8results about "Fuse ignition means" patented technology

In an ignition unit for a propellant charge (8), comprising an elongated ignition transfer charge (2) made of propellant powder, through which a free ignition channel (5) runs in its longitudinal direction, and a combustible support tube (3) that surrounds the ignition transfer charge (2) perpendicular to the free ignition channel (5), the ignition transfer charge (2) is formed from a first material which has a glass transition point below -40°C in an observed temperature range of -51°C to +71°C, and the support tube (3) is formed from a second material which does not have a glass transition point below +72°C.

A coreless-coil shock tube package system includes a "coreless" bundle of shock tubing, meaning that the tubing is not wrapped around a spool. The bundle may be a generally cylindrical coil of shock tubing. Optionally, two washer-like end plates abut the ends of the tubing coil for axial support. A self-adhesive tape covering partially covers the coil and end plates. A detonator is attached to one end of the tubing and lies tucked into the coil, through an end plate, for storage and transport. An igniter is attached to the tubing's other end. In use, the detonator is removed from the coil and attached to an explosive device. Then, the package is pulled away from the detonator and explosive, thereby uncoiling the tubing through the end plate for deployment. The igniter is actuated for igniting the shock tubing and activating the detonator and explosive.

Enhanced combustion ignition cord: An ignition cord for the combustion of a propellant charge contained within a cartridge case, said cord consisting of a core comprising a pyrotechnical material and surrounded by a sheath, characterized in that the sheath consists of two concentric cylindrical tubes between which is arranged a free-flowing powdered energy material. The two tubes are made of an inert polymer material or are based on an extruded powdered energy material, or alternatively, one of the tubes may be made of an inert polymer material and the other of an extruded powdered energy material.

The invention discloses a liquid gas energy rock breaking device energy increasing and transduction component which comprises a shell, carbon powder is arranged in the shell, an ignition bridge wire is arranged in the carbon powder, a pre-combustion enhancement layer is sprayed on the surface of the ignition bridge wire, the pre-combustion enhancement layer comprises potassium perchlorate and phenolic resin, and the mass ratio of the potassium perchlorate to the phenolic resin is 9: 1. The ignition bridge wire is led out of the shell through an ignition lead. The porosity of the carbon powder is greatly reduced through compaction treatment, the problems of caking and moisture absorption in a low-temperature (-100 DEG C or below) liquid gas environment are solved, the chemical property stability is improved by 60% or above compared with loose carbon powder, the ignition activity can still be kept under the extreme impact working condition, and the pain point that a traditional material is prone to failure is solved.

The utility model relates to a kind of detonating cord quick connecting device in detonating cord connection technical field, containing the tee joint of main cord insert sleeve part and branch cord insert sleeve part, the outer end inner wall of branch cord insert sleeve part is equipped with snap spring for the tight hoop detonating branch cord, the inner end port of branch cord insert sleeve part is connected with the limiting stop piece corresponding the corresponding end face of detonating branch cord;The detonating cord quick connecting device can improve the connection quality and connection efficiency of detonating cord.

A connector for use with detonation device(s) associated with an explosive detonation system is provided. The connector includes a body, a lower channel, a first side channel, and a second side channel. The body has a first end and a second and is centered on an axis. The first end and the second end are positioned along the axis. The body defining a main channel with a first main end and a second main end. The body main, lower, first side and second side channels are configured to receive first, second, third and fourth detonation device, respectively.

Embodiments of the disclosure are directed to a shock initiation system for initiating shock in a shock tube for demolition. In some embodiments, the shock initiation system comprises a reusable discharge unit and a replaceable shock initiation platform. The reusable discharge unit may comprise a power source, a timer, a switch, and user inputs and may function to store a time, countdown the timer, and generate and transmit an electrical energy to the replaceable shock initiation platform. The shock initiation platform may receive the electrical energy from the discharge unit overpowering a resistor disposed on the shock initiation platform. The resistor may then detonate providing an initiation shock to a proximally disposed shock tube, thereby initiating shock in the shock tube.