| 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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| 05/19/2011 | US20110115277 Method for steering a mining machine cutter |
| 05/19/2011 | CA2780734A1 Compact selective cutting machine |
| 05/18/2011 | EP2322759A2 Method for steering a mining machine cutter |
| 05/18/2011 | EP2156017B1 Shield control device for carrying out the longwall function of a longwall unit in the longwall face working in a mine |
| 05/18/2011 | CN201835836U Conveying mechanism of loader digger |
| 05/18/2011 | CN201835835U Cutting pick with diamond composite layer at end part |
| 05/18/2011 | CN201835834U Cutting pick with diamond layer in protective ring of matrix |
| 05/18/2011 | CN201835833U Cutting tooth with alloy ring around groove of substrate |
| 05/18/2011 | CN201835832U Protective device of flexible part of heading machine |
| 05/18/2011 | CN1676876B Spiral coal-loader type underground coal storage device |
| 05/18/2011 | CN102061917A Heading machine-mounted foam dedusting system |
| 05/18/2011 | CN102061916A Power rear-mounted telescopic arm for tunneling machine |
| 05/12/2011 | WO2011054334A1 Milling drum |
| 05/12/2011 | US20110109148 Road grading pick with washer |
| 05/12/2011 | US20110109147 Block and sleeve with rotation-inhibiting feature |
| 05/12/2011 | DE102009052351A1 Fräswalze Milling drum |
| 05/11/2011 | EP2318656A1 Chisel holder having a weld as a wear protection element |
| 05/11/2011 | CN201826846U Continuous miner and dust collector thereof |
| 05/11/2011 | CN201826845U Arch bridge crawler slag-raking machine |
| 05/11/2011 | CN201826844U Auto-revolving pick |
| 05/11/2011 | CN201826843U Alloy body welding structure |
| 05/11/2011 | CN201826842U Coal-winning machine reducer planet carrier |
| 05/11/2011 | CN201826841U Coal mining equipment and crushing mechanism thereof |
| 05/11/2011 | CN201826839U Wear-resistant guiding device of coal planer planning body |
| 05/11/2011 | CN102052080A Mechanical drive dual-disc development device for development machine |
| 05/11/2011 | CN102052058A Method for producing novel high-grade rock drilling diamond compound tooth |
| 05/11/2011 | CN101091037B Chisel holder system |
| 05/05/2011 | WO2010129978A3 Cutting device for a mining machine |
| 05/04/2011 | CN201818310U Conveying trough device for bucket loader |
| 05/04/2011 | CN201818307U Retractable cutting arm of tunneling machine |
| 05/04/2011 | CN1821545B Attachment support of mining device |
| 05/04/2011 | CN102042017A Auxiliary coal charging device of thin seam coal mining machine |
| 04/28/2011 | WO2011048006A2 Bit, in particular a round shaft bit |
| 04/28/2011 | WO2011008694A3 Shear resistant excavation component |
| 04/28/2011 | WO2010129977A3 Cutting tool for a mining machine |
| 04/28/2011 | DE202009014880U1 Meißelhalter und Basisteil zur Aufnahme eines Meißelhalters Bit holder and base part to receive a chisel holder |
| 04/28/2011 | DE202009014879U1 Meißelhalter und Basisteil Bit holder and base |
| 04/28/2011 | DE112009001038T5 Block und Hülse mit Drehverhinderungseigenschaft Block and sleeve with anti-rotation feature |
| 04/27/2011 | EP2313612A1 Full sleeve retainer for step-shank of tool |
| 04/27/2011 | CN201810317U Machine integrated with breaking, loading, carrying, spraying and tunneling for a rock roadway |
| 04/27/2011 | CN201810316U Double-chain driving device of first conveyer of digging machine |
| 04/27/2011 | CN201810315U Enhanced cutting pick handle |
| 04/27/2011 | CN201810314U Cannon head center cutter |
| 04/27/2011 | CN201810312U Tunnel mining machine |
| 04/27/2011 | CN201810309U Improved engineering machine based on digger |
| 04/27/2011 | CN201810307U Cutting mechanism for heading machine |
| 04/27/2011 | CN102031970A Automatic cutting excavating machine |
| 04/27/2011 | CN102031969A Ultrasonic impulse dust collector of development machine |
| 04/27/2011 | CN102031968A Tunnelling and shoring integrated machine and telescopic boom thereof |
| 04/21/2011 | US20110089747 Retention assembly for cutting bit |
| 04/21/2011 | US20110089746 Rotatable cutting tool-tool holder-base assembly |
| 04/21/2011 | DE102009049780A1 Meißel, insbesondere Rundschaftmeißel Chisel, especially round shank chisel |
| 04/20/2011 | CN201805153U Electrical control cabinet and coal mining machine |
| 04/20/2011 | CN201802440U Height adjustable structure of first conveyer machine tail for tunneling machine |
| 04/20/2011 | CN201802405U Diesel engine type drum open continuous miner |
| 04/20/2011 | CN201802404U Automatic atomizing and dust-reducing control system of development machine |
| 04/20/2011 | CN201802403U Continuous coal mining machine shoveling plate |
| 04/20/2011 | CN201802402U Guide wheel |
| 04/20/2011 | CN201802401U Half-shaft connecting device of tunneling machine |
| 04/20/2011 | CN201802400U Drilling milling and beam assembling all-in-one machine for coal roadway |
| 04/20/2011 | CN201802398U Hard rock boring machine |
| 04/20/2011 | CN102027171A Road grading pick with washer |
| 04/19/2011 | US7926883 Spring loaded pick |
| 04/14/2011 | DE112009001119T5 Carbidblock- und Hülsenverschleißfläche Carbidblock- and sleeve wear surface |
| 04/13/2011 | EP2307669A1 Method for controlling a cutting extraction machine |
| 04/13/2011 | CN201796253U Touch-type automatic control device of cantilever-type tunnel boring machine |
| 04/13/2011 | CN201794610U Drilling, loading, anchoring, supporting and transporting integrated machine in high outburst mine coal drift |
| 04/13/2011 | CN201794609U Drilling, loading and supporting all-in-one machine for coal roadway of high outburst coal mine |
| 04/13/2011 | CN201794589U Star-wheel type development machine loading mechanism with coal braking function |
| 04/13/2011 | CN1975110B Arrangement for the admission of pressurized water to spray systems |
| 04/13/2011 | CN102011586A Integrated coal mining facility and coal mining machine thereof |
| 04/13/2011 | CN101476465B Inner-atomizing development machine |
| 04/13/2011 | CN101175894B Exploitation method and device |
| 04/12/2011 | US7922257 Circular-shank tool comprising a tool holder |
| 04/12/2011 | US7922256 Circular-shank tool comprising a tool holder |
| 04/07/2011 | WO2011040806A1 Segments and apparatus for high wall mining including fluid feed |
| 04/07/2011 | WO2011006181A8 Advancing machine |
| 04/07/2011 | US20110080037 Rotatable Cutting Tool With Through Coolant |
| 04/07/2011 | US20110080036 Spring Loaded Pick |
| 04/07/2011 | US20110080034 Milling machine, in particular surface miner, and method for mining milled material of an open cast surface |
| 04/07/2011 | DE202011001803U1 Kohlenhobel mit U-förmigem Führungsstück Coal plow with a U-shaped guide piece |
| 04/06/2011 | EP2305433A1 Impact demolition tool |
| 04/06/2011 | CN102004483A Fully-mechanized mining digital manless working face control system |
| 04/06/2011 | CN102003200A Small mining combined dust remover |
| 04/06/2011 | CN102003183A Intelligent type heading machine |
| 04/06/2011 | CN102003182A Rotary air suction hood of dust removing device of tunneling machine |
| 04/06/2011 | CN102003181A Matched dust removal system device of development machine |
| 04/06/2011 | CN102003180A Continuous miner and dust removal device thereof |
| 04/06/2011 | CN102003179A Saw blade type cave development machine |
| 04/06/2011 | CN102003178A Retractable tunneling machine convenient for underground transport |
| 04/06/2011 | CN101321587B A liner component for use in mining and quarrying industries |
| 04/06/2011 | CN101297100B Circular-shank tool comprising a tool holder |
| 03/31/2011 | WO2011037799A1 Rotatable cutting tool with hard cutting member |
| 03/30/2011 | CN201778820U Speed regulation operating platform for vibratory ore-drawing machine |
| 03/30/2011 | CN101994512A Technology for manufacturing cutting tooth for mining coal and minerals |
| 03/30/2011 | CN101994511A Construction technique for cutting and splitting rectangle grooves of railway and road tunnel |
| 03/24/2011 | US20110068616 Rotatable cutting tool with hard cutting member |
| 03/23/2011 | CN201771508U Integral-type electric shovel car controlled by hand or remote control |
| 03/23/2011 | CN201771507U Coal miner rocker arm external spray device |
| 03/23/2011 | CN201771506U Motor connecting device for first conveyer of tunneling machine |