| 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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| 06/29/2004 | US6755480 Drum-type dual channel water-jet assisted cutting head |
| 06/24/2004 | US20040119327 Rear mounted bit holder water spray |
| 06/24/2004 | US20040119326 Positioning and repositioning systems for fixing toolholders to the drums of milling machines |
| 06/24/2004 | US20040118615 Rotatable bit having a resilient retainer sleeve with clearance |
| 06/24/2004 | DE10164804B4 Protective sleeve for bit holder on cutting tool assembly comprises split ring portion which is radially compressed by smaller opposite end portion as sleeve is hammered and axially displaced on bit holder |
| 06/16/2004 | EP1427913A1 Embossed washer |
| 06/16/2004 | EP1427911A1 Method for automatic generation of a drill pattern |
| 06/10/2004 | WO2004035990A9 Automated excavation machine |
| 06/09/2004 | CN2620089Y Hard alloy tool bit coal cutting machine cutting pick with back conic structure |
| 06/03/2004 | DE202004005920U1 Kohlenhobelmeißel Carbon planing tools |
| 06/02/2004 | EP0990088B1 Nozzling device for chisel bits and a method for nozzling round shank chisel bits of a holing machine |
| 05/27/2004 | DE202004004652U1 Conveyor for coal comprises troughs connected by pivots with cutter guide formed in walls, guide rail being mounted in this consisting of jointed sections, joints in rail being staggered from those between troughs |
| 05/26/2004 | EP1421254A1 Method of orientation of a rock drilling rig |
| 05/25/2004 | US6739327 Cutting tool with hardened tip having a tapered base |
| 05/11/2004 | US6733087 Pick for disintegrating natural and man-made materials |
| 04/29/2004 | WO2004036063A1 Clip for pick in a pick holder |
| 04/29/2004 | WO2004035990A2 Automated excavation machine |
| 04/29/2004 | CA2464558A1 Automated excavation machine |
| 04/22/2004 | DE20219154U1 Cutting insert for cutting or mulling tool has setting-down surface with at least one recess extending at least as far as transition region |
| 04/22/2004 | DE10296671T5 Drehbares Schneidewerkzeug mit isoliertem Haltehülsenanschlag A rotary cutting tool holder with insulated sleeve stop |
| 04/14/2004 | EP1283936A4 Cutting tool and method of using same |
| 04/14/2004 | CN1488561A Side-dumping fully-hydraulic coal-loading machine |
| 04/08/2004 | WO2004029412A1 Device for producing a gas-liquid mixture in the vicinity of cutting tools |
| 04/08/2004 | US20040065484 Diamond tip point-attack bit |
| 04/01/2004 | DE202004001476U1 Guiding device to be attached to scraper chain conveyor, comprising several differently shaped extensions engaging with matching areas for safe joining |
| 04/01/2004 | DE202004001301U1 Bergbaumaschine mit lösbarem Führungsstück und Führungsstück hierfür Mining machine with removable guide piece and guide piece for this |
| 04/01/2004 | DE202004000516U1 Hobel für die untertägige Gewinnung Planing for underground mining |
| 03/30/2004 | US6712431 Cutting arrangement |
| 03/25/2004 | DE10261159B3 Chisel tooth mounting for road planing machine has mounting insert plug with clamping wedge action operated by longitudinal screw |
| 03/18/2004 | US20040051370 Manually replaceable protective wear sleeve |
| 03/09/2004 | US6702393 Rotatable cutting bit and retainer sleeve therefor |
| 03/04/2004 | DE4202246B4 Gewinnungseinrichtung Obtaining means |
| 03/04/2004 | DE20320164U1 Locking system for holding cutting knife inside pocket in holder, especially for mining picks, comprises bolt held in place by plug protruding from arm of plastic clamp |
| 03/04/2004 | DE20320163U1 Meißelhalter für einen Hobelmeißel Chisel holder for a planing tools |
| 03/04/2004 | DE20320161U1 Meißelhalter für einen Hobelmeißel eines Kohlen- oder Gewinnungshobels und Hobelmeißel Chisel holder for a planing tools of a coal or mining plow and planing tools |
| 03/04/2004 | DE19637789B4 Hobel für die untertägige Gewinnung von Kohle u. dgl. U planing for underground mining of coal. Like. |
| 03/02/2004 | US6698843 Method and apparatus for remote self-propelled conveying in mineral deposits |
| 02/26/2004 | WO2004016900A1 Mobile working tool with a tool head |
| 02/18/2004 | EP1389264A1 Rotatable cutting bit and retainer sleeve therefor |
| 02/17/2004 | US6692083 Replaceable wear surface for bit support |
| 02/12/2004 | US20040026983 Monolithic point-attack bit |
| 02/12/2004 | US20040026132 Pick for disintegrating natural and man-made materials |
| 02/11/2004 | EP1387925A2 Support base for toolholder of a milling drum |
| 02/05/2004 | DE19624363B4 Meißelbestückte Gewinnungsmaschine mit Bedüsungsprüfeinrichtung Chisel-tipped extraction machine with Bedüsungsprüfeinrichtung |
| 02/05/2004 | DE10161713B4 Meißelhalterwechselsystem Chisel holder changing system |
| 02/03/2004 | US6685273 Streamlining bit assemblies for road milling, mining and trenching equipment |
| 01/13/2004 | CA2172457C Hollow auger head assembly |
| 01/08/2004 | US20040004389 Replacable wear surface for bit support |
| 01/06/2004 | US6672673 Ore pass inspection system |
| 01/02/2004 | EP1373683A1 Positioning and repositioning systems for fixing toolholders to the drums of milling machines |
| 12/31/2003 | CN2596012Y Coal cutting teeth of coal mining machine |
| 12/25/2003 | US20030234569 Coal and rock cutting pick |
| 12/24/2003 | CN2594466Y Self-control caving coal hydraulic support |
| 12/24/2003 | CN2594464Y Hydraulic dust remover |
| 12/23/2003 | US6666521 System for controlling cutting horizons for continuous type mining machines |
| 12/18/2003 | US20030230927 Replacable wear surface for bit support |
| 12/18/2003 | US20030230926 Rotating cutter bit assembly having hardfaced block and wear washer |
| 12/18/2003 | DE19982113C1 Surface mining control arrangement, having position sensor and microprocessor, for transmitting detected position- and/or movement direction signals over radio to shield control arrangement |
| 12/17/2003 | EP1216343B1 Device for detachably fixing a rounded-shaft tool into a tool bushing |
| 11/27/2003 | WO2003098001A1 Fixing device for a shank chisel |
| 11/27/2003 | DE10221764C1 Holder for shaft chisel in milling machine has upper part with seating for shaft chisel secured to base part with clamp screw and clamp element for securing chisel shaft |
| 11/27/2003 | DE10210441C1 Meißelhalter mit Meißel Bit holder with chisel |
| 11/20/2003 | US20030213354 Cutting tool holder with cutting tool |
| 11/19/2003 | EP1362163A1 A coal and rock cutting pick |
| 11/19/2003 | EP1163424B1 Cutting tool holder assembly |
| 11/13/2003 | US20030209366 Rotatable point-attack bit with protective body |
| 11/12/2003 | EP1360396A1 Control of the advance and cutting roller height of a shearer loader according to the load of the roller carrier arm |
| 11/12/2003 | CN1455842A 采矿系统 Mining system |
| 11/11/2003 | US6644755 Fixture for a round shank chisel having a wearing protection disk |
| 11/11/2003 | US6644753 Method and apparatus for remote self-propelled conveying in mineral deposits |
| 11/06/2003 | WO2003091541A1 Trough pan for a face conveyor with a loading ramp |
| 11/05/2003 | EP1127213B1 Cutting bit support member with a flange provided with an undercut for removal |
| 10/02/2003 | US20030184145 Drum mounting plate for cutting tool holder block |
| 09/24/2003 | CN1444688A Coal and rock cutting pick |
| 09/23/2003 | US6623084 Mounting of a rotatable chisel in mining machinery |
| 09/18/2003 | US20030173819 Mining method for steeply dipping ore bodies |
| 09/18/2003 | US20030173818 Mining system |
| 09/17/2003 | CN1443267A Cutting tool and method of using same |
| 09/16/2003 | US6619757 Tool for a street milling, coal-cutting or mining machine |
| 09/16/2003 | US6619756 Chisel holder changing system |
| 09/11/2003 | DE20309314U1 Shaft speed sensor for mining drives has spur wheel with contactless probe |
| 09/09/2003 | US6616244 Method and arrangement for determining position of unmanned mining vehicles |
| 09/04/2003 | US20030164242 Displacement and support device for a portable power tool |
| 09/03/2003 | CN2570458Y Soldering-free cutter bit |
| 08/21/2003 | WO2003069121A1 The working head of a cutting tool |
| 08/20/2003 | EP1336030A1 Cutting tool assembly with replaceable spray nozzle housing |
| 08/20/2003 | CN1436916A Cutting pick box with built-in mining cutting machine pick |
| 08/19/2003 | US6607249 Conical bit penetrator pocket protector for earth displacement equipment |
| 08/14/2003 | WO2002012677A8 A coal and rock cutting pick |
| 08/14/2003 | US20030150442 Cutting tool and method of using same |
| 08/14/2003 | DE10214251C1 Nozzle for introducing water underground during mining and tunnel construction comprises hollow cylindrical nozzle body containing valve body having groove on its outer surface to introduce water jet from an inner chamber into pre-chamber |
| 07/31/2003 | WO2003063106A1 Method and system for parameter settings |
| 07/31/2003 | DE10001841C2 Baugruppe bestehend aus Halter und Schneidwerkzeug Assembly consisting of holder and cutting tool |
| 07/31/2003 | CA2470626A1 Method and system for rock drilling equipment function parameter settings |
| 07/30/2003 | CN1433500A Armored detector |
| 07/30/2003 | CN1432716A Feeding and supporting unit of movable drilling machine |
| 07/29/2003 | CA2254096C Cutting tooth for earthworking |
| 07/24/2003 | US20030137185 Rotatable tool assembly |
| 07/24/2003 | US20030137184 Rotary cutting head for a mining etc machine |
| 07/23/2003 | EP1276969A4 Mining machine and method |