Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7958823 | Controllable digital solid state cluster thrusters for rocket propulsion and gas generation A thruster stack assembly and method for manufacturing the same is provided. The thruster stack assembly includes a plurality of grain elements having a common core region (e.g., a channel or passageway), where each grain element comprises a volume of electrically i... | 06/14/2011 |
| 7690305 | Increment charge for fin-stabilized mortar projectile The invention relates to an increment charge (4) to be placed around a tail shaft of a fin-stabilized mortar projectile (1), the increment charge (4) having a centrally located space for the tail shaft and a mounting opening in the space for mou... | 04/06/2010 |
| 7358314 | Polybenzoxazole-filled nitrile butadiene rubber compositions An insulation composition that comprises at least one nitrile butadiene rubber (“NBR”) having an acrylonitrile content that ranges from approximately 26% by weight to approximately 35% by weight and polybenzoxazole (“PBO”) fibers. The NBR may be a copolymer ... | 04/15/2008 |
| 7216832 | Method of assembling a single piece co-cured structure A method for manufacturing a composite structure is disclosed herein. The process uses a frame and selectively pressurizable forms. The forms define the interior members of the composite structure and frames define the exterior surface of the composite structure. Co... | 05/15/2007 |
| 7207254 | Launching of missiles A missile launcher comprising a canister for housing a missile and piston based launcher, the piston being arrested in the tube after launch of the missile. ... | 04/24/2007 |
| 7117797 | Pyrotechnic charge structure A pyrotechnic charge structure, in particular for use as propellant in a rocket motor, is disclosed. The charge structure has a predetermined longitudinal extension and cross sectional area adapted to the intended purpose. The pyrotechnic charge structure (1; 2; ... | 10/10/2006 |
| 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 |
| 6837164 | Propelling charge increment protector for 120mm mortar ammunition A protector for propelling charge increments on a mortar shell includes a semi-cylindrical body, the semi-cylindrical body arranged around a bottom and sides of the charge increments; two generally horseshoe shaped end plates attached to a front and a rear of the se... | 01/04/2005 |
| 6820558 | Disk-shaped propellant module A disk-shaped propellant module (6) for a propellant charge (2), which can be composed of several modules of this type. To ensure a uniform and symmetrical ignition of the propellant charge (2) for a cartridge with increased charge density (>1.2... | 11/23/2004 |
| 6691505 | Fiber-reinforced rocket motor insulation Insulation for a rocket motor is provided, as is a method for insulating a rocket motor. The insulation includes a cured elastomer and vapor-grown carbon fibers dispersed in the cured elastomer. The cured elastomer is preferably formed from a precursor co... | 02/17/2004 |
| 6421999 | Modular solid-fuel rocket charges with rigid support casings A modular solid-fuel rocket propellent charge has a combustion-chamber wall, a plurality of separate elements including frozen fuel or oxidizer, and respective rigid casings completely surrounding and enclosing the elements. Respective formations on the c... | 07/23/2002 |
| 6352030 | Gas generating eject motor A gas generating eject motor includes a case containing an ignitable low temperature gas generant material that does not produce toxic gases upon the combustion thereof. The gas generant material is generally contained with a screen enclosure housed withi... | 03/05/2002 |
| 6230626 | Flashless MK 66 rocket motor A flashless rocket propellent has a continuous potassium sulfate rod extending though the length of the propellent component. The flashless rocket propellent is particularly useful in the MK 66 Rocket Motor.... | 05/15/2001 |
| 6226979 | Propellant grain capable of generating buffered boundary layer for reducing rocket nozzle recession This rocket motor propellant grain is designed to reduce recession of at least the converging portion of a converging/diverging rocket motor nozzle. The propellant grain has an oxidizer-deficient grain portion constructed and arranged in relation to the n... | 05/08/2001 |
| 6125763 | Integral solid booster and hybrid thrust sustaining system and projectile incorporating the same A rocket according to the invention includes a motor having a fuel chamber and an oxidizer tank, a nose portion provided forward of the motor, and a nozzle surrounded by fins provided aft of the motor. The fuel chamber is provided with a relatively centra... | 10/03/2000 |
| 6101948 | Method of manufacturing solid rocket motors A method for manufacturing solid rocket motors comprises placing a mandrel having at least one collapsible solid slot former positioned thereon substantially centrally along the axis of a rocket case, casting uncured solid rocket propellant about the mand... | 08/15/2000 |
| 5808231 | Solid propellant combustion apparatus Solid propellant combustion apparatus such as a rocket motor, incorporating a combustion termination valve for providing two combustion phases from a single propellant charge system, the valve comprising a valve body (50) surrounding an opening (52) in th... | 09/15/1998 |
| 5728633 | Interpenetrating network compositions and structures Structure, composition and method in which a fiber reinforcement is impregnated with an interpenetrating network of a light cure resin and a thermosetting resin which are independently curable, enabling autobody component repair, electronic assembly bondi... | 03/17/1998 |
| 5714711 | Encapsulated propellant grain composition, method of preparation, article fabricated therefrom and method of fabrication A propellant grain composition for use in solid fuel rocket engines comprises a first reactant component consisting of an oxidizer. A polymeric barrier coating encapsulates the first reactant component and a second reactant component comprising a reducer ... | 02/03/1998 |
| 5682009 | Propellant containing a thermoplatic burn rate modifer There is disclosed a propellent having a deterred burn rate. The propellent is a particulate containing an energetic binder base and a thermoplastic burn deterrent. The energetic binder has in impetus (energy) in excess of 200,000 foot pounds per pound (m... | 10/28/1997 |
| 5524544 | Nitrocellulose propellant containing a cellulosic burn rate modifier There is disclosed a propellent having a deterred burn rate. The propellent is a particulate containing a nitrocellulose base and a cellulosic thermoplastic deterrent, preferably cellulose acetate butyrate or cellulose acetate propionate. The deterrent is... | 06/11/1996 |
| 5423179 | Solid fuel ramjet engine for a spin-stabilized projectile With the intention of achieving more stable combustion in solid-fuel ramjets, and particularly in the case of ramjets with spinning application, it is proposed that the inner surface of the ramjet fuel element (8) is provided with raised surfaces, or land... | 06/13/1995 |
| 5413023 | Elastomeric prepreg roving composite An elastomeric prepreg wherein a carrier, whether roving, yarn, broad goods or tape, is impregnated with an uncured elastomeric rubber system which may include the addition of modifiers to enhance the properties of the coating. The prepreg is capable of b... | 05/09/1995 |
| 5398612 | Nitrate ester stabilizing layer for propellant grain Compositions and methods for increasing the storage life of a propellant grain by reducing the rate of decomposition of its nitrate ester components. A nitrate ester stabilizer is placed in a layer adjacent to a nonburning surface of the propellant grain.... | 03/21/1995 |
| 5386777 | Rocket motor construction from porous binder core Rocket motors are constructed by encasing a solid porous poly(vinyl alcohol) core in the shape of the propellant grain with motor casing material in the same manner as motor casing material is conventionally applied over a disposable or removable mandrel.... | 02/07/1995 |
| 5386776 | Bore mitigants for solid propellant rocket motors Methods and materials for modifying rocket motors to render them safer are disclosed. The invention is primarily related to placing within the bore of a rocket motor a sufficient quantity of a material mitigant such that if the rocket motor receives an un... | 02/07/1995 |
| 5379699 | Active spray rocket propellant ignition controller An igniter for solid fuel rockets in which hot gases from an initiator are hanneled to drive a piston against a reservoir of combustion modifying fluid, like ethylene glycol, so as to spray the fluid onto the propellant grain just before ignition. After th... | 01/10/1995 |
| 5377593 | Interpenetrating network combination of ultraviolet and thermally cured rocket motor liner composition and method An interpenetrating network combination of ultraviolet and thermally curable rocket motor liner formulation comprising an optional solid filler, at least one ultraviolet curable polymer, an optional ultraviolet reactive diluent, at least one thermally cur... | 01/03/1995 |
| 5353709 | Method for improving the mechanical stressability of ammunition bodies with shaped charges A method is described for improving the mechanical stressability of ammunition bodies, particularly shaped charges, which are highly accelerated and/or subjected to shock waves by coating the contacting portion of the cavity. In a first step of the method... | 10/11/1994 |
| 5320043 | Low-vulnerability explosive munitions element including a multicomposition explosive charge, and method for obtaining a blast and/or bubble effect The invention relates to a low-vulnerability explosive munitions element comprising a casing containing a multicomposition explosive charge, the innermost layer of which is a composite explosive comprising a filled polyurethane or polyester polymer matrix... | 06/14/1994 |
| 5269224 | Caseless utilized ammunition charge module A unitary propellant charge module for use in separate ammunition comprises a combustible container having a generally hollow cylindrical shape, a generally cylindrical charge body of interconnected compacted spheroidal propellant grains disposed within t... | 12/14/1993 |
| 5251549 | Multi-perforated divided propellent powder sticks, manufacturing equipment and its use The present invention relates to propellent powders in multi-perforated sticks (1) divided by radial slits (7) cutting the peripheral channels (6) of the stick (1) but allowing a continuous cover (8) to remain around its central channel (5). The invention... | 10/12/1993 |
| 5189247 | Low-vulnerability explosive munitions element including a multi-composition explosive charge, and method for obtaining a blast and/or bubble effect The invention relates to a low-vulnerability explosive munitions element comprising a casing containing a multicomposition explosive charge, the innermost layer of which is a composite explosive comprising a filled polyurethane or polyester polymer matrix... | 02/23/1993 |
| 5085725 | Method of chemical bonding of solid propellant grains to the internal insulation of an interceptor motor The trimer of 1,6-hexanediisocyanate, which has the chemical name in acconce with (International Union of Pure and Applied Chemistry) (IUPAC) nomenclature of 7-aza-8-oxo-7[1-isocyanato-6-oxohexyl]pentadecanediisocyanate, is employed in a method of c... | 02/04/1992 |
| 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 |
| 5074216 | Infrared signature enhancement decoy This invention generally relates to aircraft countermeasures and more particularly to an infrared decoy flare which operates in a substantially aerodynamic configuration and effectively shields aerodynamic cooling associated with its operation when ejecte... | 12/24/1991 |
| 5007343 | Rocket motor insulation and like made with thin tacky ribbon A method of making an elastomer lined vessel or portion of such vessel is disclosed. The method comprises causing a thin, tacky ribbon comprising an elastomer (preferably curable) to continuously so encircle a center rotational axis of a mandrel as to adj... | 04/16/1991 |
| 4961380 | Energetic azido eutectics A low freezing point eutectic solid propellant plasticizer composition component comprising a mixture of 1,5-dinitrato-3-nitrazapentane and 1,5-diazido-3-nitrazapentane having a eutectic freezing point below about -25° C.... | 10/09/1990 |
| 4953476 | Siloxane-based elastomeric interceptor motor insulation A method of installing a polysiloxane insulation in an interceptor rocket motor comprises of applying an adhesive composition, which is compatible with a composite rocket motor case and polysiloxane with which it interfaces; applying a polysiloxane in an ... | 09/04/1990 |
| 4915883 | Method of and apparatus for purging an annular bayonet An annular bayonet vacuum cup allows a vacuum to be pulled on an annular bayonet and the bayonet to be filled with propellant that is devoid of air. The vacuum cup is transparent/translucent and allows the propellant to be seen as it leaves the exit end o... | 04/10/1990 |
