| 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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| 07/27/2011 | CN201908659U Dustproof structure of cutting part of heading machine |
| 07/27/2011 | CN201908658U Coal mining machine and guiding skid shoe thereof |
| 07/27/2011 | CN201908657U Continuous steering cushioning device for coal mining machine |
| 07/27/2011 | CN201908656U Digging and protecting all-in-one machine and telescopic boom thereof |
| 07/27/2011 | CN201908655U Coal mining machine and guide skid shoe component |
| 07/27/2011 | CN201908575U Drill bit with V-shaped powder discharging groove |
| 07/27/2011 | CN102134996A Safety type active explosion suppression heading machine |
| 07/27/2011 | CN101705819B Anti-sideslipping boring machine and production method of bottom plate of shovel plate thereof |
| 07/21/2011 | WO2011054334A4 Milling drum |
| 07/21/2011 | US20110175430 Pick tool and method for making same |
| 07/20/2011 | CN201902210U Lapping device of road header and belt conveyor |
| 07/20/2011 | CN201902209U Liftable rock flying-preventive device at lower outlet of large-inclination fully-mechanized working surface |
| 07/20/2011 | CN102132007A Cutting tool with water injection to cutting bit shank |
| 07/20/2011 | CN102128032A Tramcar for storing and transferring rocks |
| 07/20/2011 | CN101705818B Tunneller capable of performing comprehensive coal mining operations |
| 07/20/2011 | CN101705817B Subaerial comprehensive winning machine |
| 07/20/2011 | CN101696631B Wet type negative pressure dust removing device of continuous coal mining machine |
| 07/20/2011 | CN101608546B Processing technology for prolonging service life of guiding slide shoes |
| 07/20/2011 | CN101555792B Gate-type nozzle of excavator with internal spraying |
| 07/13/2011 | EP2342422A1 Method and apparatus for processing a sized ore feed |
| 07/13/2011 | CN201896617U Coal charging machinery used on blasting driving face of coal mine |
| 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 | CN102121383A Efficient cutting tooth |
| 07/13/2011 | CN102121382A Composite rotary cutting mining machine |
| 07/13/2011 | CN102121351A Efficient tool bit with positioning hole, positioning groove or composite positioning hole |
| 07/07/2011 | US20110163591 Cutting pick and mounting assembly |
| 07/07/2011 | US20110163590 Longwall Equipment Having Vertically Adjustable Disc Shearer Loader Guided on the Face Conveyor |
| 07/06/2011 | CN201891416U Rotary air-suction cover of dust control unit of development machine |
| 07/06/2011 | CN201891415U Adjusting bracket for dust remover of development machine |
| 07/06/2011 | CN201891414U Supporting dust removing system device of heading machine |
| 07/06/2011 | CN102116154A Built-in spraying water channel in road header |
| 07/06/2011 | CN102116153A Coal mining machine and guide gliders thereof |
| 07/06/2011 | CN102116152A Guiding sliding shoe of coal cutter walking part |
| 07/06/2011 | CN101258303B Arrangement for extracting extraction products in underground extraction operations in caving |
| 06/30/2011 | DE112009001889T5 Bithalterblock mit sich nicht drehender Verschleisshülse Bithalterblock with non-rotating wear sleeve |
| 06/29/2011 | CN201884030U Reclaiming conveyer capable of turning at corner |
| 06/29/2011 | CN102108867A Pickholder system for mining machinery |
| 06/29/2011 | CN102108866A Novel-structure wear-resistant bit tooth |
| 06/29/2011 | CN102108864A Coal mining machine and guiding skid shoe component |
| 06/29/2011 | CN101614123B Sweeper for lower chain passage of carriage of coal planer |
| 06/23/2011 | US20110148179 Bit Holder And Base Part For Receiving A Bit Holder |
| 06/23/2011 | US20110148178 Bit Holder And Base Part |
| 06/22/2011 | EP2336489A2 Pick holder and base section for holding a pick holder |
| 06/22/2011 | EP2336488A2 Pick holder and base section |
| 06/22/2011 | DE102009059189A1 Meißelhalter und Basisteil zur Aufnahme eines Meißelhalters Bit holder and base part to receive a chisel holder |
| 06/22/2011 | DE102009059188A1 Meißelhalter und Basisteil Bit holder and base |
| 06/22/2011 | CN201878141U Bluetooth transmission device for coal mining machine |
| 06/22/2011 | CN201876728U Digitized and unmanned full-mechanized mining face control system |
| 06/22/2011 | CN201874596U Roadheader-borne hydraulic multifunctional temporary supporting machine |
| 06/22/2011 | CN201874585U Mechanically-driven double-disk heading device for header |
| 06/22/2011 | CN201874579U Header-borne foam dust-removing system |
| 06/22/2011 | CN201874578U First conveying system of heading machine |
| 06/22/2011 | CN201874577U Driving device for shovel board star wheel of roadheader |
| 06/22/2011 | CN201874576U Shovel plate supporting mechanism used for small-sized tunnel boring machine |
| 06/22/2011 | CN201874575U Plane connecting and positioning structure for header |
| 06/22/2011 | CN201874574U Hydraulic circuit mechanism for small-sized tunneling machine |
| 06/22/2011 | CN201874573U Positioning device for traveling box of coal mining machine |
| 06/22/2011 | CN201874572U Pipe-cable tensioning mechanism for coal-mining machines |
| 06/22/2011 | CN102102517A Pick holder and base section for holding a pick holder |
| 06/22/2011 | CN102102516A Pick holder and base section |
| 06/21/2011 | US7963617 Degradation assembly |
| 06/21/2011 | US7963616 Rotary cutting pick |
| 06/21/2011 | US7963615 Mining and demolition tool |
| 06/17/2011 | CA2722823A1 Bit holder and base part |
| 06/17/2011 | CA2722699A1 Bit holder and base part for receiving a bit holder |
| 06/16/2011 | US20110138607 Connection arrangements for mine conveyor sections |
| 06/16/2011 | DE112009001118T5 Hülse mit Erweiterung am hinteren Ende der Bohrung Sleeve with enlargement at the rear end of the bore |
| 06/16/2011 | DE102007051911B4 Schaftmeißel Studcutter |
| 06/14/2011 | US7959234 Rotatable cutting tool with superhard cutting member |
| 06/09/2011 | DE102009030130B9 Verfahren zur automatisierten Herstellung einer definierten Streböffnung durch neigungsgestützte Radarnavigation der Walze bei einem Walzenschrämlader und eine Vorrichtung hierfür Method for the automated production of a longwall opening defined by passion-based radar navigation of the roll at a shearer and an apparatus therefor |
| 06/08/2011 | CN201860417U Novel wireless mobile video monitoring device of coal-winning machine |
| 06/08/2011 | CN201857970U Pick-shaped cutter with hard alloy tool bit |
| 06/08/2011 | CN201857969U Abrasion-resistant cutter |
| 06/08/2011 | CN201857968U Pickax-shaped cutting pick |
| 06/08/2011 | CN201857967U Abrasion-resistant pick-shaped cutter preventing bit from shedding |
| 06/08/2011 | CN201857966U Cutter |
| 06/08/2011 | CN201857965U Anti-slip device |
| 06/08/2011 | CN201857964U Saw-blade type tunnel boring machine |
| 06/08/2011 | CN201855756U Atomizing spray nozzle for drum of shearer |
| 06/08/2011 | CN101395341B A holder for holding a tooth on a body of a cutting blade or grinding drum for cutting or grinding rock or hard earth formations |
| 06/07/2011 | US7954904 Shearer loader for underground mining comprising a spray system |
| 06/03/2011 | WO2011006181A3 Advancing machine |
| 06/01/2011 | DE102009047294A1 Method for operating milling device, particularly road mill for removal of material, particularly for finishing of pavements or for removal of stones, involves rotating chisel-carrier provided with multiple chisels around its rotation axis |
| 06/01/2011 | DE102006038939B4 Walzenlader für den Untertagebergbau Shearer loader for underground mining |
| 06/01/2011 | CN201851122U Rack type hydraulic pressure belt tail propelling device |
| 06/01/2011 | CN201851121U Welding-free cutting pick |
| 05/31/2011 | US7950746 Attack tool for degrading materials |
| 05/31/2011 | US7950745 Streamlining bit assemblies for road milling, mining and trenching equipment |
| 05/26/2011 | WO2010122466A3 Bit arrangement for a mining plough, and mining plough for plough systems |
| 05/26/2011 | WO2010122465A3 Mining plough for plough systems and plough system for inclined formation |
| 05/25/2011 | CN201843616U Intelligent heading machine |
| 05/25/2011 | CN201843615U Cutting bit with chip groove |
| 05/25/2011 | CN201843614U Novel visible and controllable ergonomic driver console for boring machine |
| 05/25/2011 | CN102071939A High-wear-resistance cutting pick |
| 05/25/2011 | CN102071938A Coal cutter with internal three-ring reducing transmission mechanism |
| 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 |
| 05/24/2011 | US7946657 Retention for an insert |
| 05/24/2011 | US7946656 Retention system |