| Patents for E21C 29 - Propulsion of machines for slitting or completely freeing the mineral from the seam (839) |
|---|
| 09/07/2011 | EP2115271B1 Guide shoe for a roller-type loader and wear inserts for guide shoes |
| 09/07/2011 | CN101526000B Coal mining machine |
| 08/31/2011 | CN102168557A Spinning coal mining machine |
| 08/30/2011 | US8006954 Adjustable cable puller |
| 08/17/2011 | CN201934098U 一种采煤机行走箱结构 One kind of walking box structure Shearer |
| 08/17/2011 | CN102152791A Toothed bar transporting system with the improved toothed bar for the gutter line connection |
| 08/17/2011 | CN102152790A Rack bar haulage system with an improved rackbar to line pan connection |
| 08/10/2011 | EP2188197B1 Extraction device, particularly for mining, and method for controlling the extraction device |
| 07/28/2011 | US20110181096 Rack bar haulage system with an improved rackbar to line pan connection |
| 07/28/2011 | US20110181095 Rack bar haulage system with an improved rackbar to line pan connection |
| 07/27/2011 | CN201908658U Coal mining machine and guiding skid shoe thereof |
| 07/27/2011 | CN201908655U Coal mining machine and guide skid shoe component |
| 07/20/2011 | CN101705817B Subaerial comprehensive winning machine |
| 07/06/2011 | CN102116153A Coal mining machine and guide gliders thereof |
| 07/06/2011 | CN102116152A Guiding sliding shoe of coal cutter walking part |
| 06/29/2011 | CN102108864A Coal mining machine and guiding skid shoe component |
| 06/16/2011 | WO2010113060A3 Rack arrangement for underground winning installations and bearing bracket therefor |
| 06/15/2011 | CN201865669U Coal mining machine and coal mining machine supporter thereof |
| 06/08/2011 | CN201857975U Supported comprehensive tunnel boring machine |
| 06/02/2011 | US20110127475 Cable Guide With Automatic Cable Release |
| 05/26/2011 | WO2010122465A3 Mining plough for plough systems and plough system for inclined formation |
| 05/25/2011 | CN101096910B Plane box and drive station comprising a machine frame and the plane box |
| 05/18/2011 | CN102061915A Coal mining machine and coal mining machine supporting device |
| 04/28/2011 | US20110095595 Chain guide for a driving chain of a mining machine |
| 04/28/2011 | DE202011003248U1 Hobelvorrichtung Planer |
| 04/27/2011 | CN201810312U Tunnel mining machine |
| 04/20/2011 | CN201802400U Drilling milling and beam assembling all-in-one machine for coal roadway |
| 04/20/2011 | CN102022122A Support-type comprehensive tunneler |
| 04/19/2011 | US7926788 Conduit attachment system for a cable puller |
| 04/14/2011 | WO2011042871A2 Feed system for an underground winning machine, rack bar and drive sprocket therefor |
| 04/13/2011 | CN102016229A Chain guide for a driving chain of a mining machine |
| 04/06/2011 | CN201786359U Long-stroke pipeline propulsion device |
| 03/23/2011 | CN201771498U Oiling and exhaust device for shearer walk part |
| 03/23/2011 | CN201771497U Coal mining machine driving chain safety protective device |
| 03/23/2011 | CN201771496U Hydraulic tracting system for shearer driven by load sensitive pump |
| 03/23/2011 | CN101270661B Mine explosion-proof coal rock full hydraulic pulverizing development machine |
| 03/16/2011 | CN101985878A Tunnel mining machine |
| 02/24/2011 | DE202009013326U1 Vorschubsystem für Bergbau-Gewinnungsmaschine, Triebstockstange und Antriebszahnrad hierfür Feeding system for mining extraction machine, rack and pinion rack and pinion drive for this |
| 02/23/2011 | EP2286064A2 Chain guide for a driving chain of a mining machine |
| 02/16/2011 | CN201747373U Wear guiding slide shoe of additional wear plate for coal mining machine |
| 02/16/2011 | CN201747372U Retreat prevention back support device |
| 02/09/2011 | CN201738922U Floor-based shearer |
| 01/27/2011 | WO2011010258A2 Rack and pinion arrangement for a mining extraction machine and rack and pinion rod therefor |
| 01/19/2011 | CN1915773B Chain transmission or steering device and the chain or chain wheel used therein |
| 01/13/2011 | WO2010117566A3 Wire pull assembly |
| 01/05/2011 | DE102009009000B4 Verfahren zur Regelung der Schnitthöhe bei Walzenschrämladern Method for controlling the cutting height at Walzenschrämladern |
| 01/05/2011 | CN201696043U Continuous coal mining machine and travelling part thereof |
| 12/30/2010 | DE202009005046U1 Triebstockanordnung für Bergbau-Gewinnungsmaschine und Triebstockstange hierfür Drive arrangement for mining mining machine and rack and pinion rod for this |
| 12/23/2010 | US20100320828 Drive station for an underground plough system and method for repairing recovery ploughs |
| 12/15/2010 | CN201671628U Roadheader boosting mechanism |
| 12/08/2010 | CN101906967A Floor-based shearer |
| 11/24/2010 | CN201650280U Integrated open cast coal mining machine |
| 11/16/2010 | US7832709 Wire pulling apparatus |
| 11/10/2010 | CN101881164A Wear-resistant device of running part of continuous miner |
| 11/10/2010 | CN101881163A Continuous miner and running part thereof |
| 10/28/2010 | CA2758020A1 Mining plough for plough systems and plough system for inclined formation |
| 10/21/2010 | US20100263569 Carriage for a recovery plough |
| 10/14/2010 | WO2010117566A2 Wire pull assembly |
| 10/07/2010 | WO2010113060A2 Rack arrangement for underground winning installations and bearing bracket therefor |
| 10/06/2010 | CN201599032U 一种采矿机械及其行走架 One kind of mining machinery and walking frame |
| 10/06/2010 | CN201599031U 一种薄煤层采煤机支撑平衡装置 Support of a thin coal seam shearer balancing device |
| 09/29/2010 | CN201593423U Guide sliding shoe device |
| 09/22/2010 | CN201588629U External traction device of low seam mining machine |
| 09/09/2010 | DE202009002021U1 Triebstockanordnung für Bergbaugewinnungsanlagen und Lagerkonsole hierfür Drive arrangement for mining and extraction plants bearing bracket therefor |
| 09/08/2010 | CN201574752U Continuous coal mining machine with integrally preposed operating room |
| 08/26/2010 | DE102009009000A1 Verfahren zur Regelung der Schnitthöhe bei Walzenschrämladern Method for controlling the cutting height at Walzenschrämladern |
| 08/04/2010 | CN101793148A Mining machine and walking frame thereof |
| 07/07/2010 | CN201521300U Crawler frame with oil box of continuous miner |
| 07/07/2010 | CN201521299U Hydraulic winch auxiliary traction device of road header |
| 07/07/2010 | CN201521298U Retractable push-pull device of road header |
| 07/07/2010 | CN101772619A Extraction device, particularly for mining, and method for controlling the extraction device |
| 06/30/2010 | CN101761605A Link chain |
| 06/22/2010 | US7740230 Pig for installing a cable in a conduit |
| 06/17/2010 | US20100148566 All-conditions tunnel boring machine |
| 06/16/2010 | CN201507310U Digger traveling mechanism |
| 06/16/2010 | CN101737043A Auxiliary side traveling mechanism of tunnelling machine |
| 06/16/2010 | CN101737042A Auxiliary top traveling mechanism of tunneling machine |
| 06/08/2010 | US7731298 Shearer-loader drive subassembly and guide shoe for it |
| 05/26/2010 | EP2188197A2 Extraction device, particularly for mining, and method for controlling the extraction device |
| 05/26/2010 | CN201486556U Relocation and boosting device and tunneling machine employing the same |
| 05/19/2010 | CN101109282B Tunneling machine |
| 05/19/2010 | CN101050703B Underground continuous tunnelling machine |
| 05/12/2010 | CN201460884U Steeply sloping seam coal mining machine |
| 05/12/2010 | CN101705817A Subaerial comprehensive winning machine |
| 05/11/2010 | US7712726 Machine for pulling wire through a conduit |
| 03/31/2010 | CN101688444A Drive station for underground plough system, in particular coal plough system and method of repairing recovery ploughs |
| 03/17/2010 | CN201424939Y Improved coal road boring machine |
| 03/10/2010 | CN100593626C Track-mounted full-hydraulic tunnel drilling rig |
| 03/03/2010 | CN101660409A Driving speed reducing device |
| 02/17/2010 | CN201407067Y Coal mine underground explosion-proof multifunctional vehicle |
| 02/10/2010 | CN201401167Y Hydraulic tunnel drilling machine |
| 02/10/2010 | CN201401166Y Drill loader |
| 02/03/2010 | CN101638985A Excavator provided with auxiliary traction device of hydraulic winch |
| 01/28/2010 | US20100019563 Guide shoe for a roller-type loader and wear inserts for guide shoes |
| 01/06/2010 | CN100577985C Shortwall mining forklift in underground mine |
| 12/17/2009 | WO2009130667A3 Chain guide for a driving chain of a mining machine |
| 12/02/2009 | CN101595275A Guide shoe for a roller-type loader and wear inserts for guide shoes |
| 12/02/2009 | CN100564800C Chain guide structure of mining machine |
| 11/11/2009 | EP2115271A1 Guide shoe for a roller-type loader and wear inserts for guide shoes |
| 10/29/2009 | WO2009130667A2 Chain guide for a driving chain of a mining machine |