| 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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| 09/04/2012 | CA2770084A1 Core breaker for a mining machine |
| 09/04/2012 | CA2765583A1 Polygonal shield washer |
| 08/30/2012 | DE112010003725T5 Drehbares Schneidwerkzeug mit hartem Schneidglied The rotary cutting tool with a hard cutting member |
| 08/30/2012 | CA2827914A1 Insert and degradation assembly |
| 08/29/2012 | EP2491228A2 Round shaft bit with a retaining sleeve |
| 08/29/2012 | CN202402485U Shaft sleeve used in rocker arm of coal cutter |
| 08/29/2012 | CN202402035U Device for collecting dust coal |
| 08/29/2012 | CN202402034U Self-moving stepping device used for tunneling |
| 08/29/2012 | CN202402033U Collection device for shovel plate of heading machine |
| 08/29/2012 | CN202402032U Coal unloading device of coal cutter |
| 08/29/2012 | CN202402031U T-shaped guide slot plug-in sliding shoe rack |
| 08/29/2012 | CN102650209A Tunneling machine |
| 08/23/2012 | DE202011050143U1 Gewinnungseinrichtung zum Abbau von flözartig oder massiv abgelagerten mineralischen Materialien und Gewinnungsmaschine hierfür Obtaining means for reducing flözartig or solid deposited mineral materials and mining machine for this purpose |
| 08/22/2012 | EP2489830A2 Mineral winning pick, pick box, and combination |
| 08/22/2012 | CN202391430U Dust removal device for fully-mechanized heading |
| 08/22/2012 | CN202391429U Mineral particle size control device for heading machine |
| 08/22/2012 | CN202391428U Lever type constant support device for tunneling equipment |
| 08/22/2012 | CN202391427U Temporary support and top plate and bottom plate supporting device of rock-roadway tunneling machine |
| 08/22/2012 | CN202391425U Rotary-percussion coal mining machine |
| 08/22/2012 | CN202390033U Coal mining machine pipe cable dragging device |
| 08/22/2012 | CN102644463A Pin rail with variable pitch |
| 08/22/2012 | CN102644462A Mineral mining cutting pick, cutting pick seat, and assembly thereof |
| 08/21/2012 | CA2650811C Cutting tool and method of assembling the cutting tool |
| 08/17/2012 | CA2768875A1 Mineral winning pick, pick box, and combination |
| 08/16/2012 | DE102010038016B4 Mischersteg für einen Stabilisierer/Recycler Mixer stage for a stabilizer / recycler |
| 08/15/2012 | CN202381454U Coal mining machine with wide inclined angle and oil absorbing device thereof |
| 08/15/2012 | CN202381094U Remote control system for bidirectional mine |
| 08/15/2012 | CN202381093U Device for assisting heading machine to go up and down mountain with heavy grade |
| 08/15/2012 | CN102635774A Manual reversing system |
| 08/15/2012 | CN102635355A Cutting part of tunneling machine |
| 08/15/2012 | CN102108864B Coal mining machine and guiding skid shoe component |
| 08/08/2012 | CN202370520U External atomizing nozzle of fully-mechanized road header |
| 08/08/2012 | CN202370519U Installation structure for dedusting fan of comprehensive heading machine |
| 08/08/2012 | CN202370518U Pickaback temporary support device applied to low coal mine laneway |
| 08/08/2012 | CN202370517U Anti-explosion installation mechanism for speed measuring positioner device of coal mining machine |
| 08/08/2012 | CN202370516U Mine heading machine |
| 08/08/2012 | CN102628362A Automatic working face complete equipment for thin seam drum shearer |
| 08/08/2012 | CN102628361A Tunneling machine and second conveyer revolving structure thereof |
| 08/08/2012 | CN101975063B Laser guided positioning and orientation device and method of roadheader |
| 08/08/2012 | CN101573508B Method for identifying blockages in sprinkler devices and apparatus for carrying out this method |
| 08/07/2012 | CA2541718C Boring rig |
| 08/01/2012 | CN202360101U External spraying device of cantilever type development machine |
| 08/01/2012 | CN202360100U Coal mining machine and external spraying device thereof |
| 08/01/2012 | CN202360099U Rolling material raking device |
| 08/01/2012 | CN202360098U High-abrasion-resistance and spark-free knife-shaped drilling cutting tool |
| 08/01/2012 | CN202360097U Water-cooled cutting arm for heading machines |
| 08/01/2012 | CN202360096U Small-friction magnetic-repulsion fully-mechanized coal mining device |
| 08/01/2012 | CN202360095U Waterproof structure of spray system in heading machine |
| 08/01/2012 | CN202360094U Sliding heading machine |
| 08/01/2012 | CN202360093U High-efficiency clumpy coal shovel |
| 08/01/2012 | CN202357863U Articulated-wheel loader for ultra-low mines |
| 08/01/2012 | CN102619511A Working-face automated integrated control system for thin seam drum shearers |
| 08/01/2012 | CN102619510A Adjustable jetting support for dust control of comprehensive mechanized excavation surface of mine |
| 08/01/2012 | CN102619509A Adjustable scraper for scraper loader |
| 08/01/2012 | CN102619508A Rope supporting mechanism capable of preventing steel wire rope from drooping for scraper loader |
| 08/01/2012 | CN102619507A Chute connecting and fastening device for scraper loader |
| 07/26/2012 | DE102011056363A1 Polygonförmige werkzeugpicke aus carbid Polygon tool peck of carbide |
| 07/26/2012 | DE102011000314A1 Method for dismantling round shank chisel of milling device from receiving bore of chisel holder, involves moving chisel with clamping sleeve towards longitudinal axis relative to support plate, to displace sleeve in plate opening |
| 07/25/2012 | CN202348283U Abrasion-proof cutting pick |
| 07/25/2012 | CN202348282U Reinforced cutting tooth |
| 07/25/2012 | CN202348281U Starting alarm device for continuous miner |
| 07/25/2012 | CN202348280U Safe shed for medium-length hole trolley |
| 07/25/2012 | CN202348278U Loading mechanism for cantilever type tunnelling machine |
| 07/25/2012 | CN202348277U Coal cutter rotary drum for cutting hard dirt band |
| 07/25/2012 | CN102606674A Damping device and engineering mechanical equipment |
| 07/25/2012 | CN102606158A Novel low coal seam coal mine underground mining complete equipment |
| 07/25/2012 | CN102606153A Fully sealed coal roadway tunneling and anchoring synchronous machine |
| 07/25/2012 | CN102606152A Novel quick digging and anchoring integrated machine for rectangular coal roadway |
| 07/21/2012 | CA2764767A1 Method of controlling a miner to cause wobble in the cutting heads |
| 07/19/2012 | WO2011048006A3 Pick, in particular, a round shaft pick |
| 07/19/2012 | US20120181845 Dual Slotted Holder Body for Removal Tool Access |
| 07/18/2012 | CN202338345U 矿用截齿 Mine picks |
| 07/18/2012 | CN202338344U 采煤机控制光缆系统 Shearer control cable system |
| 07/18/2012 | CN202338341U 急倾斜极薄煤层无人工作面的采煤装置 Steeply inclined thin seam mining equipment unattended Face |
| 07/18/2012 | CN102589514A Heading machine pose parameter measuring device and method thereof |
| 07/18/2012 | CN102587911A Tunneling control system and method for tunneling machine and tunneling machine |
| 07/18/2012 | CN102587910A Debugging method of automatic working surface device of thin coal seam drum shearer |
| 07/18/2012 | CN102587909A Watering and dust removal device for fully-mechanized excavation working surface |
| 07/18/2012 | CN102587908A Lateral narrow-array type novel slag removing machine in conveying trough mechanism |
| 07/18/2012 | CN102587907A Two-arm gangue discharge system |
| 07/18/2012 | CN102587906A Development machine |
| 07/18/2012 | CN102587905A Mine tunneller |
| 07/18/2012 | CN102587903A Comprehensive tunneling system for stone drift |
| 07/18/2012 | CN102587902A Coal mining machine |
| 07/18/2012 | CN102587901A Cutting device of roadheader |
| 07/18/2012 | CN101994511B Construction technique for cutting and splitting rectangle grooves of railway and road tunnel |
| 07/12/2012 | US20120175939 Bit holding system with an opening for removal of broken bits |
| 07/12/2012 | DE102012100181A1 Meissel-Halterungssystem mit einer Öffnung zur Entnahme von zerbrochenen Meisseln Chisel holder with an opening system for removal of broken Chiseling |
| 07/11/2012 | CN202325519U 无人工作面震动还原系统 No Face vibration reduction system |
| 07/11/2012 | CN202325518U Cooling and spraying systems integrated module of coal mining machines |
| 07/11/2012 | CN202325517U 刮板输送机机头内置喷雾装置 Built-in scraper conveyor nose spray device |
| 07/11/2012 | CN202325516U Safety protective device for material groove of stacking-raking machine |
| 07/11/2012 | CN202325515U 一种用于p系列耙斗装岩机中牵引耙斗钢丝绳的自锁紧机构 A p series rock loader bucket rake rake bucket traction rope for self-locking mechanism |
| 07/11/2012 | CN202325514U 一种用于耙斗装岩机的可调式卡轨器 A rock loader bucket rake adjustable rail card |
| 07/11/2012 | CN202325513U 自动防跑车式装岩机 Automatic anti-car-style rock loader |
| 07/11/2012 | CN202325512U Blasting-mining machine-loading scraper conveyor middle groove |
| 07/11/2012 | CN202325511U 一种采煤机滚筒专用的楔型截齿结构 One kind of special wedge shearer drum cutter structure |
| 07/11/2012 | CN202325510U 棱形切割机头 Angled cutting head |
| 07/11/2012 | CN202325509U Forced antiskid mechanism for coal mining machine |
| 07/11/2012 | CN202325508U 装煤机临时支护支架 Coal loader temporary support bracket |