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| Number | Title | Issue Date |
| 5345473 | Apparatus for providing two-way communication in underground facilities The invention relates to an apparatus which is desiged for underground use in order to facilitate a two-way communication. The apparatus is operated within the frequency band 0.1-2 MHz, in order to make the electromagnetic waves propagate advantageously b... | 09/06/1994 |
| 5244097 | Apparatus for feeding air into a flotation cell The invention relates to an apparatus for feeding air into a flotation cell provided with a rotor and a stator. According to the present invention, air is fed into the intermediate space formed in between the rotor and stator covers, to above the rotor, w... | 09/14/1993 |
| 5240327 | Method for creating double loop flow The invention relates to a method for mixing liquids into each other or different phases into liquid by employing a double loop circulation, created below the surface zone of a reactor, in order to maintain an intensive mixing. It is characteristic of thi... | 08/31/1993 |
| 5212994 | Measuring cell The invention relates to a measuring cell for analyzing solid granular or pulverous material, which measuring cell (1) is provided with an aperture (5) in the wall for a measuring window (6). Through the measuring window, the material fed in the measuring... | 05/25/1993 |
| 5178842 | Method for precipitating and separating metals According to the method of the invention, at least one or several of the metals nickel, cobalt and copper can be selectively precipitated as sulphide by aid of elemental sulphur from aqueous solutions containing other metals such as zinc. The temperature ... | 01/12/1993 |
| 5176810 | Method for producing metal powders The invention relates to a method for producing metal powders from reactive metals, when the employed raw materials are metal ions in a liquid phase. According to the invention, the metal ions are first reduced into metal in a molten salt electrolysis. Th... | 01/05/1993 |
| 5151006 | Automatic charging member The invention relates to an automatic charging member for positioning of heavy loads, particularly sheet-like objects as anodes and cathodes into electrolysis tanks. According to the invention, between the loading member (1) and the gripping device (8) th... | 09/29/1992 |
| 5143600 | Apparatus for feeding air into a flotation cell The invention relates to an apparatus for feeding air into a flotation cell provided with a rotor and a stator. According to the method and apparatus of the present invention, air is fed into the intermediate space formed in between the rotor and stator c... | 09/01/1992 |
| 5141753 | Method for utilizing the copper-arsenic precipitate created in the electroytic refining of copper in the production of anti-rot agents for wood The invention relates to a method for producing wood anti-rot agent of the copper-arsenic precipitate created in the solution purification of copper electrolysis, or of some other corresponding precipitate.... | 08/25/1992 |
| 5137337 | Method for working steeply dipping vein ores with vertically downwards propagating pillars The invention relates to a cut-and fill method of a mine, where the working is done by pillar working, which propagates vertically downwards. The working is done by placing the stope and the pillars interlaced with each other when propagating downwards. T... | 08/11/1992 |
| 5135567 | Method for producing metal powders from liquid phase containing metal ions The invention relates to a method for producing metal powders, where the employed raw materials are metal ions in a liquid phase. According to the invention, at a preliminary stage of the method the liquid phase containing metal ions is reduced with hydro... | 08/04/1992 |
| 5133801 | Method and apparatus for feeding reacting substances into a smelting furnace The invention relates to a method and apparatus for feeding reaction substances, i.e. pulverous solid material and reaction gas, into a smelting furnace, particularly into the top part of the reaction space (1) of a smelting furnace. The reaction gas is f... | 07/28/1992 |
| 5130090 | Copper alloys to be used as brazing filler metals The invention relates to low-nickel copper alloys to be used as brazing filler metals, which alloys also contain phosphor, tin and possibly small amounts of manganese. The alloys are produced by means of rapid solidification. Their advantages are low liqu... | 07/14/1992 |
| 5121105 | Metal detector The invention relates to a metal detector for detecting metal objects in the material passing through the apparatus by means of a magnetic field induced by eddy currents. According to the invention, in the area between the transmitter coil system (1, 6) a... | 06/09/1992 |
| 5119660 | Method for manufacturing metal objects The invention relates to a method for manufacturing metal objects, particularly non-ferrous metal objects, by means of extrusion. According to the invention a casting with a cast structure is conducted at or about ambient temperature to the extrusion devi... | 06/09/1992 |
| 5120353 | Hydrometallurgic method for processing raw materials containing zinc sulphide The invention relates to a method for recovering various valuable materials in connection with the hydrometallurgical production of zinc. The method is particularly suited for feeding different types of raw materials into the various stages of a process c... | 06/09/1992 |
| 5108495 | Method controlling a process by impedance analysis The invention relates to a method for controlling a process operating by means of the electrochemical potential, in which process complex ores and/or concentrates are treated in order to arrange the valuable components in the materials in a form appropria... | 04/28/1992 |
| 5107527 | Method and apparatus for analyzing sludgy materials Analyzing sludgy materials by exposing the flowing material in continuous action to x-ray radiation and by measuring the radiation thus created in the said material, according to the invention, the radiation emitted from the material is measured with resp... | 04/21/1992 |
| 5102452 | Method for the treatment and production of free-flowing WC-Ni-Co powders The invention relates to a method for the treatment and production of material, particularly for the treatment and production of free flowing, finely divided metal powder or metal matrix composite powder. The material is composed of tungsten carbide and a... | 04/07/1992 |
| 5090046 | Analyzer detector window and a method for manufacturing the same The invention relates to a detector window for an analyzer, particularly an X-ray analyzer, and to a method for manufacturing the same. The detector window is permeable to soft X-rays when the window is at least on one surface in contact with a pressure e... | 02/18/1992 |
| 5078505 | Apparatus for creating a double loop flow The invention relates to a method for mixing liquids into each other or different phases into liquid by employing a double loop circulation, created below the surface zone of a reactor. In order to maintain an intensive mixing, it is characteristic of thi... | 01/07/1992 |
| 5064204 | Analyzer sealing member A sealing member used in a portable or on-line analyzer, to achieve a tight seal between a sample and the analyzer in order to perform the analysis in a desired gas atmosphere. The sealing member is a semi-labyrinth sealing member manufactured of metal, e... | 11/12/1991 |
| 5048325 | Measuring cell The invention relates to a measuring cell (1) designed for measuring the contents of the components present in slurries which are in a flowing motion, the measuring cell comprising an inlet pipe (2) and an outlet pipe (9) for the slurry and a measuring wi... | 09/17/1991 |
| 5047718 | Improving the discrimination of an impulse technique metal detector by correlating responses inside and outside of a cut-off peak area The invention relates to a method for detecting metal objects, particularly to improving discrimination in a metal detector, where at least two responses are defined for metal objects passing through the metal detector. According to the invention, the cor... | 09/10/1991 |
| 5039400 | Flotation machine The invention relates to a flotation machine for flotating minerals and the like from slurries containing these particles. In the flotation machine of the invention, above the feed opening (15) of the flotation cell there is formed a froth bed (11) which ... | 08/13/1991 |
| 5034131 | Method for treating waste material The invention relates to a method and apparatus for treating waste material mass in a reactor comprising gas distribution members (2, 22), heating members (4, 23) and mixing members (6, 25) for the waste material mass, as well as a waste mass feed member ... | 07/23/1991 |
| 5032358 | Resistance welding electrode of chalcogene bearing copper alloy The invention relates to a material for electrodes to be used in resistance welding. The working life of electrodes, particularly of those to be used in the spot welding of coated sheets, is now relatively short. The invention introduces a new electrode m... | 07/16/1991 |
| 5009870 | Method for removing sulphur and nitrogen compounds from gas The invention relates to a method for removing sulphur and nitrogen compounds from gases by means of long-chained sulphur compounds mainly in acidic conditions, with an electroconductive solid material serving as the carrier of the long-chained sulphur co... | 04/23/1991 |
| 4995051 | Smelting furnace and method for feeding material to be processed therein The invention relates to a smelting furnace, particularly a D.C. arc furnace, suited for the treatment of finely-divided material, which comprises at least three electrodes suspended through the roof in order to create the electric arc. The process materi... | 02/19/1991 |
| 4973245 | Method for cooling a kiln furnace The invention relates to the cooling of a rotary kiln with a liquid cooling agent. According to the invention, the cooling agent is distributed to form an essentially even liquid blanket above the rotary kiln (1). In order to achieve this, a number of baf... | 11/27/1990 |
| 4969992 | Separating conveyor The invention relates to a separating conveyor for separating solid materials from liquids. According to the invention, above the conveying path (17) of the conveyor and essentially supported against the conveying path (17) there is arranged a grate (1) w... | 11/13/1990 |
| 4966668 | Method for the treatment of metal objects A sintered permanent magnet having the composition RE2 T14 B, where RE is a rare earth metal, T is a transition metal and B is boron, is treated by ion plating the magnet at an elevated temperature in the presence of a gas phase.... | 10/30/1990 |
| 4958490 | Method for reducing nitric oxide emissions in exhaust gases from diesel engines A method for reducing the nitric oxide emissions of the exhaust gases from a diesel engine by means of a controlled recirculation of the exhaust gases, which are cooled off and humidified in a water bath. The exhaust gases created in the diesel engine (1)... | 09/25/1990 |
| 4946811 | Method for mixing molten iron silicate with ferroalloy slag in order to produce fire-resistant and chemically resistant fiber The present invention relates to a method for preparing iron silicate slags, by means of mixing with ferroalloy slag, to a molten slag which can be defibrated into fire-resistant and chemically resistant fibers. The advantageous composition for the molten... | 08/07/1990 |
| 4937057 | Method for removing sulphur in elemental form from gases containing sulphur dioxide or sulphur dioxide and hydrogen sulphide The present invention relates to a method for removing sulphur dioxide and possible hydrogen sulphide as well as nitric oxides from exhaust gases by means of sulphides in a liquid phase so that the sulphur is recovered in the form of molten elemental sulp... | 06/26/1990 |
| 4934285 | Method for treating waste materials The invention relates to a method for treating waste materials, particularly municipal solid waste materials. In the method the waste material is first pretreated in order to divide the waste material in a compost fraction and a refuse-derived fuel, and t... | 06/19/1990 |
| 4925598 | Aerator for industrial and domestic wastewaters The invention relates to the aerating of domestic and industrial wastewaters by means of an aerator placed on the bottom of the oxidation pond. Particularly the invention relates to the structure of the stator of the aerator. The stator comprises the stat... | 05/15/1990 |
| 4917775 | Method for measuring and adjusting electrochemical potential and/or component content in the process of treating valuable materials The invention relates to a method for measuring and adjusting electrochemical potential and/or component content in the process of treating valuable materials, when the valuable materials should be recovered either together or separately by aid of the val... | 04/17/1990 |
| 4911225 | Mould for billets A mould for the continuous casting of billets of steel or other metal with a high melting point is manufactured by electroforming and is reinforced throughout its thickness by a reinforcing material, such as carbon, boric, or glass fibers.... | 03/27/1990 |
| 4908058 | Method and apparatus for reducing dust accretions while treating gases in a smelting furnace The invention relates to a method and apparatus for reducing dust accretions while treating exhaust gases containing sulphur dioxide in smelting furnaces. According to the invention, on the roof (10) of a waste heat boiler connected to a smelting furnace ... | 03/13/1990 |
