| 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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| 05/22/2001 | US6234579 Cutting tool holder retention assembly |
| 05/17/2001 | DE19951848A1 Extraction machine for coal mining has nozzle which delivers current of air and second nozzle which delivers stream of water positioned so that mixture of air and water is fed on to cutter head, throttle valve ensuring constant flow rate |
| 04/26/2001 | WO2001029375A2 Cutting tool and tool holder assembly schneidwerkzeug und werkzeughaltevorrichtung |
| 04/26/2001 | WO2001029374A1 Cutting tool for breaking hard material, and a cutting cap therefor |
| 04/26/2001 | DE19951344A1 Coalmining machine dust suppression spray uses rigidly fixed filter to cover inner part bore plus radial flutes round inner part to flush out accumulated dust and dirt. |
| 04/24/2001 | US6220671 Cutting tool holder retention system |
| 04/24/2001 | US6220670 Method and apparatus for remote self-propelled conveying in mineral deposits |
| 04/12/2001 | WO2000020722A3 Cutting bit support member with a flange provided with an undercut for removal |
| 04/05/2001 | WO2001023710A1 Ore pass inspection system |
| 04/05/2001 | WO2001023709A1 Position determining device and method |
| 04/05/2001 | WO2001023708A1 Device for detachably fixing a rounded-shaft tool into a tool bushing |
| 04/05/2001 | CA2385794A1 Ore pass inspection system |
| 04/05/2001 | CA2385762A1 Position determining device and method |
| 04/04/2001 | EP0673468B1 Cutting tool having hard tip with lobes |
| 03/20/2001 | US6203111 Miner guidance using laser and image analysis |
| 03/15/2001 | WO2001018359A1 Dust suppression system for continuous type mining machines |
| 03/13/2001 | US6199956 Round-shank bit for a coal cutting machine |
| 03/13/2001 | US6199451 Tool having a tungsten carbide insert |
| 03/06/2001 | US6196636 Cutting bit insert configured in a polygonal pyramid shape and having a ring mounted in surrounding relationship with the insert |
| 03/01/2001 | DE19940974A1 Cutting roll for mining machine; has one or more cutting threads in support pipe and open cusp with several fragments, which are not connected together as well as pick holder with cutting tools |
| 03/01/2001 | DE10040609A1 Wassersprühdüse Water spray |
| 02/28/2001 | EP1079066A2 Excavator |
| 02/22/2001 | DE19938361A1 Arrangement for determining position of cutting machine at coal face employs an electronic magnetic sensor to detect changes in gap between cutter and coal conveyer |
| 02/13/2001 | US6186597 Pick system for mining ploughs, in particular coal ploughs |
| 02/08/2001 | DE19937252A1 Tensioning unit for conveying installation; has paired tensioning cylinders with oppositely inclined cylinder axes between runners of advancing units, with one pushing and one pulling cylinder |
| 02/06/2001 | US6183170 Cylindrical cutting device |
| 02/01/2001 | WO2000060213A3 Water jet assisted drum-type mining system |
| 01/30/2001 | US6179386 Drive chain channel arrangement for longwall shearer |
| 01/25/2001 | DE19933456A1 Chisel for splitting stone or asphalt comprises a head supporting a tip made of a hard ceramic material |
| 01/23/2001 | US6176552 Cutting bit support member with undercut flange for removal |
| 01/17/2001 | EP0943051B1 Device for damping vibrations in a part-face cutting machines |
| 01/16/2001 | US6173798 Tungsten carbide nickel- chromium alloy hard member and tools using the same |
| 01/16/2001 | CA2207532C Self-adjusting tooth/adapter connection system for material displacement apparatus |
| 01/10/2001 | EP1067272A1 Apparatus for forcing pipes in the underground |
| 01/10/2001 | EP1067271A1 Cutting tool holder retention system |
| 01/10/2001 | CN2414191Y Cable trough of scraper conveyer for mechanization coal mining face |
| 01/09/2001 | US6170917 Pick-style tool with a cermet insert having a Co-Ni-Fe-binder |
| 01/03/2001 | EP1064453A1 Mineral cutting apparatus etc. |
| 01/02/2001 | US6168240 Atmospheric detection system for an automated mining system |
| 12/28/2000 | DE19928288A1 Coalplough pick with pocketed shaft uses plug piece with jaw-corked shaft end to latch home when inserting the pick and positively guided via pocket wall guides. |
| 12/26/2000 | US6164728 Tool mounting assembly with tungsten carbide insert |
| 12/21/2000 | DE19927445A1 Spray jet, as used in the mining industry, is unblocked by depressing the split jet parts against a spring allowing the spray medium to flush the blockage |
| 12/14/2000 | WO2000075487A1 Cutting tool assembly with replaceable spray nozzle |
| 12/14/2000 | DE19925949A1 Arrangement for determining mining machine cutting horizon has sealed sensor carrier housing removably mounted on machine, containing pressure element and movable sensor head |
| 12/13/2000 | EP0897457B1 Cutting tool retention system |
| 11/30/2000 | DE19924683A1 Chisel or single-point cutter for an excavating, road drilling or mining machine is hard tipped by introducing bulk hard material into a tip recess and filling the interstices with a binder |
| 11/23/2000 | DE19922320A1 Moil chisel, to be used in mining or tunneling has wear and tear protection disc inserted horizontally between the chisel head and the upper surface of holding element |
| 11/23/2000 | DE19922208A1 Round shaft chisel with chisel head and chisel shaft, head having point inserted in head accommodation with basic part and fixed |
| 11/23/2000 | DE19922206A1 Tool for scraping, mining or road milling machine comprises round shaft chisel with head and shaft, wear protection disk being pushed onto shaft |
| 11/02/2000 | DE19931839C1 Device for lifting and conveying away waste material from a pipe cutter |
| 10/31/2000 | US6139112 Mining machine with internal water supply for the cutting drums |
| 10/17/2000 | US6132005 Detecting seam boundary using pick sound |
| 10/12/2000 | WO2000060213A2 Water jet assisted drum-type mining system |
| 10/11/2000 | EP1043478A1 Cutting tool holder retention assembly |
| 10/10/2000 | US6129422 Cutting tool holder retention system |
| 10/10/2000 | CA2150246C Cutting tool having hard tip with lobes |
| 09/28/2000 | WO2000057024A1 Cutting tool holder assembly |
| 09/28/2000 | DE19844052C1 Guide arrangement for drum-type mineral cutting machine has guide block pivotally connected on guide arm of cutting machine for movement and guide rail arranged on conveyor, with arm fit into pocket block |
| 09/27/2000 | CN1268190A A pick-style tool with a cermet insert having a Co-Ni-Fe-binder |
| 09/27/2000 | CN1056908C Method for mining coal bed in certain ploughing depth |
| 09/13/2000 | CN2396179Y High-pressure spray duster for drum coal cutting machine |
| 09/08/2000 | WO2000052303A1 Chisel holder changing system |
| 09/07/2000 | DE19960821A1 Mining machine pickbox and pickholder engage and are locked together by locking pin using pin bore angled downwards to draw tool into pickbox bore. |
| 09/05/2000 | US6113195 Rotatable cutting bit and bit washer therefor |
| 08/31/2000 | DE19908656C1 Meißelhalterwechselsystem Chisel holder changing system |
| 08/31/2000 | DE19907344A1 Arrangement for ensuring recovery-optimized position of mining coal face conveyor uses sensors fixing movements of selected charges, sending impulses to data converting control apparatus |
| 08/31/2000 | DE19856916C1 Befestigung für einen Rundschaftmeißel Fixing for a round shank chisel |
| 08/31/2000 | DE10001841A1 Holder for cutting tool which has shaft with outer diameter and tool fixture flange of one-piece construction with shaft, outer diameter of fixture flange being greater than that of shaft |
| 08/29/2000 | US6109699 Tow line equipped remote mining machine and method |
| 08/15/2000 | US6102486 Frustum cutting bit arrangement |
| 08/15/2000 | US6102485 Water seal arrangement |
| 08/10/2000 | DE19902766A1 Werkzeug für eine Straßenfräs-, Schrämm-, Bergbaumaschine oder dgl. Tool for Straßenfräs-, Schrämm-, mining machine or the like. |
| 08/08/2000 | US6099081 Point attack tooling system for mineral winning |
| 08/01/2000 | CA2203625C Continuous highwall mining machine with armless conveyor |
| 07/27/2000 | WO2000043636A1 Mounting of a rotatable chisel in mining machinery |
| 07/27/2000 | WO2000043596A2 Tool with wearing protection element for a street milling, coal-cutting, mining machine or the like |
| 07/27/2000 | DE19902070A1 Mining arrangement equipment incorporates extraction machine movable along extraction gallery, particularly roller abrasive machine bridging over as portal channel of conveyor and having chain wheel engaging in drive chain |
| 07/26/2000 | EP1021639A1 A cutting bit assembly for impinging an earth strata |
| 07/26/2000 | EP1021578A1 A PICK-STYLE TOOL WITH A CERMET INSERT HAVING A Co-Ni-Fe-BINDER |
| 07/26/2000 | CN1261126A Efficient dusting system carried by coal-mining machine by means of high-voltage charging and mist spray |
| 07/22/2000 | CA2297494A1 Conveyor apparatus for open-cut mining |
| 07/11/2000 | US6086160 Toolholder for milling drums of scarifying machines |
| 06/28/2000 | EP0851969B1 Device for reducing the danger of inflammability during the operation of a partial-cut tunnelling machine |
| 06/28/2000 | CN1053946C Pick holder extraction method, device and tool therefor |
| 06/22/2000 | WO2000025003A3 Extraction controller for mining - extraction machines |
| 06/15/2000 | WO2000034626A1 Cutting arrangement |
| 06/15/2000 | WO2000034625A1 Fixture for a round shank chisel having a wearing protection disk |
| 06/15/2000 | DE19857451A1 Schneid- oder Brechwerkzeug sowie Schneideinsatz für dieses Cutting or breaking tool and cutting insert for this |
| 06/14/2000 | EP1008721A1 Cutting or crushing tool and cutting insert therefor |
| 06/08/2000 | DE19851620A1 Underground mining spray nozzle for dusty gassy workings comprises main nozzle incorporating mist sprays joined to compressed air chamber via angled feed channels to issue in rear mixing spray |
| 06/06/2000 | US6070945 Cutting tool retainer |
| 06/06/2000 | US6070944 Phasing valve assembly for supplying water to a mining machine cutter drum |
| 05/31/2000 | DE4480466C2 Kombination aus einem Meißelhalter und einer austreibbaren Verschleißbüchse für eine Schrämmaschine Combination of a chisel holder and be expelled wear bushing for a cutting machine |
| 05/30/2000 | CA2169995C Cutter bit |
| 05/25/2000 | DE19954237A1 Stabilizing cutting arm on sectional scraper machine, by blocking hydraulic fluid supply to pivot drive unit at given arm working position and then activating second pivot drive unit for next position |
| 05/25/2000 | DE19954236A1 Vibration measuring and compensation device for sectional scraper machine, comprises sensors measuring jib arm bend stress and pivot position deviation |
| 05/25/2000 | DE19853190A1 Rotationswäscher mit schrägstehendem Demister Rotary scrubber with an oblique demister |
| 05/17/2000 | EP1000721A1 Toolholder for milling drums of scarifying machine |
| 05/16/2000 | US6062650 Continuous control system for a mining or tunnelling machine |
| 05/10/2000 | CN2377351Y Pickaxe type cutter bit for coal winning machine |