| Patent Number |
Title Of Patent |
Date Issued |
| 5021643 |
Pointer/tracker for a phased array laser system |
June 4, 1991 |
| A pointer/tracker system is disclosed for use with an array of laser telescopes. This pointer/tracker system uses one telescope as a reference and causes all others in the system to "track" the reference. The common element concept is maintained by a synthetic approach. Each tilt detecto |
| 5021517 |
Process for the fabrication of rodlike polymer reinforced molecular composites into shaped artic |
June 4, 1991 |
| A process for fabricating rod-like aromatic heterocyclic polymer-reinforced composite materials into shaped articles which comprises the steps of:(a) dissolving a rigid-rod aromatic heterocyclic polymer and a flexible, coil-like thermoplastic polymer in a common solvent at a concentration |
| 5021268 |
Method of making asymmetric Langmuir-Blodgett films |
June 4, 1991 |
| A method is disclosed which uses the Langmuir-Blodgett method to coat a substrate with multiple monomolecular single layers by immersing the substrate through a first layer of a first enclosure of a tank having first and second enclosures on a common subphase, and then withdrawing the |
| 5020414 |
Portable ammunition counter |
June 4, 1991 |
| A portable counter for belted ammunition contained in linked tubes of a flexible ammunition carrier is described which comprises a pair of upright wall members and a top plate holding the wall members in preselected spaced relationship to each other and defining an entrance side and an |
| 5020157 |
Ballistic protective insert for use with soft body armor by female personnel |
June 4, 1991 |
| A ballistic protective insert for use with soft body armor by female personnel is disclosed. The ballistic protective insert provides enhanced protection to female breast tissue which is uniquely susceptible to the harmful effects of blunt trauma from ballistic impact. The ballistic |
| 5017928 |
Low sidelobe array by amplitude edge tapering the edge elements |
May 21, 1991 |
| A system for reducing sidelobes of phased array antenna systems is performed by tapering the current amplitide of edge elements in the array while maintaining a full uniform current to the center elements in the array. Tapering may be adjusted with variable impedance devices until op |
| 5016976 |
Modified compact 2f optical correlator |
May 21, 1991 |
| A modified 2f Fourier transform optical correlator combines a collimation and first Fourier Transform lens into one thin lens. The resulting correlator thus utilizes one less lens relative to the unmodified 2f optical correlator. |
| 5015844 |
Optical surveillance sensor apparatus |
May 14, 1991 |
| An optical sensor apparatus having one or more optical fibers with a numerical aperture of 0.870 or less to receive and conduct light signals. A light detecting unit receiving the light signals from said optical fibers and providing an electrical output signal in response thereto. A |
| 5015305 |
High temperature hydrogenation of gamma titanium aluminide |
May 14, 1991 |
| A method for refining the microstructure and enhancing the processability of titanium aluminum alloys containing about 45 to 55 atomic percent aluminum which comprises the steps of:(a) rapidly solidifying a titanium aluminum alloy containing about 45 to 55 atomic percent aluminum in a hy |
| 5015188 |
Three dimensional tactical element situation (3DTES) display |
May 14, 1991 |
| A two dimensional or flat image display format for showing on an aircraft pilot's helmet mounted display the position of the aircraft relative to other aerial objects in three dimensional space is disclosed. The display format switches, under pilot control, among a variety of different, |
| 5014581 |
Apparatus for machining |
May 14, 1991 |
| A rotary machining system is presented which uses a housing, a combined spindle and cutting disk, a source of high pressure fluid, a hydraulic line, a needle valve, a carbide ball and a carbide socket to machine superalloys and other difficult-to-machine materials and alloys at high |
| 5014069 |
Photoconductive antenna modulator |
May 7, 1991 |
| A photoconductive antenna modulator which optically modulates a radio frequency carrier signal from a dielectric waveguide antenna is disclosed. A photoconductor film is placed in proximity with the dielectric waveguide antenna such that the radio frequency carrier signal from the antenn |
| 5013113 |
Lossless non-interferometric electro-optic III-V index-guided-wave switches and switching arrays |
May 7, 1991 |
| Lossless guided-wave switches with more than 30 dB of crosstalk-isolation are comprised of branched channel waveguides with laser-like cross-sections. Optical gain, sufficient to overcome power-splitting losses, is provided by carrier-injection currents. Due to its low-noise properti |
| 5012522 |
Autonomous face recognition machine |
April 30, 1991 |
| A machine is disclosed that is capable of locating human faces in video scenes with random content within two minutes, and capable of recognizing the faces that it locates. The machine uses images obtained from a video camera and is insensitive to variations in brightness, scale, focus, |
| 5012343 |
CCD delta-modulation focal plane |
April 30, 1991 |
| A focal plane array for scanned imaging systems provides an increased dynamic range by encoding analog differences between scene pixel amplitudes at a detector unit cell. Charge Coupled Device (CCD) differentiators are utilized to encode the pixel deltas at the unit cell. These delta |
| 5012251 |
Radar capability display apparatus |
April 30, 1991 |
| A radar capability display apparatus utilizing radar theory equations which are stored in a computer to relate the measured characteristics of interference signals in radar return echoes to determine the amount of radar performance degradation that the interference signals create. These |
| 5011566 |
Method of manufacturing microscopic tube material |
April 30, 1991 |
| A sacificial fiber method to fabricate straight, curved, or coiled tubes as small as 1 micron (0.000004 inches) in diameter with wall thicknesses starting at less than 0.01 microns. These tubes can be made from many of the materials that can be applied to a surface of carbon, glass, or o |
| 5010757 |
Method of forming dimples in a conductive substrate |
April 30, 1991 |
| Method of forming shallow fiducial dimples upon a thin flexible electrical circuit having a first deflectable substrate overlaying a second substrate have recesses therein to be aligned with the dimples, including providing a first support member having resilient cylindrical rubber pads |
| 5008770 |
Filter pin integrated circuit socket kit |
April 16, 1991 |
| This is a device for electromagnetic transient protection for integrated circuit boards in a convenient and easily customized package. The device comprises an array of transient protection devices (TPDs) made in the form of sleeves on hollow pins and installed in a fiberglass board. The |
| 5008593 |
Coaxial liquid cooling of high power microwave excited plasma UV lamps |
April 16, 1991 |
| In a high power microwave excited plasma system including a microwave energy source operatively coupled to a plasma tube for generating a plasma within the tube, a gaseous medium within the tube for supporting a plasma and a reflector for focusing radiation emitted from the tube, an impr |
| 5008570 |
Schmitt-triggered TTL to CML input buffer apparatus |
April 16, 1991 |
| A TTL to CML input buffer and conversion apparatus having a Schmitt trigger to receive a TTL logic signal and apply the logic signal levels to a CML gate unit. The logic levels of the TTL signal are converted by the CML gate unit into CML logic signals. |
| 5008542 |
Method and system for automated measurement of whole-wafer etch pit density in GaAs |
April 16, 1991 |
| A method and system for measuring whole-wafer etch pit density (.rho..sub.D) is disclosed in which an etch GaAs wafer is tested for fractional transmission at a plurality of points over its surface. The fractional transmission (T) of light through the wafer is detected, amplified and |
| 5008346 |
Graft copolymers of poly(p-phenylene benzbisimidazole) |
April 16, 1991 |
| A fusible, rod-like, graft copolymer having repeating units of the formula: ##STR1## wherein X is (--CH.sub.2 CH.sub.2 CONH--).sub.m or (--CH.sub.2 --CH(CH.sub.3)--O--).sub.n, wherein m has an average value of 5.0 to 35.0 and n has an average value of 1.0 to 30.0. |
| 5008213 |
Hybrid wafer scale microcircuit integration |
April 16, 1991 |
| A wafer scale integration arrangement wherein integrated circuit die of varying size, fabrication processes, and function are commonly mounted in the same host wafer using a filled epoxy material of special characteristics. The mounting epoxy material also serves as a substrate for t |
| 5007737 |
Programmable detector configuration for Fraunhofer diffraction particle sizing instruments |
April 16, 1991 |
| An intelligent laser diffraction particle sizing system is disclosed. A portion of the primary laser beam is directed by beam splitter into a calibration leg, modulated, and passed through a diffraction reticle. The known diffraction signature of the reticle is then recombined with the |
| 5007721 |
Mechanically rotated Doppler frequency shifter |
April 16, 1991 |
| A mechanical Doppler shifting device for a high frequency radiated beam comprises a rotating helical reflector having its axis of rotation parallel to the beam and a plane stationary mirror mounted parallel to the axis. The helix has a smooth reflective surface which is at a 45 degree |
| 5005927 |
Nonlinear optical microscope |
April 9, 1991 |
| A microscope that preferentially displays either moving or stationary objects. This all-optical device operates in real-time using the coupling of optical beams in suitable nonlinear medium such as a photorefractive crystal of barium titanate. A holographic image is continuously written |
| 5005783 |
Variable geometry airship |
April 9, 1991 |
| A variable geometry lighter-than-air craft which can change from a buoyant airship to a heavier-than-air craft by changing shape. The craft has a flexible envelope filled with helium or other lifting gas. Releasing or tightening the adjusting lines changes the envelope shape by adjusting |
| 5005639 |
Ferrofluid piston pump for use with heat pipes or the like |
April 9, 1991 |
| A long life, very low friction pump for use in a heat pipe pump or the like is disclosed. A first pump uses magnetically confined ferrofluid rings as both sealer and lubricant for a sliding pump piston in a two sided piston pump that minimizes the seal pressures on both sides of the ferr |
| 5004447 |
Low loss semiconductor directional coupler switches including gain method of switching light usi |
April 2, 1991 |
| In multiple quantum well directional couplers, non-centralized input and output legs, occupying major portions of the switches, are continuously forward biased, to produce sufficient gain in light intensity therein to overcome losses in the centralized portions, to in turn provide a |
| 5003528 |
Photorefractive, erasable, compact laser disk |
March 26, 1991 |
| The invention comprises a data storage device in which ferroelectric photorefractive cells 12 susceptible to polarization for the storage of digital information are positioned on a carrier medium, preferably a disk 10, which supports the cells and allows access to them by optical beams |
| 5003050 |
Diazoluminomelanin and a method for preparing same |
March 26, 1991 |
| A water-soluble luminescent compound having repeating units of the formula: ##STR1## The product, which is a polymer having repeating units comprising diazo-linked luminol and hydroxyindole, is referred to as diazoluminomelanin (DALM), since one of the precursors to this product, |
| 5003035 |
Crosslinkable rigid-rod benzobisazole copolymer |
March 26, 1991 |
| There are provided para-ordered aromatic heterocyclic copolymers having repeating groups of the following formulas: ##STR1## wherein a, b, c, d, and e are positive integers, each representing an average number of the respective different recurring units present in the repeating g |
| 5002720 |
Electret enabled thermal neutron flux detection and measurement |
March 26, 1991 |
| An improved thermal neutron flux detector and measuring apparatus of the neutron induced transmutation type. The disclosed apparatus employs a plastic film electret and a fissionable material such as uranium-235 for generating energetic ion fission fragments-fragments which alter the |
| 5001528 |
Radiation hardened CMOS on SOI or SOS devices |
March 19, 1991 |
| A radiation hardened CMOS transistor has a source region, drain region and channel region formed on an SOI or SOS wafer. End plugs of opposite conductivity to that of the source and drain regions are connected to the channel region. In one embodiment, the end plugs extend along opposite |
| 5001217 |
Crosslinkable rigid-rod benzobisazole polymer |
March 19, 1991 |
| There are provided crosslinkable, para-ordered aromatic heterocyclic polymers having repeating groups of the following formula ##STR1## wherein Y is --O--, --S--, or --NH--, n is 1 or 2, and R is an alkyl group having 1 to 4 carbon atoms. In polymers having two pendant R groups, the |
| 5000885 |
Chemical inhibitor for solid propellants |
March 19, 1991 |
| Solid propellant test strands are inhibited, i.e., prevented from burning in an uncontrolled fashion, by coating the strands with a liquid composition containing a partially cured phenolformaldehyde in a volatile solvent, then volatizing the solvent. |
| 5000859 |
Process for sodium sulfide/ferrous sulfate treatment of hexavalent chromium and other heavy meta |
March 19, 1991 |
| A process for treating industrial waste water containing hexavalent chromium (Cr.sup.+6) and other heavy metals is disclosed which comprises reduction of Cr.sup.+6 to trivalent chromium (Cr.sup.+3) and the precipitation thereof with other heavy metals by addition of sulfide ion and f |
| 5000611 |
Attachment structure for cylindrical member |
March 19, 1991 |
| A combination mechanically retained and adhesively bonded attachment structure and method for a guy wire, cable, rod, tube or like member is described which comprises an elongate fitting of preselected external shape having a plurality of axially spaced coaxial bores of respective pr |
| 5000516 |
Apparatus for rapidly generating pressure pulses for demolition of rock having reduced pressure |
March 19, 1991 |
| An inlet chamber receives fluid from a small high pressure pump, such fluid flowing through a flow restrictor and one-way valve into an accumulator, until very high pressure is established in the accumulator. At the same time, a sealed poppet is pushed against a poppet seat by the high p |
| 4999591 |
Circular TM.sub.01 to TE.sub.11 waveguide mode converter |
March 12, 1991 |
| A waveguide mode converting apparatus especially of the TM.sub.01 to TE.sub.11 converting type and usable in circuit waveguide apparatus with desirable high efficiency and relatively small physical size is disclosed. The mode converter employs the combination of an asymmetrically shaped |
| 4999552 |
Torque motor driver |
March 12, 1991 |
| A torque motor driver apparatus utilizing an operational amplifier driver which operates near zero milliamps output current, to drive and control a torque motor of non-zero null current, with minimum steady-state power consumption and full functional performance. An enable/disable fail s |
| 4996494 |
Droop compensated PFN driven transformer for generating high voltage, high energy pulses |
February 26, 1991 |
| A pulse forming system for providing constant power pulses for variably resistive loads is disclosed. It includes a high voltage power source, a pulse forming network, and a transformer circuit. The high voltage power source outputs a voltage signal with a level of about 200 kV. The puls |
| 4995067 |
Surgical and x-ray operation table extension |
February 19, 1991 |
| An extension for an operating table having an adjustable surface for supporting a patient thereon for surgical procedures is described which comprises an x-ray transparent platform defining an upper surface of sufficient size for supporting a patient thereon, brackets for attachment |
| 4994123 |
Polymeric intermolecular emulsion explosive |
February 19, 1991 |
| A physically stable emulsion explosive composition consisting of a dispersed phase and a continuous phase, wherein the dispersed phase consists essentially of at least one oxidizing compound and at least one fuel compound, and wherein the continuous phase consists essentially of a po |
| 4993031 |
Broadband raman beam combiner |
February 12, 1991 |
| Raman cell beam combining apparatus for combining a seed beam with a pump beam being introduced into the Raman cell, and employing a segmented mirror for substantially correcting the relative tilt of individual incremental portions of the wavefront of the pump beam with respect to the |
| 4992841 |
Pseudo uniphase charge coupled device |
February 12, 1991 |
| A pseudo uniphase CCD array having four functional regions, a clocked barrier region, a clocked well region, a virtual barrier region, and a gate variable potential well region per stage. The described structure allows flexibility in setting operating voltages and avoids the breakdown |
| 4989941 |
Normal incidence optical switches using ferroelectric liquid crystals |
February 5, 1991 |
| This invention comprises a new group of fiber optic switching devices that use layers of surface-established ferroelectric liquid crystals (FLCs) as the switching media. In each of the devices light impinges upon the ferroelectric liquid crystal at an angle of 90.degree. (normal incidenc |
| 4989493 |
Explosive attenuating structure for use inside missiles and the like |
February 5, 1991 |
| A structure for attenuating explosive shock waves to prevent propogation of accidental explosions by sympathetic detonation of adjacent explosives comprising bidirectionally symmetric layers of material of consecutively increasing or decreasing acoustic impedance laminated about a center |
| 4989063 |
Hybrid wafer scale microcircuit integration |
January 29, 1991 |
| A wafer scale integration arrangement wherein integrated circuit die of varying size, fabrication processes, and function are commonly mounted in the same host wafer using a filled epoxy material of special characteristics. The mounting epoxy material also serves as a substrate for t |
