| 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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| 07/08/2008 | US7396086 Press-fit pick |
| 07/02/2008 | CN201080826Y Mining machine sliding and guide device supporting and /or guiding skid shoe |
| 07/02/2008 | CN201080825Y Tunneling machine belt transfer machine coal dropping point automatic rectification device |
| 07/02/2008 | CN101210580A Star-wheel synchronization hydraulic system for tunneling machine |
| 07/02/2008 | CN101210493A Large gradient roadheader |
| 07/01/2008 | US7393061 Coal plow cutter |
| 07/01/2008 | US7393059 Planing device and method for activating a planning device |
| 07/01/2008 | US7392896 Trough pan for a face conveyor with a loading ramp |
| 06/26/2008 | WO2008045728A3 Rotatable cutting tool and cutting tool body |
| 06/26/2008 | DE202007006122U1 Einrichtung zur Ermittlung des Schnitthorizonts einer Bergbaugewinnungsanlage und Rinnenelement hierfür Means for detecting the cutting horizon of a mining recovery plant and gutter member of this |
| 06/25/2008 | EP1935540A2 Rotary percussion drill bit with a hard material insert |
| 06/25/2008 | CN201078233Y Combined hard metal mine coal cutter bit |
| 06/25/2008 | CN201078232Y Buffer for final mechanical spacing of coal planer plough |
| 06/25/2008 | CN201078229Y Digger with hydraulic power oil easy to cool |
| 06/25/2008 | CN201078228Y Digger with hydraulic pressure support |
| 06/25/2008 | CN101205807A 旋转截齿 Rotary cutter |
| 06/24/2008 | US7390066 Method for providing a degradation drum |
| 06/19/2008 | WO2008070884A1 Method for identifying blockages in sprinkler devices and apparatus for carrying out this method |
| 06/17/2008 | US7387345 Lubricating drum |
| 06/12/2008 | US20080135301 Arrangement For Sucking Dust |
| 06/12/2008 | DE102004019383B4 Vorrichtung zur Halterung eines Schaftmeißels An apparatus for supporting a shaft tool |
| 06/11/2008 | CN201071723Y Development machine body and support body combined coupling structure |
| 06/11/2008 | CN201071720Y Drum-type open continuous miner |
| 06/10/2008 | US7384105 Attack tool |
| 06/04/2008 | CN201068802Y Feedleg type rock drill safeguard device |
| 06/04/2008 | CN201068798Y Down-hole coal mining equipment |
| 06/04/2008 | CN201068797Y Hard rock tunneller |
| 06/04/2008 | CN101191507A Hydraulic system for tunneling machine |
| 06/04/2008 | CN101191230A Surface treatment technique for coal winning machine cutting bit |
| 06/03/2008 | US7380889 Tool retainer |
| 06/03/2008 | US7380888 Rotatable cutting tool having retainer with dimples |
| 06/03/2008 | US7380887 Tool holder |
| 05/28/2008 | CN101189408A Method for manufacturing a cutting pick |
| 05/28/2008 | CN100390373C Armored detector |
| 05/27/2008 | US7377594 Cutting tool |
| 05/09/2008 | CA2610169A1 Method and apparatus for creating a slurry |
| 05/08/2008 | US20080106139 Pick with an Interlocked Bolster |
| 05/08/2008 | DE202008003008U1 Halter für Fräsmeißel Holder for cutting tools |
| 05/07/2008 | CN201057047Y Hard alloy coal cutting tooth for mining |
| 05/07/2008 | CN201057045Y Multi-bit rock drill |
| 05/07/2008 | CN101175895A Chisel holder |
| 05/07/2008 | CN101175894A Exploitation method and device |
| 04/30/2008 | CN101169038A Full automatic tunneling machine |
| 04/30/2008 | CN101168161A Internal sucking and external pressing smoke and dust collecting device |
| 04/29/2008 | CA2387046C Cutting tool for breaking hard material, and a cutting cap therefor |
| 04/24/2008 | US20080093912 Cutting Tool Holding Apparatus And Method Of Use |
| 04/23/2008 | CN201050372Y Low-power consumption remote controller for mining |
| 04/23/2008 | CN201050371Y Spraying and water-feeding device in tunneling machine |
| 04/23/2008 | CN201050370Y Common heading face dust arrester |
| 04/23/2008 | CN201050369Y Tunnelling machine enclosed type dust arrester |
| 04/23/2008 | CN201050368Y Tunnelling machine enclosed type dust arrester |
| 04/22/2008 | US7360845 Cold-formed rotatable cutting tool and method of making the same |
| 04/22/2008 | US7360844 Geosteering detectors for boring-type continuous miners |
| 04/17/2008 | CA2665079A1 Rotatable cutting tool and cutting tool body |
| 04/16/2008 | CN201047286Y Coal cutting forwarding vehicle |
| 04/16/2008 | CN201047285Y Connecting bracket of mining equipment with cantilever control device |
| 04/16/2008 | CN101161989A Coal mine tunnel initating machine |
| 04/15/2008 | CA2492678C Rotary cutting bit with material-deflecting ledge |
| 04/09/2008 | EP1706585A4 Core breaker for an earth strata cutting assembly |
| 04/09/2008 | CN201045297Y Continuous miner gas loaded nebulization dust removing system |
| 04/09/2008 | CN201045296Y Planer guiding device and chute node with planer guiding device |
| 04/02/2008 | CN201043467Y Gantry type intermediate haulage conveyor of heading machine |
| 04/02/2008 | CN201043466Y Inner atomizing device of development machine cutter head |
| 04/02/2008 | CN201043465Y Articulated guard board of development machine |
| 04/02/2008 | CN201043464Y Anti-sideslip back supporting |
| 04/02/2008 | CN100378292C Trough pan for face conveyor with loading ramp check |
| 04/01/2008 | US7350874 Method and device for extracting extraction products in underground mining |
| 03/20/2008 | WO2008034125A2 Remotely controlled mining machines, control systems, and related methods |
| 03/20/2008 | US20080067859 Shank Assembly |
| 03/20/2008 | US20080067858 Tool for Crushing Coke |
| 03/20/2008 | DE102006041572A1 Construction shield for underground mining, has skid and casing, between which plunger is arranged and sound sensors are affixed at skid and casing |
| 03/19/2008 | EP1761682B1 Tool holder |
| 03/19/2008 | CN201037421Y Large gradient development machine |
| 03/19/2008 | CN101146979A Coal mining device |
| 03/06/2008 | US20080054706 Extraction controller for coal mining |
| 03/06/2008 | US20080054705 Mining device |
| 03/06/2008 | DE102006041570A1 Dismantling device controlling method for underground mining, involves operating dismantling device in dependence on result of measurement, and holding concentration within wall during approximation to limit value without stopping device |
| 03/05/2008 | CN201031702Y Coal-charging device of mechanical boring machine |
| 03/05/2008 | CN201031698Y Inner transfer water combined circular saw blade |
| 03/05/2008 | CN201031697Y Coal mine down-hole continuously mining machine |
| 03/04/2008 | US7338135 Holder for a degradation assembly |
| 03/04/2008 | US7338134 Flighting and tool holder |
| 03/04/2008 | US7337865 Arrangement for passage control of mine vehicles |
| 02/28/2008 | WO2008024193A1 Cutting bit body and method for making the same |
| 02/28/2008 | US20080048484 Shank for an Attack Tool |
| 02/28/2008 | DE102006038939A1 Walzenlader für den Untertagebergbau Shearer loader for underground mining |
| 02/27/2008 | EP1891295A1 Method for manufacturing a cutting pick |
| 02/27/2008 | CN201027507Y Wet-type drilling can filler of electric coal drill |
| 02/21/2008 | WO2008020773A1 Injection sprayer and injection sprayer seat |
| 02/21/2008 | WO2008019866A1 A shearer loader for underground mining comprising a spray system |
| 02/21/2008 | WO2006105454A8 Trench wall ripper apparatus |
| 02/20/2008 | CN201025036Y Pick shape cutting tooth capable of recycling tooth cutting body |
| 02/20/2008 | CN201025032Y Light and small excavator vibration reduction device |
| 02/19/2008 | US7332007 Dusting device with multiple stream nozzles |
| 02/19/2008 | CA2380404C Cutting arrangement |
| 02/14/2008 | US20080036276 Lubricated Pick |
| 02/14/2008 | DE202007013350U1 Messerhalter für Grabmaschine Knife holder for grave machine |
| 02/07/2008 | US20080030066 Rotary cutting bit with material-deflecting ledge |
| 02/07/2008 | US20080030065 Cutting tool retention apparatuses |
| 02/06/2008 | CN201016297Y Safe sudden stop control device for scraper mechanical mucker |