| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 102305000 | Detonation wave modifying | 58 |
| 20100018427 | Explosive Charge - Container ( | 01-28-2010 |
| 20100107916 | SHELLCASE FOR CONTROLLING REFLECTIONS OF PRIMER SHOCKWAVES - A shellcase body for use as part of an ammunition cartridge, which includes a base portion at one end, a middle portion having a substantially straight sidewall and joined with the base portion, and a shoulder portion joined to and extending from the middle portion. A neck portion may be joined to and extend from the shoulder portion. The shoulder portion is typically annularly shaped and includes a semi-circular sidewall that extends between an aft end and a fore end. The semi-circular sidewall has a curvature that is defined by a circular arc having a predetermined radius and a center that is positioned a distance away from the shellcase body center longitudinal axis. The shoulder portion is joined with the straight sidewall at a secant point of the circular arc, i.e., the straight sidewall defines a secant line that intersects the circular arc at the aforementioned secant point. | 05-06-2010 |
| 20110094406 | Dissolvable Material Application in Perforating - A shaped charge includes a charge case; a liner; an explosive retained between the charge case and the liner; and a primer core disposed in a hole in the charge case and in contact with the explosive, wherein at least one of the case, the liner, the primer core, and the explosive comprising a material soluble in a selected fluid. A perforation system includes a perforation gun, comprising a gun housing that includes a safety valve or a firing valve, wherein the safety valve or the firing valve comprises a material soluble in a selected fluid. | 04-28-2011 |
| 20130233194 | EXPLOSIVE CUTTING - A method for explosive cutting using converging shockwaves, and an explosive cutting device are disclosed. The method includes providing a projectile with an explosive charge, positioning the projectile over the object so it extends along an intended line of cut, and detonating the explosive charge so that the projectile is accelerated toward the object, wherein the projectile either impacts on the object and the projectile includes a wave-shaping element which is shaped such that the impact generates converging shockwaves in the underlying object to be cut causing a crack to be propagated through the object along the intended line of cut; or impacts on a wave-shaping element in contact with the object, the wave-shaping element being shaped such that the impact generates converging shockwaves in the underlying object causing a crack to be propagated through the object along the intended line of cut. | 09-12-2013 |
| 20130319277 | Blasting Method Using a Control Device for Inducing a Blast Pressure, and Control Device for Inducing the Blast Pressure to Apply the Method - The present invention relates to a blasting method using a control device for inducing a blast pressure, and a control device for inducing the blast pressure to apply the method. According to the blasting method using the control device for inducing the blast pressure, when a blasting operation is performed at the outermost hole of a tunnel or a wayside or wall surface of a structure constructed at a location in which an adjacent structure of a downtown area is located, a transfer path of the blast pressure is controlled using the control device for inducing the blast pressure so that the blast pressure does not exceed a proposed blast line, but is limitedly transferred into only a blasting area. Thus, a smooth and elegant blasted surface may be secured, and simultaneously, an over-break may be prevented and vibration and noises may be minimized. According to the present invention, since a general inexpensive explosive is loaded into a blasting prevention cover and easily utilized, the general inexpensive explosive may be replaced with an existing expensive precision explosive to significantly reduce blasting costs and improve blasting efficiency, thereby having a large economic impact and useful effects. | 12-05-2013 |
| 20140026776 | HIGH-DENSITY THERMODYNAMICALLY STABLE NANOSTRUCTURED COPPER-BASED BULK METALLIC SYSTEMS, AND METHODS OF MAKING THE SAME - High-density thermodynamically stable nanostructured copper-based metallic systems, and methods of making, are presented herein. A ternary high-density thermodynamically stable nanostructured copper-based metallic system includes: a solvent of copper (Cu) metal; that comprises 50 to 95 atomic percent (at. %) of the metallic system; a first solute metal dispersed in the solvent that comprises 0.01 to 50 at. % of the metallic system; and a second solute metal dispersed in the solvent that comprises 0.01 to 50 at. % of the metallic system. The internal grain size of the solvent is suppressed to no more than 250 nm at 98% of the melting point temperature of the solvent and the solute metals remain uniformly dispersed in the solvent at that temperature. Processes for forming these metallic systems include: subjecting powder metals to a high-energy milling process, and consolidating the resultant powder metal subjected to the milling to form a bulk material. | 01-30-2014 |
| 102306000 | Shaped charge or charge with detonation wave cavity modifier | 52 |
| 20080282924 | Shaped Charge and a Perforating Gun - A shaped charge comprises a shell, an explosive charge disposed inside the shell, and a first liner for retaining the explosive charge within the shell. The shaped charge further comprises an acid material disposed inside the shell on the first liner and retained by a second liner into the shell. | 11-20-2008 |
| 20090071361 | INJECTION MOLDED SHAPED CHARGE LINER - A shaped charge liner formed by injection molding, where the liner comprises a powdered metal mixture of a first and second metal. The mixture includes about 50% to about 99% by weight percent of the first metal, about 1% to about 50% by weight percent of a second metal, about 1% to about 50% by weight percent of a third metal. In one embodiment, the first metal comprises tungsten, the second metal may comprise nickel, and the third metal may comprise copper. | 03-19-2009 |
| 20090235836 | Apparatus and Method for Penetrating Oilbearing Sandy Formations, Reducing Skin Damage and Reducing Hydrocarbon Viscosity - A shaped charge and a method of using such to provide for large and effective perforations in oil bearing sandy formations while causing minimal disturbance to the formation porosity is described. This shaped charge uses a low-density liner having a filler material that is enclosed by outer walls made, preferably, of plastic or polyester. The filler material is preferably a powdered metal or a granulated substance, which is left largely unconsolidated. The preferred filler material is aluminum powder, or aluminum particles, that are coated with an oxidizing substance, such as TEFLON®, permitting a secondary detonation reaction inside the formation following jet penetration. The filled liner is also provided with a metal cap to aid penetration of the gun scallops, the surrounding borehole casing and the cement sheath. The metal cap forms the leading portion of the jet, during detonation. The remaining portion of the jet is formed from the low-density filler material, thereby resulting in a more particulated jet. The jet results in less compression around the perforation tunnel and less skin damage to the proximal end of the perforation tunnel. | 09-24-2009 |
| 20100031842 | SPACE ENERGY IMPLOSION UNIT AND AN ENERGY AMPLIFICATION GENERATOR USING THE SAME - Provided are a space energy implosion unit and an energy amplification generator using the same. The space energy implosion unit includes: a planar structure | 02-11-2010 |
| 20100275800 | Single Phase Tungsten Alloy for Shaped Charge Liner - A single phase metal alloy usually for forming a shaped charge liner for a penetrating jet or explosively formed penetrator forming warhead consists essentially of from a trace to 90%, by weight, of cobalt, from 10% to 50% by weight, of tungsten, and the balance nickel and inevitable impurities. One preferred composition is, by weight, from 16% to 22%, cobalt, from 35% to 40% tungsten and the balance is nickel and inevitable impurities. The alloy is worked and recrystallized and then formed into a desired product. In addition to a shaped charge liner, other useful products include a fragmentation warhead, a warhead casing, ammunition, radiation shielding and weighting. | 11-04-2010 |
| 20120024180 | REACTIVE SHAPED CHARGE, REACTIVE LINER, AND METHOD FOR TARGET PENETRATION USING A REACTIVE SHAPED CHARGE - Embodiments of a reactive shaped charge, a reactive liner, and a method for penetrating a target are generally described herein. The reactive shaped charge comprises a reactive liner having a matrix of reactive metal particles in a hydrocarbon fuel, a high explosive, and an inner barrier separating the reactive liner from the high explosive. The hydrocarbon fuel fills the interstitial spacing between the reactive metal particles, and the matrix is tightly packed or compresses to exhibit a solid like property. | 02-02-2012 |
| 20120285344 | METHOD FOR SEVERING TUBES USING AN EXPANDABLE SHAPE CHARGE POSITIONER - A method of severing tubular members using an expandable linear explosive shape charge positioner. The method involves placing a plurality of arc-shaped charge chambers along the same plane and adjacent to the interior walls of a tube. Simultaneous detonation of the charge chambers severs the tube along a common plane. The positioner is placed within a tubular member and includes a remotely extendible framework with linear explosive shape charges enclosed therein. When in the collapsed position, the apparatus passes through constrictions within the tubular members. When extended, the framework is positioned transversely to the axis of the tubular member with the shape charges positioned adjacent the interior walls thereof. Shape charge chambers with angled ends are presented to provide overlap when the device is fully extended to better ensure complete separation of the tubular member at the discontinuities of the shape charges about the plane of severance. | 11-15-2012 |
| 20130087061 | DISSOLVABLE MATERIAL APPLICATION IN PERFORATING - A shaped charge includes a charge case; a liner; an explosive retained between the charge case and the liner; and a primer core disposed in a hole in the charge case and in contact with the explosive, wherein at least one of the case, the liner, the primer core, and the explosive comprising a material soluble in a selected fluid. A perforation system includes a perforation gun, comprising a gun housing that includes a safety valve or a firing valve, wherein the safety valve or the firing valve comprises a material soluble in a selected fluid. | 04-11-2013 |
| 20130145950 | Surface Blasting Product - A surface blasting product which includes a container, a receptacle which contains adhesive which is displaceable to adhere the container to a rock, and an explosive charge, inside the container, which can be ignited to fragment or displace the rock. | 06-13-2013 |
| 20130233195 | Pressure-enhancing Explosive Charge - Exemplary multi-shell structured blast effect charges as well as shaped charge or shaped-charge-like explosive charges are disclosed which contain metal carbonyls in the form of pure substances, granulates, mixtures with inorganic fuels, or as granulates of mixtures with inorganic fuels integrated in suitable closed containers. The metal carbonyls serve in the form proposed herein as fuel, which during the intended conversion of the total charge exhibit an undirected (multi-shell structured blast effect charges) or at least partially directed (shaped charges or shaped-charge-like explosive charges) pressure enhancing effect. | 09-12-2013 |
| 20130340643 | SHAPED CHARGE LINER - A liner for a shaped charge is provided for improved penetration of a target formation. The liner is formed from a combination of high density particulate and low density particulate. | 12-26-2013 |
| 20150083009 | EXPLOSIVE BULK CHARGE - An explosive bulk charge, including: a first contact surface configured to be selectively disposed substantially adjacent to a structure or material; a second end surface configured to selectively receive a detonator; and a curvilinear side surface joining the first contact surface and the second end surface. The first contact surface, the second end surface, and the curvilinear side surface form a bi-truncated hemispherical structure. The first contact surface, the second end surface, and the curvilinear side surface are formed from an explosive material. Optionally, the first contact surface and the second end surface each have a substantially circular shape. Optionally, the first contact surface and the second end surface consist of planar structures that are aligned substantially parallel or slightly tilted with respect to one another. The curvilinear side surface has one of a smooth curved geometry, an elliptical geometry, and a parabolic geometry. | 03-26-2015 |
| 20150345916 | Energetic Device Labeling - A method and apparatus for including information on a shaped charge. | 12-03-2015 |
| 20150375301 | BINARY OR HIGHER ORDER HIGH-DENSITY THERMODYNAMICALLY STABLE NANOSTRUCTURED COPPER-BASED TANTALUM METALLIC SYSTEMS, AND METHODS OF MAKING THE SAME - A binary or higher order high-density thermodynamically stable nanostructured copper-tantalum based metallic system according to embodiments of the invention may be formed of: a solvent of copper (Cu) metal that comprises 70 to 100 atomic percent (at. %) of the metallic system; and a solute of tantalum (Ta) metal dispersed in the solvent metal, that comprises 0.01 to 15 at. % of the metallic system. The metallic system is thermally stable, with the absence of substantial gross grain growth, such that the internal grain size of the solvent metal is substantially suppressed to no more than about 250 nm at approximately 98% of the melting point temperature of the solvent metal and the solute metal remains substantially uniformly dispersed in the solvent metal at that temperature. Processes for forming these metallic systems may include: subjecting powder metals of solvent and the solute to a high-energy milling process using a high-energy milling device to impart high impact energies to its contents. Due to their high-density thermodynamically stable nanostructured, these metallic systems are an ideal candidate for fabricating shaped charge liners for ordinance. | 12-31-2015 |
| 20160169639 | Composite Shaped Charges | 06-16-2016 |
| 102307000 | Linear or curvilinear cavity | 30 |
| 20080289529 | APPARATUS FOR PENETRATING A TARGET AND ACHIEVING BEYOND-PENETRATION RESULTS - The specification and drawing figures describe and show an apparatus for penetrating a target and achieving beyond-penetration results. The apparatus includes a liner. The liner includes at least one liner member formed of a penetrating material and one liner member formed of a reactive material, and may include at least one liner member formed of neither a penetrating nor reactive material. The liner member is positioned in a housing. The housing includes an explosive and means for detonating the explosive. | 11-27-2008 |
| 20090078144 | LINER FOR SHAPED CHARGES - A liner for a shaped charge is disclosed which comprises a plurality of portions, where at least one portion is composed of powder materials. In one embodiment, the liner comprises two portions that are composed of different powder materials, while alternative embodiments of the liner comprise three portions or four portions. When the shaped charge is used in a perforating gun, reactive powder materials may be added to the plurality of portions of the liner to optimize the penetration or the enhancement of the perforating tunnel. | 03-26-2009 |
| 20090114111 | EXPLOSIVE CHARGE - An explosive charge is disclosed which has a spatial shape comprising explosive material and, in the course of the explosion, unfolds a spatially anisotropic pressure action in at least one main action direction, in which the pressure action is greater than in the other action directions. The spatial shape comprising the explosive material has a surface area facing toward the at least one main action direction and extends in the at least one main action direction, particles are applied and/or a material layer disintegrating into particles during the explosion is applied to the surface area, the particles comprise a nonexplosive material, and a total mass of the particles is less than a mass of the explosive material. | 05-07-2009 |
| 20090255432 | Super compressed detonation method and device to effect such detonation - A method and apparatus are provided for detonation of a super-compressed insensitive energetic material by cylindrical implosion followed by an axial detonation to a detonation velocity several times that of TNT and a detonation pressure in excess of ten times that of TNT. The device provides a conical metal flyer shell within which is disposed a cylindrical anvil surrounded by explosive. The anvil retains an insensitive energetic material to be compressed and detonated. A first detonation of explosive by impact of the flyer shell generates a reverberating oblique shock wave system for sample compression. Axial detonation of the compressed sample through any length of a sample is achieved following the principal of matching the axial velocity and compression time of the oblique shock wave system to the detonation velocity and induction delay time of the compressed sample. The method and apparatus are also applicable to enhancing the effect of anti-armour and anti-hard-target munitions. The apparatus is also applicable to inert sample compression to the megabar range without using the axial detonation. | 10-15-2009 |
| 20090255433 | Devices and Methods for Perforating A Wellbore - An apparatus and method for perforating a subterranean formation is disclosed. The apparatus includes a tubular carrier; a charge tube disposed in the tubular carrier; and at least one shaped charge mounted in the charge tube which includes a casing, an explosive material and a liner enclosing the explosive material within the casing. An apex portion of the liner has a cross-sectional thickness greater than a cross-sectional thickness of any other portion of the liner. The cross-sectional thickness of the apex portion may be at least fifty percent thicker than a cross-section of a portion adjacent the apex portion. A density of the apex portion may be greater than the density of any other portions of the liner. | 10-15-2009 |
| 20090301334 | LINEAR SHAPED CHARGE SYSTEM - A linear charge system ( | 12-10-2009 |
| 20100043661 | EXPLOSIVE CUTTING CHARGE - An explosive cutting charge is formed by machining or otherwise forming a cavity of a desired configuration within a circular ring of metal cutting material such as copper or aluminum. The cavity may then be filled with an explosive material. The cutting characteristics of the cutting charge may be controlled by the selected cross-section configuration of the cavity. The ring may contain a booster explosive charge with connections to the active portion of the ring having the cutting metal material. | 02-25-2010 |
| 20100132578 | RADIAL-LINEAR SHAPED CHARGE PIPE CUTTER - A radial-linear shaped charge pipe cutter is constructed with the booster explosive packed intimately into a booster aperture that is bored axially through the charge upper end plate. The cutter explosive is initiated at the interface between the upper margin of the cutter explosive and the contiguous inside surface of the upper end plate. This interface is within a critical initiation distance from the half charge juncture plane. In one embodiment, a half charge liner is configured as the assembly of two, coaxial, frusto-cones with the smaller cone diverging from the half charge juncture plane at a smaller angle than the outer cone. In another embodiment, the liner thickness increases from the juncture plane out to the liner perimeter. | 06-03-2010 |
| 20100154670 | HIGH PERFORMANCE POWDERED METAL MIXTURES FOR SHAPED CHARGE LINERS | 06-24-2010 |
| 20110094407 | Expandable Shape Charge Positioner - An expandable linear explosive shape charge positioner apparatus and method for deploying said apparatus for severing tubular members whereby a plurality of arc segment shape charge chambers are positioned along the same plane and adjacent to the interior walls of the tubular members and detonated to thereby severing the tubular members. The apparatus of the invention is adapted to be placed within a tubular member and includes a remotely extendible framework having remotely detonatable linear explosive shape charges enclosed therein. The apparatus is of a size such that when the framework is not extended, the apparatus passes through constrictions contained within the tubular members, and when extended, the framework is positioned transversely to the axis of the tubular member with the shape charges positioned adjacent the interior walls thereof. Shape charge chambers with angled ends are presented to provide overlap when the device is fully extended to better ensure complete separation of the tubular member at the discontinuities of the shape charges about the plane of severance. | 04-28-2011 |
| 20110155013 | ELECTROMAGNETIC FORMED SHAPED CHARGE LINERS - A perforating apparatus according to one or more aspects of the present disclosure comprises a carrier adapted to be deployed in a wellbore; a shaped explosive charge mounted on the carrier, the shaped charge comprising an explosive disposed inside of a case; and a conically shaped liner having an apex and a base disposed with the explosive in the case, the liner comprising an electromagnetically formed portion. The electromagnetically formed portion may comprise a thickness at the apex that is different from a thickness at the base. | 06-30-2011 |
| 20110219978 | Shaped Charge Liner Comprised of Reactive Materials - A shaped charge liner is provided. The shaped charge liner comprises a first material denser than 10 grams per cubic centimeter (g/cc) and a reactive material. The first material is concentrated in a middle of the liner and decreased in at least one of an apex and a skirt of the liner, and the reactive material is concentrated in at least one of the apex and the skirt of the liner and decreased in the middle of the liner. | 09-15-2011 |
| 20110239888 | REACTIVE SHAPED CHARGE, REACTIVE LINER, AND METHOD FOR TARGET PENETRATION USING A REACTIVE SHAPED CHARGE - Embodiments of a reactive shaped charge, a reactive liner, and a method for penetrating a target are generally described herein. The reactive shaped charge comprises a reactive liner having a matrix of reactive metal particles in a hydrocarbon fuel, a high explosive, and an inner barrier separating the reactive liner from the high explosive. The hydrocarbon fuel fills the interstitial spacing between the reactive metal particles, and the matrix is tightly packed or compresses to exhibit a solid like property. | 10-06-2011 |
| 20120210899 | Apparatus and method for a low fragment explosive access tool using one piece of explosive sheet in the form of a simple geometric shape, a booster charge of explosive sheet in the form of a disk, a blasting cap, and inert materials - Apparatus and method for an explosive access tool using one piece charge of explosive sheet in the form of a simple geometric shape, a disk shaped booster charge, a blasting cap, and inert materials. The one piece charge of explosive sheet, envelopes an inert tamper block with its apexes meeting on the top side of the block facing away from the target. A smoothing layer, preferably in a mostly square shape, is placed between the target and the explosives covering the bottom side of the tamper block. An initiating means is connected to the apexes of the explosive charge so that upon initiation, a series of detonation waves are generated to meet in a manner that result in a plurality of petals cantilevered that are formed in the target material, substantially between the intersections of the meeting shock waves, to define a near fragment-free opening in the target material. | 08-23-2012 |
| 20120234194 | Shaped Charge Liner Comprised of Reactive Materials - A shaped charge liner comprises a powder, and the powder comprises a blend of particles. The particles comprise a core material, a first reactant material in intimate contact with the core material, and a second reactant material in intimate contact with the first reactant, where the core material has a density greater than 10 grams per cubic centimeter (g/cc). | 09-20-2012 |
| 20120247357 | VENTING SYSTEM AND INITIATOR THEREOF - A system for venting a container includes a venting device, a transition manifold coupled with the venting device, and an initiator coupled with the transition manifold. The initiator includes a reactive panel including a substrate and a plurality of reactive layers disposed on the substrate. A method of venting a container includes providing a venting system operatively associated with the container, reacting a first material of the venting system with a second material of the venting system to produce an exothermic reaction, and venting the container as a result of reacting the first material with the second material. | 10-04-2012 |
| 20120247358 | LINERS FOR WARHEADS AND WARHEADS HAVING IMPROVED LINERS - Improved liners and explosive devices having improved liners are provided. In accordance with an exemplary embodiment, a liner for an explosive device comprises a plate configured to be positioned against an explosive charge. The plate comprises rhenium, palladium, or a combination thereof, at least a bimodal particle size distribution having a powder grain size no greater than 25 microns, a substantially circular diameter, and a substantially concave interior relative to a surface of the explosive charge. | 10-04-2012 |
| 20130014661 | MATERIAL AND SHAPED CHARGE - One or more aspects of the present invention relate to a material comprising particles dispersed in a polymer matrix, wherein the particles include at least one metal and are packed in the polymer matrix with a density of at least 0.6 of the density of the at least one metal. The invention further relates to a shaped charge, an element for forming a liner of a shaped charge, and a kit for assembling a shaped charge. | 01-17-2013 |
| 20130014662 | LINEAR SHAPED CHARGE - One or more aspects of the present invention relate to a linear shaped charge comprising an explosive element, a liner, a face for application to a target object and a space between the liner and the face, the liner being arranged for projection through the space, towards the face, when the explosive element is detonated, and the explosive element and the liner having a V-shaped cross section, the liner lying in a groove of the V-shaped cross section of the explosive element, the liner having a length L of a side furthest from the face and the liner having a thickness T taken perpendicular to said length L, wherein an angle α of an apex of the liner nearest the face is 101.5 to 106.5 degrees, and a stand-off distance SD between the face and a point of the liner nearest the face is 0.99 S to 1.21 S, S being a distance, parallel the stand-off distance SD, between the point of the liner nearest the face and the apex of the liner nearest the face. | 01-17-2013 |
| 20130061771 | ACTIVE WAVESHAPER FOR DEEP PENETRATING OIL-FIELD CHARGES - A shaped charge having a liner, a shaped charge case, high explosive between the ilner and the case, and an active wave shaping element that is made of an energetic material that reacts at a rate different from the high explosive. The wave shaping element is disposed in the high explosive between an apex of the liner and base of the shaped charge case. Example materials of the wave shaping element include HMX, RDX, PBX types, PETN, HNS, TATB, and combinations thereof. | 03-14-2013 |
| 20140144341 | High Density Powdered Material Liner - A die set for forming explosive charge liners from powdered material comprises a die block defining a basin and a punch shaped to interact with the basin. The die block and the punch are configured to exclude powdered material from a center axis of the basin. An apparatus comprises a deep-penetrating explosive charge liner formed of powdered material held together by green strength having a hole in a narrow end of the liner. | 05-29-2014 |
| 20140366763 | SHAPED CHARGE ASSEMBLY SYSTEM - A system where a group of substantially universal pre-manufactured explosive pellet assemblies are provided for on-site forming of shaped charges. That is, a specifically tailored liner may also be separately provided to the worksite/oilfield and combined with any one of the pellet assemblies so as to form a shaped charge having characteristics that are determined by the particular liner used. In this manner, hazardous shipping of fully assembled shaped charges may be avoided while at the same time allowing the operator a full range of shaped charge performance options based on the availability of uniquely tailored performance determinative liners that are also provided to the oilfield location | 12-18-2014 |
| 20150013561 | METHOD FOR OBTAINING A LINEAR DETONATING SHAPED CUTTING CHARGE, CHARGE OBTAINED BY SAID METHOD - The invention relates to a method for obtaining linear detonating shaped cutting charges ( | 01-15-2015 |
| 20150040789 | ENHANCED LINEAR SHAPED CHARGE INCLUDING SPINAL CHARGE ELEMENT - An enhanced linear shaped charge (X-Jet) includes a sheath and a spinal charge element. The sheath extends along an axis between a first end and a second end to define a sheath length. The sheath has a first hollowed chevron-shaped cross-section that defines a main charge cavity, an upper apex, and a lower apex. The spinal charge element is disposed within the main charge cavity and abuts the upper apex. The spinal charge element further includes a spinal casing that extends along the sheath length to define a spinal length. The spinal casing has a hollowed cross-section defining a spinal charge cavity. | 02-12-2015 |
| 20150308795 | Venting System for a Jet Cutter in the Event of Deflagration - A jet cutter venting apparatus and method for venting gases generated during deflagration. The venting apparatus and method including vent grooves inside the jet cutter providing a pathway for deflagration gases to escape. The venting apparatus and method also may include using notches or holes placed inside the jet cutter to facilitate the venting of gases during deflagration. The venting of the gases during deflagration facilitates pressure relief within the jet cutter and increases safety from accidental detonation during a fire. | 10-29-2015 |
| 20150323294 | SHAPED CHARGE INCLUDING STRUCTURES AND COMPOSITIONS HAVING LOWER EXPLOSIVE CHARGE TO LINER MASS RATIO - An improved shaped charge apparatus and method of manufacturing is provided including a composite wave shaper, a main charge, and a metal liner. An exemplary embodiment's wave shaper can be adapted to manipulate a shock front so that an interaction of the main charge and the metal liner occurs lower along the liner's profile such that the apparatus restricts an initial elongation of a resulting jet. An embodiment can have a thickness of the metal liner sufficient to provide a mass necessary to generate a first size diameter aperture in a target material. An embodiment an also provide a combination of the liner thickness and shock interaction point resulting in the jet having an improved length to diameter ratio among other advantages. An embodiment of the invention can also provide other advantages such as an explosive to mass ratio of less than 3 or 2 to 1. | 11-12-2015 |
| 20150362297 | ENERGETIC MATERIAL APPLICATIONS IN SHAPED CHARGES FOR PERFORATION OPERATIONS - A shaped charge includes a cup-shaped casing defining an interior volume; a liner located within the interior volume; an explosive disposed between the liner and the casing; and a reactive material disposed between the liner and the casing. A method for generating a dynamic overbalance inside a wellbore includes disposing a perforation gun in the wellbore; and detonating a shaped charge in the perforation gun, wherein the shaped charge includes a cup-shaped casing defining an interior volume, a liner located within the interior volume, an explosive disposed between the liner and the casing, and a reactive material disposed between the liner and the casing. | 12-17-2015 |
| 20160076861 | ENHANCED LINEAR SHAPED CHARGE INCLUDING SPINAL CHARGE ELEMENT - An enhanced linear shaped charge (X-Jet) includes a sheath and a spinal charge element. The sheath extends along an axis between a first end and a second end to define a sheath length. The sheath has a first hollowed chevron-shaped cross-section that defines a main charge cavity, an upper apex, and a lower apex. The spinal charge element is disposed within the main charge cavity and abuts the upper apex. The spinal charge element further includes a spinal casing that extends along the sheath length to define a spinal length. The spinal casing has a hollowed cross-section defining a spinal charge cavity. | 03-17-2016 |
| 20160123709 | SHAPED-CHARGE LINER WITH FOLD AROUND OPENING - A shaped-charge liner for a shaped-charge assembly is provided. The shaped-charge assembly includes a housing, a liner, and explosive material between the housing and the liner. The liner includes an apex portion that has an opening and that defines a fold around the opening. The explosive material supports the apex portion. | 05-05-2016 |
| 20160202027 | LINEAR SHAPED CHARGE | 07-14-2016 |
| 102308000 | Tandem charge | 1 |
| 20100122639 | SINGLE-STEP CONTACT EXPLOSIVE DEVICE FOR BREACHING REINFORCED WALLS AND METHOD OF USE THEREFOR - A lightweight man-packable system for breaching in a single application reinforced structure such as steel reinforced concrete (SRC) walls. Embodiments comprise two explosive charge arrays installed in a housing that is abutted against a wall using either studs or prop sticks. One embodiment positions a secondary linear shaped charge (LSC) or self-forming fragment charge (SFF) spaced apart from a primary high explosive (HE) charge that contacts the structure. The HE is detonated to remove concrete in a pattern sufficient to enable a human to transit the resultant opening and the secondary charge cuts the reinforcement shortly thereafter enabling a “clean” breach via a single application of the system. In select embodiments the second array is positioned on a hinged frame to increase stand-off from the first array and moves into place to detonate over the opening immediately after detonation of the first array. | 05-20-2010 |
| 102309000 | Having a barrier | 4 |
| 20100139515 | SHAPED CHARGE WITH AN INTEGRAL LINER AND CASE - An integral shaped charge has a liner portion and a case portion, the liner portion forming a cavity extending from a face to an apex. An explosive is disposed in the chamber. | 06-10-2010 |
| 20100319562 | SHAPED CHARGE LINER WITH VARYING THICKNESS - A shaped charge has a case defining a volume therein. A liner is located in the volume. An explosive is located between the case and the liner. The liner defines an interior volume and an opening thereto. The liner also has an apex portion that is distal from the opening. The liner has a first thick portion and a second thick portion. A thin portion is located between the first thick portion and the second thick portion in a direction extending from the apex portion along the liner toward the opening. The thin portion is thinner than the first thick portion and thinner than the second thick portion. | 12-23-2010 |
| 20110232519 | Shaped Explosive Charge - A shaped charge explosive device is provided having a front, a rear and an axis of symmetry with the device comprising an explosive charge, a liner lining a front of the explosive charge, the liner having a recess in the form of a groove encircling the axis of symmetry; and the groove arranged to provide an axis of projection for the liner at an angle A relative to the axis of symmetry. A method of cutting a structure is provided comprising the steps of providing the foregoing device, detonating the explosive charge to create a detonation wave; forming the liner into an formed projectile in the shape of an annular ring with the detonation wave; directing the formed projectile towards the structure; and forming an annular ring cut pattern in the structure with the formed projectile. | 09-29-2011 |
| 20130014663 | SHAPED CHARGE AND ELEMENT - One or more aspects of the present invention relate to a shaped charge, including a linear shaped charge comprising an explosive element, a liner, a face for application to a target object and a space between the liner and the face, the liner being arranged for projection through the space, towards the face, when the explosive element is detonated, wherein the linear shaped charge comprises at least one film between the liner and the face. The invention further relates to an element for a shaped charge and a method of modifying a shaped charge. | 01-17-2013 |
| 102310000 | Plural charges | 2 |
| 20140060369 | Shaped Charge Casing - A shaped charge casing | 03-06-2014 |
| 20150345245 | Shaped Charge Casing Cutter - A shaped charge casing cutter is constructed with the cutter explosive formed into radial section modules aligned in a toroidal cavity between a pair of housing plates. The center sections of the housing plates are contiguously aligned with opposite parallel surfaces of a center disc. The housing plates comprise annular edges or rims, and the rims can be offset from respective center disc planes in opposite directions from each other to form a toroidal cavity. The toroidal cavity is enclosed by a circumferential belt secured to said housing plate rims. V-grooved shaped charge explosive in the form of multiple pi sections is distributed about the cavity to intimately contact a pair of frusto-conical liners. Assembly tolerance space between the pi sections is filled by dense paper card stock. | 12-03-2015 |
