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| Number | Title | Issue Date |
| 5360491 | ଲ-silicon carbide protective coating and method for fabricating same A polycrystalline beta-silicon carbide film or coating and method for forming same on components, such as the top of solar cells, to act as an extremely hard protective surface, and as an anti-reflective coating. This is achieved by DC magnetron co-sputte... | 11/01/1994 |
| 5349194 | Microgap ultra-violet detector A microgap ultra-violet detector of photons with wavelengths less than 400 run (4000 Angstroms) which comprises an anode and a cathode separated by a gas-filled gap and having an electric field placed across the gap. Either the anode or the cathode is sem... | 09/20/1994 |
| 5294789 | Gamma-insensitive optical sensor An ultra-violet/visible/infra-red gamma-insensitive gas avalanche focal plane array comprising a planar photocathode and a planar anode pad array separated by a gas-filled gap and across which is applied an electric potential. Electrons ejected from the p... | 03/15/1994 |
| 5264108 | Laser patterning of laminated structures for electroplating A process for laser patterning of a substrate so that it can be subsequently electroplated or electrolessly plated. The process utilizes a laser to treat an inactive (inert) layer formed over an active layer to either combine or remove the inactive layer ... | 11/23/1993 |
| 5108168 | High resolution telescope including an array of elemental telescopes aligned along a common axis and supported on a space frame with a pivot at its geometric center A large effective-aperture, low-cost optical telescope with diffraction-limited resolution enables ground-based observation of near-earth space objects. The telescope has a non-redundant, thinned-aperture array in a center-mount, single-structure space fr... | 04/28/1992 |
| 5105434 | AlGaAs diode pumped tunable chromium lasers An all-solid-state laser system is disclosed wherein the laser is pumped in the longwave wing of the pump absorption band. By utilizing a laser material that will accept unusually high dopant concentrations without deleterious effects on the crystal latti... | 04/14/1992 |
| 5096167 | Spring structure for a thermionic converter emitter support arrangement A support is provided for use in a thermionic converter to support an end of an emitter to keep it out of contact with a surrounding collector while allowing the emitter end to move axially as its temperature changes. The emitter end (34) is supported by ... | 03/17/1992 |
| 5084312 | Molten metal containment vessel with rare earth oxysulfide protective coating thereon and method of making same An improved molten metal containment vessel is disclosed in which wetting of the vessel's inner wall surfaces by molten metal is inhibited by coating at least the inner surfaces of the containment vessel with one or more rare earth oxysulfide or rare eart... | 01/28/1992 |
| 5080146 | Method and apparatus for filling thermal insulating systems A method for filling insulated glazing units is disclosed. The method utilizes a vacuum chamber in which the insulated glazing units are placed. The insulated glazing units and vacuum chamber are evacuated simultaneously. The units are then refilled with ... | 01/14/1992 |
| 5081163 | Melamine-formaldehyde aerogels Organic aerogels that are transparent and essentially colorless are prepa from the aqueous, sol-gel polymerization of melamine with formaldehyde. The melamine-formaldehyde (MF) aerogels have low densities, high surface areas, continuous porsity, ultrafin... | 01/14/1992 |
| 5061216 | Ionization chamber dosimeter A method for fabricating an ion chamber dosimeter collecting array of the type utilizing plural discrete elements formed on a uniform collecting surface which includes forming a thin insulating layer over an aperture in a frame having surfaces, forming a ... | 10/29/1991 |
| 5047623 | Transparent selective illumination means suitable for use in optically activated electrical switches and optically activated electrical switches constructed using same A planar transparent light conducting means and an improved optically activated electrical switch made using the novel light conducting means are disclosed. The light conducting means further comprise light scattering means on one or more opposite planar ... | 09/10/1991 |
| 5019552 | Long-laser-pulse method of producing thin films A method of depositing thin films by means of laser vaporization employs a long-pulse laser (Nd-glass of about one millisecond duration) with a peak power density typically in the range 105 -106 W/cm2. The method may be us... | 05/28/1991 |
| 5015924 | Pupillary efficient lighting system A lighting system having at least two independent lighting subsystems each with a different ratio of scotopic illumination to photopic illumination. The radiant energy in the visible region of the spectrum of the lighting subsystems can be adjusted relati... | 05/14/1991 |
| 5003980 | Method and apparatus for measuring lung density by Compton backscattering The density of the lung of a patient suffering from pulmonary edema is monitored by irradiating the lung by a single collimated beam of monochromatic photons and measuring the energies of photons Compton backscattered from the lung by a single high-resolu... | 04/02/1991 |
| 4995420 | Glove box valve system A valve system is provided which enables the opening and closing of a valve to be controlled from outside a hermetically-sealed container such as a glove box. The system also is capable of adjusting the packing nut of the valve from outside the container.... | 02/26/1991 |
| 4994706 | Field free, directly heated lanthanum boride cathode A directly heated cylindrical lanthanum boride cathode assembly is disclosed which minimizes generation of magnetic fields which would interfere with electron emission from the cathode. The cathode assembly comprises a lanthanum boride cylinder in electri... | 02/19/1991 |
| 4990831 | Spark gap switch system with condensable dielectric gas A spark gap switch system is disclosed which is capable of operating at a high pulse rate comprising an insulated switch housing having a purging gas entrance port and a gas exit port, a pair of spaced apart electrodes each having one end thereof within t... | 02/05/1991 |
| 4978509 | Lamella settler crystallizer A crystallizer which incorporates a lamella settler and which is particularly applicable for use in batteries and power cells for electric vehicles or stationary applications. The lamella settler can be utilized for coarse particle separation or for agglo... | 12/18/1990 |
| 4969703 | Optical fiber stripper positioning apparatus An optical fiber positioning apparatus for an optical fiber stripping device is disclosed which is capable of providing precise axial alignment between an optical fiber to be stripped of its outer jacket and the cutting blades of a stripping device. The a... | 11/13/1990 |
| 4969283 | Firearm equipped with live round inhibiting means and method of making same A firearm is disclosed having live round inhibiting means mounted in the barrel of the firearm which permits a blank cartridge to be loaded into a firearm and fired while preventing the loading and firing of a live round. The live round inhibiting means c... | 11/13/1990 |
| 4970433 | Apparatus and method for tuned unsteady flow purging of high pulse rate spark gaps A spark gap switch apparatus is disclosed which is capable of operating at a high pulse rate which comprises an insulated housing; a pair of spaced apart electrodes each having one end thereof within a first bore formed in the housing and defining a spark... | 11/13/1990 |
| 4966763 | Direct vapor/solid synthesis of mercuric iodide using compounds of mercury and iodine A process is disclosed for producing high purity mercuric iodide by passing a gaseous source of a mercuric compound through a particulate bed of a low vapor pressure iodide compound which is maintained at an elevated temperature which is the lower of eith... | 10/30/1990 |
| 4963319 | Thermionic converter emitter support arrangement A support is provided for use in a thermionic converter to support an end an emitter to keep it out of contact with a surrounding collector while allowing the emitter end to move axially at its temperatures changes. The emitter end (34) is supported by a... | 10/16/1990 |
| 4948371 | System for training and evaluation of security personnel in use of firearms An interactive video display system comprising a laser disc player with a remote large-screen projector to view life-size video scenarios and a control computer. A video disc has at least one basic scenario and one or more branches of the basic scenario w... | 08/14/1990 |
| 4935214 | Process for producing high purity silicon nitride by the direct reaction between elemental silicon and nitrogen-hydrogen liquid reactants A process is disclosed for producing, at a low temperature, a high purity reaction product consisting essentially of silicon, nitrogen, and hydrogen which can then be heated to produce a high purity alpha silicon nitride. The process comprises: reacting t... | 06/19/1990 |
| 4927599 | Thermionic converter emitter support arrangement A support is provided for use in a therminonic converter to support an end of an emitter to keep it out of contact with a surrounding collector while allowing the emitter end to move axially as its temperature changes. The emitter end (34) is supported by... | 05/22/1990 |
| 4927718 | Novel air electrode for metal-air battery with new carbon material and method of making same A novel carbonaceous electrode support material is disclosed characterized by a corrosion rate of 0.03 wt. %/hour or less when measured a5 550 millivolts vs. a Hg/HgO electrode in a 30 wt. % KOH electrolyte a5 30° C. The electrode support material compri... | 05/22/1990 |
| 4921515 | Advanced regenerative absorption refrigeration cycles Multi-effect regenerative absorption cycles which provide a high coefficient of performance (COP) at relatively high input temperatures. An absorber-coupled double-effect regenerative cycle (ADR cycle) (10) is provided having a single-effect absorption cy... | 05/01/1990 |
| 4917974 | Lithium/organosulfur redox cell having protective solid electrolyte barrier formed on anode and method of making same A lithium/organosulfur redox cell is disclosed which comprises a solid lium anode, a liquid organosulfur cathode, and a barrier layer formed adjacent a surface of the solid lithium anode facing the liquid organosulfur cathode consisting of a reaction pro... | 04/17/1990 |
| 4888861 | Annular array and method of manufacturing same A method for manufacturing an annular acoustic transducer array from a plate of transducer material, which enables production of precision aligned arrays at low cost. The circular plate is sawed along at least two lines that are radial to the axis of the ... | 12/26/1989 |
| 4886598 | Liquid membrane coated ion-exchange column solids This invention relates to a method for improving the performance of liquid embrane separations by coating a liquid membrane onto solid ion-exchange resin beads in a fixed bed. Ion-exchange beads fabricated from an ion-exchange resin are swelled with water ... | 12/12/1989 |
| 4885470 | Integrally formed radio frequency quadrupole An improved radio frequency quadrupole (10) is provided having an elongate housing (11) with an elongate central axis (12) and top, bottom and two side walls (13a-d) symmetrically disposed about the axis, and vanes (14a-d) formed integrally with the walls... | 12/05/1989 |
