Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 7921776 | Detonating cord with protective jacket This invention relates to a detonating cord (10) having a core (12) of reactive material and a composite jacket around the core, and the method of its manufacture. The composite jacket includes an interior jacket (14) in contact with the core an... | 04/12/2011 |
| 7913624 | Explosive matrix assembly An explosive matrix assembly is provided in which a single detonating cord is configured into a first set of at least five parallel sets of paired portions lying in the same plane, with adjacent parallel pairs being spaced about two inches apart. The detonating cord... | 03/29/2011 |
| 7699004 | Direct load, detonator-less connector for shock tubes The connector block allows the transmission of the shock wave that travels along the donor tube (1) to several receiver tubes (4), setting between them a delay device (6) with its corresponding pyrotechnic delay formula (8), and an explos... | 04/20/2010 |
| 7661366 | Signal conducting detonating cord A downhole perforating device includes: a perforating gun having incorporated therein at least two shape charges; an elongated detonating cord incorporated with the perforating gun and extending along a length of the perforating gun, the detonating cord including: a... | 02/16/2010 |
| 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 of the tube is less than 0.10″, preferably 0.085″ with inner and ... | 10/14/2008 |
| 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 Deflagration Cord (RDC) hermetically encapsulated in a metal tubing. The me... | 07/24/2007 |
| 7162957 | Redundant signal transmission system and development method Percussive signal transmission tubes, of contrasting color, are joined along adjacent longitudinally extending portions by an adhesive bead of polymeric material. The tubes can be separated in the field and are provided on spools without any sheath. A small diameter... | 01/16/2007 |
| 7086335 | Redundant signal transmission system and deployment means Percussive signal transmission tubes, of contrasting color, are joined along adjacent longitudinally extending portions by an adhesive bead of polymeric material. The tubes can be separated in the field and are provided on spools without any sheath. A small diameter... | 08/08/2006 |
| 6979022 | Flexible inflator with co-extruded propellant and moisture barrier A flexible inflator for an inflation assembly and related gas generating propellant compositions are provided. The flexible inflator includes at least one elongated strand of a propellant co-extruded with a moisture barrier. The propellant compositions are adapted f... | 12/27/2005 |
| 6880465 | Accumulated detonating cord explosive charge and method of making and of use of the same An initiator (14c) for a secondary explosive receptor charge is provided by forming a length of detonating cord (14) into a helical coil containing a plurality of windings with a cut-off barrier provided by, e.g., a separating rib (46) be... | 04/19/2005 |
| 6739265 | Explosive device with assembled segments and related methods A segmented explosive device capable of producing a shock wave front upon being exploded by a detonation impulse generated by a selectively operable control device and communicated to the explosive device by a transmission line coupled between the control device and... | 05/25/2004 |
| 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 cord (10) is sufficiently rigid so that it can be inserte... | 02/24/2004 |
| 6622630 | Booster A booster to relay a detonation train from a detonating cord to another booster includes an explosive and a shell. The shell has an open end to receive an end of the detonating cord and an indented closed end that is adapted to form a projectile to strike... | 09/23/2003 |
| 6578490 | Ignitor apparatus An ignitor for setting off an incendiary device. The ignitor includes a container into one end of which is placed a charge of thermite. A shock tube is inserted into the other end of the container and when initiated, sends a shock wave into the container ... | 06/17/2003 |
| 6508176 | Accumulated detonating cord explosive charge and method of making and of use of the same An initiator (14c) for a secondary explosive receptor charge is provided by forming a length of detonating cord (14) into a helical coil containing a plurality of windings with a cutoff barrier provided by, e.g., a separating rib (46) between adjacent win... | 01/21/2003 |
| 6499405 | Connection and delay pyrotechnic device A pyrotechnic device of connection and delay between detonating cords and/or between an igniter and detonating cords, including a cavity divided up in two parts, the internal walls of which are coated with a very flammable material; a means for blocking o... | 12/31/2002 |
| 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 leaving a gap between the ends, and a Pyrofuze.RTM. bridge co... | 10/22/2002 |
| 6439121 | Perforating charge carrier and method of assembly for same A tubular charge holder assembly for a perforating gun made of a tube having a plurality of pairs of diametrically opposed openings. The pairs of openings are formed over a length of the tube, wherein the each pair has a larger and a smaller opening. A sh... | 08/27/2002 |
| 6425332 | Low-energy shock tube connector system A shock tube connector system comprises a substantially cylindrical detonator having a longitudinal axis a block body receiving the detonator therein, and an end cap. The detonator includes an axisymmetric exterior shell including a cylindrical main secti... | 07/30/2002 |
| 6349648 | Detonator for shock tube connector system A shock tube connector system comprises a substantially cylindrical detonator having a longitudinal axis a block body receiving the detonator therein, and an end cap. The detonator includes an axisymmetric exterior shell including a cylindrical main secti... | 02/26/2002 |
| 6347566 | Method of making a signal transmission fuse A signal transmission fuse is made of a tube (36) which encases a support tape (14) having a reactive coating (18') which is adhered to one side of the tape by a binder. A method of making the signal transmission fuse includes depositing on the support ta... | 02/19/2002 |
| 6305287 | Low-energy shock tube connector system A shock tube connector system comprises a substantially cylindrical detonator having a longitudinal axis a block body receiving the detonator therein, and an end cap. The detonator includes an axisymmetric exterior shell including a cylindrical main secti... | 10/23/2001 |
| 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 braided layer of polyamide yarn adhered to the sealing slee... | 06/19/2001 |
| 6196131 | Shock tube initiator tip encased in a non-conductive material The present invention provides a non-electric initiator tip for use with a non-electric shock tube initiation device. The initiator tip of the present invention comprises an inner electrode, an outer electrode, and a conductive component electrically coup... | 03/06/2001 |
| 6170399 | Flares having igniters formed from extrudable igniter compositions The present invention relates to flares and other solid propellant devices, rockets or the like, equipped with an igniter or igniter system which is based in whole in part on an extruded igniter stick.... | 01/09/2001 |
| 6170398 | Signal transmission fuse A signal transmission fuse is made of a tube (36) which encases a support tape (14) having a reactive coating (18') which is adhered to one side of the tape by a binder. A method of making the signal transmission fuse includes depositing on the support ta... | 01/09/2001 |
| 5939661 | Method of manufacturing an explosive carrier material, and articles containing the same An explosive particle-containing carrier material (24b) and a fully jacketed finished explosive material (33, 33') containing it, e.g., detonating cord, are produced in a high-speed continuous process by impregnating an absorbent carrier material such as ... | 08/17/1999 |
| 5837924 | Signal transmission tube using reclaim material and method of manufacture The manufacture of a signal transmission tube (10a) comprising a polymeric tube (12) having an interior surface (14) with a thin layer of reactive material (18) disposed on the interior surface (14) is rendered more efficient and less costly by the use of... | 11/17/1998 |
| 5827995 | Reactive products having tin and tin alloy liners and sheaths The liner (16) and, optionally, the tamper (12) of a shaped charge and the sheathing of mild detonating cord, ignition cord, delay cord, etc., are advantageously made of a tin-copper- or tin-silver-based alloy that is preferably substantially lead-free an... | 10/27/1998 |
| 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 the tube wall. Rupture lines (20a, 20b and 20c, etc.), whic... | 10/27/1998 |
| 5810098 | Method of breaking slabs and blocks of rock from rock formations and explosive shock transmitting and moderating composition for use therein Rock slabs or pieces are broken from larger rocks or from rock formations with reduced cracking of the broken rock slabs or pieces by drilling bore holes along the desired break lines, placing detonating cord into the bore holes, filling the bore holes wi... | 09/22/1998 |
| 5780763 | Fracture/severance of materials A method for severing or weakening materials. Explosive cords are placed in grooves on the upper surface of the material to be severed or weakened. The explosive cords are initiated simultaneously to introduce explosive shock waves into the material. Thes... | 07/14/1998 |
| 5756925 | Precision flyer initiator A precision flyer initiator forms a substantially spherical detonation wave in a high explosive (HE) pellet. An explosive driver, such as a detonating cord, a wire bridge circuit or a small explosive, is detonated. A flyer material is sandwiched between t... | 05/26/1998 |
| 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 charge decreasing and the wall thickness increasing over at lea... | 02/24/1998 |
| 5714712 | Explosive initiation system A detonation system especially useful for initiating a plurality of substantially simultaneous seismic detonations includes an electric trunkline circuit disposed on the surface of a firing site containing boreholes, within which booster charges having re... | 02/03/1998 |
| 5629493 | Low energy fuse having improved properties in both axial and radial directions A low energy fuse, comprising a plastic tube with a channel, the channel containing a reactive material able upon ignition to sustain a shock wave within the channel, the tube comprising at least two layers of plastic materials, a first plastic layer clos... | 05/13/1997 |
| 5597973 | Signal transmission fuse A signal transmission fuse (10, 20) such as shock tube has an outside diameter (OD) not greater than about 2.380 mm (0.0937 inch), for example, a tube outside diameter (OD) of from about 0.397 to 2.380 mm (about 0.0156 to 0.0937 inch), and the ratio of th... | 01/28/1997 |
| 5509355 | Low energy fuse and method of manufacture A low energy fuse is 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 comprising a major amount of an orientable polymer, for e... | 04/23/1996 |
| 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 core loading additionally contains up to 50% (w/w with res... | 12/12/1995 |
| 5383405 | Explosive lines An explosive line including a pliable impervious outer casing and a filling of explosive material within the casing. An outer surface of the casing has a plurality of generally flat faces which are spaced about the explosive line so as to provide an outer... | 01/24/1995 |
