| 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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| 06/26/2013 | CN103174422A Intelligent monitoring system for coal mining machine |
| 06/26/2013 | CN103174421A Automatic hydraulic rock breaking pick |
| 06/26/2013 | CN103174420A Lurking type composite solid lubrication cutting tooth component of coal cutter and lurking type composite solid lubrication cutting tooth component method |
| 06/26/2013 | CN103174419A Digging machine monitoring device |
| 06/26/2013 | CN103174418A Advanced detection system and method for excavation hazards |
| 06/26/2013 | CN103174417A Rear support mechanism of continuous coal cutter |
| 06/26/2013 | CN102108867B Pickholder system for mining machinery |
| 06/25/2013 | US8469455 Method for controlling a cutting extraction machine |
| 06/20/2013 | DE112011102507T5 Halteblock sowohl für radiale als auch für konische Werkzeugpicken Holding block for both radial and conical tool for picking |
| 06/19/2013 | CN203008956U Random automatic spraying device |
| 06/19/2013 | CN203008905U Low seam mining machine control system and mining machine |
| 06/19/2013 | CN203008904U Coal miner video monitoring device capable of dedusting by wind power |
| 06/19/2013 | CN203008903U Heading machine and anticollision control system thereof |
| 06/19/2013 | CN203008902U Heat-dissipation oil tank of cantilever excavator |
| 06/19/2013 | CN203008901U Connecting piece between roadheader body and walking part as well as roadheader |
| 06/19/2013 | CN103163909A Intelligent heat dissipation system for coal mining machine |
| 06/19/2013 | CN103161466A Abrasion-proof cutting pick and process method thereof |
| 06/19/2013 | CN103161465A Reinforced cutting tooth and manufacture method thereof |
| 06/19/2013 | CN103161464A A forced antiskid mechanism for a coal mining machine |
| 06/19/2013 | CN103161463A Dynamic oiling device used for hydraulic system of coal mining machine |
| 06/19/2013 | CN103161460A Articulated shearer |
| 06/19/2013 | CN101821478B Connector device for trough pans on mining equipment trough pan and assembly component for the same |
| 06/19/2013 | CN101687341B Shank chisel |
| 06/18/2013 | US8465104 Extraction system for mineral extraction and retaining device for a sensor system therefor |
| 06/13/2013 | WO2013083185A1 Method for monitoring an automated sequence of movements of a mining shield used in underground mining |
| 06/12/2013 | EP2601356A1 Rotatable grading pick with debris clearing feature, a tool and block assembly and a road grading machine |
| 06/12/2013 | CN202991048U Wireless remote control device of heading machine |
| 06/12/2013 | CN202991047U Wireless remote control device of hydraulic traction coal mining machine |
| 06/12/2013 | CN202991046U Mine automatic watering and dust removal device |
| 06/12/2013 | CN202991045U Dry fog dust suppression system for downhole heading machine |
| 06/12/2013 | CN202991044U Electric rock drill side-type water supply system |
| 06/12/2013 | CN202991043U Coal gangue split-loading and split-transport device |
| 06/12/2013 | CN202991042U Sealing device of top coal caving reversed loader |
| 06/12/2013 | CN202991041U Spill plate of coal mining machine |
| 06/12/2013 | CN202991040U Scraper chain tensioning compensation device of continuous miner |
| 06/12/2013 | CN202991039U Guiding assembly for long-wall coal shearer and long-wall coal shearer combining mine wall |
| 06/12/2013 | CN202991038U Strengthened cutting tooth |
| 06/12/2013 | CN202991037U Polycrystalline diamond composite pick |
| 06/12/2013 | CN202991036U Guiding chain guard device of coal plough |
| 06/12/2013 | CN202991035U Split-type body frame of heading machine |
| 06/12/2013 | CN202991030U Downhole operation trolley |
| 06/12/2013 | CN202991026U Telescopic cutting arm for heading machine |
| 06/12/2013 | CN103147756A Heading machine memory cutting control system and method thereof |
| 06/12/2013 | CN103147755A Method for determining positions of negative-pressure secondary dust remover nozzle tubes |
| 06/12/2013 | CN103147754A Second-operation rotary table mechanism for heading machines |
| 06/12/2013 | CN103147753A Coal transportation system |
| 06/12/2013 | CN103147752A Water distribution device of cutting motor suspension arm section |
| 06/12/2013 | CN103147751A Water distribution plate used in atomizing system of tunneling machine |
| 06/12/2013 | CN103147750A Cutting part of heading machine |
| 06/12/2013 | CN103147694A Method for manufacturing cutting pick |
| 06/12/2013 | CN101852080B Cutting pick, cutting pick head and manufacturing method thereof |
| 06/11/2013 | US8459751 Percussion tool for a demolishing hammer or the like |
| 06/06/2013 | WO2012156841A3 Apparatus for the milling cutting of rock, minerals or other materials |
| 06/06/2013 | WO2012152874A3 Polycrystalline diamond structure |
| 06/06/2013 | WO2012152848A3 Tip for degradation tool and tool comprising same |
| 06/06/2013 | WO2012152847A3 Pick tool |
| 06/06/2013 | US20130140873 Reduced Volume Cutting Tip and Cutting Bit Incorporating Same |
| 06/06/2013 | DE102011087848A1 Bohrungssicherungsring Bore circlip |
| 06/05/2013 | CN202970714U Dust-free mining machine |
| 06/05/2013 | CN202970713U Efficient foam dust removal device |
| 06/05/2013 | CN202970712U Novel scraper-type double-conveying machine |
| 06/05/2013 | CN202970711U Rake tooth for slusher mucking machine |
| 06/05/2013 | CN202970710U Pick precision forging |
| 06/05/2013 | CN202970709U Automatic hydraulic flexible safety protection device for tail loading feed port |
| 06/05/2013 | CN202970708U Hinge pin shaft pressing device of walking reducer casing of coal winning machine |
| 06/05/2013 | CN202970489U Hard alloy mine spherical tooth |
| 06/05/2013 | CN103133002A Coal mining machine rotary drum rotary speed control method and coal mining machine rotary drum rotary speed control system |
| 06/05/2013 | CN103133001A High-pressure fine-water-mist dust falling device of heading machine |
| 06/05/2013 | CN103133000A Coal cutter gas-water mixing external spray system |
| 06/05/2013 | CN103132999A Coal unloading device of coal cutter |
| 06/05/2013 | CN103132998A Cab module for a mining machine |
| 06/05/2013 | CN103132997A Heading machine and transport machine for heading machine |
| 06/05/2013 | CN103132996A Large inclination angle vertical shearer |
| 06/05/2013 | CN102383800B Dust removing device for tunneling machine |
| 06/05/2013 | CN102116152B Guiding sliding shoe of coal cutter walking part |
| 06/05/2013 | CN101889127B 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 |
| 06/04/2013 | US8454096 High-impact resistant tool |
| 06/01/2013 | CA2797325A1 Cab module for a mining machine |
| 05/29/2013 | CN202954819U External spraying device of heading machine |
| 05/29/2013 | CN202954818U Cutting portion internal spraying device of coal cutter |
| 05/29/2013 | CN202954817U Hard alloy head applied to pickaxe type cutting tooth |
| 05/29/2013 | CN202954816U Cold-assembly low-cutting resistance durable point-attack pick |
| 05/29/2013 | CN202954735U Randomly mobile climbing frame of heading machine |
| 05/29/2013 | CN202951599U Detachable cylinder cooling device for scraper bucket mucking machine |
| 05/29/2013 | CN103122764A Automatic mobile type transient electromagnetic field detection method and device |
| 05/29/2013 | CN103122763A Mine excavating loader |
| 05/28/2013 | US8449041 Grading pick with extended fins |
| 05/28/2013 | US8449040 Shank for an attack tool |
| 05/28/2013 | US8449039 Pick assembly with integrated piston |
| 05/23/2013 | WO2013072419A1 Method for connecting functional elements to a shaft |
| 05/23/2013 | DE102012102458B3 Höhensteuerungssystem für eine Kohlenhobelanlage und Kohlenhobelanlage Height control system for a coal plow plant and coal plow system |
| 05/22/2013 | CN202946164U Remote-control mechanical saw-cutting mining device |
| 05/22/2013 | CN202946163U Remote-control drilling-splitting mining device |
| 05/22/2013 | CN202946162U Sensor device for development machine |
| 05/22/2013 | CN202946161U Spraying device and heading machine |
| 05/22/2013 | CN202946160U Novel scraper pan type mucking machine |
| 05/22/2013 | CN202946159U Shovel plate and continuous miner provided with same |
| 05/22/2013 | CN202946158U Rotary integrated unit and development machine |
| 05/22/2013 | CN202946157U Novel rocker arm cooling system of thin-seam coal mining machine |
| 05/22/2013 | CN202946156U External sensor device of development machine |