and the cap and permit the alignment of the bifurcated projection with the shaped charge carrier while maintaining a secure coupling of the shaped charge to the carrier.

대표청구항 ▼

A shaped charge, comprising: p1 (a) a shaped charge case having first and second ends and a cavity therein, said case cavity opening up to said case first end, said case first end having a cylindrical first surface that is circumferential, said first surface having a circumferential groove; (b) a sh

A shaped charge, comprising: p1 (a) a shaped charge case having first and second ends and a cavity therein, said case cavity opening up to said case first end, said case first end having a cylindrical first surface that is circumferential, said first surface having a circumferential groove; (b) a shaped charge cap having first and second ends and a cavity therein, said cap cavity opening up to said cap first end, said cap first end having a cylindrical second surface that is circumferential, said second surface having a circumferential groove, said cap second end being adapted to couple to a shaped charge carrier; (c) elastomeric seal means fitted inside of said first surface groove; (d) said first surface groove having a depth such that when said seal means is fitted into said first surface groove a portion of said seal means protrudes from said first surface; (e) said case and said cap being assembled together to form an enclosed cavity from said case and cap cavities by one of said first ends matingly receiving the other of said first ends such that during assembly one of said first or second surfaces slides over the other of said first or second surfaces, the assembled case and cap forming a single cavity from said case cavity and said cap cavity, when said case and said cap are assembled together said first and second surfaces face one another and said first surface groove is aligned with said second surface groove, with said portion of said seal means that protrudes from the first surface being received by said cap groove; (f) said seal means lies in a plane which is perpendicular to said first and second surfaces; (g) said seal means retains said cap and said case together while allowing said case to rotate relative to said cap and while providing a circumferential seal between said case and said cap; (h) said cap second end is threaded so as to be adapted to screw into a threaded opening on a shaped charge carrier; (i) said case second end has a projection means projecting from said second end, said projection means being bifurcated to form a slot for receiving a portion of a length of detonating cord, said projection means adapted to receive retaining means for retaining said detonating cord in said slot.