| Patents for E21C 35 - Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups , or (6,127) |
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| 01/12/2011 | CN201705351U Rotary switch frame of electric equipment of rock rake |
| 01/12/2011 | CN101943259A Cooling a ranging arm gear case on a longwall shearer |
| 01/12/2011 | CN101942998A Development machine and floating sealing device thereof |
| 01/06/2011 | US20110001348 Method for Controlling Longwall Operations Using Boundary Layer Recognition |
| 01/05/2011 | DE19982183B4 Maschinensteuerung Machine control |
| 01/05/2011 | DE102009009000B4 Verfahren zur Regelung der Schnitthöhe bei Walzenschrämladern Method for controlling the cutting height at Walzenschrämladern |
| 01/05/2011 | CN201699319U Electric control cabinet of coal winning machine and coal winning machine employing same |
| 01/05/2011 | CN201696846U Lubricating device of coal mining machine rocker |
| 01/05/2011 | CN201696047U Mining equipment and walking device thereof |
| 01/05/2011 | CN201696046U Hydraulic lock of coal mining machine |
| 01/05/2011 | CN201696045U Wedge-shaped connection structure of body portion and traveling portion of heading machine |
| 01/05/2011 | CN201696042U Tunneling machine |
| 01/05/2011 | CN201696041U Double-platform four-arm drilling, loading, conveying and anchoring integrated machine for coal roadways |
| 01/05/2011 | CN101660081B Sparkless hard alloy particle powder material special for conical bit drill |
| 12/30/2010 | US20100327650 Method for Automatically Creating a Defined Face Opening in Longwall Mining Operations |
| 12/30/2010 | DE112008003294T5 Zerkleinerungs-oder Aushubwerkzeug mit einem Einsatz aus einem Wolframcarbid-Hartmetall und einem Ring Crushing or Excavation tool with an insert of a cemented tungsten metal and a ring |
| 12/30/2010 | DE102009026011A1 Verfahren zur Bestimmung der Position oder Lage von Anlagekomponenten in Bergbau-Gewinnungsanlagen und Gewinnungsanlage Method for determining the position or location of plant components in mining production equipment and production plant |
| 12/29/2010 | WO2010149461A2 Maintenance machine for refrigeration units |
| 12/29/2010 | WO2010149315A2 Method for the automated production of a defined face opening by means of slope-assisted radar navigation of the roller of a roller cutter loader |
| 12/29/2010 | WO2010148992A1 Efficiency parameter detecting method and device for hydraulic system, and engineering machine including the device |
| 12/29/2010 | CN201687476U Conveyor groove and conveyor |
| 12/29/2010 | CN201687475U Novel pressing plate structure of coal mining machine |
| 12/29/2010 | CN201687474U Diamond polycrystalline coal mining tooth tunneling gear |
| 12/29/2010 | CN201687473U Height-regulating device for coal winning machine |
| 12/23/2010 | US20100320829 Bit Holder Usable in Bit Blocks Having Either of a Cylindrical or Non-Locking Taper Bore |
| 12/23/2010 | US20100320827 Method for the Controlled Maintaining of a Distance Between the Top Canopy and the Coal Face in Longwall Mining Operations |
| 12/22/2010 | CN201679500U Rotary digging pick |
| 12/22/2010 | CN201679499U Sideslip resistant tunneling machine |
| 12/22/2010 | CN1804373B Cutting tool with nozzle for spraying water on cutter bit |
| 12/22/2010 | CN101922291A Shoveling apparatus with multi-positional shovel |
| 12/22/2010 | CN101922290A Coal-rock interface identification method, identification system and identification probe |
| 12/16/2010 | WO2010075947A9 Method for adjusting an automatic level control of the plane in planing operations in hard coal mining |
| 12/15/2010 | CN201671631U Telescopic shovel plate |
| 12/15/2010 | CN201671630U Double-metal structural pick |
| 12/15/2010 | CN101915097A Machine-mounted tunneling, drilling and anchoring comprehensive integrated operation device |
| 12/15/2010 | CN101915096A Development machine |
| 12/14/2010 | US7850250 Tool body for rotatable tool |
| 12/09/2010 | US20100308641 Mining methods and systems using mobile conveyors |
| 12/09/2010 | US20100308639 Battery Powered Hauling Car Operated by Remote Control |
| 12/08/2010 | EP2052129B1 A shearer loader for underground mining comprising a spray system |
| 12/08/2010 | CN201666152U Ultrasonic impulse deduster for roadheader |
| 12/08/2010 | CN201666151U Negative-pressure atomizing dust-control device for coal mining machine |
| 12/08/2010 | CN201666149U Walking transfer machine |
| 12/08/2010 | CN101413390B Inner atomizing inlet rotary seal structure |
| 12/02/2010 | WO2010136208A1 Wearing element for ground engaging operations with enhanced wear resistance |
| 12/02/2010 | WO2010136207A1 Wear element for earth/rock working operations with enhanced wear resistance |
| 12/02/2010 | US20100301660 Cooling a ranging arm gear case on a longwall shearer |
| 12/02/2010 | CA2762933A1 Wearing element for ground engaging operations with enhanced wear resistance |
| 12/01/2010 | CN201661297U Bridge type coal mining machine |
| 12/01/2010 | CN101899974A Development machine and floating sealing device thereof |
| 12/01/2010 | CN101337345B Tool for mounting boring cutter on bracket |
| 11/25/2010 | US20100295360 Shank Chisel |
| 11/24/2010 | CN201656370U Coal-mining device electric-control box front cover plate positioning structure |
| 11/24/2010 | CN201653731U Eccentric load-bearing capability testing device of coal-mining machine rocker |
| 11/24/2010 | CN201650356U Loader capable of hydraulically drilling rock |
| 11/24/2010 | CN201650331U Onboard temporary supporting device |
| 11/24/2010 | CN201650295U Inner spraying device for coal cutter |
| 11/24/2010 | CN201650294U Push discharge type bucket device |
| 11/24/2010 | CN201650293U Sparkless cutting pick |
| 11/24/2010 | CN201650292U Sparkless cutting pick |
| 11/24/2010 | CN201650291U Sparkless cutting pick |
| 11/24/2010 | CN201650290U Sparkless cutting pick |
| 11/24/2010 | CN201650289U Running track chain non-return inserting claw |
| 11/24/2010 | CN201650288U Roll-wheel supporting structure of TBM first transporting machine |
| 11/24/2010 | CN201650287U Water seal assembly of cantilever section of heading machine |
| 11/24/2010 | CN201650285U Coal mining loader |
| 11/24/2010 | CN201650283U Tunneling and mucking excavator |
| 11/24/2010 | CN201650281U Header cutting mechanism |
| 11/24/2010 | CN201650280U Integrated open cast coal mining machine |
| 11/24/2010 | CN201650110U Novel outburst prevention drilling and loading machine |
| 11/24/2010 | CN101892840A Composite strengthened cutting pick of coal mining machine |
| 11/20/2010 | CA2685783A1 Collapsible cushion |
| 11/18/2010 | WO2010129978A2 Cutting device for a mining machine |
| 11/18/2010 | WO2010129977A2 Cutting tool for a mining machine |
| 11/18/2010 | CA2761529A1 Cutting device for a mining machine |
| 11/18/2010 | CA2761527A1 Cutting tool for a mining machine |
| 11/17/2010 | CN201635764U Mounted connecting mechanism for tunneling machine and second transporter |
| 11/17/2010 | CN201635743U Suspended slip type coal blocking plate |
| 11/17/2010 | CN201635742U Fastening device for plough head of coal plough |
| 11/17/2010 | CN201635741U Insertion plate loading device for tunneller |
| 11/17/2010 | CN201635740U Spindle-end looseness-proof fixing structure |
| 11/17/2010 | CN201635739U Cutting head for cutting part of tunneller |
| 11/17/2010 | CN201635738U Rear supporting arm of cantilever type excavator |
| 11/17/2010 | CN1948712B Connection device |
| 11/17/2010 | CN101889127A Breaking or excavating tool with cemented tungsten carbide insert and ring, material removing machine incorporating such a tool and method of manufacturing such a tool |
| 11/16/2010 | US7832809 Degradation assembly shield |
| 11/16/2010 | US7832808 Tool holder sleeve |
| 11/11/2010 | DE10261159C5 Meißelhalter Toolholder |
| 11/10/2010 | EP2247826A1 Method for the controlled maintaining of a distance between the roof and the face in longwall mining operations |
| 11/10/2010 | EP2247825A1 Method for automatically creating a defined face opening in plow operations in coal mining |
| 11/10/2010 | EP2247824A1 Method for automatically creating a defined face opening in longwall coal mining operations |
| 11/10/2010 | CN201627583U Integrated pickaxe-shaped cutting bit |
| 11/10/2010 | CN201627582U Split pick-type bit |
| 11/10/2010 | CN201627581U Cutting head short-wall coal mining machine |
| 11/10/2010 | CN101883911A Breaking or excavating tool with cemented tungsten carbide insert and ring, material removing machine incorporating such a tool and method of manufacturing such a tool |
| 11/10/2010 | CN101881166A Mining device and walking device thereof |
| 11/04/2010 | US20100276985 Noise reduced continuous miner |
| 11/04/2010 | US20100276983 Integration of an in-situ recovery operation with a mining operation |
| 11/04/2010 | US20100276982 Method and apparatus for maintaining longwall face alignment |
| 11/03/2010 | CN201620892U High-wear-resistant composite dipper tooth |