| Patent Number |
Title Of Patent |
Date Issued |
| 5118628 |
Method for analyzing water and apparatus to carry out this method |
June 2, 1992 |
| A method for analyzing water or other liquid, in particular rain water, comprises the steps of providing a collector comprising at least first and second volumetric cells and a mechanism for causing water to flow selectively into the cells and for causing water to flow selectively from |
| 5009865 |
Bar and crucible magnetic suspension for a crystal-growing apparatus |
April 23, 1991 |
| A crystalline bar is drawn by a zone-melting process or from a melt in a crucible utilizing a magnetic suspension housing, in addition to an axial stabilization magnet, a radial stabilizer surrounding the core and including sensors for the radial position of the core-operating contro |
| 4961529 |
Method and components for bonding a silicon carbide molded part to another such part or to a met |
October 9, 1990 |
| A layer of titanium carbosilicide Ti.sub.3 SiC.sub.2 on a silicon carbide surface polished for making a joint makes it possible to join silicon carbide bodies together in a hot pressing procedure and obtaining a joint strength comparable to the strength of the silicon carbide material. S |
| 4950543 |
Process for making a structural element subjected to thermal stress with a protective coating |
August 21, 1990 |
| The process for making a structural element subjected to a high thermal stress and made of a material of high thermal conductivity such as molybdenum, tungsten, copper, aluminum or an alloy of these metals with a protective layer protecting the surface of the structural element compr |
| 4949039 |
Magnetic field sensor with ferromagnetic thin layers having magnetically antiparallel polarized |
August 14, 1990 |
| A magnetic field sensor comprises a stack of ferromagnetic layers advantageously separated by an intermediate layer of proper material and so arranged that the ferromagnetic layers are with one component in an antiparallel magnetization direction. The sensor is provided with terminal |
| 4937455 |
Position-sensitive director |
June 26, 1990 |
| A position-sensitive detector for electronically imaging objects emitting low-intensity light radiation, comprises a photocathode means for converting incident low-intensity light radiation into electrons; electron acceleration means disposed in series with the photocathode means for |
| 4887434 |
Apparatus for the cryogenic enrichment of trace substances of a gas stream |
December 19, 1989 |
| Samples of trace substances are cryogenically concentrated by passing a gas sample through a U-bend immersed in liquid nitrogen. The U-bend is surrounded by a chamber wall and the chamber is vented so that liquid nitrogen can rise into the chamber when the vent is open but is driven out |
| 4871915 |
Detector for bremsstrahlung-isochromatic-spectroscopy (BIS) |
October 3, 1989 |
| A detector for bremsstrahlung-isochromatic-spectroscopy (BIS) utilizing a gas-filled metal cylinder forming an outer electrode and a wire extending axially in the cylinder has an inner electrode. The window for the UV photons is constituted of MgF.sub.2 while the counting gas is a mixtur |
| 4851783 |
Method of and apparatus for digitally setting a control frequency |
July 25, 1989 |
| A method of and an apparatus for generating a control frequency in which two submultiples of a frequency standard are obtained which differ by unity in the respective frequency division and are mixed so that the contribution of a prior control frequency is reduced form period group to |
| 4839391 |
Method and reactor for catalytic methanization of a gas containing CO, CO.sub.2 and H.sub.2 |
June 13, 1989 |
| A single stage methanization reactor and process are made to yield a product gas of high methane content as well as useful superheated steam without overheating the catalyst bed in which a synthesis gas containing, CO, CO.sub.2 and H.sub.2 is converted into product gas. A variety of |
| 4767527 |
Apparatus for waste water purification |
August 30, 1988 |
| The invention provides a process and an apparatus for effecting that process in which waste water to be cleaned is finely divided into a current of entrainment gas and evaporated. The water vapor formed is superheated, so that the impurities occur as a solid residue and can be collec |
| 4762269 |
Method of joining molded silicon carbide parts |
August 9, 1988 |
| Silicon carbon molded parts, whether made of silicon carbide sintered together in the absence of pressure or hot pressed silicon carbide are bonded together at close fitting surfaces by applying a layer not thicker than 1 .mu.m on polished surfaces to be joined, containing at least one |
| 4756871 |
Method of storing spent nuclear fuel elements |
July 12, 1988 |
| For safety in storage and transport of nuclear fuel elements outside a nuclear reactor core, they are provided with a coating of a neutron-absorbing substance from a liquid phase, e.g. by immersion, spraying or pouring, utilizing a melt, a solution or immersion so that the possibilit |
| 4756869 |
Method of storing spent nuclear fuel elements |
July 12, 1988 |
| For safety in storage and transport of nuclear fuel elements outside a nuclear reactor core, they are provided with a coating of a neutron-absorbing substance from a liquid phase, e.g. by immersion, spraying or pouring, utilizing a melt, a solution or immersion so that the possibilit |
| 4735767 |
Method and device for reducing the activity of a gas-cooled stacked-ball nuclear reactor |
April 5, 1988 |
| A quenching element of the size and shape of a graphite nuclear fuel ball is introduced to the stacked balls of a stacked ball nuclear reactor core to release a neutron absorbing substance upon being heated to a predetermined temperature, thereby controlling the reactivity of the rea |
| 4722762 |
Method of making shaped bodies of silicon carbide or of graphite or graphite-like material with |
February 2, 1988 |
| A method of making shaped bodies of silicon carbide, of graphite coated with silicon carbide or of a graphite-like material with a silicon carbide surface wherein a graphitic body is assembled from preformed parts in the desired shape and is immersed, under a chemically inert atmosphere, |
| 4720453 |
Detecting environmental pollutants with protoplasts in alginate matrix |
January 19, 1988 |
| Plant protoplasts are suspended in a solution of sodium alginate which is thereafter thickened by the addition of a soluble calcium or lanthanum salt to produce a matrix with large pores permeable to water and gas in which the protoplasts are held. The resulting material, in tape or |
| 4714961 |
Process and circuit arrangement for the remote pick up and reproduction of images of static or m |
December 22, 1987 |
| A process and apparatus for the remote pickup and reproduction of image of static or dynamic objects in which dark regions of a target provide outputs below a threshold value which are normalized or averaged through a divider during intervals of line scan interruption brought about by th |
| 4713795 |
Optical switch, especially for information storage and retrieval |
December 15, 1987 |
| Nitroprusside single crystals having the formula M.sub.n [Fe(CN).sub.5 ]nH.sub.2 O, where M is a metal that forms a nitroprusside is found to have the property, when cooled to a temperature in the range between 160.degree. K. and 250.degree. K., of convertability into a long-duration |
| 4687644 |
Process and arrangement for the incremental enrichment of deuterium and/or tritium in a material |
August 18, 1987 |
| A process for the incremental enrichment of deuterium and/or tritium in a material which is suitable for the isotope exchange of deuterium and tritium with hydrogen, and an arrangement for the implementation of the process. The process and arrangement for the enrichment of deuterium |
| 4687600 |
Process for the separation of coated nuclear fuel particles from a graphitic matrix and installa |
August 18, 1987 |
| A treating process for the separation of coated nuclear fuel particles from a graphitic matrix in which the nuclear fuel particles are embedded, which is employed in an installation for the conditioning of graphitic fuel elements of high-temperature nuclear reactors. The graphite which |
| 4681732 |
Method of and device for the reduction of reactivity of a nuclear reactor core |
July 21, 1987 |
| A method of operating a gas-cooled nuclear reactor having graphite fuel elements in which, to reduce the reactor, a quenching element is introduced which takes a particle of a reaction-reducing substance in a sheath which will melt or release the substance in vapor form so that the s |
| 4668261 |
Apparatus for the separation of a gas component from a gas mixture by freezeout |
May 26, 1987 |
| A cold trap for the removal of a component from a gas mixture includes a cooling coil, made up of cooling sections of highly thermally conductive material and intermediate sections of low thermal conductivity, and a heating coil arranged for controlling the inlet temperature to equal the |
| 4643832 |
Process for waste water purification |
February 17, 1987 |
| The invention provides a process and an apparatus for effecting that process in which waste water to be cleaned is finely divided into a current of entrainment gas and evaporated. The water vapor formed is superheated, so that the impurities occur as a solid residue and can be collec |
| 4630637 |
Gas flow regulator for gases with condensable components |
December 23, 1986 |
| A gas flow regulator for gases with condensable components, which delivers ases at constant pressure with constant average composition comprising a gas flow control mechanism, preferably including a spring-loaded membrane bounding a receiving chamber, which is subjected to the pressure of |
| 4627744 |
Temperature sensor utilizing thermal noise and thermal couple elements, and associated connectin |
December 9, 1986 |
| A temperature sensor utilizes a resistive element and a thermocouple. One or more leads of the thermocouple are surrounded (electrically insulated) by a conductor or conductors constituting the connections to the resistive element. The conductors are made of a nonmagnetic material. In on |
| 4621665 |
Method of and apparatus for simultaneously filling the cup-shaped cavities of a microbeaker plat |
November 11, 1986 |
| An apparatus for simultaneously filling a set of microcups includes a corresponding number of storage vessels having capillary outlets projecting into the microcups. The distance between the outlets and the bottom of the microcups is adjustable so that the filling quantity of the mic |
| 4604249 |
Method of producing composite armor plate bodies |
August 5, 1986 |
| A molded porous silicon carbide body in the shape of an armor plate, made by coking a mixture of carbon and silicon powder coated with an organic binder to which some silicon carbide powder may be added, and then rapidly raising the temperature to a level at which silicon carbide is form |
| 4596237 |
Solar-energy converter |
June 24, 1986 |
| A solar energy converter which can be used as a solar collector or for the direct mounting on a building for the heating of the interior thereof through a wall of the building has a light transmissive layer spaced from this wall and provided on its inner side with an absorptive surface a |
| 4593241 |
Hall generator circuit with temperature compensation |
June 3, 1986 |
| A temperature compensating circuit for a Hall generator with a positive temperature coefficient of the resistance of the drive circuit path utilizes summation of a voltage representing the drive current as detected across a substantially temperature-independent compensating resistance in |
| 4584065 |
Activated electrodes |
April 22, 1986 |
| A process for the manufacture of thin activated electrodes including a base metal, which can be iron, cobalt or nickel, with a good adhering active surface layer. Both the base metal and the surface layer are galvanically sequentially deposited as separate layers on a removable elect |
| 4576677 |
Method and apparatus for regenerating an ammoniacal etching solution |
March 18, 1986 |
| Ammoniacal etching solution containing metal ions as the result of etching is withdrawn from an etching bath and while part of it goes to an electrolysis cell for removal of metal ion, the remainder goes back to the etching bath through a liquid jet pump in which it serves as the working |
| 4564496 |
Method of making porous silicon carbide bodies |
January 14, 1986 |
| Porous silicon carbide bodies are obtained by starting with a powder of particle size falling within a single sieve mesh range fraction and consisting either entirely of carbon particles or a mixture of carbon and silicon carbide particles of the same mesh fraction is mixed or coated |
| 4562354 |
Apparatus for measuring beta-gamma radiation exposure |
December 31, 1985 |
| An ionization chamber of reduced size, with an end window of a diameter preferably smaller than 3 cm is mounted on the end of a hand probe containing an amplifier, the output of which goes through a cable to an indicating device. One of a set of aperture diaphragms may be slipped over |
| 4561363 |
Method and chamber for combustion of effluent gases from the pyrolysis of combustible material |
December 31, 1985 |
| Combustible gases produced by pyrolysis of combustible material undergo partial combustion in a combustion chamber to which air is admitted in substoichiometric quantity ratio, at a temperature of about 800.degree. C. A gas duct leading out of the combustion chamber and passing partly or |
| 4544374 |
Apparatus for burning organic materials |
October 1, 1985 |
| Separation of the apparatus for drying and degassing organic waste from the shaft furnace containing a gasification chamber and a combustion chamber increases the through-put capability of the shaft furnace gasification. The gasification is promoted by the addition, in the same direction |
| 4533539 |
Process and arrangement for the incremental enrichment of deuterium and/or tritium in a material |
August 6, 1985 |
| A process for the incremental enrichment of deuterium and/or tritium in a material which is suitable for the isotope exchange of deuterium and tritium with hydrogen, and an arrangement for the implementation of the process. The process and arrangement for the enrichment of deuterium |
| 4531908 |
Ceramic burner head |
July 30, 1985 |
| A ceramic burner head in which the burner mouth is formed from a unitary porous ceramic body with parallel slits defining fuel-permeable walls between and which is bonded to upper, lower and lateral ceramic plates forming the burner body. The ceramic piece is bonded to the plates in a |
| 4526649 |
Method of molding bonded parts with silicon carbide surfaces |
July 2, 1985 |
| For joining molded parts having silicon carbide surfaces, the surfaces are first roughened to a depth of about 100-500 .mu.m by removal of the free silicon either by vaporization or by etching when treating silicon containing silicon carbide layers containing at least 15% weight of e |
| 4506157 |
Thermoluminescence dosimeter taking account of tissue depth of dose |
March 19, 1985 |
| Three dosimeter disks of a thickness increasing towards the base piece which is to lie against the skin are used, with a covering of .beta. ray window for thermoluminescence dosimetry. In order to provide dosimetry referred to a 70 um depth of living tissue, corresponding to a weight of |
| 4505875 |
Coolant standpipe system for protection of a nuclear reactors safety vessel against breakdown fr |
March 19, 1985 |
| A standpipe runs up from a liquid storage vessel located between the safety vessel of a nuclear reactor and the safety enclosure around it and connected by a pressure equalization line to the interior space of the safety vessel. Undesired pressure increases in the interior of the safety |
| 4502642 |
Process for the separation of coated nuclear fuel particles from a graphitic matrix and installa |
March 5, 1985 |
| A treating process is provided for the separation of coated nuclear fuel particles from a graphitic matrix in which the nuclear fuel particles are embedded, and an installation provides for the conditioning of graphitic fuel elements of high-temperature nuclear reactors. The graphite whi |
| 4493434 |
Valve system for pressurized vessels |
January 15, 1985 |
| A valve for a pressure bottle or vessel adapted to contain a dangerous fluid, such as a radioactive gas, can comprise two valve members in tandem which require actuation by separate operating members thereby eliminating the possibility for accidental or inadvertent opening. The main valv |
| 4479026 |
Measuring resistor for a noise thermometer |
October 23, 1984 |
| A noise thermometer of the type in which a resistive sensing element is exposed to elevated temperatures and has a measuring circuit connected thereto so that the noise voltage output of the sensing element is detected. According to the invention this element is a rectangular paralle |
| 4457064 |
Apparatus for grinding off the outer shell of a spherical body |
July 3, 1984 |
| Spent nuclear fuel elements of spherical shape are stripped of their outer graphite shell surrounding the graphite matrix in which fuel particles are embedded by being admitted one by one to a work space between a rotary milling disk and an axially shiftable, but non-rotary, reaction dis |
| 4440113 |
Connecting system for ceramic components of a burner and/or heating device |
April 3, 1984 |
| Ceramic components of a burner-heat exchanger or like types, in which two fluids are passed in indirect heat exchange along opposite sides of ceramic walls through respective passages in a ceramic body defining these walls and passages, are interconnected by extending the outer plates |
| 4432872 |
Apparatus for oxidation or reduction process in water solution with electrochemically active cat |
February 21, 1984 |
| A plate or hollow cylinder of coarsely porous graphite is coated with a layer of finely porous activated carbon that has previously been heat-treated. The fine layer is impregnated with a catalyst either before or after application to the graphite body. A gas is caused to flow through |
| 4431751 |
Method and apparatus for producing superheated steam with the heat of catalytic methanization of |
February 14, 1984 |
| Only a part of the synthesis gas supply is passed through a first internally cooled catalytic reactor (1) and the hotter gas coming out of it is reunited with the remaining gas supply for passing through an adiabatic reactor (2) that is followed by a heat exchanger (3) on its way to |
| 4431488 |
Heat absorber structure, particularly a plasma beam absorber and method of manufacturing the str |
February 14, 1984 |
| A heat absorber structure comprises a first wall of a good heat conducting material which has a surface with a plurality of spaced apart web portions with coolant channels defined between the web portions and a second wall of a good conducting material overlying the first wall and secure |
| 4429830 |
Space and utility water heating system |
February 7, 1984 |
| A heating system for supplying utility water and a heating fluid for space heating purposes comprises a unit fired by a burner and having a recuperator traversed by the combustion gases and forming a first zone for heating the space-heating fluid and a second zone for heating the utility |
