| 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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| 03/05/1987 | DE3529266A1 Round-shank cutter |
| 03/03/1987 | US4647112 Rotary cutter for gouging out ore from mine faces |
| 03/03/1987 | US4647111 Sleeve insert mounting for mining pick |
| 02/26/1987 | DE3530361A1 Spray valve |
| 02/26/1987 | DE3527779C1 Shearer drum for underground mining |
| 02/25/1987 | EP0211766A1 Modular automation system, preferably programmable, particularly for mining machines |
| 02/19/1987 | DE3528441A1 Rotary transmission leadthrough |
| 02/19/1987 | DE3528440A1 Pick arrangement, in particular for coal ploughs and the like |
| 02/19/1987 | DE3527815C1 Cutter-pick holding device |
| 02/17/1987 | US4643483 Fluid supply system to rotary cutter heads on mining machines |
| 02/17/1987 | US4643482 Steering of mining machines |
| 01/20/1987 | US4637658 Cutters for use in mineral mining |
| 01/15/1987 | DE3524575A1 Cutting drum with internal spray system |
| 01/06/1987 | US4634186 Control system for longwall shearer |
| 01/02/1987 | DE3531781C1 Holder for a plough cutter for coal-winning machines |
| 01/02/1987 | DE3516332A1 Cutting pick for roller cutting machines |
| 12/30/1986 | US4632463 Combined base member and bit holder with protected retainer |
| 12/30/1986 | US4632462 Continuous miner-mounted mine ventilation system |
| 12/30/1986 | EP0207023A1 Device for supplying fluid to a tool for breaking hard material, said tool being mounted in a holder |
| 12/18/1986 | WO1986007409A1 Mining machine control system |
| 12/09/1986 | US4627665 Cold-headed and roll-formed pick type cutter body with carbide insert |
| 12/02/1986 | US4626034 Cutter-bit assemblies |
| 12/02/1986 | US4625815 Drilling equipment, especially for use in underground mining |
| 12/02/1986 | US4625439 Excavating tooth retaining means |
| 11/25/1986 | US4624505 Mineral cutter picks and pick assemblies |
| 11/12/1986 | EP0201073A2 Pick holder for a cutting tool |
| 11/11/1986 | US4621871 Quickly replaceable cutter socket |
| 11/11/1986 | US4621870 Support for a cutting tool for cutting hard material |
| 11/11/1986 | US4621869 Rotary cutting head |
| 11/05/1986 | EP0200699A2 Device for supplying fluid at tools for breaking solid material |
| 11/05/1986 | EP0200037A2 Device for supporting a cutting pick and for controlling the supply of spraying fluid to a driving machine |
| 11/04/1986 | US4620748 Method of and arrangement for loosening, loading and transporting of stratified minerals in underground elongated front longwalls |
| 10/29/1986 | EP0199712A2 Device for the intermittent feeding of axially shiftable picks of a cutter head with pressure fluids |
| 10/22/1986 | EP0198643A2 Mineral cutting picks |
| 10/08/1986 | EP0196336A1 Controlled segment spraying of shearer drums and shearer heads in mining and tunnelling |
| 10/07/1986 | CA1212271A1 Earthworking tool and mounting therefor |
| 10/01/1986 | CN85108377A Fan-shaped water spray gun for coal mining |
| 09/30/1986 | US4614134 Overload protection system for planetary gear drive |
| 09/17/1986 | EP0194561A1 Turning connection |
| 09/16/1986 | US4611417 Non-rotatable tooth for a cylindrical socket bore |
| 09/03/1986 | EP0193268A1 Mineral cutter pick |
| 09/02/1986 | US4609227 Cutting-tool mounting for rotary excavating head |
| 08/26/1986 | US4607891 Rotary retainer for mining bits |
| 08/26/1986 | US4607890 Guides for mineral mining machines |
| 08/05/1986 | US4603911 Pick holding arrangements |
| 07/30/1986 | EP0189393A1 Shearer |
| 07/23/1986 | EP0188188A1 Device for spraying a cooling liquid out of nozzles of a coal cutter drum |
| 07/23/1986 | EP0187872A1 Water feeder, especially for galleries driving machines |
| 07/22/1986 | US4601218 Gearing units for use with mining apparatus |
| 07/08/1986 | EP0150210A4 Continuous mining machine. |
| 06/25/1986 | EP0185571A1 Sector spraying device in coal mining |
| 06/17/1986 | US4595241 Digging tooth and holder therefor |
| 05/27/1986 | US4591209 Protecting device for partial-cut cutting machines |
| 05/20/1986 | US4589701 Cutting machine |
| 05/14/1986 | EP0181318A1 Device for feeding water under pressure to the nozzles at the periphery of a coal cutting tool |
| 05/13/1986 | US4588072 Scraper chain conveyor trough with reinforcing plate |
| 05/13/1986 | US4588071 Chain conveyor with diverging interleaved scrapers |
| 05/07/1986 | EP0180573A1 Device for feeding a liquid under pressure to a rotating machine part |
| 05/07/1986 | EP0180572A1 Device for the mining of rock, and round shank pick for this device |
| 04/29/1986 | US4585275 Process for spraying the bits and/or the facing with pressurized liquid as well as apparatus for performing this process |
| 04/22/1986 | US4583786 Mineral mining pick and holder assembly |
| 04/15/1986 | US4582364 Shear lock keeper ring |
| 04/15/1986 | CA1203098A1 Arrangement for supplying a pressurized liquid to a rotating machine part |
| 04/02/1986 | EP0176235A1 Mining machine |
| 03/25/1986 | US4578627 Device for correcting the control or the display of the position of a cutting tool of a cutting machine |
| 03/25/1986 | US4577892 Arrangement for supplying a pressurized liquid to a rotating machine part |
| 03/11/1986 | US4575156 Mining block and bit |
| 03/04/1986 | US4573744 Pick and the combination of a pick and holder |
| 02/26/1986 | EP0172438A1 Extensible and retractable vacuum air transport system |
| 02/25/1986 | US4572583 Cutting head for drift advancing machines and process for producing same |
| 02/18/1986 | US4571004 Mechanism for controlling the elevation of a coal planer |
| 02/18/1986 | US4571003 Apparatus for controlling the position of a mineral mining machine |
| 02/18/1986 | CA1200823A1 Cutting head for drift advancing machines |
| 02/12/1986 | EP0171375A1 High pressure water valve |
| 02/11/1986 | US4569558 Drag bit construction |
| 02/04/1986 | USH23 Dust control on long wall shearing machines |
| 02/04/1986 | US4568128 Rotary cutter heads for mineral mining machines |
| 02/04/1986 | US4568127 Cutting head for drift advancing machines |
| 01/21/1986 | US4565410 Apparatus for controlling the supply of high-pressure liquid to a cutter drum assembly |
| 01/14/1986 | US4564241 Power supply arrangement for pulled mining machines |
| 01/08/1986 | EP0167236A1 Mineral cutting device, water supply lance and cutter pick |
| 12/31/1985 | US4561698 Wear protector for tooth brackets on roadway surface cutting machines |
| 12/31/1985 | US4561697 Guides for mineral mining |
| 12/24/1985 | CA1198456A1 Cutting head for drift advancing machines and process for producing same |
| 12/24/1985 | CA1198455A1 Spray nozzle mounting for the cutting drum of a mining machine |
| 12/10/1985 | US4557525 Cutter bit assembly |
| 12/10/1985 | US4557524 Mining machine duct work arrangement |
| 12/10/1985 | CA1197866A1 Earthworking tool and method for protecting from abnormally high cutting loads |
| 12/04/1985 | EP0163590A1 Shear lock keeper ring |
| 12/04/1985 | EP0163432A1 Rotary, mineral cutting head |
| 12/04/1985 | EP0163068A1 Cutting head of a rock-cutting machine, especially a selective-cut heading machine |
| 12/03/1985 | US4556257 Horizontal edna miner |
| 11/26/1985 | US4555143 Apparatus for cutting rock |
| 11/26/1985 | US4555142 Supply of liquid media for a hydraulic-mechanically operating mine working machine with sword |
| 11/21/1985 | EP0161465A1 Rotating body of a cutting head of a selective-cut heading machine |
| 11/13/1985 | EP0160757A1 A holder for a pick, and the combination of a pick and holder |
| 11/05/1985 | US4550952 Mining machine with adjustable hood-scoop assembly |
| 10/22/1985 | CA1195460A1 Blower and dust collecting machine |
| 10/15/1985 | US4547020 Rotatable cutting bit |
| 10/09/1985 | EP0157286A1 Conveyor belt system for a continuous mining machine |