Patents
Patents for E21C 27 - Machines which completely free the mineral from the seam (1,602)
03/2007
03/20/2007US7192094 Auger flight support system
03/13/2007US7188441 Plow guide for a chain-pulled plow
03/07/2007EP1760255A1 Mining apparatus
03/07/2007EP1760254A1 Mining apparatus
02/2007
02/14/2007CN2869320Y Height-adjusting device for coal planing machine plough
02/13/2007US7175237 Hewing or cutting roll
02/08/2007US20070029864 Method for the mining of coal and coal planer installation
02/08/2007US20070029863 Planing device and method for activating a planing device
02/01/2007DE102005036359A1 Method for recovering coal comprises using a coal planing device having a coal plane which moves to and fro between a drive station and a reversing station with a reversing chain wheel
01/2007
01/31/2007CN1904312A Method for the mining of coal and coal planer installation
01/25/2007DE19737936B4 Abbaueinrichtung für den Untertagebergbau, insbesondere für die Kohlegewinnung in Strebbetrieben Mining equipment for underground mining, especially for coal mining in longwall operations
01/24/2007CN1902377A Core breaker for an earth strata cutting assembly
12/2006
12/07/2006DE19819140B4 Vorrichtung zum Führen eines Kohlenhobels an der Förderrinne eines Kettenkratzförderers An apparatus for performing a coal plow on the conveyor trough of the scraper chain conveyor
12/05/2006US7144087 Systems and methods for milling paving material with increased stability, support, and power
11/2006
11/23/2006WO2005104673A3 Mining apparatus with precision navigation system
11/09/2006DE102005020170A1 Motorised tunnelling winning scraper has scraper blade mounted on chain driven by differentially operated motors
11/02/2006US20060244302 Plough guide for a chain-pulled plough
11/02/2006DE19750484B4 Gewinnungseinrichtung, insbesondere für die Kohlegewinnung in untertätigen Gewinnungsstreben Extraction device, in particular for the coal mining in under active recovery efforts
11/01/2006CN1854461A Coal planer and method for controlling same
10/2006
10/19/2006US20060232122 Underground Mining Machine
10/18/2006CN2828313Y Coal mine tunnelling machine
10/04/2006EP1706585A1 Core breaker for an earth strata cutting assembly
09/2006
09/28/2006DE19736662B4 Abbaueinrichtung für den Untertagebergbau Mining equipment for underground mining
09/27/2006CN1277041C Mining and tunneling device
09/20/2006CN1834404A Plough guide for a chain-pulled plough
08/2006
08/17/2006DE19528850B4 Verfahren zur Bestimmung und Regelung der Kettenvorspannung von kettenbetriebenen Gewinnungs- und Fördersystemen sowie Vorrichtung zur Durchführung des Verfahrens Methods for identification and control of the chain pre track-driven extraction and delivery systems, and apparatus for performing the method
08/03/2006WO2006079536A1 Device for milling rock and other materials and method or milling rock or the like using said device
08/02/2006CN2802087Y Planing knife of coal planer
07/2006
07/20/2006DE102005060087A1 Sealing device for cutting compartment of cutting, tunneling or extracting machines has cross section, which is designed as recess in segment slider and partly overlaps and is in form-fit position with other segment slider
07/11/2006US7073870 Bit holder for a ploughing bit of a coal or extraction plough and ploughing bit
07/04/2006US7070040 Toggle and toggle connection assembly
06/2006
06/29/2006DE202006006234U1 Sliding plane guide for extraction plane, has floating spacer and guide arbor forming one assembly, and articulated link detachable by combined sliding of link part formed at assembly with a flow shot sided articulated link
06/28/2006EP1317602B1 Method for boring and placing bolts for imbedding adhesively and device for carrying out this method
06/14/2006CN2787832Y Planing type trackless coal mining machine
06/07/2006EP1664672A2 Geosteering detectors for boring-type continuous miners
06/06/2006US7055913 Chain guide arrangement on a mining machine
06/06/2006CA2414368C Extendable and retractable rotor arm assembly
06/01/2006WO2006056000A1 Coal-cutting machine
05/2006
05/23/2006US7048340 Method for introducing and blowing rock dust and device for carrying out said method
05/18/2006DE202005005571U1 Chain guide element for underground extraction equipment drive chains has guide surface with at least 2 contact zones for element leg for interaction with vertical chain element leg in inlet and/or outlet section before/after chain wheel
05/04/2006DE102005018120B3 Extraction machine for underground mining has gear arrangement has with compensation shaft passing through cantilever arm and coupled to drive and cutter roller unit via first and second angled gear stages
05/02/2006US7036890 Core breaker for an earth strata cutting assembly
04/2006
04/27/2006US20060087169 Coal plow cutter
04/12/2006EP1497536A4 Oscillating disc cutter with speed controlling bearings
03/2006
03/23/2006US20060061206 Tool, cutter and button disk
03/23/2006US20060061205 Device for produing a gas-liquid mixture in the vicinity of cutting tools
02/2006
02/23/2006US20060038438 Method and apparatus for remote self-propelled conveying in mineral deposits
02/22/2006CN1737332A Planing type trackless coal getting machine
02/09/2006DE19649108B4 Kurzfrontmaschine für den Untertagebergbau mit einer Führung für ein Bohrgerät zum Herstellen von Bohrlöchern für die Firstverankerung Short front machine for underground mining with a guide for a drill for making holes for anchoring First
02/02/2006DE10132608B4 Aktivierungsgerät und Aktivierungssystem zur Bereitstellung eines Schlagimpulses für Schneidköpfe hydraulischer Trägergeräte Activation device and activation system for providing a shock pulse for cutting heads hydraulic carrier devices
12/2005
12/22/2005DE202005016177U1 First chisel support adjustment arrangement for production plane has gear mechanism consisting of planetary gear that is interposed between input shaft and worm wheel
12/20/2005CA2278735C Mining ultra thin coal seams
12/20/2005CA2189132C A highwall mining system with mining and removal of coal (or ore)
12/08/2005WO2005012944A3 Geosteering detectors for boring-type continuous miners
12/07/2005CN2744834Y Combined excavating machine
11/2005
11/10/2005WO2005104673A2 Mining apparatus with precision navigation system
11/10/2005US20050248209 Hewing or cutting roll
11/10/2005CA2561803A1 Mining apparatus with precision navigation system
10/2005
10/19/2005CN1685133A Device for producing a gas-liquid mixture in the vicinity of cutting tools
09/2005
09/13/2005US6942301 Method for boring and placing bolts for imbedding adhesively and device for carrying out this method
08/2005
08/09/2005US6926368 Method and apparatus for remote self-propelled conveying in mineral deposits
07/2005
07/28/2005DE102004059943A1 Vortriebs- oder Gewinnungsmaschine mit Ankerbohr- und -setzeinrichtungen Heading or extraction machine with anchor drilling and setting devices
07/27/2005CN1646788A Oscillating disc cutter with speed controlling bearings
07/21/2005WO2005066459A1 Core breaker for an earth strata cutting assembly
07/21/2005US20050156460 Advance working or mining machine
07/20/2005CN1641186A Coal digging machine for underground mining
07/14/2005US20050151412 Plough for underground mining
07/07/2005US20050146198 Core breaker for an earth strata cutting assembly
06/2005
06/30/2005US20050140200 Oscillating disc cutter with speed controlling bearings
06/16/2005US20050129466 Roadheading or mining machine with roof bolt drilling and setting devices
06/14/2005CA2389736C Apparatus and method for continuous mining
06/01/2005CN1204331C Mining machine and mining method
05/2005
05/25/2005DE202005004383U1 Hobelführungsschuß für Gleithobel Plow guide shot for Gleithobel
05/24/2005CA2293238C Conveyor for ultra thin seam coal mining
04/2005
04/21/2005DE19732946B4 Gewinnungseinrichtung für den Untertagebergbau, insbesondere für die Kohlegewinnung in Strebbetrieben Obtaining means for underground mining, especially for coal mining in longwall operations
04/05/2005CA2167182C Highwall mining system
04/05/2005CA2167181C Highwall mining system
03/2005
03/31/2005US20050067879 Combination panline and utility drilling or bolting unit
02/2005
02/24/2005US20050040692 Method and apparatus for remote self-propelled conveying in mineral deposits
02/10/2005WO2005012944A2 Geosteering detectors for boring-type continuous miners
02/10/2005CA2783273A1 Geosteering detectors for boring-type continuous miners
02/10/2005CA2534439A1 Geosteering detectors for boring-type continuous miners
02/03/2005US20050023881 Geosteering detectors for boring-type continuous miners
01/2005
01/19/2005EP1497536A1 Oscillating disc cutter with speed controlling bearings
12/2004
12/29/2004CN2667160Y Accumulator battery antiexplosive tractor shovel
12/23/2004US20040256907 Plow guide for a chain-pulled plow
12/09/2004US20040245844 Advancer for coal mining system
12/09/2004US20040245843 Platform and driver for coal mining system
12/02/2004DE10320169A1 Coal chipper for use in underground mining applications, has control drive having hydraulic jack for height adjustment of chisel holder, and locking device for securing chisel holder at predetermined height with respect to skid
12/01/2004CN1550637A Coal plough guide device for chain hauled shearer
12/01/2004CN1550429A Wing type hook for wing type hook connection device and wing type hook connection device
11/2004
11/11/2004US20040222067 Toggle and toggle connection assembly
10/2004
10/05/2004US6799809 Method and apparatus for remote self-propelled conveying in mineral deposits
09/2004
09/22/2004CN1530516A Vertical cross chain cutting method and its tunneller, long wall mining machine and stone mining machine
09/07/2004US6785988 Driving or mining machine
09/01/2004CN1164859C Driving cutting device
08/2004
08/26/2004DE202004009723U1 Drive for chain driven coal cutter has a housing fitted to the clearing chain housing and with a removable insert block for access to the chain wheel and chain lifter
08/25/2004EP1187968B1 Cutter loader
07/2004
07/29/2004US20040145231 Method for introducing and blowing rock dust and device for carrying out said method
07/22/2004DE20307151U1 Knebel für Knebelverbindungen und Knebelverbindung Gag for gag and gag connections connection
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