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| Number | Title | Issue Date |
| 7238733 | Storable water-silica suspensions and methods Storable water-silica suspensions and methods of cementing well bores are provided. The storable water-silica suspensions are basically comprised of water, silica and an effective amount of a suspending agent selected from the group consisting of colloidal materials... | 07/03/2007 |
| 7225082 | Colloidal rod particles as nanobar codes Freestanding particles comprising a plurality of segments, wherein the particle length is from 20 nm to 50 μm and the particle width is form 5 nm to 50 μm. ... | 05/29/2007 |
| 7105140 | Desulfurization compositions A composition comprising manganese oxide and a promoter, wherein at least a portion of the promoter is present as a reduced valence promoter and methods of preparing such composition are disclosed. The thus-obtained composition is employed in a desulfurization zone ... | 09/12/2006 |
| 7089861 | Heating element for igniting pyrotechnic charge A heating element for the ignition of a pyrotechnic charge, e.g. for firing an air bag, has increased stability with respect to transient pulses and electrostatic discharge as a result of a selection of this mass, specific resistance and specific heat capacity. In p... | 08/15/2006 |
| 7073589 | System for fracturing wells using supplemental longer-burning propellants A system for fracturing wells uses a primary propellant charge to initially produce pressures within the well in excess of the maximum fracture extension pressure of the surrounding formation, but below that which would cause damage to the well. A supplemental prope... | 07/11/2006 |
| 7033977 | Compositions and methods for sealing formations The present invention generally relates to compositions of matter and methods of using those compositions. More particularly, and as part of one of the preferred embodiments, the present invention relates to compositions and methods of use of fluids useful for seali... | 04/25/2006 |
| 7014828 | Process for stabilizing ammonium nitrate The invention relates to a method for producing thermally and mechanically stable ammonium nitrate by dissolving in nitric acid 1–3% by weight of reticulated metal silicate, before treatment with ammonia. The ammonium nitrate granules produced by this method swell... | 03/21/2006 |
| 6960267 | Multi-component liquid explosive composition and method A multi-component liquid explosive composition and method of mixing thereof. The steps include (a) providing a powder consisting of aluminum preferably having an average particle size of 5 to 50 microns and a surface area of 0.5 to 2 square meters per cubic centimet... | 11/01/2005 |
| 6955731 | Explosive composition, method of making an explosive composition, and method of using an explosive composition An explosive composition is provided that is comprised of a Heavy ANFO and grain hulls. In one embodiment, the grain hulls are comprised of rice hulls. The grain hulls serve both as an inert bulking additive that reduces the density of the composition and as a sensi... | 10/18/2005 |
| 6913661 | Ammonium nitrate propellants and methods for preparing the same The present invention is directed to an age-stabilized and/or strengthened ammonium nitrate propellant composition wherein the strengthening agent is selected from the group consisting of azodicarbonamide, dicyandiamide, oxamide and mixtures thereof and wherein the ... | 07/05/2005 |
| 6905135 | Inflator system Inflator module for inflating an airbag with gas including an elongate housing, an elongate block of propellant arranged in the housing and generating gas when burning and preferably, igniter material arranged on the propellant. The igniter material is substantially... | 06/14/2005 |
| 6736912 | Combustible compositions for air-augmented rocket engines A solid combustible composition for use in solid fuel air-augmented rocket engines which very substantially increases the temperature efficiency of afterburner fuel combustion with ram air, thereby greatly increasing engine performance. The improvement comprises dis... | 05/18/2004 |
| 6558488 | Method of making pourable plastic-bound explosive charges or rocket propellant The invention relates to a method of making pourable, plastic-bound explosive charges or rocket propellants, to which a metal powder having essentially spherically shaped grains is added. To avoid an increase in the viscosity of the explosive charge or the roc... | 05/06/2003 |
| 6334917 | Propellant compositions for gas generating apparatus A gas generating apparatus for outputting a gas is provided. In one embodiment, the apparatus is an inflator having a propellant for supplying inflation gas(es) to an inflatable located in a vehicle. A confining member is located adjacent to the propellan... | 01/01/2002 |
| 6264772 | Pyrotechnical, aerosol-forming composition for extinguishing fires and process for its preparation The invention relates to fire-extinguishing technology, in particular a process for producing aerosol-forming pyrotechnical compositions for extinguishing fires. The process includes the steps of mixing powdery combustible binder, oxidizing agent and dicy... | 07/24/2001 |
| 6261393 | Water resistant explosive composition A dry water resistant ANFO-explosive, containing one or more organic fuels, one or more inorganic salts, one or more water thickening agents, and a gas generating substance which develops a gas when it gets in contact with water in a blast hole, and there... | 07/17/2001 |
| 6165293 | Thixotropic IRFNA gel A thixotropic oxidizer gel comprising inhibited red fuming nitric acid (IA) as the carrier with lithium nitrate (LiNO3) suspended therein and gelled with a gellant agent of SiO2 having a mean particle size of 0.015 microns has the r... | 12/26/2000 |
| 6120626 | Dispensing fibrous cellulose material A dispersal agent for preventing agglomerating of at least one component of a material is provided. In one embodiment, the dispersal agent is part of a porosity producing material and the dispersal agent eliminates or substantially prevents agglomeration ... | 09/19/2000 |
| 6036794 | Igniter composition An igniter composition, and a method of manufacturing the igniter composin, comprised of an oxidizer dispersed in polyurethane resin using anhydrous acetone as a solvent. The polyurethane resin is cured at room temperature and granulated to form a granul... | 03/14/2000 |
| 5831209 | Aerosol-forming composition for the purpose of extinguishing fires The present invention relates to a pyrotechnical, aerosol-forming composition for the purpose of extinguishing fires in confined spaces, containing potassium nitrate in a quantity of 67-72% by mass, phenolformaldehyde resin in a quantity of 8-12% by mass ... | 11/03/1998 |
| 5821451 | Photoflash particle mixture The invention relates to a photoflash mixture comprising a mixture of particles of zirconia and at least one oxidizer, wherein said zirconia particles comprise a mixture of smaller particles between about 2 and 10 μm diameter, and larger particles betwee... | 10/13/1998 |
| 5792982 | Two-part igniter for gas generating compositions A two-part igniter for inflators used to inflate inflation devices such as air bags, lift rafts, slide chutes, and the like which includes a heterogeneous mixture of an ignition material and a consolidated mass of either i) a pyrotechnic component or ii) ... | 08/11/1998 |
| 5531843 | Explosives using glycol still bottoms Explosive compositions are disclosed which comprise a nitrate salt oxidizer and glycol still bottoms alone or in combination with water. The still bottoms function as a fuel oil replacement (FOR) in ANFO explosives. Glycol still bottoms can be mixed with ... | 07/02/1996 |
| 5500061 | Silicon as high performance fuel additive for ammonium nitrate propellant formulations The addition of silicon (Si) powder from about 0.40 to 6.00 weight percent o ammonium nitrate (AN) propellant formulations as a fuel source results in a substantial increase in performance specific impulse (Isp). Theoretical Isp of AN propellant can be enh... | 03/19/1996 |
| 5423384 | Apparatus for suppressing a fire An apparatus for suppressing a fire comprises a gas generator containing a propellant and a fire suppressant as a mixture of compacted powders. The average diameter of a fire suppressant particle is larger than the average diameter of a propellant particl... | 06/13/1995 |
| 5156779 | Process and apparatus for producing ultrafine explosive particles A method and an improved eductor apparatus for producing ultrafine explosive particles is disclosed. The explosive particles, which when incorporated into a binder system, have the ability to propagate in thin sheets, and have very low impact sensitivity ... | 10/20/1992 |
| 5151138 | Blasting composition and method A blasting composition for use in boreholes of diameter not less than 80 mm. The composition contains more than about 25% of solid oxidiser particles such as limestone ammonium nitrate. These particles are in the form of dense prills, granules or crystals... | 09/29/1992 |
| 5129972 | Emulsifiers and explosive emulsions containing same Emulsifiers are disclosed which comprise the reaction product of component (I) with component (II). Component (I) comprises the reaction product of certain carboxylic acids or anhydrides, or ester or amide derivatives thereof, with ammonia, at least one a... | 07/14/1992 |
| 5112417 | Method of controlling the increase in potlife of propellants during processing Tris(N-nitrosophenylhydroxylaminium)aluminum is employed in amounts from about 0.1% by weight to about 0.2% by weight to inhibit the polymerization reaction during propellant mixing. With a weight percent of 0.2 percent, the inhibitor inhibited polymeriza... | 05/12/1992 |
| 5104466 | Nitrogen gas generator Particles of glass or silica type material are added to pellets of gas generating material as the gas generating material is being loaded into the combustion chamber of a gas generator or inflator. When the inflator is fired, the liquids and gases produce... | 04/14/1992 |
| 5099763 | Method of blasting A blasting agent is disclosed for use in a borehole having a pressure resistant closure. The blasting agent is used in combination with a primary initiating system comprised of a detonator and an initiator for the detonator. The blasting agent is preferab... | 03/31/1992 |
| 5089069 | Gas generating composition for air bags The invention disclosed herein is a gas generating composition suitable for use in air bag systems. The gas generating composition is comprised of a solid metal azide as a fuel, an alkali nitrate as an oxidizer, and diatomaceous earth as an additive.... | 02/18/1992 |
| 5084117 | Explosive This invention relates to an explosive. It relates in particular to the manufacture of an emulsion explosive comprising a discontinuous phase which forms an oxidizing salt-containing component and a continuous phase which is immiscible with the discontinu... | 01/28/1992 |
| 5076867 | Stabilized emulsion explosive and method The invention relates to a method for stabilizing a detonable mixture of emulsion and AN or ANFO prills and to the resulting compositions. A surfactant is dissolved in a liquid organic fuel prior to adding the fuel to AN prills for forming ANFO prills, or... | 12/31/1991 |
| 5074938 | Low pressure exponent propellants containing boron Propellant grain consisting essentially of: A. from about 50% to about 75% by weight of an oxidizer consisting essentially of ammonium nitrate; B. from about 1% to about 20% by weight of a cured polymeric binder; C. from 0% to about 30% by weight of a nitrate ester... | 12/24/1991 |
| 5074940 | Composition for gas generating A gas generating composition comprises an azide of an alkali metal or an alkaline earth metal, and manganese dioxide for oxidizing the azide. The composition further includes a clay material containing at least 37% by weight of silicon dioxide and having ... | 12/24/1991 |
| 5074939 | Explosive composition The present invention relates to cap-sensitive explosive compositions, in particular to emulsion explosives doped with solid particulate ammonium nitrate which retain stability and cap-sensitivity despite containing relatively high levels of dopant.... | 12/24/1991 |
| 5071496 | Low level blasting composition A blasting agent is disclosed for use in a borehole having a pressure resistant closure. The blasting agent is used in combination with a primary initiating system comprised of a detonator and an initiator for the detonator. The blasting agent is preferab... | 12/10/1991 |
| 5041177 | Ammonium nitrate/fuel oil blasting explosive having decreased oil segregation An explosive composition comprising an explosive mixture of ammonium nitrate and fuel oil. The fuel oil is selected to provide an oil separation sufficiently low so that the explosive is detonatable. The fuel oil is also selected such that the viscosity o... | 08/20/1991 |
| 5034073 | Insensitive high explosive An explosive composition having a combination of a principal explosive, which is relatively insensitive to initiation of detonation, two mesh fractions of a sensitizing explosive which is relatively sensitive to initiation of detonation, a critical diamet... | 07/23/1991 |
