| Patent Number |
Title Of Patent |
Date Issued |
| 5296296 |
Ordered polymer/sol-gel microcomposite laminates with glass adhesive |
March 22, 1994 |
| Provided is a method for laminating PBZT/fusible sol-gel glass microcomposite film layers by applying an adhesive of fusible sol-gel glass to the bonding surfaces of such films and compressing the film layers and the so-formed adhesive layer therebetween, at sufficient temperature an |
| 5293211 |
Microreflectometer system |
March 8, 1994 |
| The microreflectometer system, forming a 0.01 mm.sup.2 area spot, scans a mirror coating for defects of a mirror having a diameter of about 30 centimeters. Tens of thousands of reflectivity measurements are automatically taken as a computer controlled three dimension stage having the |
| 5293114 |
Frequency measurement receiver with means to resolve an ambiguity in multiple frequency estimati |
March 8, 1994 |
| In multiple frequency estimation, the bandwidth and resolution of Fast Fourier Transform (FFT) based frequency estimators are limited by A/D converter sampling rate constraints and also by real-time computational requirements. The disclosed configuration uses a Modified Chinese Remai |
| 5293046 |
Optical high pressure sensor |
March 8, 1994 |
| A high pressure sensor which uses a ruby as a pressure sensor is disclosed. This system includes a high pressure Hg lamp which is used to excite the ruby R1 and R2 lines because it has a spectrum which is a good match to the ruby absorption spectrum. The Hg lamp output is filtered to pas |
| 5292596 |
Force-transmitting surfaces of titanium protected from pretting fatigue by a coating of Co-Ni-Fe |
March 8, 1994 |
| A method is disclosed for protecting a force-transmitting or force-receiving surface of titanium from fretting fatigue. The method constitutes coating the surface with a coating of an alloy of nickel, cobalt, and iron. |
| 5292215 |
Metal bolt with a composite core for enhancement |
March 8, 1994 |
| The improved metal matrix bolt has a metal shell having the bolt head, shank and threads thereon. The shell has a longitudinal space therein wherein a composite core of fibers is bonded. The fibers are divided into two groups: a longitudinal group and a spiral group. The spiral group |
| 5291333 |
Alignment system for a segmented telescope |
March 1, 1994 |
| A new coronagraph sufficiently increases the contrast ratio between the infrared image of a nonsolar star and a possible orbiting nonsolar planet to make imaging of such a planet possible. The coronagraph is used with an infrared telescope system having a square objective or aperture. Un |
| 5291146 |
Transverse traveling wave amplifier |
March 1, 1994 |
| The RF amplifier has a single waveguiding structure extending longitudinally in a direction of propagation of electromagnetic waves, in which density of an injected current flow is not RF modulated, and a transverse E-field component vector of the electromagnetic waves interacts with |
| 5291125 |
Instantaneous frequency measurement (IFM) receiver with two signal capability |
March 1, 1994 |
| An IFM (Instantaneous Frequency Measurement) receiver is disclosed that can process two simultaneous signals for electronic warfare application. Three IFM receivers are employed (cooperating in the 2 to 4 GHZ range) and have three filters in front of them. Filter 1 is a 2-4 GHz band pass |
| 5290989 |
Weld root shield device and method |
March 1, 1994 |
| A weld root shield device includes an inert gas supply tube having an open end together with a toroidal inert gas supply chamber having orifices therein surrounding the open end of the gas supply tube for replacing air that could be aspirated by inert gas emerging from the open end of th |
| 5289996 |
Aircraft windshield system with frangible panel for aircrew emergency escape |
March 1, 1994 |
| An improved aircraft cockpit canopy for allowing thru-the-canopy ejection of an ejection seat is disclosed. The canopy includes windshield and side sections of transparency panels tough enough to withstand high energy bird strikes and a portion of an overhead section of the canopy made o |
| 5289198 |
Double-folded monopole |
February 22, 1994 |
| A double-folded monopole is used on a linear antenna to produce a traveling-wave distribution of current. The double fold is positioned one-quarter wavelength from the end of the antenna. The resultant antenna has three radiating elements that are orthogonal with respect to each othe |
| 5287302 |
Superconducting optically reconfigurable magnetic device |
February 15, 1994 |
| A superconducting optically reconfigurable device (SORD) wherein predetermined and optically achieved patterns of superconducting material generate Meissner effect magnetic flux to achieve control of physical characteristics in local areas of an adjacent film of electromagnetic energ |
| 5285685 |
Perceived attitude apparatus and method |
February 15, 1994 |
| An arrangement for achieving reliable communication of perceived attitude information from the test subject in an environmentally controlled spatial disorientation study. The communications system includes a talking with the hand protocol wherein the orientation of the test subject's ope |
| 5285209 |
Angle-of-arrival measurement via spectral estimation of radar time-of-arrival periodicities |
February 8, 1994 |
| The method provides the capability to estimate the angle-of-arrival (AOA) of radar pulses with respect to a ground or airborne based platform. It utilizes a spectral estimation technique which extracts the periodic properties of radar signals whose time-of-arrivals (TOAs) have been tagge |
| 5284310 |
Parachute line severing apparatus |
February 8, 1994 |
| A parachute extraction line severing apparatus comprising an extensible cutting head depending by means of a power cord from a power cord take-up assembly The cutting head includes a housing having one or more cutting devices and a viper line extending about a parachute extraction line a |
| 5284058 |
Dual beam complex modulus apparatus |
February 8, 1994 |
| System and method for measuring complex shear or Young's modulus of a polymeric material are described wherein first and second beams of preselected lengths and different thicknesses are disposed in parallel spaced relationship firmly held at first ends thereof and first and second s |
| 5284019 |
Double dome, single anular combustor with daisy mixer |
February 8, 1994 |
| This disclosure describes a single shell, double dome combustor design configuration with the intermediate dividing wall between the two annuli removed, thereby reducing weight and cost, and improving durability. An annular daisy type mixer is positioned between the domes to improve the |
| 5283488 |
Rotor cooling structure |
February 1, 1994 |
| A rotor structure for an electrical generator, motor or the like is described which comprises a rotatable generally cylindrically shaped heat pipe defining an internal vapor chamber having an evaporator end and a condenser end, a plurality of radial fins regularly spaced on the perip |
| 5282985 |
Lubricant coatings |
February 1, 1994 |
| Provided are methods for fabricating solid lubricant coatings capable of operating over a temperature range of at least 0.degree. to 600.degree. C. One embodiment comprises simultaneously applying a first solid lubricant and a second solid lubricant to a bearing surface, wherein the firs |
| 5277956 |
Enhanced reinforced honeycomb structure |
January 11, 1994 |
| An enhanced reinforced honeycomb structure is provided when at least one thread is stitched in a given pattern along each linear group of cells in the honeycomb structure. This reinforcement reduces the weight of the attached panels since additional structural strength is provided by the |
| 5277693 |
Flight activated anti-G valve (FAAGV) |
January 11, 1994 |
| A conventional mass-spring inertially controlled anti-G suit valve is modified by adding a first electrically actuated solenoid over the mass and valve spindle and a second electrically actuated solenoid over an anti-G suit exhaust port added to the modified anti-G suit valve. The fi |
| 5277661 |
Titanium MMC fanshaft with superalloy end attachment |
January 11, 1994 |
| A first hollow titanium MMC driveshaft portion is diffusion bonded to a third portion which in turn is fastened to a second superalloy portion via circumferentially positioned pins which are tightly fitted within aligned holed formed in the second and third driveshaft portions. The first |
| 5276419 |
Air-code magnetic flux guide |
January 4, 1994 |
| A device to guide, shape, contain, or concentrate magnetic flux comprises a tube or conduit made of superconducting material to constrain the path of magnetic flux and guide it to a target volume. Below the transition point the material exhibits no resistance to electrical current flow a |
| 5275132 |
Timed primate roto-positioning method for preventing trauma and for simulating weightlessness |
January 4, 1994 |
| A method, and apparatus, for rotating immobilized subhuman primate animal test subjects about one or more axes according to a preselected sequence to simulate weightlessness and to minimize trauma during simulated zero or micro-gravity studies is disclosed. The method includes intermitte |
| 5274246 |
Optical modulation and switching with enhanced third order nonlinearity multiple quantum well ef |
December 28, 1993 |
| A multiple quantum well arrangement which achieves significantly improved third order optical nonlinearity in a semiconductor device by way of spatially periodic electrodes applied to the semiconductor device. The spatial period of the applied electrodes and the resulting exciton con |
| 5273401 |
Wrapped paired blade rotor |
December 28, 1993 |
| A new lightweight bladed rotor for gas turbine or turbojet engines combines an inner support ring with blade straps made of fiber reinforced material. The blade straps wrap halfway around the inner support ring so that their ends extend radially outwardly to form blade pairs. A rim conne |
| 5273237 |
Forebody nozzle for aircraft directional control |
December 28, 1993 |
| A system for augmenting yaw control in an aircraft is described which comprises first and second thrust nozzles disposed on the upper surface of the aircraft forebody aft of the forebody nose apex a distance of about 0.5 times the forebody diameter at about 45.degree. to either side of t |
| 5272698 |
Multi-speaker conferencing over narrowband channels |
December 21, 1993 |
| A system for digital conferencing over narrowband channels which allows use bymultiple simultaneous speakers and which allow for interfacing between vocoders which operate at different bit rates. The system takes advantage of the properties of multi-rate parametric vocoders (which includ |
| 5272662 |
Carry multiplexed adder |
December 21, 1993 |
| A binary add signal selection type wherein carry signals rather than the usual sum signals are selected from presumed signals by multiplex switching in each bit slice cell of the adder. The new adder is organized into propagation delay time determined stages which include a plurality of |
| 5271917 |
Activation of carbon fiber surfaces by means of catalytic oxidation |
December 21, 1993 |
| Carbon fibers having substantially increased active surface area and total surface area are used to enhance carbon fiber bonding to matrix materials in carbon fiber products. The enhanced active surface area and total surface area are produced by carbon removal in disordered regions as w |
| 5270872 |
Superconducting submicron filter |
December 14, 1993 |
| An optical filter structure for selectively blocking radiation of predetermined wavelength is described which comprises a layer of material characterized by transition from a superconducting phase to insulating phase upon heating to a characteristic transition temperature, deposited |
| 5268972 |
Aromatic hydrocarbon optrodes for groundwater monitoring applications |
December 7, 1993 |
| Fiber optic based optrodes suitable for in-situ monitoring of groundwater and earth material for the presence of aromatic hydrocarbons. The optrodes are fabricated with porous optical waveguides which are impregnated with a chemical indicator whose optical transmission properties change |
| 5268648 |
Field emitting drain field effect transistor |
December 7, 1993 |
| A field emitting drain field effect transistor FEDFET device which combines the desirable frequency response and current control characteristics of a field effect transistor (or other transistor) with the higher voltage higher power level characteristics of a field emission triode vacuum |
| 5264971 |
Transmissive doppler frequency shifter |
November 23, 1993 |
| The disclosed system comprises: 1) a transmissive frequency shifter based on reflection from rotating flat surfaces and from stationary involute surfaces; 2) system to compensate for effects of rotation rate instabilities and certain imperfections in the frequency shifter's reflectio |
| 5264957 |
Electrically controlled multiple dispersion (zoom) device |
November 23, 1993 |
| The optical device can examine a spectrum at low resolution and subsequently choose a portion of that spectrum to be examined at higher resolution, using a single detector array for both spectra. The latter spectrum can be chosen to be arbitrarily anywhere within the low resolution s |
| 5264863 |
Mobile cylindrical antenna |
November 23, 1993 |
| The mobile cylindrical microwave antenna array of the present invention comprises a plurality of rectangular panels when deployed forming a cylindrical array. The total number of panels forms an even number with each pair of panels, a left panel and a right panel, forming a subarray |
| 5264855 |
Technique for stationary radar target discrimination |
November 23, 1993 |
| The disclosure describes a method of measuring stationary CW radar targets in the presence of sizable clutter and leakage signals, and to eliminate the clutter and leakage by taking a first measurement when the target is in a first position, and taking a second measurement when the targe |
| 5264504 |
Graft copolymers of articulated rod-like polymers |
November 23, 1993 |
| There are provided fusible, rod-like graft copolymers having repeating units of the formula: ##STR1## wherein a ranges from about 0.75 to 0.97 and b is 1-a; wherein Z is a benzbisoxazole or benzbisthiazole moiety, wherein Ar is a linear phenylene or polyphenylene moiety, wherein |
| 5263193 |
Selfmixing heterodyne system |
November 16, 1993 |
| High receiver sensitivity and narrowband coherent resolution can be achieved at millimeter and submillimeter wavelengths through the process of heterodyning or intermediate frequency (IF) generation. The two frequencies, whose IF is being generated, need not be very stable in frequen |
| 5262968 |
High performance architecture for image processing |
November 16, 1993 |
| The logical computer architecture is specifically designed for image processing, and other related computations. The architecture is a data flow concept comprising three tightly coupled components: a spatial configuration processor, a point-wise operation processor, and a accumulatio |
| 5261056 |
N-port wide bandwidth cross-link register |
November 9, 1993 |
| The cross-link register allows multiple digital processors to pass data and control parameters to a common region. The N-port wide bandwidth crosslink register (WBCR) represents a method for interconnection of N different digital interconnection units (DIUs). The WBCR comprises a group o |
| 5260962 |
Compact Lightweight ring laser gyro |
November 9, 1993 |
| A lightweight ring laser gyro (RLG) for vehicles including space vehicles is provided wherein the housing of such RLG, instead of being made of relatively heavy ULE glass, is made of low density silica aerogel having a density of from 600 to 1000 mg/cc. Further, where the prior art RLGs |
| 5260574 |
Infrared densitometer |
November 9, 1993 |
| A high resolution infrared densitometer system is described which comprises an intense thermal light source, an optical system for projecting first and second images of the light source along respective parallel first sample and second reference optical axes, adjustable optical attenuato |
| 5259917 |
Transparent semiconductor crystals |
November 9, 1993 |
| A method for producing a semiconductor crystal which is highly transparent in the 1-3 .mu. spectral range is described which comprises the steps of exposing the crystal to high energy ionizing gamma radiation to produce within the crystal energetic photo electrons which produces defect d |
| 5258872 |
Optical filter |
November 2, 1993 |
| A high reflection optical filter is described which comprises a film of a dielectric, inorganic or organic or other suitable material deposited on a suitable optically transparent substrate, the film having between a surface thereof exposed to incident radiation and an interface with the |
| 5258626 |
Superconducting optically reconfigurable electrical device |
November 2, 1993 |
| A superconducting network which, through the use of optical illumination, can form a selectable array of superconducting microstrip transmission lines or other electrical elements. The invention uses optical illumination to produce quasiparticles which cause selected physical parts o |
| 5257802 |
Zero-residual-energy minimum-time slew of a flexible space structure with damping |
November 2, 1993 |
| A method is disclosed wherein a flexible space craft may be slewed by the application of positive and negative acceleration forces applied about a slewing axis. The method is such that at the end of the application of the slewing forces there is no residual energy in the excited modes. B |
| 5257757 |
Advanced hypersonic nosecap |
November 2, 1993 |
| A hybrid active cooling system for hypersonic vehicle nosecaps and leading edges integrates a forced convection cooling system with a transpiration cooling system. A pair of concentric shells, hemispherical for a nosecap and cylindrical for a leading edge, are separated by pin fins to fo |
| 5257211 |
Adjustable bandwidth concept (ABC) signal energy detector |
October 26, 1993 |
| An adjustable bandwidth signal energy detector apparatus utilizing a detector processor to process serial frequency data to determine which of N frequency bins contain signal energy. The serial frequency data is processed through a series of low pass filters, each of which include a |
