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| Number | Title | Issue Date |
| 6195984 | Rocket engine thrust chamber assembly A thrust chamber assembly for liquid fueled rocket engines and the method of making it wherein a two-piece mandrel having the configuration of an assembly having a combustion chamber portion connected to a nozzle portion through a throat portion is wrappe... | 03/06/2001 |
| 6164060 | Combustion chamber/nozzle assembly and fabrication process therefor An integral, lightweight combustion chamber/nozzle assembly for a rocket engine has a refractory metal shell defining a chamber of generally frusto-conical contour. The shell communicates at its larger end with a rocket body, and terminates at its smaller... | 12/26/2000 |
| 6162019 | Load transfer mechanism for a turbine disk A load transferring system wherein a composite turbine disk mounted on a shaft is in contact with a backup disk which is secured to the shaft. The turbine disk is made of layers of woven carbon fibers held in a rigid configuration in a ceramic matrix. The... | 12/19/2000 |
| 6142483 | Gasket assembly for sealing mating surfaces A gasket assembly for securing a pair of surfaces together wherein an electrically conductive gasket base having a central opening is provided with a pair of layers secured to opposite sides of the gasket base, with the layers being a fusible alloy, a bra... | 11/07/2000 |
| 6116020 | Injector for liquid fueled rocket engine An injector for liquid fueled rocket engines wherein a generally flat core having a frustoconical dome attached to one side of the core to serve as a manifold for a first liquid, with the core having a generally circular configuration having an axis. The ... | 09/12/2000 |
| 6091345 | Synchronized target subsystem for automated docking systems A synchronized target subsystem for use in an automated docking or station keeping system for docking a chase vehicle with a target vehicle wherein the chase vehicle is provided with a video camera which provides adjacent frames each having a predetermine... | 07/18/2000 |
| 6013996 | Precision stop control for motors An improved stop control system and method are provided for a motor having a drive mechanism in which the motor is coupled to a motor controller that controls the speed and position of the drive mechanism using a first signal indicative of a commanded pos... | 01/11/2000 |
| 5891312 | Enhanced vacuum arc vapor deposition electrode A process for forming a thin metal coating on a substrate wherein a gas stream heated by an electrical current impinges on a metallic target in a vacuum chamber to form a molten pool of the metal and then vaporize a portion of the pool, with the source of... | 04/06/1999 |
| 5780594 | Biologically active protein fragments containing specific binding regions of serum albumin or related proteins In accordance with the present invention, biologically active protein fragments can be constructed which contain only those specific portions of the serum albumin family of proteins such as regions known as subdomains IIA and IIIA which are primarily resp... | 07/14/1998 |
| 5735808 | Contamination sampling device A contamination sample collection device has a wooden dowel with a cotton swab at one end, the cotton being covered by a nylon cloth and the wooden dowel being encapsulated by plastic tubing which is heat shrunk onto the dowel and onto a portion of the co... | 04/07/1998 |
| 5654599 | Dynamically timed electric motor A brushless DC motor including a housing having an end cap secured thereto. The housing encloses a rotor, a stator and a rotationally displaceable commutation board having sensors secured thereon and spaced around the periphery of the rotor. An external r... | 08/05/1997 |
| 5644224 | Dual brushless resolver rate sensor A resolver rate sensor is disclosed in which dual brushless resolvers are mechanically coupled to the same output shaft. Diverse inputs are provided to each resolver by providing the first resolver with a DC input and the second resolver with an AC sinuso... | 07/01/1997 |
| 5585466 | Crystals of serum albumin for use in genetic engineering and rational drug design Serum albumin crystal forms have been produced which exhibit superior x-ray diffraction quality. The crystals are produced from both recombinant and wild-type human serum albumin, canine, and baboon serum albumin and allow the performance of drug-binding ... | 12/17/1996 |
| 5529281 | Dual-latching solenoid-actuated valve assembly A tube-type shutoff valve is electrically positioned to its open or closed position by a concentric electromagnetic solenoid. The valve is dual latching in that the armature of the solenoid maintains the sliding tube of the valve in an open or closed posi... | 06/25/1996 |
| 5517170 | Multilayer thin film hall effect device A Hall effect device and a method of obtaining a magnetic field map of a magnetic body with the Hall effect device. The device comprises: (1) a substrate, (2) a first layer having a first Hall coefficient deposited over the substrate and (3) a second laye... | 05/14/1996 |
| 5490831 | Selectively lockable knee brace A knee brace for aiding in rehabilitation of damaged leg muscles includes upper and lower housings normally pivotable one relative to the other about the knee joint axis of a patient. The upper housing is attachable to the thigh of the patient above the k... | 02/13/1996 |
| 5490221 | Digital data registration and differencing compression system A process for X-ray registration and differencing results in more efficient compression. Differencing of registered modeled subject image with a modeled reference image forms a differenced image for compression with conventional compression algorithms. Ob... | 02/06/1996 |
| 5490075 | Global positioning system synchronized active light autonomous docking system A Global Positioning System Synchronized Active Light Autonomous Docking System (GPSSALADS) for automatically docking a chase vehicle with a target vehicle comprising at least one active light emitting target which is operatively attached to the target ve... | 02/06/1996 |
| 5471031 | Chamber free plasma welding root side purging method and apparatus A method and apparati are presented for non-chamber root side purging in fusion welding of oxygen reactive metals which require that the molten weld zone and local solid areas of the weld seam remaining at high temperatures be shielded from normal atmosph... | 11/28/1995 |
| 4781073 | Adjustable antibacklash gear system An antibacklash gear system wherein a pair of gears mounted for limited movement therebetween are biased by a spring to move the teeth of the gears out of register, the spring serving as a link between two levers mounted on one of the gears. The position ... | 11/01/1988 |
| 4254233 | Acrylic fiber and the method for making the same A reinforced acrylic fiber and the method for making the same wherein a diisocyanate selected from the group consisting of: ##STR1## is polycondensed to form a polycarbodiimide in the presence of a spinning dope made up of dimethylacetamide containin... | 03/03/1981 |
| 4251355 | Apparatus for separating snakeskins and fines from polymeric pellets Apparatus for separating snakeskins and fines from pellets in a collection of polymeric material wherein a first nozzle impinges the collection of polymeric material in a stream of air on a moving screen having a mesh size such that the screen will allow ... | 02/17/1981 |
| 4250275 | Reinforced acrylic fiber and method for making the same A reinforced acrylic fiber and the method for making the same wherein a diamine selected from the group consisting of ethylene diamine, piperazine, and hexamethylene diamine is reacted with a diisocyanate selected from the group consisting of: ##STR1... | 02/10/1981 |
| 4218358 | Process for removing unreacted monomers from polymerization slurries The method of recovering unreacted mono-olefinic monomers from an acrylonitrile polymerization slurry containing 30 to 50 weight percent of polymer solids and 70 to 50 weight percent of unreacted monomers wherein the slurry is first diluted with a solvent... | 08/19/1980 |
| 4217321 | Method for making bicomponent polyester yarns at high spinning rates The method of making a polyethylene terephthalate/polybutylene terephthalate bicomponent filament having improved bulking properties, wherein such a bicomponent filament is spun at a spinning speed in excess of about 3,600 meters per minute and is then pa... | 08/12/1980 |
| 4191715 | Flame retarding compound A compound having the formula ##STR1## This compound is useful in enhancing the flame retardancy of polyesters.... | 03/04/1980 |
| 4171001 | Method for making a weft and a wig made from the same A wig and a method of making a weft for use in making the wig wherein 5 to 50 weight percent of a first modacrylic fiber having a denier of 30 to 50 and a shrinkage of 5 to 20 percent at a temperature of 120° C. is blended with 95 to 50 weight percent of... | 10/16/1979 |
| 4168195 | Method of autogenously bonding a nonwoven polyamide web The method of autogenously bonding a nonwoven web made from polyamide filaments wherein the filaments contain 0.1 to 20 weight percent of an activating agent and sufficient moisture that the molar ratio of water to activating agent in the filaments is abo... | 09/18/1979 |
| 4163089 | Method of polymerizing acrylonitrile with certain acidic monomers The process of continuously polymerizing acrylonitrile and other non-acidic mono-olefinic monomers with small amounts of certain acidic mono-olefinic monomers copolymerizable with acrylonitrile wherein the acrylonitrile and other non-acidic mono-olefinic ... | 07/31/1979 |
| 4153787 | Method for removing unreacted monomers from a slurry In a process wherein an acrylonitrile polymerization slurry made up of polymer solids, unreacted monomers and water is passed downward through a column containing a plurality of perforated trays for the purpose of removing unreacted monomers from the slur... | 05/08/1979 |
| 4142279 | Apparatus for treating a tow of filaments with a liquid An apparatus for treating a tow of filaments with a fluid, the apparatus forming a tow path therethrough and having a pair of guide surfaces positioned on opposite sides of the tow in series with each other in such a manner that the two path has at least ... | 03/06/1979 |
| 4138364 | Catalyst for polyesters and method for making the same A catalyst suitable for use in the preparation of fiber-forming polyesters and the method of making the same, wherein a tetraalkyl ammonium hydroxide is reacted with germanium dioxide, the reaction product being useful as a catalyst in the formation of fi... | 02/06/1979 |
| 4137393 | Polyester polymer recovery from dyed polyester fibers Polyester polymer is recovered from polyester fibers (in the form of filaments, yarns or fabrics and the like, both dyed and undyed), and used in the production of new undyed fibers, films, and other polymer products by the process of stripping the dye fr... | 01/30/1979 |
| 4127566 | Process for preparation of flame retardant polyesters A process for preparation of flame retardant, fiber-forming polyesters by polycondensing a glycol phthalate and a phosphine oxide in the presence of the reaction product of germanium dioxide and a tetraalkyl ammonium hydroxide.... | 11/28/1978 |
| 4127565 | Process for making fiber-forming polyesters A flame-retardant, easily dyeable polyester and the process for preparing the same by polycondensing a glycol phthalate prepolymer with a phosphine oxide and dye improver selected from the group consisting of where R is an alkyl group containing an average of ... | 11/28/1978 |
| 4126412 | Method for stabilizing brightened modacrylic fibers The method of preventing color-degrading interactions between certain optical brighteners and filaments made from a modacrylic polymer containing as a copolymer a halogenated ethylenically unsaturated monomer, the optical brightener preferably having the ... | 11/21/1978 |
| 4119614 | Process for making polyester polymer The method of making a polyester polymer by polycondensing a glycol phthalate prepolymer in the presence of a germanium dioxide/tetraalkyl ammonium hydroxide catalyst.... | 10/10/1978 |
| 4119747 | Method for applying a finish to a tow The method of applying a finish to a tow of filaments, wherein the tow is advanced along a path through a housing having at least two bends in opposite direction to each other and passing a liquid containing a finish along the walls of the housing to the ... | 10/10/1978 |
| 4118190 | Method for annealing acrylonitrile-containing filaments The method of annealing a tow of acrylonitrile-containing filaments, wherein the tow is advanced along a path through a housing under tension less than the shrinking tension of the tow, the path having at least two bends in opposite directions to each oth... | 10/03/1978 |
| 4118187 | Fabric dye stripping, separation and recovery of polyester Polyester polymer is recovered from mixed collections of fibers in the form of fibers, filaments, yarns, or fabrics (including dyed or undyed fibers other than polyester fibers as well as dyed polyester fibers) and used in the production of new undyed fib... | 10/03/1978 |
