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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 4789518 | Liquid-cooled nuclear reactor especially a boiling-water reactor Liquid-cooled nuclear reactor having a reactor pressure vessel and a reactor core of fuel assemblies received therein, the fuel assemblies being grouped into core cells each having a control rod containing absorber material and connected to a drive mechan... | 12/06/1988 |
| 4783030 | Apparatus for the mechanical decoupling of piping systems An apparatus for the mechanical decoupling of a piping system including a pipe line having at least one connecting pipe section with a connecting point and straight pipe line sections connected to and protruding in different directions from the connecting... | 11/08/1988 |
| 4770390 | Valve for shutting off a flow A valve for shutting off a flow having a housing wherein a plug member is movable between "on" and "off" terminal positions by means of a thread; a rotary drive which is switchable off with time delay in the "off" terminal position of the valve; a resilie... | 09/13/1988 |
| 4735768 | Fuel rod for a nuclear reactor fuel assembly Fuel rod cladding tube having an inner tubular layer of a zirconium alloy with alloying components of 1.2 to 1.7% tin, 0.07 to 0.2% iron, 0.05 to 0.15% chromium, 0.03 to 0.08% nickel, 0.07 to 0.15% oxygen, with the sum of percentages of iron, chromium and... | 04/05/1988 |
| 4723407 | Combined gas and steam turbine power generating station A combined gas and steam turbine power generating station includes: a gas turbine part having a gas turbine and a combustion chamber connected to the gas turbine; a coal gasifier being connected upstream of the gas turbine part and having a raw gas side; ... | 02/09/1988 |
| 4667500 | Flaring device for pipe ends A flaring device for pipe ends including an insert member centrally insertable into a pipe end, the insert member having mounted thereon synchronously operable pressure plungers arranged at the outer circumference thereof and bringable into engagement wit... | 05/26/1987 |
| 4666663 | Nuclear reactor fuel assembly A nuclear reactor fuel assembly having a grid-shaped spacer for retaining fuel rods, the spacer includes four flat, sheet metal outer straps disposed on edge at right angles to the fuel rods defining corners of the spacer, inner sheet metal straps dispose... | 05/19/1987 |
| 4636363 | Apparatus and method for conditioning radioactive wastes for ultimate storage Apparatus for the conditioning of radioactive wastes capable of ultimate storage, using a multicomponent binding agent, with a continuous-flow mixer, a filling station for the ultimate storage barrels, a receiver tank for liquid waste materials, a silo fo... | 01/13/1987 |
| 4599278 | Pairing of materials for highly stressed machine parts Material pairing for highly stresses machine parts with sliding friction between two surfaces, particularly for parallel-plate slide valves in a corrosive environment, wherein the one surface is formed by a hard cobalt alloy applied as hard-face welding, ... | 07/08/1986 |
| 4594160 | Magnetizable separator for the purification of liquids Magnetic separator for the purification of liquids with a tube which conducts the latter, contains balls or wire screens as magnetizable bodies and is surrounded by a coil for magnetizing the bodies. The tube contains, in the flow direction of the liquids... | 06/10/1986 |
| 4578229 | Method for the manufacture of oxidic sintered nuclear fuel bodies Method for the manufacture of oxidic nuclear fuel bodies by a heat treatment of blanks obtained from UO2 starting power or a mixture of UO2 and PuO2 starting powder at a treatment temperature in the range of 1000° C. to 1... | 03/25/1986 |
| 4541841 | Method for converting carbon-containing raw material into a combustible product gas Converting carbon-containing raw material, particularly coal, wood or crude oil, into a combustible product gas by a gasification reaction in the presence of a catalyst which is dissolved in the steam intended for the gasification reaction, forming a homo... | 09/17/1985 |
| 4503542 | High-energy laser of the TE-type High-energy laser of the TE-type with excitation taking place by an arc-free capacitor discharge being as homogeneous as possible, including a housing having walls formed at least partially of high voltage-resistant insulating material defining a laser ch... | 03/05/1985 |
| 4495147 | Heat-retarding closure system for pressure relief openings of partitions, in nuclear reactor buildings Heat retarding closure system for partitions having pressure relief openings formed therein especially in nuclear reactor buildings where main coolant nozzles of a reactor pressure vessel penetrate a biological shield, including lightweight construction c... | 01/22/1985 |
| 4401627 | Device for irradiating isotope mixtures isotope -selectively Apparatus for adiabatic expansion and selective irradiation of gaseous isotope mixture employing a device in which there is a concentric arrangement of nozzles and diffusers with irradiation of the gas in the annular gap between the two. The nozzles are i... | 08/30/1983 |
| 4355790 | Heat-treatment device for prolonging the life of a pressure vessel such as a reactor pressure vessel especially Heat-treating device for prolonging the life of a pressure vessel formed of thermally resistant material subject to time-dependent structural changes due to neutron fluence includes a heating device positionable within a pressure vessel adjacent to a wall... | 10/26/1982 |
| 4336103 | Method of repairing partly burnt-off fuel elements in the fuel-element pit pressurized water reactors and device therefor A method of repairing partly burnt-off fuel elements in a fuel-element pit of a pressurized-water reactor which includes placing a fuel element previously detected as being defective into a holding cage in substantially upright position with the aid of re... | 06/22/1982 |
| 4288997 | Cooling system for shipping casks Cooling system for containers for transporting heat-emitting parts from nuclear installations, including a closed loop connected to the container for carrying water and steam or water alone, the loop having disposed therein a heatable mixing condenser, a ... | 09/15/1981 |
| 4274962 | Apparatus for treating radioactive concentrates An apparatus is provided for treating various radioactive concentrates having a liquid component, such as suspensions and salt solutions, which are present separately in a processing plant from evaporation systems, resin bead ion exchange filters, and fro... | 06/23/1981 |
| 4207784 | Device for turning a nut means on a screw bolt An improved device for turning a nut means on a screw bolt arranged on a bolthole circle wherein the device includes: a support ring having recesses for receiving the bolt and the nut means; a turning unit fastened to the ring for imparting rotary motion ... | 06/17/1980 |
| 4194842 | Method for binding liquid-containing radioactive wastes and kneading machine therefor Liquid-containing radioactive wastes are bound into thermoplastic material by introducing particles of thermoplastic material at a non-sticking temperature into a kneading machine, heating the thermoplastic material in the absence of radioactive wastes to... | 03/25/1980 |
| 4157248 | Method for treating gaseous nuclides and gas system for ventilating tanks containing radioactive liquid Treating and venting gaseous nuclides in the gas space above the liquid level in tanks containing radioactive liquid is accomplished by connecting the gas spaces in series with the gas space at one end having the highest radioactivity, normally dischargin... | 06/05/1979 |
| 4137474 | Gas-cooled slip ring for electrical machines Gas-cooled slip ring for electrical machines mountable on a slip-ring shaft including a hub fastenable on the slip-ring shaft in insulating relationship thereto, and, a ring flange extending in axial direction from both sides of the hub, the slip ring bei... | 01/30/1979 |
| 4136644 | Tube heat exchanger with heating tubes A tube heat exchanger having a substantially cylindrical housing, a pair of adjacent cylindrical headers disposed in the housing, and a multiplicity of downwardly extending U-shaped heat exchanger tubes connecting the headers to one another, one of the he... | 01/30/1979 |
| 4131018 | Elbow or bent tube manipulator, especially for ultrasonic testing in nuclear reactor installation Manipulator assembly for testing the material of a pipe elbow from the inside thereof, the pipe elbow being secured to a pipe union extending from a pressure vessel openable for receiving therein a vertically extending manipulator mast having an arm carry... | 12/26/1978 |
| 4131509 | Pressure relief device for a nuclear reactor containment building A reactor building has equipment rooms wherein a nuclear reactor, steam generators and circulating pumps are disposed, and has operating rooms separated from the equipment rooms by ceilings and walls largely formed of concrete and provided with relief ope... | 12/26/1978 |
| 4127988 | Gas turbine installation with cooling by two separate cooling air flows Gas turbine installation includes a compressor and a gas turbine and has a rotor including rotary parts of the compressor and the gas turbine, the compressor having an air flow path therethrough external to the rotor. The gas turbine installation further ... | 12/05/1978 |
| 4125996 | Protective device for a waste-gas channel of a gas turbine in a combined gas turbine-steam power plant In a safety device for a waste-gas channel of a gas turbine in a combined gas turbine-steam power plant, the waste-gas channel having a waste-gas bypass line as well as a waste-gas branch line to a steam generator, includes a bypass flap disposed in the b... | 11/21/1978 |
| 4125434 | Nuclear reactor-fuel element A nuclear reactor-fuel element with cylindrical fuel rods and a fuel element skeleton formed of a head and foot member and cylindrical control rod-guide tubes connecting the members includes a plurality of mesh-forming spacing holder-grids for the fuel ro... | 11/14/1978 |
| 4125577 | Method of automatically filling nuclear fuel rod jacket tubes Method of automatically filling jacket tubes for fuel rods of nuclear reactors with nuclear fuel pellets in combination with subsequent closure of the jacket tubes by automated welding of end caps thereon, which includes introducing the nuclear fuel pelle... | 11/14/1978 |
| 4124443 | Nuclear fuel-rod assembly support structure A nuclear fuel rod assembly support structure has top and bottom end pieces, and a plurality of fuel rod spacer grids and control-rod guide tubes having top and bottom ends respectively fastened to the top and bottom end pieces to hold these pieces inters... | 11/07/1978 |
| 4123323 | Nuclear reactor plant A nuclear reactor plant has a fuel-element storage pit formed in a pit building and a pit adjacent thereto for safely lowering a fuel-element transporting cask therein, the adjacent pit being connected by a spur channel to the storage bit, a barrier separ... | 10/31/1978 |
| 4121972 | Nuclear reactor fuel rod A nuclear reactor fuel rod formed of a cladding tube, end caps hermetically sealing the tube at both ends thereof, the tube being divided transversely into two longitudinal zones one of which is for receiving a charge of nuclear fuel and the other of whic... | 10/24/1978 |
| 4118277 | Steel containment for nuclear reactor installations An assembly of a closed steel containment vessel and a concrete foundation, the containment vessel being partly seated on the concrete foundation and partly free-standing and having built-in structures therein and pipelines extending therethrough, include... | 10/03/1978 |
| 4118317 | Method of purifying ion exchanger resins spent in the operation of a nuclear reactor Method of freeing from radioactive corrosion products and from conditioning substances stemming from the coolant loop of a nuclear reactor, ion exchanger resins spent in the operation of the reactor includes thoroughly rinsing the resin with deionate so a... | 10/03/1978 |
| 4117733 | Test system carrier for ultrasonic testing of nozzle seams, pipe connection seams and nozzle corners in pressure vessels, particularly reactor pressure vessels of nuclear power plants Test system carrier for ultrasonic testing of pressure vessels, the carrier being supported at the end of a telescopic tube for executing stroke and rotary motions in or about the axis of a nozzle, the telescopic tube being adjustably mounted on the centr... | 10/03/1978 |
| 4115833 | Power capacitor Power capacitor with minimal self-inductance includes a stack of metal layers mutually superimposed perpendicularly to a given axis, with respective layers of insulation disposed between mutually adjacent metal layers of the stack, the metal layers and th... | 09/19/1978 |
| 4104119 | Emergency feed system for cooling nuclear reactor installations Emergency feed system for cooling nuclear reactor installations having a vessel for containing deionate which is fed to a steam generator through an emergency feed pump having a suction line connected to the vessel includes a circulating line extending at... | 08/01/1978 |
| 4097712 | Method of joining nuclear fuel rod end caps and nuclear fuel rod cladding tubes Method of joining fuel rod end caps and cladding tubes by resistance pressure welding within a welding chamber. A welding device is brought into engagement with an end portion of a rigidly mounted cladding tube. An opening chuck as well as a divided weldi... | 06/27/1978 |
| 4095959 | Coal gasification apparatus Coal gasification apparatus having a hydrogenation gasifier chamber for gasifying a portion of coal charge and a steam gasifier vessel for gasifying unconverted coal from the hydrogenation chamber with the chamber disposed above the vessel and a pressure ... | 06/20/1978 |
