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Match
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8161880 |
Deflagration to detonation transition device
A detonator assembly is provided. The detonator assembly comprises a deflagration to detonation transition body, a first thermally stable secondary explosive contained by the body, and a bulkhead...
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8061273 |
Tubular signal transmission device and method of manufacture
A signal transmission tube may be made by disposing a reactive polymeric material within a confinement tube and leaving a portion of the tube interior unoccupied. The tube may be formed by...
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7739954 |
Connector block with shock tube retention means and flexible and resilient closure member
A connector block for retaining at least one shock tube in signal transfer relationship with a detonator. The connector block comprises a housing (2, 21) having a bore (4, 23) formed therein for...
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7650993 |
Coreless-coil shock tube package system
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 sho...
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7634965 |
Pyrotechnic device with ignition delay
A pyrotechnic device having an ignition delay between a fuse or igniter and a device to be ignited, including a first element which defines a first space that houses at least one fuse or igniter,...
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7434515 |
Signal transmission fuse
A small diameter shock tube of unique internal surface configuration such that the powder loading per meter of tubing can be higher than achieved with conventional shock tube. The outside diameter...
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7421949 |
Rapid deflagrating cord (RDC) ordnance transfer lines
A novel transfer ordnance line and novel end fittings for the transfer line for use in space vehicles, aircraft, missile systems and other military applications. The transfer line is a Rapid...
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7246558 |
Rapid deflagration cord (RDC) ordnance transfer lines
A novel transfer ordnance line and novel end fittings for the transfer line for use in space vehicles, aircraft, missile systems and other military applications. The transfer line is a Rapid...
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7197985 |
High-pressure explosive retention device
An apparatus and method for reliably activating explosives includes providing one or more housing sections that define a sealed space. A first explosive element is provided in the sealed space, and...
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7100512 |
Timed pyric chain apparatus, in particular for the ignition of pyrotechnical fireworks
A timed pyric chain apparatus, particularly for the ignition of pyrotechnical fireworks includes a main conduit (2) for a retard fuse (16) the main conduit (2) having lateral branch conduits (5)....
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6834594 |
Tubular gas generator
A gas generator comprises a tubular housing of a pressure-resistant material and a propellant strand which is incorporated in the housing and provided with an envelope. At least one channel is...
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6694886 |
Rigid reactive cord and methods of use and manufacture
The present invention provides a rigid reactive cord such as a detonating cord (10) that includes a core (38) of an energetic material and a rigid non-metal sheath (40) disposed about the core. The...
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6688231 |
Cord-type gas generator
The invention relates to a cord-type gas generator, comprising a solid propellant strand (10) consisting of a gas-generating material, located in a sleeve (12) and a detonation element (18). The...
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6647887 |
Linear ignition fuze with shaped sheath
A linear ignition fuze has a sheath, the inner surface of which has an irregular cross section such that the sheath is capable of forming a gas channel against a single strand core having a...
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6536798 |
Controlling activation of restraint devices in a vehicle
An apparatus for activating a selected one or more restraint devices located in a vehicle is provided. The apparatus reliably and inexpensively activates restraint devices upon the receipt of one...
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6467415 |
Linear ignition system
A linear ignition system for a metal-sheathed linear explosive including in one embodiment the ends of two metal-sheathed linear explosives are connected by a non-electrically conductive sleeve...
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6386085 |
Method and apparatus for explosives assembly
A method for assembling a blast initiation device is provided. The method comprises providing a length of signal transmission line having first and second ends, mounting a tag to the line and...
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6382232 |
Remote triggering system and retrofit kit for thermal-pressure relief devices
A heat-responsive fuse cord is positioned in the proximity of a pressure vessel and is thermally coupled to a thermal-pressure relief device which is in communication with the pressurized contents...
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RE37689 |
Low energy fuse and method of manufacture
A low energy fuse in extruded as a single ply primary tube 1 from a plastic resin blend with particulate energetic material 2 being internally distributed in a manner known per se, said resin blend...
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6272996 |
In-line initiator and firing device assembly
An in-line initiator and firing device assembly includes a shock tube assembly. An in-line initiator is provided for initiating a shock wave along the shock tube assembly, and includes an end...
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6247410 |
High-output insensitive munition detonating cord
A detonating cord has a core of highly brisant PBXN-8 explosive surrounded by an inner braided layer of polyamide yarn, a flexible sealing sleeve of silicone rubber coated with glue, and an outer...
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6006671 |
Hybrid shock tube/LEDC system for initiating explosives
In a non-electric system for initiating explosives, a shock tube is initiated by the detonation of a low-energy detonating cord (LEDC) whose wall has been placed adjacent to an initiation-sensitive...
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5864084 |
Glow in the dark fuse and method for making same
A glow in the dark firework device and a method for making same is disclosed. The firework device (10) includes a body (12) having an outer body surface (14), and a glow in the dark fuse (18)...
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5827994 |
Fissile shock tube and method of making the same
An initiation signal transmission line tube (10a, 10b, 10', etc.), which is effective to transmit an initiation signal therethrough, contains one or more rupture lines (20a, 20b and 20c, etc.) in...
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5721392 |
Pyrotechnic ignition device
The pyrotechnic ignition device of this invention comprises a hollow tubular coiled charge of pyrotechnic sheet material defining an ignition initiation position, the internal diameter of the...
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5540154 |
Non-pyrolizing linear ignition fuse
Linear ignition fuse having an elongated core of non-detonating ignitive material, a longitudinally extending gas channel adjacent to the core for supporting an ignitive reaction which travels...
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5473987 |
Low energy fuse
A non-electric low energy fuse comprises plastics tubing within which there is provided a core loading of mixed particles of a metal or quasi metal fuel and a secondary high explosive, wherein the...
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5285728 |
Successive-actuation device, using pyrotechnic cord
The invention relates to a successive-actuation device of the type including at least one pyrotechnic cord and a trigger for actuating the operation thereof. Advantageously, the invention contains...
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5225621 |
Process for producing a jacketed fuse and fuse product
A fuse having a protective jacket is utilized, for example, in petroleum exploration at large depths where the fuse must withstand high temperatures and pressures. The jacket is produced from a...
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5223664 |
Flexible detonating cord
A flexible non destructing detonating cord including an inner sheath (2) of 99.5% pure aluminium or silver which is drawn down to an outer diameter of 0.85 mm so as to compress an NHS explosive...
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5181737 |
Safety apparatus for vehicle occupant
A safety apparatus for a vehicle occupant comprises an airbag which inflates outwardly from a housing into a vehicle occupant compartment. An ignitable material for facilitating outward movement of...
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5101729 |
Low energy fuse
In a low energy fuse, the reactive composition on the inner wall of the tubing is substantially free of a metal fuel or quasi metal fuel and comprises a particulate secondary high explosive and a...
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5020435 |
Fuze
A fuze suitable for connecting detonation initiation means to an explosive charge, such fuze having indicia thereon to indicate the length of the fuze. A method for charging a blasthole, using the...
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5005694 |
System for packaging detonating cord for transport
A detonating cord transport package wherein a continuous length of a metal jacket detonating cord is installed on a plurality of separator-support members such that the detonating cord is formed in...
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5001981 |
Signal transmission tube for initiation of explosives
A plurality of discrete transmission tubes are held in axially extending juxtaposed relation by an outer sheath which coextensively covers the tubes. An axially extending line of weakness is formed...
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4991511 |
Non-disruptive detonating cord
The cord system comprises a relatively thin detonating cord which can be readily bent round small diameter corners and is of low weight per unit length, the cord comprising an outer relatively...
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4917017 |
Multi-strand ignition systems
Linear ignition tube suitable for the ignition of long propellant beds. The tube comprises an elongated tubular member having a ratio of interior diameter to wall thickness of at least 4. The...
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4913053 |
Method of increasing the detonation velocity of detonating fuse
A method of increasing the detonation velocity of explosive detonating fuse by subjecting it to elevated temperatures and pressure is disclosed. Detonation fuse is subjected to temperature in the...
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4838165 |
Impeded velocity signal transmission line
Blasting signal transmission tube comprising a length of elongated flexible hollow tube and a self-oxidizing combustible substance disposed within the tube for transmitting a blasting signal along...
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4819612 |
Self-heating container
A container capable of heating its content when ignited has a container containing Japanese sake, coffee, soup or the like and an exothermic material storage chamber projected into the container. A...
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4817673 |
Fuse tube with reinforcing element
A reinforced tube suitable for use in the construction of an explosive signal transmission device. The tube is constructed from a low yield strength plastic material into which has been deposited...
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4756250 |
Non-electric and non-explosive time delay fuse
Non-electric and non-explosive fuse-like initiating device which makes use of a process of propagation of a gaseous plasma generated by deflagration of a pyrotechnic material deposited as a layer...
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4716832 |
High temperature high pressure detonator
For use in a perforating gun assembly typically lowered on an electric wireline or on tubing into a wellbore exposed to high pressure and high temperature, an apparatus is set forth which includes...
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4671178 |
Low energy fuses
A low energy fuse which has a tubular casing that is deformed at at least one end and intermediate its ends to form valve formations. Each valve formation defines a valve that is normally...
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4660474 |
Percussion or impact wave conductor unit
A device for application in the art of blasting, by the use of nonelectric devices, and the new concept that employs pyrotechnic mixtures and combinations thereof which are distributed in granular...
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4649822 |
Method and apparatus for deactivating a partially flooded perforating gun assembly
A method and apparatus for deactivating a partially flooded perforating gun assembly utilizes a fuse which extends downwardly to the lower end of a perforating gun section and is then associated...
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4608113 |
Waterproof quick match and apparatus and method of forming same
The present invention is an improved waterproof quick match and apparatus and method of making same in which the loose fitting central core (fuse) covering is made of a plastic coated paper and...
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4542695 |
Contoured configured detonating cord and detonator
A contoured configured detonating cord and detonator is incorporated into a ember during manufacture thereof. The member may be a rocket motor which is disposed to be broken into small fragments...
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4488486 |
Low brisance detonating cord
A low brisance detonating cord including an outer case of explosive material of predetermined detonating velocity and an inner core of explosive material concentrically carried in the outer core....
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4432268 |
Detonation cut-off device
A passive detonation cut-off device for a solid line of explosives operates by directionally controlling the detonation pressure of an accidental detonation wave of an explosives line and by using...
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