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| Number | Title | Issue Date |
| 5885484 | High temperature thermometric phosphors A high temperature phosphor consists essentially of a material having the general formula LuPO4 :Dy.sub.(x),Euy) wherein: 0.1 wt %ࣘxࣘ20 wt % and 0.1 wt %ࣘyࣘ20 wt %. The high temperature phosphor is in contact with an article whose... | 03/23/1999 |
| 5877229 | High energy electron beam curing of epoxy resin systems incorporating cationic photoinitiators A mixture of epoxy resins such as a semi-solid triglycidyl ether of tris (hydroxyphenyl) methane and a low viscosity bisphenol A glycidyl ether and a cationic photoinitiator such as a diaryliodonium salt is cured by irradiating with a dosage of electron b... | 03/02/1999 |
| 5871838 | Method for rapid fabrication of fiber preforms and structural composite materials A densified carbon matrix carbon fiber composite preform is made by vacuum molding an aqueous slurry of carbon fibers and carbonizable organic powder to form a molded part. The molded part is dried in an oven at 50° C. for 14 hours and hot pressed at 200... | 02/16/1999 |
| 5780717 | In-line real time air monitor An in-line gas monitor capable of accurate gas composition analysis in a continuous real time manner even under strong applied vacuum conditions operates by mixing an air sample with helium forming a sample gas in two complementary sample loops embedded i... | 07/14/1998 |
| 5777214 | In-situ continuous water analyzing module An in-situ continuous liquid analyzing system for continuously analyzing volatile components contained in a water source comprises: a carrier gas supply, an extraction container and a mass spectrometer. The carrier gas supply continuously supplies the car... | 07/07/1998 |
| 5744075 | Method for rapid fabrication of fiber preforms and structural composite materials A densified carbon matrix carbon fiber composite preform is made by vacuum molding an aqueous slurry of carbon fibers and carbonizable organic powder to form a molded part. The molded part is dried in an oven at 50° C. for 14 hours and hot pressed at 200... | 04/28/1998 |
| 5734089 | In-situ continuous water monitoring system An in-situ continuous liquid monitoring system for continuously analyzing volatile components contained in a water source comprises: a carrier gas supply, an extraction container and a mass spectrometer. The carrier gas supply continuously supplies the ca... | 03/31/1998 |
| 5730528 | High temperature thermometric phosphors for use in a temperature sensor A high temperature phosphor consists essentially of a material having the general formula LuPO4 :Dy.sub.(x),Eu.sub.(y), wherein: 0.1 wt %ࣘxࣘ20 wt % and 0.1 wt %ࣘyࣘ20 wt %. The high temperature phosphor is in contact with an article whos... | 03/24/1998 |
| 5725693 | Filler metal alloy for welding cast nickel aluminide alloys A filler metal alloy used as a filler for welding east nickel aluminide alloys contains from about 15 to about 17 wt. % chromium, from about 4 to about 5 wt. % aluminum, equal to or less than about 1.5 wt. % molybdenum, from about 1 to about 4.5 wt. % zir... | 03/10/1998 |
| 5726216 | Toughened epoxy resin system and a method thereof Mixtures of epoxy resins with cationic initiators are curable under high energy ionizing radiation such as electron beam radiation, X-ray radiation, and gamma radiation. The composition of this process consists of an epoxy resin, a cationic initiator such... | 03/10/1998 |
| 5709936 | Composite coating for low friction and wear applications and method thereof An article having a multiphase composite lubricant coating of a hard refractory matrix phase of titanium nitride dispersed with particles of a solid lubricating phase of molybdenum disulfide is prepared by heating the article to temperatures between 350°... | 01/20/1998 |
| 5646336 | Atomizing, continuous, water monitoring module A system for continuously analyzing volatile constituents of a liquid is described. The system contains a pump for continuously pumping the liquid to be tested at a predetermined flow rate into an extracting container through a liquid directing tube havin... | 07/08/1997 |
| 5637816 | Metal matrix composite of an iron aluminide and ceramic particles and method thereof A metal matrix composite comprising an iron aluminide binder phase and a ceramic particulate phase such as titanium diboride, zirconium diboride, titanium carbide and tungsten carbide is made by heating a mixture of iron aluminide powder and particulates ... | 06/10/1997 |
| 5013694 | Titanium diboride-chromium diboride-yttrium titanium oxide ceramic composition and a process for making the same A ceramic composition is described. The ceramic composition consists essentially of from about 84 to 96 w/o titanium diboride, from about 1 to 9 w/o chromium diboride, and from about 3 to about 15 w/o yttrium-titanium-oxide. A method of making the ceramic... | 05/07/1991 |
| 4952422 | A method of coating a layer of an yttrium vanadate phosphor contained in a fluorescent lamp with Y2 O3 or Al2 O3 and lamps made therefrom A fluorescent lamp containing a Y2 O3 or Al2 O3 coating on a layer of yttrium vanadate phosphor and a method of coating the layer of the yttrium vanadate phosphor with a continuous protective coating of Y2 | 08/28/1990 |
| 4883217 | Method of bonding a ceramic article to a metal article A new and improved method of bonding a bonded ceramic-metal article is described. The ceramic-metal article comprises a ceramic article, such as a lanthana-strengthened yttria article, bonded to a metal article, such as niobium, by a layer of a brazing ma... | 11/28/1989 |
| 4883218 | Method of brazing a ceramic article to a metal article A new and improved method of brazing a ceramic-metal article is described. The ceramic-metal article comprises a ceramic article, such as a lanthana-strengthened yttria article, bonded to a metal article, such as niobium, by a layer of a brazing material,... | 11/28/1989 |
| 4874984 | Fluorescent lamp based on a phosphor excited by a molecular discharge A fluorescent lamp based on a phosphor excited by a molecular discharge is described. The fluorescent lamp comprises a fluorescent lamp coated with a manganese doped magnesium aluminate phosphor on the inside surface of the lamp envelope. The fluorescent ... | 10/17/1989 |
| 4858069 | Electronic housing for a satellite earth station A compact electronic housing for a satellite earth station is described. The compact electronic housing comprises a first compartment and a second compartment separated by a panel common to both compartments. The first compartment contains electronic comp... | 08/15/1989 |
| 4834928 | Doped silicon nitride article A process for making a homogeneous yttria-alumina doped silicon nitride article is described. A uniform coating of yttria and alumina is applied to the surface of silicon nitride particles by a chemical application of the nitrates of yttrium and aluminum ... | 05/30/1989 |
| 4833000 | Ceramic monolithic structure having an internal cavity contained therein and a method of preparing the same A method of preparing ceramic monolithic structures with an internal cavity and passageways is described. A thin sheet of a ceramic material is formed by spreading the material on a glass plate with a doctor blade. Individual sheets of the material are cu... | 05/23/1989 |
| 4832935 | Method for dehydrating hydrogen fluoride A method for controlling the water present in hydrogen fluoride is described which effectively removes all the water contained in the hydrogen fluoride solution to form other compounds that either have extremely low vapor pressure or are acceptable in a p... | 05/23/1989 |
| 4816233 | Ion exchange method for the recovery of scandium A method of recovering quantitatively trace amounts of scandium from aqueous solutions containing large amounts of other metals consists of reducing any manganese and iron in the solution to the divalent states of manganese and iron. The solution is then ... | 03/28/1989 |
| 4814128 | Process for making a homogeneous doped silicon nitride article A process for making a homogeneous yttria-alumina doped silicon nitride article is described. A uniform coating of yttria and alumina is applied to the surface of silicon nitride particles by a chemical application of the hydroxides of yttrium and aluminu... | 03/21/1989 |
| 4808285 | Method of making micro-optical components on polydiacetylene optical devices A method of making Y couplers and grating optical waveguides of the present invention comprises exposing the polydiacetylene to an e-beam or a similar exposing means causing a change in the index of refraction of the polydiacetylene. In the case of e-beam... | 02/28/1989 |
| 4806295 | Ceramic monolithic structure having an internal cavity contained therein and a method of preparing the same A method of preparing ceramic monolithic structures with an internal cavity and passageways is described. A thin sheet of a ceramic material is formed by spreading the material on a glass plate with a doctor blade. Individual sheets of the material are cu... | 02/21/1989 |
| 4806389 | Method of treating a coated phosphor A method for preventing the hydration/solubilization of the protective oxide coating of a phosphor is described. The method involves coating of the oxide coated phosphor particles with a continuous hydrophobic coating. After the phosphor particles are coa... | 02/21/1989 |
| 4804231 | Point attack mine and road milling tool with replaceable cutter tip A cutter bit holder which can be used as a point attack mine tool and a road milling tool is described. The cutter bit holder has a replaceable cutter tip which can be replaced in the field when the cutter tip is worn by unscrewing the flange from the sha... | 02/14/1989 |
| 4803400 | Pre-water-based suspension phosphor treatment process A method for eliminating carbonaceous contaminants and preventing the hydration/solubilization of the oxide coating of a phosphor is described. The method involves the annealing of the oxide coated phosphor at a temperature and for a period sufficient to ... | 02/07/1989 |
| 4793716 | Thermal shock test apparatus and the method of testing A thermal shock apparatus comprises a hot gas stream impinging means, a hot gas stream impinging control means, a positioning means for the hot gas stream impinging means, and a sample holding means. A sample is subjected to an essentially instantaneous i... | 12/27/1988 |
| 4788687 | Fluorozirconate fiber optic laser A laser has been made using a Nd3+ -doped fluoro-zirconate heavy metal fluoride (HMF) glass multimode fiber which lases in a range equal to or greater than 1.32 micrometers. The fiber laser was made for forming a glass fiber from a core glass c... | 11/29/1988 |
| 4783136 | Optical waveguides and methods for making same An optical waveguide made from a unitary organic film has a polydiacetylene core region and a diacetylene monomer cladding substrate region. The index of refraction of the polydiacetylene core region is greater than the index of refraction of the diacetyl... | 11/08/1988 |
| 4783430 | Process of making high purity aluminum nitride A high purity aluminum nitride is made by precipitating (CH3)3 Al:NH3, washing it with hexane and pyrolyzing it to AlN. The precipitation is obtained by reacting a hexane solution of trimethyl aluminum with high purity anh... | 11/08/1988 |
| 4778581 | Method of making fluorescent lamp with improved lumen output The lumen output of a fluorescent lamp is improved by the triode radio frequency sputter coating of a continuous protective coating of vitreous alumina overlying the lamp phosphor layer.... | 10/18/1988 |
| 4776867 | Process for molding optical components of silicate glass to a near net shape optical precision A silicate optical glass article is made by forming a gel from a hydrolyzed silicon alkoxide. The resulting gel is molded, cured, dried, solvents removed, heated to form a dense glass having near net shape dimensions thereby reducing expensive polishing s... | 10/11/1988 |
| 4765909 | Ion exchange method for separation of scandium and thorium A method for a quantitative separation of scandium from thorium comprises adsorption of both metals on a cation exchange resin followed by selective elution of scandium with an acidic solution of a chelating agent followed by the elution of thorium by a s... | 08/23/1988 |
| 4749513 | Green emitting phosphor An efficient green emitting phosphor results from the coactivation of yttrium fluoride with gadolinium and erbium. The excitation energy absorbed by the Gd3+ centers is transferred non-radiatively to minority Er3+ centers, whose emis... | 06/07/1988 |
| 4748391 | Yellow green barium lanthanum silicate oxyapatite phosphor, a fluorescent lamp containing the same, and a method thereof A method for preparing a barium lanthanum silicate oxyapatite europium activated phosphor and a barium lanthanum silicate oxyapatite manganese 2+ and europium 2+ or europium 2+ activated phosphor having a yellow green emission when activated by 254 nm exc... | 05/31/1988 |
| 4736136 | Discharge lamps with coated ceramic arc tubes and fabrication thereof A high pressure sodium lamp brightness was increased 8.9%, its relative voltage stability was improved by a factor of 4, and its relative maintenance was improved by a factor of 3 over a 24,000 hour lifetest. These improvements were accomplished by the ap... | 04/05/1988 |
| 4708838 | Method for fabricating large cross section injection molded ceramic shapes A method for fabricating large, greater than one centimeter cross section, high density silicon nitride by injection molding process has been developed. The method requires use of a controlled starting powder, a novel binder removal process, a prefiring s... | 11/24/1987 |
