| 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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| 04/02/2009 | US20090085395 Connection arrangements for mine conveyor sections |
| 04/02/2009 | DE202009001020U1 Werkzeughaltersystem Tool holder system |
| 04/01/2009 | CN201215017Y Pick steel body of lamination layer mining machine |
| 04/01/2009 | CN201215016Y Pick column teeth of lamination layer mining machine |
| 03/25/2009 | CN201212356Y Coal drill for coal mine |
| 03/25/2009 | CN101395341A 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 |
| 03/25/2009 | CN101392649A Antiwear laser strengthened pick and its processing method |
| 03/19/2009 | DE202009000249U1 Antriebsradlagerung mit Hohlachse und Stufenbolzen Antriebsradlagerung with hollow shaft and stepped bolt |
| 03/18/2009 | CN201209448Y Constant water lubricate external type inner spraying system |
| 03/18/2009 | CN201209447Y High speed shaft seal of coal mine comprehensive face coal cutter |
| 03/18/2009 | CN201209446Y Boring and protecting integrative machine |
| 03/18/2009 | CN101387200A A continuous miner having pivoting drilling platforms |
| 03/17/2009 | US7503629 Pick locking device including a clamp element and a retaining pin |
| 03/12/2009 | US20090066149 Pick with Carbide Cap |
| 03/12/2009 | US20090066147 Conveyor pan with improved edge shaping |
| 03/11/2009 | CN201206467Y Hydraulic support of frame head of reloading machine |
| 03/11/2009 | CN201206465Y Lifting and rotating coal cutting machine |
| 03/11/2009 | CN101382072A Diamond cast-in pick and making process thereof |
| 03/11/2009 | CA2743275A1 Electric mining shovel saddle block assembly with adjustable wear plates |
| 03/11/2009 | CA2639469A1 Electric mining shovel saddle block assembly with adjustable wear plates |
| 03/05/2009 | US20090058174 Attack Tool |
| 03/05/2009 | US20090058173 Hybrid retainer sleeve for tool inserted into block |
| 03/05/2009 | DE102008039883A1 Abtragelement mit selbstschärfender Spitze Excavating with self-sharpening tip |
| 03/04/2009 | CN201202476Y Atomizing dust removal apparatus of gas and water atomizing nozzle |
| 03/04/2009 | CN201202475Y Development machine |
| 03/04/2009 | CN201202474Y Multifunctional full hydraulic chain groove type shoveling rock drill |
| 03/04/2009 | CN100465411C A production method for chain picks of coal mines |
| 03/04/2009 | CA2639315A1 A cutting element having a self sharpening tip |
| 02/26/2009 | US20090051212 Reduced volume cutting tip and cutter bit assembly incorporating same |
| 02/25/2009 | CN201198759Y Plate type conveying mechanism of development machine |
| 02/25/2009 | CN201198758Y Fluent type loading device of coal excavating development machine |
| 02/25/2009 | CN101375017A Method for regulating the drive of a shearing or heading machine |
| 02/23/2009 | CA2639138A1 Shroud assembly |
| 02/23/2009 | CA2638857A1 Reduced volume cutting tip and cutter bit assembly incorporating same |
| 02/19/2009 | WO2008138298A3 Supply line strand |
| 02/18/2009 | CN201196093Y Remote control system for development machine |
| 02/17/2009 | US7490912 Round shaft chisel |
| 02/12/2009 | DE10357810B4 Drehbarer Einsatz mit einer elastischen, spielbehafteten Sicherungshülse Rotatable insert with an elastic, with play securing sleeve |
| 02/11/2009 | EP2021581A2 Cutting tool and method of assembling the cutting tool |
| 02/11/2009 | CN201193526Y Crushing mechanism for coal cutter in coal mine caving face |
| 02/11/2009 | CN201193525Y Vehicle-mounted temporary support device for development machine |
| 02/11/2009 | CN101363316A Wireless remote control technology for mechanical boring machine used in coal mine and applications |
| 02/05/2009 | WO2009018458A1 Use of foam to increase resistance to gas flow in mine applications and apparatus for delivering same |
| 02/04/2009 | CN201190568Y High strength special mounting frame for large-scale coal cutter |
| 02/04/2009 | CN201190567Y Balancing overflow assembly |
| 02/04/2009 | CN101358528A Roadheader with remote control member |
| 02/03/2009 | CA2515076C Scaling assembly |
| 01/28/2009 | CN201187301Y Pick-shaped mining cutter bit |
| 01/22/2009 | US20090019679 Tool |
| 01/22/2009 | DE19853190B4 Rotationswäscher mit schrägstehendem Demister Rotary scrubber with an oblique demister |
| 01/20/2009 | CA2403124C Arrangement for determining position of unmanned mining vehicles |
| 01/15/2009 | DE102007030658A1 Schaftmeißel Studcutter |
| 01/14/2009 | CN201180544Y Intelligent full-automatic combined coal mining system |
| 01/14/2009 | CN201180542Y Rock cutter bit used for coal mine working surface coal mining machine |
| 01/13/2009 | US7475949 Edge cutter assembly for use with a rotatable drum |
| 01/13/2009 | US7475948 Pick with a bearing |
| 01/13/2009 | CA2637425A1 Method of estimating life expectancy of electric mining shovels based on cumulative dipper loads |
| 01/08/2009 | WO2009003561A1 Shank chisel |
| 01/08/2009 | WO2009003233A1 Cutting tip and tool |
| 01/08/2009 | US20090008984 Method For Regulating the Drive of a Shearing or Heading Machine |
| 01/08/2009 | CA2699539A1 Cutting tip and tool |
| 01/07/2009 | EP2011961A2 Tool |
| 01/07/2009 | CN101338672A Digging laneway temporary support device |
| 01/07/2009 | CN101337345A Tool |
| 12/30/2008 | US7469972 Wear resistant tool |
| 12/30/2008 | US7469971 Lubricated pick |
| 12/25/2008 | US20080315666 Self-Propelled Machine For Cutting or Milling, In Particular A Machine For Working Deposits By Surface Mining |
| 12/24/2008 | DE102007026663B3 Safety device for round shank chisel, comprises two curve shaped pieces, where joint arrangement is designed between shaped pieces and has rotation axis perpendicular to level stretched by shaped pieces |
| 12/24/2008 | CN201170099Y Diamond compound pick head |
| 12/24/2008 | CN201170098Y Development machine cantalever segment |
| 12/24/2008 | CN101328808A High abrasion-proof diamond composite cutter bit |
| 12/24/2008 | CN101328807A Rotating flow distribution apparatus |
| 12/23/2008 | CA2583508C Method and system for mining hydrocarbon-containing materials |
| 12/18/2008 | DE102004030691B4 Werkzeug-Haltevorrichtung Tool-holding device |
| 12/17/2008 | CN101324191A Dust removal method and apparatus of common drivage working surface |
| 12/17/2008 | CN101324190A Method and device for closely removing dust of development machine |
| 12/17/2008 | CN100443693C Device for instantly injecting oil, spraying, suppressing dust and dispensing water |
| 12/16/2008 | US7464993 Attack tool |
| 12/16/2008 | CA2406623C Mining machine and method |
| 12/10/2008 | CN101321587A A liner component for use in mining and quarrying industries |
| 12/09/2008 | US7461903 Cutting tool |
| 12/04/2008 | WO2008145275A1 Method for monitoring and controlling machine resources and installations |
| 12/03/2008 | EP1997967A1 Tooth system |
| 12/02/2008 | US7458646 Rotatable cutting tool and cutting tool body |
| 11/27/2008 | WO2008141465A1 Subsurface positioning system and method for monitoring movement underground |
| 11/27/2008 | DE202008007212U1 Bergschneidwerkzeug Mount cutting tool |
| 11/27/2008 | DE202007014710U1 Gewinnungseinrichtung für die Mineraliengewinnung und Aufnahmeeinrichtung für ein Sensorsystem hierfür Extracting means for extracting minerals and mounting device for a sensor system therefor |
| 11/27/2008 | CA2688006A1 Subsurface positioning system and method for monitoring movement underground |
| 11/26/2008 | CN201155327Y Development machine |
| 11/25/2008 | US7455484 Cutting or breaking tool as well as cutting insert for the latter |
| 11/25/2008 | US7455368 Control mechanism for the extension units in the longwall face of a mine |
| 11/25/2008 | US7455367 Longwall support control for controlling the movements of longwall support units in the longwall of a mine |
| 11/25/2008 | US7454851 Cylindrical cutting element supported on a drum |
| 11/20/2008 | WO2008138316A2 Shield control device for carrying out the longwall function of a longwall unit in the longwall face working in a mine |
| 11/20/2008 | WO2008138298A2 Supply line strand |
| 11/20/2008 | US20080284235 Spring Loaded Pick |
| 11/20/2008 | US20080284234 Pick with a Reentrant |
| 11/20/2008 | US20080282584 Rolling Assembly Mounted on a Trencher |
| 11/19/2008 | CN101307691A Wind water mixed atomizing method for down-hole coal cutter fully-mechanized coal winning machine |
| 11/19/2008 | CN101307690A Combined automatic control coal cutter |