Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21C - Mining or quarrying › E21C 25 - Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
Patents for E21C 25 - Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam (2,629)
12/2010
12/08/2010CN201666149U Walking transfer machine
12/08/2010CN101906968A Tunneling machine
12/08/2010CN101906967A Floor-based shearer
12/08/2010CN101070761B Digging-protecting integrated digging-protecting machine
12/02/2010US20100301660 Cooling a ranging arm gear case on a longwall shearer
12/01/2010EP2061718B1 Transportation of sulphur from solid sulphur deposits, in blocks of large dimensions
12/01/2010CN201661296U C-shaped coal mining machine cutting part
12/01/2010CN101899974A Development machine and floating sealing device thereof
11/2010
11/24/2010CN201650283U Tunneling and mucking excavator
11/24/2010CN201650282U Detachable down-hole shovel loader
11/24/2010CN201650281U Header cutting mechanism
11/24/2010CN201650280U Integrated open cast coal mining machine
11/24/2010CN201650279U Ventilation structure
11/24/2010CN201650116U Multifunctional coal seam scouring-prevention jet flow drill lancing spray nozzle
11/24/2010CN101109446B Sealing device of disk shaped knife
11/17/2010CN201635764U Mounted connecting mechanism for tunneling machine and second transporter
11/17/2010CN201635741U Insertion plate loading device for tunneller
11/17/2010CN201635740U Spindle-end looseness-proof fixing structure
11/17/2010CN201635739U Cutting head for cutting part of tunneller
11/17/2010CN201635738U Rear supporting arm of cantilever type excavator
11/17/2010CN101463722B Roof bolter mechanism
11/10/2010EP2247823A1 Method for controlling longwall mining operations
11/10/2010CN201627581U Cutting head short-wall coal mining machine
11/10/2010CN101881166A Mining device and walking device thereof
11/10/2010CN101881163A Continuous miner and running part thereof
11/10/2010CN101881162A Drill loader
11/10/2010CN101493009B Middle groove of coal cutter and method for manufacturing same
11/03/2010CN201622754U Novel simulated coal mining device
11/03/2010CN101876247A Cutter drum extension mechanism
11/03/2010CN101876246A Coal road high-speed drivage single-arm outburst-preventing drilling anchor machine of high gas and outburst mine
11/03/2010CN101235717B Clear type loading device for coal mining tunneling machine
10/2010
10/28/2010DE102009003807A1 Gewinnungshobel für Hobelanlagen und Hobelanlage für geneigte Lagerung Mining plow for planer mills and planing machine for inclined storage
10/27/2010EP2242900A1 Method for controlling longwall mining operations by identifying boundary layers
10/27/2010CN201614932U 开槽机 Slot machines
10/27/2010CN101871364A Remote control method and device of thin seam working surface coal mining machine
10/27/2010CN101871362A Laneway material transportation vehicle for mines
10/27/2010CN101429867B Major cycle slanting extraction method for coal mining work surface
10/20/2010CN101864955A Transfer conveyor groove and transfer conveyor
10/14/2010WO2010118249A1 Retention assembly for cutting bit
10/13/2010CN201606078U 齿链式切石设备 Tooth chain cut stone equipment
10/13/2010CN201606077U 一种悬臂式掘进机的铲板 One kind of roadheader shovel board
10/13/2010CN201606075U 一种掘护机械 One kind of digging machinery protection
10/13/2010CN201606073U 一种挖掘装载机用新型履带梁连接机构 A new type of crawler loaders digging beam coupling mechanism
10/13/2010CN201606072U 薄煤层割煤机 Thin seam coal cutting machine
10/13/2010CN101858213A Drilling, loading, transporting and anchoring integrated machine with dual platforms and four arms for coal roadway
10/13/2010CN101858212A Four-drill auger miner
10/06/2010CN201599030U 斜井挖碴机 Inclined digging ballast machine
10/06/2010CN201599029U 液压耙斗装岩机 Hydraulic scraper rock machine
10/06/2010CN201599028U 极薄煤层变频调速遥控交流电牵引采煤机 Thin seam Frequency AC traction shearer remote
10/06/2010CN201599027U 一种悬臂式掘进机的装载机构 One kind of roadheader loading mechanism
10/06/2010CN1965249B Surface real-time processing of downhole data
10/06/2010CN1888389B Slitting type cutting coal-mining method capable of raising lump-coal yield and special large intercept coal-cutting drum
10/06/2010CN1717533B Thermal rock fragmentation application in narrow vein extraction
09/2010
09/30/2010US20100244545 Shearing Cutter on a Degradation Drum
09/29/2010CN201593378U Multifunctional jumbo loader
09/29/2010CN101845952A Movable three-arm top-assisting anchor rod and anchor cable construction drill carriage
09/23/2010US20100237681 Mining Machine, In Particular Surface Miner, As Well As Method For The Removal And Installation Of A Transport Device In A Mining Machine
09/22/2010CN201588629U External traction device of low seam mining machine
09/22/2010CN201588628U Low seam electric traction coal mining machine
09/15/2010CN201581894U Small cantilever-type tunneling machine
09/15/2010CN101832131A Surface real-time processing of downhole data
09/15/2010CN101832130A Surface real-time processing of downhole data
09/08/2010CN201574754U Sealing mechanism for coal cutter rocker arm planet mechanism
09/08/2010CN201574753U Cantilever type tunneling machine
09/08/2010CN201574752U Continuous coal mining machine with integrally preposed operating room
09/08/2010CN101338672B Digging laneway temporary support device
09/02/2010US20100219676 Roller drill or roller bit
09/02/2010US20100219675 Articulate continuous miner
09/01/2010CN201568054U Four-axle linkage type drilling tool for coal drilling machine
09/01/2010CN201568053U Novel tunneling machine for coal mine
08/2010
08/25/2010CN201560761U Open-driving hydraulic traction coal mining machine
08/25/2010CN201560760U Track type four-arm drill jumbo
08/25/2010CN101812984A Idler-free transmission device for slicing portion of drum shearer
08/25/2010CN101812974A Lifting platform of construction vehicle
08/25/2010CN101270663B Bestriding type reversed loader
08/24/2010US7779901 Downhole debris catcher and associated mill
08/11/2010CN201546723U Improved structure of sleeve
08/11/2010CN201546720U Simple and efficient rock hollowing tunneling machine
08/11/2010CN101798925A Cutting head type shortwall coal-winning machine and comprehensive mechanized coal mining technology
08/11/2010CN101230781B Tunneling and bolting integrative machine
08/05/2010US20100194176 Radial tool with superhard cutting surface
08/04/2010CN101796263A Roller drill or roller bit
07/2010
07/29/2010WO2010085730A1 Cold-formed cutting tool
07/28/2010CN1932240B Full-seam cutting, retreating, separate moving and full-caving comprehensive mechanized coal mining method
07/28/2010CN101787889A Comprehensive mechanized coal mining method through cantilever support
07/28/2010CN101787885A Hydraulic rock breaking method
07/22/2010US20100181820 Wear insert and retainer
07/21/2010CN201531268U Development machine capable of comprehensive coil production operation
07/21/2010CN201531267U Bearing mounting device of cutting spindle extension portion
07/14/2010CN201526270U Multifunctional jumbo loader
07/14/2010CN101775986A Process for stoping low coal seam containing ferric sulfide concretions and hard parting bands and hydraulic support thereof for fully mechanized mining
07/13/2010US7753620 Automotive road milling machine, in particular large milling machine
07/08/2010WO2010050872A9 Method and device for working rock
07/07/2010CN201521297U Cutting arm device of road header
07/07/2010CN101769736A Mining height instrument for continuous miner
06/2010
06/30/2010CN101761336A Coal cutting device for thin seam
06/23/2010CN201513176U Coal cutting chain
06/23/2010CN101749015A High pressure water hydraulic pressure balanced sealing system of development machine
06/22/2010US7740415 Manhole cutting and removing device
06/17/2010US20100148568 Cutter bit insert removal system and method
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