| Patents for E21C 25 - Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam (2,629) |
|---|
| 09/28/2011 | CN201991526U 薄煤层采煤机悬臂式截割装置 Cantilever thin seam shearer cutting device |
| 09/28/2011 | CN102200089A Shearer and water treatment system thereof |
| 09/28/2011 | CN102200011A Cutting head type short wall coal mining machine |
| 09/22/2011 | US20110227397 Mining machine with driven disc cutters |
| 09/22/2011 | US20110227396 Mining system |
| 09/21/2011 | CN201982091U 用于采煤机的运输机闭锁装置 Transport locking device for Shearer |
| 09/21/2011 | CN201982090U 一种复合旋切的采掘机 A composite veneer of mining machine |
| 09/15/2011 | US20110221259 Heading machine |
| 09/14/2011 | CN201972702U 一种采煤机滚筒 One kind of shearer drum |
| 09/14/2011 | CN201972701U 一种耐磨损的采煤机滚筒 One kind of wear resistant shearer drum |
| 09/14/2011 | CN102182485A Vehicle-mounted advance support device of cantilever type excavator |
| 09/14/2011 | CN102182477A Mining method for mechanized mining working surface end and corresponding end support bracket |
| 09/14/2011 | CN102182455A Expansion device of hard rock tunneling machine |
| 09/14/2011 | CN101566070B Support of multifunctional scraper conveyor in mine |
| 09/13/2011 | US8016363 Automated excavation machine |
| 09/07/2011 | CN201963307U 一种耙煤机 One kind of rake stoker |
| 09/07/2011 | CN201963306U 一种采煤机截割部离合轴拉手装置 Ministry clutch shaft handle apparatus shearer cutting |
| 09/07/2011 | CN201961401U 一种工程机械及其履带式行走机构 A construction machinery and crawler running gear |
| 09/07/2011 | CN101526000B Coal mining machine |
| 08/31/2011 | CN201953379U 一种新型掘进机 A new roadheader |
| 08/31/2011 | CN102168573A Equipment matching method for fully mechanized mining working surface with large mining height |
| 08/31/2011 | CN102168556A A cutter head containing its motors and gear case |
| 08/31/2011 | CN102168555A Ultralow surface full-hydraulic drill type coal mining machine |
| 08/31/2011 | CN101634224B Heading machine provided with cantilever type front canopy supporting protection device |
| 08/25/2011 | US20110204701 Sleeve with widening taper at rearward end of bore |
| 08/25/2011 | US20110204700 In-situ composite formation of damage tolerant coatings utilizing laser |
| 08/24/2011 | CN201944526U 一种矿山机械及其润滑装置 One kind of mining machinery and lubricating device |
| 08/24/2011 | CN102162360A Drilling and loading machine and drilling-in device thereof |
| 08/23/2011 | US8002360 Adjustable planer system |
| 08/18/2011 | US20110198914 Method and device for working rock |
| 08/17/2011 | CN201934497U 一种滚筒采煤机摇臂与牵引部的铰接减振装置 A hinged damping device traction shearer rocker Ministry |
| 08/17/2011 | CN102155219A Comprehensive dredging machine |
| 08/17/2011 | CN101749015B High pressure water hydraulic pressure balanced sealing system of development machine |
| 08/16/2011 | US7999695 Surface real-time processing of downhole data |
| 08/11/2011 | US20110193399 Full sleeve retainer for step-shank of tool |
| 08/11/2011 | US20110193398 Heading or extraction machine |
| 08/11/2011 | US20110193397 Adaptive Advance Drive Control For Milling Machine |
| 08/10/2011 | CN201924925U 单滚筒爬底板采煤机的箱体结构 Single drum shearer climb floor box structure |
| 08/10/2011 | CN201924924U 一种掘进机及其截割机构 One kind of boring machines and cutting mechanism |
| 08/10/2011 | CN201924923U 一种掘进机及其悬臂工作机构 One kind of boring machine and its working bodies boom |
| 08/10/2011 | CN102146793A Tunneller and cutting mechanism thereof |
| 08/03/2011 | CN201915959U 采煤机 Shearer |
| 08/03/2011 | CN201915958U 一种滚筒采煤机的摇臂滚筒传动结构 Rocker drum shearer of a transmission structure |
| 07/28/2011 | US20110181097 Mining machine with driven disc cutters |
| 07/28/2011 | DE112009002125T5 Kernbrecher mit Staubunterdrückungssystem Core breaker with dust suppression system |
| 07/27/2011 | EP2348189A2 Mining machine with driven disc cutters |
| 07/27/2011 | CN201908654U Cutting part of single-roller floor-based shearer |
| 07/27/2011 | CN102134995A Mining machine with driven disc cutters |
| 07/27/2011 | CN101705819B Anti-sideslipping boring machine and production method of bottom plate of shovel plate thereof |
| 07/22/2011 | CA2728874A1 Miner cutting bit holding apparatus |
| 07/20/2011 | CN102132006A Core breaker with dust suppression system |
| 07/20/2011 | CN101705818B Tunneller capable of performing comprehensive coal mining operations |
| 07/20/2011 | CN101705817B Subaerial comprehensive winning machine |
| 07/13/2011 | CN201896616U Telescopic heading machine convenient for underground transportation |
| 07/13/2011 | CN102124186A Bit holder block with non-rotating wear sleeve |
| 07/13/2011 | CN102121382A Composite rotary cutting mining machine |
| 07/07/2011 | US20110163590 Longwall Equipment Having Vertically Adjustable Disc Shearer Loader Guided on the Face Conveyor |
| 07/07/2011 | US20110163589 Road Milling Machine With Replaceable Milling Drum With Different Cutting Widths |
| 07/06/2011 | EP2340355A1 Method and device for working rock |
| 07/06/2011 | CN201891413U Movable coal retaining device |
| 06/30/2011 | US20110156470 Cutter head containing its motors and gearcase |
| 06/30/2011 | DE112009001889T5 Bithalterblock mit sich nicht drehender Verschleisshülse Bithalterblock with non-rotating wear sleeve |
| 06/29/2011 | CN201884049U Gas drainage and outburst prevention system for high-pressure water jet cutting and drilling interlocking coal seams with ultra-long drilled holes |
| 06/29/2011 | CN201884028U Coal cutter with internal three-ring deceleration transmission mechanism |
| 06/29/2011 | CN102108862A Coal mining equipment and roller electrical speed regulating system |
| 06/24/2011 | CA2726360A1 A cutter head containing its motors and gearcase |
| 06/23/2011 | US20110148177 Automotive Road Milling Machine |
| 06/22/2011 | CN201874585U Mechanically-driven double-disk heading device for header |
| 06/22/2011 | CN201874569U Roadheader-mounted geophysical prospecting drilling machine |
| 06/21/2011 | US7963615 Mining and demolition tool |
| 06/15/2011 | CN201865668U Novel coal cutting machine |
| 06/15/2011 | CN201865667U Controllable granularity road header cutting head |
| 06/15/2011 | CN102095067A Mining machine and lubricating device thereof |
| 06/15/2011 | CN102094663A Machine-mounted multifunctional cantilever supporting machine |
| 06/15/2011 | CN102094647A Safe and efficient fully-mechanized mining method for thin coal seam under two hard conditions |
| 06/15/2011 | CN102094646A Process process for comprehensively mining extra-hard inter-band coal seams with complex texture |
| 06/15/2011 | CN101638983B Coal mining machine with double-power rollers |
| 06/15/2011 | CN101634226B Coal digging machine |
| 06/14/2011 | CA2539268C Thermal rock fragmentation application in narrow vein extraction |
| 06/08/2011 | CN201857975U Supported comprehensive tunnel boring machine |
| 06/08/2011 | CN201857964U Saw-blade type tunnel boring machine |
| 06/01/2011 | CN102080541A Bidirectional cutting method for continuous miner |
| 06/01/2011 | CN101457645B Thick coal seam stepwise full-seam coal mining method |
| 05/26/2011 | US20110121633 Billing System Integrated into a Milling Machine |
| 05/25/2011 | EP2324976A1 Shearer chain and shearer |
| 05/25/2011 | CN201843612U Heavy-duty horizontal-shaft-type cutting cylinder for hard rock boring machine |
| 05/25/2011 | CN201843611U Modularized coal mining machine |
| 05/25/2011 | CN102071936A Roller internal rotation coal cutting method of thin coal seam roller coal cutter |
| 05/25/2011 | CN102071935A Cutting part of heading machine |
| 05/25/2011 | CN102071934A Heading machine and cantilever working mechanism thereof |
| 05/25/2011 | CN101666230B Coal mining method of lengthened front-beam fully-mechanized mining and fully-mechanized top coal carving of three-soft coal seam and equipment |
| 05/19/2011 | US20110115278 Milling Drum For A Construction Machine, Construction Machine As Well As Gearbox Unit For A Milling Drum |
| 05/18/2011 | CN201835829U Cutting part of road header |
| 05/18/2011 | CN102061932A High-pressure small jet coal and gas outburst control device |
| 05/18/2011 | CN102061914A Method for steering a mining machine cutter |
| 05/18/2011 | CN102061913A Modularized coal mining machine |
| 05/12/2011 | US20110109147 Block and sleeve with rotation-inhibiting feature |
| 05/11/2011 | CN201826838U Tyred type vertical claw anti-explosion diesel loader |
| 05/11/2011 | CN201826837U Movable double-platform partitioned four-arm drill carriage for construction of hangwall anchor rods and anchor cables |
| 05/11/2011 | CN201826759U Lifting platform for construction vehicle |