| 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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| 10/08/1985 | US4545621 Mining installation equipment |
| 09/25/1985 | EP0155355A2 Device for driving galleries with detachable pick holders |
| 09/24/1985 | US4542943 Earthworking tool for protecting from abnormally high cutting loads |
| 09/24/1985 | US4542942 Bit holder equipped with a spraying device |
| 09/03/1985 | US4538763 Nozzle conveniently assembled and disassembled |
| 08/27/1985 | US4537448 Excavating head with pick-controlled water supply |
| 08/27/1985 | US4537447 Device for cooling the bits of cutting machine |
| 08/14/1985 | EP0151230A1 Mining tool |
| 08/13/1985 | US4534597 Mining tool with automatic sprinkler control |
| 08/07/1985 | EP0150210A1 Continuous mining machine. |
| 08/06/1985 | US4533180 Fluid supply system for rotary cutter heads for mining equipment and to mining machines comprising rotary cutter heads having fluid supply systems |
| 08/06/1985 | CA1191514A1 Cutting drum |
| 07/30/1985 | US4531784 Mining machine with dust collector apparatus |
| 07/30/1985 | US4531782 Mining equipment |
| 07/30/1985 | US4531776 Safety cab for underground mining equipment |
| 07/16/1985 | US4529250 Mineral mining apparatus |
| 07/02/1985 | CA1189786A1 Cowl-like scrubber for a long-wall shearer |
| 06/18/1985 | US4523651 Coal auger guidance system |
| 06/05/1985 | EP0143514A2 Improvements in or relating to mineral cutter tools |
| 06/04/1985 | US4521058 Rotary cutter heads for mining machines |
| 05/22/1985 | EP0142124A2 Heading machine with controlled revolving picks |
| 05/15/1985 | EP0141799A1 Device for correcting the control or the indication of the position of the drum of a coal cutting machine |
| 05/15/1985 | EP0141749A2 Method for remote control with a direct view of a machine on the yard and transmitter-receiver arrangement adapted for carrying it out |
| 05/15/1985 | EP0141195A1 Tool |
| 05/14/1985 | US4516809 Device for interconnecting two sections of a longwall mining machine track |
| 05/14/1985 | US4516807 Fluid supply systems for rotary cutter heads for mining machines and rotary cutter heads comprising fluid supply systems |
| 05/14/1985 | US4516338 Gimbal mounted on frame with heavy metal plate sides |
| 04/30/1985 | US4514012 Excavatory machine for use in coal and other mining opertions |
| 04/30/1985 | US4514011 Power and liquid supply system for mining machines |
| 04/23/1985 | US4512612 System for mounting tooth-carrier sectors on a cutter wheel or a milling-cutter drum |
| 04/09/1985 | US4509799 Apparatus for controlling the position of a mineral mining machine |
| 04/02/1985 | US4508391 Mining machine for extraction of minerals |
| 03/26/1985 | US4506932 Device for cooling the bits of a cutting machine |
| 02/26/1985 | US4501449 Fluid supply for rotary cutter heads for mining machines |
| 02/14/1985 | WO1985000636A1 Continuous mining machine |
| 02/12/1985 | US4498707 Cutting roller |
| 02/05/1985 | US4497520 Rotatable cutting bit |
| 01/23/1985 | EP0131771A1 Drilling device, especially for underground mining |
| 01/08/1985 | US4492410 Apparatus for controlling the position of a mineral mining machine |
| 01/01/1985 | US4491370 For a winning machine |
| 12/25/1984 | US4489987 Mine tool bit with spring loaded button retainer |
| 12/25/1984 | US4489986 Wear collar device for rotatable cutter bit |
| 12/18/1984 | US4488759 Device for supplying fluid to a tool for breaking hard material |
| 12/18/1984 | US4488758 Combination of a mineral mining pick and a pick holder |
| 12/18/1984 | US4488608 Rotary stone-cutting head with hardened teeth inserts |
| 12/04/1984 | US4485655 Tool holder for a mining tool bit and method for making same |
| 11/27/1984 | US4484783 Retainer and wear sleeve for rotating mining bits |
| 11/27/1984 | US4484644 Steel and tungsten carbide |
| 11/20/1984 | US4483567 Apparatus for positioning supply connections into association with a mining extractor |
| 11/14/1984 | EP0125232A1 Process for cutting rock, and device for carrying out this process |
| 11/08/1984 | WO1984004353A1 Rotatable cutting bit |
| 11/06/1984 | US4480874 Retainer device for auger, roof and the like type bits |
| 11/06/1984 | US4480873 Flighting section and tooth holder |
| 11/06/1984 | US4480872 Modified strip mining apparatus |
| 11/06/1984 | US4480789 Water nozzle |
| 11/06/1984 | CA1177498A1 Device for cooling the bits of a cutting machine |
| 11/06/1984 | CA1177497A1 Device for cooling the bits of a cutting machine |
| 10/24/1984 | EP0122893A1 Excavating tool |
| 10/23/1984 | US4478457 Longwall mining apparatus for working thick seams |
| 10/23/1984 | CA1176665A1 Cooling system for cooling the bits of a cutting machine |
| 10/17/1984 | EP0122252A2 Method of sprinkling bits and/or working-faces by means of a pressurized fluid, and device for carrying out the method |
| 10/10/1984 | EP0121020A1 A mineral mining pick and holder assembly |
| 10/02/1984 | US4474411 Guides for mineral mining machines |
| 10/02/1984 | US4474287 Variable length conveyor assembly |
| 09/18/1984 | US4471998 Cutter drum assembly for longwall mining machines |
| 09/18/1984 | US4471997 Method for depositing dust during hydraulicking of minerals by a cutter roller of a mining machine |
| 09/11/1984 | US4470636 Mining machine excavator drum having liquid spray control |
| 09/11/1984 | US4470210 Mounting for excavating implement and method |
| 09/11/1984 | CA1174247A1 Mining equipment |
| 08/21/1984 | US4466667 Longwall shearer tracking system |
| 08/21/1984 | CA1173068A1 Cutting roller |
| 08/14/1984 | US4465407 Fixing bridge |
| 08/14/1984 | US4465318 Rotary cutting head for mining machines with means for inducing airflow and sensing thereof |
| 08/07/1984 | US4463973 Sealed hinge |
| 08/07/1984 | CA1172273A1 Cutter bit holder |
| 07/31/1984 | US4462638 Mining bit with improved split ring retainer |
| 07/31/1984 | US4462637 Control apparatus for inclination of longwall guide |
| 07/19/1984 | WO1984002739A1 Method for the control of feeding fluid medium to cutter-loader for freeing essential mineral and hydraulic system therefor |
| 07/19/1984 | WO1984002737A1 Cutter-loader for freeing essential mineral |
| 07/10/1984 | US4458951 Apparatus for controlling the position of a mineral mining machine |
| 07/10/1984 | US4458950 Energy supply unit for winning machines pulled by a traction mechanism for mining operations |
| 07/04/1984 | EP0112408A1 Clearing plate for a shearer drum |
| 07/03/1984 | USRE31622 Mining machine having rectangular thrust transmitting conveyor column |
| 07/03/1984 | CA1170284A1 Cutter bit assembly |
| 06/26/1984 | US4456307 Cutter bit assembly |
| 06/26/1984 | US4456306 Cooling system for cooling the bits of a cutting machine |
| 06/20/1984 | EP0111143A2 Core bit with damped guided cylindrical shank |
| 06/19/1984 | CA1169441A1 Energy supply equipment for extraction machines in mine workings |
| 06/12/1984 | US4453775 Cutting tool and method of manufacturing such a tool |
| 06/12/1984 | US4453774 Driving arrangement for longwall mining machines |
| 06/12/1984 | CA1169104A1 Tools and tool holders |
| 06/12/1984 | CA1169103A1 Spiral vane shearer drum |
| 05/29/1984 | US4451092 Cutting roller |
| 05/29/1984 | US4451091 Track for a longwall mining machine |
| 05/29/1984 | US4451089 Coal-mining machine |
| 05/16/1984 | EP0108430A1 Continuous excavating apparatus |
| 05/09/1984 | EP0108046A1 Cutting drum for a tunnelling machine and method of making it |
| 04/25/1984 | EP0106834A2 Device for conveying a fluid under pressure to a rotative part of a machine |
| 04/24/1984 | US4444278 Rotatable drilling head |
| 04/18/1984 | EP0105867A2 Apparatus for defining the position of the cutting head of a boring or mining machine |