| Patent Number |
Title Of Patent |
Date Issued |
| 4887275 |
High-energy laser system |
December 12, 1989 |
| A high-energy TE laser system, includes an excitation circuit, a laser head having an optical axis, a laser chamber with a gas space formed therein, at least two laser electrodes being disposed opposite each other and spaced apart in the laser chamber parallel to the optical axis of the |
| 4844857 |
Pressurized water reactors |
July 4, 1989 |
| Pressurized water reactor with a primary circuit including therein a reactor pressure vessel, a steam generator and a main coolant pump, and with an auxiliary system having high pressure pumps for feeding water into the primary circuit, including a line extending from an upper side of th |
| 4816193 |
Method for the manufacture of oxide sintered nuclear fuel bodies |
March 28, 1989 |
| Method for manufacturing sintered oxidic nuclear fuel bodies by molding uranium oxide starting powder, a mixture of uranium oxide and plutonium oxide starting powder or of uranium-plutonium oxide mixed-crystal starting powder to form blanks and by a heat treatment of these blanks with a |
| 4795341 |
Method and tunnel furnace for sintering blanks |
January 3, 1989 |
| Method for sintering blanks into fuel pellets, in which the blanks are moved through the muffle of a tunnel furnace by pushing the blanks through the muffle on a guiding device which goes through the muffle and protrudes therefrom at least on the input side, in the form of a single-layer |
| 4793779 |
Rotating piston compressor having an axially adjustable rotary sleeve valve |
December 27, 1988 |
| A rotating piston compressor includes a cylinder having inlet and outlet openings formed therein, a piston rotating in a given direction in the cylinder, a shaft supporting the piston and rotating in the given direction, a casing connected to the cylinder and having slits formed ther |
| 4790976 |
Device for installing dry PDD lances and for flushing out lance-housing tubes in boiling water r |
December 13, 1988 |
| Device for flushing out a lance-housing tube in a reactor pressure vessel of a boiling-water reactor and for aligning therein a dry LVD lance which partly protrudes with a pressure-tight lance passthrough from an end flange on the lance-housing tube of the reactor pressure vessel, includ |
| 4789518 |
Liquid-cooled nuclear reactor especially a boiling-water reactor |
December 6, 1988 |
| 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 mechanism, including a sheetmetal s |
| 4788499 |
Method and eddy current test probe for the inspection of screws for nuclear reactor pressure ves |
November 29, 1988 |
| A method for the inspection of screws with an eddy current test probe including an insulating material body having a linear contact surface and at least one coil disposed in the body, includes orienting the coil transverse to threads of a reactor pressure vessel setscrew to be inspec |
| 4783030 |
Apparatus for the mechanical decoupling of piping systems |
November 8, 1988 |
| 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 point, includes first holders in |
| 4781885 |
Nuclear reactor fuel assembly |
November 1, 1988 |
| A nuclear reactor fuel assembly includes an elongated fuel channel with a square cross section and channel walls, the fuel channel having an imaginary lattice disposed therein with a box-shaped cross section having mesh openings and sides parallel to the channel walls, fuel rods cont |
| 4780273 |
Nuclear reactor fuel assembly |
October 25, 1988 |
| A nuclear reactor fuel assembly for accommodating mutually parallel rods disposed side by side therein includes a spacer formed of two mutually parallel grid sections, each of the grid sections including outer straps flatly facing the rods, each of the grid sections including main sleeve |
| 4779051 |
Coupling unit for the operative monitoring of the high-voltage wingings and the connected output |
October 18, 1988 |
| Coupling unit for the operational monitoring of the high-voltage winding (SW) and the connected electric output lines in electric high-voltage machines and apparatus, particularly of three-phase stator windings in turbo-generators including their generator output lines (5.1, 5.2, 5.3) |
| 4778277 |
Mixing device |
October 18, 1988 |
| Mixing device for embedding biologically harmful wastes in a solidifying binder, includes a tubular housing, an assembly of a pre-mixer, a pass-through mixer and a discharge pump having rotatingly movable parts disposed along a common rotational axis and in substantially vertical dir |
| 4775005 |
Method and device for the protection of steam generators, especially nuclear reactor steam gener |
October 4, 1988 |
| A method for the corrosion protection of steam generators having a housing containing feed water and enclosing a tube bundle with tubes conducting a heat carrier includes continuously determining the redox potential of the feed water during operation of the steam generator, continuously |
| 4774051 |
Sintered nuclear fuel compact and method for its production |
September 27, 1988 |
| A sintered nuclear fuel compact of UO.sub.2 or the mixed oxides (U, Pu)O.sub.2 and (U, Th)O.sub.2, with which reactivity losses in a nuclear reactor having relatively long fuel element cycles are avoided, has in its sintered matrix neutron poison in the chemical compound form UB.sub.x wi |
| 4770390 |
Valve for shutting off a flow |
September 13, 1988 |
| 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 resilient member for limiting an increas |
| 4769207 |
Disassembleable and reassembleable sealing device for pipelines, especially for reactor coolant |
September 6, 1988 |
| A disassembleable and reassembleable sealing device for pipelines, includes a cylindrical sealing insert being insertable into a pipeline in a given direction, the sealing insert having a front cup part with a closed cross section and a rear ring part, as seen in the given insertion dire |
| 4766851 |
Combustion chamber for a fluidized-bed furnace |
August 30, 1988 |
| A combustion chamber with a fluidized bed furnace having a nozzle plate, a fuel feed above the nozzle plate, a primary air feed below the nozzle plate, an exhaust gas channel at an upper end of the combustion chamber, and heat-exchanging heating surfaces includes a cylindrical combustion |
| 4765945 |
Method and apparatus for measuring the filling level in a reactor pressure vessel of a boiling-w |
August 23, 1988 |
| A method for measuring the filling level of a liquid in a pressure vessel of a boiling-water reactor, includes measuring the pressure difference between a lower subspace and a reference column, determining steam density in an upper subspace from the measured pressure, determining liquid |
| 4764882 |
Method of monitoring fatigue of structural component parts, for example, in nuclear power plants |
August 16, 1988 |
| A method of monitoring fatigue of a stressed component part such as in nuclear power plants or aircraft, with sensors attached to the outside of the component part to be monitored, includes feeding values measured by the sensors at the component parts to be monitored at a given timing cy |
| 4763093 |
High-power pulse transformer for short high-voltage and/or high-current pulses |
August 9, 1988 |
| A high-power pulse transformer for short, high-voltage and/or high-current pulses includes:a base plate in a container, an insulating, cooling dielectric liquid with a given heat transfer coefficient in the container;at least one magnet core on the base plate with self-enclosed magnet legs |
| 4760585 |
Method and furnace for removing toxic, especially radioactive wastes |
July 26, 1988 |
| Radioactive wastes are treated in a furnace which has electrodes for electric heating. The furnace has at the lower end an outlet for slag material as well as a gas discharge line. Its well is a self-supporting tubular body which is arranged detachably in a metal furnace housing. At |
| 4759221 |
Apparatus for the determination of surface cracks |
July 26, 1988 |
| An apparatus for determining the depth of cracks in the surfaces of workpieces includes an ultrasonic transducer for sending ultrasonic signals to and receiving ultrasonic signals from the workpiece, an analyzer connected to the ultrasonic transducer for forming a frequency spectrum |
| 4756768 |
Method for the chemical decontamination of metallic parts of a nuclear reactor |
July 12, 1988 |
| Chemical decontamination of metallic parts of nuclear reactor installation in which an oxidative treatment with a permanganic acid solution is applied before dicarbonic acids are used for further treatment. Rinsing operations are eliminated and smaller amounts of dicarbonic acids needed. |
| 4749520 |
Method for producing casks capable of ultimate storage with radioactive waste, and cask produced |
June 7, 1988 |
| Method for producing casks capable of ultimate storage of radioactive wastes by filling the wastes to which cement has been added into containers taking radiation shielding into consideration. The casks are filled in at least two stages with partial quantities located concentrically |
| 4749029 |
Heat sheild assembly, especially for structural parts of gas turbine systems |
June 7, 1988 |
| A heat shield assembly includes a supporting structure having an outer surface to be shielded from a hot fluid, the supporting structure having cooling fluid ducts formed therein; and an internal lining formed of heat-resistant material, the internal lining including mutually adjacent |
| 4745795 |
Apparatus for measuring gases dissolved in water |
May 24, 1988 |
| Apparatus for measuring gases dissolved in water using a gas exchanger to which the water to be tested can be supplied via a water feed line and a carrier gas can be supplied via a gas feed line, and wherein in addition to a water drainage line for degassed water, a gas drainage line for |
| 4744726 |
Turboset with at least one low-pressure turbine stage having an outer housing and an inner housi |
May 17, 1988 |
| Turboset includes a horizontal, heat-movable lug mounting of an inner housing of the respective low-pressure turbine stage on lug arms structurally combined with a vacuumtight leadthrough of coupling rods via which the thrust transmission is disposable in vicinity of the thrust trans |
| 4743182 |
Rotating piston compressor with thin-walled radially-resilient piston |
May 10, 1988 |
| A rotating piston compressor includes a cylinder having a first given diameter, a thin-walled, radially-resilient piston with a circular cross section and a second given diameter being disposed in the piston, a radial support for the piston in the form of a rotation-symmetrical thin-wall |
| 4741630 |
Device for the leakage-free removal of bearing oil from sliding bearings for rotation shafts of |
May 3, 1988 |
| An assembly for the leakage-free removal of bearing oil from sliding bearings for rotating shafts of high-speed machines, includes a sliding bearing axially divided into bearing cups, contactless shaft seals near bearing end surface preventing escape to the surroundings of bearing oil |
| 4738561 |
Device for protecting wheel discs shrink-fitted on shafts against rotation relative to the shaft |
April 19, 1988 |
| A wheel disc and shaft assembly for protecting wheel discs shrink-fitted on shafts against rotation relative to the shafts includes a shaft with an outer peripheral surface at a section thereof, a wheel disc having a hub with lateral surfaces and with an inner peripheral surface with a g |
| 4738140 |
Apparatus for performing pressure, normal force and bending measurements on pipelines |
April 19, 1988 |
| An apparatus for measuring pressure, normal force and flexure in a cylindrical body includes first wire strain gauges disposed along a pipe in axial direction, second wire strain gauges disposed along the pipe in tangential direction, and an evaluating unit having inputs connected to |
| 4735769 |
Nuclear reactor fuel assembly |
April 5, 1988 |
| A nuclear reactor fuel assembly for accommodating mutually parallel rods disposed side by side therein includes a spacer formed of two mutually parallel grid sections having sides, each of the grid sections including outer straps flatly facing the rods at which the grid sections are |
| 4735768 |
Fuel rod for a nuclear reactor fuel assembly |
April 5, 1988 |
| 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 nickel in the range of 0.18 to 0 |
| 4732533 |
Mounting arrangement for turbomachines, especially steam turbines |
March 22, 1988 |
| Mounting arrangement for turbomachines, especially steam turbines having a plurality of coaxially juxtaposed turbine states with shafts rigidly coupled to one another to form a shaft line, includes respective step-shaped projections formed on support lugs of turbine stage housings an |
| 4729724 |
Blower for propelling a continuous gas stream with inflatable gas seals |
March 8, 1988 |
| An apparatus for propelling a continuous gas mixture stream of an inert carrier gas and an aggressive doping gas, includes an electric motor having a motor housing filled with pure carrier gas and a shaft with a shaft extension, a radial blower having an impeller mounted directly on |
| 4728491 |
Cladding tube of a zirconium alloy especially for a nuclear reactor fuel rod and method for fabr |
March 1, 1988 |
| Cladding tube of a zirconium alloy especially for a nuclear reactor fuel rod, characterized by the feature that the geometric mean of the grain diameters in the zirconium alloy is smaller than or equal to 3 .mu.m. |
| 4723407 |
Combined gas and steam turbine power generating station |
February 9, 1988 |
| 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; a heat exchanger system being |
| 4723358 |
Apparatus for inserting rods containing nuclear fuel or neutron absorber material in a predeterm |
February 9, 1988 |
| An apparatus for inserting rods of a rod bundle from a nuclear reactor fuel assembly into a vessel includes a dense-setting device including: a holding cage for laterally holding the rods together in a given dense packing with mutually parallel longitudinal axes, the cage having a bottom |
| 4722001 |
Self-propelled inspection vehicle |
January 26, 1988 |
| A self-propelled inspection vehicle for piping systems includes a vehicle body in the form of a rigid, tightly-sealed housing having forward and rearward end faces as seen in a given insertion direction of the vehicle into the piping, a power supply disposed in the housing, a propulsion |
| 4720306 |
Cleaning method |
January 19, 1988 |
| Method for cleaning vessels and in particular, steam generators, having deposits which are dissolved chemically and removed mechanically. The copper compounds present in the deposits are dissolved chemically and subsequently, loose deposits and liquids are removed mechanically. Encru |
| 4708641 |
Waste removal system for problematic materials |
November 24, 1987 |
| Waste conversion system with a low-temperature carbonizing chamber heated by flue gases and with a gas purification plant, in which, for removing problematic substances, the low-temperature carbonizing chamber is heated by flue gases of a high-temperature melting chamber which is supplie |
| 4706742 |
Raw gas/purified gas heat exchanger |
November 17, 1987 |
| Raw gas/purified gas heat exchanger, particularly for dust-laden raw gas, features heat exchanger tubes through which purified gas flows and are arranged in a substantially vertical channel which is open at the bottom and is acted upon by raw gas from above. The tubes are arranged in |
| 4705663 |
Nuclear reactor fuel element |
November 10, 1987 |
| In a nuclear reactor fuel element for receiving mutually parallel rods, the improvement includes a rectangular grid-shaped spacer including planar webs crossing and facing the rods defining grid mesh openings receiving the rods, the webs including two outer webs forming an outer corner o |
| 4701124 |
Combustion chamber apparatus for combustion installations, especially for combustion chambers of |
October 20, 1987 |
| In a combustion chamber having a flame tube therein at an annular gap from a housing of the chamber, a burner apparatus including at least one pilot burner near an end face of the flame tube for generating a pilot flame from natural gas and/or heating oil, an air supply channel surroundi |
| 4700354 |
High-energy TE laser system |
October 13, 1987 |
| A high-energy TE laser system, includes an excitation circuit having supply lines, a laser head having an optical axis, a laser chamber with a gas space formed therein, at least two laser electrodes being disposed opposite each other and spaced apart in the laser chamber parallel to the |
| 4698474 |
Welding tongs for connecting two abutting pipe ends by arc welding |
October 6, 1987 |
| Welding tongs for connecting two abutting pipe ends to each other by arc welding, includes two rigid jaws, a clamping device in the form of two symmetrical clamping jaws guided in the rigid jaws in radial direction of the surface of a pipe, the clamping jaws having contact surfaces adapt |
| 4697415 |
Combined gas and steam-turbine power generating station |
October 6, 1987 |
| A combined gas and steam-turbine power generating station having a gas-turbine unit and a steam turbine unit, the gas-turbine unit having a gas turbine with a combustion chamber, a coal gasifier preceding the gas turbine unit, a heat exchanger plant including a raw gas/pure gas heat |
| 4697322 |
Method and device for repairing fuel assemblies of boiling-water nuclear reactors |
October 6, 1987 |
| A method of repairing under water a boiling water reactor-fuel assembly having a fuel assembly channel and an upper grid plate by means of a channel stripping machine, disassembling the upper grid plate, determining a damaged fuel rod and exchanging the damaged fuel rod for another fuel |
| 4695228 |
Turbo-machine blade |
September 22, 1987 |
| Turbo-machine blade with a profile contour having a convex leading edge region, a convex suction side region, a convex trailing edge region and a concavely curved pressure side region, including profile segments being blended into each other forming the profile contour and following each |
