| Patent Number |
Title Of Patent |
Date Issued |
| 5138157 |
Neutral particle beam propagation direction determining apparatus and method |
August 11, 1992 |
| The direction of propagation of a neutral particle beam is determined by positioning a shadow wire in the beam and positioning an array of detector wires downstream from the shadow wire. The shadow wire forms a shadow region downstream thereof, i.e., a region which is depleted of particl |
| 5136978 |
Heat pipe susceptor for epitaxy |
August 11, 1992 |
| The present invention is a heat pipe susceptor for use in a vapor deposition system. The multi-layered refractory material susceptor provides a highly uniform heated surface upon which wafers are placed for heating by a radio frequency (RF) source. Because of the highly uniform surfa |
| 5136951 |
Nosecone/fairing for M130 chaff and flare dispenser |
August 11, 1992 |
| A nosecone/fairing for reducing the aerodynamic drag of an underwing mounted chaff and flare dispenser has the shape of a flattened paraboloid and covers only the generally square front of the chaff and flare dispenser. The nosecone/fairing is made of fiberglass and attaches to the c |
| 5136743 |
Distal radioulnar joint stress platform |
August 11, 1992 |
| A device for positioning the distal radioulnar joint (DRUJ) for medical examination is described which comprises a platform sized to receive a forearm and hand of a subject, a pair of upright blocks mounted on the platform in spaced relationship to each other, each block having a plu |
| 5135196 |
Multi-axis positional gimbal |
August 4, 1992 |
| A multi-axis positional gimbal assembly is provided having a junction member with two passageways therein at angles to each other, a first arm sized to insert into one of the passageways and to axially shift therein and a second arm sized to insert into the other of said passageways and |
| 5134423 |
Low sidelobe resistive reflector antenna |
July 28, 1992 |
| Tapering the surface current density near the edges of a parabolic reflector antenna lowers the sidelobe level of the reflector. The current density is tapered by placing tapered resistive edge loads on the reflector for gradually decreasing the conductivity from the center of the re |
| 5134261 |
Apparatus and method for controlling gradients in radio frequency heating |
July 28, 1992 |
| A composite susceptor for a radio frequency (RF) heated crystal growing furnace has a plurality of stacked electrically insulating and electrically conducting elements about the crucible area so that a proper temperature gradient is established and controlled. |
| 5132612 |
Apparatus for electrostatic discharge (ESD) stress/testing |
July 21, 1992 |
| An apparatus for applying high current fast rise time pulses simulating electrostatic discharge (ESD) to various combinations of pins of a device under test (e.g., a microcircuit). The apparatus also provides for testing of the DUT after the performance of ESD stress testing. The apparat |
| 5130882 |
Multilayer circuit board transient protection device |
July 14, 1992 |
| The device comprises a grommet like tube used in plated through holes in circuit boards. The MCBTPD puts a toroidal shaped non-linear terminal protection device (TPD) such as a surgector or diode between the circuit land and the ground plane. The MCBTPD plated through sleeve is cylindric |
| 5129360 |
Actively cooled effusion cell for chemical vapor deposition |
July 14, 1992 |
| An actively cooled effuser for a vapor deposition reactor is placed in very close proximity to a substrate. The actively cooled effuser has combinations of gas directing plates, cooling plates and isolation plates attached together. Reactants and coolant are input into the stack of p |
| 5128789 |
Node for grid type single mode fiber optic local area network |
July 7, 1992 |
| A controller at each node of a mesh type grid network of single mode optical fibers implements a switching algorithm which passes a given message to four neighboring nodes only once to avoid flooding the network. If a given wavelength is present on more than one input, the first to a |
| 5128443 |
Rigid-rod benzimidazole pendant benzobisazole copolymer |
July 7, 1992 |
| Provided is a para-ordered aromatic heterocyclic copolymer having repeating units of the formula --(--Q--Ar--).sub.m --(--Q--Ph--).sub.n -- wherein Q is ##STR1## wherein X is --O--, --NH-- or --S--, m is 0.05 to 0.50 and n is 1.0--m, Ph is 1,4-phenylene, and wherein Ar is ##S |
| 5126750 |
Magnetic hybrid-mode horn antenna |
June 30, 1992 |
| A magnetic corrugated horn antenna system is disclosed. This system includes a magnetic hybrid-mode horn antenna composed of a circular waveguide and a corrugated horn antenna which has a thin magnetic coating on its inner wall. The corrugation of the conical horn helps it to produce |
| 5125793 |
Turbine blade cooling with endothermic fuel |
June 30, 1992 |
| Structure and method for cooling hollow turbine rotor blades of a gas turbine engine utilizing vaporization and decomposition of an endothermic fuel are described which comprise a source of liquid endothermic fuel operatively connected to the blade, a passage for conducting the fuel |
| 5125743 |
Instrument for measuring solar magnetic fields |
June 30, 1992 |
| In a solar vector magnetograph for measuring solar magnetic fields including a telescope pointable to a solar zone and relay optics mounted there-behind, including a collimating lens, a quarter wave plate, a light polarizer, a beam expanding means, a narrow bandpass blocking filter to |
| 5125179 |
Nonmetallic tubular structure |
June 30, 1992 |
| A nonmetallic tubular structure and method of making the same comprising a tubular ceramic linear surrounded by a thermal insulating composite tube and an outer braided sleeve of a graphite fiber/epoxy composite tensioned to generate compressive stresses in the ceramic liner and maintain |
| 5125051 |
Wavelength-coded binary fiberoptic delay line apparatus for time steering of array antennas |
June 23, 1992 |
| A wavelength-coded binary fiberoptic delay line apparatus for time steering of array antennas having a plurality of delay line units serially connected to each other to provide a plurality of delay signals. Signal detecting/converting units which are connected respectively between ad |
| 5125017 |
Compton backscatter gage |
June 23, 1992 |
| A Compton x-ray backscatter gage apparatus directing x-rays from an isotopic radiation source to a region of interest in a composite structure to monitor structural integrity. The backscattered x-rays from the region of interest are directed by guides in the gage housing to radiation |
| 5124708 |
RF stability measuring system for MTI radars |
June 23, 1992 |
| The disclosed system comprises a testing system which measures the stability of a moving target indicator radar transmitter. It automatically measures the imperfections of its internal in-phase (I)/quadrature (Q) demodulator, and it consists of a control computer, a synchronizer, a f |
| 5124645 |
Transmission electron microscope (TEM) power probe for in-situ viewing of electromigration and o |
June 23, 1992 |
| A power probe for in-situ electron microscope viewing of electromigration in aluminum thin films has a probe holder, a detachable probe tip and, mounted on the probe tip, a quartz power distributor. A test specimen, such as an integrated circuit component, can be viewed inside the electr |
| 5123723 |
Ultra-high vacuum telescoping fiber optic feedthrough apparatus and method |
June 23, 1992 |
| The ultra-high vacuum telescoping fiber optic feedthrough apparatus comprises a first tubular section having thereon a mounting flange, a quartz window aperture, and a collimating lens means. The second tubular section being in sliding contact with the first tubular section has a foc |
| 5122730 |
Voltage divider for a wide band domino effect high voltage regulator |
June 16, 1992 |
| The high voltage regulator employs a field effect transistor (FET) amplifier and a shielded wide band frequency compensated RC voltage divider. The device comprises a FET amplifier used as a current source in a 20 KV power supply. The negative output of the supply is sensed by the vo |
| 5121819 |
Segmented porous damper |
June 16, 1992 |
| A damper system is disclosed in which is provided a segmented damper for damping the vibrations of a rotating shaft, the damper comprising a sealed porous fixed normally concentric cylinder surrounding the shaft, the space between the porous cylinder and the shaft being axially segmented |
| 5121239 |
Filter having adjustable spectral transmittance function |
June 9, 1992 |
| An optical filter having a variable spectral transmittance function of selectable shape is described which includes a spectrum forming element for dispersing a light beam into a characteristic spectrum, an optical system for forming an image of the spectrum and directing the image into a |
| 5120967 |
Apparatus for direct measurement of dose enhancement |
June 9, 1992 |
| A dual cavity ionization chamber provides a means to measure dose enhancement factors under a wide range of conditions. The chamber can be calibrated to give an absolute dose reading for silicon, gallium arsenide, or any other material together with the associated enhancement factor. |
| 5119482 |
Flight system for converting 12 volts 32-bit INS data into 5 volts 8-bit data pattern in real ti |
June 2, 1992 |
| An inertial Navigation System (INS) data interface box allows the transfer of INS data to standard commercial computer (i.e. Personal Computer or PCs) for flexible in-flight use of data received from the INS. The data box includes a means connected to the data bus for changing the INS ou |
| 5119341 |
Method for extending GPS to underwater applications |
June 2, 1992 |
| A system that extends the use of a navigation system which uses radio waves to a an environment which is otherwise inaccessible to radio-based position, location, or navigation services. This system provides beacons which dynamically determine their positions and broadcast data to any |
| 5118950 |
Cluster ion synthesis and confinement in hybrid ion trap arrays |
June 2, 1992 |
| A cluster ion synthesis process utilizing a containerless environment to grow in a succession of steps cluster ions of large mass and well defined distribution. The cluster ion growth proceeds in a continuous manner in a plurality of growth chambers which have virtually unlimited storage |
| 5118236 |
Floating center tapped shoulder screw |
June 2, 1992 |
| A shoulder screw having a centrally positioned borehole concentric with respect to the longitudinal axis of the screw and a cylindrical center-tapped bolt receiver loosley positioned within the centrally positioned borehole of the shoulder screw and coupled thereto by a roll pin posi |
| 5118191 |
High contrast switchable target discriminator |
June 2, 1992 |
| A high contrast remotely switchable target discriminator, particularly suitable for use with automatic guided vehicles (AGVs), is disclosed. A laser light source directs light through a first polarizer to reflect off a beam splitter toward a target, which may be an AGV guidepath. The tar |
| 5118025 |
Method to fabricate titanium aluminide matrix composites |
June 2, 1992 |
| A method for fabricating a titanium aluminide composite structure consisting of a filamentary material selected from the group consisting of silicon carbide, silicon carbide-coated boron, boron carbide-coated boron, titanium boride-coated silicon carbide and silicon-coated silicon carbid |
| 5115998 |
Annular balloon |
May 26, 1992 |
| The invention provides a double-walled, annular balloon which requires less gas to inflate than its volume would indicate. The balloon is formed of double-walled gores joined by continuous overlapping seams, in the longitudinal direction, with intermittent seams in the latitudinal di |
| 5115335 |
Electrooptic fabry-perot pixels for phase-dominant spatial light modulators |
May 19, 1992 |
| Phase enhancement by resonant Fabry-Perot picture elements in III-V semiconductor spatial light modulators (SLMs) is disclosed. For 95% reflecting electrodes, a phase modulation of 0.7.pi. rad is found in transmission when the electrooptic input phase is 0.06.pi. rad. A resonant phas |
| 5115246 |
Radar target locating and tracking apparatus using a dual-interleaved pulse train radar waveform |
May 19, 1992 |
| A radar target locating and tracking apparatus utilizing a data processor unit to process a dual-interleaved pulse train radar waveform to provide unambiguous target location. The data processor utilizes coarse range, fine range and Doppler signals which are derived from the transmitted |
| 5113660 |
High temperature combustor liner |
May 19, 1992 |
| A combustor shield assembly is provided wherein a plurality of ceramic tiles are mounted on a ceramic support panel, which panel has a plurality of keyhole-shaped apertures therethrough to receive a plurality of ceramic tiles, each of which has a knob upstanding on a neck from the base o |
| 5113422 |
Radiographic interpretation trainer/test system |
May 12, 1992 |
| An improved system for training and testing radiographic interpreters is providing by cracking or otherwise causing structural defects in vinyl floor tiles which, when radiographic images of the floor tiles are made, produce images that accurately mimic the radiographic images of structu |
| 5113193 |
Autonomous synchronization of a bistatic synthetic aperture radar (SAR) system |
May 12, 1992 |
| An airborne bistatic radar synchronization apparatus and process is presented which receives clutter point echo returns from the bistatic radar receiver on a penetrator aircraft, and determines therefrom the location of the illuminator aircraft without the need of receiving direct pa |
| 5111515 |
Image deconvolution by a logarithmic exponential nonlinear joint transform process |
May 5, 1992 |
| A logarithmic/exponential nonlinear joint transform processor performs image deconvolution and is used to restore smeared or out of the focus degraded images. The correct Fourier phase of the original signal is restored in the joint power spectrum of the smeared image and the smearing |
| 5110071 |
Personnel capsule extraction apparatus |
May 5, 1992 |
| A personnel capsule extraction apparatus having a personnel capsule mounted on extraction platform which is ejected from a low flying aircraft at an altitude between five and ten feet above the ground. A drougue parachute is utilized to deploy a large extraction parachute which pulls the |
| 5109702 |
Method for determining liquefaction potential of cohesionless soils |
May 5, 1992 |
| A method for determining the liquefaction potential of cohesionless (granular) soils is provided in which a rotational shear vane assembly having a plurality of radially disposed blades (herein a Piezovane) is mounted to a shaft having a porewater pressure transducer mounted to such |
| 5109188 |
Instantaneous frequency measurement receiver with bandwidth improvement through phase shifted sa |
April 28, 1992 |
| This is a technique for extending the frequency range which employs a power divider having two outputs, one output being supplied to a first A/D converter, and the other output being supplied via a delay device to a second A/D converter. A processor receives the outputs of the two A/D |
| 5108854 |
Battery with separate electrolyte storage tank |
April 28, 1992 |
| A battery cell of extended shelf life, which has a separate electrolyte storage tank having screened outlet ports, which tank is mounted within another container to define an annulus therebetween, which annulus defines a passageway to a screened outlet port and thence to a battery cell, |
| 5106940 |
Dihydroxy-pendant rigid-rod benzobisazole polymer |
April 21, 1992 |
| There are provided novel rod-like heterocyclic aromatic polymers having repeating groups of the formula: ##STR1## wherein Y is --S--, --O-- or --NR--, R is -H, an alkyl group having 1 to 4 carbon atoms or an aromatic group having 1 or 2 aromatic rings, and the bullet symbol (.cnd |
| 5106570 |
Intense negative ion source |
April 21, 1992 |
| A method for generating a beam of negatively charged hydrogen ions is described which comprises the steps of providing a source of metal hydride, heating the hydride to extract either atomic hydrogen or negative hydrogen ions directly therefrom, directing an electron beam onto the hy |
| 5104460 |
Method to manufacture titanium aluminide matrix composites |
April 14, 1992 |
| A method for fabricating a composite structure consisting of a filamentary material selected from the group consisting of silicon carbide, silicon carbide-coated boron, boron carbide-coated boron, titanium boride-coated silicon carbide and silicon-coated silicon carbide, embedded in an a |
| 5104064 |
Pallet end stop |
April 14, 1992 |
| A floor-mounted, retractable, energy absorbing pallet end stop assembly for use in cargo aircraft and the like is described. The pallet end stop assembly mounts in the forward portion of an aircraft to stop and hold in place rows of cargo pallets. The pallet end stop rotates from a stowe |
| 5103684 |
Material cutting tool |
April 14, 1992 |
| A safe cutting tool for cutting and undercutting samples of solid material e.g., from solid rocket propellant wherein a blade curves sidewise around an opening to define a sleeve, the edges of which are opposed cutting edges which bevel into the opening from each opposed outside edge. Th |
| 5103495 |
Partitioned optical delay line architecture for time steering of large 1-D array antennas |
April 7, 1992 |
| A partitioned optical delay line apparatus for time-steering large array antenna converting microwave signals to optical signals which are optically delayed in binary programmable fiberoptic delay lines to provide a number of output signal delay sets. |
| 5103239 |
Silicon nitride articles with controlled multi-density regions |
April 7, 1992 |
| A monolithic silicon nitride radome structure having a forward portion, an after portion and a transition portion therebetween, is provided. The forward portion has a density of about 0.75 to 1.0 g/cc, the after portion has a density of about 1.6 to 2.0 g/cc and the transition portion ha |
| 5102351 |
Shielded electric cable and harness with strain relief |
April 7, 1992 |
| In an electric cable and harness, the harness having a backshell-connector assembly with a hollow cable entry flange at the rear of the backshell, a plurality of cables, each cable having one or more metal conductors within an insulating sleeve and within a flexible metallic tubular shie |
