Assignee: General Atomic Company

Location: SanDiego, CA
No. of patents: 128

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Number	Title	Issue Date
4369636	Methods and apparatus for reducing heat introduced into superconducting systems by electrical leads Methods and apparatus are provided for minimizing heat introduced by electrical leads into the cryogenic liquid in which a superconducting magnet is immersed. The electrical leads have normal portions extending from exterior of the cryogenic liquid contai...	01/25/1983
4356144	Closure hold-down system for a reactor vessel A closure hold-down system for a prestressed concrete reactor vessel is disclosed which employs a concrete plug having an annular liner thereon and adapted to be received within the upper open end of a cavity in the reactor vessel. A prestressed concrete ...	10/26/1982
4354998	Method and apparatus for removing ions trapped in a thermal barrier region in a tandem mirror fusion reactor A method and apparatus for clearing thermal barrier regions of trapped ions in a tandem mirror fusion reactor apparatus utilizing a bend at each end of the cylindrical plasma chamber within which bend the thermal barrier is positioned. Ions trapped in sai...	10/19/1982
4352722	Integrated photovoltaic electrolytic cell A photovoltaic-electrolytic unit is provided to produce an electric current from solar energy and utilize the current to produce hydrogen by the electrolysis of water. The unit floats in an aqueous medium so that photoelectric cells are exposed to solar r...	10/05/1982
4333670	Stepped transition joint A transition joint is disclosed for joining together tubular pieces formed respectively from a low alloy or carbon steel and a high temperature alloy composition including approximately 20% chromium, the transition joint including a plurality of tubular p...	06/08/1982
4333671	Friction welded transition joint A transition joint is disclosed for joining together tubular pieces formed respectively from a low alloy or carbon steel and a high temperature alloy composition having substantially different characteristics such as coefficient of thermal expansion, the ...	06/08/1982
4330374	Recovery of anhydrous hydrogen iodide Relatively dry hydrogen iodide can be recovered from a mixture of HI, I2 and H2 O. After the composition of the mixture is adjusted so that the amounts of H2 O and I2 do not exceed certain maximum limits, subjec...	05/18/1982
4330864	Double layer field shaping systems for toroidal plasmas Methods and apparatus for plasma generation, confinement and control such as Tokamak plasma systems are described having a two layer field shaping coil system comprising an inner coil layer close to the plasma and an outer coil layer to minimize the curre...	05/18/1982
4330369	Thermally actuated linkage arrangement A reusable thermally actuated linkage arrangement includes a first link member having a longitudinal bore therein adapted to receive at least a portion of a second link member therein, the first and second members being sized to effect an interference fit...	05/18/1982
4318010	Apparatus for producing square shaped pulses from a generally sinusoidally shaped signal Apparatus is disclosed for generating electrical pulses in response to rotation of a shaft. The apparatus incorporates an internal optical disc carried by a hub assembly attached to the operating shaft, with the hub assembly having a beveled bearing surfa...	03/02/1982
4314982	Catalytic decomposition of H₂ SO₄ A two-stage process for the catalytic decomposition of H2 SO4 wherein H2 SO4 in vapor form is contacted in a first stage with a platinum group metal catalyst at temperatures between about 700° K. and 970° K. T...	02/09/1982
4305460	Heat transfer tube A spirally fluted metallic heat transfer tube is disclosed wherein the finished tube has improved heat transfer performance through the provision of a predetermined number range of multiple start continuous helical flutes formed along its longitudinal len...	12/15/1981
4303475	Nuclear reactor system with aligned feedwater and superheater penetrations A nuclear reactor system is described wherein a prestressed concrete reactor vessel is provided with a main cavity for the reactor core and at least one subsidiary cavity for a steam generator. At least two feedwater penetrations are provided in the react...	12/01/1981
4303474	Nuclear reactor core assembly A nuclear reactor core assembly is described in which a plurality of fuel elements and a plurality of blanket elements are arranged in a core assembly. Conduit means direct fluid coolant through the fuel elements and through the blanket elements. The cond...	12/01/1981
4302284	Helical field stabilization of plasma devices A toroidal plasma device has a toroidal confinement vessel defining a toroidal space and confining ionized gas therein. A solenoid which links the toroidal space induces a toroidal electric field therein to produce plasma current. A plurality of first win...	11/24/1981
4299660	Heat-extraction system for gas-cooled nuclear reactor The cavity within a pressure vessel for a gas-cooled nuclear reactor is divided into chambers by an intermediate support floor, with the reactor core thereabove and heat-exchangers therebelow. Separate heat-exchange units are connected to separate circula...	11/10/1981
4296713	Vapor generator A vapor generator is described wherein cross-over loops joining two different tube bundles are positioned in a stagnant area out of the flow of the heating fluid, thus reducing the tube metal temperatures in a highly stressed area. Tube anchor devices are...	10/27/1981
4295051	Optical card reader An improved optical card reader is disclosed which is adapted for use with processing means for providing on-the-fly decoding of multibit data words from a card that is inserted therein. The card reader has two sets of light emitting means and two sets of...	10/13/1981
4284134	Helically coiled tube heat exchanger In a heat exchanger such as a steam generator for a nuclear reactor, two or more bundles of helically coiled tubes are arranged in series with the tubes in each bundle integrally continuing through the tube bundles arranged in series therewith. Pitch valu...	08/18/1981
4277306	Coil-less divertors for toroidal plasma systems Methods and apparatus for plasma impurity control in toroidal plasma systems such as Tokamak plasma systems is disclosed which utilize an axisymmetrical plasma diffusion pump system....	07/07/1981
4274919	Systems for merging of toroidal plasmas Methods and apparatus for merging of tokamak plasmas, having applications including pseudo steady-state tokamak operation, refueling, impurity removal and plasma heating. In such systems, currents of two merging tokamak plasmas are provided in the same di...	06/23/1981
4269658	Mechanical compression plasma device Apparatus for producing a pinched plasma at high kinetic energy levels which includes an elongated containment means having a generally cylindrically shaped bore defining a reservoir, an electrically conductive liquid within the bore and means for rotatin...	05/26/1981
4267019	Nuclear fuel particles Coated nuclear fuel particles are made by first pyrolytically depositing low density carbon onto fuel cores and thereafter depositing a fission-product retentive, higher density exterior coating. In the improvement, cores of uranium, thorium or plutonium ...	05/12/1981
4264413	Method and apparatus for high beta doublets and multiplets Method and apparatus for initially producing a sharp boundaried theta-pinch plasma, and subsequently relaxing the current sheath of the plasma to provide a diffuse-pinch plasma, in which the diffuse pinch plasma has a doublet or higher multiplet magnetic ...	04/28/1981
4263097	Method and apparatus for driving a continuous current in a toroidal plasma Method and apparatus for continuously driving a current in a toroidal plasma through r-f induced, asymmetric trapping or detrapping. The method and apparatus may be used to supply ohmic current over a prolonged or indefinite time period and thus provide f...	04/21/1981
4258026	Hydrogen iodide decomposition Hydrogen iodide is efficiently decomposed to hydrogen and iodine by treatment in the liquid phase with a platinum group metal catalyst. At temperatures between about 0° C. and about 150° C. and pressures sufficiently high to maintain the liquid phase, a...	03/24/1981
4252605	Self-imploding liner system for magnetic field compression Methods and apparatus for compressing a lower strength magnetic field to produce high flux densities, such as about one megagauss, employing a hollow, rotating, electrically conductive liquid liner to trap the magnetic flux, and in which the rotating line...	02/24/1981
4243868	Orbital arc-welding apparatus of split construction Gas-shielded, arc welding apparatus for securing a tube to the sidewall of a pipe or the like and facilitating removal of the welding apparatus after completion of the weld includes a locating fixture adapted for clamping engagement with the pipe and for ...	01/06/1981
4242594	Switch arrangement A switch arrangement for interruption of an electrical current in a circuit with a large self-induction. One application of the switch arrangement is for systems where energy stored in an inductor is to be transferred to a load. In this case, the switch a...	12/30/1980
4241330	Multiple-processor digital communication system A digital communication system is disclosed for communicating among two central consoles and a plurality of local controllers, such as may be used in a radiation and monitoring system and the like. Communication occurs between each of the consoles and all...	12/23/1980
4231015	Multiple-processor digital communication system A digital communication system is disclosed for communicating among two central consoles and a plurality of local controllers, such as may be used in a radiation and monitoring system and the like. Communication occurs between each of the consoles and all...	10/28/1980
4230547	Method for separating krypton isotopes Methods and apparatus for separating krypton isotopes utilizing low temperature selective infrared excitation of 85 krypton difluoride in an isotopic compound mixture. Multiphoton IR excitation and UV excitation techniques are used, as well as ...	10/28/1980
4224983	Heat exchange apparatus for a reactor A heat exchange apparatus for transferring heat from a reactor gas coolant to a secondary fluid medium. The heat exchange apparatus comprises an elongated vertically extending hole in a concrete shield. Supported within the hole in spaced relation to the ...	09/30/1980
4221182	Fluidized bed gas coating apparatus Apparatus for suspending particles in a fluidized bed within a coating chamber where the particles are coated with a substance contained in a reactant gas introduced into the chamber by means of a centrally arranged nozzle extending upwardly from the coat...	09/09/1980
4217174	Manufacture of nuclear fuel compacts Nuclear fuel rods are manufactured utilizing a graphite flour-pitch matrix formulation containing an additive. The matrix formulation has a decreased viscosity at fabrication temperatures which permits manufacture of the fuel rods with lower fabrication p...	08/12/1980
4217171	Blanket design for imploding liner systems Blanket designs comprising hot, molten, rotating liquid vortex systems suitable for rapidly compressing confined plasmas, in which stratified immiscible liquid layers having successively greater mass densities outwardly of the axis of rotation are provide...	08/12/1980
4216529	Fluid dispensing control system A system for monitoring and controlling the operation of a plurality of fluid dispensers, such as gasoline pumps or the like in a self-service gasoline station is disclosed. The system includes an operating console that may be located in a station buildin...	08/05/1980
4208396	Oxygen recovery from gas mixtures Substantially pure O2 is recovered from a gaseous mixture containing O2 and another gas, such as SO2 or NH3. An O2 --SO2 mixture is injected into a substantially vertical reaction zone to w...	06/17/1980
4207723	Canning and inspection system for nuclear reactor fuel and reflector elements A system is disclosed for canning, inspecting and transferring to a storage area fuel and reflector elements from a nuclear reactor, which system includes a transfer chute, environmental chamber, conveyor and canning mechanism operative to remove and repl...	06/17/1980
4202849	Method for making nuclear fuel element A nuclear fuel element and a method for making the fuel element are described. The fuel element comprises a graphite block in which elongated holes are filled with nuclear fuel. The nuclear fuel in each of the holes comprises a plurality of fuel rod segme...	05/13/1980

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Assignee: General Atomic Company