Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 5345780 | Bi-flow expansion device A bi-flow expansion device for a heat pump or other apparatus where fluid avel is reversed with different required flow rates in each direction. The device comprises a tubular member mounted in a refrigerant line and having non-symmetrical entrance-exits ... | 09/13/1994 |
| 5085058 | Bi-flow expansion device A bi-flow expansion device for a heat pump or other apparatus where fluid avel is reversed with different required flow rates in each direction. The device comprises a tubular member mounted in a refrigerant line and having non-symmetrical entrance-exits ... | 02/04/1992 |
| 4339511 | Preparation of powders suitable for conversion to useful ଲ-aluminas A process for forming a precursor powder which, when suitably pressed and sintered forms highly pure, densified ଲ- or ଲ"-alumina, comprising the steps of: (1) forming a suspension (or slurry) of Bayer-derived Al(OH)3 in a water-misc... | 07/13/1982 |
| 4326117 | Weld braze technique High-strength metal joints are formed by a combined weld-braze technique. A hollow cylindrical metal member is forced into an undersized counterbore in another metal member with a suitable braze metal disposed along the bottom of the counterbore. Force an... | 04/20/1982 |
| 4309249 | Neutron source, linear-accelerator fuel enricher and regenerator and associated methods A device for producing fissile material inside of fabricated nuclear elements so that they can be used to produce power in nuclear power reactors. Fuel elements, for example, of a LWR are placed in pressure tubes in a vessel surrounding a liquid lead-bism... | 01/05/1982 |
| 4302679 | Method of determining the x-ray limit of an ion gauge An ion gauge having a reduced "x-ray limit" and means for measuring that limit. The gauge comprises an ion gauge of the Bayard-Alpert type having a short collector and having means for varying the grid-collector voltage. The "x-ray limit" (i.e. the collector c... | 11/24/1981 |
| 4293089 | Brazing method There is disclosed a positive cathode electrode structure formed by brazing a thin porous membrane to a backing material by preselecting a predetermined area of the thin porous membrane and thereafter providing a braze flow barrier throughout the remainde... | 10/06/1981 |
| 4292527 | Radiation detection system A radiation detection system including a radiation-to-light converter and fiber optic wave guides to transmit the light to a remote location for processing. The system utilizes fluors particularly developed for use with optical fibers emitting at waveleng... | 09/29/1981 |
| 4291105 | Bimetallic strip for low temperature use There is provided a class of mechanically pre-stressed structures, suitably bi-layer strips comprising a layer of group 5 transition metals in intimate contact with a layer of an intermetallic compound of said transition metals with certain group 3A, 4A o... | 09/22/1981 |
| 4281256 | Compressed air energy storage system An internal combustion reciprocating engine is operable as a compressor during slack demand periods utilizing excess power from a power grid to charge air into an air storage reservoir and as an expander during peak demand periods to feed power into the p... | 07/28/1981 |
| 4281289 | Method of determining interwell oil field fluid saturation distribution A method of determining the oil and brine saturation distribution in an oil field by taking electrical current and potential measurements among a plurality of open-hole wells geometrically distributed throughout the oil field. Poisson's equation is utiliz... | 07/28/1981 |
| 4272193 | Method and apparatus for timing of laser beams in a multiple laser beam fusion system The optical path lengths of a plurality of comparison laser beams directed to impinge upon a common target from different directions are compared to that of a master laser beam by using an optical heterodyne interferometric detection technique. The techni... | 06/09/1981 |
| 4266852 | Fiber optics welder having movable aligning mirror A system for welding fiber optic waveguides together. The ends of the two fibers to be joined together are accurately, collinearly aligned in a vertical orientation and subjected to a controlled, diffuse arc to effect welding and thermal conditioning. A f... | 05/12/1981 |
| 4253190 | Communications system using a mirror kept in outer space by electromagnetic radiation pressure A method and system are described for transmitting electromagnetic radiation by using a communications mirror located between about 100 kilometers and about 200 kilometers above ground. The communications mirror is kept aloft above the atmosphere by the p... | 02/24/1981 |
| 4253023 | Radiation detection system using semiconductor detector with differential carrier trapping and mobility A system for obtaining improved resolution in relatively thick semiconductor radiation detectors, such as HgI2, which exhibit significant hole trapping. Two amplifiers are used: the first measures the charge collected and the second the contrib... | 02/24/1981 |
| 4252668 | Process for preparation of potassium-38 A solution of potassium-38 suitable for use as a radiopharmaceutical and a method for its production. Argon is irradiated with protons having energies above the threshold for the 40 Ar(p,3n)38 K reaction. The resulting potassium-38 i... | 02/24/1981 |
| 4251340 | Terpolymerization of ethylene, sulfur dioxide and carbon monoxide This invention relates to a high molecular weight terpolymer of ethylene, sulfur dioxide and carbon monoxide stable to 280° C. and containing as little as 36 mol % ethylene and about 41-51 mol % sulfur dioxide; and to the method of producing said terpoly... | 02/17/1981 |
| 4241672 | Method of regulating the amount of underfire air for combustion of wood fuels in spreader-stroke boilers A method of metering underfire air for increasing efficiency and reducing particulate emissions from wood-fire, spreader-stoker boilers is disclosed. A portion of the combustion air, approximately one pound of air per pound of wood, is fed through the gra... | 12/30/1980 |
| 4230959 | Magnetohydrodynamic (MHD) channel corner seal A corner seal for an MHD duct includes a compressible portion which contacts the duct walls and an insulating portion which contacts the electrodes, sidewall bars and insulators. The compressible portion may be a pneumatic or hydraulic gasket or an open-c... | 10/28/1980 |
| 4225781 | Solar tracking apparatus The invention relates to a solar tracking device which tracks the position of the sun using paired, partially-shaded photocells. Auxiliary photocells are used for initial acquisition of the sun and for the suppression of false tracking when the sun is obs... | 09/30/1980 |
| 4220632 | Reduction of nitrogen oxides with catalytic acid resistant aluminosilicate molecular sieves and ammonia Noxious nitrogen oxides in a waste gas stream such as the stack gas from a fossil-fuel-fired power generation plant or other industrial plant off-gas stream is catalytically reduced to elemental nitrogen and/or innocuous nitrogen oxides employing ammonia ... | 09/02/1980 |
| 4089809 | Regenerable sorbent and method for removing hydrogen sulfide from hot gaseous mixtures Hydrogen sulfide is effectively removed from hot gaseous mixtures useful for industrial purposes by employing a solid absorbent consisting of silica-supported iron oxide in pellet form.... | 05/16/1978 |
| 4078704 | Coal feed lock A coal feed lock is provided for dispensing coal to a high pressure gas producer with nominal loss of high pressure gas. The coal feed lock comprises a rotor member with a diametral bore therethrough. A hydraulically activated piston is slidably mounted i... | 03/14/1978 |
| 4063089 | X-ray chemical analyzer for field applications A self-supporting portable field multichannel X-ray chemical analyzer system comprising a lightweight, flexibly connected, remotely locatable, radioisotope-excited sensing probe utilizing a cryogenically-cooled solid state semi-conductor crystal detector ... | 12/13/1977 |
| 4061921 | Infrared laser system An infrared laser system and method for isotope separation may comprise a molecular gas laser oscillator to produce a laser beam at a first wavelength, Raman spin flip means for shifting the laser to a second wavelength, a molecular gas laser amplifier to... | 12/06/1977 |
| 4047094 | MHD generator with improved network coupling electrodes to a load An MHD generator has a plurality of segmented electrodes extending longitudinally of a duct, whereby progressively increasing high DC voltages are derived from a set of cathode electrodes and progressively increasing low DC voltages are derived from a set... | 09/06/1977 |
| 4005990 | Superconductors The structural quality of niobium germanide as a high-transition-temperature superconducting material is substantially improved by the presence of about 5 at. % oxygen. Niobium germanide having this oxygen content may readily be prepared as a bulk coating... | 02/01/1977 |
| 3996863 | Rapid ignition of fluidized bed boiler A fluidized bed boiler is started up by directing into the static bed of inert and carbonaceous granules a downwardly angled burner so that the hot gases cause spouting. Air is introduced into the bed at a rate insufficient to fluidize the entire bed. Thr... | 12/14/1976 |
| 3993450 | Electrode assembly for a fluidized bed apparatus An electrode assembly comprising a high voltage electrode having a generally cylindrical shape and being electrically connected to a high voltage source, where the cylinder walls may be open to flow of fluids and solids; an electrically grounded support e... | 11/23/1976 |
| 3983392 | Method and apparatus for measuring incombustible content of coal mine dust using gamma-ray backscatter Method and apparatus for measuring incombustible content of particulate material, particularly coal mine dust, includes placing a sample of the particulate material in a container to define a pair of angularly oriented surfaces of the sample, directing an... | 09/28/1976 |
| 3981690 | Agglomerating combustor-gasifier method and apparatus for coal gasification A method and apparatus for gasifying coal wherein the gasification takes place in a spout fluid bed at a pressure of about 10 to 30 atmospheres and a temperature of about 1800° to 2200°F and wherein the configuration of the apparatus and the manner of i... | 09/21/1976 |
| 3955753 | Gas centrifuge with driving motor 1. A centrifuge for separating gaseous constituents of different masses comprising a vertical tubular rotor, means for introducing a gas mixture of different masses into said rotor and means for removing at least one of the gas components from the rotor, ... | 05/11/1976 |
| 3949050 | Method of absorbing UF6 from gaseous mixtures in alkamine absorbents A method of recovering uranium hexafluoride from gaseous mixtures employing as an absorbent a liquid composition at least one of the components of which is chosen from the group consisting of ethanolamine, diethanolamine, and 3-methyl-3-amino-propane-diol... | 04/06/1976 |
| 3945809 | Method and apparatus for removing coarse unentrained char particles from the second stage of a two-stage coal gasifier A method and apparatus for removing oversized, unentrained char particles from a two-stage coal gasification process so as to prevent clogging or plugging of the communicating passage between the two gasification stages. In the first stage of the process,... | 03/23/1976 |
