| Patents for E21C 29 - Propulsion of machines for slitting or completely freeing the mineral from the seam (839) |
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| 11/07/2006 | US7131637 Device for inserting wire or cable into a loom |
| 11/02/2006 | DE19750484B4 Gewinnungseinrichtung, insbesondere für die Kohlegewinnung in untertätigen Gewinnungsstreben Extraction device, in particular for the coal mining in under active recovery efforts |
| 10/05/2006 | US20060219992 Systems and methods for controlling duct pressurization for cable installation |
| 10/04/2006 | EP1706586A2 Alignment tool |
| 09/20/2006 | CN1276199C Plane chain strand comprising a chain lock link |
| 08/17/2006 | DE19528850B4 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 |
| 07/04/2006 | US7070168 Cable puller adapter |
| 06/08/2006 | WO2005084407A3 Innerduct guide tube assembly for fiber optic cable |
| 06/06/2006 | US7055913 Chain guide arrangement on a mining machine |
| 05/30/2006 | US7051999 Apparatus for fishing telecommunication or electrical wires, optical cables or conduit behind walls |
| 05/17/2006 | EP1495239B1 Plane chain strand comprising a chain lock link |
| 04/11/2006 | US7024806 Auxiliary assembly for reducing unwanted movement of a hoist rope |
| 03/16/2006 | US20060054874 Pig for installing a cable in a conduit |
| 03/15/2006 | EP1635036A1 Ploughing device for underground mining |
| 02/23/2006 | US20060038438 Method and apparatus for remote self-propelled conveying in mineral deposits |
| 02/02/2006 | US20060024138 Prop head bearing |
| 02/01/2006 | CN1729348A Coal face support in a mine |
| 01/05/2006 | US20060002770 Lite mine roof support crib and method |
| 11/01/2005 | US6959769 Plough chain strand comprising a chain lock link |
| 07/27/2005 | CN1644876A Chain guide structure of mining machine |
| 07/21/2005 | US20050156458 Chain guide arrangement on a mining machine |
| 07/14/2005 | US20050150141 Auxiliary assembly for reducing unwanted movement of a hoist rope |
| 07/07/2005 | DE10348491B3 Rundstahlgliederkette Round steel link chain |
| 05/26/2005 | US20050113198 Link chain |
| 04/27/2005 | CN1609472A Link chain |
| 04/21/2005 | US20050081666 Driving device for sprocket wheels of chain drives |
| 03/24/2005 | DE10340593A1 Antriebseinrichtung für Kettensterne von Kettenantrieben Drive means for chain star of chain drives |
| 03/09/2005 | CN1590810A Drive system for chain sprockets of chain drives |
| 03/02/2005 | CN2682207Y Polyurethane supporting roller for wire rope for mining |
| 02/09/2005 | CN2677614Y Alternate entry-driving machine |
| 01/20/2005 | US20050015527 Method and device for transmission of video data |
| 01/12/2005 | EP1495239A1 Plane chain strand comprising a chain lock link |
| 12/29/2004 | CN2667161Y Combined cable bearing wheel |
| 12/09/2004 | US20040245845 Shield system for coal mining |
| 12/09/2004 | US20040245844 Advancer for coal mining system |
| 12/09/2004 | US20040245843 Platform and driver for coal mining system |
| 11/18/2004 | DE202004014313U1 Coalface cutter advances along track supported by pivoting roller mount with elastic dampening bushes, dust and rock deflectors |
| 10/28/2004 | DE202004014092U1 Hobelvorrichtung zur Kohlegewinnung im Bergbau Planing device for coal extraction in mining |
| 10/14/2004 | DE10315018A1 Video data transmitting arrangement for has device for reducing data rate of video data sent by source to central arrangement so image replacement frequency and data rate to distributed device reduced |
| 09/30/2004 | US20040187360 Plane chain strand comprising a chain lock link |
| 08/18/2004 | CN2634117Y Driving mechanism installed outside tunneller |
| 08/18/2004 | CN1522346A Plane chain strand comprising a chain lock link |
| 07/01/2004 | WO2004055328A1 Coal face support in a mine |
| 06/03/2004 | DE10254021A1 Deep mine coal face cutter or coal scraper conveyer has main drive motor and gear and one secondary motor and gear with superimposed gear drive |
| 04/29/2004 | DE202004002741U1 Sprocket wheel for use with chain drive in underground application has sprocket body connected to drive shaft by internal splines and has teeth on either side of central gap |
| 03/18/2004 | DE202004000924U1 Kettenführungsanordnung an einer Bergbaumaschine Chain guide assembly to a mining machine |
| 03/11/2004 | DE19537414B4 Hobelantrieb mit Druckrollenabstreifer Planing drive with Druckrollenabstreifer |
| 12/24/2003 | DE20316017U1 Link chain has at least every other link as flat chain link with ratio between cross sectional surface in region of sides and cross sectional surface in center sections of round ends greater than 0.55 but less than 0.85 |
| 12/17/2003 | CN2592871Y Integral die-forged pin-rail |
| 12/17/2003 | CN2592870Y Horizontal connecting ring of traction cable chain for coal-winning machine |
| 10/23/2003 | WO2003087622A1 Plane chain strand comprising a chain lock link |
| 10/16/2003 | DE10216461C1 Cutting chain, for underground mining, has special links directly flanking the locking link holding the ends to form a continuous chain, which reduce wear on the locking link |
| 08/07/2003 | DE20308996U1 Funicular railway drive has an advancer and a mountain advancing machine as well as a strut drive which has struts in a longitudinal direction with cogs |
| 08/06/2003 | CN2564753Y Rolling self-moving machine tail device for belt conveyor |
| 06/11/2003 | CN2555399Y Coalcutting and tunnelling dual-purpose machine |
| 05/21/2003 | CN1108971C Chute loader |
| 02/26/2003 | CN2537817Y Coal cutter |
| 02/05/2003 | EP1280978A1 Device for guiding and operating a mining machine |
| 01/22/2003 | CN2532239Y Electric drawing coal excavator |
| 03/21/2002 | DE10044919A1 Tensioning unit for drive chain, especially for shearer loader, has variable position coupling piece connecting chain to tension cylinder |
| 11/22/2001 | US20010042984 Method for Threading Wire Through a Wall or Partition |
| 11/20/2001 | US6318704 Method for threading wire through a wall or partition |
| 11/15/2001 | WO2001086118A1 Device for guiding and operating a mining machine |
| 08/29/2001 | CN1070272C Driving device and method for operating controlling device thereof |
| 07/31/2001 | US6267449 Guide arrangement for a drum-type mineral cutting machine |
| 09/28/2000 | DE19844052C1 Guide arrangement for drum-type mineral cutting machine has guide block pivotally connected on guide arm of cutting machine for movement and guide rail arranged on conveyor, with arm fit into pocket block |
| 09/08/2000 | WO2000052302A1 Continuously operating mining machine for simultaneous mining and removing coal |
| 09/07/2000 | DE19909149A1 Kontinuierlich arbeitende Gewinnungsmaschine für das gleichzeitige Hereingewinnen und Abfördern von Kohle Continuous-mining machine for simultaneous Come gains and conveying away from coal |
| 08/23/2000 | CN1263855A Chute loader |
| 07/27/2000 | DE19902070A1 Mining arrangement equipment incorporates extraction machine movable along extraction gallery, particularly roller abrasive machine bridging over as portal channel of conveyor and having chain wheel engaging in drive chain |
| 03/08/2000 | CN2367766Y Combined support roller of steel wire |
| 11/24/1999 | CN1236058A Slit propeller with coated-pipe frame in cylinder |
| 10/27/1999 | CN2345692Y Concial tilted plate sedimentation tank |
| 10/07/1999 | DE19724925C2 Schrämmaschine für die Gewinnung mineralischer Stoffe im Langfrontbau unter Tage und ihre Verwendung Cutting machine for the extraction of mineral substances in Langfrontbau underground and their use |
| 08/03/1999 | US5931541 Drive mechanism for a combined cutter loader |
| 08/03/1999 | US5931540 Drive system having a pin drive chain for a cutting machine for underground mining |
| 05/20/1999 | DE19750484A1 Coal cutting and excavation equipment |
| 04/22/1999 | DE19746360A1 Mining machine supporting rack |
| 12/24/1998 | DE19724925A1 Mining process for materials such as phosphates |
| 09/03/1998 | DE19708099A1 Steel link chain for conveyor or extraction systems used in e.g. mining, tunnelling etc. |
| 08/18/1998 | US5795032 Mining machine with multiple propulsion members |
| 04/30/1998 | DE19644904A1 Advancing unit for coal extraction machine moving along conveyor |
| 02/05/1998 | DE19712774A1 Mining machine drive with gears held on axis |
| 01/06/1998 | US5704267 Guide shoe for a cutting machine especially for a drum or disk shearer |
| 12/24/1997 | WO1997048883A1 Mining machine with multiple propulsion members |
| 11/20/1997 | DE19619657A1 Drive station for scraping equipment |
| 09/10/1997 | CN2262098Y Filter for hydraulic main loop of coal cutter |
| 08/19/1997 | US5658085 Toggle securing device for toggle joints in chain conveyors and the like |
| 07/24/1997 | DE19619658A1 Drive station for mining cutter |
| 07/03/1997 | DE19537414A1 Scraper drive for coal mining |
| 06/24/1997 | US5641058 Method and a device for tensioning endless drive belts |
| 04/29/1997 | US5624162 Long-wall mining machine with a working chain |
| 04/24/1997 | DE19538726A1 Feed and guide system for roller loader |
| 03/20/1997 | DE19610935A1 Link chain for conveyors etc. |
| 03/20/1997 | DE19610933A1 Link chain with arrow head |
| 02/11/1997 | US5601341 Drive gear and guide arrangement for a mining machine, in particular a disk shearer |
| 10/10/1996 | DE19513061A1 Chain driven rod drive for underground esp. coal mining |
| 10/02/1996 | CN1132325A Driving gear for use in coal planer or working face transport machine |
| 09/12/1996 | DE19510509C1 Advance and guide system for roller loaders |
| 08/20/1996 | US5547262 Guide rail for scraper conveyor of mining machine |