DETONATING CAP ASSEMBLY AND CONNECTING BUSHING

摘要

A detonating cap assembly is provided with a fuse-retaining bushing for protecting the charge within the cap from accidental ignition by static charges accumulating on the fuse. The bushing is an elongated semi-conductive plastic member slidably received within the shell of the cap and having a longitudinally extending axial bore for receiving the fuse and providing a stand-off from the charge within the cap. The bushing incorporates a thin rupturable membrane at its innermost end within the stand-off and a side notch adjacent the membrane forming a shunt path extending laterally outwardly from the bore toward said shell for diverting static charge from the fuse toward the shell of the cap.