| Patent Number |
Title Of Patent |
Date Issued |
| 5375972 |
Turbine stator vane structure |
December 27, 1994 |
| A turbine stator vane structure is described which comprises an airfoil having a pressure side and a suction side and at least one duct of preselected size defined through the airfoil from the pressure side to the suction side thereof with preselected orientation with respect to the |
| 5375504 |
Augmented hypervelocity railgun with single energy source and rail segmentation |
December 27, 1994 |
| An electromagnetically energized railgun system in which nesting and segmenting of the primary rails is combined with augmenting rails and crossover bar conductors and an inductorless single power supply arrangement to provide a high efficiency hypervelocity capable railgun improveme |
| 5374811 |
Blood and tissue rewarming device |
December 20, 1994 |
| An improved method and apparatus for safely and rapidly rewarming large quantities of frozen or refrigerated blood combines microwave, or radio frequency radiation, heating with a forced air system. Forced air is flowed over units of blood or tissue from those units that will absorb the |
| 5374122 |
Method for quantifying porosity of parts of simple and complex geometries |
December 20, 1994 |
| A method and apparatus for inspecting nonmetallic parts, including composite parts for, e.g. aircraft engines by quantifying their porosity, wherein a laser beam is directed to one side of the part to heat a portion thereof, with a delay being noted for the applied heat to transmit throu |
| 5373236 |
Highly accurate zero crossings for frequency determination |
December 13, 1994 |
| The technique to measure the frequency very accurately for electronic warfare (EW) applications, and is simple in hardware, and which can accomplish this goal with a signal with real data (in contrast to complex data). It uses trigonometric identities to compute the location of the z |
| 5371757 |
Integrated semiconductor laser oscillator and off-axis amplifier |
December 6, 1994 |
| A semiconductor master oscillator generates light which seeds a pair of semiconductor power amplifiers which straddle the oscillator. The power amplifiers have slightly misaligned mirror facets which induce substantial resonator losses in the amplifiers and as a result, the amplifier gai |
| 5370603 |
Pneumatic CPR garment |
December 6, 1994 |
| A system for pneumatically controlling the blood circulation in the lower body extremities in enhancing effectiveness of cardiopulmonary resuscitation on a subject is described which comprises an inflatable garment for covering a preselected portion of the lower body and legs of a su |
| 5369660 |
Repetitively pulsed, closed cycle, photolytic atomic iodine laser |
November 29, 1994 |
| A repetitively pulsed, high energy, closed cycle photolytic atomic iodine lasers operates at 1.315 microns. Using an iodine (I.sub.2) removal system for the photolyzed C.sub.3 F.sub.7 I laser fuel, more than 70 joules/pulse is output in the fundamental mode from a M=3 confocal unstable r |
| 5369408 |
Self-mixing expendable |
November 29, 1994 |
| This invention is directed to an expendable which includes an electronic circuit for introducing a simulated Doppler frequency shift. When dropped from an aircraft, the expendable is used to confuse hostile radar operations. In the past, the approach has been to use a high frequency |
| 5369212 |
Method of preparing tetramethylammonium azide |
November 29, 1994 |
| Tetramethylammonium azide, N(CH.sub.3).sub.4 N.sub.3, is prepared by a new process per the present invention. In the prior art, preparation of such azide was by use of shock-sensitive starting materials, i.e. AgN.sub.3 and HN.sub.3. The method of the present invention provides a new meth |
| 5367579 |
Method of removing spurious responses from optical joint transform correlators |
November 22, 1994 |
| A joint transform optical correlator is disclosed having an optical path length adjustment technique for causing a first optical path length between the reference image plane and the first Fourier transform lens to differ from a second optical path length between the input image plane an |
| 5367177 |
Wavelength selective heterojunction field effect transistor |
November 22, 1994 |
| An optical device which uses a heterojunction field effect detector (HFED) having wavelength selectivity through the use of ion-implantation, and a wavelength selective grating. The device incorporates a Grinsch layer structure with a single GaAs quantum well. The optical power from the |
| 5366362 |
Apparatus for extruding a single aromatic heterocyclic polymeric fiber |
November 22, 1994 |
| An apparatus for making aromatic heterocyclic polymeric fibers having enhanced compressive strength is disclosed. Individual polymeric fibers, while being made according to otherwise conventional methods, are full twisted as they are drawn from a spinnerette hole so that their internal |
| 5365784 |
Humidity sensing apparatus and method |
November 22, 1994 |
| The present invention is a humidity sensor which can be used in a radiosonde. The humidity sensor includes a heat sink attached to the radiosonde, a Peltier cooler attached to the heat sink, a carbon element with a thermistor attached therein or thereon, and a control means. The resi |
| 5365425 |
Method and system for measuring management effectiveness |
November 15, 1994 |
| A system and process are presented in which the factors of quality, cost, and access are integrated in such a manner as to provide a holistic description of the effectiveness of care at medical treatment facilities (MTFs). By using medical treatment data from a variety of computerized |
| 5363663 |
Chemical warfare method with intermittently cooled protective garment |
November 15, 1994 |
| A method for performing chemical warfare and similar cleanup activities and apparatus enabling the performance of such activity in high-temperature environments while maintaining safe and worker comfortable body temperatures. The disclosed method and apparatus rely on alternate periods |
| 5363186 |
Method of producing an optical wave with a predetermined optical function |
November 8, 1994 |
| A five step method is used to produce an optical wave. The first step is to pick the desired far field pattern of the diffractive optical wave. The second step entails transforming the desired far field pattern to the desired source using a fast fourier transform (FFT). In the third step |
| 5363185 |
Method and apparatus for identifying three-dimensional coordinates and orientation to a robot |
November 8, 1994 |
| A system and a process for identifying three-dimensional coordinates and orientation to a robot. A pair of CCD video cameras are used to measure the position of a laser or other light source spot on the surface of a workpiece. The laser and cameras need not be fixed to each other, and th |
| 5362649 |
Method for concentration based analysis of lipid fatty acids and its use in determining the like |
November 8, 1994 |
| A new method for determining and reporting lipid fatty acids compositions and its use in diagnosing coronary artery disease and diabetes is disclosed. Adding internal standards, which are true analogs of the fatty acids to be analyzed, to blood serum or plasma samples before performing a |
| 5362014 |
Ejectable lightweight foam protective covers for fiber optic data link systems |
November 8, 1994 |
| A lightweight, ejectable cover assembly for a fiber optic cable payout system comprises a foam plastic cover, one or more nylon bolts, one or more compression springs, and one or more parachute reefing line cutters for severing on command the nylon bolts to cleanly eject the cover withou |
| 5361477 |
Controlled dwell extrusion of difficult-to-work alloys |
November 8, 1994 |
| A method for extruding metals and alloys, particularly difficult-to-work high temperature alloys, is described which comprises inserting a billet of the metal or alloy into an extrusion can, heating the canned billet to a temperature in a temperature range in which the ductility of the b |
| 5361222 |
Binary phase only filter associative memory |
November 1, 1994 |
| An associative memory apparatus having a 2f Fourier transform optical correlation configuration wherein the correlation spots produced in the correlation plane are projected back by a mirror through the inverse Fourier transform lens and a phase correction reference image filter to p |
| 5361069 |
Airborne radar warning receiver |
November 1, 1994 |
| An airborne radar warning receiver for track-while-scan radar including a first radar frequency receiver and logic circuitry for determining an increase in pulse rate frequency, second radar frequency receiver connected to a signal filter and an automatic gain control amplifier conne |
| 5360572 |
Aerogel mesh getter |
November 1, 1994 |
| A porous light-weight getter which collects particulate and molecular contaminates that is believed a significant improvement over the prior art is provided in which a metal mesh matrix is coated with a low-density porous aerogel. In the prior art bare metal mesh matrices have been e |
| 5359705 |
Method of displaying composite satellite imagery |
October 25, 1994 |
| The method of this invention simulates a 16-bit color composite satellite picture upon an 8-bit color display system, a simulated picture being of substantially equal quality as a 16-bit picture, a simulated picture can be placed on a personal computer system or workstation having an 8-b |
| 5359670 |
Method for identifying a signal containing symmetry in the presence of noise |
October 25, 1994 |
| The disclosure provides a method for use in a robotic system for identifying fasteners used in aircraft and other applications. The fasteners include rivets (with no slots), bolts (with two slots) and screws with one or two slots. The method accepts as input a family of related signa |
| 5358776 |
Lightweight aerogel reflector |
October 25, 1994 |
| A method for fabricating an LD aerogel reflector, including large space-based mirrors is provided wherein, a) an LD silica aerogel substrate at densities between 10-500 mg/cc is prepared, b) the surface of such aerogel substrate is polished to an optical quality surface, c) a dielect |
| 5357748 |
Compressor vane control for gas turbine engines |
October 25, 1994 |
| In a gas turbine engine a method for thrust variation with reduced compressor RPM excursion is provided in two modes which includes adjusting pivotable compressor vanes mounted upstream of compressor rotor blades, ahead of the conventional vane schedule therefor in a closed loop fashion, |
| 5354709 |
Method of making a lattice mismatched heterostructure optical waveguide |
October 11, 1994 |
| The invention comprises processes and heterostructure products defining silicon on insulator waveguides (80, 88, 90, 106, 112, 120, 122) that are suitable for use with light in the 1.3, 1.6 .mu.m or greater wavelengths. Silicon is deposited on an insulator layer 12 on a crystalline subst |
| 5353303 |
Technique for increasing the data rate in a spread spectrum data link |
October 4, 1994 |
| A method for increasing the bit rate of a data link is to select two additional 31-bit chip code patterns that are orthogonal to the present two chip codes, and to each other. This method will not require any more bandwidth that the present 10 MHz used. This method suggests that each of |
| 5353226 |
Coriolis indicator for situational awareness |
October 4, 1994 |
| A system for indicating the presence of Coriolis accelerations within an aircraft which might affect pilot perception of aircraft attitude and spatial orientation, which comprises sensors for measuring vehicle angular position, rotations and velocities operatively connected to an onboard |
| 5353015 |
Tamper detector |
October 4, 1994 |
| The unauthorized separation of a second member such as a door with respect to a first member affixed to a computer frame and the subsequent replacement of the initial position of the door creates a change of state of a square loop magnetic member integral with the computer frame. This |
| 5352886 |
Micro non-imaging light concentrators for image sensors with a lenslet array |
October 4, 1994 |
| An array of micro-sized converging light transmissive channels is positioned between a lenslet array and an array of pixel detectors. The result is that the detectors are substantially smaller than upper portions of the channels and non-optical components may be positioned between the |
| 5352544 |
Fast ion conductors |
October 4, 1994 |
| In units comprising solid polymer electrolytes, the ionic conductivity of such electrolytes is increased by mechanically exciting the units. Such units can be solid state batteries or electrochromic devices or the like. Mechanical excitation may be provided by, for example, a piezoelectr |
| 5352512 |
Microscopic tube material and its method of manufacture |
October 4, 1994 |
| This invention offers a unique method to fabricate unique, straight, curved, or coiled tubes as small as 5 nanometers in diameter with wall thicknesses starting at about 1 nanometer. These tubes can be made from many materials such as polymers, ceramics and metals that can be applied |
| 5351053 |
Ultra wideband radar signal processor for electronically scanned arrays |
September 27, 1994 |
| A radar system that includes an ultra wideband radar signal processor for electronically scanned arrays that utilizes frequency offset generation (FOG) to achieve beam steering as compared with phase shift and time delay techniques of conventional radars. The device comprises a transmit |
| 5350278 |
Joining means for rotor discs |
September 27, 1994 |
| In an assembly of spaced rotor discs, mounted to rotate about a common axis, one or more discs are provided that are removably joined to the other discs but so joined, away from potential fatigue points in the disc webs. Thus a pair of discs have a spacer arm extending therebetween in |
| 5344896 |
Water soluble rigid-rod polymers |
September 6, 1994 |
| Water-soluble rigid-rod aromatic heterocyclic polymers having repeating units of the formula: ##STR1## wherein n has a value of 0.05 to 1.00, M is an alkali metal, Q is a benzobisazole of the formula ##STR2## wherein X is --S-- or --O--, and R is selected from the group consi |
| 5344703 |
Ordered polymer/sol-gel microcomposite laminates with peek resin adhesive |
September 6, 1994 |
| Provided are methods for laminating ordered polymers such as PBZT/sol-gel glass microcomposite film layers by first roughing the bonding surfaces of such film layers and then inserting therebetween a PEEK resin adhesive layer and compressing the film and adhesive layers together at suffi |
| 5344284 |
Adjustable clearance control for rotor blade tips in a gas turbine engine |
September 6, 1994 |
| In a gas turbine engine having rotor blades which rotate with the blade tips in proximity with a surrounding rub strip in the engine shroud, an improvement is provided in the form of a radially adjustable rub strip-air bladder assembly. That is, an air bladder is mounted between the rub |
| 5343287 |
Integrated atmospheric transverse coherence length/laser radiation angle-of-arrival measurement |
August 30, 1994 |
| The System is a test instrument used to measure the quality of the optical path through the atmosphere. The device measures the atmospheric transverse coherence length, also known as Fried's parameter or the diffraction limited aperture of the atmosphere, and the angle-of-arrival of |
| 5342825 |
Passive superconducting bearing system |
August 30, 1994 |
| A passive superconductor bearing system and process for supporting a rotating member uses permanent magnets in the bore of the rotating member, stationary permanent magnets which encircle the shaft, superconducting materials at the shaft ends, and a duct and pinhole outlet which directs |
| 5341556 |
Method and apparatus for manufacture of reinforced panels |
August 30, 1994 |
| Method for tack free positioning of aircraft panel components for subsequent fastening is disclosed. Thus according to the invention, an assembly jig is provided which has a frame, including a plurality of lower contour boards, which pneumatically clamp a plurality of stringers there |
| 5337743 |
Fatigue indicator based on arterial oxygen |
August 16, 1994 |
| A new warning system for informing an aircrew member undergoing high acceleration, or other brain oxygen-depleting environmental stressors, of the time remaining before fatigue sets in and the aircrew member will no longer be able to maintain straining maneuvers fighting the effects of |
| 5337730 |
Endoscope cleansing catheter and method of use |
August 16, 1994 |
| A cleansing catheter for cleaning debris from the fiberoptic window ends of bronchoscopes, other endoscopes and the like, comprises a hollow catheter shaft (26) with an inflatable balloon (28) at one end. A preferred embodiment has a cylindrically shaped balloon (28) with a plurality of |
| 5337180 |
Optical signal dependent noise reduction by variable spatial thresholding of the fourier transfo |
August 9, 1994 |
| Spatially variable nonlinear optical thresholding in the Fourier plane reduces signal-dependent noise, such as scalar multiplicative noise. Coherent artifact noise reduction by a factor of four is attained using deamplifying photorefractive two-beam coupling. A variable light transmi |
| 5337170 |
Quadratic optical processor for reducing multiplicative noise and other uses |
August 9, 1994 |
| A degenerate four-wave mixing arrangement employs a photorefractive crystal as a real time holographic recording medium to record a hologram of the noisy optical signal. The signal passes through the crystal and is phase conjugated by a self pumped barium titanate phase conjugator, and t |
| 5337051 |
Approximate zero crossings for frequency determination |
August 9, 1994 |
| The technique to measure the frequency very accurately for electronic warfare (EW) applications, and is simple in hardware, and which can accomplish this goal with a signal with real data (in contrast to complex data). It uses a linear approximation between points to calculate zero c |
| 5336930 |
Backside support for thin wafers |
August 9, 1994 |
| An additional layer of electrically insulating material is added to the backside of thin wafers, especially wafers made from brittle semiconductor material such as gallium arsenide and comprising integrated circuits of, for example, the microwave monolithic integrated circuit type. The a |
| 5336894 |
Universal infrared heat source controller |
August 9, 1994 |
| The controller for a single infrared source is capable of being programmed to act as a target for an AIM-9 target seeker. Data are read by the controller comprises (a) temperature data, (b) aperture data, (c) shutter-filter data, and (d) missile ID data. The controller includes a mic |
