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| Number | Title | Issue Date |
| 7335270 | Gas generating composition and gas generator A stable, low-temperature ignition gas generating composition has a heating starting temperature of 170 to 220° C. The gas generating composition includes ammonium perchlorate, a chlorine scavenger, and microcrystalline carbon powder. The chlorine scavenger is sodi... | 02/26/2008 |
| 7188567 | Gas generation system A gas generator (24; 140) may be used in an inflatable member system (20) which includes an inflatable member (22) expandable from a stowed condition to a deployed condition. The generator may include a flexible container (30; 150) within the in... | 03/13/2007 |
| 7137244 | Reactor for decomposition of ammonium dinitramide-based liquid monopropellants and process for the decomposition The present invention relates to a reactor for the decomposition of ammonium dinitramide-based liquid monopropellants into hot, combustible gases for combustion in a combustion chamber, and more particularly a rocket engine or thruster comprising such reactor and a ... | 11/21/2006 |
| 7094296 | Gas generants containing silicone fuels Gas generating compositions are provided containing silicone, a metal or nonmetal perchlorate oxidizer, and a coolant selected from the group including metal carbonates, metal bicarbonates, metal oxalates, and metal hydroxides. These compositions exhibit rapid and s... | 08/22/2006 |
| 7040657 | Method of reducing nitrogen oxide in hybrid inflator The present invention provides a method of reducing an amount of NOx generated in actuation of a hybrid inflator. The present invention is a method of reducing nitrogen oxide which is generated in actuation of a hybrid inflator for an inflatable safety system of a v... | 05/09/2006 |
| 7003942 | System and method of controlling pressure oscillations of hydrodynamic origin for a solid propellant thruster The invention provides a system for passively controlling pressure oscillations of hydrodynamic origin in a solid propellant thruster comprising a body containing a charge of solid propellant, the system comprising at least one insert disposed in the thruster body t... | 02/28/2006 |
| 7000398 | Ramjet engine combustion chamber and ramjet engine equipped with same The invention concerns a combustion chamber whereof the inner wall (17)is made at least partly of a thermostructural composite material, which is porous to the fuel passing through the double wall (14); and the porosity of said inner wall (17) i... | 02/21/2006 |
| 6968673 | Cool gas generator and ultra-safe rocket engine A gas generator or rocket engine includes: a first storage tank configured to contain a high-pressure liquid propellant; a nozzle connected to the first storage tank; a heat source connected between the first storage tank and the nozzle and configured to add heat to... | 11/29/2005 |
| 6964154 | Axisymmetric, throttleable non-gimballed rocket engine A rocket engine assembly is provided for a vertically launched rocket vehicle. A rocket engine housing of the assembly includes two or more combustion chambers each including an outlet end defining a sonic throat area. A propellant supply for the combustion chambers... | 11/15/2005 |
| 6957526 | Pressure-actuated toy rocket system A pressure-actuated rocket system comprises a bottom base, a detonator and a rocket body. A top base is placed on a top surface of the bottom base. At least one through hole is located on a side of the top base and extended to an opening of the top surface. The holl... | 10/25/2005 |
| 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 |
| 6904749 | Polyoxymethylene as structural support member and propellant A vehicle includes at least one polyoxymethylene structural support member. The polyoxymethylene structural support member includes a polyoxymethylene component that is a propellant that provides thrust to the vehicle upon pyrolysis or combustion of the polyoxymethy... | 06/14/2005 |
| 6807804 | Hybrid rocket motor having a precombustion chamber A hybrid rocket motor is provided with a precombustion chamber supplied with propellant from separate fuel and oxidizer sources. The propellant can be in the form of gas or liquid and injected substantially tangentially into the head end of the hybrid motor adjacent... | 10/26/2004 |
| 6679049 | Hybrid rocket motor having a precombustion chamber A hybrid rocket motor is provided with a precombustion chamber supplied with propellant from separate fuel and oxidizer sources. The propellant can be in the form of gas or liquid and injected substantially tangentially into the head end of the hybrid mot... | 01/20/2004 |
| 6640536 | Hybrid rocket motor using a turbopump to pressurize a liquid propellant constituent A hybrid rocket motor includes a storage tank which stores an oxidizer under relatively low pressure, a turbopump preferably directly coupled to an outlet of the storage tank which pressurizes the oxidizer to a relatively high pressure, a combustion chamb... | 11/04/2003 |
| 6632378 | Nitrate ester plasticized energetic compositions, method of making and rocket motor assemblies containing the same A nitrate ester plasticized energetic composition in which the binder is made of, prior to curing, lower alkylene glycol prepolymer blocks end-capped with ethylene glycol monomers and/or oligomers. The end-capped prepolymer blocks are preferably difunctio... | 10/14/2003 |
| 6601380 | Hybrid rocket engine and method of propelling a rocket A hybrid rocket engine and a method for propelling a rocket utilizing a vortex flow field. The flow field includes an outer fluid vortex spiraling toward a closed end of the flow field generating apparatus and an inner fluid vortex substantially concentri... | 08/05/2003 |
| 6446427 | Solid fuel regression rate control method and device The present invention relates to a method and device for controlling the solid fuel regression rate of a solid fuel ramjet engine. In a preferred embodiment of the present invention, pressure oscillations are excited using active, closed-loop control to v... | 09/10/2002 |
| 6367244 | Propulsion system containing a mixed-phase propellant and a method for propelling an object with the same A propulsion system with at least one storage chamber containing at least one solid propellant and at least one fluid propellant is disclosed. The fluid propellant is retained under pressurized conditions, such that depressurization of the storage chamber... | 04/09/2002 |
| 6241281 | Metal complexes for use as gas generants Gas generating compositions and methods for their use are provided. Metal complexes are used as gas generating compositions. These complexes are comprised of a metal cation template, a neutral ligand containing hydrogen and nitrogen, sufficient oxidizing ... | 06/05/2001 |
| 6217682 | Energetic oxetane propellants An energetic solid rocket motor propellant having one or more plateau regions of low operating pressure exponent is disclosed. The propellant is formulated from ingredients including an energetic polyoxetane, an effective amount of a plasticizer, an inorg... | 04/17/2001 |
| 6073438 | Preparation of eutectic mixtures of ammonium nitrate and amino guanidine nitrate A eutectic solution of ammonium nitrate and either aminoguanidiine nitrate (AGN) or guanidine nitrate (AN) in the form of a present pellet is used to generate a particulate-free, non-toxic, odorless and colorless gas that is useful wherever an immediate s... | 06/13/2000 |
| 5970703 | Metal hydrazine complexes used as gas generants Gas generating compositions and methods for their use are provided. Metal complexes are used as gas generating compositions. These complexes are comprised of a metal cation template, a neutral ligand containing hydrogen and nitrogen, and sufficient oxidiz... | 10/26/1999 |
| 5909001 | Method of generating a high pressure gas pulse using fuel and oxidizer that are relatively inert at ambient conditions A high pressure pulsed gas source for accelerating a projectile along a gun barrel comprises a structure including a high voltage electrode for establishing axial electrical discharges in corresponding axial gaps behind an outlet where the projectile is l... | 06/01/1999 |
| 5850053 | Eutectic mixtures of ammonium nitrate, guanidine nitrate and potassium perchlorate A eutectic solution of ammonium nitrate and either aminoguanidine nitrate (AGN) or guanidine nitrate (AN) in the form of a pressed pellet is used to generate a low particulate non-toxic, odorless and colorless gas that is useful wherever an immediate sour... | 12/15/1998 |
| 5811725 | Hybrid rocket propellants containing azo compounds Hybrid rocket propellants are disclosed that contain azo compounds, i.e., compounds containing the group R--N.dbd.N--R' as part of their structure, where R and R' represent a variety of groups including aliphatic, alicyclic and heterocyclic groups. The az... | 09/22/1998 |
| 5771679 | Aluminized plateau-burning solid propellant formulations and methods for their use Solid rocket motor propellants which burn at at least one stable burn rate over at least one corresponding pressure range (i.e the burn rate v. pressure curve contains at least one area of low pressure exponent with respect to a normal curve) are describe... | 06/30/1998 |
| 5765361 | Hybrid-LO2-LH2 low cost launch vehicle A low-cost rocket or thruster has a low-cost propellant injector, in which fluid fuel and oxidizer are injected into a combustion chamber. The walls of the combustion chamber are protected from the high temperatures of the combustion by a grain of solid p... | 06/16/1998 |
| 5762746 | Method of internally insulating a propellant combustion chamber A composition consisting essentially of a polyphosphazene binder having the following repeating units: ##STR1## wherein n is from about 20 to about 50,000, A is selected from --O-- and --NH--, and R1 and R2 are independently sel... | 06/09/1998 |
| 5735118 | Using metal complex compositions as gas generants Gas generating compositions and methods for their use are provided. Metal complexes are used as gas generating compositions. These complexes are comprised of a metal cation template, a neutral ligand containing hydrogen and nitrogen, and sufficient oxidiz... | 04/07/1998 |
| 5727368 | Hybrid motor system with a consumable catalytic bed a composition of the catalytic bed and a method of using A method, device and composition for achieving ignition and sustained combustion using a solid consumable catalytic bed (CCB) is described. The CCB accomplishes this by decomposition of an injected fluid. Initially this reaction is catalytic or hypergolic... | 03/17/1998 |
| 5711146 | Hydrogen peroxide decomposition A method for decomposing hydrogen peroxide which comprises contacting the hydrogen peroxide with a catalyst having a surface consisting of a mixture of ruthenium with at least one metal of the group consisting of iridium and platinum in which the rutheniu... | 01/27/1998 |
| 5592812 | Metal complexes for use as gas generants Gas generating compositions and methods for their use are provided. Metal complexes are used as gas generating compositions. These complexes are comprised of a cationic metal template, sufficient oxidizing anion to balance the charge of the complex, and a... | 01/14/1997 |
| 5582001 | Hybrid rocket combustion enhancement The combustion of a hybrid engine is improved by continuously injecting into a precombustion chamber a hypergolic fluid such as triethyl aluminum which exothermically reacts with and vaporizes the oxidizer such as liquid oxygen. The prevaporized oxidizer ... | 12/10/1996 |
| 5579634 | Use of controlled burn rate, reduced smoke, biplateau solid propellant formulations Solid rocket motor propellant formulations are provided which are capable of burning at at least two selected burn rates. The burn rate is controlled by controlling the pressure at which the propellant burns. For example, it is possible to mechanically mo... | 12/03/1996 |
| 5566543 | PVC-based gas generant for hybrid gas generators The amount of particulate matter that is forced into the passenger compartment of an automobile by the deployment of an air bag as it protects the lives of occupants is reduced by improving the filterability of the combustion products of a composition for... | 10/22/1996 |
| 5487267 | Suppression of infrared radiation emissions from jet engines A reduction in the emission of infrared radiation by the engine of a jet aircraft can be achieved by employing a low molecular weight monohydric alcohol, having a luminometer number of at least about 200 as at least a portion of the fuel. Additional reduc... | 01/30/1996 |
| 5485722 | Catalytic decomposition of hydroxylammonium nitrate-based monopropellants This invention relates to a process for the catalytic decomposition of HAN-based monopropellants using a platinum group or transition metal group catalyst that is preferably a supported metal catalyst and/or wire mesh/expanded metal mesh catalyst for the ... | 01/23/1996 |
| 5339625 | Hybrid rocket motor solid fuel grain A hybrid rocket motor includes a solid propellant fuel grain component which incorporates fuel strengthening agents or mechanical retention devices. In one embodiment, the hybrid fuel formulation is a modified elastomeric polyurethane reaction product bas... | 08/23/1994 |
| 5339624 | Ramjet propellants The present invention relates to a general method for increasing the energy conversion from metal-containing rocket and ramjet propellants. According to the invention, this is achieved by means of combining the combustion of the fuel with exothermic inter... | 08/23/1994 |
