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| Number | Title | Issue Date |
| 7938066 | Strip charge storage arrangement A storage arrangement for a strip charge includes a spool having a central aperture into which is placed an end of the strip charge, and a channel extending from the central aperture out to a peripheral wall around which the strip charge is wound. The channel includ... | 05/10/2011 |
| 7882785 | Demolition charge having multi-primed initiation system A demolition charge system has a multi-primed initiation system with a rigid container defining an internal chamber. An initiation tube is supported within the internal chamber and is configured to receive a demolition initiator. ... | 02/08/2011 |
| 7882784 | Demolition charge having multi-primed initiation system A demolition charge system has a multi-primed initiation system with a rigid container defining an internal chamber. An initiation tube is supported within the internal chamber and is configured to receive a demolition initiator. ... | 02/08/2011 |
| 7555986 | Thermite charge The present invention provides for cutting operations using linear thermite charges; the charges cut one dimensional or two dimensional geometric shapes; the invention is useful for structure entry or demolition. ... | 07/07/2009 |
| 7472652 | Demolition charge having multi-primed initiation system A demolition charge system has a multi-primed initiation system with a rigid container having interconnected thin end walls, side walls, a base and a lid. The lid continuously fits onto the end and side walls to cover and contain an internal chamber. Each of the end... | 01/06/2009 |
| 7395760 | Device, system and method for on-line explosive deslagging A device, system and method permitting on-line explosives-based cleaning and deslagging of a fuel burning facility (31) such as a boiler, furnace, incinerator, or scrubber. A coolant, such as ordinary water, is delivered to the explosives (101) to prev... | 07/08/2008 |
| 7367631 | Method of and apparatus for breaking rock Apparatus for breaking rock includes a cartridge with a base and a wall which extends from the base, the base and the wall forming an enclosure, a propellant inside the enclosure and means for igniting the propellant, and wherein at least the wall is made from a mal... | 05/06/2008 |
| 7340025 | Plasma antenna generator and method of using same A plasma antenna generator includes a ceramic portion including an ionizable material, an explosive charge adapted to project at least part of the ceramic portion upon detonation at a velocity sufficient to ionize the ionizable material, and a detonator coupled with... | 03/04/2008 |
| 7284489 | Casing conveyed well perforating apparatus and method Disclosed is a device and method for externally perforating a well-bore casing. The perforating apparatus is attached to the outside of the casing itself and is conveyed along with the casing when it is inserted into the well bore. The perforation is accomplished us... | 10/23/2007 |
| 7284601 | Casing conveyed well perforating apparatus and method Disclosed is a device and method for externally perforating a well-bore casing. The perforating apparatus is attached to the outside of the casing itself and is conveyed along with the casing when it is inserted into the well bore. The perforation is accomplished us... | 10/23/2007 |
| 7246548 | Well perforating gun Embodied herein is a perforating gun wall that withstands short, high energy pulses of an explosion retained within a loading tube with numerous explosive shaped charges. The perforating gun wall includes two or more layers with an impact strength sufficient to main... | 07/24/2007 |
| 7210409 | Modular explosives cartridge and novel spider construction A modular explosives cartridge comprises a tubular body having lockable coupling members secured on opposite ends thereof to form a bayonet coupling between opposite ends of respective cartridges to form an elongate tubular explosives cartridge. The lockable couplin... | 05/01/2007 |
| 7000545 | Multifunctional breaching apparatus Breaching apparatus including a housing constructed of a material that disintegrates upon explosion without significant amounts of fragments being given off, and an explosive element disposed in the housing capable of producing an explosive force sufficient for brea... | 02/21/2006 |
| 6962202 | Casing conveyed well perforating apparatus and method Disclosed is a casing conveyed perforating apparatus and method for externally perforating a wellbore casing. The perforating apparatus is attached to the outside of the casing and is conveyed along with the casing when it is inserted into the wellbore. The perforat... | 11/08/2005 |
| 6926096 | Method for using a well perforating gun The invention relates to a method to use a perforating gun in oil and natural gas wells, comprising: a perforating gun with a loading tube and explosive charge; the gun comprises: a first layer disposed over the loading tube and at least one outer layer in engagemen... | 08/09/2005 |
| 6886466 | Method and apparatus for sleeving a borehole A novel method and device for sealing a borehole that is filled either partially or completely with water. A water-permeable sleeve is capable of expanding to the diameter of the borehole, and is constructed of a material that will allow the passage of water in and ... | 05/03/2005 |
| 6684791 | Shaped charge detonation system and method Encapsulated shaped charge for efficient initiation of hydrodynamic velocity detonation of explosives column. A water tight capsule with angled sides containing sufficient quantities of explosive and a detonator means where the capsule substantially occup... | 02/03/2004 |
| 6644201 | Device, system and method for on-line explosive deslagging A device, system and method permitting on-line explosives-based cleaning and deslagging of a fuel burning facility such as a boiler, furnace, incinerator, or scrubber. A coolant, such as ordinary water, is delivered to the explosives to prevent them from ... | 11/11/2003 |
| 6622627 | Actuator apparatus Actuator apparatus comprising an actuator including an at least partially hollow housing, a cap element removably mountable on the actuator, and a coil of electrical wire disposed inside the housing, a first portion of the coil being arranged for electric... | 09/23/2003 |
| 6523474 | Shaped recesses in explosive carrier housings that provide for improved explosive performance A carrier for containing explosives (e.g., shaped charges) includes a housing having a plurality of recesses, each recess having a periphery and a side surface extending around the periphery. The side surface is shaped to a geometry to reduce or control r... | 02/25/2003 |
| 6460463 | Shaped recesses in explosive carrier housings that provide for improved explosive performance in a well A carrier for containing explosives (e.g., shaped charges) includes a housing having a plurality of recesses, each recess having a periphery and a side surface extending around the periphery. The side surface is shaped to a geometry to reduce or control r... | 10/08/2002 |
| 6435096 | Method and apparatus for controlled small-charge blasting by decoupled explosive A cartridge containing an explosive charge is inserted at the bottom of a short hole drilled in the rock. The cartridge is held in place or stemmed by a massive stemming bar of high-strength material such as steel. The cartridge incorporates additional in... | 08/20/2002 |
| 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 |
| 6412415 | Shock and vibration protection for tools containing explosive components A method and apparatus for use in a wellbore includes explosive components, a housing containing the explosive components, and at least one protection barrier mounted on the housing to reduce transmissibility of an external force load to the housing. The ... | 07/02/2002 |
| 6386110 | Deforming charge assembly and method of making same A deforming charge assembly is provided which has an inner and an outer cylinder formed from carbon fiber. Each of the inner and outer cylinders have an inner circumference surface having an inner diameter and an outer circumference surface having an oute... | 05/14/2002 |
| 5959237 | Explosive charge with assembled segments and method of manufacturing same An improved cast explosive charge and a method of manufacturing said cast explosive charges utilizing an automated assembly system. The explosive charges are produced by combining two elongate cast segments, thereby abutting an exterior surface of one seg... | 09/28/1999 |
| 5894644 | Lead-free projectiles made by liquid metal infiltration A process for making lead-free projectiles such as bullets using liquid metal infiltration to make a projectile having a density similar to lead.... | 04/20/1999 |
| 5872325 | Ammunition casing of composite fiber material The invention is directed to an ammunition casing made of a composite fiber material, which comprises fiber material and a bonding agent, is at least partially flammable and has a high strength. The ammunition casing is particularly useful when surroundin... | 02/16/1999 |
| 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 |
| 5833782 | High-energy-absorbing enclosure for internal explosion containment A structural enclosure, box-like for many embodiments, which effectively tains an explosion, thereupon remaining virtually intact and minimizing fragmentation. The structural wall has a sandwich-like arrangement of two fiber-reinforced matrix material sk... | 11/10/1998 |
| 5798477 | Explosive cartridge assembly for presplitting rock The present invention includes a small diameter explosive cartridge and a two-stage large diameter explosive cartridge apparatus for presplitting rock can be axially detonated by detonating cord through a central detonation passageway in the explosive car... | 08/25/1998 |
| 5780764 | Booster explosive devices and combinations thereof with explosive accessory charges A booster explosive device (10) has a housing (12) within which is contained an explosive primer charge (14). Mechanical fastener components such as exterior screw threads (32) on housing (12) and interior screw threads (34) on an explosive accessory char... | 07/14/1998 |
| 5763816 | Explosive primer An explosive primer designed for use with a fuse cord and an initiating device. The primer consists of a container, which holds the explosive, and a cap received on the open end of the container. The container has two lateral opposing cord tunnels which r... | 06/09/1998 |
| 5747723 | Modular artillery charge system A modular artillery charge system consists of two distinct solid propellant harge modules. Each module consists of a three-piece combustible cartridge case design and bi-directional center core core ignition system. The three-piece combustible cartridge ca... | 05/05/1998 |
| 5648635 | Expendalble charge case holder This invention is in the field of perforating gun systems used, for example, to gain access to underground oil and gas formations. In particular, this invention relates to an expendable holder assembly for shaped charges of such systems.... | 07/15/1997 |
| 5625162 | Signal tube of improved oil resistance The invention relates to oil resistant signal tube, in particular, to initiating explosives or explosives accessories which comprise signal tube. The signal tube of the invention has a sub-tube comprising polyethylene and an outer jacket comprising a ther... | 04/29/1997 |
| 5623117 | Delay ordnance system A pancake-configured housing holds first and second printed circuit boards. The first board includes electronic circuitry providing an adjustable timing delay and a first switch manually operated from a position external to the housing. The second board i... | 04/22/1997 |
| 5614693 | Accessory charges for booster explosive devices An accessory charge (20) for mounting on a booster explosive device (10) is preferably of toroidal configuration including a hub opening (29) dimensioned and configured to engage the accessory charge (20) with the booster device (10). The booster device (... | 03/25/1997 |
| 5505135 | Low stress casing joint configuration A pulverable casing (10) includes a housing (12) which is made from a ceramic material and which defines a circular housing closure surface (18). There is a cover (14) on the housing (12). The cover (14) is also made from a ceramic material and defines a ... | 04/09/1996 |
| 5501154 | Substantially lead-free tin alloy sheath material for explosive-pyrotechnic linear products A binary, ternary and/or quaternary substantially lead-free tin alloy composition that may be used as outer sheath material in various explosive-pyrotechnic linear products, such as ignition cord, mild detonating cord (MDC) and linear shaped charge (LSC).... | 03/26/1996 |
