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| Number | Title | Issue Date |
| 7862126 | Method of providing a degradation drum In one aspect of the invention a degradation drum comprises a generally cylindrical body comprising inner and outer diameters. At least one degradation assembly is disposed on the outer diameter and it comprises a holder and a pick shank secured within a bore of the... | 01/04/2011 |
| 7520570 | Tool extraction system for rotary cutter device In one exemplary aspect, an extraction tool adapted for extraction of a cutting tool holder mounted to a rotary member of a rotary cutting device is disclosed. The extraction tool comprises a tool frame. A first extraction wedge and a second extraction wedge are con... | 04/21/2009 |
| 7416258 | Methods of using a laser to spall and drill holes in rocks Apparatus and methods of using lasers are provided for spalling and drilling holes into rocks. A rock removal process is provided that utilizes a combination of laser-induced thermal stress and laser induced superheated steam explosions just below the surface of the... | 08/26/2008 |
| 7401862 | Construction machine A construction machine for machining floor surfaces, wherein the machine includes a milling roll having a plurality of tool holders on a surface thereof. A tool, especially a straight shank tool, is received in a tool receiving element of the tool holder in an excha... | 07/22/2008 |
| 7401863 | Press-fit pick In one aspect of the invention, a pick comprises a shank attached to a base of a steel body, a cemented metal carbide core press fit into the steel body opposite the shank, and an impact tip bonded to a first end of the core opposite the shank. The impact tip compri... | 07/22/2008 |
| 7360844 | Geosteering detectors for boring-type continuous miners The invention provides, in one embodiment, a detector for a miner comprising a gamma sensing element and a light sensing element coupled to the gamma sensing element. According to the embodiment, the detector is mounted on a rotary cutter of a boring-type continuous... | 04/22/2008 |
| 7360845 | Cold-formed rotatable cutting tool and method of making the same A cutting tool body includes a net-shaped steel body that has an axial forward end and an axial rearward end. The net-shaped steel body contains at the axial forward end thereof a cold-headed socket. The net-shaped steel body further contains a cold-headed puller gr... | 04/22/2008 |
| 7350876 | Combination panline and utility drilling or bolting unit A drilling or bolting unit for selective use with either a vehicle or a panline of a face conveyor associated with a longwall miner or mining machine is disclosed. In one embodiment, the unit comprises a base adapted for engaging the panline and a plurality of recei... | 04/01/2008 |
| 7303352 | Connection device A connection device for a plow installation, the device including a connection bracket having a basic body operable for attachment to a channel or guide section of the plow installation. A joint socket in the basic body includes a socket portion operable to receive ... | 12/04/2007 |
| 7255406 | Method for manufacturing track for auger boring machine An auger boring machine having a drive mechanism for moving the machine along a desired direction of travel includes a drive motor having a shaft and a pinion mounted on the shaft. A method for manufacturing a track for such a boring machine includes providing a tra... | 08/14/2007 |
| 7207632 | Shield system for coal mining A mining system for remotely mining ores and minerals which protects against falling rock and allows evacuation of a miner and conveying system in the case of a cave in. A shield is advanced into a mine. Within the shield, the miner and conveying system are also adv... | 04/24/2007 |
| 7154098 | Ruggedized scintillation detector for portal monitors and light pipe incorporated therein A radiation detector includes a housing, an elongated, rectangular crystal having four longitudinally extending corners, and a photomultiplier tube both supported in the housing, with a light pipe located axially between respective facing ends of the photomultiplier... | 12/26/2006 |
| 7048340 | Method for introducing and blowing rock dust and device for carrying out said method In a method for introducing and blowing rock dust to bind carbon dust during advance working or coal mining using an advance working or mining machine, respectively, the cutting tools are retracted relative to a displaceable machine frame after having cut an outbrea... | 05/23/2006 |
| 7044341 | Device for packaging and dispensing a product, such as a cosmetic product The present application relates to a device (1) for packaging and dispensing a pressurized product, comprising: a) a container (2, 70) containing the product: b) a dispensing element (5, 75) fitted to the container and provided with an activatin... | 05/16/2006 |
| 7032978 | Crushing method using large boreholes in underwater rock The present invention relates to a crushing method using large boreholes in an underwater rock in which plural large boreholes are drilled on the rock in a predetermined space, the drilled boreholes form plural free surfaces, and the large drop hammer gives a blow t... | 04/25/2006 |
| 7028866 | Pressurized plastic bottle for dispensing an aerosol A pressure resistant plastic bottle for containing and dispensing an aerosol composition. The plastic bottle is comprised of a hollow elongate body having a central portion, a top portion and an opposite bottom portion with the central portion having an inwardly con... | 04/18/2006 |
| 6994403 | Apparatus and method for removing floor tile An apparatus and a method that is used to mechanically remove flooring tiles intact from the foundation and then after the foundation and tile surfaces have been prepared, the same tile is reset undamaged. ... | 02/07/2006 |
| 6978916 | Metering valve for aerosol container A metering valve assembly comprising a ferrule and a valve housing defining an internal cavity. The valve housing accommodates an annular flange and a compression spring therein with a valve gasket closing the internal cavity. The valve housing is attached to the fe... | 12/27/2005 |
| 6935542 | Device for retaining and for inserting a flexible tube assembly into a fluid container A device for use with a container having a container top includes a tubular retainer engaging the container top and a tube assembly. The tubular retainer has a retainer top, a retainer bottom, a longitudinal axis, and an inner passageway formed along the longitudina... | 08/30/2005 |
| 6857706 | Mining method for steeply dipping ore bodies The present invention is directed to a mining method for steeply dipping orebodies. In the method, an excavator 152 is tethered to a deployment system 120 by one or more cables/umbilicals 144. The excavator 152 excavates slices 172... | 02/22/2005 |
| 6848748 | Mining system with drilling, loading, conveyor, and support The extraction machine for underground ore extraction operations, with extraction of the extraction product by blasting has an advancing support equipment (11) and a face conveyor (18) coupled to it as well as at least one boring device (26) for... | 02/01/2005 |
| 6796616 | Mining system A method for extracting mineral deposits. First, a predetermined surface is contour mined in a mineral seam, such as a mountain, to provide an elongate active mining area and a highwall. Next, a sealable intake and return canopy is placed at substantially opposing e... | 09/28/2004 |
| 6764139 | System for and method of demolition A rugged demolition system, and method for its use, for pulling up horizontal structures such as concrete or asphalt and breaking them into pieces, pulling over and breaking up vertical structures such as retaining walls and house/building walls, pulling up vertical... | 07/20/2004 |
| 6761415 | Trailer for a tunnel borer follower train A trailer for a tunnel borer follower train comprises a chassis provided with a plurality of wheels, the chassis at rest presenting a longitudinal axis and a longitudinal plane of symmetry that is vertical. The trailer also comprises at least two tanks mounted on th... | 07/13/2004 |
| 6698843 | Method and apparatus for remote self-propelled conveying in mineral deposits A method and apparatus for the mining of material from a seam includes a mining apparatus and a self-propelled conveyor capable of advancing or retreating in the seam on its own power and an advancing and steering arrangement for the mining apparatus. The... | 03/02/2004 |
| 6672673 | Ore pass inspection system The present invention discloses an apparatus and method for imaging and clearing an ore pass hang-up. The apparatus includes: a platform that is movable along generally a longitudinal direction of an ore pass; a controllable propulsion unit capable of pro... | 01/06/2004 |
| 6547336 | Open cast mining device and apparatus for testing the cutting minability of critical material A surface mining and testing apparatus and system provides for the adaptation of a surface miner to the specific geological conditions of a new area of use. The special features of the surface miner are the arrangement of the milling roller (5) in front o... | 04/15/2003 |
| 6325460 | Machine used in connection with underground mining having an operator protective shield A protective shield for machines having an operator station protects an operator located on the operator station during operation of the machine. The protective shield defines a flexible curtain of elongated members which covers an exposed side of the ope... | 12/04/2001 |
| 5159179 | Heating device for accelerating the action of expansive mortars A device for accelerating the action of common expansive mortars (M) (used as a replacement for explosive products for demolition and cutting operations on blocks of rock or concrete) comprises at least one heating element (1), which is introduced into th... | 10/27/1992 |
| 5003236 | Method of and apparatus for moving electrically powered mining equipment A method of moving an electrically powered mining machine between locations that have electric power supplies, the mining machine of the type having at least one electric motor for moving the mining machine, the method including connecting a temporary pow... | 03/26/1991 |
| 4921309 | Mining machine adapted for attachment of continuous miner cutter boom assembly The mining machine can serve a dual function, as a road header or as a continuous miner. The machine has a turrent 14 into which a road header assembly can be directly pivotally mounted. Alternatively a continuous miner cutter assembly can be pivotally mo... | 05/01/1990 |
| 4815363 | Life protector enclosure for mines An enclosure for periodic movement in an underground mine to provide a place for the safety of miners. This enclosure has a frame with an envelope unit attached thereto to define an interior volume for habitating by the miners upon notification of eminent... | 03/28/1989 |
| 4746170 | Mining machinery There is provided a continuous mining system comprising at least one chassis, boom arrangement for supporting a continuous miner cutting head, roadheader turntable assembly and, optionally, drilling machine. The latter three items are adapted so that each... | 05/24/1988 |
| 4621871 | Quickly replaceable cutter socket A mounting for quickly removing and replacing cutter teeth on a rotary drum includes a cutter tooth socket mating with a socket housing defining a tapered channel having a base surface and a lateral surfaces inclined with respect to the longitudinal axis ... | 11/11/1986 |
| 4129335 | Fluid jet method and device for breaking hard material A hard compact material, such as rock, is broken by directing a high velocity jet of fluid, such as water, into a drill hole in the material to be broken. The jet is generated by a nozzle and is directed into the drill hole through a tubular member, which... | 12/12/1978 |
