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The United States of America as represented by the Secretary of the Air Patents
Assignee:
The United States of America as represented by the Secretary of the Air
Address:
Washington, DC
No. of patents:
3120
Patents:


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Patent Number Title Of Patent Date Issued
5178978 Fabricating integrated optics January 12, 1993
Method for fabricating components for integrated optics are provided wherein a film of poly-4BCMU on a glass substrate, is masked, e.g. with one or more metallic strips on a glass plate and such film is irradiated with, e.g. a UV lamp, tuned within the absorption band of such film, in
5178907 Process for the fabrication of high density continuous fiber preforms January 12, 1993
An aqueous composition for treating fibers for use in the resin transfer/injection molding of high density continuous fiber preforms which comprises about 0.005 to 0.05 php wetting agent, about 0.05 to 0.25 php binder, about 0.10 to 1.00 php polymer, about 0.005 to 0.05 php plasticiz
5176338 N-dimensional fighter aircraft January 5, 1993
An improved fighter aircraft has three primary lifting surfaces acting as wings on the airframe. The lifting surfaces are attached 120 degrees apart on the airframe so the fighter may turn in any direction without prior movements. The pilot has means to position himself to feel only posi
5175232 Rigid-rod benzobisazole copolymer containing cyclic phosphate ester December 29, 1992
Rigid-rod aromatic heterocyclic copolymers having repeating units of the formula: ##STR1## wherein n has a value of about 0.10 to 0.99, m is 1.0-n, Ar is a para-ordered divalent aromatic moiety, as defined hereinafter, and wherein Ba is a benzobisazole moiety of the formula:
5175068 Electrochemical cell cathode material December 29, 1992
There is provided a primary cell having an anode material, an electrolyte material and a cathode material, wherein the cathode material, in the pre-discharge condition thereof, is Na.sub.6 V.sub.10 O.sub.28. In one aspect, the invention comprises a thermal cell having a lithium metal or
5174940 Method of extruding a single polymeric fiber December 29, 1992
A method and apparatus for making aromatic heterocyclic polymeric fibers having enhanced compressive strength are 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
5172547 Electronic valve control for gas generator outflow December 22, 1992
A controlled fuel flow system from variable flow solid fuel gas generator to secondary combustor is provided, which system includes a hot gas valve which is operated by an electronic controller. The valve is mounted between the gas generator and the secondary combustor, which valve has i
5172277 Kinematic fixturing of optic components December 15, 1992
An optical mirror is kinematically mounted at its sides on one fixed point and two movable points which points are supported by a frame spaced from the mirror. One of the movable points is a ball on a cantilevered arm which rests in a cone or groove in the mirror, the other movable point
5171649 Cell with active metal electrode and molten salt electrolyte December 15, 1992
A high voltage electrochemical cell is provided which includes an active metal as anode, such as sodium, a mixture of a transition metal halide or sulfide, e.g. CuCl.sub.2 and graphite as the cathode and an electrolyte of a room temperature chloroaluminate molten salt such as MEIC-AlCl.s
5170290 Comb optical interference filter December 8, 1992
High total transmission, tunable comb filter structures are described which comprise moderately thick layers of optical material having periodic or multiply periodic refractive index modulation features comprising a multiplicity of coherently-coupled, weakly-resonant optical cavities,
5169230 Lamp for producing light intensity uniformity December 8, 1992
A circular light emitting filament is positioned adjacent an annular light blocking lip extending from a bowl-shaped reflector. A substantially conical reflector portion extends from the cancer of the reflector and has an apex coincident with the lamp projection axis. The result is that
5167711 Low-temperature ashing of hazardous plastic waste December 1, 1992
System and method for low temperature treatment of organic wastes containing potentially toxic concentrations of metals is described which comprises forming the waste material into pellets of preselected size, mixing the pellets with inert material, incrementally heating the mixture
5166942 Laser line narrowing and frequency shifting November 24, 1992
Multibeam coupling in a Kerr medium of nonlinear characteristics and finite response time is disclosed together with two different frequency spectrum examples of its use. In the first spectrum example, the modes are equally spaced and in the second spectrum the frequency separations are
5166648 Digital phase shifter apparatus November 24, 1992
A digital phase shift apparatus having a pair of single gate FETs which are connected in a common source configuration. Transmission line segments which respectively connect the sources and drains of the FET pair, provides a phase shift to an applied RF signal. The operating FET provides
5166010 Electrochemical cell cathode material November 24, 1992
There is provided a primary cell having an anode material, an electrolyte material and a cathode material, wherein the cathode material, in the pre-discharge condition thereof, is Na.sub.3 PMoW.sub.11 O.sub.40. In one aspect, the invention comprises a thermal cell having a lithium metal
5164229 Method for coating continuous tow November 17, 1992
A method for coating continuous tow which comprises the steps of: (a) transporting a tow through a coating composition to provide a coated tow having a layer of uncured coating thereon, (b) transporting the coated tow through a liquid which is immiscible with the coating composition and
5163649 Multi-axis positional gimbal November 17, 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
5163179 Platinum silicide infrared diode November 10, 1992
Platinum Silicide (PtSi) layers formed on silicon substrates are well known for their ability to image in the infrared portion of the electromagnetic spectrum out to 5.75 micrometers. The detectors are formed on p-type silicon substrates of <100> orientation. This is the preferred
5163118 Lattice mismatched hetrostructure optical waveguide November 10, 1992
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
5163005 Method of cloning printed wiring boards November 10, 1992
A method of cloning printed wiring boards by milling one side of the board to a minimum thickness, then X-raying the board to produce a film negative. This negative is photographed to provide a reversed negative which is converted to a diazo photograph.
5162965 Anti crow bar current interrupter for microwave tube transmitters November 10, 1992
A high-speed high-voltage FET current interrupter which opens the cathode circuit of microwave tubes when internal tube arcing occurs. By removing the detrimental fault current which causes degradation to the microwave tube body and grid, the longevity of the microwave tube and the pulse
5162940 Multiple energy level, multiple pulse rate laser source November 10, 1992
A multiple energy level, multiple pulse repetition frequency, common boresight laser energy source apparatus which employs phase conjugate energy reflection, achievable in a high-pressure gas retro-reflecting cell, to compensate for aberrations of the energy beam occurring in other o
5161273 Neonatal cradle November 10, 1992
A neonatal cradle is described which comprises a plastic first plate member formed to a V shaped trough defined by a two adjoining surfaces disposed at about 105.degree., a foam layer on the first member, a support member having a central notch for positioning and elevating one end of th
5161068 Superconducting searching filter November 3, 1992
An optical reflection band filter structure for selectively blocking radiation within a preselected range of wavelengths is described which comprises a plurality of multipole elements of preselected configuration deposited with prescribed spacing in a periodic array on a substrate of
5161045 Large field of view light beam transceiver having small motion of optics November 3, 1992
Coherent light from a laser is directed through first and second two dimensional planar arrays of lenslets which are moved relative to each other to enable the beam to point along any diffraction order, and fine pointing of the beam between orders is accomplished by slightly changing
5160374 Process and apparatus for preventing the pulse discharge of insulators in ionizing radiation November 3, 1992
A semi-insulating coating or surface layer is applied over insulating materials such as a circuit board or wiring harness or feedthrough insulator. The paint is electrically fixed to ground and as a result leaks away charge buildup before large pulse discharges occur. For example, pure
5157538 Silicon spatial light modulator October 20, 1992
A crystalline silicon 1.1-20 micron spatial light modulator has an X-Y array of p-i-n pixels which are selectively foward biased at low voltages to induce substantial phase shifts in the optical wavefront, by the dual injection of holes and electrons through the silicon body and parallel
5157223 Explosive attenuating structure October 20, 1992
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
5155634 Superconducting reflection filter October 13, 1992
An optical reflection band filter structure for selectively blocking radiation within a preselected range of wavelengths is described which comprises a plurality of multipole elements of preselected configuration deposited with prescribed spacing in a periodic array on a substrate of
5155493 Tape type microstrip patch antenna October 13, 1992
Single or multiple players of electrically insulating tape have adhesive applied to one surface for the dielectric of the patch antenna. Electrically conductive foil tape with adhesive applied to one surface is used to create the radiating element and the ground plane. The antenna st
5155482 Aircraft fluid vessel testing October 13, 1992
An electrical test set especially suited for use in correlating the fill sensor's output indication for a pressure vessel with a known vessel fill condition. The vessel may be the hydrazine fuel container for an aircraft such as the U.S. Air Force F-16 fighter aircraft. The tester enable
5154637 High current cable termination for pulsed power applications October 13, 1992
The terminations provide a means for connecting coaxial power cables carrying tens to hundreds of kiloamperes of pulsed current to electrical devices without producing arcing or melting during operation; and also provide mechanical support at cable ends where otherwise unsupported ends
5154557 Torque limit bolt which is reusable and has no breakaway parts October 13, 1992
A reusable torque limiting bolt having no breakaway parts is provided which has a collar rigidly coupled to an upper bolt portion via four cylindrical pins which are seated in four detents internally formed on the collar and four detents externally formed on the bolt surface. At low torq
5154370 High lift/low drag wing and missile airframe October 13, 1992
An air launched, air-to-surface missile which has extended range and reduced radar cross section for low observability is disclosed. The design uses a triangular cross section fuselage, for low profile drag and reduced weight, a very high aspect ratio, such as 22.5, folding wing for low
5151848 Supercapacitor September 29, 1992
The invention is a supercapacitor cell having electrode plates of titanium coated with ruthenia impregnated with the solid polymer electrolyte perfluorosulfonic acid. The impregnation is carried out in a high pressure shock apparatus.
5151335 Cathode material for electrochemical cells September 29, 1992
There is provided a primary cell having an anode material, an electrolyte material and a cathode material, wherein the cathode material, in the pre-discharge condition thereof, is K.sub.7 (NiV.sub.13 O.sub.30). In one aspect, the invention comprises a thermal cell having a lithium metal
5150042 On-wafer Hall-effect measurement system September 22, 1992
A non-destructive measurement system for producing whole wafer maps of sheet Hall concentration and Hall mobility in a GaAs wafer. The wafer need only have van der Pauw patterns available for the wafer measurements to be made. The measurement system includes an automatic test prober appa
5149011 Radar boresight error compensator September 22, 1992
A system for correcting the distortion of the plane waves passing through the radome covering an antenna on a missile airframe by nutating the airframe, in both pitch and yaw to quantify the error in accordance with the nutation, and then determining the radome boresight error, and then
5148734 Universal aircraft rocket/missile launcher (UARML) and triple launcher adapter (TLA) September 22, 1992
A missile launcher system for use on fixed and rotary wing aircraft to carry, arm and launch missiles and rockets. The apparatus includes a retention unit a support beam, a positive stop, an electrical interface, and a triple launcher adapter with adjustable support arms. The triple
5148317 Diffractive optical element for collimating and redistributing Gaussian input beam September 15, 1992
An optical element for producing a collimated output beam having a uniform intensity profile from a highly divergent input beam having a Gaussian intensity profile, the optical element consisting of a single convex-plano lens having a diffractive element etched into the plano side of the
5148316 Averaged amplitude encoded phase-only filters for use in Fourier transform optical correlators September 15, 1992
Method of producing an averaged amplitude mask, for use in conjunction with a phase only filter (pOF) to provide an averaged amplitude matched filter (AAMF) in a Fourier transform optical correlator, involves intensity normalizing a plurality of reference images within a given class of
5147283 Custom finger attachment September 15, 1992
A finger attachment structure and fabrication method for connection to a passive motion machine or the like in the rehabilitation and therapy of the hand and fingers is described which comprises the steps of heating a sheet of low temperature formable plastic sized to enclose a selected
5147126 Dual laser beam angular separation control apparatus September 15, 1992
A dual laser beam angular separation control apparatus has a pair of rotatable mirrored flats that minimize the angular separation of two converging beams such that the beam crossing aperture is also minimized and remains fixed at a specific point. The apparatus further minimizes the
5146368 Optical path length multiplication system September 8, 1992
This disclosure describes an optical system which serves to multiply the change in the path length of an optical system. The system employs an even number of pairs of mirrors which are displaceable along a line or lines parallel to an axis. Each segment of the optical path is between mir
5144842 Pressure transducer protection apparatus September 8, 1992
A pressure transducer apparatus having a flexible shock absorber in direct contact with the sensing element of a pressure transducer to prevent the direct application of harmful external environmental elements. A metal disk is located on the top of the shock absorber to provide mass for
5144795 Fluid cooled hot duct liner structure September 8, 1992
Liner structure for a duct carrying a heated fluid is described which comprises a substantially cylindrically shaped wall member having a corrugated inner surface contour defining a first plurality of axially extending ridges defined between a corresponding plurality of axial grooves
5142764 Method for tack-free positioning of aircraft components for subsequent fastening September 1, 1992
A spar assembly jig for tack-free positioning of aircraft spar components for subsequent fastening at a second location is provided. Pneumatically operated clamps are mounted on the frame of such jig. The spar components are laid up in such jig and the clamps closed thereon to hold the m
5141603 Capacitor method for improved oxide dielectric August 25, 1992
Capacitor structure capable of achieving increased energy storage density is disclosed together with a fabrication sequence for the capacitor and its anodic oxide dielectric material. Soft porous aluminum oxide which has been formed in a first anodization step and has been densified or
5140651 Semiconductive guided-wave programmable optical delay lines using electrooptic fabry-perot eleme August 18, 1992
Electrically controlled Fabry-Perot resonator elements are created in a semiconductor channel waveguide by etching two in-channel mirror facets (slots) and by positioning the resulting resonator core in the midregion of a P-I-N diode or field-effect transistor. A large number of FPs can
5140092 Rigid-rod benzimidazole pendant benzobisazo polymer August 18, 1992
Provided is a para-ordered aromatic heterocyclic polymer having repeating units of the formula --(--Q--Ar--)-- wherein Q is ##STR1## wherein X is --O--, --NH-- or --S--, and wherein Ar is ##STR2##
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