| 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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| 03/06/2013 | CN202767990U Coal cutter slideway protective shield device |
| 03/06/2013 | CN202767989U Safe protection device of deep-dip-angle fully mechanized face pavement |
| 03/06/2013 | CN202767988U Cutting head and scraper anti-collision device for roadheaders |
| 03/06/2013 | CN202767980U Connecting device for first transport machine of heading machine to directly hook reversed loader |
| 03/06/2013 | CN202767979U Heading machine and shovel plate portion device |
| 03/06/2013 | CN202767978U Rotatable telescopic cutting device of comprehensive mechanical rock lane tunneling unit |
| 03/06/2013 | CN102953731A Digging and shovel impacting guide device of blocked coal shoveling machine |
| 03/06/2013 | CN102953730A Cutting pick-adjustable shearer drum |
| 02/28/2013 | WO2013027177A1 Shearer pick |
| 02/28/2013 | US20130052481 Hard face structure and body comprising same |
| 02/28/2013 | US20130049437 Mining system and apparatus |
| 02/28/2013 | US20130049435 Material and equipment recovery system |
| 02/27/2013 | CN202756000U Airborne temporary support frame |
| 02/27/2013 | CN202755976U Mine working face three-device combined control unit |
| 02/27/2013 | CN202755975U Heading machine cooling and spraying hydraulic system with secondary protection |
| 02/27/2013 | CN202755974U Internal mist spraying waterway structure of heading machine |
| 02/27/2013 | CN102943672A Automatic repaired hard-rock heading machine coal mining machine electric control device |
| 02/27/2013 | CN102943671A Coal mining equipment and data transmission system for same |
| 02/27/2013 | CN102943670A Transshipment machine and coal conveying system comprising same |
| 02/27/2013 | CN101821477B Extraction system for mineral extraction and retaining device for a sensor system therefor |
| 02/26/2013 | CA2534439C Geosteering detectors for boring-type continuous miners |
| 02/20/2013 | EP2558616A1 Hard face structure and body comprising same |
| 02/20/2013 | CN202746899U High-dipping coal-cutter rocker-arm forced lubrication device |
| 02/20/2013 | CN202745873U Pneumatic coal loader |
| 02/20/2013 | CN202745872U Flat pick for coal mines |
| 02/20/2013 | CN202745869U Efficient block mining machine |
| 02/20/2013 | CN202745866U Water-jet cutting and impacting mining machine |
| 02/20/2013 | CN102937023A Skylight opening groove on rear portion of top coal caving scraper conveying machine and scraper conveying machine |
| 02/20/2013 | CN102128032B Tramcar for storing and transferring rocks |
| 02/19/2013 | US8376467 Method for automatically producing a defined face opening in plow operations in coal mining |
| 02/13/2013 | CN202731919U Automatic cutting control system of coal mining machine |
| 02/13/2013 | CN202731918U Dedusting dust-absorbing inlet device for heading machine |
| 02/13/2013 | CN202731917U Coal mine mining machine cutting tooth |
| 02/13/2013 | CN202731916U Coal cutter cutting tooth |
| 02/13/2013 | CN202731915U Guide key type double-stretch balancing mechanism of heading machine |
| 02/13/2013 | CN202731914U Power head and excavating machinery including the same |
| 02/13/2013 | CN202731913U Wedge type cutting tooth rolling cylinder of coal mining machine |
| 02/13/2013 | CN202731912U End plate, coal cutter drum and coal cutter |
| 02/13/2013 | CN102927071A Hydraulic anti-jamming control system for drill loader |
| 02/13/2013 | CN102926752A First transporter device for heading machine |
| 02/13/2013 | CN102926750A Multi-arm breaking excavation-type heading machine |
| 02/13/2013 | CN102926748A Double-cutterhead double-transverse-cylinder full-face tunneller |
| 02/13/2013 | CN102220532B Extra-coarse crystal grain carbide alloy material used for cutting pick or road excavation teeth, and preparation method thereof |
| 02/07/2013 | WO2013020071A1 Material handling system for mining machine |
| 02/07/2013 | US20130033086 Automated find-face operation of a mining machine |
| 02/07/2013 | US20130033085 Stabilization system for a mining machine |
| 02/06/2013 | CN202718675U Movable placer mining and dressing machine |
| 02/06/2013 | CN102042017B Auxiliary coal charging device of thin seam coal mining machine |
| 02/06/2013 | CN101696630B Circular-shank tool |
| 01/31/2013 | US20130026811 Tool insert |
| 01/31/2013 | US20130026810 Cutting Tool Assembly with Protective Member |
| 01/31/2013 | DE102012014065A1 Schneidwerkzeuganordnung mit Schutzelement Cutting tool assembly with protective element |
| 01/30/2013 | EP2551082A1 Tool Insert |
| 01/30/2013 | CN202708535U Continuous miner and concentrated lubricating system thereof |
| 01/30/2013 | CN202708534U Automatic lubrication system and engineering machine |
| 01/30/2013 | CN202708228U High-pressure proportional reducing valve for mining |
| 01/30/2013 | CN202707981U Transmission system torque protective device and engineering machinery |
| 01/30/2013 | CN202707064U Remote control speed regulating device for hydraulic traction coal mining machine with large inclined angle |
| 01/30/2013 | CN202707063U Regulation and control device, electrical control system with regulation and control device and coal mining machine with regulation and control device |
| 01/30/2013 | CN202707062U Novel Remote control device of electric traction coal cutter |
| 01/30/2013 | CN202707061U Novel internal waterway system of heading machine |
| 01/30/2013 | CN202707060U Novel dust reduction spraying device for extraction of thin coal bed |
| 01/30/2013 | CN202707059U Atomizing sealing device of cutting portion of heading machine and heading machine |
| 01/30/2013 | CN202707058U Atomizing de-dusting system for heading machine |
| 01/30/2013 | CN202707057U Roadheader |
| 01/30/2013 | CN202707056U End unloading machine head for coal plough and coal plough |
| 01/30/2013 | CN202707055U Rotor wing type wear-resisting pickaxe-shaped tooth |
| 01/30/2013 | CN202707054U Guiding connection mechanism and tunneling device |
| 01/30/2013 | CN202707053U Cover plate structure for cantilever type roadheader |
| 01/30/2013 | CN202707052U Electrical control system of light-weight heading machine |
| 01/30/2013 | CN202707051U Adjustable coal blocking device and coal mining machine |
| 01/30/2013 | CN202707050U Novel mine entry-driving machine auxiliary cutting device |
| 01/30/2013 | CN202700213U Pipeline filter element type water quality purification device |
| 01/30/2013 | CN102905819A Pick tool and method for making same |
| 01/30/2013 | CN102900458A Mine automatic dedusting system and method |
| 01/30/2013 | CN102900012A Cutting tool assembly with protective member |
| 01/30/2013 | CN102116154B Built-in spraying water channel in road header |
| 01/23/2013 | EP2547830A1 Cutting pick, wear and mounting system for mining machine |
| 01/23/2013 | CN202690958U Duplex rack wheel group for coal mining machine |
| 01/23/2013 | CN202690062U Diesel powered full hydraulic continuous stripping machine |
| 01/23/2013 | CN202690060U Dust extraction device for dangling type tunneling head-on unit |
| 01/23/2013 | CN202690059U Automatic spray device for thin coal seam mining scraper conveyer transshipment point |
| 01/23/2013 | CN202690058U 喷雾装置和采煤机 Spray device and Shearer |
| 01/23/2013 | CN202690057U Inner spraying structure and heading machine |
| 01/23/2013 | CN202690056U Pick for embedding mining machinery |
| 01/23/2013 | CN202690055U Joint support component for top plate and base plate of comprehensive mechanization stone drift heading machine group |
| 01/23/2013 | CN202690050U Cutting part of heading machine |
| 01/23/2013 | CN202690046U Multifunctional coal loader |
| 01/23/2013 | CN202687863U Manual braking structure of brake of winch for scraper rock loader |
| 01/23/2013 | CN102889082A Mining machinery operation supporting platform |
| 01/23/2013 | CN102886322A Adjustable-type foam injection device for preventing cutting dust |
| 01/23/2013 | CN101994512B Technology for manufacturing cutting tooth for mining coal and minerals |
| 01/17/2013 | WO2013009172A1 Drag head and trailing suction hopper dredger |
| 01/17/2013 | DE102011079115A1 Rotatable tool for use in e.g. cutting machine utilized for removing hard concrete surface for road construction in e.g. civil engineering, has spring washer provided at cylindrical shaft behind annular flange |
| 01/16/2013 | CN202673293U Connecting device of scraper bucket of scraper type rock loader |
| 01/16/2013 | CN202673292U Back-portion scraper conveyer coal-blocking plate for underground coal mine fully-mechanized top coal caving |
| 01/16/2013 | CN102878976A Heading machine position and posture detecting system and heading machine |
| 01/16/2013 | CN102877845A Method for determining automatic coal cutting track of coal mining machine for fault zone |
| 01/16/2013 | CN102877844A Randomly and automatically expanding safeguarding device for reversed loader |
| 01/16/2013 | CN102877843A Mine mechanical supporting arm |