| Patents for E21C 27 - Machines which completely free the mineral from the seam (1,602) |
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| 03/26/2014 | CN103670409A Lump breaker for mining machine |
| 03/21/2014 | CA2828008A1 Rope shovel |
| 03/19/2014 | CN203488179U Multifunctional coal winning machine |
| 03/13/2014 | US20140070599 Mining installation for extracting seam-type or mass-deposit mineral materials, and mining machine for the same |
| 03/12/2014 | CN203475494U Rushing and catching machine |
| 03/06/2014 | DE112012002135T5 Vorrichtung für die fräsende Bearbeitung von Gestein, Mineralien oder anderen Materialien Device for milling treatment of rock, minerals or other materials |
| 03/05/2014 | CN203463018U Drilling tool for boulder yield auger coal mining machine |
| 02/27/2014 | WO2013110104A3 Tunnelling or extraction machine with an anchor-setting device and support manipulator or supporting device |
| 02/27/2014 | US20140054949 Automotive Milling Machine, As Well As Method For Steering An Automotive Milling Machine |
| 02/17/2014 | DE202012104441U1 Gewinnungsanlage für die Mineraliengewinnung, Gewinnungsmaschine und Zugschlitten hierfür Recovery plant for mineral extraction, mining machine and pull carriage therefor |
| 02/13/2014 | WO2014023086A2 Impact head-centralizing method by means of heightening and/or widening back recess and a device for centralizing impact head by means of heightening and/or widening back recess that implements said method |
| 02/13/2014 | WO2014023085A1 Multi-point guidance support method for reciprocating impact machine and reciprocating impact machine device having multi-point guidance support that implements said method |
| 02/13/2014 | WO2013021282A3 Rotary cutter drum |
| 02/13/2014 | DE112012002132T5 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 |
| 02/13/2014 | DE112012002105T5 Mobile Bergbaumaschine sowie Verfahren zum Auffahren von Tunneln, Strecken oder Schächten, insbesondere in Hartgestein Mobile Mining Equipment and methods for boring tunnels, tracks or wells, especially in hard rock |
| 02/12/2014 | CN103573266A Crushing hammer of hydraulic machine |
| 02/06/2014 | US20140037414 Rope shovel |
| 02/05/2014 | CN103562496A Mining installation for extracting seam-type or mass-deposit mineral materials, and mining machine for the same |
| 02/05/2014 | CN103562495A Apparatus for the milling cutting of rock, minerals or other materials |
| 02/05/2014 | CN103556997A Thin-coal-seam coal mining machine |
| 01/29/2014 | CN102080543B Cobalt crust stripping shovel |
| 01/22/2014 | CN203403879U Crushing and loading integrated electric pick locomotive for underground mining |
| 01/22/2014 | CN103534439A Apparatus for the milling cutting of rock, minerals or other materials |
| 01/22/2014 | CN103527190A Impact crushing device in tail beam of top coal caving hydraulic support |
| 01/22/2014 | CN103527098A Multi-top special-shaped structure alloy tooth |
| 01/21/2014 | US8632134 Carriage for a recovery plough |
| 01/15/2014 | CN103510954A Method used for reciprocating impact excavation by arranging discharge port for discharging, and reciprocating impact excavator used for implementing method by arranging discharge pot for discharging |
| 01/15/2014 | CN102635354B Five-drill air inlet and outlet type coal mining machine |
| 01/09/2014 | CA2820185A1 Bail assembly |
| 01/08/2014 | CN203383820U Unmanned automatic mining system of working face of coal plough |
| 01/08/2014 | CN103498673A Method and apparatus for converting rotary motion into reciprocating impact motion |
| 01/07/2014 | US8622481 Fiber optic cable protection in a mining system |
| 01/03/2014 | WO2014000417A1 Method of reciprocating impact excavation with discharge cavity provided for discharge and reciprocating impact excavator with discharge cavity provided for discharge implementing same |
| 01/01/2014 | CN103485813A Raking device of coal mining shielding support |
| 01/01/2014 | CN103485786A Steeply inclined coal seam strike long-wall mechanization mining method |
| 01/01/2014 | CN103485381A Percussive grabbing machine |
| 01/01/2014 | CN103481247A Cutting bit with hard cutting tip centering and braze joint control feature |
| 12/31/2013 | US8616656 Ploughing device for mining and plough body for said device |
| 12/25/2013 | CN103470255A Five-bit spiral-drill coal mining device convenient for switching drilling rods |
| 12/18/2013 | CN103459771A Conveyor system for continuous surface mining |
| 12/17/2013 | US8608248 Method for controlling longwall operations using boundary layer recognition |
| 12/11/2013 | CN203335076U Coal planing cutter of coal planer |
| 12/11/2013 | CN203335075U Fully-mechanized-mining planning and transporting machine set |
| 12/11/2013 | CN203335074U Water-spraying punching-shovel coal mining machine |
| 12/11/2013 | CN203335073U Fully-mechanized-mining coal drilling unit and fully-mechanized-mining coal drilling machine |
| 12/05/2013 | WO2013143658A3 Mining plow |
| 12/04/2013 | CN103422860A Unmanned automatic working face exploitation system of coal plough |
| 12/04/2013 | CN103422855A Hydraulic hammer drill rod |
| 12/04/2013 | CN103422854A longwall mining machine and a linepan section |
| 12/04/2013 | CN102392639B Hydraulic rock digging vehicle |
| 11/27/2013 | CN103410508A Forcible cutter relieving device of coal planer |
| 11/27/2013 | CN102071937B Multi-metal sulfide mining shovel |
| 11/21/2013 | WO2013170630A1 Reciprocating percussive digging-loading machine |
| 11/21/2013 | WO2013170629A1 High-efficiency mining method for percussing falling-materials without trapping materials and high-efficiency mining machine for percussing falling-materials without trapping materials |
| 11/21/2013 | WO2013170628A1 Small-resistance high-efficiency mining device with multiple layers of percussion heads |
| 11/21/2013 | WO2013170627A1 Method of device for converting rotary motion to reciprocating percussion motion and device for converting rotary motion to reciprocating percussion motion that implements the method |
| 11/21/2013 | WO2013170626A1 Damage-proof drive component device method and damage-proof drive component device using the method |
| 11/21/2013 | US20130307315 Launch platform for high wall mining |
| 11/13/2013 | CN103388475A Multilayer-impacting head small-resistance high-efficiency digging apparatus |
| 11/06/2013 | CN103382840A Punch-cutting mining method and punch-cutting mining machine implementing method |
| 11/05/2013 | US8573705 Mining apparatus with precision navigation system |
| 10/30/2013 | CN203257417U Hinging type skid shoe structure for plough head of coal plough |
| 10/30/2013 | CN203257414U Quick-disassembly and assembly rotary tool holder structure of coal planer |
| 10/30/2013 | CN203257413U Coal plough head capable of realizing reciprocating staggered planing |
| 10/30/2013 | CN203257412U Coal planer with planing chain horizontally arranged beside carriage |
| 10/24/2013 | DE10254021B4 Gewinnungsanlage für die mechanisierte Hereingewinnung von mineralischen Rohstoffen, insbesondere Kohle in Untertagebetrieben Recovery plant for mechanized Come extraction of mineral resources, especially coal in underground operations |
| 10/23/2013 | CN203248153U Coal planer and plane cutter thereof |
| 10/23/2013 | CN103362506A Coal plough cutter used for coal plough |
| 10/16/2013 | CN203239347U Fastening device for cutter of coal planer |
| 10/16/2013 | CN203239345U Forced tool retracting device of coal plough |
| 10/09/2013 | EP2647769A1 Milling head for use on a work machine |
| 10/09/2013 | CN203230418U Coal plough for steep coal seam |
| 10/08/2013 | US8551233 Dust scrubber |
| 10/03/2013 | CA2811622A1 Counterweight system for an industrial machine |
| 10/02/2013 | CA2810879A1 Boom and dipper handle assembly for an industrial machine |
| 10/01/2013 | US8544960 Chain guide for a driving chain of a mining machine |
| 09/30/2013 | CA2810790A1 Hoist drive for mining machine |
| 09/26/2013 | DE102012102511A1 Charcoal extracting plant used in coal mining industry, has increase profile whose upper edge is projected beyond upper edge of side profile, and loading ramp that is formed by arrangement of bits at leading and trailing gumption shoes |
| 09/26/2013 | CA2810067A1 Modular direct drive system for an industrial machine |
| 09/25/2013 | CN203214059U Pneumatic crushing rock drill |
| 09/25/2013 | CN203214058U Bidirectional punching mining machine |
| 09/25/2013 | CN203214057U Bidirectional lump coal impact-cutting machine |
| 09/25/2013 | CN203214056U Vertical lift lump coal cutting machine |
| 09/25/2013 | CN103321638A Coal plough |
| 09/18/2013 | CN103306674A Planing head of coal planer capable of realizing reciprocating and staggered planing |
| 09/18/2013 | CN103306673A Coal plough with plow chain horizontally arranged on sliding rack side |
| 09/11/2013 | CN203189016U Low-noise ore mining equipment |
| 09/11/2013 | CN1961134B Mining apparatus with precision navigation system |
| 09/11/2013 | CN103291295A Method for preventing reciprocating impact wear by roller and reciprocating impact excavator's wearproof roller |
| 09/11/2013 | CN103291293A Fully-mechanized coal mining planing and transporting unit |
| 09/11/2013 | CN102352755B 方箱盾构机 Square box shield machine |
| 09/04/2013 | CN103277098A Articulated-type sliding shoe structure for plough head of coal planer |
| 09/04/2013 | CN103277097A Rotary tool apron structure capable of being quickly disassembled and assembled of coal plough |
| 09/04/2013 | CN103277096A Coal plough and connection device thereof |
| 08/21/2013 | CN103256049A Coal drilling unit for comprehensive mechanized coal mining |
| 08/21/2013 | CN103256048A Mining method of coal drilling unit for comprehensive mechanized coal mining |
| 08/20/2013 | US8511757 Core breaker for a mining machine |
| 08/14/2013 | CN203130083U Single-head hydraulic drilling rig type coal mining machine |
| 08/07/2013 | CN102261244B Chain blocking device for tensioning plowing chain of coal plough |
| 08/01/2013 | US20130193743 Apparatus and Method for Mining Coal |