| 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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| 02/11/1988 | DE3633361C1 Shearer drum for underground mining |
| 02/11/1988 | DE3626135A1 Control for supplying the two cutting rolls of a shearer loader with different quantities of fluid |
| 02/09/1988 | CA1232629A1 Mounting for excavating implement and method |
| 01/27/1988 | CN87104947A Cooling liquid jets of spurting mouth of tool disk |
| 01/26/1988 | US4721341 Cutting head for a selective cutting machine |
| 01/21/1988 | DE3721802A1 Sprueheinrichtung fuer kuehlfluessigkeit aus duesen eines schraemkopfes Agent spraying device for COOLANT: jets from a cutting head |
| 01/21/1988 | DE3624111A1 Cutter retention for round-shank cutters, especially for use in roll-type crushers |
| 01/21/1988 | DE3624110A1 Apparatus for indicating the cutting level of an advanceable underground extraction system, especially of a planing system |
| 01/20/1988 | EP0253802A1 Device for spraying cooling fluid from nozzles on a cutter head |
| 01/14/1988 | DE3623958C1 Device consisting of a parallel-shank holder and a parallel-shank chisel |
| 01/12/1988 | US4718730 Cross-axis cutting assembly of a selective cutting machine |
| 12/29/1987 | US4715659 Mineral mining installations |
| 12/29/1987 | US4715658 Planing machine for the mining of minerals |
| 12/29/1987 | US4715657 For the extraction of coal |
| 12/22/1987 | US4714293 For a long wall mining device having cutters |
| 12/15/1987 | US4712321 Excavator tooth for earth moving equipment |
| 12/10/1987 | DE3618779A1 Cutting head, in particular for a partial advance working machine |
| 12/08/1987 | US4711504 Rotating cutter head |
| 12/08/1987 | US4711502 Apparatus for cutting excavations having a substantially planar face |
| 12/03/1987 | DE3618198A1 Method for the production of picks |
| 12/03/1987 | DE3618197A1 Plug-in notched cutter |
| 12/01/1987 | CA1229853A1 Process for spraying the bits and/or facing with pressurized liquid as well as apparatus for performing this process |
| 11/26/1987 | DE3631202A1 Control means for the admission of pressure fluid to the nozzles or nozzle groups, in engagement with the mineral, of the cutting drum of a selective-cut heading machine or a shearer loader |
| 11/24/1987 | US4708394 Methods of controlling the operation of mineral mining installations |
| 11/24/1987 | CA1229675A1 Device for determining the position of the cutting head of a drift advancing machine or of a winning machine |
| 11/11/1987 | EP0084530B1 Televised remote control of a continuous mining machine |
| 11/10/1987 | US4705321 Device for supplying fluid to a tool for breaking hard material |
| 11/04/1987 | CN87102875A Collision prevention device for rotary charging plate with universal rotary excavating arm |
| 10/27/1987 | US4702525 For mining coal |
| 10/22/1987 | DE3712484A1 Einrichtung zum verhindern einer kollision zwischen einer schwenkbaren laderampe und einem allseits schwenkbaren schraemarm Means to prevent a collision between a pivotable loading dock and a well-pivoting cutting arm |
| 10/15/1987 | DE3611446A1 Drum-shaped cutting body for a shearing machine |
| 10/13/1987 | CA1228081A1 Conveyor belt system for a continuous mining machine |
| 10/07/1987 | EP0240014A1 Coal cutter pick holder for fastening especially round shank picks on a coal cutting drum |
| 10/06/1987 | US4697850 Cutter drum for pavement profiler |
| 09/29/1987 | US4696518 Cutting machine |
| 09/24/1987 | DE3609754A1 Spraying arrangement for selective-cut heading machines |
| 09/23/1987 | CN87101751A Improvements in cutting machines |
| 09/17/1987 | DE3607938A1 Plough cutter, in particular for coal ploughs |
| 09/15/1987 | US4693518 Means for holding cutter bits |
| 09/09/1987 | EP0236126A1 Improvements in cutting machines |
| 09/09/1987 | EP0236086A1 An insert for a tool |
| 09/09/1987 | EP0235319A1 Spraying installation for heading machines |
| 09/08/1987 | US4691967 Apparatus for controlling the discharge of pressurized liquid from nozzles on a cutting drum of a mining machine |
| 09/02/1987 | EP0234793A1 Tip and mineral cutter pick |
| 08/25/1987 | US4688937 Methods of, and systems, for monitoring and/or controlling mobile cutting means |
| 08/25/1987 | US4688856 Round cutting tool |
| 08/06/1987 | DE3603442A1 Method and device for determining a fault location in a planing-distance measuring system |
| 08/05/1987 | EP0231107A1 Cutting tool and holder therefor |
| 08/04/1987 | US4684176 Cutter bit device |
| 07/28/1987 | US4682678 Gearing units for use with mining equipment |
| 07/28/1987 | CA1224814A1 Method and hydraulic system for controlling supply of fluid to combine for extracting minerals |
| 07/22/1987 | EP0229238A1 Mining tool for winning minerals, particularly coal |
| 07/21/1987 | CA1224502A1 Retainer for holding mineral cutter in a tool-box |
| 07/14/1987 | US4679858 Mining machine cutter pick insert |
| 07/14/1987 | US4679429 Hydraulic ram stroke monitoring apparatus |
| 07/07/1987 | US4678238 Coolant sleeve for mining tools |
| 07/07/1987 | US4678237 Cutter inserts for picks |
| 07/07/1987 | US4678236 Apparatus for working deposits by the open-cast working process |
| 06/25/1987 | DE3544493C1 Arrangement for the spray-liquid supply at a shearer drum |
| 06/24/1987 | EP0226537A2 Rock drill bit |
| 06/23/1987 | US4674802 Multi-insert cutter bit |
| 06/19/1987 | DE3544111A1 Cutting drum provided with nozzles for shearer loaders or selective-cut heading machines |
| 06/11/1987 | DE3543016A1 Interchangeable winning tool |
| 06/10/1987 | EP0225079A1 Mining machine |
| 06/10/1987 | EP0224548A1 Mining machine control system. |
| 06/04/1987 | DE3542665A1 Tool for removing rock and minerals and method of producing it |
| 06/03/1987 | EP0223896A2 Cutter chain link of a shearing chain |
| 06/02/1987 | US4669786 Core breaker |
| 05/26/1987 | US4668118 Tool |
| 05/26/1987 | US4668018 Rotary cutter with spray nozzles for removal of ores from mine faces |
| 05/26/1987 | US4668016 Mining machine with adjustable jib |
| 05/21/1987 | DE3539262A1 Control of winning machines in mining which automatically follow the coal deposit |
| 05/19/1987 | US4666214 Earth working tool bit and block assembly |
| 05/19/1987 | CA1221989A1 Cutting machine |
| 05/19/1987 | CA1221820A1 Rotatable cutting bit |
| 05/14/1987 | DE3539263A1 Method of determining the boundary areas between coal and rock at shearer loaders and heading machines for the automatic control of the same |
| 05/14/1987 | DE3539226A1 Rotary transmission leadthrough |
| 05/13/1987 | EP0221883A1 Device for preventing the collision of a loading apron of a shearing machine with its slewing boom or its loosening tool |
| 05/13/1987 | EP0221882A1 Device to protect from collision the loader and/or the boom of a cutting machine |
| 05/13/1987 | EP0221881A1 Method of monitoring the charge and/or the cooling of bits and device for carrying out the method |
| 05/12/1987 | US4664450 Holder for a pick, and the combination of a pick and holder |
| 05/12/1987 | CA1221711A1 Process for cutting rock as well as apparatus for performing this process |
| 05/06/1987 | EP0220335A1 Coal-cutting pick |
| 05/05/1987 | US4662685 Device for sealing a drift cross section driven by means of a cutting machine |
| 04/28/1987 | US4660892 Sectorial sprinkling device for coal mining |
| 04/28/1987 | US4660891 High pressure water valve |
| 04/28/1987 | US4660890 Rotatable cutting bit shield |
| 04/16/1987 | DE3534306A1 Method and arrangement for the strip winning of coal |
| 04/14/1987 | US4657308 Mineral cutter pick |
| 04/07/1987 | US4655508 Tool component |
| 04/07/1987 | CA1220233A1 Steering of mining machines |
| 03/24/1987 | US4652056 Mineral cutting device |
| 03/18/1987 | CN86106048A Equipments of mine planer |
| 03/18/1987 | CN86105656A Modular automatic controller, preferably programmable, in particular for mining plant |
| 03/17/1987 | US4650256 Apparatus for retaining a tool in machinery |
| 03/17/1987 | US4650255 Retainer for holding mineral cutter in a tool-box |
| 03/17/1987 | US4650254 Bit holder |
| 03/17/1987 | US4650253 Pick and the combination of a pick and holder |
| 03/10/1987 | US4648659 Method and hydraulic system for controlling supply of fluid to combine for extracting minerals |
| 03/05/1987 | DE3616170A1 Device for monitoring the rate of wear of picks of a cutter head |