| Patent Number |
Title Of Patent |
Date Issued |
| RE31946 |
Process for consolidating and sealing off geological and artificially deposited rock and earth f |
July 16, 1985 |
| Waterglass solutions are mixed with polyisocyanates and these emulsions are then left to harden in the formations. Introduction of the mixture into the formations which are required to be consolidated, e.g. deposits of coal, is mainly carried out by forcing the mixture under pressure int |
| 5609731 |
Process for gas pressure regulation in the retort of a coke oven |
March 11, 1997 |
| A process is disclosed for regulating the gas pressure in the retort of a coke oven. Pivotable cup valves arranged in the elbows of the ascending pipe are actuated as throttling members according to the pressure curve resulting from gas formation from the coal to be cokefied. Throttling |
| 5560736 |
Process for sealing out water leakage from geological rock formations |
October 1, 1996 |
| A method is described, using a polyurethane resin mixture, for sealing off points through which water enters geological rock formations. The method utilizes an isocyanate component (a) and a polyol component (b), to be intimately mixed in a static mixer. The mixture is introduced under |
| 5560437 |
Telemetry method for cable-drilled boreholes and method for carrying it out |
October 1, 1996 |
| A telemetry system for obtaining loggings by an independently guiding logging probe provided with a sensor includes the logging probe ejected in a drill string, so that the sensor projecting through a drill bit of the drill string has an access to the bottom and walls of the drill bore, |
| 5553677 |
Survey process for cable core borings and device for implementing it |
September 10, 1996 |
| A survey process for cable core borings in which an inner core tube (3) with an autarcally operating measuring probe (24) releasably secured via a core retaining sleeve adapter (20) is fed into a core boring rod (6) and blocked in an outer core tube (4) with a boring ring (2) via a core |
| 5517920 |
Device for sequentially firing electrical detonators |
May 21, 1996 |
| The invention concerns a device for the sequential firing of electrical detonators in several firing circuits, the device consisting of a detonating machine, electric leads and switches for activating the firing circuits. The detonating machine (1) is connected by a lead (2) to an el |
| 5498589 |
Process for the production of carbon molecular sieves |
March 12, 1996 |
| A process is disclosed for preparing a carbon molecular sieve used for the separation of oxygen from nitrogen, which comprises the steps of:(a) milling hard coal to a grain size of 95%<20.mu.m;(b) oxidizing the finely milled hard coal with air in a fluidized bed;(c) adding water and coal tar |
| 5439491 |
Fluidized bed generator for allothermic gasification of coal |
August 8, 1995 |
| Apparatus is disclosed for the allothermic gasification of coal with steam. The gasifier is horizontally arranged with heat exchange tubes in separate gasification and pyrolysis zones so that a heat exchange medium is used in both zones. |
| 5395485 |
Reactor chamber door for large-scale coking reactors |
March 7, 1995 |
| A large-scale coking reactor including a housing provided with a chamber and with outer and inner chamber frames, a displaceable outer door elastically compressed against the outer frame and formed with a respective elastic peripheral seal compressible against the frame and with an o |
| 5346515 |
Fluidized bed gas generator for allothermic gasification of coal |
September 13, 1994 |
| Apparatus is disclosed for the allothermic gasification of coal with steam. The gasifier is vertically arranged with heat exchange tubes in separate gasification and pyrolysis zones so that a heat exchange medium is used in both zones. |
| 5275640 |
Process for obtaining nitrogen from air or nitrogen-containing gases by pressure swing adsorptio |
January 4, 1994 |
| Process for obtaining nitrogen from air or nitrogen-containing gases by pressure exchange adsorption and desorption on two alternately operated adsorbers filled with carbon molecular sieves, whereby air is passed through the adsorber so that the oxygen is adsorbed and enriched nitrogen |
| 5248651 |
Process for the production of carbon molecular sieves |
September 28, 1993 |
| A process for producing carbon molecular sieves for the separation of oxygen and nitrogen, whereby finely ground hard coal particles are oxidized with air in a fluidized bed, the coal is then formed after the addition of water and binders and carbonized at temperatures of 800.degree. |
| 5210954 |
Clinometer |
May 18, 1993 |
| A gradient indicator has a clinometer arranged on a motor-driven turntable allows reversible measurements to be taken and supports the gradient indicator in precisely reproducible positions on bearing faces of the base in the various measurement positions. In addition, the turntable can |
| 5181633 |
Container for bulk material with discharge chute |
January 26, 1993 |
| A container for bulk material includes a hollow glide body provided with inner walls forming an orifice opening into a bottom of the container, outer walls formed shorter than inner walls and a distribution cone formed with respective walls. |
| 5179058 |
Process for manufacturing a carbonaceous catalyst for the reduction of nitrogen oxides in exhaus |
January 12, 1993 |
| A process is disclosed for treating carbonaceous catalyst with a gaseous halogen or a gaseous halogen compound to increase the catalytic activity and prolong the useful life of the catalyst. The treatment of the catalyst is conducted at temperatures above about 150 degrees C., preferably |
| 5128021 |
Pitch from coal tar pitch, method of its production, as well as application of such pitch materi |
July 7, 1992 |
| A novel pitch material made from coal tar pitch has:a) mesophase content of .ltoreq.2%,b) content of toluene-insolubles (.beta.-resin) between 58 and 75%,c) content of quinoline-insolubles of <2%,d) softening point in the 200.degree. to 300.degree. C. range, according to the Kramer-Sarnow (KS |
| 5108467 |
Process for at least partially separating a gaseous component from a mixture of gaseous componen |
April 28, 1992 |
| Process to obtain nitrogen from gas mixtures containing oxygen and nitrogen by using alternating pressure adsorption on carbon molecular sieves, which comprises an adsorption cycle and a desorption cycle, in which the desorption cycle--which may also include the pressure equalization |
| 5089048 |
Process for helium enrichment |
February 18, 1992 |
| A method is provided for extracting helium from a relatively helium poor gas mixture through a pressure swing adsorption process which adhieves an enriched product gas containing over 50% helium. The gas mixture to be enriched is fed cyclically to four adsorber vessels ranged in parallel |
| 5080694 |
Process for helium recovery |
January 14, 1992 |
| A method is provided for the extraction of hellium of high purity, and high yield, with intermediate enrichment in refrigerating plants, from gases containing very low helium concentrations, by an alternating pressure adsorption process. the helium containing gas is fed cyclically in eac |
| 5069795 |
Process for separating hydrocarbons from waste water |
December 3, 1991 |
| A process for separating hydrocarbons from waste water, in particular aromatic hydrocarbons, by means of an absorbing filtering layer. The hydrocarbons dissolved and non-dissolved in the waste water are separated in a single stage. The waste water is supplied to a metallic slotted mu |
| 5064444 |
Process for the allothermic gasification of coal |
November 12, 1991 |
| A process is disclosed for allothermic gasification of coal under pressure with water vapor in a gas generator containing heat-exchange tubes for a heat transfer medium. The hot heat transfer medium that enters the gas generator by the heat-exchange tubes is first introduced in the g |
| 5007487 |
Method and apparatus for making drill holes under spatially restricted conditions |
April 16, 1991 |
| For making drill holes, in particular under cramped conditions, an apparatus is used which comprises a drill rod consisting of individual segments and guided in the cradle or slide. The individual segments comprise end pieces which are constructed as centering bushes and guide bushes |
| 4990220 |
Coking reactor |
February 5, 1991 |
| Coking system, wherein the coking blends particularly based on hard coal, are fed batchwise to a reactor (1), which is heated indirectly by heat recovery in regenerators (I, II) or recuperators, whereby the reactor is built as a high-capacity coking reactor (100), several high-capacity |
| 4985052 |
Process for producing high purity oxygen gas from air |
January 15, 1991 |
| A process for producing a high purity oxygen from air by PSA which comprises connecting a first adsorption unit packed with carbon molecular sieve and a second adsorption unit packed with zeolite molecular sieve in series, conducting PSA operation separately in each of the units during |
| 4965292 |
Process for strengthening geological formations |
October 23, 1990 |
| The present invention relates to a process for strengthening geological formations in underground mining or underground construction work by the introduction of reaction mixtures which react to form polyurethane plastics into the formations which are required to be strengthened, wher |
| 4961705 |
Fluidized bed reactor having a housing case from steel |
October 9, 1990 |
| A fluidized-bed reactor composed of modular steel castings is assembled from a support frame, a sliding frame and reactor housing segments on the frames so as to be able to withstand the temperatures and temperature gradients to which the reactor may be subject. |
| 4960447 |
Reactor with moving layer for the removal of undesirable gaseous components from gases |
October 2, 1990 |
| A reactor having a moving layer for the removal of undesirable components for gases has an upright moving-adsorber chamber flanked by jalousie arrays of shutters laterally separating that chamber from a gas inlet chamber and a gas outlet chamber communicating through the jalousies with |
| 4921826 |
Process for producing an active carbon catalyst |
May 1, 1990 |
| Process for producing an active catalyst by ammonia treatment of active carbons at high temperatures, in which an active carbon/active coke is impregnated with an aqueous solution of ammonium sulphate, which can be reacted with sulphuric acid, is dried at 120.degree. C. and is then heate |
| 4915921 |
Method for the removal of sulfur oxide and nitrogen oxide from exhaust gases |
April 10, 1990 |
| Method and apparatus for the removal of sulfur oxides and nitrogen oxides from exhaust gas with the addition of gaseous ammonia at temperatures between 110.degree. and 180.degree. C. The exhaust gas is led across carbon-containing adsorption agent flowing downwardly within a reactor, a |
| 4904125 |
Process for strengthening geological formations |
February 27, 1990 |
| The present invention is directed to a process for the strengthening of geological formations in underground workings and mines by the introduction of reaction mixtures which react to form polyurethanes into the formations which are to be strengthened, the reaction mixtures being bas |
| 4880765 |
Process for producing carbon molecular sieves |
November 14, 1989 |
| Process for producing carbon molecular sieves for separating oxygen and nitrogen by treating a carbonaceous product with inert gas and steam in a vibrating oven and further treating said product with benzene at a high temperature in a vibrating oven to thereby narrow the existing pores. |
| 4855116 |
Activated coke method of removing nitrogen oxides from exhaust gases |
August 8, 1989 |
| Use of activated carbon for reduction of nitric oxides with ammonia from exhaust gases using ammonia as reduction agent in the temperature range between 90.degree.-150.degree. C., made from hardcoal, blended with binding agents like pitch, bitumen, tar or tar oil, shaped and subjected |
| 4833877 |
Process for the reduction of pollutant emissions from power stations with combined gas/steam tur |
May 30, 1989 |
| Pollutant emissions produced during gas turbine power generation with a fuel gas from coal gasification are reduced by initially cooling the fuel gas to a temperature above the dewpoint but between 200.degree. and 400.degree. C. to condense alkalies on dust grains. In the fuel gas, HCl |
| 4815586 |
Chain scraper conveyor |
March 28, 1989 |
| A chain scraper conveyor having at least one conveyor chain circulating in the conveyor includes drivers which are secured to the chain and which extend from both sides thereof. The drivers include guides that are received in trough channels adjacent the bottom plate of the conveyor. |
| 4784229 |
Device, preferably for underground purposes, to transfer information out of a drilling hole |
November 15, 1988 |
| A choker valve assembly for a drill string is provided for transmitting information measured in an underground bore hole by sensing devices, to the surface by modulating the pressure of the flushing fluid. The valve assembly includes a housing that is non-rotatably connected within the |
| 4778490 |
Process for removal of volatile matter from coke-oven plant waters |
October 18, 1988 |
| In a process for removal of volatile matter such as ammonia, hydrogen-sulphide, and prussic acid from coke-oven plant water by means of gas in a stripper, the tail gas of an ammonia destruction unit is used as stripping gas. Tail gas from a Claus plant can be proportioned to the tail |
| 4764355 |
Process for removal of solid and gaseous noxious matter from hot gases |
August 16, 1988 |
| Metal candle-type gap filters are used to remove particles from a hot gas stream containing sulfur oxides so that, in the filter cake which is built up upon the candle filters, the sorption reaction can continue as the hot gas stream passes through the filter. |
| 4761099 |
Process for strengthening and sealing geological formations |
August 2, 1988 |
| The present invention is directed to a process for strengthening and sealing geological formations which are moist or contain water, in particular loose stone, by the injection of a mixture which reacts to form polyurethane, characterized in that a polyisocyanate component is injected |
| 4743342 |
Coke quenching apparatus |
May 10, 1988 |
| A coke quenching car comprises an open coke receptacle having a sloping bottom wall inclined toward one side, closely spaced vertical internal walls, a vertical side wall opposite the one side and end walls. All of the walls are formed with cooling fluid passages. The vertical side wall |
| 4726712 |
Method of pipeline filling the interstices of controlled caving areas |
February 23, 1988 |
| In conjunction with the face mining of bituminous coal, previously excavated or some portions of the tunnel are collapsed in a manner to form a mass of debris into which a mixture of electrostatic filter ash and water is injected to stabilize the structure. |
| 4715746 |
Method of strengthening geological formations |
December 29, 1987 |
| The present invention relates to a method of strengthening geological formations in underground workings or mines by introducing reaction mixtures containing a polyisocyanate component (a), a polyol component (b) and optionally auxiliary agents and additives (c) into the formation which |
| 4710302 |
Process for the separation of the water resulting during the coking process into a small salt-ri |
December 1, 1987 |
| In a process for the separation of the water resulting during coking in a small salt-rich fraction and a large salt-poor fraction, the crude gas, after being cooled in the condenser is directed through an electrofilter, prior to entering the primary coolers. Thereby, the condensate resul |
| 4657387 |
Method of and apparatus for the investigation of inaccessible subterranean spaces such as boreho |
April 14, 1987 |
| A method of and an apparatus for investigating subterranean boreholes especially in bituminous coal mining. Optical fiber cables carry light for illuminating the hole into the latter and an image of the wall of the borehole from the latter to an evaluating means external of the borehole. |
| 4657131 |
Tension regulator for a chain drive |
April 14, 1987 |
| A tension regulator for a chain drive has a sensor positioned and attached adjacent the chain, preferably to chain guides for the chain which allow some free play for the chain, a logical switching unit connected to the sensor which signals when the chain configuration changes, particula |
| 4652174 |
Method of forming underground ducts, conduits and the like |
March 24, 1987 |
| The manufacture of extended, inaccessible holes for underground ducts, conduits and the like is performed by a closed construction process, wherein the preferably remotely-controlled excavation is performed and following that a structure is installed which is employed as the product |
| 4651520 |
Power and heat generation from fuels |
March 24, 1987 |
| A method and apparatus for power and/or heat generation from fuels. The fuel is fed to a combustion chamber and a pressurized gaseous oxidizing agent is fed to the combustion chamber to fire the fuel in a fluidized bed. The smoke gases coming from the fluidized bed are cooled, purified i |
| 4648753 |
Rock-bolt stabilizer device for mining and tunneling applications |
March 10, 1987 |
| A rock bolt stabilizer device which can be arranged in boreholes for stabilizing rock and similar host environments in mining and tunneling. The device is adapted to perform the function of a rigid profile anchor under predetermined stress conditions, and is also adapted to perform the |
| 4630479 |
Sampling device for solids in a pressurized reactor |
December 23, 1986 |
| A sampling device for solids from a pressure reactor includes a housing which is connected to the reactor and accommodates a tube with its one end opening into the reactor. Movable within the tube is a sampling piston which is provided with gas-impermeable piston rings. To withdraw solid |
| 4627174 |
Process and system for the dry quenching of coke |
December 9, 1986 |
| Glowing coke descending through a cooling duct in a coking plant is quenched by two gas flows respectively traversing an upper compartment and a lower compartment of the duct, the two compartments meeting at a restricted gate for the passage of the coke. At least the lower gas flow, |
| 4622008 |
Method of and apparatus for the thermal regeneration of adsorbents |
November 11, 1986 |
| A method of and an apparatus for the regeneration of adsorbent particles containing carbon in which the particles are introduced into downwardly moving shafts of a fluidized quartz sand bed spaced along a regenerator and are then deflected downwardly at the bottoms of the shaft by rh |
