Abstract: A low brisance energy transmission device comprising an elongated tube containing self-oxidizing material loosely contained therein is provided. The energy transmission device is able to transmit and propagate energy across bends, kinks, knots, crimps or cuts in the tubing.

Abstract: An explosive booster cap containing a confined detonable charge, said confinement providing a high degree of water protection for said detonable charge, but which confinement will, when the booster cap is subjected to a fire or excessive heat, be disrupted to allow for outgassing and burning of the detonable charge without explosion. Confinement of the detonable charge is provided by a thermoplastic plug inserted into the open end of the booster cap. The physical properties of the thermoplastic plug permit the plug to deform when heated to a temperature between the decomposition and initiation temperatures of the explosive. The booster cap is slipped over the detonable end of the blasting cap, the resultant combination providing a substantially enhanced explosive output.

Abstract: An adapter, for attachment to electric blasting circuit leads to an explosive charge, houses an electric blasting cap connected with the blasting circuit for severing the leads immediately after the blast is fired. The adapter comprises a tube which supports the cap and which has a slot cut into and through the tube wall adjacent the explosion end of the supported cap by which the tube is attached to the blasting circuit leads.

Abstract: A low brisance energy transmission device comprising an elongated tube containing self-oxidizing material loosely contained therein is provided. The energy transmission device is able to transmit and propagate energy across bends, kinks, knots, crimps or cuts in the tubing.