| Patent Number |
Title Of Patent |
Date Issued |
| 5996501 |
Blast and fragmentation enhancing explosive |
December 7, 1999 |
| A dual explosive charge is described that simultaneously enhances blast and fragmentation characteristics of the charge, including an inner driven charge of a non-ideal explosive surrounded by an outer charge sleeve of a more nearly ideal explosive, detonation of the outer charge resulti |
| 5991099 |
Adjustable chromatic correction lens |
November 23, 1999 |
| An imaging lens device at f/4 has zoomlike variable chromatic and spherochromatic correction for imagery in each of the astronomical U, B, V, and R bands. This lens system can thus take advantage of the full usable wavelength range of CCD cameras extending from 0.35-0.9 micrometers. |
| 5991021 |
Nonlinear spectrophotometer |
November 23, 1999 |
| The purpose of the nonlinear spectrophotometer is to provide a simple instrument that can be used on a routine basis to accurately measure the two-photon absorption (TPA) coefficient and cross-section on a wide variety of materials. The instrument is capable of measuring: (1) both or |
| 5989397 |
Gradient multilayer film generation process control |
November 23, 1999 |
| Process control for generating graded multilayer films repetitively and consistently using both pulsed laser sputtering and magnetron sputtering deposition techniques. The invention includes an apparatus which allows for set up of an ultrahigh vacuum in a vacuum chamber automatically, an |
| 5986758 |
Diffractive optic image spectrometer (DOIS) |
November 16, 1999 |
| An imaging spectrometer provides a three-dimensional (two (2) spatial and one (1) spectral) image cube of a target. In this apparatus, a diffractive optical element (DOE) performs the imaging and provides the dispersion necessary to separate a multi-spectral target into separate spectral |
| 5986581 |
Programmable infrared marker (PIRM) |
November 16, 1999 |
| An electrical strip of infrared radiating elements which is powered by a battery and rolled up on a wheel and has many advantages over the present device. The first is visibility. It is highly visible at over three miles and the system is a 3/4" strip with LEDs placed every meter and on |
| 5983420 |
Furniture for a standardized room |
November 16, 1999 |
| A sleeping unit for furnishing a standardized room having two dresser units thereunder is disclosed. Each dresser unit comprises a rectangular box-like frame constructed of 1.times.1 aluminum tubing and welded joints. The frame has a base which is constructed of 1.times.2 aluminum tubing |
| 5982156 |
Feed-forward control of aircraft bus dc boost converter |
November 9, 1999 |
| An open loop control arrangement for an electrical energy flow-controlling circuit coupling the varying terminal voltage of an energy storing capacitor to a fixed voltage direct current aircraft energy supply bus in order to supplement bus voltage transients. The open loop control ar |
| 5981949 |
Locating defects in solid material |
November 9, 1999 |
| The invention provides method and apparatus for fast, accurate, and nondestructive imaging of defects and determining defect densities in solid materials including a semiconductor wafer. A wafer is illuminated on one side by an infrared (IR) source and a camera is placed on the other |
| 5980789 |
Modified gallium selenide crystals for high power nonlinear optical applications |
November 9, 1999 |
| A new method for improving the mechanical properties and nonlinear optical performance characteristics of gallium selenide crystals (GaSe) is disclosed. A charge of GaSe crystals was doped with indium before being made into a crystal. The indium-doped GaSe crystals have improved physical |
| 5977354 |
Recovery of secondary explosives from explosive compositions |
November 2, 1999 |
| Secondary explosive materials, particularly nitramines, are recovered from an explosive composition containing a mixture of 2,4,6-trinitrotoluene (TNT) and at least one secondary explosive by the steps of heating the explosive composition to melt the TNT, preferably using steam, separate |
| 5976920 |
Single layer integrated metal process for high electron mobility transistor (HEMT) and pseudomor |
November 2, 1999 |
| A method for fabricating a periodic table group III-IV HEMT/pHEMT field-effect transistor device. The disclosed fabrication arrangement uses a single metalization for ohmic and Schottky barrier contacts, employs selective etching with a permanent etch stop layer, employs a non-alloyed |
| 5973852 |
Variable power fluid lens |
October 26, 1999 |
| A fluid filled variable power optical lens is described that includes a substantially tubular shaped housing having in one embodiment an optically transparent elastic membrane disposed over one end thereof and a transparent plate over the second end thereof and defining a chamber for |
| 5972721 |
Immunomagnetic assay system for clinical diagnosis and other purposes |
October 26, 1999 |
| An apparatus and method for immunomagnetic separation and concentration of target biological materials is disclosed. The immunomagnetic separation is performed by a magnetic flow cell, or filter block, as part of an automated mostly continuous immunomagnetic assay system. The magnetic fl |
| 5969226 |
Fretting wear machine |
October 19, 1999 |
| A hardened steel ball presses against a vibrating sample to be subject to fretting. The amplitude and frequency of vibration can be precisely controlled by a stack of piezoelectric transducers. The biasing force of the steel ball against the sample can also be precisely controlled by a |
| 5966058 |
Aperture-coupled multiplanar magic-T junction |
October 12, 1999 |
| The present invention is a compact, multiplanar magic-T junction that generally consists of four planar waveguides and/or planar transmission lines, with at least one planar waveguide or planar transmission line residing in a different circuit layer from the other planar waveguides a |
| 5963292 |
Thermal tuft fluid flow investigation apparatus with a color alterable thermally responsive liqu |
October 5, 1999 |
| A heat transfer-based surface flow visualization method and device that uses a temperature sensitive material to detect advection along a substrate upon application of heat and air flow and thereby provides a surface flow pattern. The present invention includes the capability of prov |
| 5963164 |
Monobit kernel function electronic warefare receiver for characterizing two input signals |
October 5, 1999 |
| A broadband gigahertz frequency range radio receiver useful in electronic warfare and other applications for incoming signal detection and identification purposes. The receiver is based on Fourier transform examination of incoming signal characteristics and provides real time accompl |
| 5961030 |
Using phosphorus compounds to protect carbon and silicon carbide from reacting with titanium all |
October 5, 1999 |
| A method for controlling the interface in a titanium matrix composite between the titanium matrix material and a silicon carbide reinforcing filament or fiber which comprises treating such filament or fiber with a phosphorus-containing compound, and thereafter incorporating the treated |
| 5950303 |
Method and fixturing to perform two side laminations of stacked substrates forming 3-D modules |
September 14, 1999 |
| A substrate stack is suspended within a stack holder to position upper and lower stack surfaces coplanar with upper and lower holder surfaces. Laminating heat and pressure is simultaneously applied to the upper and lower surfaces to laminate a carrier interconnect film to top and bottom |
| 5948260 |
Process for bioreduction of propelleant wastewater |
September 7, 1999 |
| A process for treatment and disposal of wastewater having dissolved perchlorate salts is described and includes the steps of adding to the wastewater in a hydrogen gaslift recycle reactor a mixed bacterial culture containing the specific bacterium HAP1 for reducing the perchlorate ion to |
| 5946152 |
Method of reducing light beam jitter of an incoming light beam |
August 31, 1999 |
| Four loudspeaker voice coils are positioned in quadrature relationship, and a movable mirror support member is provided, having a mirror on a central hub portion, and having four outwardly extending orthogonal lightweight struts, each attached to an associated voice coil armature at a te |
| 5946148 |
Variable transmission beamsplitter |
August 31, 1999 |
| The present invention consists of two right angle prisms, one of which is coated with a wedged layer of low index of refraction transparent material such as magnesium fluoride. The coating varies in thickness, linearly, for example, from about 50 to 700 nanometers, for example. The prism |
| 5943983 |
Non-human primate research support tilt table |
August 31, 1999 |
| A tilting apparatus for supporting and restraining a non-human primate animal while conducting research. The tilting apparatus is provided with a table for supporting the animal reclining face down thereon. The table is supported by support means for rotation about a first axis between a |
| 5942638 |
Method of functionalizing polycyclic silicones and the resulting compounds |
August 24, 1999 |
| A synthetic process for the selective preparation of reactive polyhedral oligomeric silsesquioxanes (POSS) as well as polyhedral oligomeric silicate (POS) (spherosilicate) is provided. The method claimed herein employs metal catalyzed metathesis reactions for the selective reaction of |
| 5940685 |
Fabrication of UV-sensitive back illuminated CCD image sensors |
August 17, 1999 |
| The wafer thickness of a CCD front illuminated silicon wafer is reduced to about ten to twenty microns, the Al substrate is removed and a 5-35 nanometer silicon oxide layer is produced on the thinned back of the silicon wafer followed by implanting boron ions within the back surface to |
| 5940193 |
General purpose quantum computing |
August 17, 1999 |
| Method and apparatus are provided for a general purpose photonic computer. A data signal is input through an encoder to encode such signal with an instruction. The encoded signal is transmitted by means of a laser beam to an input buffer where it interferes with a reference beam so as to |
| 5939576 |
Method of functionalizing polycyclic silicones and the compounds so formed |
August 17, 1999 |
| A synthetic process for the selective preparation of reactive polyhedral oligomeric silsesquioxanes (POSS) as well as polyhedral oligomeric silicate (POS) (spherosilicate) is provided. The inventive process employs the use of metal catalyzed hydrosilylation reactions for the selective |
| 5936991 |
Near fields in flared MOPAs amplifiers and oscillators by lateral current tailoring |
August 10, 1999 |
| Conventional master oscillator power amplifier (MOPA) devices have experienced poor beam quality due to edge effects. The lateral current tailoring described herein was one attempt at improving the laser beam quality. Experimental results have indicated that this approach can make im |
| 5936401 |
Device and process for measuring electrical properties at a plurality of locations on thin film |
August 10, 1999 |
| A device and process for determining the uniformity of a superconducting film's critical current density and transition temperature over a large area uses an array of ac coils placed in close proximity to a superconducting film. A variable ac current is passed through each coil which |
| 5935648 |
High surface area molybdenum nitride electrodes |
August 10, 1999 |
| High surface area Mo.sub.2 N or MoN electrodes for use in high energy density energy storage devices, and processes for fabricating the electrodes, are described wherein a precursor molybdenum solution is applied to a metallic foil substrate which is heated to produce a MoO.sub.3 coa |
| 5932133 |
Ion conducting electrolyte material |
August 3, 1999 |
| New lithium ion conducting materials comprise phthalocyanine rings. These materials function as sites through which the lithium ion passes. In one aspect of the invention, an electrolyte composition consists essentially of a major amount of a lithium phthalocyanine and a minor amount of |
| 5931959 |
Dynamically reconfigurable FPGA apparatus and method for multiprocessing and fault tolerance |
August 3, 1999 |
| Computing modules can cooperate to tolerate faults among their members. In a preferred embodiment, computing modules couple with dual-ported memories and interface with a dynamically reconfigurable Field-Programmable Gate Array ("FPGA"). The FPGA serves as a computational engine to provi |
| 5931820 |
Wound and lavage irrigation connector apparatus and method for using |
August 3, 1999 |
| A new apparatus and method for irrigating wounds and for performing gastric lavage utilizes a novel connector that has a spiked end shaped to mate with the self-sealing outlet of a compressible bag of sterile irrigation fluid and a nozzle end having the shape of a syringe tip. The spiked |
| 5929448 |
Redundant transistor dose monitor circuit using two ICs |
July 27, 1999 |
| A total dose monitor circuit consists of three P-channel MOSFET devices packaged in a CD4007 device and an OP490 bipolar quad operational ampher used to measure and average the sensor outputs. The P-channel transistors in the CD4007 device are used as the total dose sensors in this circu |
| 5926265 |
Low-level lighting comparator |
July 20, 1999 |
| An instrument and method for optically calibrating and balancing low level luminances of lighted instrument panel displays within the operator station of a vehicle is described which comprises a self-contained, calibrated luminance source and a beamsplitter for combining and juxtapos |
| 5926148 |
Three dimensional reconfigurable photoconductive antenna array element |
July 20, 1999 |
| First and second tandemly positioned electrically biased semiconductor members radiate microwave energy in response to the receipt of an excitation light beam having two wavelengths related to the bandgaps of the members. The projected microwave beam may be made more narrow and direc |
| 5924845 |
Centrifugal pendulum absorber for engine blades |
July 20, 1999 |
| A new apparatus and method for dynamically absorbing resonant vibration in jet engine blades and other rotating turbomachine components over all engine speeds is disclosed. A distributed pendulum (a pendulum having its axis of motion inside its body instead of at an end) is mounted insid |
| 5923687 |
Bandwidth enhancement and broadband noise reduction in injection-locked semiconductor lasers |
July 13, 1999 |
| An injection-locked semiconductor laser process that improves the modulation bandwidth and reduces the broadband noise of an injection-locked semiconductor laser. Injection locking of a semiconductor laser can significantly improve its broadband modulation characteristics. By adjusti |
| 5923029 |
Narrow band optical radiation sensor using pyroelectric material |
July 13, 1999 |
| A pair of interleaved finger-like electrodes are positioned over a pyro-electric sheet of polyvinylidine fluoride and a pair of coatings are formed upon the electrodes having different optical reflectance, and as a result, a light beam energy absorption differential will be produced |
| 5920430 |
Lensless joint transform optical correlator for precision industrial positioning systems |
July 6, 1999 |
| A lensless joint transform correlator optically determines the relative position of two pinholes placed in parallel arms of a Mach-Zehnder interferometer. The Fraunhaufer diffraction patterns combine to form a joint power spectrum signal in the joint transform plane. Because of the i |
| 5919710 |
Optical method for quantitating dissolved oxygen in fuel |
July 6, 1999 |
| A method for the quantitative determination of dissolved oxygen in a liquid fuel includes the steps of doping a sample of the fuel with a preselected concentration of a probe material including a luminophor which exhibits luminescence of wavelength which is quenched by oxygen dissolved i |
| 5919316 |
Spacecraft solar array design to control differential charging |
July 6, 1999 |
| Numerous undesirable prior art epoxy beads or pads of metallization, employed to prevent unacceptable electrostatic charge buildup upon the solar cell coverglasses of solar cell array panels deployed in outer space, are eliminated by causing the charge conducting semiconductive cover |
| 5917737 |
Fourier transform mechanization using one bit kernel function |
June 29, 1999 |
| The present invention provides a realization of a real-time, high frequency Fourier transformation using a single binary-bit kernel function which reduces the mathematical operation mechanizations needed to generate a Fourier transformation from multiplication and associated dense, compl |
| 5914542 |
Super capacitor charging |
June 22, 1999 |
| An aircraft electrical energy supply bus supplementing arrangement based on large capacitor or super capacitor storage of electrical energy for bus supplementation. Supplying of bus energy to the large capacitor is addressed in the invention. In this supplying energy is removed from the |
| 5911158 |
Piezoelectric strain sensor array |
June 8, 1999 |
| An apparatus and method for determining the dynamic response of a physical structure is disclosed. A single sheet of a piezoelectric polymer film, preferably polyvinylidene fluoride, or PVDF, is coated on one side with a thin layer of conductive material to serve as a ground electrode. T |
| 5910638 |
High density tungsten-loaded castable explosive |
June 8, 1999 |
| A castable explosive composition consisting essentially of about 50 to 90 weight percent tungsten powder, about 3 to 40 weight percent of a high energy explosive, about 3 to 16 weight percent of an energetic binder, and about 2 to 10 weight percent aluminum powder. The aluminum powder ac |
| 5909732 |
Insert to provide conformal support for the reflective seal of an oxygen mask |
June 8, 1999 |
| A mask insert to provide conformal support for the reflective seal of an oxygen mask comprising a formed rim made of a resiliently deformable material which is held in place beneath the reflective seal by a supporting framework which conforms to the contours of the interior surface o |
| 5909296 |
Effective wide angle beam steering using spherical laser diode arrays |
June 1, 1999 |
| Curved arrays of lasers cause discreet narrow infra-red light beams to be rapidly projected within a wide field of view, without requiring mechanical motion of components. Transmitted and received light beams can be modulated with data to be transmitted between light beam transceivers |
| 5907302 |
Adaptive elevational scan processor statement of government interest |
May 25, 1999 |
| A signal processing system applies space-time adaptive processing ("STAP") to an airborne surveillance Doppler radar comprised of a single-channel, electronically scanned antenna. The STAP substantially improves signal-to-interference-plus-noise ratio ("SINR") by synthetically creating |
