Patent ID: 8028624
Filing Date: 2011-10-04
Classification: F42B,F42D

Abstract:
1. A blasting cartridge comprising: an elongated sleeve extending along an axis A and having a first end and a second end, said first end having a first sleeve closure and an opening for holding a detonator and said second end having a second sleeve closure; and a space between said first sleeve closure and said second sleeve closure for holding a blasting explosive; wherein: said second end is provided with a connector and configured for releasably connecting said second end of said cartridge with a first end of an adjacent cartridge: said elongated sleeve has an essentially cylindrical shape with an outer diameter Do and an inner diameter Di; and wherein said connector is a separate monolithic member comprising: wherein said sleeve at said first end forms a collar configured for receiving and tightly holding said second connecting member while maintaining a predetermined gap between said firing pin and an adjacent detonator.